[Q] How to go back to V20a from CM10.1 - LG Optimus 4X HD

As i said in the title, how can i go back to v20a( VietNam) from cm10.1. I didn't make a backup before flashing CM

You can use kdz flashing tool. But i think there is no way without loosing data.. Apps you can save with titanium backup for example but no system apps.

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[Q]Nandroid Backup

Hello guys,
I bought SGS1 a while ago and changed some roms it was annoying losing my apps then my friend told me to use titanium backup it was more annyong cuz i had to backup one program at a time
then i heard about Nandroid Backup , so my question is:
if i change ROM lets say from MIUI to Darky or something and i used Nandroid Backup, all my apps will be there after i restore?
Your phone will shift back exactly where it was when you nandroid backed up ! And any progress from their will be lost !
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BHuvan goyal said:
Your phone will shift back exactly where it was when you nandroid backed up ! And any progress from their will be lost !
Sent from my GT-I9000 using xda premium
Click to expand...
Click to collapse
So if I change rom from miui to brand new one and then i restore it will go back to miui? or it will just put my apps from miui on the brand new rom?
Its backup whole rom with apps...tge best possible solution is u have to use titanium backup pro it make a complete backup of apps....i thinkn u r using some free version pf titanium thats why i makes problem.
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Titanium Backup offers the option to backup all your apps at the same time, in case you didn't know. This may be only for the paid version though, I'm not sure. But considering it's the most useful app I've come across, it's definitely worth the money.
Menu > Batch
Disc0nectoR said:
So if I change rom from miui to brand new one and then i restore it will go back to miui? or it will just put my apps from miui on the brand new rom?
Click to expand...
Click to collapse
Actually if you try to restore a nandroid backup after switching to cm7/miui, your phone simply wont work as the file systems are completely different.
To go back to a Samsung ROM from miui you would need to flash a stock Samsung ROM via odin, and THEN restore the nandroid.
Anyway, beyond that remember the following...
Titanium backs up apps and app data, use after changing ROMs to regain apps.
Nandroid takes a snapshot of the entire ROM, use in case of problems to repair your phone.
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rschenck said:
Actually if you try to restore a nandroid backup after switching to cm7/miui, your phone simply wont work as the file systems are completely different.
To go back to a Samsung ROM from miui you would need to flash a stock Samsung ROM via odin, and THEN restore the nandroid.
Anyway, beyond that remember the following...
Titanium backs up apps and app data, use after changing ROMs to regain apps.
Nandroid takes a snapshot of the entire ROM, use in case of problems to repair your phone.
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Click to expand...
Click to collapse
Correctly said rschenck!!
Basically if you are on CM7 and want to give a try to MIUI just make a NANDROID backup for full ROM backup and try MIUI ,if you don't like it then flash back CM7 first and then restore the NANDROID backup!!
when it comes to Titaniuim backup , it backs up your app data,freezes them and the apps you want (only in pro version) on any ROM and restore back after flashing any other ROM, if you are on free version then you must select manually which apps to backup that's a pain in the ass !!
Use these according to your requirements....and dont ever restore one rom's nandroid with another as the Kernels,Filesystems,Modems,Bootloaders are entirely different and that could mess up your phone !!
i would prefer NANDROID over Titanuim !!
Thanks guys for this wonderful explanation...just one more query:
I'm currently using samsung Stock rom, CF root kernel, with lagfix(ext4), and some "framework" tweaks..and am thinking of trying CyanogenMod. So if i do a Nandroid backup now, and later decide to come back from cyanogenmod, can i just use Odin to get to ANY Stock rom so that the partitions, file systems, modem etc get back to a similar old format, OR do i need this exact Stock rom version, Kernel, lagfix etc before i can restore the nandroid?
is "kernel" included in a Nandroid backup? also, are Types of filesystems included (or "Lagfix" has to be repeated)?

NANDroid backup

what is a nandroid? how do you perform a NANDroid backup of your current ROM? im going to cm7 stable from kj1. just wondering cause it says in the steps to install cm7. thanks..sorry for the noob ques..
its making a complete backup of ur current rom settings,apps and all. with i897 gingerbread roms i dont think u can restore a nandroid backup. but u would normally do a backup in recovery with cwm.
yes, nandroid on i897 ginger roms do not work.
but the procedure would be to make a backup. then if you flash a different rom from what the backup was made from you would have to flash the rom back that was backed up THEN restore the nandroid and it will be like you never flashed away from that rom.
DO NOT EVER restore a nandroid to a set up it was not backed up on, it will bootloop.
studacris said:
DO NOT EVER restore a nandroid to a set up it was not backed up on, it will bootloop.
Click to expand...
Click to collapse
can you expound on that please...hahaha..sorry im reading it over and over..just need to clarify..what you mean? thanks btw guys for the reply..so basically nandroid backs up your rom..cause just the name sounded confusing..i mean why name it nandroid when they can just say in the intructions before flashing a rom to just "back up" your rom..haha..i thought nandroid was something else..cause i heard other people saying something about efs or whatever and backing it up but i dont even know what that is especially..thanks though for replies..got it..
Say you back up your current ROM, then flash another. You can't just restore ROM A onto ROM b. You have to flash back to ROM A and THEN restore the nandroid and it will be like you never flashed ROM b. All of you settings and everything will be intact.
Efs is totally different, that is a partition that contains your phones individual data, it's imei which you have to manually backup it's not included in a nandroid.
Components backed up by NANDroid
Which of these components does NANDROID back up?
- bootloaders?
- kernel?
- system apps and other apps?
- modems?
- other parts of the OS?
Thanks for sharing the knowledge.
The firmware and system settings.
No kernel
No bootloader
No modem
studacris said:
Say you back up your current ROM, then flash another. You can't just restore ROM A onto ROM b. You have to flash back to ROM A and THEN restore the nandroid and it will be like you never flashed ROM b. All of you settings and everything will be intact.
Efs is totally different, that is a partition that contains your phones individual data, it's imei which you have to manually backup it's not included in a nandroid.
Click to expand...
Click to collapse
Kindly clarify this please, i want to backup my stock rom before going custom.
So inorder to do a complete backup, we need to do a nandroid backup and also backup imei separately?? and then restore both of them when i flash back to stock??
ayush29k said:
Kindly clarify this please, i want to backup my stock rom before going custom.
So inorder to do a complete backup, we need to do a nandroid backup and also backup imei separately?? and then restore both of them when i flash back to stock??
Click to expand...
Click to collapse
They are two separate issues, really, but you are correct that you should back up both.
Nandroid lets you go back to a previous state, as long as you flash back to the correct ROM before you restore it. It will not let you restore data to your new installation, though. If you want to restore your applications in your new ROM, you can download Titanium Backup from the market which will let you batch save your applications now and restore them on your new ROM (It can also save and restore system data, but don't restore system data between ROMs, it causes all sorts of weird issues).
Backing up your EFS folder is something you should do, but hopefully will never have to restore. Your EFS folder contains information about your phone and should never actually get touched in any way when flashing ROMs. However, things go wrong and sometimes this folder ends up getting corrupted for whatever reason, which can lead to a corrupt IMEI code and no service. If this were to happen, you would restore you EFS from backup. I think it's safe to say most of us have never had to actually do this, but better safe than sorry. You can do a search for backing it up and find several threads about it.
Happy flashing!
lol...I was about to do nandroid backup! These post wre real helpful...thank you!
See this thread in the Development Forum for Corn Kernel... It has a working nandroid. BTW, that kernel is for i897 Gingerbread Roms.
Components backed up by nandroid
KarateKick said:
Which of these components does NANDROID back up?
- bootloaders?
- kernel?
- system apps and other apps?
- modems?
- other parts of the OS?
Thanks for sharing the knowledge.
Click to expand...
Click to collapse
studacris said:
The firmware and system settings.
No kernel
No bootloader
No modem
Click to expand...
Click to collapse
When I run a nandroid backup I see it processing these:
- boot image
- recovery image
- system
- data
- datadata
- .android_secure
- cache
- sd-ext
Can anyone explain some of these terms to me? I am pretty new to all this.
This thread has all the goodies defined pretty well http://forum.xda-developers.com/showthread.php?t=1093062
Guys , if I have two same model phones , one with alot of games and modded ROM and the other is standard , Can I take NANDroid backup from the first and restore in in the second ?
thanx in advanced
abdu_mka said:
Guys , if I have two same model phones , one with alot of games and modded ROM and the other is standard , Can I take NANDroid backup from the first and restore in in the second ?
thanx in advanced
Click to expand...
Click to collapse
You will need to first get it on the same modded ROM and then flash the backup. They will then be identicle
Hello,
This is the thread I was looking for. It just tackles top backup/restore issues I want to be positive of before tinkering around.
Now, what app is capable of doing a nandroid backup, if any? RomManager?
If a nandroid backup consists of the firmware and system settings but no kernel, bootloader or modem, how are these three backed up then?
My goal is making a stock unrooted (if possible) backup.
A concerning restoring, from this thread I understand that the restore process is composed of:
1st restore ROM A (which?)
2nd restore nandroid (which?)
3rd restore data/apps (Titanium is able to)
4th restore EFS folder (how?)
Please, correct/suggest. I appreciate.
Greetings,
galaxymny said:
Hello,
This is the thread I was looking for. It just tackles top backup/restore issues I want to be positive of before tinkering around.
Now, what app is capable of doing a nandroid backup, if any? RomManager?
If a nandroid backup consists of the firmware and system settings but no kernel, bootloader or modem, how are these three backed up then?
My goal is making a stock unrooted (if possible) backup.
A concerning restoring, from this thread I understand that the restore process is composed of:
1st restore ROM A (which?)
2nd restore nandroid (which?)
3rd restore data/apps (Titanium is able to)
4th restore EFS folder (how?)
Please, correct/suggest. I appreciate.
Greetings,
Click to expand...
Click to collapse
First of all, you have revived an old thread with now false information. A nandroid does include modem and kernel. Bootloaders can't be backed up, and there really wouldn't be a point in that. No app can do a backup, and please don't use ROM manager; it's obsolete. As for your steps: You probably only need to flash a ROM first if the partition table is being changed. Meaning you can't restore a Samsung ROM over an AOSP ROM. You won't need to use titanium backup because you will have restored the phone to the exact state it was when you took the backup. Meaning there won't be anything to restore. Efs? Don't touch it, we never will be deleting it.
Sent from my CM9 ICS i897 Captivate
Modems and kernels ARE NOT backed up in a Nandroid...
Hello,
@korockinout13: I don't think I'm providing false info. Actually, i've been gathering from the thread. I think there's some disagreement on what a nandroid backup really backs up from the views expressed in the thread. Plus, it's pure netiquette not opening new threads for a topic already started somewhere else in a forum. It's power ecology. No hard feelings, though.
Thank you and b-eock for your replies. I think I'd rather use cwm instead.
My goal is still the same: making a stock unrooted (if possible) backup as there are no roms available for my brand new Mini:
pda S5570XWKQG
phone S5570XWKQ5
csc S5570YOGKQ3
android version 2.3.4
Kernel 2.6.35
Thank you both!
b-eock said:
Modems and kernels ARE NOT backed up in a Nandroid...
Click to expand...
Click to collapse
Someone told me about the modem part, so I'm not really sure about that. But if it doesn't backup the kernel, why does restoring a nandroid put you back on the kernel you had previously (i.e. Glitch)?

[Q] Titanium Backups from Stock Roms work in Custom Roms?

Can a Titanium Backup from a stock rom be restored to a custom rom without any issues?
Thanks
Ya it will work, but just be carefull regarding system junk.
Betetr just restore user application, n avoid system data (red)

[Q] upgrade to rom ICS (titanium kackup)

hello everybody i have a question,if i would upgrade my darkyrom to a rom based on ics and if i would save all my apps and settings of these apps(for example savegame of emulator or data settings of poweramp),what steps do i have to do? backup of data+app or just backup of apps? or backup of only data? if i restore a backup of DATA in another rom with another firmware does it cause brick? thanks a lot for help
Your mileage may vary:
Restoring apps will probably be ok.
Restoring apps + data is flaky and you risk Forced Closures and other bad behaviours.
Make sure you make a nandroid backup of what you've got now, flash ICS, nandroid back it while it's still pristine, then restore apps via TB slowly and see what'll happen.
Another way is to reinstall the apps via Google Play account, after all, it has a record of everything you got from them. I know it can be a pain, but maybe you'll have a better gain. Clean install - clean app install
I hear you about app settings...try taking screen shots and storing on your microSD card/Dropbox/Google Drive...at least you have something to compare.
TLDR; risky restoring via apps + data via TB when going GB to ICS, sure thing is clean install and reinstall apps from Google Play.
I agree with this totally, nice idea about screen shots too
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What does a nandroid backup actually backup?

I currently have Stock rooted Gingerbread 2.3.5 on my phone. I want to install another ROM like CM or some other ROM on this phone. I DO NOT want to lose my text message history or my apps and their settings.
In other words if I install a ROM and something goes haywire I want the ability to completely restore my phone back from the state from when I backed it up. (Gingerbread 2.3.5 with root, all apps, settings, text history, etc.)
Will a nandroid backup do this and whats the fastest way to do so?
BTW I don't have CWM on here yet.....
Well I think you're a bit confused if you want the messages and call logs you will need a couple of apps from the appstore
1-Titanium Backup : very simple , it helps to backup your apps data (see tutorials to his correct use)
2-SMS backup and restore : it names says everything
3-Call logs back up and restore : same as above in fact same app dev
Well and after that you will have backed up your entire data now good flashing
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Now let me ask this: could i restore text message/sms history back to my device after the rom upgrade is complete?
mrnapolean1 said:
Now let me ask this: could i restore text message/sms history back to my device after the rom upgrade is complete?
Click to expand...
Click to collapse
Yes, if you back them up with Titanium Backup (or other backup app) before.
I will be using sms backup and restore.

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