Search results

on ebay seller dfu never completed success, i have an error on dfu

hello i have buy 2x mainboard new (never open) model 820-02188-A When i start i have toothed wheel and after blue screen i have put in duf and start recovery after i have apple logo but an error when i restore it i have error message and never work have original box 639-11151 and mainboard...

overnight no visible liquid with apple diag we have CNW0020 error

hello i have mainboard 820-02841 without wireless logo we have test restore os same we have restore in dfu same sometimes i have logo but when we click no responding no short on line PP3V8_AON_WLBT / PP1V8_S2

hello please do you have the firmware for programmed efi chip thanks

hello, i have mainboard 820-01987 with no image no start i have check and no liquid damage, machine enter in DFU mode correctly. I have restore and same I have 20V and 0.6A without battery With thermal cam, see U8500 very hot. I have remove and check pins. On pin 1 and 3 i have short. I inject...

do you have process for imac? Because in your link don't write for imac

i have mainboard with 5v with thermal camera i have D6902 very hot no short on each pin i have replace it and U6903 but same

do you have schematic or solution?

i have backlight dead and composant burn no schematic and no see on mainboard the number

All works good after dfu restore

This is what I wanted to do but first I wanted your opinion

hello i have mainboard 820-020210 with this problem Wifi not detect in system but in recovery working and no work randomly but i have see too in information don't see the serial number you have idea?

Have test in case but not enter in dfu What is external switch method please?

all LDOs are good

Ok i check tomorrow LDOs For information i have test to replace UF400 and UF500 and same

"I never understood why people like to check that coil." because lot of times you say test big coils No history available. Dead directly This machine not recognized in DFU mode

820-02016-07

hello, Motherboard stuck to 5V and 0.020A i have push to 0.09A maximum PPVBUS USBC1 5v PPBUS_AON 12.14V PP3V8AON_PH1/PH2/PH3 all 3.747V ON L5230, the voltage varies between 0.6V and 1.4V but never stable

do you have schematic for this mainboard?