How to Fix iPhone 7 Plus No Baseband | Motherboard Repair

We have received a “No Service” iPhone 7 Plus motherboard from our customer who claimed the motherboard has No SIM error when we power on and test, we found that there’s a warning sign in the status bar, and therefore confirmed it’s caused by baseband failure. There are a lot of possibilities to create a baseband problem, in our previous video we have shared a baseband repair case, in the video, we will share more about baseband repair techniques, hope you enjoy our sharing.
Tools and Materials Used in This Video:
Microscope: bit.ly/3gLIs7n
Soldering iron: bit.ly/2XpEN7z
Solder Flux
Tweezers: bit.ly/36SxHM7
PCB cleaner
Motherboard fixture: bit.ly/3dw0cl3
Cleanroom wipes
Hot air gun: bit.ly/3du6lyb
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Questions are most welcome!
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[@akramnazeir5505]

👍👍👍👍👍👍👍👍

[@HcqsUs]

Thanks bro

[@sanjayasaliya1102]

Thanks A Lot... I'm learning lot of things

[@HcqsUs]

Thank you for your comment! We will keep making helpful guides and tutorials!

[@sajadahmad2935]

Excellent job.very informative....tnx

[@HcqsUs]

Thank you

[@JohnWilliams-zo5jf]

Great video. What product of soldering wick are you using and where can I get it

[@rodrigosalem1788]

Thank you so much.

[@bonalgiejuegos2591]

Thaanks A Lot Can You teach Me What is the measure of The different Ic Chips?

[@sharfazhameed6382]

Great video but before replacing the PMUBaseband measurements should be taken to find the faulty component.

[@ahmadsyahmi351]

hi can you do a video on how to understand mobile phone schematic?

[@franceslindberg6293]

Fantastic

[@HcqsUs]

Thank you for your comment!

[@pisethkosal]

thank

[@toseefirepair8684]

We must change RF and baseband clock?without that it will not work?

[@augustotorres3921]

Great job, how can I know if the baseband power ic has been changed?

[@HcqsUs]

You have to check the motherboard and observe whether there's any trace of repair

[@lastmakc]

What to do if one of the diodes failed the resistance test?

[@mudassariqbal6880]

Superb vedio

[@HcqsUs]

Thank you for your comment

[@raedalobaidy3645]

very nice ...
please can i know the temperature heat for ic replace and reinstall and cleaning with head gun Quick 861W ..
Thanks alot

[@HcqsUs]

IC replacement with Quick 861W: temperature420℃/wind speed60 FYI

[@travellingcooking1409]

Do you give training? What is your country name? Whats are requirements for training?

[@chinatechnical6860]

inspiring

[@HcqsUs]

Thank you for your comment!

[@AbhaySingh-pz3mn]

Great. What’s the cost of this plz let me know?

[@hambaberdosa6474]

Your use temp 350c? Air? Love to see your work.. very fast..

[@HcqsUs]

which process temperature you are asking?

[@hambaberdosa6474]

Yes...😄

[@mrsemifixit]

What temp when removing solder with wick?

[@HcqsUs]

Hi, different soldering iron has different temperature, for your information, our technician uses the iron with setting temperature at around 350℃

[@mote44]

Thank you... how to know where everything is located? I'm a beginner

[@HcqsUs]

by Schematic diagram

[@yungdollar7939]

Please I am facing the same problem and even with mine it is not activating so how do I get you to repair my iPhone 7 plus for me

[@mechyzee]

plz upload info about universal baseband on iphone 7 7p

[@HcqsUs]

Thank you for your suggestion, will do in the future:)

[@ayaanbjjmma4087]

May be Alhamdulillah

[@quratulain5400]

baseband means

[@azaddoski1]

at the 6:34 of this video, it shows that still has the baseband problem. am I right?

[@HcqsUs]

Hi, Azad, thank you for your comment, according to the video, yes, there's a baseband problem showing by the round perspective, we have checked the original video materials, and confirmed it's an edit error by our video editor who unintentionaly edited the previous troubleshooting scene into the later system restoration scene. Thank you again for your comment, we will definitely be more careful when we editing and hopefully will share more inspiring repair videos and tutorials.

[@azaddoski1]

@@HcqsUs you are welcome

[@sanjaybilla5338]

Bro can u plz repair mine..its iphone 7 ... how much it costs?

[@HcqsUs]

Hi, Sanjay, thank you very much for your comment, unfortunately, right now we are not providing repair service for personal, if you have a repair shop and need chip level repair service, you are welcome to contact us via [e-mail]. Thanks again

[@ivyjt8708]

Flux link pls?

[@HcqsUs]

hi, thanks for you information, can you leave us you contact way? our sales will contact you

[@ivyjt8708]

HCQS no
) mechanic tf350

[@HcqsUs]

@@ivyjt8708 Unfortunately, due to shipping regulation, we don't sale flux and liquid right now, we will uploads them once it's ok:) thank you for your support

[@mastertirur930]

I think this is a fake edited video because after restoring still baseband problems

[@stunnercarter4053]

These guys are idiots they program these new chip but they don't show on videos