OK ... but three things yet:
1) box in rescue mode? if no reboot to rm
Yesterday, I have made an Italian guide for flashing AZBoxHD with the MAT and in a test phase ... at reboot the receiver did not go into rescue mode ... but it start previous stored DOM image ... and the tool is remained on waiting stalled !
Since we were still in the safety area (no flashing procedure started) I turned off the receiver and closed the tool ... then I started with the receiver already in rescue mode (STB On - Vol +) ... and of course everything went correctly !
Only, so you know ...
2) started tool from /tmp? otherwise big warning for flashing
OK ... I have not checked if already is possible ... but wanting ... it would not be appropriate to allow the cache and transfer procedure using also an USB storage device ? ... if the user prefers this ... obviously with choice conditioned by the tool !
3) check for same kernel CRC after flashing (if it fails - install old kernel again)
After you have flashed the new kernel on nor-flash and the CRC control not passes, how do you restore previous kernel version? Do you do a security backup before flashing process? I think so ...
Have a nice day and thanks for the great support ... Ciao