Can I NANDROID restore from 4.2 to 4.1? - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

Hi, I recently helped my friend flash a 4.2 ROM and my friend doesn't know how to use it and says it's too complicated because it's not Touchwiz. So I said okay I'll flash you a 4.1 ROM instead. My question is, I'm just being safe and sure, is it okay if I Nandroid restore the 4.1 stock rom she had before I flashed the 4.2? Or does some stuff screw it up, or from what I also google searched; you have to flash the boot.img? & if I cannot restore, is it okay if I flash a 4.1 ROM but I'm on 4.2 now?
If anyone can help me answer this, it would be great because I'm not so sure, and I don't want to screw my friend's phone (I only use 4.2 and have no plans to downgrade lol)

Factory reset, wipe cache and dalvik restore backup. Wipe cache and dalvik, fix permissions. Reboot.
Sent From My Slim Samsung Galaxy S3 - Slim Bean 4.2.1

SolidSnake33 said:
Factory reset, wipe cache and dalvik restore backup. Wipe cache and dalvik, fix permissions. Reboot.
Sent From My Slim Samsung Galaxy S3 - Slim Bean 4.2.1
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just to confirm, so I can right? okay

I flashed a 4.1.1 Rom my first time, then went to a 4.2, then back to stock rooted, then back to 4.2, back to stock, back to 4.2........yes, you'll be fine and dandy.
Sent From My Slim Samsung Galaxy S3 - Slim Bean 4.2.1

Remember 4.2 ROKS create a folder called 0 that stores all your data so if you go back to and can't find stuff..its there
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Related

[Q] Installing Custom Roms on unlocked and rooted phone

So here is my given situation in hand.
1) I Unlocked and rooted my phone and upgraded to jelly bean from ICS.
2) Then later on installed Cyanogenmod rom (team shogun rufdroid)
3) While trying to upgrade. i screwed up and wiped and reinstalling the rom again and for some reason soft keys were missing so i had to wipe complete data and roll back to jelly bean 4.1.1.
4) Now how do i install custom roms now, coz if i use a g nex tool kit v9.1.it says my phone is already rooted and there seems to be a problem loading a bootloader.
I d appreciate if somebody can help me out with this..im still a novice ..trying to learn.
Damn it, don't use a toolkit.
Sent from my i9250
maddyreddy said:
So here is my given situation in hand.
1) I Unlocked and rooted my phone and upgraded to jelly bean from ICS.
2) Then later on installed Cyanogenmod rom (team shogun rufdroid)
3) While trying to upgrade. i screwed up and wiped and reinstalling the rom again and for some reason soft keys were missing so i had to wipe complete data and roll back to jelly bean 4.1.1.
4) Now how do i install custom roms now, coz if i use a g nex tool kit v9.1.it says my phone is already rooted and there seems to be a problem loading a bootloader.
I d appreciate if somebody can help me out with this..im still a novice ..trying to learn.
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Click to collapse
bk201doesntexist said:
Damn it, don't use a toolkit.
Sent from my i9250
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Click to collapse
QFT.
Use This
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OP read the stickies
http://forum.xda-developers.com/showthread.php?t=1626895
Sent from my i9250
why step 3? if you had an issue with the rom you flashed, why not just wipe data and redownload that rom and flash it again from your recovery. or wipe data and flash a different rom. wiping data doesnt remove your rom, and doesnt take you back to stock, and doesnt remove root access. it just removes user data.
root toolkits are the absolute worst things to use on nexus devices. they prevent you from learning the very easiest basic procedures. without knowing the basic procedures, you should not even consider modifying your device in any way. learn about what you are doing/what you want to do, then root your device.
maddyreddy said:
So here is my given situation in hand.
1) I Unlocked and rooted my phone and upgraded to jelly bean from ICS.
2) Then later on installed Cyanogenmod rom (team shogun rufdroid)
3) While trying to upgrade. i screwed up and wiped and reinstalling the rom again and for some reason soft keys were missing so i had to wipe complete data and roll back to jelly bean 4.1.1.
4) Now how do i install custom roms now, coz if i use a g nex tool kit v9.1.it says my phone is already rooted and there seems to be a problem loading a bootloader.
I d appreciate if somebody can help me out with this..im still a novice ..trying to learn.
Click to expand...
Click to collapse
Don't use a toolkit....download the ROM and GApps onto your phone directly....download a file explorer like Astro or ES and make a folder where you want to keep your stuff or just keep them in the downloads folder.....I prefer twrp but you can use CWM or w/e custom recovery you want...now it depends if your upgrading your current ROM with a newer version of your ROM or not....let's start with a complete clean flash....reboot into recovery and make sure you have a backup of at least your current data....if you do do a factory reset wipe system wipe cache wipe dalvik cache (this is all done in recovery mode)....go to previous menu and then go to install....install the ROM FIRST!!!!!!! then the GApps....(newer ROMs have GApps included so make sure you read everything before you install anything). Once you install the ROM and GApps you can go to restore and restore data only....clear the cache and dalvik again then go to advanced and then fix permissions....hit reboot and then reboot system.....now this is my process others might do it differently and you may as well once you get a little better at it.....now a dirty flash would be something like if you are just upgrading to a newer version of the same ROM..... You would download the ROM and GApps reboot recovery wipe cache and dalvik install newer version of ROM and GApps (if applicable on the GApps portion).....once installed clear cache and dalvik again then advanced and then fix permissions then reboot....for kernels you just have to clear the cache and the dalvik cache and then install the kernel unless otherwise indicated..... Good luck let me know what happens and if you have any problems let me know
Seriously, there's no need to wipe caches, when flashing kernels or roms!
Factory reset, or factory reset+format /system at best. Most roms will wipe /system on their own.
Sent from my i9250
No issues,my device is working fine now..I'm on rufdroid v0.92.
But I still had to use a tool kit to install recovery..I tried doing it on command prompt and it was confusing ..next time I'll try doing it with out these tools ....anyways thanks everybody.
Sent from my Galaxy Nexus using xda app-developers app

[Q] Flashing to another ROM

Hey I have a Samsung galaxy s3 I-747 and its currently on PAC-Man ROM with LH9 and I want to go to wicked v5's ROM p. I haven't gone back to stock in forever an I've been flashing new roms every now and then , I was wondering should I go to stock then flash wickeds ROM?
Tyler.Boston1 said:
Hey I have a Samsung galaxy s3 I-747 and its currently on PAC-Man ROM with LH9 and I want to go to wicked v5's ROM p. I haven't gone back to stock in forever an I've been flashing new roms every now and then , I was wondering should I go to stock then flash wickeds ROM?
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Click to collapse
No need; just remember to clear data and cache between ROMs.
smelenchuk said:
No need; just remember to clear data and cache between ROMs.
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Click to collapse
Oh alright. Thank you!
smelenchuk said:
No need; just remember to clear data and cache between ROMs.
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Click to collapse
While this is true, don't be surprised if you run into issues. A full wipe is usually suggested to best avoid any issues.
Dont really need to go back to stock. Just make sure to do a backup and then a full wipe and cache wipe and install

First time flashing 4.2 from 4.1 - order to flash zips?

Howdy y'all!
I'm currently running a 4.1.1 ROM, and would like to get on to MMuzzy's 4.2, but there are a ton of things I think I need to flash and want to make sure I get the order right. Your help will be much appreciated!
I am already using the latest version of TWRP.
I would like to flash the latest JB bootloader, and latest JB radios, but have never flashed either. Should I do these before flashing the ROM, or after? Should I do these before formatting cache? Should I format system or factory reset before flashing these, too?
I am planning to do factory reset, format cache and dalvik before flashing ROM, gapps and kernel. Do I need to do anything else to prep for flashing the ROM? Also, is it okay to flash all three at once, or should I do rom and gapps, let everything boot and restore from market, and only then flash kernel?
My main concern is the differences in file system between 4.1 and 4.2. I'm aware of the /0 subdirectory thing already, but I'd there anything else?
Thanks much!
Jamie
I wouldn't bother with the bootloader, but if you insist then you can flash the bootloader and the radios before or after. Doesn't matter.. Other than that, you do them ROM, gapps, kernel and I've done all three at once. Mmuzzy's is a good ROM. Enjoy.
First make a backup in TWRP
Factory reset
Wipe both caches
Install ROM, gapps, then kernel and reboot. (All at the sometime in that order)
I have heard its better to flash the kernel with the new ROM so just do it all in one flash.
Set everything up and let your phone sit for 15 minutes untouched and go for it.
Sent from my Galaxy Nexus using xda app-developers app
jrbedford said:
My main concern is the differences in file system tree between 4.1 and 4.2. I'm aware of the /0 subdirectory thing already, but I'd there anything else?
Thanks much!
Jamie
Click to expand...
Click to collapse
Just a small correction; file system change would mean switching from ext4 to f2fs, for example. That's not the case.
MartianCeo said:
First make a backup in TWRP
Factory reset
Wipe both caches
Install ROM, gapps, then kernel and reboot. (All at the sometime in that order)
I have heard its better to flash the kernel with the new ROM so just do it all in one flash.
Set everything up and let your phone sit for 15 minutes untouched and go for it.
Sent from my Galaxy Nexus using xda app-developers app
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Watch out with restoring backups. Don't restore app/system data. OP is switching major versions.
sent from my Google Galaxy Nexus

Can you flash a 4.1.2 [jb] rom from a 4.2.2 [jb] rom?

I am looking forward to flashing MIUI V5 on my AT&T Samsung Galaxy S3. It's a 4.1.2 ROM. I am currently using JellyBAM ROM V7.7.0 which is a 4.2.2 ROM. Can I flash MIUI V5 from JellyBAM? Will my phone end up toasted?
-Thanks for any help!
yes you can. when transitioning android versions you must do a full wipe including system and data before flashing. be sure you've made a backup and have all your personal data saved to your micro sd card, computer or both. from the guide:
In CWM:
Select Wipe data/factory reset
Select Wipe Cache
Select Advanced and Wipe Dalvik Cache
Select Mounts and Storage and format /system
If you are transitioning from 4.1 to 4.2 or 4.2 to 4.1, you must also format /data. You will lose all personal data so back it up first.
In TWRP:
Select Wipe
Select Factory Reset and wipe
Select System and wipe
If you are transitioning from 4.1 to 4.2 or 4.2 to 4.1, you must also select Data and wipe. You will lose all personal data so back it up first.
galaxys3world said:
I am looking forward to flashing MIUI V5 on my AT&T Samsung Galaxy S3. It's a 4.1.2 ROM. I am currently using JellyBAM ROM V7.7.0 which is a 4.2.2 ROM. Can I flash MIUI V5 from JellyBAM? Will my phone end up toasted?
-Thanks for any help!
Click to expand...
Click to collapse
If you flash the v5 in android development it's on 4.2.2
Sent from my Nexus 10 using xda premium

Downgrade from 4.3.1 to 4.3

I want to downgrade my Samsung Galaxy S3 w/ the AOKP (jb-mr2) 4.3.1 ROM installed back to the AOKP (jb-mr1) 4.3 ROM. Is this possible? If so, do I have to do anything different other than wiping my cache, dalvik cache, and data before flashing the AOKP jb-mr1 4.3 using CWRecovery? Thanks!
Nope, just wipe system, cache and dalvik cache, flash ROM and reboot
Sent from my SGH-M919 using Tapatalk
I think I read somewhere that it's usually ok to just do a wipe cache, dalvik, and system when doing updates or downgrades to an existing ROM on the phone.
You want to do a complete wipe, including the above wipes when changing ROMs (CM to Stock or vice versa) for example.
No matter what though, always do a Nandroid backup or Titanium before you do anything. You never know what can happen with that pesky Android!

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