Help for broken VF2? "Error inserting "<>" variable, errno=1"

My original post says I have flashed with xmodem, and my earlier comments have the logs from the session, so yes I know about doing the reflashing that way.

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So from my understanding with the soemwhat working uboot you have at the moment you can read from the SD card?

Then there could be a way to load a memtest app from the SD card, load it into some memory like the LIM mzs is talking about and just jump to that memory and the memtest app would them start to run. The question is, I am not aware of such an app existing.

Oh wait just did a quick googling and it gave me that:

GitHub - atrosinenko/memtest86-plus-riscv: Port of original MemTest86+ v5.1 to other architectures (RISC-V for now)

I haven’t tried it, it may not work, and it seems to build for uboot “executable”, so could be worth a look at!
I also don’t know if it use the SBI for simple low level stuff or is somewhat hard coded to a board, but worth a look I think!