Flash Official Unlocked Firmware on S21 Ultra
ฝัง
- เผยแพร่เมื่อ 4 ต.ค. 2024
- Just got my S21 Ultra on launch day, time to flash official unlocked firmware from Samsung to remove all of the preloaded carrier bloat!
Use XAC for Canada, and XAA for US now. Ignore SJR, it now installs bloat when you set it up with a SIM card already installed.
Samsung USB Driver for Windows, Odin 3.14.1 3b, and Firmware Download Tool: (Frija) can be found in the archive.
Samsung Archive:
usheethe.com/ktc2
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Great video! If you are in the US make sure to use XAA not SJR. Many thanks from your neighbors to the south!
Without explanation?
SJR is the old unlocked for Canada on W, XAA is unlocked for US using U1, thats why they said to use XAA and not SJR because SJR doesnt exist for U1, only W. But now Canada now uses XAC for W.
So, TL;DR, use U1 XAA for US, or W XAC for Canada.
@@frozennorthproductions You can also flash U1 on the W model 🙂
I'm actually running U1 XAA on my W S21u because Canada gets super slow updates. Only issue is that Canadian 5G doesn't work on U1, Bixby alarm only reads Fahrenheit, no way to change it in any settings to Celsius, and Samsung Pay requires a Zipcode but we use Postal Codes in the frozen north.
There's a workaround for that last one but it still has its limitations using U1 in Canada so W XAC is preferred for the majority as you lose 5G and the metric system with Bixby lol
hey i know this is old but which version should i use for a g966u s21 plus, tried usc and it got the tmobile
This was the BEST tutorial I've seen. Special thanks for explaining the difference between the CSC and HOME_CSC files. I have a Work Profile for my job through KNOX and your explanation saved me a lot of time by using the HOME version! On ATT in the US and phone quit installing OTA updates since Feb. Nothing worked until I tried your steps and I am not current as of May 2022! Thanks again!
worked great for me in October of 2023 .. purchased a "W" version of the phone from amazon, needed it to be "U1" version for use on AT&T in USA, got it flashed and it's working perfect.
Thank you so much! I kept getting repartion or that one error! Was on the verge of giving up!!! But realized I was downloading 988u1 instead of 998u1 thank you so much!!
Thats one message I got when I was trying to do this with my A52 5G. I have an Indian version and want to Flash Canadian firmware. Model is SM-A52F and i loaded SM-A52W firmware.
Successfully flashed my S23 plus S916U model with firmware of S916U1 thumbs up to the helpful video
hi, did you choose csc or home_csc ?
@@WaNteDrv backup all your data and use Csc in order to avoid any bricking and get a clean install replacing the csc will wipe all your data while replacing home csc won't wipe your data but there is always a risk of not getting clean install along with boot loop issue
@@faisalb4 thx 🙏
Thanks dude, just flashed my S22+ using this tutorial. Appreciate it!
Thanks a bunch Ben; this really is very useful; finally I'm. able to get rid of the bloatware on my phone; and it is way better in terms of performance without the bloatware. Have a a great holiday.
Hi brother thank you so much!
I was able to successfully flash my Carrier Unlocked S21 Ultra from Verizon from U to U1. I went straight from 13 to 14, no issues whatsoever.
Although I got my ROM from Samfw because Frija didn't recognise my device.
Although, I used smart switch to backup everything first, then factory reset the phone before I started flashing. The flash only took like 5 minutes.
thanks i have the same s21 ultra from verizon and your comment gave me the courage to do it and now i got U1 as well.
@Nobodynoidea hi guys I have also the same phone unlocked from verizon u model .. can u explain why choosing u1 instead of u firmware ?
I was thinking what computer is that when it is not responding and you listed out the specs. I chuckled 😂
Can't be soft-bricked if you flash HOME_CSC but in the most cases you have to hard reset it so it's the same. When cross-flashing must be wiped (backup first with SmartSwitch). Great video 👍
5:18 for some reason this the only method of going into download mode that worked for me so thanks
Thanks a bunch mate, worked like a charm.
Helpful vid, man. Thanks.
Once the unlocked official Samsung firmware is flashed, can the phone be used with any carrier?
Edit: nevermind, i saw you answered this question already. Thanks!
following this with hope a flash will fix my mobile conection issues. will update once done :D
Hey James...
How did it go? Were you able to flash the device and repair the connections issues? Interested because I have similar issues with my S21 Ultra.
Thanks!
What does it happen if you try to use "Factory data reset"? It will keep the latest firmware or somehow go tho the initial firmaware? I suppose it will keep the last firmware, but just want to have a confirmation from you. Thanks. Great video, btw!
Hi Ben, What firmware should I select for SC-52B Model?
Hey nice video. After doing this will the new updates will come OTA? or you have to flash new firmware every month
OTA will work fine on W and U1. As long as you don't use a different carrier CSC. Gotta make sure it's W XAC or U1 XAA
I flashed unlocked firmware with tmobile csc on my S21 Ultra and it still boots up with Vzw/Vzw/Vzw, it refuses to let me off of Verizon carrier settings, other carrier sims work in the phone and get service but I can't get their settings so I don't get the proper frequency bands for those networks
Do I need to flash XAA csc?
Try flashing XAA for SM-G998U1 without a SIM card installed, set it up without a SIM card, and then install your SIM after. It might be reading the CSC off of the SIM and forcefully setting it during setup.
@@frozennorthproductions even that didn't work. No Sim, flashed U1 with XAA and it shows in service provider version vzw/vzw/vzw and even says vzw a 4th time in the line above next to G998U1-OYM
You can try changing your APN settings to match a different carrier with a different SIM card. Like if you toss in an AT&T SIM, if it still says Verizon, try changing your APN settings to AT&T APN, reboot, and it should switch.
There's another way to change the CSC using a phone code followed by your IMEI, I can't remember how to do it, I'll have to look it up.
You have to open the phone app, and dial *#272*YOUR-IMEI-NUMBER# and from the window that pops up, you can manually change your CSC to whatever the firmware supports.
Just to be sure though, you're flashing the entire XAA U1 firmware right? Like all files? BL AP CP CSC (not Home CSC) and then setting the phone up like new right? Cause if you're not flashing all files, and if you're using Home CSC, it's not going to remove the Verizon settings. It needs to be a full wipe cause you're converting the firmware. Once you're on the working unlocked XAA U1 firmware, you can use Home CSC for updates so you don't have to wipe everything but OTAs also work so you really never NEED Home CSC
@@frozennorthproductions 272 code doesn't work, Verizon blocks it. Also yes, I'm doing all files, with the normal csc file not home, the csc is literally locked to Verizon. But the phone isn't locked and gets service on other sim cards, just with vzw csc stuck to it
Great video with explanation! Thank you!
These method although cool it won't sim unlock your phone if is not paid off.
Correct, this will only provide the unlocked firmware from a factory unlocked device without all of the carrier bloat apps, it will still be SIM locked by the carrier until it's paid off and then you can request the SIM unlock if you wish to go to another carrier.
tysm for the turtorial it helped me so much but i just wanted to ask will you get updates after doing this thing, I hope yes
Once you flash U1 XAA or W XAC, the OTA updates come from Samsung instead of the carrier. That's the only difference now.
Hi please help me, I have AT&T s21 ultra G998U, can I flash US G99U1?
Hey there, Appreciate the video. I have a question. My just received the lastest august update. But the latest firmware i can find on the phone has a date from may. Will that create an issue?
Hey! Nice video but I have a question. Did you have to go into developer mode and turn on USB debugging go make this flash possible?
Yes, gotta tap on the build number in software version 7 times to unlock it
Hi. Can I flash SM-G996U1 XAA firmware on a SM-G996U XAA phone? Cant seem to find G996U XAA CSC, thanks
XAA is Samsung Official, it's only U1. U firmwares are Carrier Specific, so only TMB, ATT, etc.
The hardware is identical so you can flash U1 XAA. The only different is U1 doesn't have carrier bloat. U does.
Very nice to see you're still replying to comments under this video! I'm trying to get an unlocked sprint s21 to the XAA version (G991U ---> G991U1). Would it be fine to restore data from smart switch through usb from a computer after flashing?
Restoring user data is fine. It's the system data that needs to be wiped. Should work fine.
@@frozennorthproductions Thanks!
@@quazivigilante hey i have a s21 u version from tmobile and i want to get to u1 version. Can you help please?
@@vishald2302did you manage bro if yes how
@@vishald2302bro did you find solution my s21 plus is running on smg996u firmware I want to flesh smg996u1. Is u1 is working on your phone?
I definitely want to do this. When you mention to backup phone in the beginning, are you referring to the user data, or is there a way to back up the OS that is not covered in this video?
Plus the Fija link does not work?
Test I had issues with Google Drive so I set up my own cloud for links, so all the files are all over the place right now while I get everything sorted out. There's new links to the Google on the Discord to the latest files right now but you can also find the latest Frija on XDA.
As for backing up, I just meant user data using the Samsung Cloud backup, cause it will back up app data and everything
great video! i have 2 questions:
1. what is your recommended method to backup your data and settings? i thought about smart switch / google drive / samsung, but it takes HOURs to restore everything. i thought maybe an image backup to PC was fastest so i'm looking for any recommendations you got.
2. bought an unlocked att phone to switch to tmobile. still has att branding and some att apps/functionalities. i am thinking about U1 but also thought about flashing to tombile to take advantage of any incentives, such as the UI4 beta. thoughts on how to go about this?
thanks so much!
I use Samsung backup to OneDrive because it backs up everything without needing root access like other apps.
You would have to flash G998U TMB, have T-Mobile SIM, and then sign up for thr Beta, but I already have a video on how to get the beta without official access now cause in Canada we got left out from the programme
@@frozennorthproductions I'd appreciate your advice. I followed the guide exactly and used the latest 7/1/2023 U1 XAA firmware for my SM-S908U S22 Ultra. Before doing this, the firmware was TMB/TMK (Metro by T-Mobile) which was correct because my phone was originally from T-Mobile. After flashing the XAA firmware and restoring my backup, my phone is stuck on: TMK/TMK, TMK/XAU.
I don't understand what I did wrong. I thought my phone should be all XAA now. I used the right firmware and patched Odin. I didn't flash with a SIM card in. In fact I had an eSIM for a Verizon MVNO, not Metro or T-Mobile. I'm totally lost. Is this to do with my backup? Did I restore the old CSC somehow?
Pretty detailed video. Thank you. Unfortunately even though I followed everything step by step and did not have any problem during the process, the software version still shows the old one on my phone. Any idea why is that?
**Update**
I did move from (T-mobile) U into U1 on my S23 ultra , I used Home_CSC file instead of CSC , Not as mentioned in the tutorial, before I start the process I full backed up my phone , just in case if anything goes wrong , thankfully I didn't need the back-up !!
I did use Odin the patched version , the update is done, I took the risk ,now everything runs prefect and smooth , no any issues found, and all my data kept !!
السلام عليكم يامحمد
Neat, I'm assuming this would also work with the S20 ultra 🧐
You got it choom, you gotta use the SM-G988W/U/U1 version though. SM-G998W/U/U1 is only for S21 Ultra.
The difference is one number off, S20Ultra is G988 and S21Ultra is G998. The CSC should be the same though. So XAC for W and XAA for U1
tenks my dude
I have US version SM-G998U (VZW) and flashed the SM-G998U1 (XAA) firmware. It says successful. It takes about 5 minutes, then gets in a reboot loop. I was able to delete data and it rebooted back to VZW ;( Help???
Are you using patched odin or regular one? You gotta use the patched one to convert from U to U1
Great video So i bought mine from Samsung but chose the T-Mobile variant. This process would work for me?
Yep, just download AXX for SM-G998U1 instead. Process is exactly the same and you'll save some space too.
I need your help bro i have a 21 ultra and this was rooted and now i have the original software on my mobile but i can't open samsung pass
hello ben, my phone is currently an AT&T S22 that has been unlocked and the reason why i want to flash the unlocked firmware is so that I can recieve security patch and software updates from samsung because the carrier is not sending me updates and i don't live in America and use an AT&T sim. Once I flash the phone with the official unlocked firmware, will i be recieving updates automatically or do I still have to flash it every month? Also is it true that this whole flashing process will not work if the computer uses an AMD CPU?
If you flash the XAA version for that phone you will receive updates directly from Samsung, however it is no longer debloated from factory. Since OneUI 4.1, Samsung made it so when you insert a SIM, it will preinstall the carrier bloat, so your CSC will change to whatever SIM you're using. But, updates will still come directly from Samsung over the air like normal.
Also if you live in Canada, use XAC because it's in metric so a bunch of underlying stuff will be correct for Canada. XAA is imperial for the US. That's the only difference
Hello my AT&T s22 ultra runing on XAA it already unlocked don't get updates last update on August
Didnt work for me, i tried to remove ATT from my phone since i dont live in the US, it did update my software but didnt remove att.
Fantastic video!!!!! Please don't ever remove it! Does this trip Knox for any reason?
it's factory firmware, warranty is still valid, Knox will not be tripped, and this is how you unbrick your device from a softbrick, so it's the safest method.
Thanks
Hi Ben, I'm using an aS21 running SM - G991U Verizon firmware, unlocked Verizon. Which version should I use to remove all the bloatware from Verizon and make sure 5G works fine. I'm in Africa
Bro I have s22 ultra SM 908U . I want to change its firmware to SM 908U1 please make an video on it bro
download for odin is missing. Do you need patched?
Yeah, Google Drive dated their desktop app and half my Google Drive got wiped, they should be working again now.
I have a galaxy s21 ultra 5G I have no updates since April 1 2023, I am stuck on android 13, one ui 5.1, cs xaa
How to use 5g connetion in snapdragon phone? Now, i am in asia only support 4g.
My device doesn't want to boot up. Is this possible for such a device. It just turned off and don't want to boot up
I watched the video on flashing using Frija and Odin. I completed all steps but when the phone restarted it came up stating, basically, it did not work and gave me some options to 1. Try again 2. Reset to factory settings and 3. I do not remember the third option.
Do you know what else I can do? The phone is locked on frp mode. Do you think that has anything to do with it? If so, is there a way around it? Or do you know of a legitimate company that will unlock the phone? I am at the point of messing with it, that I am willing to spend a little bit to get the FRP lock removed if that will help.
My current phone is totally broken. I purchased this one because it was cheap and I am broke. Thought I could get it to work.
Thank you for any advice or help.
Great video.
FRP locks are illegal to remove and you need to contact someone who is able to do it with a tool used to remove FRP locks. Flashing new firmware will not remove an FRP lock because the lock is assigned to the phones serial number and has nothing to do with the firmware.
You also need to make sure it's the right hardware, if you're using an exynos model phone and flashing snapdragon firmware, it's going to fail every time, same goes if it's vise versa
@@frozennorthproductions Who is trust worthy to contact to use one of the FRP tools. Almost every application I have looked at seems to be a scam. Thank you for any advice.
just a question does it voids warranty or does it trips KNox and software status becomes unofficial?
Frija keeps saying error and not downloading firmware. What do I do please? I have a samsung s21 that runs on android 11. it won't update both manually or automatically. I have tried to use frija but frija keeps saying error. Please help me
Can I ask your opinion on recovering data. My phone was factory reset a week ago and my last backup was 1 year ago. Will rooting my phone allow a software such as disk digger or fonepaw to find all my deleted files ?
This works on the normal s21?
I have a Chinese model; SM-G9980 with dual sim, can I change its firmware to a Samsung official unlocked firmware?
I am getting a FAIL! SHA256 is invalid on my S21 SM-G991U that has a CSC of TMB. I am trying to flash SM-G991U1 XAA. Any pointers?
Thanks
Try the patched version of Odin, it's modded to allow it to flash anyway if this error comes up.
@@frozennorthproductions okay. do you have a link? Is it okay to just force it through or will it brick the device?
drive.google.com/file/d/1D2J4Py47fad1KaP3dt67JSrhujp0D_Cw
It's normal for it to fail, it's failing because you have a U variant and it's seeing a U1 firmware, you need to use the patched version to bypass this check so you can successfully convert it over to U1
Sir, im having UAE version samsung phone (galaxy a10) and is working perfectly in India right now.. Its missing call recording feature. Shall i flash the stock INDIAN rom version ? Or which Rom should I need to select in order to get call recording feature.
Read Somewhere that people are getting network failure issue after flashing, how to avoid it? Pls advice ,
Thanks in advance 🙏
So what does this mean?? I bought an S21 Ultra directly from Verizon. Am I able to change the firmware or not at all? If I'm able to, will it void warranty? I just wanna know because I want to get the one ui 4 beta when it comes out
Flashing factory firmware does not void warranty, these are official Samsung files.
@@frozennorthproductions Okay so I was trying to download it using Odin and it kept failing. Is there a reason for that?? Because I know I was supposed to download SM-G998U but it just keeps failing to install
Is the phone in the flash mode? And are the USB drivers installed? Using USB 2.0? Check the MD5 to make sure the file isn't corrupted?
We're you able to flash it and get One UI 4? I have a Verizon device as well.
Brother can we use 5G any country like i am from india and i have a s20 plus 5G but this is not working 5g here 😓
If I want to have the settings of T Mobile networks can only flash CSC and nothing else? It is that Verizon does not let you select the network mode.
I just flashed from U Verizon to Global U1, but I still have that annoying Verizon network setup.
In short, I cannot select at will between 5G or 4G.
Hi Ben, I tried to flash from G998U to G998U1 using the latest XAA firmware (G998U1UES5CVCB). It went through, but after rebooting, it's complaining illegal to update the firmware. The software version changed from ..._VZW/VZW/VZW (One UI 3.1) to VZW/VZW,VZW/VZW (One UI 4.1). But the good things are 1) bloat wares are gone; 2) U did get changed to U1; 3) phone still works. Since the CSC didn't really got changed, could the bloat wares come back the next time it updates through OTA? thanks
BTW, I did used patched Odin (Odin3 v3.14.1_3B_PatcheD) to flash.
Did you use CSC or HOME_CSC? Cause doing from 3.1 to 4.1 using HOME_CSC would likely cause this as it's trying to restore 3.1 data on 4.1 which is impossible. But as long as it's working, you're good. Bloat doesn't get installed from OTA but if any Samsung update bloat. So like, Samsung apps can be bundled in the firmware updates, so you might get Samsung bloat but there's no way to avoid that. However, you could use ADB to remove them and it won't come back after updates cause the phone will already know it has it, it's just uninstalled for the user account and won't force the install again.
@@frozennorthproductions Thanks a lot for the reply. The purpose of this was to 1) remove the Verizon bloat; 2) change CSC so I could use this phone in case I travel to Asia. So I did choose CSC, not HOME_CSC, to flash. What I guessed was that the version 5 firmware has blocked what your tried to do. If I flashed newer 3 or even older 4 firmware (in stead of the latest 5) and converted the CSC first, then either flash to the latest or let the OTA to take care of it, then the result could be different. But now I am on 5 and can't go back to earlier version. Do you have any new idea to change CSC if you're in my shoes? I watched your newer video "stop Samsung update", I hope your problem has automatically been resolved with the latest firmware.
Odin showed a successful flash, but when my s21 ultra 5g on the uk 3 network restarted, a pop-up appeared stating there was an attempt to change the firmware and it reverts back to the old firmware.
What is blocking the flashing on my phone?
Odin states everything went OK but something on/in the phone refuses the update.
I've tried both the csc files and same thing.
I've tried BTU and BTE for the UK S21 ultra and still no luck!
Any help would be appreciated. Thanks.
Hello Mr. Frozen, Do you have unlocked firmware for S22? thx
tried this method but after flashing, my carrier shit still shows "Thank you for choosing SMART".
Model : SM-G998B
Firmware Flashed : G998BXXU2AUC8/G998BOXM2AUC8/G998BXXU2AUC8
CSC : XTC
Guess it has something to do with the Knox security
You have to use XAA for SM-G998U1, the whole point is to convert your phone into an unlocked one, so you have to use the one specific firmware and nothing else.
@@frozennorthproductions not sure im following. what should i put in Frija to get the firmware version you're saying? Is it safe? Flashing a non-philippine variant to a PH distributed phone?
You search for SM-G998U1 and for CSC you type in XAA
@@frozennorthproductions would that work for a philippine variant even if that's not the model number in my box?
Model number doesn't matter, it just has to be Snapdragon. My phone is a SM-G998W and I'm running the SM-G998U1 firmware on it now. You can run the U1 firmware on any Snapdragon model, you just gotta make sure the radio bands are the same for cell coverage, that's it
Hi, Thanks a lot, I have SM-G998W and RWC/RWC/XAC/BMC in Service provider software version, I have tried with SM-G998W and SJR But sim card was inside but RWC did not changed after I did flash with SM-G998W XAC without sim, still RWC, I see it said PASS, what is the problem can be?
this is a great video but i have a few questions:
1. can i use the same method to install vanilla android from google instead of Samsung?
2. Would doing this process and installing either Samsung or straight android, does the phone retains 120 refresh rate at the highest resolution?
Android ROMs don't work like that, you would need an AOSP ROM for an S21 Snapdragon and an unlocked bootloader before you can make that work. So, the most vanilla Android ROM would ve LinageOS but because these phones have a locked bootloader, they don't make an official version. You would have to use the paid service by a developer on XDA, and then flash TWRP through ADB, and then using TWRP you can flash the unofficial Linage OS. Which WILL have tons of issues, won't have the same image processing for the cameras, and possibly be locked down to 60Hz unless there is an open source driver that supports these displays.
Running an AOSP ROM on any Samsung is hit or miss, because Samsung uses proprietary drivers for all of the hardware, so you would be better off running stock debloated, or SamPWN, which is a ROM created by the same dev that offers the unlock service on XDA
@@frozennorthproductions so when I try to flash I'm getting a message saying that it fails Sha 256. I got the right firmware BTW. Can you please help
Brother please i need help
I buy samsung galaxy s21 ultra LG cellular variant(model no: SM-G998N).problem is i live in Bangladesh. In Bangladesh this phone doesn't support any 3G network band, can I flash korean to Bangladesh or any other country ?
Once the firmware is on are you able to use the esim functionality?
I have the note 20 ultra from Canada, unlocked. Im in the US can i flash u1 firmware on it? Im not getting 5g on it
Didn’t work for me. Still seeing TMB 😢
So I have a U Model which I flashed successfully to U1 and the latest OS updates (yay!), but even though I picked XAA, the CSC is remaining CHA. Any reason for this? How can I change my CSC to XAA as my carrier isn't even Spectrum (CHA)?
Which phone do you have man? I've got a US-imported Galaxy 22 Ultra which although does work with the sim card in my country, still won't receive any OTA updates. Some reddit post says that I need to flash the U1 version. Have you been able to fix yours?
Oh and mine said XAA/XAA,XAA/ATT
I have an S21 Ultra that's locked to AT&T. Would this help with unlocking the oem unlock or anything like that? If not, what will help with that since I don't have OEM Unlock in my dev settings? (I'm currently on v4, so it might be impossible for now)
This will only flash the Samsung unlocked firmware that doesn't come with carrier bloat apps
@@frozennorthproductions that's fair. I was just hoping there was a way that didn't involve me dumping a couple hundred bucks just to get root access to my phone. But I can say that I have flashed it successfully with unlocked firmware twice. I'm happy about having almost no bloatware.
@@RIPLinkTTV Did you ever get it unlocked to use on other carriers? I have a Verizon unlocked s21 ultra but it wont work on att
@@jakedaily9527 no. Unfortunately, it's a phone that I got from a 3rd party seller and they didn't warn me about it.
@@RIPLinkTTV Same here....
When i plug the usb-c cable in the screen just shows the charging symbol and doesn't turn on (until I push the power button).
The original method is to hit power while holding both volume buttons, but it doesn't work on some phones, so you can just try that to see if it works but usually the USB trick works everything.
Hi,
I have a Samsung Z FLIP 3, it has the US Firmware and i am getting a message to contact Verizon support whenever i try to put indian sim, does flashing it to the Indian firmware will unlock the device carrier restriction? Its paid off and verizon says its unlocked but i am still getting this error
What are installing the android stock Rome and removing the Samsung rom still keep the 120 refresh rate at the highest resolution?
Great Video! Followed directions without any problems. After booting I checked the Service provider software version and it says SAOMC_SM-G998U1_OYM_TMB_12_0036 TMB/TMB,TMB/TMB. Underneath That it now has Carrier configuration version 0.0.0. I tried switching to my network in Network operators but it says unable to connect. Any help would be greatly appreciated.
which one should i use for s21 plus?, USC? idk i tried that one and it got me the t mobile version again
U1 XAA for US models
W XAC for Canadian models
Good morning Ben,
Can you please guide me through all the process to unlock my Samsung galaxy? Thank you
To SIM Unlock? Bootloader Unlock? Or Firmware Unlock? This video is is firmware unlock only. To SIM unlock you have to contact your carrier after the phone is paid in full to have it unlocked, to unlock the bootloader you need to search for Elliwigy on XDA and get in touch with their Telegram to have the bootloader unlocked.
I have a s7+ tab from verizon
Sim card of other carriers work
But low speeds on 5g...basically 3g
And no phone app for calling....(coz of digits verizon app)
I need original phone and messages app
So can I flash a SJR rom on this verizon tablet? Pls someone reply
My New S22 Ultra has no OEM unlocking in developers options. I have the Exynos 2200. Anyone know where my OEM unlocking is? So I can unlock my bootloader. Also now all the S22 android phones can not record interna audio for third party recorders. The permissions to record internal audio for third party records was removed by Google with android 12 and above.
My model is SM-G998B/DS and it keeps dropping WIFI signal 😤 i reset my phone and the router too but still the same. Plz any solutions?
I'm really not too sure, it's hard to pin point without diagnostics. Best I could say is just try it at a friend's place and see if it still disconnects. If it works fine somewhere else. It's your router. If it still drops connection, something is wrong with the phone, or possibly just a bad update. Which you would just need to install the latest firmware, factory reset, and don't restore a backup so all wifi settings are untouched and see if it's fixed.
Hey man !
I have a complicated question ...
So i bought a s21+ from china it's a us variant snapdragon 888 model n: sm g996u
The issue is that i live in Europe so i can't get ota updates ...
Is it possible for me to flash a French firmware on mine even tho in Europe samsung is using exynos not snapdragon ( i habd no compatibility issues with the mobile networks even 5g) region code on my phone is GCF/GCF,GCF/TMB.
Side question if i can't flash a French firmware can i flash any American firmware with android 13 or u have to stick to GCF firmwares.
Thank you
Hi guy , I have the same phone, how did you do ? I need to do update, please
why odin 3b?
It's patched to bypass a firmware check. I'd you go from a W or U to U1, you'll get an SHA error. So you need the patched version to bypass this to make the firmwares interchangeable between devices.
Hello. I have SM-G998N firmware and I want to change it to SM-G998B . Is it possible??? I hope you can help me. Thank you need your answer 😔
N variants are Korea models, you need to unlock the bootloader, flash TWRP. Flash a RMM disable .zip, and THEN you can flash to the B variants. Korean models are locked down so you can't switch so you gotta jump through hoops to make it work, it's easier just to sell it and buy a B model
It's not recognizing my verizon sim, do a need to pay someone to sim unlock it from xfinity ? I have trying restarting it with sim in.
Hi Ben. Im using S21 Ultra G998U with T-Mobile firmware. Which is the version i should flash to delete all the carrier bloat and activate the second imei?. Thanks
SM-G998U1 XAA
I have a s21 Ultra from panama (SM-G998B) and it's exynos.
Do you know if it's possible to switch my firmware for a canadian one? I just moved to Canada and i'm trying to use samsung pay and such but it's not letting me because it's region locked.
If possible, do i just follow your tutorial?
No, you can only use other Exynos firmware. Canada only has Snapdragon.
But with Samsung Pay, just set it up and enter only the numbers from your postal code with 0's at the end.
Like, if your postal code is A1B 2C3, you would enter 12300 and then you confirm the credit card with the prompt and it just works after that.
Hi can you do an OTA update after flashing cross firmware? Or you can only do manual updates via Odin. Because I want to flash my SM-N975U VZW changed to SM-N975U1 XAA. Thank you.
OTA still works fine, the only difference between U and U1 is the U variants get the updates from the carrier (so only a Verizon SIM will allow OTA using VZW on a U variant phone), but U1 is universal from Samsung and the updates come directly from them for any carrier.
hi i got s22 its korean if i change firmware to euro it can support esim ?
I have a Samsung s21 ultra demo if y do that work sim ??
I bought a Samsung S21 Ultra renewed, right now it uses Verizon's firmware and I want to flash it to stock Samsung to remove the bloatware from Verizon and get rid of their stuff, as well as to have updates quicker. The sim is unlocked so I'm able to use my ROGERS sim card just fine but I just wanted stock Samsung. Would this work to do that and what firmware should I use then. Also would this work for the latest One UI or is it only an old version of Android. It is the SnapDragon Version, My model is SM-G998U.
Were you able to do this?
Hey @Ben i have Canadadian S21 ultra 5G G998W and i have ATT unlimited plus plan that supports 5G but i only receive LTE+ never seen 5G in USA or CANADA, so do u think if i flash with SM-G998U1 it can work in USA at least for 5G? thanks your the best
Were you able to flash into U1 version?
@@alantsai3453 yes pretty easy
@@velelamja Thank you. So I guess flashing latest U1 firmware using Odin directly?
@@alantsai3453 correct
Canadian 5G uses Sub-6 and US 5G uses mmWave. A Canadian S21 Ultra physically doesn't have the mmWave antennas. Like, inside the phone, there's an empty space where they should be.
So, U1 phone will have 5G in US and Canada with Canadian or US carriers. But a W phone only has 5G in Canada with Canadian carriers.
Unfortunately changing the firmware won't make mmWave antennas magically grow inside your phone. I was pissed when I discovered this while changing the back of my phone to fix a cracked camera lens.
Aoa
Please tell me i am searching for days my phone is cpid approved in pakistan
It name is smg998b/ds and it is on one ui 3.1
And service provider is WWD/WWD,WWD/SMD
Can i install official firmware on it?
Does it will remove cpid
I want to know that it will work on b/ds
Because it is not u model it is exynos
Konx is installed in it
Does this still work to get from tmb sm-g996u s21 plus 5g to the canadian w firmware, i read on the internet samsung might have changed how csc works...
They did, U variants get updates from the carrier, U1 get updates from Samsung. And W do both. If a W varient CSC is XAC, you will get the updates from Samaung. If the CSC is anything else, it comes from the carrier.
But all of them auto switch now as soon as you put a SIM card in.
For me, I'm running a W variant with XAC CSC on Bell. So the firmware in settings cha ges to BMC, but the updates still directly from Samaung because it's BMC on XAC firmware. It's kind of confusing but basically you only want two firmwares. Either U1 XAA for US, or W XAC for Canada. You also need to use Patched Odin to flash it because it changes the default model firmware and official Odin will fail to flash
EDIT:
The difference between W and U1 is that W does not use mmWave 5G, only Sub6 cause Canada doesn't have mmWave. And Bixby is metric. So Bixby will read weather in Celsius, Bixby alarm reads in Celsius, and Samsung Pay can recognize Canadian Debit Visa's.
U1 has mmWave, and Bixby is Imperial. Canadian credit cards still work on Samaung Pay with U1 but not Canadian Debit Visa cards.
Hello sir, i have a s21 ultra ATT carrier unlocked phone, can i flash global rom on it, which version of android 13 base global rom can i flash?
Global phones are Exynos, you can't flash a Snapdragon phone with a Exynos firmware. You can only region swap the same SOC variants.
On my first attempt I received a FAIL SHA256 is invalid. What does this mean? It took a while to get my phone to turn back on. I thought it was dead.
You need to use Patched Odin
Do i need to unlock bootloader first??
I have s21 plus japan varient with snapdragon 888 i want to flesh usa u1 firmware is it possible because because both have sane hardware
No the japan models are different it will fail in odin while flashing
I have s21 plus 5g smg996u and it is unlocked but always show at&t logo during turn on and turn off and also there are so many carrier unlocked so I want to flesh smg966u1 firmware is possible?
Were you able to do this?
Hi sir i buy s21ultra sm-g998u.. version mobile..everything worked fine but when i check balance code its shows. Connection problem or invalid mmi code..i hope u help me. Im tied to search for my solution thanks Ben 😊
Any luck on converting an unlocked T-Mobile Note 20 Ultra from a carrier to a Samsung Unlocked firmware? Been wanting to try this for a long time now. Also, the phone in question is completely paid off and is able to use any carrier.
Just flash SM-G998U1 for XAA
@@frozennorthproductions So I can flash this firmware on my SM-N986U safely with no problems.
Correct
I have a 998U on T mobile, UICC unlocked, please advise if I flash the 998U1 XAA on it, will it remain UICC unlocked?
Yes, UICC unlock is paired to the drive, firmware changes are fine, it's essentially just a software update.
Please which firmware can i download for SM-G991U
SM-G991U1 XAA
Can we get Google play store on a Chinese variant Samsung galaxy s21 ultra 5g
Yes, but you have to flash a Google Play specific firmware for the right model phone (snapdragon or exynos)