Tab allwinner fel-sdboot restore img

[hlfo...@fn.de]

Hallo,

I have an older tab (ga10h A23).

There is fel-sdboot.sunxi installed on the SD card

and the tab seems to boot from it.

$ lsusb
Bus 006 Device 003: ID 1f3a:efe8 Onda (unverified) V972 tablet in flashing mode

i:/tmp/sunxi-tools-master# /usr/local/bin/sunxi-fel ver
AWUSBFEX soc=00001650(A23) 00000001 ver=0001 44 08 scratchpad=00007e00 00000000 00000000

i:/tmp/sunxi-tools-master# /usr/local/bin/sunxi-fel spiflash-info
ERROR: Allwinner USB FEL device not found!

Whats going wrong?

Is it possible to list partitions on the internal flash with sunxi-fel (or another tool)?
and write a file on a partition?

regards
Andre

bg:
I tried to replace the recovery partition on the tab (trwp).
This going wrong.
If turned on then the logo is displayed. After that the display is black.
can't switch to recovery/boot-mode.
Now I am looking for a way to restore the original.
sunxi-fel seems a way.

The partition was:
# ls -l /dev/block/by-name/
lrwxrwxrwx root     root              2023-03-27 08:29 UDISK -> /dev/block/nandj
lrwxrwxrwx root     root              2023-03-27 08:29 boot -> /dev/block/nandc
lrwxrwxrwx root     root              2023-03-27 08:29 boot-resource -> /dev/block/nanda
lrwxrwxrwx root     root              2023-03-27 08:29 cache -> /dev/block/nandh
lrwxrwxrwx root     root              2023-03-27 08:29 data -> /dev/block/nande
lrwxrwxrwx root     root              2023-03-27 08:29 databk -> /dev/block/nandi
lrwxrwxrwx root     root              2023-03-27 08:29 env -> /dev/block/nandb
lrwxrwxrwx root     root              2023-03-27 08:29 misc -> /dev/block/nandf
lrwxrwxrwx root     root              2023-03-27 08:29 recovery -> /dev/block/nandg
lrwxrwxrwx root     root              2023-03-27 08:29 system -> /dev/block/nandd