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Pogoplug V3 (POGO-P24) uBoot instalation (no replies)

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Hi!
I recently aquired for just a few € a Pogoplug V3 (POGO-P24). It had been modified in an unknown way, but I managed to use the serial console to remove some strange static IP configuration and reset the SSH password so that I now have SSH access.
I tried to boot the rootfs from 17 May 2020 but it didn't work (I didn't try to find out why because this wasn't a priority).

Then I tried to proceed to install uBoot following the great instructions provided in these forums. However, when checking the contents of proc/mtd I found the following:
/tools # cat /proc/mtd
dev:    size   erasesize  name
mtd0: 08000000 00020000 "NAND 128MiB 3,3V 8-bit"
mtd1: 00e00000 00020000 "boot"
mtd2: 07200000 00020000 "rootfs"
Should it be safe to proceed? I think I managed to backup there mtd but I cannot backup current envs (fw_printenv returns a memory allocation error and blparam is nowhere to be found).

Also, am I right to assume that bad blocks should pose no problem?
<6>[    1.670000] Scanning device for bad blocks
<4>[    1.710000] Bad eraseblock 653 at 0x0000051a0000
<4>[    1.740000] Bad eraseblock 954 at 0x000007740000
Thanks!

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