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I removed a CPU from a donor board …. Sadly I lost one cap/resistor on the back of the CPU. Any idea what’s the value of it?

Ok, thanks for your help!

Hi, I have here an A1989 with no image/no backlight. Water damage: -> water_damage.png Note: - External display shows image - so the internal GPU is working fine. - " EDP_INT_AUX_N " = 0.007 (diode mode) / 3.4ohms to ground - Is the CPU bad? - Heat shield on LCD getting warm (IMG_0615.jpg) -...

Hi Morten, thanks for your reply! :) Sadly the topcase got already replaced by apple, the issue is still there. No important data on it, so I have a new donor board. :)

F*ck that T2 they are so fragile ….

LCD, TouchBar and TouchID (board) disconnected but it won’t show up anything on the external display. Now I have the TouchBar and TouchID (board) disconnected but it’s the same behavior while restoring via “Internet Recovery” - Result Error -2003F.

Yeah internet recovery with a progress bar which ends with an error. (No top menu bar)

How? I can't get into recovery mode?

Tried it but still won't show up in "Disk Utility" or via command "sudo diskutil list". Yeah DFU restore is working fine :/ After the restore I get a "question mark" symbol, which is normal. When I connect an USB drive (with macOS installer on it, used the tutorial from apple) why does it go...

Picture "4.jpg" is the U3701 (WiFi/BT Chip). Yeah I can enable the "Target Disk mode" (via "T") but the disk wont show up on my second mac (MacBook Pro M1). Already checked in hard disk utility only the internal SSD of the working mac is available. Note: Connected via OEM apple cable (not THB).

Hi, I have here an A2159 (820-01598) which was water damaged. (I took pictures before cleaning - please check the attachments) After removing/replacing the broken stuff (caps, 94AGTJIELC180) and cleaning the corrotion the device booted fine .... it also worked for 2 whole days. But after...

When turning on the logicboard with usb-c connector and display connected it now stays on "19.6V / 0.33-35A" (T2 and CPU are getting warm).

Did you check all them with red probe on ground? - Yes.

Yeah sorry, I have updated my reply. Also, "0V" means short in diode mode; are you sure is not OL instead? - OL not 0V.

I have now checked the following pads under the U6400. (diode mode) - PP1V8_S0_SPKKRAMP_AVDD = 0.328 - SPKRAMP_L_AREG = OL - SPKRAMP_L_DREG = OL - I2S_SPKRAMP_L_R2D = 0.487 - I2S_SPKRAMP_L_BCLK = 0.488 - I2S_SPKRAMP_L_D2R_R = 0.499 - I2S_SPKRAMP_L_LRCLK_R = 0.488 - SPKRAMP_INT_L = 0.466 -...

U2890 was also corroded.

Turn on "verbose" mode so you can exactly see what is causing the slow OS boot. 1. Turn off mac. 2. Turn on mac and hold "CMD + V" 3. Boot Command Line should appear

Sry forgot about it. Should I remove U6400 and check for shorts or test without it? Btw which signals are used by the T2?

In that area.

No can’t see anything.