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.
Hello again.
I just cloned a customer's iMac internal hard disk onto a 2.5" SSD connected via a USBC adapter.
That completed successfully.
I then removed the AC power, removed the two connectors for the screen, took out the screen, and then replaced the hard disk.
Prior to reassembling it, I...
Hello.
I have a customers Macbook Pro A2141 that appears dead, no fans or display but trackpad does click.
Customer reported that it worked fine last use, and that it hasn't been dropped.
I removed the back cover, and, apart from dust, no other sign of any liquid ingress or other issues.
It...
Hi all.
We replaced a display assembly with an aftermarket screen.
The customer bought it back a few weeks later stating that the hinges are too tight.
I checked the system booted, and confirmed the faulty hinges, then shut it down, and removed the assembly and replaced with another aftermarket...
Hello again.
Working on a 2020 Macbook Pro.
Model A2251
Board model: 820-01949-A
It has no display on the internal screen or on an external screen.
I tried with another new screen as well.
Customer originally reported when they bought it in that it was slow to start up, and was shutting down...
As per the title, does the store sell flux?
A search on the store for flux returns 5 items, solder braid, etc, but no actual flux?
Is it hidden away somewhere?
If the store doesn't stock it, can anyone recommend a decent Brand, and good source for them?
I'm in Tasmania, Australia, but happy to...
Hi all.
Looking at a 820-01958 board that was extensively water damaged.
After cleaning, I'm only getting 5v on both USBC ports.
With the AC adaptor connected to the primary (REAR) USBC port:
PP20V_USBC_T_VBUS 0.00v
PP20V_USBC_X_VBUS 5.25v
However,
With the AC adaptor connected to the...
Hi all.
I have an 820-01521 board with no signs of life.
No obvious signs of any water, or other, damage.
No sign of heat.
Only has 5v on either USBC port.
Tried with another USBC port cable, and another known good genuine AC adapter.
F7000 0.02v
PPBUS_G3H 0.56v
R7020 5.12v on pins 1 - 4...
Hi all.
Liquid damaged 820-00165-A
Minor corrosion on top side of board around U6100 - U1900 & U7701.
On the bottom, only a tiny bit near Q7155
Cleaned affected areas.
Get green then amber LED on magsafe2 adapter.
Tested with spare known good adapter
No fan spin.
I've tried to manually start...
Hi all.
I'm working on a 820-01598 that had water damage.
It originally came in not turning on.
The only signs of corrosion was on the bottom side of the board.
There was a small amount of corrosion on the battery PCB,
On the logic board, there was a small amount of corrosion near F7000.
I'll...
Hi all.
I have an A1707 2016 macbook that is not turning on, either via battery or via genuine known good AC adapter.
No signs of liquid damage.
Missing PPBUS_G3H.
Suspecting U7000, but thought I'd get advice first.
Here's a list of what we've checked.
PPDCIN_G3H = 5.27v
PPBUS_G3H = 0.23v...
Hi all.
I'm trying to recover some photos from a customer's iPod touch 4.
When it was bought in, it was in a Apple logo - white screen - reboot loop.
I can get it into recovery mode, and I have tried to flash it from there using 3uTools, however the flash fails with "Error: Unable to restore...
Hi again.
I get 20 volts to F3001 when connected to the outer USBC port on J3300.
The trackpad clicks, so the unit is turning on, but there is no display.
The power button will turn the unit on and off - i.e. the clicking will stop, or start, again.
There is no signs of any liquid ingress to...
Hi all.
I have a dead 820-00269 from an A1706.
Missing PPBUS_G3H.
I get 20v on F3001, however no voltage on F8400.
I removed F8400, and injected 1 volts into pin 1 and found U7960 getting very hot.
I removed that and there still appears to a direct short (zero ohms) to ground on the pads of...
Hello again.
I have a 820-00239 that appears dead - no life, no fans.
No USB activity at all.
No signs of any liquid anywhere on either size of the board.
Tried with known good AC adaptor with just the bare board.
I don't seem to get 20v anywhere - the most I get is 5.7 volts.
I'm also...
Hi again all.
Short circuit to ground on PPVRTC_G3H.
I suspect the CPU is dead, but thought I'd check before writing it off.
820-3437
Magsafe light OK, no fan, no chime or anything else.
No signs of liquid ingress or other damage.
I've removed all caps on PPVRTC_G3H, short to ground (0.08Ω)...
Hi again.
I have an 820-00928-A that does not detect the internal SSD.
This unit was apparently water damaged.
Another technician cleaned the board, unfortunately, so I cannot see where the liquid got onto the board.
There are no signs of corrosion anywhere.
Booting from a Monterey boot disk...
Hi all.
I have a water damaged 820-00165-A that has no display, either on the internal panel, or on an external screen.
There is zero change on the screen when power is connected.
I cannot see an Apple logo or folder question mark while shining a light from the back.
I have tried another...
Hi all.
An interesting one.
We have an A2338, running Monteray, that has no back light from the moment you turn it on, until you have logged in with your password, when it will turn on, and stay on.
i.e. the Apple logo doesn't have a back light at all, or the login screen.
We have tried two...
Hi all.
First, I'm not familiar with working on this model board.
No video on internal panel or externally on any USB C port with a USB-HDMI adaptor that I've had working in other Macbooks.
No fans, no chime.
No signs of any liquid damage on either side of board.
Power rails seem good, CPU...
Hi all.
I have a dead 820-00165-A logic board, only an green then orange light, with everything including the battery disconnected.
When it arrived, with those symptoms, I found U1900 was getting to hot to touch.
Checking power to U1900,
PP3V42_G3H was correct at 3.40 volts
However, PP3V3_S5...