Recent content by danezul123

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    820-3115B 1 till 9 keys not working.

    I've find the issue, pin 27 on the keyboard connector, wasn't making contact property, i've replace the connector and the board is working fine now. thank you.
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    820-2915-B working slow

    I've tried everything. most likely gpu issues.issues the MacBook it's usable though, just a bit slow on application that requires gpu computing. thank you.
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    820-2850-B freezes shortly after boot.

    I will try that. Thank you.
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    820-2850-B freezes shortly after boot.

    This board freezes shortly after boot (the globe stops spinning) I've try replacing C9560 and nothing. I've try different rams. Any suggestions?
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    820-2915-B working slow

    This board apparently works fine, a bit slow. I've run geekbench 4 and on the CPU scores normal. On the GPU on the other hand scores very poorly, under 2000. At the software installation took longer time than normal. Also i've run ASD on it, and no issues find. Any suggestions?
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    820-3115B 1 till 9 keys not working.

    Very strange problem i have with this board. Only keys from 1 till 9 including are not working, rest of them are working fine. I've try different keyboard, the connector looks good, i even replaced the keyboard IC, nothing. Don't know what to try next. Any suggestions?
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    820-2915-B no image, no chime after flashing bios.

    Thank you! I close this topic now. I have several other questions, i will open new topics.
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    820-2915-B no image, no chime after flashing bios.

    Sorry, what do you mean by "upload your passworded BIOS to unlock it" ?
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    820-2915-B no image, no chime after flashing bios.

    I understand. I have also 2850 who freezes 10-20 second after trying to install OS. C9560 could be the problem? Or could be something else? Probably this issue has been discussed many times before but i couldn't do a search, not sure how you can search on this forum. Also can you help me with a...
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    820-2915-B no image, no chime after flashing bios.

    I finally took the time to look over this board again. I swap the bios chip from the good board to the bad board. Surprise, now the board it's working again but unfortunately there is indeed problems with GPU on this board. After few minutes image breaks and restats. try to replace c9560, no...
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    820-2915-B no image, no chime after flashing bios.

    I will do more investigation this weekend. I do this like a hobby in my free time. I'm not familiar with "Tiresias killer". Sorry! Thanks for the help so far!
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    820-2915-B no image, no chime after flashing bios.

    Yes, i've use a clamp cable. I'm sure i didn't connect it wrong, i've manage to read the chip first attempted. Now i'm afraid to flash the bin file from the "bad" board, to the good board, i could have two donor boards. ? This method should've work, i didn't do anything wrong, right?
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    820-2915-B no image, no chime after flashing bios.

    Hello everyone, i''m Daniel, new to this forum although i've been watching Louis videos on YouTube for a while now. I have this 820-2915-b wich had EFI password. Trying to get rid of this password i've copy bios information from a working board (same number) and write it on the "bad" board...
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