For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
Hi
Unit stopped turning on, no visible liquid or other damage
Getting 5v then goes up to 20v and stays there forever but pulling only 0.01A
checked a few things
PPBUS_G3H 12.99v
3V3_G3H 3.39v
L6995 to ground
Pin 1 277
Pin 2 276 (is it too low?)
U7000
P_IN 20.1v
AUX_DET 5v
VDDA 12.9v...
As per title, no visible damage, no liquid residue, nothing that I could see.
Tried with an external screen via HDMI and couldn't get a picture either,
Please assist
Thank you in advance!
Hi
No light on the connector no fan spin.
Tried with known good I/O board found signs of corrosion on c0895 and the test pads around it but after cleanup the lines seem to be ok still no power
PPVRTC_G3H - 3.39V
RTC_RESET_L - 3.39v
PCH_SRTCRST_L - 3.39v
PCH_INTRUDER_L - 3.39v
PCH_INTVRMEN -...
Hi
Some liquid damage to the board, cleaned up, new battery, new 821-00614-a flex cable.
Unit asks to be plugged in, when plugged in shows its charging but never goes beyond that.
Any pointers?
Thank you in advance
Hi
Slight liquid damage, wasnt detecting the battery
Redone Q7130 and charging works, but the touchpad stopped working after login, tried new flex cable same, then noticed that Q4800 was a bit dodgy (could be my fault while redoing q7130)
Replaced Q4800 but same :/
Any pointers?
Hi,
Clients battery expanded and I replaced it. Booted, unit was waking from hibernation but was stuck, force powered it down and it wont come up since. No chime no fan.
Client had 3rd party charger. Board looks fine - cant see any cracks/burns.
Charger goes from green to orange with battery...
Hi
Another Air, liquid ingress present in one area only, blob stretching from U7600 down to U7870 and to Y1915. It was dead ( just one wire circuit working) Cleaned it up with crest and I am getting spin but no chime nor picture. Nothing really pops up, all bits look good/shiny
Please assist :)...
Hi
Strange one.
Works perfectly when booting to recovery or usb stick, but cots the power on normal boot, the moment a first bit of the progress bar gets filled.
Did smc, vram reset, new os instalation - it seems to work then. But after cooling off (next day ie) it happens again.
Checked the...
Hi
Got a no back-light unit
Backlight circuit looks good
R5117 completely burned out thou, cant attach it back as both points are also burned out.
Any tips how to attach the replacement?
Closer inspection revealed that the Q5158 also has damage on the CPU_THRMTRIP_3V3 line
Hi,
Bath submerged macbook air,
Obvious damage to the backlight circuit and both the lcd connector on the board as well as the lcd cable.
Put through crest, replaced dodgy looking bits in the backlight circuit, changed the lcd connector.
New io board and flex.
When I plug it in with only lcd...
Hi,
This one had liquid exposure towards the centre of the board. At least that's all I can see here
Issues:
Slow performance
Fan High Speed constantly
No sound via speakers nor headphones
Backlight goes on and off
I put it thru Crest cleaner as it was quite dirty
After crest sounds seems...
Hi,
Dumped the rom, but no $SVS present, I am confident that the dump is not corrupted.
Anyone has a clean one? Or knows what else I can check?
https://drive.google.com/open?id=1iTixL-8HJCAmWbtaFRysoyV4mlZ0tKCT
Hi again and Happy New Year!
The same unit that had a backlight issue. (https://boards.rossmanngroup.com/for...-liquid-damage)
Just got the password from the client. on login screen both touchpad and keyboard work perfectly
The moment I log in, they are gone.
I am hoping it is a common issue...
Hi
Got this board yesterday
D7701
C7796
C7797
L7701 all looked awful so replaced them, but still no backlight, otherwise the unit is functional
Please assist
Hi,
Received the MacBook in for non-responsive keyboard. Upon inspection, Unit was fully working with the external keyboard. It would accept keyboard shortcuts at boot but nothing once we were in os. We found quite a few places with liquid residue. Put it through cleanup in crest ultrasonic...
Hi
I have a macbook that will always chime and very rarely show questionmark folder icon but mostly just black screen with backlight
I have tried the disk in another unit and it is healthy and boots with no issues
According to the client there was no physical nor liquid damage and looking at...