Recent content by Dozer

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    820-00165 not running only with battery

    :-) 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
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    820-00165 not running only with battery

    on Q7155 I have only battery connected 1,2,3) 8,3V 4) 1.5V 5) 8.3V DC in and akku connected 1,2,3) 8.55V 4) 8.55V 5) 8.3V the same I could measure with a good board, that is working fine with the same akku in standalone
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    820-00165 not running only with battery

    hi, I just got this device with liquid damage. was running, fan full speed and no akku to see, I cleaned it and replaced the smc after that fan was good and akku to see, communication working but still 8,22V PPBUS_G3H now still replaced U7100 and PPBUS_G3H has now 8.55V, so i2c communication...
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    iMac 27" 2020 update failed

    yes, I did both and after that i tryed to install Monterey but everytime I get the yellow screen Installing Catalina is no problem
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    iMac 27" 2020 update failed

    i coulnt fount any matching warranty programm and yes for this client its important to update this machine. is there no way?
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    iMac 27" 2020 update failed

    same yellow screen on both display if used an additional external display
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    iMac 27" 2020 update failed

    12.4 installion from usb stick same problem, after installation cames the apple and the about 25% of the loadbar, after that it is switching to the yellow screen, the cursor is possible to move i tryed with all 4 rams one by one but the same i tryed an working 12.4 installation from external...
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    iMac 27" 2020 update failed

    is this yellow screen a possible faulty RAM or ssd? the catalina is working without any problem. Maybe the 12.5 has problems? I try now to install the 12.4 from usb stick
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    iMac 27" 2020 update failed

    thanks, that is working, so far so good, but how to update the machine without problems? what would you suggest?
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    iMac 27" 2020 update failed

    Hi i got an imac 27" 2020 in with failed update (from catalina to Monterey) turn on yellow screen I started in Transfer Mode and made a backup from the data then started DFU Mode and made a reset, after that i started with alt and "R" and got Catalina installed, normaly running seems all ok I...
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    820-00840 no image/Backlight

    yes you are right nothing to loose, 2 more donar boards, thanks for help, case solved
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    820-00840 no image/Backlight

    there is all 0V Checked on the caps C8520-C8529 on CPU side and found out that C8529 pin 1 (EDP_AUXCH_C_N) has OL all the others have aound .212 I have the another same board with the same problem and checked this and same, C8529 CPU side OL The "good" board has on all caps the same value in...
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    820-00840 no image/Backlight

    Hi, got this board, looks clean no signs of liquid. no image, no backlight external Display shows image have connected a tested new display, with another mainboard, same flexcable image and backlight is ok. tested already this things: DP_INT_HPD pulse to 3.3V BKLT_EN_R 0V no pulse...
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    iMac pro 2018 DFU reset help needed

    I tryed now installing Mojave on Host the target is imac pro 2018 mojave i tryed the host with a a1706 2017 installed mojave 10.14 got now error 10 this is discribed in mr.macintosh as osx not matching ..." BridgeOS Restore Error 10 – The BridgeOS Restore failed! This is most likely...
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    iMac pro 2018 DFU reset help needed

    I still have the problem with the imac pro 2018 i can turn in dfu mode without problems but with the configurator happens the error 06 the last osx i installed was Mojave. is it needfull on the host computer to run mojave as well ? the target is imac pro 2018 mojave i tryed the host with a...
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