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Ipad A1876 No power
The PPVCC_MAIN line was shorted, drawing from USBC 0.450 MA, the U8500 was heating and the 8750 was removed and the short on the line remained. I inserted current and max voltage 3V on pin one of C81C0 until, with the thermal imaging camera, nothing strange was noticed. Once it reached 2.5V and 4.5A, C8572 started to heat up slightly. Once removed, everything was reassembled and everything works....
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Re: Acer Aspire A315 Series NB8609_PCB_MB_V4
Thank you very much
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Case study: apple A1311 firmware locked
A client brought in a IMAC A1311 that had been firmware locked and said he forgot the password.
I fixed the problem by reading the ROM and removing the part where it enabled the firmware lock and rewriting it to the MAC.
In my case this is what i did: i search for the string of text "$SVS" inside the dump, and found there were two, the first one was followed by a lot of non 0xFF bytes, the second one instead was followed by only a few non 0xFF bytes.
What i did to fix it was copy the second apperance of "$SVS" along with all the...
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