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While checking the traces, I went ahead and removed U3100 CD3215 chip and saw that the 2 pads under the chip were missing, all the others were intact. The schematic says they are the following: TP_UPC_XA_SWD_DATA Pin 46 TP_UPC_XA_SWD_CLK Pin 55 According to my schematic those lines do not go...

Before I started to check the coils, I went ahead and put some good flux around both CD3215 chips and heated enough to get get rid of any possible liquid under the chips because I did not know how bad this was damaged before I got it. Now after doing that I lost the 20v at the USB meter and now...

Yes, checked as best as I could, visually looks good. I seen some other posts about no cap light and no usb function, I have neither. When I first plug in thumb drive the light will come on for 2 seconds solid and then never blinks or stays lit after that. Tried both ports still no usb...

Ok thanks.

Thanks, the only other working macbook I have on hand right now is a 2016 12" Retina, do you know if that will work for DFU restore or do I need another macbook air 2018-2019? I'm picking up today a previously recommend apple thunderbolt 3 cord from Best Buy. Thanks

Sorry, forgot to mention no shorts on any of those pins. Ok, found out after looking more closely and comparing my donor board that I robbed the U7650 from, that somebody has been here before. About 8 caps were either out of place or the wrong ones. So after transferring everything over from...

Thanks pins: 23 - 12.3v 12 - cycles between 0v-2v 13 - cycles between 0v - 2v 22 - 3.3v 29 - cycles between 3.2v - 1.2v 21- cycles between 2.2v - 0v 4 - cycles between 0v - .04v Hope that helps. Thanks

Hello all, I got a 2018 Macbook air that had some corrosion around U7650. Replaced U7650 and cleaned with ultrasonic cleaner and now it has 20v and .12a at the charge ports but still no boot. Below are the voltages I still do not have: PP5V_G3S 0v - applied 5v on this line and the fan goes fast...

That's what I needed to know. Thanks again!

Hello all. My local Mac repair place told me they did a hardware check on this unit and said the actual fingerprint button failed and would need to be replaced. Is this something I can do without taking it to them? Everything else works on this unit but that. They told me that they would program...

Awesome feedback!! I will try both. Does anybody know where to purchase the connector if it is available? Or are you just removing the connector from donor boards? Thanks

Got this unit with a burned up J6100 connector. Has anyone had any luck replacing this connector? Any pointers on replacing (heat temp, etc)? Are the connectors available yet anywhere to purchase? I have a feeling this is going to be a normal issue with water damage on these. This is the 2nd one...

Can someone that has access to a late 2018 MacBook Air use the string below in the terminal window and let me know what part number comes up please. ioreg -lw0 | grep IODisplayEDID | sed "/[^<]*</s///" | xxd -p -r | strings -6 I'm trying to see if there is a way of telling the difference...

Thanks! Yea I found out about that booting from the usb thing. What a joke! Anyway as far as the microphone that was repaired when I replaced the audio board. The keyboard back light is the last issue I'm dealing with. I found out that the LCD assembly I purchased from Ebay to fix my cracked...

Thanks for your help, but still no keyboard backlight. I did not mention earlier that on this unit I replaced a cracked LCD with another from Ebay. I did not think the LCD would have anything to do with the keyboard backlight. But after reading some other blogs the past few days, there is a...

Thanks for the help. Can you give me the place on the web that had that version available. I double checked the Apple site and could not find Mojave 10.14.0 Thanks

Forgot to add something else with this unit I noticed, I can never get the little LED light to light up on the logic board D6959. I get 3.0v at point "A" with battery plugged in and the charger plugged in. If I use my DVOM in diode test mode it will light only in one direction with the probes...

Fixed one issue, replaced audio board with another known good board and both speakers in the chassis are working. Also the microphone did not work either with the other board, forgot to mention that earlier. However, on the no keyboard backlight issue, I still cannot figure it out. I took the...

Thanks for the fast response. On this model for the no keyboard back light I also noticed and have seen some other random reports that in the keyboard settings, there is nothing about changing the back light on the keyboard for low light?? It is totally missing. Like the OS doesn't see the...

Hello all, is there any schematics out there for sale for just the track pads and audio boards? I have the schematic for the main logic board but do not see anything in that schematic that shows the components on the trackpad and audio board. Also as a side note, this is my first attempt to...