sent from my Optimus G E971
Maybe the installation method can cause a problem:
1. Wipe Data/Cache
2. Wipe System
3. Install Rom . . .
CM10.1 strictly says not to wipe anything. You install the rom, then gapps, and THEN do a Factory Reset. I recall reading somewhere that you will brick your phone if you do not follow those instructions.
The E97x series is fairly similar but it is completely different from every phone I have played with (galaxy 1, 2, s2x, LG p500). On all other phones u wipe first but this can cause a brick on the e971 (rogers 2600) and some or all of the variants such as the e973 (bell/telus) which is very close except for its LTE frequency. You have an E973 Haze?