Macbook A1706. 820-00239-A doesn't see SSD questionmark folder

[PITERPENY]

Re: Macbook A1706. 820-00239-A doesn't see SSD questionmark folder

Note that reprogramming the bios can also solve no SSD/hdd issue.

Ok, I'll try to upload the firmware from xinghizao

[PITERPENY]

Re: Macbook A1706. 820-00239-A doesn't see SSD questionmark folder

After flashing the BIOS I received an error -1003F

[mon2]

Re: Macbook A1706. 820-00239-A doesn't see SSD questionmark folder

https://discussions.apple.com/thread/7500063

[PITERPENY]

Re: Macbook A1706. 820-00239-A doesn't see SSD questionmark folder

https://discussions.apple.com/thread/7500063

all this does not work even with an external drive

[PITERPENY]

Re: Macbook A1706. 820-00239-A doesn't see SSD questionmark folder

on XZZ this board has 3 firmwares
BIOS_820-00239.BIN gives error -1003f
BIOS_820-00239-09(1).bin - gives a white screen with the message your computer is turned off, try in 60 minutes
BIOS_820-00239-09-X362(1) - works well.
but this did not help solve the problem with the ssd unfortunately