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I realized the chip is far to small for my CH341 is there an adapter I can get to be able to use this programer or will I have to get a different programer?

I will try this thanks! Will it be a problem to use a 13" M1 MacBook Pro running the latest MacOS and Apple Configurator 2?

Sorry for the quote. I was not able to get to this for a long time, but anyway, here are the voltages. Where I write a dash it's because the voltage is bouncing from zero to that voltage and back to zero... L7810 = 0.0v - 0.84v L7812 = 0.0v - 0.82v L7809 = 0.0v - 0.75v L7815 = 0.0v - 1.1v L7816...

Oh, ok, I will do that as soon as I can, then post those results! Thanks again!

So here are all the readings for the coils around U7800 ... L7810 = 0.456 L7812 = 0.047 L7809 = 0.045 L7815 = 0.278 L7816 = 0.107 L7813 = 0.428 L7819 = 0.304 L7822 = 0.207 L7823 = 0.416 L7824 = 0.384

I will give that a try! Thanks for all the help. I'll let you know know the results!

So I guess that means I would have to remove the metal cover around that area?

Apple Configurator gives this message when trying a revive or restore... Gave up waiting for device to transition from DFU state to DFU state. [com.apple.MobileDevice.MobileRestore - OxFCA (4042)]

I have time to get back to this now. so now I see you're right and both ports are getting 19.7v and cycling from 0.05a up to 0.11a, then all over again. I have not removed the metal cover around U7800, as that seems like a big job and not sure how I would tackle that one if I need to. Any other...

Sorry that guy didn't want to wait for me to solve the problem, he just sold it for parts and moved on. I have the exact same problem with a 820-01987-A of my own. I will start a new thread for that one. Hope to hear from you on that thread. :)

I'm not sure about this MacBook. Customer brought it in and it wasn't working (not powering up). It was 19.6v and staring with low amps 0.05a, then stepping up bit by bit until 0.86a, then back down to 0.05a and doing that cycle over and over again. I was reading here where someone else has a...

I'll have to remove the shield around U7800, but I can do it today, so I'll post back when I can do that. Thanks!

3.32v @ C3208 and 0.50 diode mode 1.58v @ C3205 and 0.53 diode mode 1.58v @ C3105 and 0.53 diode mode 3.32v @ C3108 and 0.52 diode mode PPBUS_G3H = 12.33v 3V3_G3H_RTC = 3.32v

Unfortunately it's not recognized in DFU mode. Seems like I don't get 20.02v as often anymore. Strange that if I start moving the plug from one port to another, after the first couple of times, it no longer gets 20.02v on any port. Just goes to 5.04v - 5.07v and from 0.11a - 0.45a then resets...

Yes, it is the original Apple 61W that came with my 13" M1 MacBook Pro. What else could be wrong in this case?

I believe this MacBook uses a 61W power adapter. I was thinking you could be correct after reading your reply, but then after checking the website, it still says 61W for this MacBook. Could that be wrong?

Yes, the A1706 connector was the same after check the pins on the schematic. The connector on the board looks perfect as did both connectors on the flex cables I tried, but still randomly getting 20.2v on at lease on plug and then next time I try it it shows 5.02v ... Any idea why?

If I have a A1706 USB connector, will it work for testing or is it wired differently?

I do not get consistent results on all ports in either direction. Sometimes 20.02v sometimes it's 5.02v. I was thinking it was my tester, but I have confirmed the tester is fine. I also tested the ports and checked the connector. The all seem fine. The voltage on PPBUS_G3H is 12.33v with the...

Hi, I have an issue where sometimes I plug the board in, I get only 5.02v and 0.32a and other times when I move the power cord from one port to the other it will go to 20.02 v and bounce from 0.00a - 0.07a. it will do this until I pull the plug. When it shows 5.02v and 0.32a it will jump to...