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Hi, i have this board liquid spill near SMC. I put the board in a ultra sonic cleaner, now i clean but can start, just fan and stop. i change the SMC, U7000 (because PPBUS_G3H is low 12,26, now 12,57). i try the board with original charger 85W. I have the all_SYS_PWGD=3,34V just few seconds and...

no the mac don't work well on battery, make kernel panic when you use it on battery. I use heaven to stress more quickly the mac for make the problem. heaven work well on other mac on battery.

i test with an another original battery of another macbook pro same year. I have a kernel panic when i run heaven on battery (the level of battery is not important) i have the problem at 75%. When i run heaven in power supply no problem. when the problem come, the screen become black and i have...

ok i understand but what can i check to look why the board make kernel panic when the level battery come under 60%.

Hi, this board receive liquid, not work. the USB C connector JB5000 is burn, i remove it and the board start and work well on the other USBC port. but if i unplug the board, the mac work well above 60% of battery. when the battery is low, I have PPBUS_G3H at 11V, is it normal? with power supply...

sorry for the long reply. i have try to change all flex and trackpad/battery, i have always the same problem. The mac is very very slow. i look the board seems clean but something it's wrong on this board.

Hi, this board has U7370 burn, PPBus is short. I remove it and change it with a donor board, PPBUS come back at 11,98V, PP5V_S0=5V the fan spin 5 second and nothing more. I have all_SYS_PWRGD at 0V PPVCCSA_S0G_R = 1,05 instead of 1,5V is it normal?

Hi, happy new year, i have a problem with this board, liquid spill on this board. the fan is at full speed after apple logon, the mac start on the system. i have already change J9500 very damage, smc is very clean. i put a screen about hw monitor, i have PECI SA at 0 or heatpipe2 & heatpipe...

Do you arrive to boot on a external good system? Do you have the cursor? if yes. you can try that in single user mode (CMD+S): /sbin/fsck -fy /sbin/mount -uaw rm /Library/Preferences/com.apple.loginwindow.plist rm /private/var/db/.AppleUpgrade reboot

ok problem solved thanks 2informaticos. i fix the checksum by medusa. the mbp work fine now.

yes i have medusa but i have the keyboard, can i change the serial without keyboard?

ok good with your file ,the mac work. but it's not clean me, no? how can i do if my file is corrupt? i upload my bios https://drive.google.com/file/d/1zZp...ew?usp=sharing thanks

hi, i need your help please. i don't know what can i do?

Ok i try it, but same problem. i clean me with the new BIOS. do you want file?

ok but if i try a new bios, i loose the ME, no?

I clean me with the medusa, nothing change. PPVCORE_S0_CPU=0,920 i resolder U8900 in the first time. SYS_PWROK_R=3,34V PLT_RESET_L=3,33V PLT_RST_BUF_L=3,34V

Hi, i have this board, no liquid very clean board. when i press power button, fan spin and nothing more. When i make smcbypass, fan goes to full speed nothing more. I check some power informations: PPBUS_G3H 12.8v SMC_ADAPTER_EN 3.38v PM_BATLOW_L 3.38v ALL_SYS_PWRGD 3.38v PM_DSW_PWRGD 3.38v...

ok thanks, i solve the problem, i think i remove by mistake C7503, when i change U7501 the first time. Now the mac work well.

hi 2informaticos, U7501 pin 23=8,59, 22=4,57, 12=3,42, 13=1,47, 29=1,126, 21=3,40

I check all rail 3V3 and 5V PP5V_S5=0,465 PP5V_S0=0,412 PP3V3_S5=0,564 PP3V3_S4=0,381 PP3V3_S3=0,465 PP3V3_S0=0,341 PP3V3_S4SW=0,486 i check trace nothing, solder and component around U7501 seems good, i compare with another board. Maybe i use bad U7501 from donor board?