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I change U5110 and R5100, sometimes the SMC_RESET_L come to 3,3V and the mac start normally. I try to remove R7100 but same, i have SMC_RESET_L=1,4V When i remove U5110 and R7100, i have fluctuant from 1,4v to 2,8V on SMC_RESET_L

ok i change the board and now i have the green led but nothing. all-sys-pwgd=0 SMC_RESET_L=0V PP3V3_S5=0 PP5V0_S5=0 SMC_ONOF_L=3,3V SMC_TPAD_RST_L= 3,4V SMC_MANUAL_RST_L=2,8V strange no? maybe it's U5110? or SMC?

i'm sorry, i forgot to switch on my power supply :(:ROFLMAO: i have PP3V42_G3H and SCL/SDA at 3,42V

no the board don't turn on. i have just the board and the magsafe board. i haven't green led, i don't connect the battery, it's easier to measure voltage on board. SCL/SDA lines at 0V, SCL/SDA=0,5V in diode mode the customer close the mac open for the night and the morning nothing, the mac...

Hi, i have this board very clean, no green led (PSU and official charger) I have PPBUS_G3H=12,27V PP3V42_G3H_REG=3,42V DCIN_ISOL_GATE = 6,8V PP18V5_DCIN_ISOL = 18,5V SYS_ONEWIRE=2,85V ??? R7012 = 68Kohm thanks

Ok thanks i change U3200, the problem is solved.

Hi, i have this board without external display. it work well on the internal display, but my customer need to work on external display. No liquid, very clean board. i have PP3V3_TBTLC = 1,1V, where is generated this power supply, on U1900? thanks

I change again Q8102 & U8110 in same time. the mac is work well now. thanks 2informaticos

hi 2informaticos, i change U8110 but still same. 13:5,116V 14:5,119V 3: 2,75V 6:0V 9:0V i try to restore the mac in dfu, stay black.

yes it's a french store, serious. i try to order. i receive it tomorow.

can i find the component ISL95870HRUZ on another (820-01041 and 820-00850) because i haven't this board? is it the good component on farnell ? thanks

U8110 13:5,116V 14:5,119V 3: 2,75V 6:0V 9:0V CPU_VCCIOSENSE_P=0V i try to find this component another board and come back for more thanks for your help

yes i replace Q8102 by donor board Q7430 00045 but no boot. i check tomorrow for more informations.

i find the mac in DFU now, is it normal? i have PPVCCIO_S0_CPU=0v, i don't know is it normal? i take a component on 820-00045 (Q7430), i think is same, is it true?

i remove Q1802 and i thing i have a short on PPVCCIO_S0_CPU (diode mode 0,036 on L8102) CPU dead?

ok thanks, Q8102 is short PPBUS to PPVCCIO_S0_CPU sorry my board is 01987 i try to find a new component on a donor board and i come back after

hi 2informaticos, thanks for your quick reply i have only L8102 with the same value (0,044) ok thanks for dfu informations

Hi, i have this board, no liquid, i try in DFU but nothing. i have input 5V 0A (usb-c tester), PPBUS=0,343V, 0,046 in diode mode PPDCIN_G3H = 5V How can i find the problem please? thanks best regards

seems a bad hole broken, near CPU, i don't waste more time. thanks

hi, I'm working on an 820-00840 board now, this board have a liquid spill. i clean it with ultrasonic and change some broken component (like C3891,C3890,C3892, U3890) pp3v3_g3h: 3.4v ppbus_g3h: 13.06v all_sys_pwrgd: 3.22v pp2v9_sysclk: 3.0v pp3v1_rtc: 3.09v pm_slp_s0_l: 3.3v GTVR_FCCM: .022v USB...