Hello,
what bad handling did you do?
Could you give us more details with some screen captures.
Here below a backup of my system, but there is a problem, the NAND of pandora key 7 is protected to writting. You have to find a trick wich consist to connect 2 pins of the NAND for writing access => link (examples)
. I 'm looking for again !
Backup system Pandora Key 7