[vishcompany]

Originally Posted by slowfax

I see, it is still listed under "Tweaks for non-rooted devices" on https://wiki.mobileread.com/wiki/PRST...#Database_hack.

historic reasons, in a way. The database hack was the first step and did not need rooting. I will shift it asap.

Speaking about reboot, there seems to be different ways of booting.
I don't have enough insight, but I also experienced this issue, that the reader did not pick up the sd-card rescue set. Only when I managed to bring it to a complete halt (power off) and then coldboot, it worked. Could it be, that the bootloader (I guess, that's the authority, which triggers the update from sd) only gets active at coldboot but not reboot?
Did you try pressing reset and power button at the same time and hold? (like described here), that did the trick for me.