I ran into a strange problem. I was experimenting between 2 ROMs (T-Mobile 30b Extreme and xdabbeb’s VS980 3.12). I have TWRP installed and I had successfully tried both ROM (Stock 39A Rooted -> T-Mobile 30b Extreme -> xdabbed -> T-Mobile 30b Extreme).
But then, I went into TWRP recovery and decided to wipe it clean (Advanced, wiped all partitions including system) and flash again, something strange happened. The phone will not finish booting.
The phone will boot up with the standard LG logo for about a minute. Then boot into an animated, bigger LG Logo. And then it will stuck there forever. Normally, it should go into something like "initializing… 1 out of 130".
I can still enter TWRP recovery and browse the file system and even flash another ROM from OTG-USB. But none of the ROM would boot beyond the initial boot screen. Any ideas?