I was following the "main thread" a while ago before these phones had their own section, but hadn't checked for updates since early to mid January (before the bootloader was unlocked). Now I see that it's unlocked, there is unfortunately no support for the Canadian (Bell) variant, the E617G.
I extracted the bootloader from my wife's phone and did a binary comprison to the various unlocked bootloaders for the E610, 612 and 615 and it's almost identical byte for byte to the E610. Aside from the edited messages and the tail end of the files where the checks appear to be located, there is one location (byte 0xB476) that is different.
I'm not really experienced in this sort of work, but could that one byte be what's causing the random reboots for the E617 variants? Before I try truncating the file I extracted to removed what appears to be the secure checks and flashing it, does anybody have any other reasons why the E617 has been "left out in the cold"?
I've attached some screenshots of the comparison to the E610 emmc_appsboot.bin
Differences in Messages
Apparent Secure Checks?
In the 3rd screenshot, you can see in the E610 file, after 0x40F07 the file is blank, but in mine the file continues on (it's 4MB of null padding by the looks of it).