Did you do a 'hard reset' between each try?
(press AND hold pwr 20+s OR button inside)
Nearly all img have a uboot package
CPU actually is looking for idbloader, more specifically its signature (at sector 64)
8c3b fcdc 9fbe 519d
all versions of idbloader have this,,idbloader enumerates and enables mainboard mem
So, then there is room for uboot, which is assumed to be on same media
(press AND hold pwr 20+s OR button inside)
Nearly all img have a uboot package
CPU actually is looking for idbloader, more specifically its signature (at sector 64)
8c3b fcdc 9fbe 519d
all versions of idbloader have this,,idbloader enumerates and enables mainboard mem
So, then there is room for uboot, which is assumed to be on same media