downgrade baseband to 2.2.2 - T-Mobile LG G2x

i need some help, im on the stock 2.2.2 rom to return it back to stock, but icant update it to stock 2.3.3 because of the baseband. its on GB's baseband. now ihave searched a lot into it but havent found a solution. is there any way to bring the baseband down back to 2.2.2??

conz56 said:
i need some help, im on the stock 2.2.2 rom to return it back to stock, but icant update it to stock 2.3.3 because of the baseband. its on GB's baseband. now ihave searched a lot into it but havent found a solution. is there any way to bring the baseband down back to 2.2.2??
Click to expand...
Click to collapse
no we have no way of flashing basebands on this phone...

conz56 said:
i need some help, im on the stock 2.2.2 rom to return it back to stock, but icant update it to stock 2.3.3 because of the baseband. its on GB's baseband. now ihave searched a lot into it but havent found a solution. is there any way to bring the baseband down back to 2.2.2??
Click to expand...
Click to collapse
I really dont understand the question as to why would you downgrade basebands?

Gingerbread is the "stock" rom now. If you need to return your phone T-Mobile and LG fully expect you to have the Gingerbread update on it. There is no reason to return it to Froyo. Plus the baseband cannot be downgraded or even upgraded on this phone outside of an official OTA from a carrier or LG, through the LG Update or the KDZ method which invokes the LG Updater.

Related

How so you get back stock....

I am trying to get back to stock froyo and stock baseband. Does anyone know where I can find the information and software to restore back to factory froyo and original baseband?
Sent from my Miui LG-P999
http://forum.xda-developers.com/showthread.php?p=14159600#post14159600
I don't think it restores the baseband though.
tidewaterns said:
I am trying to get back to stock froyo and stock baseband. Does anyone know where I can find the information and software to restore back to factory froyo and original baseband?
Sent from my Miui LG-P999
Click to expand...
Click to collapse
why do you need to get back to old baseband?
crazythunder said:
why do you need to get back to old baseband?
Click to expand...
Click to collapse
So I can get the OTA update.
Sent from my LG-P999 using XDA App
tidewaterns said:
So I can get the OTA update.
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
so, you have the new baseband, but not the recent gb update?
I think he means the stock kernel? Watch the video and yes your kernel goes to stock.
http://theunlockr.com/2011/05/23/how-to-unroot-the-t-mobile-g2x/
crazythunder said:
so, you have the new baseband, but not the recent gb update?
Click to expand...
Click to collapse
I did the update from the LG updater but didn't like it. I just wanted to go back to Froyo with the old baseband so I can get the OTA update. I know the updates were the same, it is just person preference.
nvm...............
back to stock
yes i would also like to get rid of my garbage xboarders rooted LG ota 2.3.3 rom and start with a clean slate. i want to run the update either OTA or direct from LG updater, but I can't with the July 15 baseband. i'm having a lot of problems - i have to reboot phone to switch from wifi to data or vice-versa, echo sound through headphones, DTS makes music sound distorted and echo-ie, GPS takes FOREVER to lock on location (i even tried doing the hidden menu fixes), and a lot of times when I turn my phone it won't find a signal so i have to reboot (and i live in downtown portland, or), and tons of apps are just showing white boxes for icons, the whole thing is laggy as hell, etc. etc etc.. ever since i've had new baseband i've had tons of problems, regardless of what ROM i have installed. i've tried different kernels too.. so must be baseband right? i hope someone can help us out soon!

G2X and July Baseband

I have a G2x and my Baseband is Mar27 2011 I have read on here that the July15 2011 baseband might clear up issues and make the phone work better is this true?
I am also rooted on a 3.3.4 ROM if I updated the baseband can I reroot my G2X?
As far as I know, nobody has uploaded the july baseband. I think the only way to update it would be through the lg tool or ota.
I don't know about one-click rooting, but if you get the baseband through the official update, you can always just flash prerooted gingerbread.
Sorry I wasn't very clear I was talking about going back to stock and then using the lg tool and update to stock 2.3.3 that has the July Baseband. I want to make sure I can reroot back to other roms after I do this and if anyone has done this knows if the July Baseband is better than the March one?
1. 2.3.3
2. Yes, you can reFLASH other roms after updating to the new baseband, and root them.
3. For some, the new baseband has fixed gps issues. Others seem to be having issues with the data signal.
yeah buddy!
i just reverted to stock using the later NAND backup, V21E.zip , then the LG upgrade tool recognized and flashed without errors, tho before I restored to stock it was giving me some errors in very poor english.
Revert to stock -> LG Update -> NVFlash CWM -> CM Nightly = GPS works! FINALLY! I haven't been able to use my GPS on pretty much any rom til this point.
I definitely vote for the go ahead, the new baseband makes a difference for sure!
Fixed thanks and great info so far kiddecks have you noticed any issues with your data signal? the gps is not a feature I will be using a lot my main focus is on reception and data.
kiddecks said:
Revert to stock -> LG Update -> NVFlash CWM -> CM Nightly = GPS works!
Click to expand...
Click to collapse
Don't forget to remove CWM as part of reverting to stock. You don't want to give the lg tool any chance to brick your phone like its doing for some people.
Thanks for that I will make sure to remember did you update your Baseband heysharon?
Not yet, the ota is either being dodgy or slow to come by, and I can't get the lg tool to install on my computer. Until the ota arrives for my phone, I'm hoping for the off chance that someone will upload the new baseband.
ok thanks for all your help from the sounds of it you also want to try out the new Baseband
Was wondering if anyone was still working on making
a zip file of the July baseband? I'm sure it would be much
Appreciated by many here. Thanks
and how can i remove cmw?
gypsy214 said:
and how can i remove cmw?
Click to expand...
Click to collapse
Do mean clockworkmod recovery? If you want to flash back to stock recovery you can use the one click nvflash tool from the development section. When you're at the step where you choose which version of recovery to flash just choose stock.

[Q] Help. Stock Nandroid of 2.33

Nevermind. I didn't search well enough before. I found a post with it and just restored it.
Hey All, I need a stock nandroid of 2.3.3. Here's my dilemma. I updated to 2.3.3 through the LG update tool and then my phone started acting all crazy. I then decided to revert back to 2.2.2 using this tread and it still didn't solve the craziness.
http://theunlockr.com/2011/05/23/how-to-unroot-the-t-mobile-g2x/
I contacted T-Mobile and I have an exchange on the way, but I told them that I have 2.3.3 on the phone and I would like to return it to them that way. I tried just updating the phone again with the LG update tool, but for some reason it thinks I still have version V21E. Any help would be appreciated.
Thanks All!

[Q] HELP! Questions!

Ok, so I just purchased a rooted G2x off of ebay. I'm coming from a moto cliq (yes, make fun of me) So i'm a bit over my head when it comes to custom ROMs and such. I'm on 2.2.2, and need to know what I should do.....
I've been having some data connection issues even if i'm on Wifi, the connection will just drop and won't come back for about 15 seconds. It's getting pretty bad, and i'm exasperated atm.
Do I upgrade to the LG 2.3.3? I don't want to lose my camera's features.
Do I install CM7? will that fix any of the touch screen issues and connection drops?
In your opinion, what would you do if you were in my shoes?
I'm open for all suggestions.
I would go for the update because it updates the baseband which deals with radio signals and may help with your connectivity issues, i would TRY CM7 for a bit and see how it goes. You can backup in Clockword Mod Receovery and when you restore to that backup you will have exactly what you backed up from. So backup on 2.3.3 --> install CM7 --> try it out for a few days ---> restore if you dont like/keep if you do.
heres a link to the LG froyo camera working for stock 2.3.3
http://forum.xda-developers.com/showthread.php?t=1166531
enjoy.
Mister Hat said:
I would go for the update because it updates the baseband which deals with radio signals and may help with your connectivity issues, i would TRY CM7 for a bit and see how it goes. You can backup in Clockword Mod Receovery and when you restore to that backup you will have exactly what you backed up from. So backup on 2.3.3 --> install CM7 --> try it out for a few days ---> restore if you dont like/keep if you do.
heres a link to the LG froyo camera working for stock 2.3.3
http://forum.xda-developers.com/showthread.php?t=1166531
enjoy.
Click to expand...
Click to collapse
Thanks for the reply. I'm still a bit confused though, when you say install 2.3.3 and backup(is that the stock 2.3.3 from LG>). Does that mean i'll lose my root? and I was under the impression that CM7 was GB, just a custom build with root permissions.
Lastly, how would I install the LG froyo camera?
Thanks for the help
ThatPurp said:
Thanks for the reply. I'm still a bit confused though, when you say install 2.3.3 and backup(is that the stock 2.3.3 from LG>). Does that mean i'll lose my root? and I was under the impression that CM7 was GB, just a custom build with root permissions.
Lastly, how would I install the LG froyo camera?
Thanks for the help
Click to expand...
Click to collapse
Doing the official update may help because it upgrades your baseband.
You'll lose root until you restore you CM7 backup.
CM7 is GB but there is no way to update the baseband currently (that I know of) without doing the update.
You can't currently on CM7.
wewoapsiak said:
Doing the official update may help because it upgrades your baseband.
You'll lose root until you restore you CM7 backup.
CM7 is GB but there is no way to update the baseband currently (that I know of) without doing the update.
You can't currently on CM7.
Click to expand...
Click to collapse
Again thanks for the quick reply. If i used CWM via NvFlash to backup my current image(2.2.2 rooted) and then updated to 2.3.3 via LG GB. Would I be able to go back to my 2.2.2 rooted if I didn't like 2.3.3?
Thanks to both
wewoapsiak
Mister Hat
You would be able to. But I was suggesting that you update to 2.3.3 (official) and then install Clockword mod recovery (http://forum.xda-developers.com/showthread.php?t=1056847&highlight=clockworkmod) Then backup from there (2.3.3) and flash CM7 (based off of 2.3.5) and if you dont like THAT then restore to stock 2.3.3.
Another option would be to update --> install clockwork mod---> flash this (http://forum.xda-developers.com/showthread.php?t=1179748) Which is a rooted GB. This would leave you with a stock 2.3.3 ROOTED, if you like the stock.
Overall I'd definitely go for CM7 though. More features just great overall. Also if you're looking to overclock then it IS possible with the stock GB thanks to Faux (http://twitter.com/#!/faux123) flash the latest G2x kernel on his twitter. Then you can overclock.
Bottom line I would just backup your current 2.2.2, install 2.3.3 through the LG updater (be careful following instructions in doing so) and just flash different ROMs and see which ones cure your issues best and which suits you best.
ThatPurp said:
Again thanks for the quick reply. If i used CWM via NvFlash to backup my current image(2.2.2 rooted) and then updated to 2.3.3 via LG GB. Would I be able to go back to my 2.2.2 rooted if I didn't like 2.3.3?
Thanks to both
wewoapsiak
Mister Hat
Click to expand...
Click to collapse
Yes. After the official update you will have to flash clockworkmod recovery again, but then you can flash any rom you want.

Running broken Gingerbread baseband, how to downgrade-upgrade to working?

Hey XDA modders,
Last year I upgraded with the leaked Gingerbread incl. baseband:
Android 2.3.5
L6260_MODEM_SIC_01.1042.00 baseband
GRJ90 build
2.6.35.7+ kernel
LG920-V21a-NOV-16-2011
Unfortunately it's been nothing but problems since then: missed SMS, ghost calls, etc. Unfortunately I'm now off the official LG path, so I can't get back. One of the difficulties in XDA is it's hard to keep up with what is going on. So I'm really not sure what to do as it seems people like me have 'missed the boat' so to speak to get this fixed, as it's hard to search and find any response about this.
My question is:
- What basebands have no known issues? eg. 21a, 21b, 20b?
- How do I downgrade/upgrade to the correct baseband? Flash KDZ?
Cheers
Leon
For what I know you have to downgrade to a 10x firmware ( with kdz or bin file ) only froyo rom seems to work properly
All Gingerbread Roms + CM Roms that used GB baseband suffer from this problem. The problem is in the new bb came with GB. So, the only solution for now is to go back to any froyo Rom.
However, the latest froyo Rom suffer from a problem, when you set wifi sleep policy to never, the phone will randomly reboot number of times a day. So, flash the one before the latest.
LG lost us all, no one is satisfaied!
you can follow this guide to upgrade/downgrade the stock rom, i used it to fix my bricked phone, it works on the downgrade too i downgraded from v21b to v21a

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