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How to dump RAW Data from Android to PC? (lemmy.ml)

submitted 2 months ago by [email protected] to c/[email protected]

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I'm looking for a way to dump raw data from an entire phone or at least the sda block to a PC, using a method other than adb pull.

When I run adb pull /dev/block/sda sdaDump.img, it creates a dump file. To find what I need, I have to search through this raw data using a Hex Editor. If the dump comes from a fully functioning phone, I can usually find what I’m looking for because all the data is still intact.

However, I accidentally wiped the metadata partition on my phone, so the decryption keys/files are gone. Now, because of that, some folders appear empty when checked with TWRP's File Manager, even though the actual files are still there.

If I create a dump now, the raw data in the file won't be the same as when the metadata was present, and those folders weren't showing as empty.

Running adb pull /dev/block/sda sdaDump.img now results in a dump where the Hex Editor shows zeroes (no data) where these files should be.

Is there any alternative method to create a raw data dump of the sda block or entire phone storage, that will capture that data as it is (not empty folders, but the data in them), even if it's encrypted?

I don't want to create the raw data dump onto the phone storage and then transfer it to a PC, but something that works like adb pull, in the sense that it pulls the data from the phone directly onto a PC.

Thanks a lot in advance to everyone!

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[–] over_clox 1 points 2 months ago

Ouch. Good luck with that 🤞

[–] THEWIZARD 1 points 2 months ago* (last edited 2 months ago)

Been looking for this my self an app ideally tried neobackup and DataBackup on F-Droid on Android TV OS 12 no joy, it backs up something just the apk I think and some other useless part. But not the entirety of apps and games for both the apk and app data portion trying to restore fails as well with the apk launch, so I am stuck in this same boat my self.

You might want to try those on a phone if that's what you have it requires root though.

But I scoured the net in search of an app for a whole day as well but had no finds for doing a backup that worked for TV OS of any kind, so I'm not sure what to do short of finding a dev and begging them to generate a nandroid backup-able TWRP .img file and flashing it problem is flashing it likely wipes the lot before using it, and it needs to be a specific .img for this specific TV box and for specific other devices, this is just so I can backup the games and apps incase the HDD dies ever, as there is no longer a way to backup and restore them on higher than Android 9 I think it is?

What a joke though, it's becoming pointless on purpose. Probably to stop people going for none proprietary devices/products to play the games and apps with like the new bag of sh@t Google are releasing some TV box that mine makes look like dog sh@t any way and mine is 2yrs old already a Mekotronics R58.

This is a growing problem that hardware manufacturers of the boxes should be fixing with their own backup tool to backup per app apk+data and as a .img file style backup in one tool but they cannot be bothered, in fact many are making devices abandonware too quickly to care about letting people do the fundamental necessities the boxes and phones should have like backing up.

Here's a caption from this github page https://gist.github.com/AnatomicJC/e773dd55ae60ab0b2d6dd2351eb977c1

sadly I doubt that works on Android 12 due to limitations.

To help protect private app data, Android 12 changes the default behavior of the adb backup command. For apps that target Android 12 (API level 31) or higher, when a user runs the adb backup command, app data is excluded from any other system data that is exported from the device.

This does sound very promising though not tried yet?

https://www.xda-developers.com/swift-backup-android-12-shizuku/

UPDATE PROBLEM SOLVED

It works Swift Backup is working for Android TV OS 12 apps and data with root apparently it can work without root over adb using Shizuku, I have successfully restored Huntdown game with data on a secondary hard drive from an adooted storage hard drive based device, you can choose individual or batch app backup to internal and external also it allows media backup not sure whether it means videos and music only or everything else on internal storage or the media which is inside apps in some respect like some photo editing and video editing apps possibly?

Cons it is free up to 10x backing up of an app but does habe premium version to allow infinite backup