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no, found some pictures in the internet but there is no resistor. It represents (R4710-4715) the board ID tryed again to solder the soc rom with your datafile, now it shows me the dfu started to revive the machine but same result, stuck on 1/3 and switches from 0200A to 0380 A 5.11V but now its...

I just see on the board there is missing R4710. is this all time so or i blow it away? I dont have another board for check this, in the schematics no advise to find

i tryed that but the same result, 5.15V 0.200A but DFU on the master not to "see"

I flashed your file into a new chip, soldered it on the board. then i had 5V and about 200mA seems to be in DFU mode but in configurater not to "see" so i flashed the backup into a another new chip and soldered this back after that same like yesterday, 0,400 in DFU 0,200 in DFU to "see" but...

thanks. I will report back after that. Is there any other step needful? or only backup the T2 Rom and flash it with your file?

in the repair wiki i found https://repair.wiki/w/A2251_2020_13%22_MacBook_Pro ...PPBUS_G3H ~12.28–12.35 V = T2 communication issue with the ISL9240. The likely cause for this is the device is stuck in DFU mode due to corrupt T2 firmware or a failed CD3217. Proceed to repair steps below for...

ening up with this (reviving)

thanks, i flashed that and soldered back still 5V and 400mA but now i can "see" it in dfu mode already. but reviving device stucks on 1/3 of the way, while 5.11V and 0.375A need realy help

found under U3060 one leg missing because of corrosion i have a programmer and the same part from a a1708 from where i can get the data to flash?

yes, but all i do i dont get into the DFU mode maybe its a DFU mode because i have 5.19V and 0A, after disconnecting the TB-Cable it start to draw 0.400A like before but in the "DFU" mode i dont see the device on the master Mac

foud burned R7900 like in repairwiki described "... If PP3V3_G3H had a short circuit, but the board stays at 5V and PP3V3_G3H is still missing, it can be due to R7900 (0 Ohm Resistor between PP3V3_G3H_RTC and U7800 PMIC, that takes PP3V3_G3H_RTC input and outputs it as PP3V3_G3H). Short...

on all 4 ports the same PPBUS_G3H 12.26V PP3V3_G3H is missing short to GND in PP3V3_G3H via thermal camera and injection of 2V found damaged C7807 i pulled it from the board, the short is also away, in diode mode i get L7660 Pin 1 0.413 was 0,0 board back in the case with accu, no...

no idea... PPDCIN_G3H is 5V, PP3V3_G3H is 3.3V PPBUS_G3H is 12.26V 400mA its still without DZ3300_CXT and DZ3303_CXT

ok, replaced but nothing changed R3109/08 has now on Pin 2 .528

found here a hint https://boards.rossmanngroup.com/threads/a2251-820-01949-a-no-power.63508/ checked R3108/09 and found under R3109 pin2 korosion. will change and report back

3 of the 4 tb ports working "normaly, but stuck on 5v 1 the front left side starting the amp meter all time again i found liquid problem under R3107 Pin 2, there was a big number in diode mode I scratched the mainboard there and found a via. so i soldered a new resistor and a jumper wire to pin...

thanks, yes both screens and machina was 2015

sorry, both screens had bad LVDS cable and the "new" cable was defective as well.

i am just working on this machine. the board is ok, the display from a known good device is working on this machine the faulty display has no backlight, with a lamp behin the logo is everything to see. is there any posibility to fix that display anyhow? i have 2 of this faulty displays with...

:-) Ah ok, yes thats it. Thanks, the Resistor looks so good but infinity resistance, replaced and work like it should be nice weekend to all