Can you reverse flashing a recovery image? - myTouch 4G Q&A, Help & Troubleshooting

Hi Guys,
I'm a little new to all this so please bear with me..
Just rooted my MT4g and want to make a nandroid backup before i do anything. However i see that i need to use CWM to flash a custom recovery image in order to make the backup.
Is there anyway to reverse that recovery image back to stock? Incase i need to revert the phone completely back to stock...
Thanks.

Sorry, i think i found it!
I'm guessing this is it: http://forum.xda-developers.com/showthread.php?t=843289
Please close this thread if that's it.. sorry for spamming.

If you completed the root process then you already have CwM recovery. Just use Rom Manager to make a backup. If you have to revert back to stock the process will reinstall the stock recovery img for you.
shortskoolbus said:
Hi Guys,
I'm a little new to all this so please bear with me..
Just rooted my MT4g and want to make a nandroid backup before i do anything. However i see that i need to use CWM to flash a custom recovery image in order to make the backup.
Is there anyway to reverse that recovery image back to stock? Incase i need to revert the phone completely back to stock...
Thanks.
Click to expand...
Click to collapse

Hmm okay. I did successfully root the device and I was following this write up to backup the phone using nandroid which says i need to flash a custom recovery ROM.
I just tried to backup current ROM and it gives me a message saying i must flash CwM recovery first and gives me an option to install it. But i'm guessing it's possible to restore that from the link in my second post?

You can use clockwork to restore your factory rom, but if you want to revert your recovery back to stock you will need to fastboot flash the stock recovery back on. This is assuming you have first flashed the stock rom which will leave you without clockwork rom manager installed. There's a few unroot guides that will help you if you need to send your phone back to tmo. I would suggest becoming familiar with ADB and Fastboot. That knowledge will give you more options in a pinch.
Swyped on my rooted MyTouch4G

Thanks much!
Yes i am doing a lot of reading right now, but wanted to make sure all the files i needed were out there for the MT4G already. Looks like the factory recovery is out there and it can be flashed back so i'm not to worried.

shortskoolbus said:
Thanks much!
Yes i am doing a lot of reading right now, but wanted to make sure all the files i needed were out there for the MT4G already. Looks like the factory recovery is out there and it can be flashed back so i'm not to worried.
Click to expand...
Click to collapse
Yes all the files are out there that you would need to pretty much do whatever needed. Check out the links in my sig for some good things.

Related

Naive question: backup complete phone before rooting/flashing?

I'm just starting to read up on how to root and flash my phone and also how to go back to stock if necessary. If you haven't rooted your phone yet, is there any method to fully backup the phone so that returning to stock is easier?
Thanks!
Use the backup function in the recovery or use an app like MyBackUpPro full version.
Questions should go in the questions section.
Backup option in recovery for sure. This backs up your whole phone state. Apps, settings, icons...everything. For an extra safety measure you can use something like Titanium Backup to backup apps and system settings. This is good for switching roms.
you can use the backup from ROM Manager and if you really need to you can always follow the unroot procedure and that gets you back to the out of the box feel
Thank guys. Sorry for posting in the wrong forum, I thought ROM/flashing questions belonged here...
To backup from recovery or ROM manager you need to first flash over the stock recovery image with ClockworkMod Recovery, correct? I was wondering if there's any full backup that will also backup the recovery image prior to doing this, for an easy return to fully stock phone. I'm guessing the answer is no. Correct?
Thanks!
tmagritte said:
Thank guys. Sorry for posting in the wrong forum, I thought ROM/flashing questions belonged here...
To backup from recovery or ROM manager you need to first flash over the stock recovery image with ClockworkMod Recovery, correct? I was wondering if there's any full backup that will also backup the recovery image prior to doing this, for an easy return to fully stock phone. I'm guessing the answer is no. Correct?
Thanks!
Click to expand...
Click to collapse
Once you have rooted the phone, and turned s=off you can flash Clockwork Recovery image to do back ups.
IF you are needed to go to a 100% stock fashion for what ever reason. you can do that. All you need to do is download the PD15IMG which can be found in the development section. Store it to the SDcard and boot the phone into boot-loader. That will replace EVERYTHING and put it back to a 100% factory spec. and no they cannot tell it's been rooted once the PD15IMG has been flashed.
Thanks for the info. That about covers it.

[Q] So..I have a problem with going back to my factory rom

I need to make a warranty exchange, but if I send my phone in, and they see its rooted, Im going to get an out of warranty fee.
Its not letting me recover to my back up. Im completely lost as to what to do. I need to make it look like Ive never rooted my phone at all
You don't really expect to get much help with so little information, do you? What recovery and ROM do you have installed? How are you trying to go back to stock, a nandroid backup?
Sorry. Guess thats kind of important. lol
Recovery: 3.0.0.5
themed ice glacier 1.1.4
And form what the person who rooted my phone told me, that I now cant get a hold of, I just install from backup that he had originally made, when he flashed the rom. Sorry. I know Im a noob. Been extremely busy to actually learn. Go figure the guy whos been helping me, hasnt been answering his phone
CWM 3.0.0.5 can only flash Gingerbread ROMs, and the stock image you're trying to restore is a Froyo ROM. All you need to do is switch to CWM 3.0.0.6 and you can successfully revert back to stock.
1. Go here to install this CWM version, which will allow you to flash 3.0.0.6 and older CWM, which you need to go back to stock nandroid restore (http://forum.xda-developers.com/showthread.php?t=944681).
2. Go here for how to restore stock nandroid (http://forum.xda-developers.com/showthread.php?t=845756). Make sure you flash older CWM recovery when restoring stock nandroid. After restoring, you can follow thread and instructions to turn S-on again.
NeverAlwaysEver said:
1. Go here to install this CWM version, which will allow you to flash 3.0.0.6 and older CWM, which you need to go back to stock nandroid restore (http://forum.xda-developers.com/showthread.php?t=944681).
2. Go here for how to restore stock nandroid (http://forum.xda-developers.com/showthread.php?t=845756). Make sure you flash older CWM recovery when restoring stock nandroid. After restoring, you can follow thread and instructions to turn S-on again.
Click to expand...
Click to collapse
You do not need to use any recovery other than 3.0.0.6 to restore the stock nandroid image.
Awesome. Thanks man. Time to go bleed magenta. Hahaha
Sent from my HTC Glacier using XDA App

brick Nexus S

Hello. i am new to the android family
i have a nexus s GT-9020T
i have rooted my phone but without setting the clockworkmod reovery.
today i was playing with the rom manager and downloaded one of the rom from the list. after installation i was unable to start the phone only seeing the google logo with the unlock logo.
i went back into the recovery by typing flash recovery recovery.img etc.
run a restore and restart the phone but still not work
my nexus s is 2.3.4 by the way.
please assist
What "restore" did you run?
Go here: http://forum.xda-developers.com/showthread.php?t=1056062
And download the full rom:
Model: i9020T
Full Rom: GRJ22, KD1
That'll revert your Nexus S to the latest completely stock 2.3.4
Then you can flash recovery again and go back to clockwork mod and go flash another rom or whatever.
Remember when you're flashing a new rom you need to wipe data and cache and dalvik cache.
i run an restore from the backup that i made before installing the new rom using clockwork mod recovery, its part of the option when installing the rom using the rom manager * click box - backup * etc something like that
sheunghko said:
i run an restore from the backup that i made before installing the new rom using clockwork mod recovery, its part of the option when installing the rom using the rom manager * click box - backup * etc something like that
Click to expand...
Click to collapse
Next time don't use Rom Manager to make backups or flash roms. It's stupid and can get you issues like you're having.
Anyways, try wiping data and cache then restoring the backup, do it in Clockwork Recovery.
Let it boot, first boot always takes a while, 5-10 minutes. If you see the boot animation freeze, stop and restart, then yeah it's screwed up, otherwise, just let it is.
If still not working from your backup, do what I said in previous reply, just restore to stock 2.3.4 then re flash clockwork mod and start over with the rom you want to flash.
thank your nxt. i have found the real problem. it was not my backup problem or the rom that u provided. it was the version of my clockwork mod recovery. i was using an 2.x.x.x to restore the phone which is why it doesn't work. everything work fine now after i flashed with an 3.x.x.x and restore the phone. one question thou, where can i always find the newest clockwork mod recovery release ? thank you very much
sheunghko said:
thank your nxt. i have found the real problem. it was not my backup problem or the rom that u provided. it was the version of my clockwork mod recovery. i was using an 2.x.x.x to restore the phone which is why it doesn't work. everything work fine now after i flashed with an 3.x.x.x and restore the phone. one question thou, where can i always find the newest clockwork mod recovery release ? thank you very much
Click to expand...
Click to collapse
http://mirrorbrain.cyanogenmod.com/cm/recoveries/
Or just use ROM Manager to get the latest.
That's the only thing I use ROM Manager for... getting the latest Recovery.
thanks again nxt. if you don't mind really ...i have one more question. i know the phone intend to uninstall clockwork mod recovery once its restarted. i know there is command type into the cmd to avoid the phone uninstall the clockworkmod reovery and make it permanent in another word. I didn't run those command when i root my phone because i don't know if its good to make it permanent like.... hmmm like if there will be a 2.3.5 coming next month..just saying ok... with a permanent unofficial recovery will cause a problem?
sheunghko said:
thanks again nxt. if you don't mind really ...i have one more question. i know the phone intend to uninstall clockwork mod recovery once its restarted. i know there is command type into the cmd to avoid the phone uninstall the clockworkmod reovery and make it permanent in another word. I didn't run those command when i root my phone because i don't know if its good to make it permanent like.... hmmm like if there will be a 2.3.5 coming next month..just saying ok... with a permanent unofficial recovery will cause a problem?
Click to expand...
Click to collapse
Are you running custom ROM? If you are, it's already made to not revert back to stock recovery. If you leave it stock recovery you'll get notifications for firmware updates by Google, but remember that applying those to a rooted phone might screw things up too.
the blue one is stock recovery right?
sheunghko said:
the blue one is stock recovery right?
Click to expand...
Click to collapse
Don't remember. It should only have like 3-4 options.
thanks again nxt. no i am not running an custom rom. i mean not yet. i planed to try one from the rom manager download section then my phone couldn't start after installation and now i have restored my phone from my backup using the clockwork mod recovery 3.x.x.x.

How to make a backup of the kernel of the stock rom that came with my G2 D802?

I want to make a backup of the original kernel that came with my G2 D802 32GB just in case I need it in the future if I mess up something.
I read that flashify can make a backup of the kernel, but also read this program can brick the G2.
Any other ways to backup the kernel of my original stock LG rom?
And how to restore it in the future if I need to do so?
Thanks a lot!
Sensamic said:
I want to make a backup of the original kernel that came with my G2 D802 32GB just in case I need it in the future if I mess up something.
I read that flashify can make a backup of the kernel, but also read this program can brick the G2.
Any other ways to backup the kernel of my original stock LG rom?
And how to restore it in the future if I need to do so?
Thanks a lot!
Click to expand...
Click to collapse
If you're rooted and have flashed twrp recovery all you have to do is back up the boot partition then you have a back up all you need to do is if you want it back just boot into recovery and restore the boot partition it's not really having a flashable kernel zip but it's one way
Robshr said:
If you're rooted and have flashed twrp recovery all you have to do is back up the boot partition then you have a back up all you need to do is if you want it back just boot into recovery and restore the boot partition it's not really having a flashable kernel zip but it's one way
Click to expand...
Click to collapse
¡Perfect! ¡Thanks a lot! :good:
EDIT:
Two questions though.
Using that method, if I restore the boot then I would lose my custom recovery right?
Also, I've read that doing backups through TWRP or CWM doesn't backup the kernel installed at that moment. Is this true? Because if it's true then doing that backup wouldn't make a backup of the kernel.
Thanks!
Sensamic said:
EDIT:
Two questions though.
Using that method, if I restore the boot then I would lose my custom recovery right?
Also, I've read that doing backups through TWRP or CWM doesn't backup the kernel installed at that moment. Is this true? Because if it's true then doing that backup wouldn't make a backup of the kernel.
Thanks!
Click to expand...
Click to collapse
First question the answer is no you won't lose your recovery and to answer the second question I know with twrp it does back up the kernel I do it with every custom ROM I flash I'll back up its kernel before I install a custom one just so i have it and decide to go back to it now with cwm I'm not sure I only used cwm for a short period of time and wasn't happy with it I prefer twrp

Backup fully an unrooted OnePlus 5

After a long research for finding a full backup method for an unrooted OnePlus 5 android, I'm now asking if anybody can help.
I have tried using ADB.
Code:
adb backup -apk -shared -all -obb -system -f "C:\backup.ab"
adb restore "C:\backup.ab"
Here I have to
But it does not restore everything. So I don't fully trust ADB.
Then I thought, what about backup the partitions to image files, and later be able to restore them via fastboot or something.
So my question is,
can you make a backup using "fastboot", to an image just like a rom with personal data.
Or if this is not possible, then can you use linux tool dd to make image backup of my Phone?.
If there is nothing left, but to root? Then I have seen a lot of tools, apps and windows utilities to make a backup.
But what do you recommend I use?
Easiest and safest would be to just do a nandroid from a custom recovery. If I am not wrong, this works also unrooted if you flash the recovery via usb.
chrismast said:
Easiest and safest would be to just do a nandroid from a custom recovery. If I am not wrong, this works also unrooted if you flash the recovery via usb.
Click to expand...
Click to collapse
yes but you still need to have unlocked the phone
B0unze said:
yes but you still need to have unlocked the phone
Click to expand...
Click to collapse
Also any custom recovery requires you to root (SuperSU or Magisk) because as soon as you boot to the system the custom recovery will be automatically be replaced with the stock recovery. So in effect to create a nandroid backup means being unlocked, having a custom recovery and flashing a root solution. You don't need to alter the ROM any more than that though.
egominus said:
After a long research for finding a full backup method for an unrooted OnePlus 5 android, I'm now asking if anybody can help.
I have tried using ADB.
Here I have to
But it does not restore everything. So I don't fully trust ADB.
Then I thought, what about backup the partitions to image files, and later be able to restore them via fastboot or something.
So my question is,
can you make a backup using "fastboot", to an image just like a rom with personal data.
Or if this is not possible, then can you use linux tool dd to make image backup of my Phone?.
If there is nothing left, but to root? Then I have seen a lot of tools, apps and windows utilities to make a backup.
But what do you recommend I use?
Click to expand...
Click to collapse
What do you mean by it does not restore everything? I'm planning to root my phone but want to create a nandroid backup first
BenSow said:
What do you mean by it does not restore everything? I'm planning to root my phone but want to create a nandroid backup first
Click to expand...
Click to collapse
I have trouble backup with ADB, sometimes it hangs. And according to this link https://forum.xda-developers.com/galaxy-nexus/general/guide-phone-backup-unlock-root-t1420351 it does not backup everything like SMS and Call Logs. And pictures can have problems.
I also have problems with ADB hangs, and does not finish.
chrismast said:
Easiest and safest would be to just do a nandroid from a custom recovery. If I am not wrong, this works also unrooted if you flash the recovery via usb.
Click to expand...
Click to collapse
So now I'm a little confused? Because you say I can boot into nandroid from a custom recovery.
What do I need to boot into custom recovery?
Do I need to unlock phone? Because this will wipe my phone, and would rather not.
Can I boot into custom recovery directly from image, without flash anything?
If I need to flash custom recovery, then do I need to root my phone?
egominus said:
Do I need to unlock phone? Because this will wipe my phone, and would rather not.
Can I boot into custom recovery directly from image, without flash anything?
If I need to flash custom recovery, then do I need to root my phone?
Click to expand...
Click to collapse
I think I have the answer my own questions. But please correct me or tell me if it's the right direction.
According to this link https://aubykhan.wordpress.com/2013/07/21/android-tip-boot-into-twrp-or-cwm-recovery-without-flashing/ I can boot into custom recovery. But I need to Unlock my phone first. But the question remains, can I make nandroid backup without root, because here http://trendblog.net/android-guide-make-nandroid-backup-android-phone/ it says I need root?
egominus said:
I think I have the answer my own questions. But please correct me or tell me if it's the right direction.
According to this link https://aubykhan.wordpress.com/2013...t-into-twrp-or-cwm-recovery-without-flashing/ I can boot into custom recovery. But I need to Unlock my phone first. But the question remains, can I make nandroid backup without root, because here http://trendblog.net/android-guide-make-nandroid-backup-android-phone/ it says I need root?
Click to expand...
Click to collapse
Yes, you will need an unlocked phone.
To my understanding you can then flash a custom recovery via usb whereas after reboot of phone it will be reset. This allows you though to boot into custom recovery and do a quick nandroid. Again I might be wrong, I thought you do not need root for this process but maybe someone can correct me.
Ur probably just going to need to hook it up to a computer and take everything off then just spend some free time logging back into each app. The only way i know without doing this is an app called Huawei Backup. It keeps all settings and logins for each app. If you can somehow find a way to install it on a one plus device you would be okay. Try an older version or inject it somehow.

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