please i need help, in case that i cannot solve more than three full days in warm spring Arambol village, near my laptop with blinking uart module. . .
i have brick kt3 basic (all - new ereader 2016) 5.9.4 before brick.
it was done with wrong diags image send to fasboot, when i stuck in diags.
i have full backup made by tools backup, of same 5.94 j.b. (from another kindle)
i can't boot to fastboot, or even bist, due kernel error, all i have - uboot with mmc commands.
please, someone told me about sending and writing backup files through u-boot.
i eat a tons of mobileread and other u-boot similar forums

no idea
is it possible to send and write backup files through u-boot, or it is throw-away-pad only?
i still in amazon guarantee year, but kindle seems like photoframe with cool 2 color led.