This tutorial is for restoring nandroid backups - LG Optimus 2x

Hi Guys,
Im made this tutorial based on my personal experience, what pain i had to suffer for restoring my stock GB 2.3.4 nandroid backup, after messing up with CM7 and nvflash, i have consolidated all the thread in 1, i had tryed to make it simple to understand.
This tutorial is for restoring nandroid backups if u got in trouble while playing with custom roms and u want to go back to stock roms.
"Always make a nandroid backup of ur stock rom, before playing with custom roms"
Note :- Stock roms are based on EXT3 and Custom roms EXT4, here u get stuck when u try to restore nandroid of stock EXT3 to EXT4 partition.
1. Root ur stock roms with superoneclick. http://forum.xda-developers.com/showthread.php?t=953182
2. Install CWM recovery http://forum.xda-developers.com/showthread.php?t=953182 , or install Rom manager from Market, and install CWM from it.
3. Make a nandroid backup.
4. Install custom roms as ur likes and wish play with it, custom roms coverts ur partition form EXT3 to EXT4.
5. To convert back EXT4 to EXt3, use this link. http://forum.xda-developers.com/showthread.php?t=1021549
6. If u forgot to convert partition and try to restore nandroid u will get into boot loop LG screen stuck.
7. In boot loop u have only 1 option thats NVflash use this link http://forum.xda-developers.com/showthread.php?t=1007825.
8. After sucessfull nvflash stock, repeat step 1 and 2 as mentioned above.
9. After completing step 8, copy ur nandroid backup to ur SD card, now ur ready to restore ur stock nandroid backup boot into recovery restore.
Thanks for reading this

I think boot loop doesnt inevitably mean you have to nflash. For example, when having boot loop caused by installing EXT 3 rom to EXT4 partition, it is sufficient to pull battery and go to recovery(holding power plus vol down), then use back2ext3 etc.
Also, i have many bootloops, but never nflashed before.
Good turorial for beginners anyway.
Sent from my LG-P990 using Tapatalk

Related

[Q] KERNEL Backup/Restore.

Hello,
I need to know before install Overcome & CWM if it's possible to backup my stock KERNEL. Currently i have 2.6.36.3 kernel.
I think that is better to restore with the original kernel if need to use tha warranty one day ?
So is it possible to backup or download the stock KERNEL.
Thanks a lot for your help.
before you do anything get a nandroid backup and save that original nandroid backup.
Nandroid Backups are a full ROM backup, that means:
Radios
ROMs
Kernels
User Data
Trying to claim a warranty after you violate the terms and services isn't the most honest thing to but if you intent to cheat the warranty system that just hold on to your backup. A nandroid backs up everything
Hi,
Thanks a lot for your reply. For the warranty I am okay with you regarding the honesty.
About the Nandroid ROM backup, i read somewhere that full backup must be done but it backup all except the Kernel !
I am little bit lost :
1/ The KERNEL Backup can be done with Nandroid backup ?
2/ Can we make Nandroid backup with stock ROM & stock Kernel (fresh TAB) ?
3/ The CWM is it a Kernel ?
Thanks a lot.
subtil123 said:
Hi,
Thanks a lot for your reply. For the warranty I am okay with you regarding the honesty.
About the Nandroid ROM backup, i read somewhere that full backup must be done but it backup all except the Kernel !
I am little bit lost :
1/ The KERNEL Backup can be done with Nandroid backup ?
2/ Can we make Nandroid backup with stock ROM & stock Kernel (fresh TAB) ?
3/ The CWM is it a Kernel ?
Thanks a lot.
Click to expand...
Click to collapse
CWM stands for clockwordmod, its a custom recovery. You need a custom recovery before you can start changing things about your tablet. It is Not a kernel. Think of a car. A kernel is like eh engine, the recovery is like a toolbox. Its more complicated but thats the idea. The stock recovery is too limited, which is why we have custom ones
When you do a nandroid back up it backs up everything. When you do a nandroid back it backs up the kernel as well as the ROM all of your settings and app data. All in one.
If you want a stock nandroid Do it first thing after you have a custom recovery. A nandroid is saved in the clockwordmod folder. Then save that file somewhere safe. Flash drive computer t whatever.
Hope this helps
subtil123 said:
Hello,
I need to know before install Overcome & CWM if it's possible to backup my stock KERNEL. Currently i have 2.6.36.3 kernel.
I think that is better to restore with the original kernel if need to use tha warranty one day ?
So is it possible to backup or download the stock KERNEL.
Thanks a lot for your help.
Click to expand...
Click to collapse
Here is the Flashable zip for backup your Old recovery and kernel
First, You need root
From your stock recovery, Flash backupkernelrecovery.zip.
Approximately 30 seconds, backup process will make a folder "mybackups" in your SD card,
Reboot as normal, and Open "My Files" and see folder "mybackups"..
You'll find 2 file recovery.img(your stock recovery) and boot.img (stock kernel)
For Restore your recovery.img
download overcome cwm from alterbridge86 thread, unzip the file and replace recovery.img from that files with yours..zip again and flash from recovery, reboot and you got your old stock recovery..
Warning: Only restore Stock recovery after nandroid Restore done..with same firmware
Tested on my P7300 and works..
Hello All
Thanks a lot for your help.
I'm now on overcome 2.2.0 with Motley Kernel.
I just done a Nandroid Backup before. I also found on Net a file to restore all, Stock rom & Kernel.
Thanks again.

SGS I9000 stuck on splash screen

I have a SGS GT-I9000 rooted n a ICS ROM
but when i tried to restore my default ROM back with CWM it got stuck on boot splash screen.
I also tried flashing the same kernel again but it didnt worked.
And when i boot into recovery mode it gives me errors like
E:can't mount/cache/recovery/log
E:can't open/cache/recovery/log
E:unknown volume for path[/cache/recovery/last_log]
and so on......
any solution anybody????plss.......
Hi.
You can't restore your old gingerbread stock from ICS via nandroid.
You must flash the Stock ROM with Odin.
Befor that maybe you can flash the ICS kernel again and boot into ICS, then backup your clockworkmod folder via USB. After the Backup flash a stock ROM and cf-root or semaphore 2.5.0 via Odin.... after that load your clockworkmod folder to your internal SD-Card and boot into CWM. Now you can restore your Backup from gingerbread.
Sorry for my poor english. I hope you understand me.
// use the semaphore 0.8.1 kernel for ics. Than boot your phone and save the clockworkmod folder. When dosn't work, 1. flash the stock ROM 2. flash cf-root 3 boot in cwm go to restore and look for the backup... it must be in there
daggi78 said:
Hi.
You can't restore your old gingerbread stock from ICS via nandroid.
You must flash the Stock ROM with Odin.
Befor that maybe you can flash the ICS kernel again and boot into ICS, then backup your clockworkmod folder via USB. After the Backup flash a stock ROM and cf-root or semaphore 2.5.0 via Odin.... after that load your clockworkmod folder to your internal SD-Card and boot into CWM. Now you can restore your Backup from gingerbread.
Sorry for my poor english. I hope you understand me.
// use the semaphore 0.8.1 kernel for ics. Than boot your phone and save the clockworkmod folder. When dosn't work, 1. flash the stock ROM 2. flash cf-root 3 boot in cwm go to restore and look for the backup... it must be in there
Click to expand...
Click to collapse
Thanx mate thanx a lot
u saved my mobile from dying.
You're welcome.
my act is:
1. do a nandroid Backup of the system befor flash a new one.
2. Save the hole Backup folder on my PC and rename it like " system_old_date "
3. Flash the new system.
4. do a nandroid backup from the new system.
5. Save the hole Backup folder on my PC and rename it like " system_new_date "
With this 5 steps I'm always on the safe side.
i do the same but this time dont kno how but it went wrong and those errors poped out
Sent from my GT-I9100 using XDA App
I think:
The problem is ICS and Gingerbread are differnet systems, with different Kernels and paths.
When you start the restoreprocess the systemdata will be restored but not the kernel with CWM. Both systems have different paths, and so you get this error.
Please correct me if I'm wrong.
daggi78 said:
I think:
The problem is ICS and Gingerbread are differnet systems, with different Kernels and paths.
When you start the restoreprocess the systemdata will be restored but not the kernel with CWM. Both systems have different paths, and so you get this error.
Please correct me if I'm wrong.
Click to expand...
Click to collapse
may be ,but it didnt happned when i restored my SGS2 from CM9 to my rooted kernel
it only happned in my SGS
Sent from my GT-I9100 using XDA App
That's strange. Perhaps a developer knows why that is?
Reflash
Perhaps, the instruction to installing ICS states that you should have done a full wipe (data + partition) and installed the ROM/Kernal again. It would have worked...anyways you are back on GB, enjoy

Major help please

hi everyone
i start flash custom roms couple days ago, trying out "temasek's UNOFFICIAL BUILD RC1-94" everything work great, just some of the .apk was not working, so i decide to go back to stock roms, i thought it be simple process restore it backup, but adter it restore LG logo keep boot and restart. so i start reading found this thread i try it out, load it install this zip file,
http://forum.xda-developers.com/showthread.php?t=1021554
now i can't return to recovery menu, and it keep booting and restart, please what can i do now did i brick the phone, i'm so lost right now, please help thanks
after many try and ton of reading, i thought my is total brick, trying out smartflash method also get error when flashing, thank to this post from "75markus " i was able to restore back to 2.2 froyo
http://forum.xda-developers.com/showpost.php?p=25120132&postcount=6
Next time don't forget to flash Back2Ext3 before restoring stock backup
Durio said:
Next time don't forget to flash Back2Ext3 before restoring stock backup
Click to expand...
Click to collapse
Yes - that happened to me also. My first "bad" experience with flashing
from what i read CM7 running ext4, stock runing ext3 right?
so now i'm back with stock running froyo, i still have my backup files on with sd card. Do i root and install rom manager then install Back2Ext3, and final running restore? will this restore back to my original state since i backup using cwm to backup.
thank guy
yes, cm7 uses ext4 system mount. i just use a zip file which i flash from recovery if i need to get back to ext3.
here it is btw if you are on stock froyo and want to restore stock gingerbread (if i understood you right) you dont need to use back to ext3 again, just restore your back up.
phihung07 said:
hi everyone
i start flash custom roms couple days ago, trying out "temasek's UNOFFICIAL BUILD RC1-94" everything work great, just some of the .apk was not working, so i decide to go back to stock roms, i thought it be simple process restore it backup, but adter it restore LG logo keep boot and restart. so i start reading found this thread i try it out, load it install this zip file,
http://forum.xda-developers.com/showthread.php?t=1021554
now i can't return to recovery menu, and it keep booting and restart, please what can i do now did i brick the phone, i'm so lost right now, please help thanks
Click to expand...
Click to collapse
Restore stock backup from CM needs to flash an ext4-backto-ext3 zip with cwm, what a pity you overwrite cwm with stock recovery.
Now you should try to rescue your phone with SmartFlash, finally consider nvflash method.
xilw3r said:
yes, cm7 uses ext4 system mount. i just use a zip file which i flash from recovery if i need to get back to ext3.
here it is btw if you are on stock froyo and want to restore stock gingerbread (if i understood you right) you dont need to use back to ext3 again, just restore your back up.
Click to expand...
Click to collapse
well i notice the froyo firmware is way faster than the GB i have, no lagg at all battery is really good, is there any GB stock rom run smooth without bloatware.... (like international version)
phihung07 said:
well i notice the froyo firmware is way faster than the GB i have, no lagg at all battery is really good, is there any GB stock rom run smooth without bloatware.... (like international version)
Click to expand...
Click to collapse
If you mind, try Django Manouche, Custom but stock based ROM http://forum.xda-developers.com/showthread.php?t=1410662 . I tried many CM and MIUI roms but always ended restoring Django back

Can recover with CWM recovery but no boot afterwards

I installed the NOVA HD software with CWM Recovery. Just to try it. I made a full backup of my original GB with CWM Recovery. When I wanted to go back to my original gb rom I wiped all memory and then I did recover my backup. But after full recovery and a reset the phone got stuck on the startup logo. So again a full wipe and then NOVA HD ROM on it. All went well, and the phone booted normally into ICS. After that NO wipe and recover original GB backup. The logo came. Then the original splash screen also. And then nothing again.
What am I missing here? What should I do to get my backup of the original GB rom back on my phone with CWM Recovery?
Perhaps a file system format problem ? What version of CWM do you use? Touch 6 version has problems with ext3.
Find and try backtoext3 zip to force ext3 on all partitions, before restoring. And depending what version of CWM you use try the Non Touch 6 CWM (see thread about new 6.x CWM first post).
Striatum_bdr said:
Perhaps a file system format problem ? What version of CWM do you use? Touch 6 version has problems with ext3.
Find and try backtoext3 zip to force ext3 on all partitions, before restoring. And depending what version of CWM you use try the Non Touch 6 CWM (see thread about new 6.x CWM first post).
Click to expand...
Click to collapse
I do use the none touch version because I heard about the problems with the touch version. I use version 5.0.2.0.
erwinhermans said:
I do use the none touch version because I heard about the problems with the touch version. I use version 5.0.2.0.
Click to expand...
Click to collapse
Strange so.... Try back2ext3 anyway.
Try to flash cm7 or other GB rom. And after that restore your backup. Might even try with a stock GB.
working
hey if u dont want to root ur phone then go with smartflash .The below link is give u a original rom and installing method .BUT BE SURE IT WILL WIPE UR ALL INTERNAL DATA u must backup all data first .
http://forum.xda-developers.com/show....php?t=1035041
in this u find the 2 files
1 fls file which is baseband file put it in cp bin
2 bin file which is ur orignal rom put it in ap bin
NOTE-- if ur fail in first 1 or 2 attempts then dont worry repeat it for several times. This will put ur device on stock rom and unroot
All thanks for your replys. I think I will give CM7 a try. And then trying to get the backup back.
But maybe I will stay on this Nova HD rom. It is very quick. I have it installed now for two weeks and don't have any problems with it besides the headsetbutton and videocam issues. I like the quick startup of the normal cam function though. And I use holo launcher which is for me the snappiest and lowest memory consuming launcher.

[Q] I need some help to get back to Ultimate XXLSZ

I was using Ultimate ROM XXLSZ_JB_4.1.2_v5.2 without any problems apart from poor battery performance.
However, I attempted to install Rocket ROM-V1-XXLSZ and have now got myself into trouble.
I followed the instructions to flash the latest XXLSZ-OXA cwm kernel and then flashed the Rocket ROM. It worked ok but I would like to return to the Ultimate ROM and kernel I had before.
I have a pevious full Nandroid backup of the phone (made with ROM Manager Premium) of the Ultimate ROM and the PhilZ kernel it came with but cannot restore it. I get the error "MD5 Mismatch" and the restore aborts.
Even if I reflash the original Ultimate ROM with all the usual wipes, the XXLSZ-OXA cwm kernel is still there and I still can't restore from the Nandroid backup. I tried re-flashing PhilZ 3.1 kernel separately and then the Ultimate ROM file but this didn't work either. The kernel is still the same.
Can anyone tell me how to either
1. completely wipe the phone so I can install Ultimate ROM AND the built-in PhilZ 3.1 kernel.
OR
2. get the phone to the point where I can restore from my Nandroid backup which I assume will restore the earlier version of the ROM at the same time.
I hope I've explained the situation clearly enough.
Thanks in advance.
Trevor
Install a cm kernel then wipe your phone then install a fresh ultimate rom and later on advance restore the data
Sent from my GT-N7000 using Tapatalk 2
Go to cwm/backup and restore/misc nandroid setting/ untick md5 check. And try to restore again
Sent from my GT-N7000 using xda premium
You don't want to restore your nandroid. It is a bad backup.
In philz recovery go to mounts and storage. Format system data preload cache. Them go to advanced from main page and wipe dalvik
Flash ROM. Guaranteed to work.
Sent from my Samsung Galaxy SV using Tapatalk 3
Thanks. I know I can flash the ROM again but I was hoping to learn why the Nandroid backup no longer works.
Since posting, I gave up trying to restore the Nandroid backup, did all the usual wipes, re-flashed the Ultimate ROM and re-installed all my apps from scratch so my phone is more or less back to normal (Incidentally, I notice that no matter how many times I do this, all my music and photos are still there even though they're stored on the internal sd card. Dunno why).
Most of the ROMs I've tried have the kernel built in so all I needed to do was do the usual wipes and then flash. If I didn't like the ROM, I just wiped again and restored the Nandroid backup using CWM (Vol Up + Menu + Power) and the phone was back to its previous state.
The only thing I did different this time, as per the Rocket ROM instructions, was flash a kernel first. I may have done something wrong with that step or messed it up somehow. Even when I flashed an earlier version of the PhilZ kernel, the restore still didn't work. I've still a lot to learn about ROMs and Kernels, I guess.
As I said, I have successfully restored from Nandroid backups many times before this without any problem after experimenting with different custom ROMs. Can I ask you why Nandroid is a bad backup? Is it a problem with ROM Manager?
(One problem I've always had with ROM Manager is that if I choose to write the backup to the external sd card, it falls over with error messages. If I choose the option to backup to the internal card, it works but writes the BACKUP TO THE EXT CARD ANYWAY! I cannot get a reply from the dev about this).
Is there a better, more reliable backup method you'd recommend that does the same thing as the Nandroid?
I notice that different ROM managers use different CWM Recovery versions ie ROM Manager Reboot Recovery = 6.0.1.2, ROM Toolbox Rebooter = CWM 6.0.2.8 (same as Vol Up + Menu + Power). Could that be part of the problem?
Sorry for the long winded post.
Trevor
asf58967 said:
You don't want to restore your nandroid. It is a bad backup.
In philz recovery go to mounts and storage. Format system data preload cache. Them go to advanced from main page and wipe dalvik
Flash ROM. Guaranteed to work.
Sent from my Samsung Galaxy SV using Tapatalk 3
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