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820-00609 is the code. all diagnostic LEDS are on. no SATA Drive, only blade ssd

Hey guys, having a 820-01827-01 board here. no liquid / corrosion. Had 5V on the charger, changed a faulty CD3215, now i got 20V, 1A draw. Machine is booting. Gives me a chime, Touch-Bar is turning on. But no internal or external image. Possible U9850 damage? Even with no external image? Or...

hey guys, having this board here. liquid damage (heavy). working with 02098 schematic. had backlight problem. replaced backlight chip. backlight is there. corrosion in the sound area. display is also turning off and on. not stable picture. trackpad is not clicking. what to do?

just like that. need to open the machine for the mlb code....

Hey guys, whats going on with this machine? Can do only SMC-RESET. Only Apple Logo and chime. Option Key not working, no recovery partition, no hardware-test, nothing is working. Cant open bootpicker via option-key. No progress bar. Not booting at all. No safe mode possible...

machine is back to life and booting up. thank y

no. boad is right now untouched. edit: should i change it?

when i plug into the not working port, when usbc meter is not showing anything, i get 3.2V on USB1_CC2 edit: when i plug into the not working port with amp meter showing something, pp5v_S2 is 3.3v. area getting hot is pp5v_s2

tried another flex. same issue. CC1/2 diode mode readings same. i noticed when i plug into the working port, the chip is getting around 40degrees celsius. (left area) when i plug into the not function port, the chip is getting around 60degrees celsius. (left area) is it the chip?

they are the same. 0.595

update: PPBUS_AON 1.5V - 1V not stable when i plug with usb-c-meter not displaying anything.

Hey guys, got something strange here. Customer told me, he changed the screen, then not working anymore?! Board looks fine / no visible damage. One CD3217 taking aroung 0,2A, should be working. When i plug into the other port, 0,05A. When i connect to the same port, but flipped board, the...

for the machine game over?

chimes every reboot...

completely, backlight is turning on

revive did go trough, but again...looping...

yes, dfu is detected. running revive now.

figured it out. louis helped me.. and i forgot to put the 0 ohm resistor...

hey guys, machine came in like this (see photo). ppbus around 1v. rest of the board looking good. replaced all affected components, replaced u7100 -> now ppbus is 4v not stable chgr a/l gate is 0.02v? chgr_ugate is 5v dcin is good / 16v. what to do?

removed CMOS cell. nothing. no schematic for the board. You have something?