I've purchased a new phone and have transferred most of the data from the old device to the new one using various means. There is one app, however, that does not have account login, so I cannot save cached data in the cloud. Meaning that I have no choice but to move/restore the app to the new device with the offline (cached) data. This app is quite important to me, and I need the offline data. I know of the following techniques to do this: - Backup and restore app + cached data using Helium: copy & replace the 'sdcard/carbon' folder from the old phone to the new phone. After doing this, *restore* the app with data on the new phone. - Root the device and use Titanium backup to do the same. - Backup apps using the 'Backup' feature in Google Drive. Helium just did not work (with a brand new phone with Android 8.0!). I cannot use Titanium as I cannot root my old phone at this point (before backup is complete). And **restoring** the app this way will in all likelihood require that I root my *new* phone as well, which is a deal-breaker. Does Google Drive Backup work with all third party apps? I did not see the app I want to save in the list of apps whose data was being saved by Google Drive. What should I do? Can anyone advise? **EDIT**: All of the techniques given on various sites for both partial and full backups (including nandroid backups) are *device specific*, i.e. you can restore to the *same* device only, not from one device to another. This includes both **Droid Explorer** and **Simple ADB Backup** too, apparently. Is there no general way of restoring an app with data to a new phone without root? Google Drive backup does this without root. If it can do that, why can't other apps? Also, various people suggested using **MyBackup Pro** / **Android Assistant** / **DrFone+**. All these tools give up before even trying: they *all* seem to require root.

I'm currently looking around at different options for adding regular backups to a new phone, and I want more than the "backup" that google offers. There's the one category, backup apps that use root access, like Titanium Backup and OAndBackupX. The way they work is fairly clear, since they have root access, they can just copy all the files that represent the apps' data. But then, there's Helium, a non-root app. Somehow, it claims to backup app data (which seems to work, from what people are saying), but nowhere have I found any indication as to *how* Helium Backup even accesses that data. The way I understand Android's permission model, when an app stores data in its private storage, no other standard app has access to that, period. The only other software that can access that data is system apps, root access, and ADB backup (although adb backup can also be disabled for the specific app - and ADB needs a computer attached to work). Seeing that none of the three apply for Helium backup, how does Helium backup then work? Or is this some wonky hacky trade secret the developers don't want to reveal?

I am trying to restore a single game data file to a new Moto G7 via Helium. I've enabled USB debugging, but when I start the desktop app, they don't connect to each other. The desktop app connects just fine to the old phone I'm trying to pull the data off of.

It usually takes me several tries to get all my Android files to Google Drive using Helium. But finally it always seems to work. (155 files yesterday) When I then look at One Drive I don't see a Helium Backup folder as I would expect. Instead there are multiple files listed on the right under the Activity tab. With other backup programs the files are easily visible in a backup folder. Is there any way to verify the backup is okay? It seems to me the only way to have peace of mind that your backup is perfect is to restore to another phone and see if everything's there. Any thoughts on this are appreciated.

I am trying to back up all my game saves to Google Drive using Helium. I can backup a few game saves, but eventually I receive this error: Backup Error An error occurred while performing your app backup. A log of the error has been sent to ClockworkMod. Click Backup to attempt to backup the remaining apps. To fix this, I either clear the cache of Helium on my old phone or reinstall it, which seems to fix it. If I try to list all the backups I have in Google Drive on my new phone, I occasionally get: An error has occurred while retrieving your app list. Once again, I need to clear the cache or reinstall to fix this. When I can actually try to restore, many apps get stuck on a set percentage such as 93%, and then gives me the same message as above except "Restore Failed".

**EDIT: I found a solution, and I made an answer below! ;D** Hello everyone :) (fisrt, I apologize for my English, I'm french... :/) Before doing a factory reset to upgrade my android version (Alcatel one touch idol 3 under Android 6.0.1 now, and 5.0.2 before the factory reset), I backed up all my apps with Helium. Then, I managed to get evrything back. Except sms. I don't know why, but when I try to restore them, I get the following message : For those who want to know, I'm now rooted (so I don't use the desktop version, even if I tried and it doesn't work neither) Thanks, I'm reaaaally desperate...

I'm trying to backup apps on my OnePlus One using Helium . When I open the Helium Windows Desktop application, it works some magic and tells me Helium is now activated on my phone, but the app still shows a spinner and says it's waiting to be activated.