Database Develop

[Q] How to downgrade 2x back to 2.2.2 from 2.3

Hello, I dough I can do very much at this point then ask for help.
Yesterday I used LG KDZ tool to install update to my Wind Mobile LG Optimus x2 which is P999. With the help of KDZ I got the T-Mobile update to 2.3 on it and honestly I hate T-Mobile update it just sucks so much.
I did some reading around and try to flash the ROM and some how put on a backup that was also posted here on the forums of stock Wind Mobile LG Optimus ROM.
The problem is I never rooted it while it was at 2.2 and at 2.3, I can't root it with one click rooter it just does not work I gets to Step #7 and you get device rooted but its actually is not so I can't restore to the backup I download from XDA.
I honestly would like something similar to stock 2.2 that comes with WIND LG so if you can help out to either restore it to stock ROM or in some way move it from T-Mobile update back to 2.2 without the T-Mobile preloaded and other T-Mobile blobware crap that comes with it.

Hello!
Did you try this...
http://forum.xda-developers.com/showthread.php?t=1056847
Greetings
Medizinmann

update issue with lg thrill

my friends lg thrill p925 will not update over the lg update program to the 2.3.5 i have root already on andriod 2.2.2 he wants to go to 2.3.5 & its not letting me

babyboy3703 said:
my friends lg thrill p925 will not update over the lg update program to the 2.3.5 i have root already on andriod 2.2.2 he wants to go to 2.3.5 & its not letting me
Click to expand...
Click to collapse
Its the same process man.. dl flash tool ... and the gb baseband you want to flash v20p or v20c .. and use LG flash tool
Or take the battery out unplug the phone ... hold volume+ plug the phone back in continue holding volume + ... open LG update let the drivers install .. and at the top click customer service and go to recovery phone and enter your imei number put your battery back in and run update
Sent from my 2.9 version BiOHaZaRd cooked LG Thrill

back to stock 2.3.5 without KDZ files

Ok I am going to post this because it worked for me several times. If it works for you, great, if not, sorry......I am assuming zero responsibility for bricking your phone ….. So I was thinking there should be a simple way to go back to stock 2.3.5 using just the "LGMobile Support Tool" The problem is that it won’t let you run the update tool if it sees that the operating system version is correct (i.e. running any rom that is 20p based) so what I did was download an O3D rom and placed it on the phone (ThiaiZO3DV2.7.1GB to be exact) I used CWM to install the rom. What this accomplished was to change the OS version but not the baseband. When the rom was loaded and working I turned on debugging and then used the "LGMobile Support Tool">>>(the tool can be downloaded from the LG web site) it will now update the phone to stock 2.3.5 without giving you the message that says your phone is up to date. If you get stuck in a boot loop (as I did ) just pull the battery put it back in and boot into stock recovery using volume down , 3d button and power and just do all the wipes then reboot….I hope this helps someone

Ok,
just to be clear you were coming from the Optimus 3D baseband and rom and successfully flashed to the US Thrill baseband and rom using this method?
I just saw that gingerbread is finally out for the Thrill and thought i'd flash back if there was an easy way. (I have been running the Optimus 3d baseband and defualt rom for quite a while now)

IzeBerg said:
Ok,
just to be clear you were coming from the Optimus 3D baseband and rom and successfully flashed to the US Thrill baseband and rom using this method?
I just saw that gingerbread is finally out for the Thrill and thought i'd flash back if there was an easy way. (I have been running the Optimus 3d baseband and defualt rom for quite a while now)
Click to expand...
Click to collapse
Then there isn't much reason to switch to v20p if you are already on gingerbread unless you miss the at&t bloatware
sent from my acidhazard thrill

wayno140 said:
Then there isn't much reason to switch to v20p if you are already on gingerbread unless you miss the at&t bloatware
sent from my acidhazard thrill
Click to expand...
Click to collapse
But aren't I missing one of the bands (or frequencies) that at&t uses?
I have never had too many troubles in service but I do notice I almost always have less bars than other At&t users in the same locations

No I was on the Thrill ATT baseband ....... This is just to go back to stock if you are already on US baseband....Sorry I should have been more clear..... Say you were using a custom rom like "AcuraTeam_v.20P" which was made for the thrill, and you wanted to go back to stock 2.3.5 but you didnt have a clockwork mod backup of it on your phone. If you were to try using the "LGMobile Support Tool" it would tell you that your phone was already up to date and didnt need updated. So to get around this without having to use KDZ files to get back to stock 2.3.5 you would install the O3D rom which changes the version number of the operating system which tricks the "LGMobile Support Tool" into going ahead and reloading the phone with the latest ATT update.

Running the official XBSA404 ICS port on my Thrill. How do I go back to stock?

Hello there. I am running the official ICS XBSA404 port on my Trill, flashed with the LG tool. I am having some problems (camera is upside down and I have low ram). Phone is rooted without CWM recovery (for some reason it is impossible to install CWM recovery on it, it soft bricks). Can anyone PLEASE help me get back to stock?
Many thanks in advance...

Follow these instructions.
http://forum.xda-developers.com/showthread.php?t=1942836
Just curious but have you tried the custom version
http://forum.xda-developers.com/showthread.php?t=1963847
Are you having problems with signal.

95civicsi said:
Follow these instructions.
http://forum.xda-developers.com/showthread.php?t=1942836
Just curious but have you tried the custom version
http://forum.xda-developers.com/showthread.php?t=1963847
Are you having problems with signal.
Click to expand...
Click to collapse
Answering your question, I don't have service with a company in the U,S,A, anymore. Now I'm here just on vacations. I just purchased this Thrill without testing a sim card (I won't pay that expensive roaming from my overseas carrier). I plan to unlock it and use it there.
Thanks for the above link but... will this work on a Thrill (not optimus 3d)? I haven't tried the custom ICS yet, I would like to if it doesn't have those problems with the 3d camera. Can I move from the rooted Official ICS (no CWM) to the custom ICS?

domenicostorino said:
Answering your question, I don't have service with a company in the U,S,A, anymore. Now I'm here just on vacations. I just purchased this Thrill without testing a sim card (I won't pay that expensive roaming from my overseas carrier). I plan to unlock it and use it there.
Thanks for the above link but... will this work on a Thrill (not optimus 3d)? I haven't tried the custom ICS yet, I would like to if it doesn't have those problems with the 3d camera. Can I move from the rooted Official ICS (no CWM) to the custom ICS?
Click to expand...
Click to collapse
I don't think the 3D camera is fixed on any of the custom ones yet. I haven't checked in a bit, but from the last one I tried it wasn't. You're probably going to have to use CWM or TWRP to flash the custom ICS ROM as well.

The LG Optimus 3D and the the LG Thrill are essentially the same phone. The LG Thrill is the US version of the Optimus 3D. Those instructions will work with your phone. If you would like to install CWM you can use the following instructions to install the recovery.
http://forum.xda-developers.com/showthread.php?t=1859662
The download link is for the .apk file and is best downloaded from your phone, if that is possible. You need to be rooted for this to work. I am using the following ROM on my LG Thrill with excellent service.
http://forum.xda-developers.com/showthread.php?t=1956347
If you decide to use that ROM or one of the other Custom O3D ROMS, you will need a baseband called "LGP920AT-00-V18a-AMA-XXX-OCT-28-2011+0_CP.fls" to work in the US, found here
https://www.dropbox.com/sh/zv3qpd6jylvqg31/9jm_8omNov (Thanks Tactics119)
When you take the phone back overseas, you will need to change the baseband to one that works for your area. You can determine which one you need in this thread.
http://forum.xda-developers.com/showthread.php?t=1958484
You can obtain whichever baseband you choose, from the same place you got the previous one.
https://www.dropbox.com/sh/zv3qpd6jylvqg31/9jm_8omNov (Thanks Tactics119)

Hello. I was wondering when installing one of these basebands would you flash it in cwm?
Sent from my LG-P925 using xda premium

bigfoot.kom said:
Hello. I was wondering when installing one of these basebands would you flash it in cwm?
Sent from my LG-P925 using xda premium
Click to expand...
Click to collapse
No. You have to install the baseband and the original ICS port through lg flash tool if you are updating from gingerbread. If you already installed ICS then all you have to do is install the baseband through the same tool. But if you are flashing only the baseband, when it finishes it's going to say invalid ap path. When it tells me this, it flashed my baseband, but it normally has an AP (in this case, ICS) along with the CP (normally the baseband) which is why I think it gives this error message. So you can just restart your phone.

LG-P999 Ruined Pls. Help

So my LGP999 of 2 years after I "rooted" it, and tried too install a custom recovery changed the boot logo, and doesn't even load up just stays up the book logo or the s/w screen sometimes, I can't load clockwork mod, I am a noob, don't get me wrong i've flash many roms on my nexus 4 but really want to revive my LG-P999 from my friend, If this helps I bought it from wind mobile canada.

Nvflash and smartflash are the last resort, can revive any kind of soft brick. Unfortunately all binaries available are from stock roms, you'll have to root and install recovery in order to install custom roms afterwards.

Sorry to break the news to you, but afaik the P999 is incompatible with P990 ROMs! The P999 is NOT an Optimus 2x, but rather a LG G2x.
Check out this thread for more details.
Good luck fixing it!

You can fix it. Make sure baseband are older than latest update(flash one with smartflash). Then use LG update tool and do an emergency update. LG update your phone by checking current baseband