Multi-user support on N7 with ROMs - Nexus 7 Q&A, Help & Troubleshooting

I have a 32GB N7 that I share with my girlfriend. I quickly learned that if I flash a new ROM, that whole other user's info is gone.
After trying to restore apps and info using both Titanium and ROM Toolbox, I couldn't get it to function like it was before.
I tried to restore to a backup I made prior to doing this and it won't get past the boot screen. I can safely assume that whole other user account is gone. The question is, how can I bring that from one ROM to another? Or how can I restore back to a previous ROM that had it setup?

engagedtosmile said:
I have a 32GB N7 that I share with my girlfriend. I quickly learned that if I flash a new ROM, that whole other user's info is gone.
After trying to restore apps and info using both Titanium and ROM Toolbox, I couldn't get it to function like it was before.
I tried to restore to a backup I made prior to doing this and it won't get past the boot screen. I can safely assume that whole other user account is gone. The question is, how can I bring that from one ROM to another? Or how can I restore back to a previous ROM that had it setup?
Click to expand...
Click to collapse
I could be wrong about this as I am very new to serious mucking around in Android but...
Were ROMs you were using previously based on 4.1.x or older? I know that it is only a very recent version of Android that has proper multi-user support (4.2.2 has it for instance.. I'm not sure about 4.2.1 etc..) and thus now places a "0" folder in which the main user's data is saved, and then there will be "10', "11" etc.. for subsequent users. I'm not sure if your data is gone or not depending on your exact situation, but there are issues that can come from trying to get recovery/data from "pre-MultiUser" and "post-MultiUser" ROMs. Sometimes you may be able to manually move or stipulate where you want to recover from etc... others, it may be gone. There was a post about this from TeamWin and their TeamWinRecoveryProject that explains a bit more of it... http://teamw.in/DataMedia
Not sure if this is helpful, but it is worthwhile to look into regarding multi-user Android.

I am having same problem as OP. I share the N7 with my wife and when I flashed ROM I wasnt able to restore any of her data through Titanium, but it would let me restore everything that was on my main user account. Had to switch back to stock rom nandroid, and her data was still gone and mine was all intact. Now she won't let me put a custom rom on If anyone has any suggestions/fixes I'd really appreciate it. Thanks!

ProbyWaN said:
I am having same problem as OP. I share the N7 with my wife and when I flashed ROM I wasnt able to restore any of her data through Titanium, but it would let me restore everything that was on my main user account. Had to switch back to stock rom nandroid, and her data was still gone and mine was all intact. Now she won't let me put a custom rom on If anyone has any suggestions/fixes I'd really appreciate it. Thanks!
Click to expand...
Click to collapse
Probably had to have titanium on both accounts, then created the account after ROM flash and titanium restore on both accounts sperately
Sent from my Nexus 7 using xda app-developers app

Related

Quick Question - Why should i do a Nandroid Backup

i have been trying to find this out - why i need to do one????
You don't have to ... up to you .
It is for peace of mind .
It things don't workout or you don't like what you did ...
You can put the phone back to what it was !
If you wish to fly with no parachute ...
Then jump ...
Please let us know how the landing goes
Does the nandroid only back up the software and settings -
If i just download the rom from HTC then that will put it back to the latest official rom wont it..
i was under the impression that a Original hero was only 1 rom away?
You don't need a nandroid backup at all. I use it all the time though.
You just asked a question that Dan330 had already answered in his previous post... yes it backs up basically everything. There are a few things that it doesn't back up but they aren't too significant (They are left out to prevent further problems).
If you downloaded a rom from HTC well, Duh. Of course it will put it back to the official rom. If it's rootable, then you can just restore a nandroid backup if you wanna go back to what you had before. Hopefully the HTC rom doesn't prevent you from rooting otherwise you won't be able to.
What the heck do you mean Original Hero was 1 rom away? Huh?
HTC Rom image will restore the rom.
A 'normal' data backup will store the data, ie drag from the SD card.
You can reinstall any marketplace apps from the marketplace.
The Google cloud will store calendar, contacts, mail, etc.
For the average user, nandroid is not necessary. But I understand the usefulness to a rom cooking enthusiast and the speed of a single backup. All the averages do not need to worry about nandroid though.
thank you cbailey
and sorry KAwAtA i was rushing to work - and talking crap at the same time...
I never even thought that HTC would try and stop you from rooting the phone....
just always thought that having a unbranded HTC ment i can install any rom at any time, and still install the latest HTC Rom if i wanted.
Very New to Rooting. so i need a few weeks to catch up.
Nandroid takes like a "photo" of your phone at the exact time you did it and will rstore everything exactly like it was at that time, e.g. rom, data, apps EVERYTHING.
you should always do one before flashing or removing anything on your phone that you should not "officially" be doing as that way if something goes wrong you can easily get back to your working rom.
Lennyuk said:
Nandroid takes like a "photo" of your phone at the exact time you did it and will rstore everything exactly like it was at that time, e.g. rom, data, apps EVERYTHING.
you should always do one before flashing or removing anything on your phone that you should not "officially" be doing as that way if something goes wrong you can easily get back to your working rom.
Click to expand...
Click to collapse
Nandroid backup keeps installed apps aswel?... I was under the assumption that I needed to use Titanium or Mybackup Pro for that.
So just to clear up, if i dont mind losing contacts, sms and calender, but want to back up current ROM with apps and games, Nandroid is the one?...
ddotpatel said:
Nandroid backup keeps installed apps aswel?... I was under the assumption that I needed to use Titanium or Mybackup Pro for that.
So just to clear up, if i dont mind losing contacts, sms and calender, but want to back up current ROM with apps and games, Nandroid is the one?...
Click to expand...
Click to collapse
Nandroid takes a complete image of your phone as it is, will restore it all exactly as it was at the time you backed it up.
if your looking to change roms then you need to use another app to backup your data and apps.
Aha,... Nice one Lenny!!
nandroid backup
having problems.. Im using the old ra for some reason it doesnt let me perform an nandroid back up... I tried teh newer ra same problm...any suggestions???

[Q] Few questions

Hello!
I still have Eclair 2.1 on my Epic 4g. It is rooted and right now I want upgrade it to Froyo.
How can I restore all apps and Data from the phone I have now. What do I need to do after flashing Rom to Epic 4G. Those apps that I already have installed, they will be restored somehow or I need to do something to restore it?
I've already did backup data and apps. Where can I reed something like FAQ with all that questions.
Please, sorry for stupid questions.
Also, I need some advice about the Rom. What rom better to install?
Thank you very much
antila said:
Hello!
I still have Eclair 2.1 on my Epic 4g. It is rooted and right now I want upgrade it to Froyo.
How can I restore all apps and Data from the phone I have now. What do I need to do after flashing Rom to Epic 4G. Those apps that I already have installed, they will be restored somehow or I need to do something to restore it?
I've already did backup data and apps. Where can I reed something like FAQ with all that questions.
Please, sorry for stupid questions.
Also, I need some advice about the Rom. What rom better to install?
Thank you very much
Click to expand...
Click to collapse
First things first, wrong spot for this post...
2. titanium backup or any other good backup program that backs up to sd
back up the programs
install the rom
download titanium backup from the market again
reinstall the apps.
3. MY ROM (superheroes) otherwise I would go with mammon's that's the basis for my rom and his roms I have to say are the most stable and overall best out there... (my opinion)
There are a few other roms out there that are good roms, I would say check them out.
BTW this thread will most likely be moved or deleted !
Thank you very much. I have one more questhion. After upgrade to Froyo do I need to register all o my accounts or there is some way and it will be registered somehow?
Sent from my SPH-D700 using XDA App
I am glad this question was asked, because when I originally researched it, I found the same answer.
When using Titanium Backup, the restore process is tedious because it asks you for every single application if you want to install or not. If you have a lot of apps like I do, that was a pain. Any way around this?
ALSO, when doing a Titanium restore, it would indeed install all of my apps, but if I went to the "My apps" section of the Market, they wouldn't show. Is there any way to restore applications so that they show up in Market, which would allow them to be detected and updated (if a new version comes out)?
Odd thing happened to me when I flashed to noobnl's CM6 port. I didn't backup/restore any applications, but when I logged in to my google account, Market automatically reinstalled all of my apps (it must store my active app list server side?)

Why are my Clockworkmod backups unusable?

So, I just rooted my Mytouch 4G a few days ago using the 'Ultimate' guide on this forum. I had root access and I disabled and deleted some stock apps from my phone. I was using LauncherPro instead of the HTC Sense launcher. I made a backup in Clockworkmod recovery immediately after installing Clockworkmod, before I'd made any major changes.
So, I spent the past few days removing and tweaking things. I had my phone working extremely well. But then I realized that I actually wanted an .apk file (the stock visual voicemail app) that I'd already deleted from the phone. It should be in my original backup file, right? So I figured that I'd make a new backup, restore my old backup containing the .apk file, copy the .apk file off of the phone, then restore my recent backup. Well...this didn't work.
When I restored either the original backup or the more recent backup, the phone would boot up and I'd get a message that the System UIDs are inconsistent. The phone would let me make phone calls, but 95% of my apps were missing from the loader. Most of the icons on my home screens were grayed out and would tell me the applications were missing when I tried to click on them.
I tried Fix Permissions in Clockworkmod recovery, but it didn't help. My Android Market app and all of my file manager apps didn't work, so I couldn't reinstall any apps. When I'd wipe all the data on my phone, but only restore the System backup, the Android Market would work and the phone basically returns to stock. But as soon as I restore my Data backup, everything breaks.
At this point, I've already wiped the phone and started over from scratch, but I'm afraid to rely on Clockworkmod/Rom Manager for backups again. Any ideas what went wrong?
did you flash a different kernel? this may be the issue, as I know that for other devices CWM does not restore the kernel.
this happens when your backups/card gets corrupted... it could of been a number of things... changing the name of something to how much you scan the card... hard to say exactly what caused it... If your really worried about it I would suggest making a backup of your backup on your computer just to be safe...
Hmm. Mine does.
mr.tenuki said:
did you flash a different kernel? this may be the issue, as I know that for other devices CWM does not restore the kernel.
Click to expand...
Click to collapse
Sent from my stickie key HTC Glacier using XDA App
I did make a backup of my backup, but it's not like these backups sat on the memory card for months before they got used. I ran the restore within minutes of when I made the last backup. Besides, aren't the backups hashed with md5 and then retested before restoring? So, if the files did get corrupted, I would think Clockworkmod would have notified me, no?
I just wish that after making a backup, there was some way to test it out without taking the chance of trashing my phone.
Regarding using a different kernel, I did not. I did not flash any experimental/downloaded images, these were simple backups and restores of my existing phone data.
mr.tenuki said:
did you flash a different kernel? this may be the issue, as I know that for other devices CWM does not restore the kernel.
Click to expand...
Click to collapse
This is for phones that dont support Nand like the vibrant. HTC phones is a full backup including kernel.
sundayhustler said:
I did make a backup of my backup, but it's not like these backups sat on the memory card for months before they got used. I ran the restore within minutes of when I made the last backup. Besides, aren't the backups hashed with md5 and then retested before restoring? So, if the files did get corrupted, I would think Clockworkmod would have notified me, no?
I just wish that after making a backup, there was some way to test it out without taking the chance of trashing my phone.
Regarding using a different kernel, I did not. I did not flash any experimental/downloaded images, these were simple backups and restores of my existing phone data.
Click to expand...
Click to collapse
Your right, CWM does do a md5 check when restoring. I'm sorry, I don't know what could be wrong. I currently have like 5 backups of 4 ROMS and have to restored to just to play around. Did you do apps2sd? This can cause major issues when switching ROM's.
I am also having a problem restoring to my stock rom. how big does my backup file have to be?
I have had this problem before. I think in my case my issue was caused by and incompatible version of CWM. I found that to be safe, I usually make two back ups, one with recovery in 2.5.12 and one with 3.0.0.6.
It was the file. It was only 60mb, apparently I ran out of memory thanks though my other backups work fine and I found the stock rom on a thread.
Sent from my HTC Glacier using XDA App
oh haha i was about to post.

[Q] A few random questions about cwm, backup etc

I have successfully rooted my device using the version 2.0.0 of the toolkit. I think I'm going to donate a few euros to get the latest, the author deserves all the money.
A few questions:
What exactly is CWM? What's the difference between a backup made with titanium backup and a backup made with CWM? Is it enough to backup the system settings or do I need to backup even the apps? I mean the list of installed and purchased apps should be always available on the Google play account, at least I hope so...
Should I download the latest version of CWM (the . IMG file) and flash it with the toolkit or should I use the integrated version that seems to be IN the toolkit?
Thanks in advance for the answers.
A CWM backup will backup everything. If you restore it, your device will be exactly the same as it was when the backup was made.
Titanium backup only backs up apps and their data
But with titanium backup do I need to backup all the or only their data?
Is CWM useful even to install other Roms?
Sorry for the confusion: I'm not an expert.
Clock work mod will backup your entire android build as it is. all data, apps, settings, contacts, messages. etc
Titanium will backup apps and their data only
If you bork your software or try another rom then decide you want to go back, a Cwm backup will take you right back to the exact point you made the backup
Titanium is useful to have when changing roms because after loading a new one you can load your previous apps & data into your new rom whereas Cwm would completely overwrite the rom
In essence they are similar but perform completely different tasks
Sent from my Nexus 7
With titanium I usually just backup all user apps with data (meaning anything you have downloaded that is not part of the rom)
You cannot flash a new rom with titanium. that is what Cwm is for
Cwm deals with the roms
Titanium deals with apps
CWM & Backup
nihil39 said:
I have successfully rooted my device using the version 2.0.0 of the toolkit. I think I'm going to donate a few euros to get the latest, the author deserves all the money.
A few questions:
What exactly is CWM? What's the difference between a backup made with titanium backup and a backup made with CWM? Is it enough to backup the system settings or do I need to backup even the apps? I mean the list of installed and purchased apps should be always available on the Google play account, at least I hope so...
Should I download the latest version of CWM (the . IMG file) and flash it with the toolkit or should I use the integrated version that seems to be IN the toolkit?
Thanks in advance for the answers.
Click to expand...
Click to collapse
CWM is a recovery mod used for Flashing new rom while at the same time gives you handy things to do like, do a NANDROID- Creating a image for ur current rom and all its sys settings with apps and there data. U can also Flash other things like a previously created Update.zip for Titanium Backup, which is helpful after u have flashed a new rom and want all ur previous apps and data back.
A small thing a consider sharing, When Flashing a new ROM, Back up only the apps+data thing and not the System. As ur new ROM will have its own System settings (better to adjust it then than bfore). Now, also Create an update.zip, which a mentioned earlier from TitBckp Menu.
Have Fun.
bagofcrap24 said:
Clock work mod will backup your entire android build as it is. all data, apps, settings, contacts, messages. etc
Titanium will backup apps and their data only
If you bork your software or try another rom then decide you want to go back, a Cwm backup will take you right back to the exact point you made the backup
Titanium is useful to have when changing roms because after loading a new one you can load your previous apps & data into your new rom whereas Cwm would completely overwrite the rom
In essence they are similar but perform completely different tasks
Sent from my Nexus 7
With titanium I usually just backup all user apps with data (meaning anything you have downloaded that is not part of the rom)
You cannot flash a new rom with titanium. that is what Cwm is for
Cwm deals with the roms
Titanium deals with apps
Click to expand...
Click to collapse
Thanks.
I still don't get the point of backing up apps. I mean: their settings (and system settings) ok but why backup something that can be downloaded again from google play store? I guess my account keeps record of my installed and (above all) purchased apps (tapatalk only). Am I wrong?
Other question:
I'm using the stock Jelly Bean 4.1.1 rooted and I don't want to mess with cooked roms whatsoever. I rooted the device in order to get USB on the go support and TiBackup.
Will I get updates from google or I will have to manually flash a rooted version of an updated Rom? I think I will have to install CWM at the end, I guess
etgine sandy
nihil39 said:
Thanks.
I still don't get the point of backing up apps. I mean: their settings (and system settings) ok but why backup something that can be downloaded again from google play store? I guess my account keeps record of my installed and (above all) purchased apps (tapatalk only). Am I wrong?
Other question:
I'm using the stock Jelly Bean 4.1.1 rooted and I don't want to mess with cooked roms whatsoever. I rooted the device in order to get USB on the go support and TiBackup.
Will I get updates from google or I will have to manually flash a rooted version of an updated Rom? I think I will have to install CWM at the end, I guess
Click to expand...
Click to collapse
Please answer at least the last question...
nihil39 said:
Please answer at least the last question...
Click to expand...
Click to collapse
Edit: If google release an update, you dont have to relock it
Jordanooo said:
If google release an update, i think you will have to relock your bootloader to get it officially.
Click to expand...
Click to collapse
You do not have to lock your bootloader to get an update only reason to lock it is if you have to return it
Sent from my BAKED Nexus
spaceman860 said:
You do not have to lock your bootloader to get an update only reason to lock it is if you have to return it
Sent from my BAKED Nexus
Click to expand...
Click to collapse
So, in my condition (rooted stock rom) will I get the official google updates without doing anything?
You will still get the updates but Cwm will not be able to install them.
You would need the stock recovery to apply ota updates
In reference to your previous question regarding titanium. You could re download the apps from play store after a wipe.
Titanium also restores any preferences you had saved. And in the case of games it will also restore your progress & game saves
Sent from my Nexus 7
Thanks, so there's no point in backing up the whole app, we only need its data and settings.
I haven't installed cwm yet. Did you use the toolkit downloadable from another thread in this forum? If yes, does the toolkit automatically download the latest version of cwm?
I'm not sure with the tooolkits
I have never rated them
It's much wiser to learn to do these things manually as it really doesn't take very much learning and it's always valuable to know what to do in case you bork something
Sent from my Nexus 7
Does cwm also backup sripts like link2sd and 2nd fat32 partition?

[Q] Smooth Rom 4.4

Hi
As you've prob guessed I'm a noob, hence the help.
Ive just recently rooted and unlocked my nexus 7 with wugfresh 1.6.2 and am now looking at putting a custom rom on it.
Ive followed the advice and put titanium backup on and backed up my apps and system data.
Having read the instructions for installing Smooth Rom 4.4, it states 'Please do not restore a 'system' data backup as it would overwritte some important files'
does this mean I cannot restore my apps from titanium backup as I cant restore system data as they where backed up together or is there some other way for me to do it ?
does titanium backup get wiped as well ?
All Help appreciated, this is my first rom install and I dont wanna **** it up.
Robbie_UK said:
All Help appreciated, this is my first rom install and I dont wanna **** it up.
Click to expand...
Click to collapse
The most important thing to do is to make a FULL nandroid backup before you begin.
The 2nd most important thing to do is to get that backup copied someplace else besides the tablet. (PC, USB key, etc) Screw-ups involving accidental erasure of the psuedo- SD card area on the tablet are commonplace with folks that are new to this. It won't do you any good to make a backup if you immediately erase it while fooling around with a custom recovery (or toolkit) that is new to you.
I suggest you learn to make backups using the custom recovery rather than relying on a toolkit.
If you are happy with the tablet in it's current configuration, then a back-up allows you to survive any ****-ups that inevitably follow as you can return back to a known state and proceed again having learned from your mistakes.
FULL NANDROID BACKUPS. COPIED SOMEPLACE SAFE (OFF THE TABLET)
As for TiB, the only thing that is 100% safe is to only restore apps & their data that are NOT pre-installed in whatever ROM you are installing. Note this means not restoring any of the Google gapps as well, as you may have had a different versions of those apps running on your current ROM than on the to-be-installed ROM, whether pre-installed or updated later.
Yeah it's a bit of work restoring apps one by one and re-configuring things. There probably are System apps that can have their data safely restored to the wrong version of the app - but there are absolutely no guarantees that correct operation of the app will follow that.
cheers and good luck

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