I've found some "step by steps", but had no success with them. f.ex. I could not found Update&Backup-App :-) and with another Backup-Apps the aml_update.zip didn't work.
Also tried different dtb.img files .....
But I mean, there "has to be" an simply solution for that. Under /dev/block directory, there are rknand_boot and rknand_uboot entries.
Could it be, that I only need a proper uboot-NAND-file and burn it via "dd if=good_one.img" of=/dev/block/rknand_uboot" ?
thanks for some advices
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