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Can't flash a ROM, or restoring a Nandroid

Hello,
I can't flash any ROM. I have the ClockWorkMod recovery. When Flashing a ROM, for example Cyanogenmod, it flashes it in 10 secons, and when I reboot it gets stuck on the lg splash. When trying to restore my anandroid backup witch I made with the same CWM 4.0.0.5, I get an error: Can't mount /system!
What can i do? Do I need making partitions? Are there HBOOTS in lg optimus 2x?
Thanks

update cmw version to 5... that should fix your problem
Sent from my Optimus 2X using XDA App

Really thanks for your reply, but my problem is that i can't even flash a ROM or restoring my own backup I made. How can i update it?? Thanks very very much!

Flash ext4 converter from the recovery, and then flash the rom http://forum.xda-developers.com/showthread.php?t=1037751
And I am assuming the backup you are trying to restore is from a stock rom, then flash backtoext3 from recovery and then restore.
Both files are available from the same thread.
Sent from my Optimus 2X using xda premium

And also don't forget to update CWM to v5, install rom manager from market and flash the latest recovery
Sent from my Optimus 2X using xda premium

hisham027 said:
Flash ext4 converter from the recovery, and then flash the rom http://forum.xda-developers.com/showthread.php?t=1037751
And I am assuming the backup you are trying to restore is from a stock rom, then flash backtoext3 from recovery and then restore.
Both files are available from the same thread.
Sent from my Optimus 2X using xda premium
Click to expand...
Click to collapse
hisham027 said:
And also don't forget to update CWM to v5, install rom manager from market and flash the latest recovery
Sent from my Optimus 2X using xda premium
Click to expand...
Click to collapse
Ok, so really really thanks for your answer. the backup is from the original LG ROM...does that change something??
Thanks!

Yup, the stock rom is ext3 while cm7 is ext4. Its just two different filesystems.
Sent from my Optimus 2X using xda premium

So, the steps I have to follow are:
1. Flash ext4 converter
2. Flash a new ROM
3. Flash CWM 5.x.x.x with Rom Manager
And, whenever I want to restore my backup, I need to flash before the backtoext3 patch.
Is that right? Sorry for being so stupid!

rferrerca said:
So, the steps I have to follow are:
1. Flash ext4 converter
2. Flash a new ROM
3. Flash CWM 5.x.x.x with Rom Manager
And, whenever I want to restore my backup, I need to flash before the backtoext3 patch.
Is that right? Sorry for being so stupid!
Click to expand...
Click to collapse
You need to first wipe data, cache & go to advanced and wipe dalvik cache.
You need to flash backtoext3 only if the backup you are trying restore is from a stock rom or a rom which is using ext3 filesystem.
Sent from my Optimus 2X using xda premium

Ok, so finally I have successfully restored my backup. I flashed the ext3 patch and done. Now I have installed CWM 5.0.1.6 Is this recovery ok?
Now, before doing anything, I want to know what steps do I have to follow to install a ROM.
Even having this new recovery, do I have to flash the 4ext flasheable to install roms like Cyanogen, Thanatos, Miui...?
Thanks!

rferrerca said:
Ok, so finally I have successfully restored my backup. I flashed the ext3 patch and done. Now I have installed CWM 5.0.1.6 Is this recovery ok?
Now, before doing anything, I want to know what steps do I have to follow to install a ROM.
Even having this new recovery, do I have to flash the 4ext flasheable to install roms like Cyanogen, Thanatos, Miui...?
Thanks!
Click to expand...
Click to collapse
I am having v5.0.2.0, Check the rom manager if there is an update if not than that recovery should be fine.
To install a rom you need to wipe data, cache and dalvik cache. After that just flash the rom.
You don't need to flash ext4 zip, because ext4 based roms will automatically convert the system to ext4.
Sent from my Optimus 2X using xda premium

Thanks, normally, how long does it take to flash a Cyanogenmod nightly? It took me 20s...is that normal??

Just flashed CyanogenMod...AND WORKING!!! So good...Now...The best ROM for you? Thanks!

rferrerca said:
Thanks, normally, how long does it take to flash a Cyanogenmod nightly? It took me 20s...is that normal??
Click to expand...
Click to collapse
That's normal. For me the best rom is CM.
Sent from my Optimus 2X using xda premium

I think this thread should help you. An all in on place.
- Make sure that you read and understand complete instruction on the particular ROM developer's thread. Pay attention to the possible problems and solutions.
- Nandroid backup. Backup other user data and applications
- Make sure that you wipe/format the /system partition before flashing a ROM. I was not doing this untill recently. Ever since I started formatting /system partion, not getting SODs and BSODs like before
- The CWM you are using now is bit outdated. Look for the latest version - I think it is cwm-5.0.2.7-R2. Check out this link.

Divyan said:
I think this thread should help you. An all in on place.
- Make sure that you read and understand complete instruction on the particular ROM developer's thread. Pay attention to the possible problems and solutions.
- Nandroid backup. Backup other user data and applications
- Make sure that you wipe/format the /system partition before flashing a ROM. I was not doing this untill recently. Ever since I started formatting /system partion, not getting SODs and BSODs like before
- The CWM you are using now is bit outdated. Look for the latest version - I think it is cwm-5.0.2.7-R2. Check out this link.
Click to expand...
Click to collapse
Thanks divyan, but all problems I had are already solved. Whenever I need some help I will check that thread. Thank you
Sent from my iAndroid using XDA App

[Q] Major problem here!!!

1. I rooted my P990
2. I downloaded cyanogenmod 7.(something) and placed it in my internal storage (main folder).
3. Downloaded clockwork recovery and rebooted into recovery and chose something like install rom via internal SD.
4. So I installed, but it ended up with the machine rebooting with the cyanogenmod 7 logo on and then looping and if I try to enter recovery again then it shows software upgrade pleas wait (or something like it)
5. So how do I unbrick it?! Pleas help, HELP!

Hello!
Did you wipe the device before you installed CM7?
Try this...
Boot into recovery (press power and volume down until the LG-Logo changes and then release)...
Go to mounts and storage...
Format /system and /cache...
Go to advance and wipe dalvik cache.
Install CM7 (use one of the latest KANGS).
Install gapps...
Reboot.
Hope this helps.
More info and links in my last post of this thread...
http://forum.xda-developers.com/showthread.php?p=20409850#post20409850

Hold the powerkey a little bit longer and you should boot into recovery. I usually releases it when the second LG logo shows up
Wipe cache and reboot
Still stuck? Format data and cache, flash cm7 again (not really needed, but better safe than sorry)
Good luck
Sent from my LG Optimus 2x using XDA Premium App

Thank you so much!!!

I also encountered this kind of problem when I first flash my phone with cm7 latest nightly. I always ended up in bootloop.
My "own" solution was I flash a different baseband first using smartflash,then root my phone,install cwm recovery,full wipe including dalvic cache,flash cm7,flash gapps.. fortunately,its a success. From then, I enjoy flashing almost everyday but now i'm sticking with cm7 nightly build 204.. hope this helps..
Sent from my Optimus 2X using xda premium

nx-674 said:
Thank you so much!!!
Click to expand...
Click to collapse
So you fixed it?
Sent from my LG Optimus 2x using XDA Premium App

Works fine!
Worked excellently!
Thank you very much!
Sent from my LG Optimus 2x using cyanogenmod 7

[Q] a little help with flashing

Morning all, i am having a problem flashing any ROM via CWM. I have obtained root and my bootloader is unlocked (both the hidden menu and whilst in s/w download mode confirm this) also i have cwm recovery running with unsecure boot img, the problem is when i flash anything (from my external sd) all i get is bootloops! Is it possible i have missed something?
Thanks for your time guys!
Sent from my LG-P880 using Tapatalk 4 Beta

1. make a backup (on external SD)
2. wipe data/factory reset
3. wipe cache
4. advanced >> wipe dalvik cache
5. flash ROM

thanatos87 said:
Morning all, i am having a problem flashing any ROM via CWM. I have obtained root and my bootloader is unlocked (both the hidden menu and whilst in s/w download mode confirm this) also i have cwm recovery running with unsecure boot img, the problem is when i flash anything (from my external sd) all i get is bootloops! Is it possible i have missed something?
Thanks for your time guys!
Sent from my LG-P880 using Tapatalk 4 Beta
Click to expand...
Click to collapse
What about your CWM version? The latest is 6.0.3.1. Incorrect version results in disasters
Sent from my Optimusx4 using Tapatalk 2

@tomkasz forgot to say i do a complete data wipe before flashing! Didn't clear my dalvik before (thanks for pointing that out mate!) @hernest my current version is 6.0.2.8, so im guessing i need to update my recovery? If so can i just use the clockworkMod app from google play and do it that way?
Am i right in thinking that because im on v20a at the moment that i need to flash a JB ROM? Or can i flash an ICS without having to downgrade via KDZ first?
Thanks for your help guys!
Sent from my LG-P880 using Tapatalk 4 Beta

In order to flash ICS you have to use LG Flash Tool. There is a thread on xda showing how to do it step by step.
Sent from my LG-P880 using xda app-developers app

Sorry i meant can i flash an ICS based rom (via CWM) without having to downgrade via flashtool first?
Sent from my LG-P880 using Tapatalk 4 Beta

thanatos87 said:
Sorry i meant can i flash an ICS based rom (via CWM) without having to downgrade via flashtool first?
Sent from my LG-P880 using Tapatalk 4 Beta
Click to expand...
Click to collapse
There are no ics based roms for our device

thanatos87 said:
@tomkasz forgot to say i do a complete data wipe before flashing! Didn't clear my dalvik before (thanks for pointing that out mate!) @hernest my current version is 6.0.2.8, so im guessing i need to update my recovery? If so can i just use the clockworkMod app from google play and do it that way?
Am i right in thinking that because im on v20a at the moment that i need to flash a JB ROM? Or can i flash an ICS without having to downgrade via KDZ first?
Thanks for your help guys!
Sent from my LG-P880 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Your Recovery version is the culprit, then. Just install ROM Manager via Play Store and update your recovery to the latest version. Your life will be much easier in terms of flashing ROM.
To roll back to stock ICS from JB is quite a task and can't be done by simply flashing ICS based ROM. There's a thread on general section dedicated to this topic, you might want to do some research before doing so. Like the previous post said, there are no fully compatible ICS based custom ROM. Anyway, I think this device is much better in JB. Why would you revert back?
Sent from my LG-P880 using Tapatalk 2

[Q] how to downgrade from CM7.1 to stock rom 2.3.4?

Hi,
I used CWM to backup stock rom(2.3.4), then I used CWM to try CM7.1 nightly. Now, I would like to go back to 2.3.4. I restored the backup rom. The step i took was:
full wipe
format /system
install http://nigella.modaco.com/files/r2-backtoext3-2x-unsigned.zip
restore backup rom
reboot
After that, I rebooted. There is bootloop. Just wonder if anyone know why and how to solve this? thanks in advance!

When you get back to stock lg from cm you must format all ext3 before restoring. Search for Dr4go tools.
Sent from my LG-P990 using xda app-developers app

wals46 said:
When you get back to stock lg from cm you must format all ext3 before restoring. Search for Dr4go tools.
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
Thanks for your reply.
I tried to use r2-backtoext3-2x-unsigned.zip to restore it.
Can you tell me the correct procedure?
1. enter CWM mode.
2. install r2-backtoext3-2x-unsigned.zip
3. full wipe
4. format /system (i think i dont need this step, right??)
5. restore 2.3.4 backup
6. reboot
Is this correct?
Maybe i should try to use Dr4go instead ofr2- backtoext3-2x-unsigned? thanks

Very simple:
1. Cwm install ext3 zip file from Dr4go
2. Cwm restore your stock backup
3. Restart
Edit: this is the link to Dr4go tools
http://forum.xda-developers.com/showthread.php?t=1414440
Get the "old" file which means for the old bootloader.
Sent from my LG-P990 using xda app-developers app

wals46 said:
Very simple:
1. Cwm install ext3 zip file from Dr4go
2. Cwm restore your stock backup
3. Restart
Edit: this is the link to Dr4go tools
http://forum.xda-developers.com/showthread.php?t=1414440
Get the "old" file which means for the old bootloader.
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
thanks a lot for your detail reply, a bit busy this week, I will test it in this weekend.
In fact, I dont get the idea of old and new bootloader. I am confused if this refers to different file system ext3 vs ext4?
thanks

manhon said:
thanks a lot for your detail reply, a bit busy this week, I will test it in this weekend.
In fact, I dont get the idea of old and new bootloader. I am confused if this refers to different file system ext3 vs ext4?
thanks
Click to expand...
Click to collapse
The bootloader is the first program which starts the phone (or any computer), ext3 and ext4 are different data mgmt systems.
Your case is old bootloader, the new bootloader was introduced by LG with ICS roms. But this is another story.
Sent from my LG-P990 using xda app-developers app

[Solved] Recoveries not really working on CWM

Hi everyone!
I'm still a newbie arround here, so i will have to tell you all the steps i did until i got the problem.
So i did the following: I have stock rom (4.0.4) and BaseBand, i've rooted the phone using NVFlash method (using All-in-One Toolkit by SpyrosK) and i've replaced the Stock ICS BootLoader also using the AIO Toolkit. The phone was working great and all but after some weeks it started getting slow and i though about doing a factory recovery. So I tried the backup normally. Went to the menu then settings> backup and reset> factory data reset. After the reboot the normal LG logo showed and then the following: "Unfortunatly, the process com.android.phone has stopped" and behind this text box it has: "Encryptation unsuccessful
Encryptation was interrupted and can't complete. As a result, the data on your phone is no longer accessible. To resume using your phone, you must perform a factory reset[...]" and it has a reset phone button but i can't acess it because the text window is on top.
After I got this I tough about giving a try to CWM(v6.0.2.5) recovery. So i tried the following: wipe cache partition, wipe cache partition, wipe dalvik cache and fix permissions and tried the reboot but the same problem still persists...
Can anyone help me? This doesn't seem like a brick to me and it was supposed to be a factory reset but isn't correctly working. What can I do to fix this?
Tell me if you have any question or if you need a picture of the screen i get when i boot the phone. Than you very much.
Edit: Already tried to change my recovery image, still have the same problem...Was thinking in installing the stock rom again via CWM. Is it a good ideia? Will it fix?

In CWM there is a factory reset too (something like wipe data/factory reset). That should do the trick (but I'm afraid you'll have to set up from scratch again). Otherwise you'll have to wipe everything (including format /system) and flash the ROM again...
Sent from my LG-P990 using xda app-developers app

oneearleft said:
In CWM there is a factory reset too (something like wipe data/factory reset). That should do the trick (but I'm afraid you'll have to set up from scratch again). Otherwise you'll have to wipe everything (including format /system) and flash the ROM again...
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
Tried that wipe data/factory reset too. It did'nt work either. Maybe I'll go for the full wipe and try the stock rom again. Thank you for the help

I am sorry to hear. Why don't you try flashing another ROM, just to test? For example pengus' CM10 equivalent http://forum.xda-developers.com/showthread.php?t=2058231? It is very stable. Remember to update to last Kowalski kernel (by flashing after flash of ROM). May I suggest M1 norh (without ram hack)...
PS You need to be on new bootloader - see instructions in thread. If you have problems with the CM10 camera, you can flash CM10v3 by feav http://forum.xda-developers.com/showthread.php?t=2163473
Sent from my LG-P990 using xda app-developers app

Your partition is corrupt. Please reflash unlocked new Bl.
Thanks
Sent from my LG-P990 using xda app-developers app

Jishnu Sur said:
Your partition is corrupt. Please reflash unlocked new Bl.
Thanks
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
Tried that with AIO by SpyrosK . Still didn't work. But thanks for the suggestion!

oneearleft said:
I am sorry to hear. Why don't you try flashing another ROM, just to test? For example pengus' CM10 equivalent http://forum.xda-developers.com/showthread.php?t=2058231? It is very stable. Remember to update to last Kowalski kernel (by flashing after flash of ROM). May I suggest M1 norh (without ram hack)...
PS You need to be on new bootloader - see instructions in thread. If you have problems with the CM10 camera, you can flash CM10v3 by feav http://forum.xda-developers.com/showthread.php?t=2163473
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
Because I have no currently back up (coz of neglicence) I'll try a stock rom first. I'll give this a try after the stock rom. Thank you again :good:

Jishnu Sur said:
Your partition is corrupt. Please reflash unlocked new Bl.
Thanks
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
Was probably this! When i wrote the reply i tried using the option of replacing the Stock locked to the new one and this did not fixed.
So after i tried the option "Repartition your device with preferred layout and bootloader. Had to get another rom after and got the stock rom again, but i'll give a try to the one oneearleft suggested. Thank you very much. I've learned a lot with this!
Cheerz and keep up the good work!