Need help changing Roms - Verizon LG G2

So I want to go from the 5.0.2 xenon ROM, on the 12b bootstack, to a stock ROM to get GPS working, then to the 5.1.1 xdebb ROM on the 39a bootstack. What all do I need to do this?

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Baseband question

I have had my G2 since the begining and never took an OTA. My baseband version is VS98010B, but I am running Malladus 1.2.9. Can I just flash a newer baseband, 11A, 12A, 12B or 24A?
I prob should just wipe and return to stock, and take the OTA like everyone is saying, but I am a believer of never taking the OTA. If I return to stock, will my nadroid backup from TWRP be removed and my whole phone be wiped back to default status? SDcard wiped?
Thanks,
Opie
Do not flash the 24a (4.4) baseband, 1. it won't work 2. It isn't the official update there are bugs. It shouldn't do any damage, you will have no radio but you should be able to flash back. I think you should be able to flash 12B baseband because it was mainly bug fixes for 4.2.2 but I'm not 100% sure. I would just wait until the official ota comes out then bite the bullet flash to stock 12B and update to KK from there following instructions on xda to retain root/recovery. There isn't really a huge performance difference
Edit:
If you use the lg flash tool to return to stock the entire phone will be erased
opiespank said:
I have had my G2 since the begining and never took an OTA. My baseband version is VS98010B, but I am running Malladus 1.2.9. Can I just flash a newer baseband, 11A, 12A, 12B or 24A?
I prob should just wipe and return to stock, and take the OTA like everyone is saying, but I am a believer of never taking the OTA. If I return to stock, will my nadroid backup from TWRP be removed and my whole phone be wiped back to default status? SDcard wiped?
Thanks,
Opie
Click to expand...
Click to collapse
Yes, you can flash the 12b modem/radio. And yes everything will be wiped if you go back to stock.
I would recommend doing the tot back to stock 11a, taking the 12b ota, rooting and installing twrp, and then flashing the new kitkat malladus. You shouldn't have to worry about baseband if you do that.
Thanks for the answers. I guess I knew that the best would be to revert to stock and take the OTA. Just did not want to have to backup my SD card but it seems that it might the best to fix the minor issues I have.
xemnas18 said:
Yes, you can flash the 12b modem/radio. And yes everything will be wiped if you go back to stock.
I would recommend doing the tot back to stock 11a, taking the 12b ota, rooting and installing twrp, and then flashing the new kitkat malladus. You shouldn't have to worry about baseband if you do that.
Click to expand...
Click to collapse
I'm on the 10 or 11 aboot, not sure which. I have run aosp roms since they became available in Sep/Oct, so I never updated to the 12b aboot. If I continue running aosp roms, is there a need for me to update my aboot? Only reason I ask is I have been seeing mention of bug fixes in 12b and wondering if I would benefit from it. I already have the 12b baseband.
Thanks in advance!
zandroid said:
I'm on the 10 or 11 aboot, not sure which. I have run aosp roms since they became available in Sep/Oct, so I never updated to the 12b aboot. If I continue running aosp roms, is there a need for me to update my aboot? Only reason I ask is I have been seeing mention of bug fixes in 12b and wondering if I would benefit from it. I already have the 12b baseband.
Thanks in advance!
Click to expand...
Click to collapse
No, probably no need to update unless the rom dev says to. I've been on 11a and 12b firmware, didn't notice any significant difference.
You can do it if you want tho, might be better to be up to date. Idk about aosp, but on stock based, 12b is the preferred firmware for that reason.
Sent from my VS980 4G using xda app-developers app

[Q] Update from CM nightlies to 24a

I wanted to know if there is something i have to do when im going to flash the 24A kitkat rom for the VS980, like any new radios to flash and such? OR would i just format and flash from recovery?
markalmza said:
I wanted to know if there is something i have to do when im going to flash the 24A kitkat rom for the VS980, like any new radios to flash and such? OR would i just format and flash from recovery?
Click to expand...
Click to collapse
You need to upgrade your bootstack to 24A, it's all listed out in the first post of the CM11 based on 24A thread.
http://forum.xda-developers.com/showthread.php?t=2702958

26a roms with 24a rom installed and cant ota

i bought a used vs980 and it has 24a.
im stock and rooted with towelroot
i have twrp 2.8.0.1 installed
i do not have service and phone has clean esn
how can i update to 26a?
i cant install any roms that are based on 26a right?

[Q] Flashing VS980 26A to current version

Was wondering can you flash VS980 on 26A to current verison 39A or whichever without a root or custom rom? If i have to root and /or custom rom can anyone give good suggestions? Thanks

Downgrade with flashable stock rom, is it possible?

Hello,
So I have flashable stock roms for both 5.1 and 6.0 (I think, I haven't upgraded to 6.0 yet to know if it works) and I have the TWRP custom recovery and I'd like to know, if I upgrade my phone to 6.0 with the stock rom, can I just flash it back to 5.1 with it's stock if need be? My phone is a Victara XT1097, the Brazilian model.

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