problem is probably wrong checksums (why? - blackout/incomplete firmware upgrade/playing with telnet/other reasons...). As suggested, try to switch working partitions. As you do not have console, try identify micom eeprom and switch working partitions by editing bytes via arduino OR with programmer. No guarantee it will work, at least, you lose nothing (just your time).
Statistics: Posted by juusso — Wed Sep 02, 2015 8:14 pm — Replies 4 — Views 54