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Hello, 820-00840 board has burn mark on U3200. After U3200 replacement board still won't get 20V. Noticed that originaly U3200 was as CD3215C and i repalced it with CD3215B one. Could that be the issue?
PPBUS_G3H 0V
PP3V3_G3H 3.3V
PP3V3_UPC_XA_LDO - 3.3V
PP3V3_UPC_XB_LDO - 3.3V
SMC_USBC_INT_L...
Hello!, have macbook pro A2289 820-01987 which had liquid damage. Replaced damaged and corroded components, device gets 5V 0.10A. Device is detected in DFU mode, tried to revive it but got an error. What could i check next please?
PPBUS_G3H 12.27V
3V3_G3H_RTC 3.3V
PP3V3_G3H 3.3V
Hello!, got 820-00923 board with no signs of liquid damage. Turns on:
Trackpad active
no usb activity
no external image
no caps lock
cpu gets hot and fans stats to spin after a few minutes
CPU core voltage goes from 1V to 0.7. Tried good known bios that i found posted in this forum. Any...
Hello!, got this board 820-00923A which has short on PPVBAT_G3H_CHGR. Removed Q7040 to find that pad were burnt, but even with Q7040 removed there still was short. Later tried removing these components to solve short problem: Q7065, C7050, C7051, U7000, C7053, R7060, C7069, C7064, C7066, but not...
Hello!, i have A2289 with keyboard problem, A and D keys were not working so replaced with a new keyboard just to find out that same 2 keys still not working... Any ideas?
Hello!,
Got this 820-00840 which had damaged SSD connector and few knocked off caps around it. Replaced SSD connector, turned on and off few times to test it and it was booting all fine, so decided to test fully with connected trackpad keyboard and speakers, after putting board back to housing...
Hello!, have 820-4924A that is missing PP5VS3, mac turns on in SMC Bypass Mode, boots till half and witches off.
PP5VS3_EN 0V
SMC_ADAPTER_EN 3.45v
3V3_S5 3.3V
3V3_SUS 3.3V
S5_PWRGD from 5V GOES TO 3.3v
PM_DSW_PWRGD 3.4V
PM_BATLOW_L 0V Looks like i am using 85W magsafe 2 fake charger (have only...
Hello!,
Got liquid damaged 820-00239 board, that takes only 5v and 0.12A, looks like someone already tried to work on this board, because found out that cap C6905 had hole on pin1 - PPVIN_G3H_P3V3G3H. Would you think connecting C6905 pin 1 to C6906 pin 1 would be ok in order to keep working on...
Hello again!,
Have 820-00840 with no image/backlight, no signs of liquid damage, boards look very clean. Tried different lcd, external, no image and no backlight on both. Tried to connect mouse for USB activity check, but there is no light coming on from mouse.
Board gets 20V and 0.6A
PLT_RST_L...
Hello!,
Got 820-00165 which sensors seems to be failing and mac runs slow with fan at max speed. Board looks very clean, replaced already U5810, U5800, U5620, tried different trackpad, tried with disconnected camera cable, J9500 power board with cable. Any ideas on this?, thank you! :)
Hello there !
I have a board 820-00239 which does not seem to have a liquid damage or knocked off components. So what happens is that machine turns on, trackpad is active, i get the LCD backlight but no picture itself, keyboard is inactive. Tried on external display, still no picture. Any ideas...
Hello, got this macbook air 820-2838 motherboard, which has a green light with charger plugged in, but won't power on machine. No visible knocked off components or liquid damage. After checking power aliases found out that PP5V power rail missing from machine, not sure where to start...
Hello!, got this touchbar board 820-00239 which has question mark. Board had no signs of liquid damage, P2V7NAND was not present so inspected J9600 and one of the pins seemed to be damaged, replaced connector, P2V7NAND came up, thought sorted, but after couple of seconds smoke came up from...
Hello!, i have MB pro 820-3332-A which started firstly panicking, after i had no image so U8900 was replaced and now there is image but machine freezes on startup and i can see keyboard lights up, caps lock light works, even sound but image is stil stuckl on apple logo. When closing lid...
Hello, i have Macbook Air early 2015 13'' which recently started to freeze just after it boots and then restarts to repeat the process. Got a chance to get to the logs and take a photo, thinking it's CPU, what i could check or do? Sometimes even freezes at startup, maybe ME clean?
Hello!, have a board which is 820-4924-A and was after liquid damage. After cleaning and replacing corroded components board turns on, boots, but won't detect battery and fan at all. So far what I managed to measure:
PP3V42 - 3.42v
PPBUS-G3H with connected only battery is 11.04v
PPBUS-G3H on...