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So machine works, just one port doesn't have USB communication? YES The charger works connected to that port? YES I replaced the CD3215 and exactly same issue there. What is the same redeliver chip? usb c port looks good.

i have an 820-00840 with only the upper usb port, both sides, doesn't read the data line. So, The problem persists on both port, in both connection ways? NO Do you get 5V at external USB device? No Visual inspection doesn't show anything obvious. Is this a cd3215 issue?

i have an 820-00840 with only the upper usb port, both sides, doesn't read the data line. So, The problem persists on both port, in both connection ways? NO Do you get 5V at external USB device? No Is this a cd3215 issue too?

Did fix the issue replacing CD3217. In most of the model that chip is the issue right? because I have a A1708 with that problem too.

The problem persists on both port, in both connection ways? Yes Do you get 5V at external USB device? No

hello guys, I have an 820-02020 board with a little bit of water damage. The MacBook I got was booting but without backlight. I replaced UC300 because was missing P5VS2_BST for powering the backlight driver and that issues is fixed. The MacBook is now working and charging. The only...

one side of R6481 was not well soldered. Fixed the issue. Thanks a lot

it is better but not perfect what else can I try?

it comes from the woofer because when I removed the U6400 and tested there was no buzz sound going on.

I already tried, let's download the system and as long goes on the black screen for installing, it reboots, and never continues the install. Is there a way to install from apple configurator the OS?

Yes, I tried from my personal speaker and sounds distorted. It is not a speaker issue sadly but something on the logic

I tried both and both of them fail. I also tried Monterey with usb install and also fails. basically the only OS that I can install normally is Catalina. Super strange machine.

Hello, got a MacBook A1990 from a customer the issue is thee left speaker. Basically he went to another repair store and they replaced 3 times the speaker and all of them sound distorted/buzzing. I found a little corrosion around U6400 and replaced it 2 time but I got no differences. What...

Of course, everything goes fine till the black screen with the loading that never starts loading

Hello guys I got an A2141 with a strange issue. Basically the machine can not install Ventura update. Everything works fine if I install Catalina or Big Sur. When I try to update to Ventura the machine or doesn't make the loading bar start, or fan spin for a sec at max spin and switch himself...

Hello guys, Got this 820-02020 for board repair and don't have much experience with M1 motherboard. It is stuck at 5V 0.00A and rarely moves to 0.08A with no short present on board. PPBUS_AON bouncing from 10V to 12.26V PP3v8_AON bouncing from 3.68V to 3.79V PP3v3_S2 bouncing from 2.80V to...

Hello, I have a water damaged 820-01521. After replacing U8200 and component around like R8060 - C8200 - C8201 and not the cd3215C00 I got the MacBook working. After a week I got it back, still charging on all the 4 combinations and fully working except for the data lines and hdmi from the...

Ventura installs automatically from DFU

No information available sadly. Has not been in use from a year and no water damage

Gives no issues. I have to restore the machine in DFU if I put in stand by for longer than 30 min more or less, if there battery goes low, or if I turn it off. Machine was not in use from 1 year, but inside is like new