Can't get to marshmallow

[steven_computer_guy]

My friend has a verizon LG G3. It is currently running 5.1.1 lollipop 35b. It was having a bunch of random reboots, we put in a new battery and the reboots stopped. The phone is working fine, except it keeps downloading the 46a 6.0 marshmallow update, but when it reboots to install, it gets to 2% and says error and reboots and I am back in 5.1.1 lollipop still. I checked software status, and it said "official" and I even used the Lg upgrade and repair assistant from verizon and chose to repair, which downloaded a 1.64 gb file (the 35b software kdz I'm pretty sure) and flashed it to the phone. I have also used lg flash tool 2014 to flash the 35b kdz. It always flashes the 35b kdz just fine, but still fails to take the marshmallow update.

I don't need root. All I'm trying to do is get from stock 35b lollipop to 46a marshmallow since it keeps failing. Since it didn't work even after successfully flashing the kdz, do I have to go all the way back to 10b and then just take a bunch of software updates ota until I get to 46a? I helped her get this phone on ebay, and it wasn't rooted when we got it, but for some reason it just won't take the update.

I understand there is no 46a kdz available right? I have been reading around about downgrading to 10b and whatnot here on xda, but I would prefer to not have to go through all that extra hassle if I don't have to. I don't need root, just need to update.

Any tips / ideas would be great! thanks.

 

[roirraW "edor" ehT]

Since it didn't work even after successfully flashing the kdz, do I have to go all the way back to 10b and then just take a bunch of software updates ota until I get to 46a?

I doubt if that would make any difference - OTAing to 35B gets you the same thing as flashing the 35B KDZ, but this is such a weird problem, I don't know... Try it and let us know.

You could try any extra factory reset even though flushing the KDZ with the official tool does that.

The only other thing I can think of is to try taking the OTA without the Micro SD card in.

I understand there is no 46a kdz available right?

Correct, haven't seen it. The tool you used should've downloaded the 46A KDZ if it had been available.