[Q] Backdating LG Optimus Black To 2.3.4 - LG Optimus Black

Recently i updated my LG Black to 4.0.4, using LG's Mobile support tool. After upgrading, i decided that i don't like ICS on the LG Black, and wish to go back to gingerbread. I've tried googling around, but cant find instructions on how to do it.
Does someone know of a method that doesn't use CWM Recovery.
Regards
Andrew

theandrewhead said:
Recently i updated my LG Black to 4.0.4, using LG's Mobile support tool. After upgrading, i decided that i don't like ICS on the LG Black, and wish to go back to gingerbread. I've tried googling around, but cant find instructions on how to do it.
Does someone know of a method that doesn't use CWM Recovery.
Regards
Andrew
Click to expand...
Click to collapse
You'll a GB ROM image (factory).
I'm not sure what else.
I'm guessing that you'll:
- Need to unlock to bootloader
- Use a tool like smartflash to install the GB ROM
I'd read thoroughly through: http://forum.xda-developers.com/showthread.php?t=1111771
I'd do a search in this forum for "downgrade", "factory". I wish I could be of more help, but I've never personally downgraded a phone to factory.

Related

[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

[Q] How to flash back to stock rom and unroot my P970?

Dear All brother
I just want to flash back to stock rom and unroot my P970 like initial status. Is there any tools or method to do so?
It's very simple, just follow the Tutorial: LG P970 (P970H) unbrick/flash using SmartFlash Tool and install whatever version of firmware you had initially, you can find V10 firmwares on the Firmwares LG P970, P970H thread.
If you want to get to the official V20 firmware, just upgrade your phone using the LG program (the one that came on the CD with your phone).
This way you'll have an "official ROM" on your phone and it won't be rooted either (it's just like it came "from factory").
Btw, you'll loose the root and the recovery functionality, but i think that's what you wanted in the first place
EDIT : replaced Samsung with LG, i was reading up on modifying my Samsung Spica and somehow mixed up the postings
verszipo said:
It's very simple, just follow the Tutorial: LG P970 (P970H) unbrick/flash using SmartFlash Tool and install whatever version of firmware you had initially, you can find V10 firmwares on the Firmwares LG P970, P970H thread.
If you want to get to the official V20 firmware, just upgrade your phone using the samsung program (the one that came on the CD with your phone).
This way you'll have an "official ROM" on your phone and it won't be rooted either (it's just like it came "from factory").
Btw, you'll loose the root and the recovery functionality, but i think that's what you wanted in the first place
Click to expand...
Click to collapse
Samsung??? LG????:what::banghead:
Samsing is getting into the heads of people it seems...
Anyways he is right flash your stock fw with smartflash
Sent from my LG-P970 using XDA
Thanks all!!!

[Q] <Optimus Black KU5900 CWM Recovery Problem>

Hello!!
I've recently updated my phone to Official ICS (Korean Ver.) V30I and I had problems installing the recovery.
I could root my phone, its just that I can't install the recovery. I know there are already modified ICS Korean Ver. for p970 but there are still a lot of bugs and battery life is kind a shorter than the official ics.
First, I've used rom manager to install but after boot, ""security error"" came up at boot and cannot even start.
Second, I've also tried using other methods such as programs made by OB devs but still the same problem.
So I would like to ask, if anyone out there has this problem and any solutions to this, please reply.
Have a nice day and thanx.!!
hydra18 said:
Hello!!
I've recently updated my phone to Official ICS (Korean Ver.) V30I and I had problems installing the recovery.
I could root my phone, its just that I can't install the recovery. I know there are already modified ICS Korean Ver. for p970 but there are still a lot of bugs and battery life is kind a shorter than the official ics.
First, I've used rom manager to install but after boot, ""security error"" came up at boot and cannot even start.
Second, I've also tried using other methods such as programs made by OB devs but still the same problem.
So I would like to ask, if anyone out there has this problem and any solutions to this, please reply.
Have a nice day and thanx.!!
Click to expand...
Click to collapse
Use LG ROM Converter Patch CWM
Done
Then root.
Have fun
Sent from my Spy using Super Junior
SoulExertz said:
Use LG ROM Converter Patch CWM
Done
Then root.
Have fun
Sent from my Spy using Super Junior
Click to expand...
Click to collapse
Don't use ROM Coverter! It doesn't put the different bin parts correctly with such a large bin file.
If your using V30I then I'm assuming you have KU5900. Use novasoc's lg extractor to extract the bin file, patch the various .bin files together in numerical order. You can then use novasoc's recovery injector to patch the bin file. Patch with SFT and voila.
hydra18 said:
Hello!!
I've recently updated my phone to Official ICS (Korean Ver.) V30I and I had problems installing the recovery.
I could root my phone, its just that I can't install the recovery. I know there are already modified ICS Korean Ver. for p970 but there are still a lot of bugs and battery life is kind a shorter than the official ics.
First, I've used rom manager to install but after boot, ""security error"" came up at boot and cannot even start.
Second, I've also tried using other methods such as programs made by OB devs but still the same problem.
So I would like to ask, if anyone out there has this problem and any solutions to this, please reply.
Have a nice day and thanx.!!
Click to expand...
Click to collapse
How did you root the phone without CWM?
Oh. Thats easy. Just use unlockroot program^google it^ and your phone will be rooted.
Anyhow now p970 users have official ics installed on their phones...can someone please find a way to install cwm ... Cuz as i mentioned above... I still get security error at boot.... And also Ive pretty much used all the methods above and still not working
thanx
Sent from my SHW-M250K using xda premium
(bump) Hi! i also have encountered the same problem. is there a way around it? i want to flash CM10 on my KU5900 OB.
same problem here, does anyone can help? i can't even start the phone, the first screen shows "security error" and the device turns off again...
See this...
http://forum.xda-developers.com/showthread.php?t=1111771
bruno.u2 said:
See this...
http://forum.xda-developers.com/showthread.php?t=1111771
Click to expand...
Click to collapse
thanks for the reply, my friend... i just figured out what to do and was able to bring the phone to living world again. the trick is to put it in "update mode" what is everything but intuitive...

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.

[Q] Trying to install custom ROM with SECURITY ERROR

I see there are a lot of articles saying how this should be done but at least in my case I haven't had luck with any of them.
After you read this you must realize I'm a noob on this.
I have ICS 4.0.4 Stock Firmware from TELCEL, Mexico and I'm having no luck getting the custom ROM installed or at least downgrade I think it will be better. The main problem with the phone is the battery life and it's slow, all after the phone upgraded to ICS.
I will do anything you guys suggest if you could please point me in the right direction.
A few things I've tried:
I've Rooted the phone using Unlock Root application suggested by one of the post I found here.
I've Installed ROM Manager and flashed the CWM Recovery Touch tool and followed the instructions to use a Zip, I was trying with the Zeuz Gingerbread ROM I downloaded from here but after the phone reboots all I get is "LG logo saying SECURITY ERROR"
Anyone has gone through this issue?
BTW: after the LG Security Error I have to get into S/W Upgrade and run the LG Mobile Support Tool to let it flash the stock firmware again.
Moreno92 said:
I see there are a lot of articles saying how this should be done but at least in my case I haven't had luck with any of them.
After you read this you must realize I'm a noob on this.
I have ICS 4.0.4 Stock Firmware from TELCEL, Mexico and I'm having no luck getting the custom ROM installed or at least downgrade I think it will be better. The main problem with the phone is the battery life and it's slow, all after the phone upgraded to ICS.
I will do anything you guys suggest if you could please point me in the right direction.
A few things I've tried:
I've Rooted the phone using Unlock Root application suggested by one of the post I found here.
I've Installed ROM Manager and flashed the CWM Recovery Touch tool and followed the instructions to use a Zip, I was trying with the Zeuz Gingerbread ROM I downloaded from here but after the phone reboots all I get is "LG logo saying SECURITY ERROR"
Anyone has gone through this issue?
BTW: after the LG Security Error I have to get into S/W Upgrade and run the LG Mobile Support Tool to let it flash the stock firmware again.
Click to expand...
Click to collapse
The boot loader is locked. There are a number of tutorials on how to unlock it, but you need the original Froyo or Gingerbread ROM images from LG. Locating those seems to be the tough part. You downgrade to the earlier version, then you unlock.
Thanks for pointing me in the right direction
androcraze said:
The boot loader is locked. There are a number of tutorials on how to unlock it, but you need the original Froyo or Gingerbread ROM images from LG. Locating those seems to be the tough part. You downgrade to the earlier version, then you unlock.
Click to expand...
Click to collapse
Hey man thanks for your tip, after searching for the right problem I was able to unlock the bootloader and instal IZS ROM with no problems... I'll test it and try different rooms if this doesn't solves my issues.:good:
Here is the thread that helpemd me unlocking it without the need of Froyo or Gingerbread downgrade.
http://forum.xda-developers.com/showthread.php?t=1111771

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