Guys,I got 2 Nexus 7 2012 3G version.
The Nexus 7 with Android 4.2.2 have locked bootloader while the other one with Android 4.4.2 unlocked bootloader
I want to restore the 4.4.2 unlocked bootloader ROM using TWRP on the 4.2.2 Locked bootloader.
That's mean I want the 2 N7 with the same ROM (4.4.2) & apps.
Is it possible ?
And will my data lose ?
Sent from my Nexus 7 using XDA Premium 4 mobile app
Ben Ling said:
Guys,I got 2 Nexus 7 2012 3G version.
The Nexus 7 with Android 4.2.2 have locked bootloader while the other one with Android 4.4.2 unlocked bootloader
I want to restore the 4.4.2 unlocked bootloader ROM using TWRP on the 4.2.2 Locked bootloader.
That's mean I want the 2 N7 with the same ROM (4.4.2) & apps.
Is it possible ?
And will my data lose ?
Click to expand...
Click to collapse
Sound very possible indeed.
I think you need to do this (if I understand you right): (I'll call the N7 with 4.2.2 "N7-1" and the one with 4.4.2 "N7-2")
1) You need to unlock the bootloader on the N7-1 - this will possibly wipe your data off this device, so copy what you need to a computer
2) Be sure to update the bootloader of N7-1 to v 4.23 - there are several guides available
3) Flash TWRP to the N7-1
4) Create a nandroid backup in TWRP of all partitions on the N7-2
5) Copy the 4.4.2 nandroid backup folder to your computer as well
6) Copy this backup image back to internal storage of the N7-1 in the TWRP folder
7) Boot into TWRP on N7-1 and restore the backup image you just copied (restore the system and data partitions)
8) Now you should have the same OS on both devices, along with your N7-1 userdata on the computer and the N7-2 userdata still on the N7-2 - copy userdata (internal storage) as needed
ameinild said:
Sound very possible indeed.
I think you need to do this (if I understand you right): (I'll call the N7 with 4.2.2 "N7-1" and the one with 4.4.2 "N7-2")
1) You need to unlock the bootloader on the N7-1 - this will possibly wipe your data off this device, so copy what you need to a computer
2) Be sure to update the bootloader of N7-1 to v 4.23 - there are several guides available
3) Flash TWRP to the N7-1
4) Create a nandroid backup in TWRP of all partitions on the N7-2
5) Copy the 4.4.2 nandroid backup folder to your computer as well
6) Copy this backup image back to internal storage of the N7-1 in the TWRP folder
7) Boot into TWRP on N7-1 and restore the backup image you just copied (restore the system and data partitions)
8) Now you should have the same OS on both devices, along with your N7-1 userdata on the computer and the N7-2 userdata still on the N7-2 - copy userdata (internal storage) as needed
Click to expand...
Click to collapse
The problem is i don't want the unlock the bootloader of N7-1 ...
Must unlock it ?
Ben Ling said:
The problem is i don't want the unlock the bootloader of N7-1 ...
Must unlock it ?
Click to expand...
Click to collapse
Yes, if you want to do what you say - that is making an exact copy of the OS on N7-2 onto N7-1, then you have to unlock the bootloader. If you just want to upgrade the N7-2 to Android 4.4.2, then you can do it the normal way without unlocking the bootloader. You could then take a normal backup of the apps on N7-2 (using Titanium og ROM Toolbox), and copy them to N7-1 and restore - this requires root, but the bootloader could stay locked.
ameinild said:
Yes, if you want to do what you say - that is making an exact copy of the OS on N7-2 onto N7-1, then you have to unlock the bootloader. If you just want to upgrade the N7-2 to Android 4.4.2, then you can do it the normal way without unlocking the bootloader. You could then take a normal backup of the apps on N7-2 (using Titanium og ROM Toolbox), and copy them to N7-1 and restore - this requires root, but the bootloader could stay locked.
Click to expand...
Click to collapse
So if the N7 4.4.2 with locked bootloader,i can just restore the rom on 4.2.2 without unlocking right ?
Ben Ling said:
So if the N7 4.4.2 with locked bootloader,i can just restore the rom on 4.2.2 without unlocking right ?
Click to expand...
Click to collapse
Erhm, I don't think you can restore an entire ROM with a locked bootloader. Let me reiterate:
If you want to restore an entire ROM (using TWRP/Nandroid backup) you need an unlocked bootloader (at least I think so).
If you want to install/upgrade a stock ROM manually, you can do it with a locked bootloader, but you then need to restore apps afterwards.
I can't elaborate more than that - good luck!
Hi,
i was looking a way to backup my full device s5 Neo that i purchased 3 days ago. I already did it abd rooted my S2.
I have latest Samsung driver however Odin does not backup but flash to device new ROM.
i would like to backup device before rooting it. To do that under S2 i had to root my phone first and to install CWM, only after i was able to backup full device....so still the same thing under S5 Neo ?
i checked http://forum.xda-developers.com/showthread.php?t=2699648 and it seems that first header is confusing...at lesat it confused me that we can full backup device with new Odin before rooting device.
S5 Neo already include a CWM version but without recovery/backup items in the menu
this is the android system recovery v: 3e
thx
it's really so cool and useful
thanks sooooo much
maileen said:
Hi,
i was looking a way to backup my full device s5 Neo that i purchased 3 days ago. I already did it abd rooted my S2.
I have latest Samsung driver however Odin does not backup but flash to device new ROM.
i would like to backup device before rooting it. To do that under S2 i had to root my phone first and to install CWM, only after i was able to backup full device....so still the same thing under S5 Neo ?
i checked http://forum.xda-developers.com/showthread.php?t=2699648 and it seems that first header is confusing...at lesat it confused me that we can full backup device with new Odin before rooting device.
S5 Neo already include a CWM version but without recovery/backup items in the menu
this is the android system recovery v: 3e
thx
Click to expand...
Click to collapse
You can try twrp recovery
On this link https://www.google.com/url?sa=t&source=web&rct=j&url=http://cwm-twrp-android.biz/download/samsung-galaxy-s5-neo.html&ved=0CDMQFjAEahUKEwiagtzI9fbHAhUBFxQKHTPTAN8&usg=AFQjCNEv9n9PathRFvgpndflxBLuh4R3Vg&sig2=DeZL3JwswIOYGFORDzff7Q
Hi,
i already read this article, however to download the CWM you need to give them your mobile phone number so sorry that's only a ad page nothing more.
Moreover, officially from Google, android 6 is still AFAIK in beta mode.
***PLEASE DO NOT SKIP THE INSTRUCTION THAT SAYS MAKE A BACKUP*****
Lots of people are requesting help after not making a backup. And while people are able to help, the files are very large and takes up considerable bandwidth. Much better to EASILY create your own backup.
-------------------------------------------------------------------------
First of all a BIG thanks to @ionioni, this is all his work i am just re-uploading files and some sort of instructions. Much of the instructions are also lifted from ionioni, so thanks from me too!
That's right sources here: https://twrp.me
There Is currently no xposed support for intel 64 bit android
Neither I or the developer take any responsibility for damage to yourself or your tablet, by carrying out anything written here you accept full liability for your actions. I am quite sure xda forums feel the same.
****BIG WARNING , This is ONLY for the Yoga Tab 3 Pro models YT3-X90(F|X|L) Intel Atom powered CherryTrail SoC devices flashing any of these files to another device will more than likely result in BRICK!!****
ANOTHER BIG NOTE.....lollipop can only be rooted using supersu version 2.46 whilst marshmallow version ,as of writing, can ONLY get root using magisk!
You should backup all important data before attempting any of this as you will be losing all data during the process. Titanium backup is good for backing up and restoring apps, other personal files can be moved to external sd or copied to computer.
First off you will need to have fastboot installed on your PC if you havn't already. Find it here......
For windows. https://dl.google.com/android/repository/platform-tools-latest-windows.zip
For Mac. https://dl.google.com/android/repository/platform-tools-latest-darwin.zip
For Linux. https://dl.google.com/android/repository/platform-tools-latest-linux.zip
To gain ROOT access.....
1. download and extract the twrp.img file from the zip attached (YOU MUST EXTRACT FROM THE ZIP!!!) and copy supersu.zip or magisk.zip to tablets external memory card. https://download.chainfire.eu/696/SuperSU/ (LOLLIPOP only supersu v2.46 is supported, other versions cause bootloop) or https://forum.xda-developers.com/apps/magisk/official-magisk-v7-universal-systemless-t3473445 for MARSHMALLOW.
2. unlock your tab if is not unlocked (this is mandatory in order to boot custom images like TWRP recovery):
a) Enable developer options ( Go settings, at bottom select "About tablet" then press "Build number" 7 times. congrats you are now a developer.)
b) Go back to settings and now at the bottom there is a new option "developer options" in developer options enable "OEM unlocking"
3.Restart in fastboot mode (hold volume + while powering on tablet)
4. In the same foler you have extracted your TWRP.img (in windows) hold shift key while right clicking in the explorer window, select open command window here.
5. At the command prompt (black window that opens) type "fastboot oem unlock" for LOLLIPOP or "fastboot flashing unlock" for MARSHMALLOW. at this point you will be prompted that you want to delete all data, this is obviously a security measure that cannot be avoided.
6. go to step 7.
7. In command window (the little black window you opened earlier) type "fastboot boot twrp-2.8.7.0(6)-x90.img" your tablet should now boot to TWRP. ( This is a live session TWRP has not been flashed to your tablet)
******MAKE A TWRP BACKUP!!!!!!!!!!********* DO NOT SKIP THIS STEP.
Modifying system files will mean that you are unable to take Lenovo OTA Updates, the only way to install new updates is to later restore your TWRP stock backup, then reROOT. thats just the way it is i am afraid.
8. in TWRP install SuperSU.zip (lollipop) or magisk.zip (marshmallow) located at your external memory card.
9. Thats it enjoy Your rooted tablet.
10. If you experience time changing upon reboot use your favourite method to edit build prop, I used buildprop editor found in the playstore. Find "persist.sys.timezone" and change it to your location, I had to set mine to Europe/London.
PS...your tablet will hang on every boot at bootloader error 3 to warn about the unlocked bootloader, PLEASE DO NOT lock your bootloader, this is a small annoyance and makes brick recovery much easier. (just restore your lovely TWRP stock backup.
In order to install new Lenovo OTA update you must restore your TWRP stock backup, then take the OTA, then go through the root process again making a new TWRP stock backup after applying the new OTA.
Just one more BIG WARNING, this twrp comes with an option to reboot to bios. Be warned if you don't know what you are doing and you mess something up in there, FULL BRICK! no one will be able to help you recover.
PPS...there seems to be some issues with using magisk modules on our tab. To install them one must download them and then manually install them from twrp.
https://download.chainfire.eu/696/SuperSU/
Now for the real magic.
this can be achieved with or without root! just make sure, as per the ROOT instructions, the first thing you do in TWRP is make a full backup.
As a yoga tab 3 pro owner you know that your tablet lags, crashes and is generally buggy, mine would frequently crash during periods of long sleep.
there is a solution to this problem that is rather simple but seems to yield huge results. if we just run our tablet with the data partition unencrypted it runs like any other nice android device.
once again myself or the developer take no resposibility for your actions if you would like to try this.
instructions by ionioni.
""encryption of the 'data' partition (the one that holds your installed apps, personal stuff etc) is forced on these devices (even with no password set) the 'data' partition is automatically encrypted at boot time if it 'sees' an un-encrypted 'data' partition. in order to disable the enforced 'data' encryption i made a script that will disable the forced encryption flag in the existing boot (partition) image (encryption can still be triggered by the user in the Settings->Security panel). this will not decrypt an encrypted 'data' partition! will just allow you to boot having an un-encrypted 'data' partition."".........ionioni
1. make sure that when you make your TWRP backup that you include the boot partition (it will be patched by the script to disable forced encryption).
2. copy attached x90-disable_encr.zip to your tab and install from TWRP (once finished it will create also a backup of your original boot partition in the folder where the zip is located, however this is only a safety backup as you should have already backed up your Boot partition when making your TWRP backup)
3. **DO NOT SKIP THIS STEP** to finish, reboot in fastboot mode and input "fastboot format data" in order to have a clean(un-encrypted) 'data' partition on the next boot (and it will no longer be automatically encrypted as long as you have the modified boot)
alternatively you can format 'data' from within TWRP if you use the attached 'data' enabled TWRP.
i can confirm that since i have been running my tablet unencrypted using ionionis zip that i hav had no lagging, no crashing. runs just like any other android device. The kernel memory hog still remains but it works silky smooth.
Should anything go wrong stock rom for MARSHMALLOW can be found here...
https://forum.xda-developers.com/thinkpad-tablet/general/yoga-tab-3-pro-debrick-method-t3776951
Thank you for continuing the work !
Do you have compared the difference between encrypted/decryptet - is it worth to do all the stuff (root, etc.) ?
If you have to say a number in percent, how faster will it be ? You've tested multi-user (2nd user) ? If i setup a second user the tablet is nearly unusable - it's better with disabled encryption?
Sorry that i have a lot of questions, but it sounds not that easy and i think about it if its worth to do it
edit:
if i make a full backup - where is the backup of TWRP stored? Do i need a sdcard? Will it be overwritten by OTA/Update/Rooting/Decryption?
thx for your answers already.
I havnt tried with a second user. I could try for you.
before unencryption performance was sluggish. after unencrypted its just fine.
I know it seems like a lot of detail but it is actually easier than it sounds.
You don't have to have root to run the unencrypted stuff but you still need to oem unlock and make a full backup. Backup must be on external media, either ext sd or usb otg.
Your data would not be mountable in twrp unless unencrypted already. And then if you ever accidentily encrypted you ay be forced to format losing your backups.
External media is the way to go.
Sent from my SAMSUNG-SGH-I317 using Tapatalk
If i try "decryption" than root is not far away (so i also get rid of some "lets say useless" system apps)
If ýou can try to check for multiuser you should have running facebook on both accounts (cause fb need a lot of ram and cpu)
maybe i will try it on weekend. i'll think about it....
What about the other peoples who own this tab?
gtx, juergen
Well I would always go ROOT, as it offers more choice, but of course the choice is ultimately yours.
I can try multi users but unfortunately I am one of those weirdos that does not use facebook. I guess I could try a couple of instances of chrome/Firefox.
Sent from my SAMSUNG-SGH-I317 using Tapatalk
Ok just set up a new user switched between them ran chrome on both with several tabs open. didn't seem too bad.
Indeed more feedback from other users who have benifitted from unencrypted data partition would be useful.
Sent from my SAMSUNG-SGH-I317 using Tapatalk
Thanks for your effort.
Hello,
BIG THANKS for your Root solution !
All working !!! thanks !!
All thanks to ionioni, this is all his work, i was just the guinea pig. Glad you have root, did you run the unencryption zip?
Sent from my Lenovo YT3-X90F using Tapatalk
Thanks ionioni and joesnose!
I rooted my device and ran the unencryption zip, it definitely makes everything a little smoother.
Also, I successfully mounted my exFAT sdcard with the help of lurker0's post here: http://forum.xda-developers.com/showthread.php?t=3126394.
Nice. Thanks for the exfat find.
Sent from my SAMSUNG-SGH-I317 using Tapatalk
joesnose said:
Indeed more feedback from other users who have benifitted from unencrypted data partition would be useful.
Click to expand...
Click to collapse
Since the old thread is locked, I'll repeat myself here:
I rooted my YT3-X90F and decrypted it as well. Result is better overall performance (some1 asked rating in percentage, I would say +40% speed & +60% response).
But, sadly, it still needs restart every ~24hours, because all the freezes and lags come back with time.
Advise:
For those who want to root this device only to make it work with Sixaxis controller - don't even start. Yoga T3 doesn't support required bluetooth drivers (huge shame on Lenovo).
doesn't seem to connect to the ds4 either. Just sticks at pairing.
Sent from my GT-N7105 using Tapatalk
Hi Joesnose and thanks for putting the instructions up (and of course, thanks to ionioni).
I have a couple of questions.
EDIT; oh pants, I have some more (possibly stupid) questions - just to be sure I know what I'm doing !
In the very first instructions about rooting:
1. I download the twrp.img.zip to my PC and unzip it to PC right ?
2. And the SuperSu goes in my ext SD card, not on the PC ?
3. I assume I must connect the YT3 Pro to the PC at some point ? When would that be ??
4. I don't understand instruction 7. It says type "fastboot boot twrp-2.8.7.0(6)-x90.img". Do I need to have that file downloaded or something ? What is twrp-2.8.7.0(6)-x90.img file ?
And what does it mean, "This is a live session TWRP has not been flashed to your tablet" ?
I can see that in the section about unencrypting the data partition that there is a file with a similar name to " twrp-2.8.7.0(6)-x90.img' but it has the words "data-enabled" in the fine name. I'm not sure what to do with this ??
5. At what point do I take a back-up of the original YT3 Pro stock image ? It's listed between 7 and 8 ? Do I do it right after 7 ? How do you make the back-up please ? And I guess I better store another copy somewhere safe, off the SD card too ?
6. If I just root this, can I then get OTA updates normally ? (without having to restore to stock).
7. And, if I do root and/or data unencryption, can the YT3 Pro be put back exactly how it was before changing anything ? Including it getting OTA updates normally ?
8. How do I make back-ups of apps while the YT3 Pro IF I wanted to restore those apps later on on an UNrooted YT3 Pro ? I don't know why I'd want an UNrooted YT3 Pro in the future, but for instance, if I used Titanium Backup, that needs root right ?? For instance, if I want to restore data from a Titanium Backup on an UNrooted YT3 Pro, will it work ? Or can I use something else ?
Sorry about all the questions - I can't believe I've rooted and installed custom ROMs for 4 devices - for some reason this seems different to the others and it was a while ago !
Thanks in advance
Frenchdroid said:
Hi Joesnose and thanks for putting the instructions up (and of course, thanks to ionioni).
I have a couple of questions.
EDIT; oh pants, I have some more (possibly stupid) questions - just to be sure I know what I'm doing !
In the very first instructions about rooting:
1. I download the twrp.img.zip to my PC and unzip it to PC right ?
2. And the SuperSu goes in my ext SD card, not on the PC ?
3. I assume I must connect the YT3 Pro to the PC at some point ? When would that be ??
4. I don't understand instruction 7. It says type "fastboot boot twrp-2.8.7.0(6)-x90.img". Do I need to have that file downloaded or something ? What is twrp-2.8.7.0(6)-x90.img file ?
And what does it mean, "This is a live session TWRP has not been flashed to your tablet" ?
I can see that in the section about unencrypting the data partition that there is a file with a similar name to " twrp-2.8.7.0(6)-x90.img' but it has the words "data-enabled" in the fine name. I'm not sure what to do with this ??
5. At what point do I take a back-up of the original YT3 Pro stock image ? It's listed between 7 and 8 ? Do I do it right after 7 ? How do you make the back-up please ? And I guess I better store another copy somewhere safe, off the SD card too ?
6. If I just root this, can I then get OTA updates normally ? (without having to restore to stock).
7. And, if I do root and/or data unencryption, can the YT3 Pro be put back exactly how it was before changing anything ? Including it getting OTA updates normally ?
8. How do I make back-ups of apps while the YT3 Pro IF I wanted to restore those apps later on on an UNrooted YT3 Pro ? I don't know why I'd want an UNrooted YT3 Pro in the future, but for instance, if I used Titanium Backup, that needs root right ?? For instance, if I want to restore data from a Titanium Backup on an UNrooted YT3 Pro, will it work ? Or can I use something else ?
Sorry about all the questions - I can't believe I've rooted and installed custom ROMs for 4 devices - for some reason this seems different to the others and it was a while ago !
Thanks in advance
Click to expand...
Click to collapse
Ok let me see if I can help.
1. Yes
2. Yes
3.you must have the yt3 connected to your pc as the commands will be sent from your pc. Tablet must be in fastboot mode.
4. Yes sorry, when you extract the twrp.zip the file is called "twrp-2.8.7.6(0)-x90.img"
the twrp recovery is not flashed to your tablet it is just loaded temporarily, in a live session. Once rebooted it is gone. Normal recovery is not overwritten.
To run the unencrytption script one must be in twrp.
5. As soon as you get twrp loaded make a backup to either external sd or usb and yes not a bad idea to have a backup of your backup.
6. No
7. Yes, simply restore your backup before taking an ota update.
8. not sure about this one.
Indeed it appears like a lot of instructions but once you get into it its just like any other device.
Hope that helps.
Sent from my GT-N7105 using Tapatalk
Big thanks for the answers - makes more sense now, especially the bit about a recovery session as I'm used to installing clockwork and using it on the device.
You can install twrp to your device but only do this after you have made a backup from a live session, making sure of course that your backup contains the original recovery.
Sent from my GT-N7105 using Tapatalk
joesnose said:
You can install twrp to your device but only do this after you have made a backup from a live session, making sure of course that your backup contains the original recovery.
Sent from my GT-N7105 using Tapatalk
Click to expand...
Click to collapse
Oh, ? At what point does twrp get installed and how do you do that?
And is it obvious how to include the original recovery in the backup?
I thought I had it nailed!
I had a hard time finding out how to restore DRM-keys (TA-partition) that were backed up with TA Backup v2 If you have no backup of your keys, this won't work.
I'm not allowed to post in the Backup_TA2-Thread so I just wanted post a little howto here for the search engine to find, in case anyone else may find it useful:
Boot your device into TWRP recovery
Code:
adb push [I]TA-Backup.img[/I] /sdcard
Code:
adb shell
Code:
dd if=/sdcard/[I]TA-Backup.img[/I] of=/dev/block/platform/msm_sdcc.1/by-name/TA
Code:
exit
Afterwards power off your device and flash a stock firmware using FlashTool. This will also re-lock the bootloader. Done.
Note: You might need to flash an Android 4.4.4 stock-ROM first before installing the latest stock, because of this bug: https://forum.xda-developers.com/xperia-tablet-z/help/flash-stock-rom-t3564623
Thanks for the information.
It is also possible (and easier) to restore TA backup from TWRP recovery, which can make it, as well with the help of old utility Backup TA v9.11.