I tried to flash back the OEM firmeware with so many methods, but all ending on brick device .
i strip the file with dd command ( as I read i must skip 257 ) And I try with 129 also
i used tftp.. ssh (mtd and system upgrade commands) and luci all failed
I solder the pines also for easy serial connection and I get the serial connection working but with no luck in revert back .
I will post the errors and logs hope to get help for this issue