2 MacBook Firmware Password set - reset not working
I just received a Macbook Pro from eBay (article saying its a 2011 model, but according to serial, its a mid 2012 model - definetely it's a A1278 though), which, after booting only shows the blinking folder symbol.
First thing I wanted to try was accessing the disk tool - however, I was greeted with a password field, which seems to be a set firmware password. The seller unfortunately can't remember to have set such a password, so the password is unknown.
I found various articles, describing that for those models, changing the RAM configuration and doing a PRAM reset after should work (sometimes they say to remove the battery as well). I tried every way, however, I don't get to the point, where a PRAM reset would work. No matter how I boot and when I press the keys (cmd, alt, P, R), I don't get any signs, that the PRAM reset would be recognized. Is this blocked by the firmware password as well? Any way to do it anyway?
Or is this MacBook just lost?
Edit: After I was able to remove the firmware password by changing the EEPROM on the EFI Chip, I now have a problem with the screen - once the FindMyDevice screen shows up, the screen looks like that. Before (entering recovery, entering WiFi details), it all looks just fine. Have I broke the display connector, when reassembling? Or could this be another issue?
Bu iyi bir soru mu?
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Quick question. Do you happen to have another Mac available you could connect to this one, and boot it in Target Mode?
molochhamovis tarafından
@molochhamo21061 Not yet, but working on getting another one... What could I do with it in that case?
nameless tarafından
@nameless7069 - I’m suspecting @molochhamovis is thinking you can remotely alter things. The newer T2 and M Series allows us to enter DFU mode via an interconnected system, that’s not possible here. The other possibility is accessing the data remotely via Target Disk Mode, again without the firmware password the system is not at a state for that to work.
Dan tarafından