[Q] cm11s flashing modem question - G2 Q&A, Help & Troubleshooting

was thinking of installing the cm11s rom on a lg g2 d80020y baseband version m8974a-aaaanazm-1.0.190082 build kot49i the page i found here on xda states that you should flash the modem with a kk what i am wondering is
1 can i flash the modem in twrp
2 after the modem is flashed can i use it with the stock os that came shipped with the lg or will there be problems
3 what does this flash basically do to the modem or what does it modify the modem to do
4 the cm11s also states to flash gapps but it doesnt say witch version do i use 4.4.2 or 4.4.4 or can i use either witch ever i prefer
thank you.

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[Q] Custom ROM on 4.4.2?

Well, since this is noob-friendly, would I be able to install a Custom ROM IF there were one available for 4.4.2? I got a Custom Recovery from Autorec and it said it downgraded my Bootloader so that it can install and old version of TWRP.
Tymau5 said:
Well, since this is noob-friendly, would I be able to install a Custom ROM IF there were one available for 4.4.2? I got a Custom Recovery from Autorec and it said it downgraded my Bootloader so that it can install and old version of TWRP.
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you can install any rom for your device as long as you meet the following-
a)if you are flashing a kk rom(g pro 2/flex kk/stock kk) then you just just have to either be on kk with recovery or flash the kk baseband for your device
b)if on kk and you want to flash jb rom(stock jb/flex jb) you need to flash the jb baseband at the same time as you flash the rom
c)if you want to flash an aosp rom you either check if it supports stock kk/if it doesn't mention anything flash a kk ported baseband for aosp kk or flash a jb baseband while flashing aosp rom
XxZombiePikachu said:
you can install any rom for your device as long as you meet the following-
a)if you are flashing a kk rom(g pro 2/flex kk/stock kk) then you just just have to either be on kk with recovery or flash the kk baseband for your device
b)if on kk and you want to flash jb rom(stock jb/flex jb) you need to flash the jb baseband at the same time as you flash the rom
c)if you want to flash an aosp rom you either check if it supports stock kk/if it doesn't mention anything flash a kk ported baseband for aosp kk or flash a jb baseband while flashing aosp rom
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Yeah, it works! Thanks for verifying for me!

How do i know whether i already have the kitkat basebans

helo i have lg g2 d802 and i recently flashed the rom http://forum.xda-developers.com/showthread.php?t=2728727 but im thinking of downloading another rom and one im checking out says you need kitkat baseband????? how do i know if i have kitkat baseband because i think the rom i downloaded changed it
Also i realised it changed my kernel from just 3.4.0 to 3.4.0-CM+audiogod and it also changed my build number
Well seeing as you flashed a 4.4.4 based ROM (Kitkat), then yes, you're on a Kitkat baseband.

KitKat baseband

Sorry if this is the wrong section but I'm new to this forum. I previously installed Cloudy 3.3, and then I installed MIUI7: to do it I did a backup of my whole rom and then flashed the KitKat baseband. If I want to flash a Lollipop rom, do I have to flash the Lollipop baseband? Or can i just restore my Cloudy rom?
You can restore Cloudy, it uses Kitkat kernel.
Okay, but let's pretend I wanted to install a Lollipop rom (like Cyanogenmod 12): can I keep the kitkat baseband or do I have to change it?

work custom kk base rom on lollipop modem and bl?

Hello friends now my gti9505 have custom lollipop rom.UHOJ2 base modem and bl.one suggest me can I flash custom kk base rom?any problem after flash kk base modem bl over on lollipop modem and bl?
Yes it will probably work.
Be sure no problem about baseband and imei lost?
chashmaa said:
Be sure no problem about baseband and imei lost?
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A custom rom never contains a modem or bootloader. So no that does not apply.
It mean no any problems after flashing?
Some custom ROMs require an up-to-date modem and bootloader. If you flash a custom ROM, the imei may disappear or wifi/calls may not work if the ROM is too new for the phone's bootloader and modem.
Before installing a custom ROM on a phone, I make sure that the phone is working properly with the latest stock ROM.
audit13 said:
Some custom ROMs require an up-to-date modem and bootloader. If you flash a custom ROM, the imei may disappear or wifi/calls may not work if the ROM is too new for the phone's bootloader and modem.
Before installing a custom ROM on a phone, I make sure that the phone is working properly with the latest stock ROM.
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He means it the other way around. He wants to use a kitkat rom on a lollipop bootloader and modem. That's shouldn't be a problem.
I see the OP asking 2 questions:
1) Can a KK ROM be flashed to a phone running an LP bootloader and modem. Generally, I would say yes but whether all functions work will depend on the KK ROM. Some custom KK ROMs I ran on my Nexus 5 required me to downgrade the bootloader and radio to KK versions.
2) Can a KK modem and bootloader be flashed over an existing LP modem and bootloader? I think it depends on the phone's installed bootloader.
Yes audit13 brother my quistion is no1. I have now albe95 astra v2 on UHOJ2 base modem and bl lollipop. And goes to goldfinger kk base.now confused what can I do?
Did not try on i9505 but it works on i9500. I think it will work but u should backup your EFS partition
I say try the KK ROM on the LP bootloader and modem. If it doesn't work, you'll either have to find another ROM or you'll have to try and flash a KK bootloader and modem over a LP bootloader and modem.

Flashing RR 5.8.0 - Modem Differences

So I'm flashing stock 5.0.1. After that CF Autoroot, TWRP etc. etc....
As I'd like to flash resurrection remix 5.8.0, the thread says this:
ROM Firmware Required: Lollipop supporting bootloader and modem / non-hlos
Now the stock rom says I'm on XXUHPK2 modem and bootloader, but It doesnt say if Its combined ora just non-hlos or gsm.
What are the modem differences? Shoueld I flash another modem or bootloader?
I just understood that non hlos is for lte... but dunno whats better for the RR rom.
I'm on GT-i9505
Thanx for help
As long as the phone is running the latest stock 5.01 ROM, the bootloader and modem should be fine to use with the custom ROM.
Stock ROM flashes everything you need.

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