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I'm working on a 820-02016-A. The machine had a liquid damage. We renewed the Audioboard with Flexcable and the Trackpad with Flexcable. The board 820-02288-A (keyboard-controller?) had also liquid signs. The logicboard had no liquid damage and looks like new. The problem ist, that even the...

The issue is fixed - i changed L4084 and L4085. Thanks for giving me the right tip. Just for information: Yes, the system did show the camera. The coils was visually looking good, also the caps. Before changing the coils i had a look with the oszilloscope (see screenshots). MIPI_DATA_F_N...

I fixed this board (liquid damage). At the final test FaceTime shows this error message (translation from german): "No Video - FaceTime couldn't get a videosignal from the connected camera. Maybe a restart can fix the problem." The ALS is working. Same behavior with two displays. The camera LED...

I got a 820-01700-A in on which the diode DB549 and the solder pad of Pin2 are missing. I have problems reconstructing the solder pad. I can't put a wire bridge anywhere because the line goes directly to UB400 Pin81. How important is this diode? Can the diode be left out?

I refurbish a 820-02020-11 which had a bad liquid damage. I'm short before to finish it. My last problem (i hope so) is the touchbar - it only shows green vertical stripes (see picture attached). Unfortunately I don't have a known good touchbar. So i tested the board with three different...

cool - thanks for your help - machine is running

I changed the original BIOS back - the SSD is running now. Is this behavior normal? Must i Install/Configure the SSD after changing the BIOS?

I had a look under U1950 - pin8 was corroded - the board boots now ! At the moment there is now a problem with the SSD - questionmark folder. That's new - the SSD was running before. Could this have something to do with the new BIOS? At the moment there is the new BIOS on board.

U1950 pin7 = 320mV and pin3 = 350mV (not stable, the value falls continuously during the measurement) CPU_VCCST_PWRGD = 1,02V CPU_VR_READY = 1,05V

PLT_RESET_L is high when the board is up on 500-600mA. When it stucks at 223mA PLT_RESET_L is low. History: Customers story: A glass of water leaked over the Macbook, I immediately tried to remove everything and switched off the Macbook, but the screen only flickered and then the Macbook could...

I'm working on a 820-00165-A that came in with water damage. After fixing this the board now behaves as follows: It starts normally when booting for the first time. After that it always gets stuck at approx. 223mA. If it has been off for a while, it starts up again normally for one boot process...

DFU-Mode revive: It runs over the 4 steps and then it takes a minute or two showing this error message ... "Gave up waiting for device to transition from DFU state to DFU state. com.apple.MobileDevice.MobileRestore - 0xFA (4005)" Diode-Mode measurements: PP1V8_SSD0 = 0,35V PP0V9_SSD0 = 0,36V...

I need help with a 820-01700-A. It came with liquid damage and one completely dead usb-c port. Three usb-c ports was working with 20v and booting into the login mask. I fixed the liquid damage areas on the board. The most liquid damage was around UB300, UB400, UB700, QB701, LB700, R8601, C9081...

Changing U9850 solved the issue - thanks. Now only the backlight is missing - i try to fix this next.

The machine is running over ext. HDMI It‘s only no picture on the int. display

I'm working on a 820-01041-A with no picture. I found liquid damage on a view areas of the logicboard and on the board of the display. The flex-connector on the display-board (TConn) and the flexcable was damaged/scorched on the left and right side. I changed the connector and the flex. The...

Apple gave the customer the diagnose that the ssd is dead - logicboard must be changed. I can't find any liquide damage. The board brings the question mark folder. The hall-sensor on the right side was gone - i put a donor part on it. R8604 looked like somebody did some work on it. so i...

Yes, red probe at ground, black probe at PPVOUT_S0_LCDBKLT (for example at C8464 Pin1) What value did you expect? I also changed now Q8401, C8460/2/3/5/6/7/8 and U2890 (had corrosion before ultrasonic). I did a reflow of J8500 and measured every pin with the continuity tester. What do you mean...

EDP_BKLT_PWM changes by pressing buttons in this range: 0.17v to 3.297v J8500 wasn't affected by liquid spill. Diode mode PPVOUT_S0_LCDBKLT with LCD connected: 1.1646v Diode mode PPVOUT_S0_LCDBKLT without LCD connected: 1.1704v

This board came with water damage arround Q8400 and no backlight. Picture is present and it boots into the login-screen. The board was in terrible condition. I think it was a refurbished board from apple. the customer promised me that he bought an refurbished macbook and there was no repair...