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Thanks for this, I was going to throw it in the bin as I couldn't get the signal to center. I'll give this a go.

Thank you so much for explanations. Now it's more of an instrument than a toy in my hands :)

These videos are a real must for clueless beginners owning this oscilloscope. Thank you for your work.

Don't give up

Please keep on making videos dont stop

Thank you for this oscilloscope series without this i will not be able to understand it so deeply.

Still, after following this video, the power and probe cutouts in my case are not perfectly aligned with the board. All in all, it works, but not perfectly.

Thank you!

What is the size or specification of screw driver? I'm trying to use mine and it's too big

I buyed 3 of them shits they burned after 5 turn on;s using 8v battery what a crappy board .. why Is it? lets watch the video now.

I'm so happy that I've vound this video! I knew that on screen information existed but instruction didn't tell anything about it. Thanks to you I can now measure frequency of signal on DS0138.

I updated mine today. I could not backup the original firmware as it kept asking me to open folder. After uploading hte update version, I think the settings were wrong to back up as it was *bin and not hex setting. It had taken me some time to get it to update as when on the *bin setting, it wouldnt recognise the hex file. But it is all done now. I just wish you described everything when showing what you did and clicked on. Some people do, but this was the only video I could find to update the DSO138. Plus I tried to download the DESO138 Flash loader but it wouldnt start up. I think it was because I have windows 11. I had to type Flash Loader Download to get one that worked. But I finally updated and got it installed and up to the latest original firmware.

Hi can the oscilloscope detect plant signals

I'm just a beginner. I want to learn to use oscilloscope. What should I test this oscilloscope with? I can't afford to buy expensive electronic components.

I have made the firmware upgrade but I had to return to 042 version because using the 061 version causes bad readings on Vpp: instead of 3.7V, after upgrade it shows under 1V.

Thank you, I followed your instructions and they explained everything in clear detail.

Good teaching sir. Am learning a alot of things about dso 138 from your videos only. Now i have doubt, can i use the multimeter prob instead of crocodile clip in bmc connector? And can i use the full length of multimeter prob(1meter length)? Thank you.

That’s exactly how I assembled the scope with seeing your or any other instructions. Thank you.

A huge thanks man, I was almost going to return it

Very helpful. Thank you for your hard working

Thanks so much for a crystal clear explanation.

If I hadn't gone to upgrade the firmware of my new "DSO 138 Oscilloscope" (as I do with all my electronics), I wouldn't have found out I was sold a COUNTERFEIT version of the product which was an exact match to the fake model you displayed in this video. Even though I have already built the kit, I immediately made a return to Amazon stating the website description was incorrect. The seller was selling these as "DSO 138 Oscilloscope Kit" which it is not. Thankfully I am well within the 30 day return window and Amazon processed the return with no problems. And thank you for including the response from FNIRSI, that was a perfect example of politician double-speak which was devoid of any informational value whatsoever. I had been considering purchasing a bench top Oscilloscope that included some FNIRSI models, but after seeing their handling of this issue, I will not consider ever buying any of their products. I think you are performing a valuable service to people who can be and are fooled by unscrupulous vendors selling sub-standard knockoff products. The JYE Tech product may not be the most up-to-date, sophisticated, pocket Oscilloscope; however, it is a great, low-cost and usable instrument for anyone wanting to further their electronics hobby. In any cases, we should all do what we can to identify and boycott counterfeit goods.

Thank you very much!

Hello mine is very confusing. It has all the features of the original one but no jye tech in the ui. It has the same looking ui, even has dso138 written on top, but no Jye logo. And the light is working

What a waste of time this video is.

10min. of blah blah blah

Hello, the chip of my dso138 oscilloscope is faulty. I ordered a new one. Can I program it from scratch with this program after assembly? thanks

man if i have not original one what i should do? its look like its write protected?

Thanks! :)

my not working no line why its av- is +8 volts it should be -5volt

if we use battery is there any option to on and off without disconnecting battery?

period 1 second, the frequency 1 hz

using a cheap boost converter and a 3.7V Li-Ion battery gives me only 3mV 16kHz square wave noise. I can live with that and enjoy not producing unneccessary waste.

I put my DSO 138 Oscilloscope a long time ago but I found your channel and decided to learn the ins and outs of the device. One thing I realize is that my square function pin is soldered without the 10k resistor. Would you post a picture of how to do it properly? Shouldn't just be easier to 3D print a case? I think I can do something like that.

Thanks you very much. Now i understand after this series.

thank you

9 times 0.2 is 1.8, not 18

Super

where is firmwear

Mine is FW 113-13801-070. I assembled it 3yrs ago, did it time travel?

Excellent explaining video. Congrats!

you are a chad i was almost throw out my dso

Thanks for your clear video, I've did everithing as you explain without problems, my PC recognice the adaptor wich is runing in the COM3, my DSO 138 is an original product, I've made the JP1 and JP2 bridges, the screen is blank, in the flash loader demostrator v2.0.0 I selected the port and the baud rate but when try the next step, a dialog box appears telling "No response from the target, the Boot loader can not be started. Please verify the boot mode configuration and the flash protection status. Reset your device then try again" I've checked all the connections and the procedure several times without result, please can you help me with some advice about it? Thanks very much in advance

Hello sar dso 138

Rechargeable batteries would be great

What JYE Tech need to do is move on. There are 100+ fakes of this. However it is way behind the times. There are mini-scopes that blow yours out of the water at the same price. Pushing this old design will get you nowhere. Your valid competition (Fnirsi, ZEEWEII, etc..) are way ahead of you. If you don't move on you will be gone. BTW, your blinking diode for trigger was annoying. Very distracting .. so I cut it off. I can see from the waveform on the screen if the scope is triggering. I don't need an overly bright led flasihng in my eyes the whole time.

awesome , I was in badly in need of this guidance. Thanks a lot , it worked! :)

Awesome, I was stuck here.let me try and get back.

Greeting! If I may, I hope do not disturbe , I would suggest making an ECG graphics monitor with an AD8232 ECG sensor module adapted to DSO 138 OScope. My best regards !

It's an interesting topic, but it's also a lesson in how to make a successful presentation. Congratulations !