Howto restore from 8.1 - Sony Xperia XZ2 Compact Questions & Answers

Hi, has anybody tried and managed to restore his xz2compact from a previous backup on google drive, that was made with LOS 15.1.
My xz2c says after initial setup: no backups available.
What is the best option to transfer all apps and data to the xz2c?

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Titanium Backup can't perform changes in the SYSTEM partition [Lineage 14.1, Supersu]

Hi,
I have recently replaced my LG G3 stock rom with Lineage 14.1 official rom. I have also rooted my device using the 'su-addon' suggested by Lineage team.
Unfortunately, since I moved to Lineage some of Titanium Backup's features have stopped working properly. For instance, I tried to uninstall some system apps, and after reboot they were still there. I also tried to convert system apps into user apps, but Titanium Backup couldn't accomplish the proccess (I had a message telling me "Please wait" for more than 15 minutes).
However, Titanium Backup does succeed in taking backups (for both system and user apps). Another interesting fact is that I managed to uninstall system apps / convert them to user apps manually, by using a File Browser with root access. Therefore I really don't get why titanium backup stopped working....
My guess was t. backup doesn't work properly with Lineage root addon, and thus I replaced it with SuperSu (latest version). Still, titanium backup doesn't work... It looks like it fails in each action requires to change files in the system partition (maybe it doesn't have write permission?)
Any suggestions?

Titanium Backup do not start

Hi guys, I would like to save my Apps and associated data using the Titanium BU.
I unlocked the Bootloader, installed TWRP 3.3.1-0924 (unoff.) and Magisk 19.2.
Device is: RN8P, MIUI Global 11.0.3 Stable, 11.0..3.0 (PGGEUXM)
Problem: I can install the Titanium App v8.04 or the v7 version. When the TitaniumBU trying to start, and there is some long error message (approx. 2 pages) that all list only Java errors.
Unfortunately, I have not tried the Titanium before (without TWRP and Magisk Root).
Now, I can not say whether it worked before this modification.
Question: Is there any Java settings in the MIUI settings. I didn't find anything in Settings / Developer mode. Maybe someone can help me. I just want to back up my data and the apps with Titanium. On my old Samsung it made a perfect job.
Thanks
regards wa2ld
I downloaded Titanium Backup from play store seemed to work perfectly fine for me.
I had trouble getting titanium backup to install from my backed up apk's but as JuanM2020 said, from the play store works fine. Only issue I have is I've noticed some apps fail to restore with titanium backup on my rn8pro, just hangs, doesn't matter which settings I change. Maybe 10% of my apps have to be manually installed from the play store and then I can restore "data only".
I did not have any issue installing Titanium backup I grabbed from apkmirror, latest version available.
Gave it root and done.
Tbh I had been looking in that solution to backup my apps due to TWRP issues with work profiles (second space) which I am using, and so far none of the apps I tried to backup and restore worked. It backed up the Apk yes (but I dont care about that I have backup of those already) but not once I could make a backup of the app data (well yes I made the backup) more precisely could not restore those apps userdatas. Simple thing I wanted to have my login passwords saved so it could be restore without having to retype them.
Whatsapp, telegram, protonmail and some others, restoration of userdata failed all times.
Still have not found any solution to backup and restore apps and their associated datas from both profiles. Fails on both.
It is likely working for some apps, but certainly not for the app I need it to work. Too bad for me.
Speaking of which is there a way to only backup OS settings alone (without all the apps) for like walpapers, colors, default apps, per app settings like notifications and such?
Thanks.

seedvault. How do i migrate to seedvault on LOS?

currently on pixel 2xl, going to move to los. how do i used seed vault? do i have to start over with my appdata? i can't find anything about migrating over. only that seedvault exists, and its cool. thats about it. why are there no guides on how to setup and move over to it from google backup.
letrain02 said:
currently on pixel 2xl, going to move to los. how do i used seed vault? do i have to start over with my appdata? i can't find anything about migrating over. only that seedvault exists, and its cool. thats about it. why are there no guides on how to setup and move over to it from google backup.
Click to expand...
Click to collapse
I don't think, seedvaut has an interface to Google backup. And you can only use it, if it is integrated in your current OS. If you intend to stay with Google, use Google backup. If you go noGApps, its better to manually setup, anyway.
kurtn said:
I don't think, seedvaut has an interface to Google backup. And you can only use it, if it is integrated in your current OS. If you intend to stay with Google, use Google backup. If you go noGApps, its better to manually setup, anyway.
Click to expand...
Click to collapse
yeah i can't download google backup either. was curious if i could migrate using titanium backup or something, instead of starting over.
its my understanding lineage os now uses seedvault. so if i use lineage os i must use seed vault?
letrain02 said:
yeah i can't download google backup either. was curious if i could migrate using titanium backup or something, instead of starting over.
its my understanding lineage os now uses seedvault. so if i use lineage os i must use seed vault?
Click to expand...
Click to collapse
If you use lineageOS with GApps, you setup with your Google account. That will automatically install your apps. Google backup is probably part of your current OS. Make sure to have it enabled.
kurtn said:
If you use lineageOS with GApps, you setup with your Google account. That will automatically install your apps. Google backup is probably part of your current OS. Make sure to have it enabled.
Click to expand...
Click to collapse
well thats what i'm curious about. if lineageos uses seedvault for backup, will my data be restored if i use gapps?, and only future backups will be seed vault?
letrain02 said:
well thats what i'm curious about. if lineageos uses seedvault for backup, will my data be restored if i use gapps?, and only future backups will be seed vault?
Click to expand...
Click to collapse
@letrain02, did you find out anything more about SeedVault?
I've searched online and can't find any documentation to speak of, and haven't managed to find out how to use it by trial and error. It's easy to switch between Google and SeedVault in Settings, but not at all clear how to restore SV backups. No manual 'restore' option in Settings, and LOS doesn't offer to find and restore an SV backup on first boot of a reset / reflashed system (although SV is now the default backup service).
I can confirm, though, that if you've installed gapps it still goes through the standard Google setup on first boot, including asking if you want to restore a backup. SV being the default backup service doesn't affect that.
lpedia said:
@letrain02, did you find out anything more about SeedVault?
I've searched online and can't find any documentation to speak of, and haven't managed to find out how to use it by trial and error. It's easy to switch between Google and SeedVault in Settings, but not at all clear how to restore SV backups. No manual 'restore' option in Settings, and LOS doesn't offer to find and restore an SV backup on first boot of a reset / reflashed system (although SV is now the default backup service).
I can confirm, though, that if you've installed gapps it still goes through the standard Google setup on first boot, including asking if you want to restore a backup. SV being the default backup service doesn't affect that.
Click to expand...
Click to collapse
Well that's good for migrating to seedvault. I know you can store seedvault to a next cloud account, or file and save it to usb. Im not sure how it would restore without gapps.
letrain02 said:
Well that's good for migrating to seedvault. I know you can store seedvault to a next cloud account, or file and save it to usb. Im not sure how it would restore without gapps.
Click to expand...
Click to collapse
Google's setup will only restore a Google backup, of course. How to restore a SV backup remains a mystery to me.
You can save SV backups to NextCloud, USB OTG storage, internal storage, or microSD card. Backups are stored in a hidden folder .SeedVaultAndroidBackup at the top level of the chosen storage device. If you choose the microSD card, it warns that this is 'internal storage' (even if it's 'portable' storage) and won't be available if you're rebuilding the device ... which isn't true.
Some good news! I found a useful piece of information in https://forum.fairphone.com/t/has-anyone-tried-seedvault-backup-with-lineage-17/62481/8 - how to manually run SeedVault's restore process. It works!
Code:
adb shell am start -n com.stevesoltys.seedvault/.restore.RestoreActivity
Shortly after posting that last message, I re-flashed a LineageOS device that'd had SeedVault active as the backup service, and accepted LOS's offer to restore from backup. It ran SeedVault Restore and restored successfully. So in that sense it works much like restoring a Google backup.
Entering a 12-word encryption key is a bit of a pain, but is still a lot easier than manually reconfiguring the device - and as a bonus, you can run / re-run the restore manually, which is either impossible or very difficult to do with Google backups.
Note that SeedVault never re-uses an encryption code. When you enable / re-enable SeedVault backups it creates a new code. It doesn't seem to be possible to set the code manually.
lpedia said:
Some good news! I found a useful piece of information in https://forum.fairphone.com/t/has-anyone-tried-seedvault-backup-with-lineage-17/62481/8 - how to manually run SeedVault's restore process. It works!
Code:
adb shell am start -n com.stevesoltys.seedvault/.restore.RestoreActivity
Click to expand...
Click to collapse
Just because it took me some time to und erstand: you connect your device to a computer and run the command via USB. This triggers a programm start in the device. You can then unplug from the computer and connect the USB stick with the Backup.

Titanium backup reporting insufficient space

Hi, I've just flashed LOS 17.1 to my Swift, switch from LOS 16. All's well apart from Titanium. Wishing to start with a clean slate I backed up the TBs backups by copying them to my PC. I deleted the TB backup files on the phone and then reinstalled TB (only way I could find to set the backup list to zero).
I'm using Magisk for SU state. Can anyone please advise of a fix for this?
Found a solution, I deleted the titanium folders in the phone and SD memory spaces, erased the date from the Titanium backup App. All is now working.

Fairphone 4 with /e/ OS; restore WhatsApp backup shows 0kb and date of 01/01/1970

Hi,
I've bought the Murena Fairphone 4, which is basically the Fairphone 4 but with /e/ OS pre-installed.
I first tried to restore the backups by connecting my Google Drive account, but I saw it didn't work with MicroG, and I also read on the internet that MicroG doesn't support the backup of WhatsApp on Google Drive.
Anyway, I still wanted to restore my WhatsApp chats, so I copied the backup files (from /WhatsApp/Databases and /WhatsApp/Backups) from my old phone (Samsung Galaxy A8 2018 with Android 8) and I moved them to my new Fairphone (with Android 11, to /Android/Media/com.whatsapp/Databases and /Android/Media/com.whatsapp/Backup).
When I started WhatsApp, it said that it had detected the back-up, however it was 0kb and it was from 1970.
Nevertheless, I clicked on 'restore' and hoped for the best, but to no avail... it said it couldn't restore the backup...
I don't know how to fix this... I'm suspecting it may have something to do with the customized /e/ OS and/or the Android version difference (from 8 to 11).
Luckily, I can still access my WhatsApp chats on my old phone, as the backup are on my Google Drive account, and they're still locally somewhere on my old phone, so no data is lost.
But I still want to move the chats to my new phone...
Does anyone know a solution to this?

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