3 days in, slow/stuck or no boot.
09-04-2024, 12:23 PM
Yes the emmc switch, on is.... disable= on = emmc off ,, This is indeed backwards to normal understanding
occasionally the sd sodket or board is bad, at a guess 1 per 10K
Is it possible that the SPI did not get completely erased?
Maybe I misunderstand, I thought you said the voltage select problem was for emmc
with a pmOS usb boot, but now you say pmOS worked on emmc?
To erase uboot, just write /dev/zero to 1st 16M, maybe save mbr first if it would be usefull, as so
dd if=/dev/zero of=/dev/something bs=1M count=16 ..... all this as root,,,, to install image (most are .xz)
xzcat image |dd of=/dev/something bs=1M ....but VERY sure that you have right output file, of=
SPI is different, idbloader starts at 0 rather than 64 sectors as on sd, emmc
occasionally the sd sodket or board is bad, at a guess 1 per 10K
Is it possible that the SPI did not get completely erased?
Maybe I misunderstand, I thought you said the voltage select problem was for emmc
with a pmOS usb boot, but now you say pmOS worked on emmc?
To erase uboot, just write /dev/zero to 1st 16M, maybe save mbr first if it would be usefull, as so
dd if=/dev/zero of=/dev/something bs=1M count=16 ..... all this as root,,,, to install image (most are .xz)
xzcat image |dd of=/dev/something bs=1M ....but VERY sure that you have right output file, of=
SPI is different, idbloader starts at 0 rather than 64 sectors as on sd, emmc