what changes in installations of new roms, or in creating and restoring backups via twrp?
If you're encrypted your data is very secure as it is encrypted. If you're device isn't encrypted (decrypted) then your data isn't secure and can be easy accessed, even setting a pin or password wont protect your data.
The question is a little vague.
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Cloning a phone with a Nandroid backup requires a separate step to copy over the data from the Internal data partition. It is not included in the backup. The normal process is to physically transfer the ExtSDcard with the backup on it, so all the other data on the card also gets moved.
After "imaging" a phone with TWRP backup (and other tools), and restoring onto a new phone this way, most data is retained.
However so far I have found a few things that are not.
1) Wi-Fi passwords have to be re-entered. (maybe they are stored in a way that hashes the Wi-Fi MAC address??)
2) All Bluetooth devices have to be re-paired (unavoidable since the MAC address of every phone is unique, and part of the pairing)
3) If used, Systemless root has to be re-established by flashing SuperSU from recovery.
4) Any DHCP reservations have to be updated with the new Wi-Fi MAC address.
Has anyone discovered any other data that is not preserved or transferred through the process of Nandroid backup / restore, and copying Internal and ExtSDcard data?
Hello guys,
I did a foolish update today without reading the forums first and updated to OOS 9.0.4 (Pie) from my previous stable OOS Oreo without removing encryption and backing up the Internal Storage data. I did take a backup of Boot, Data(excl storage) and System Image using TWRP 3.3.1 and copied it to my computer.
After the update, the OS refuses to decrypt the partition (Error: Decryption unsuccessful. The password you entered is correct, but unfortunately your data is corrupt. To resume, you need to factory reset the phone.) and TWRP fails to decrypt (Error: Decrypt took too long. Killing process, failed to decrypt data).
What else I tried:
1.) ADB restore the backup from the PC (as I can't transfer anything to the phones encrypted storage), but the TWRP backup is a bunch of files in a folder and ADB expects a single file in its command.
2.) Flash an older version of TWRP (3.2.3) and try decrypting (Error: Failed to decrypt data)
Is there any way I can restore the backed up files to get the phone back before the update and save my internal storage? (without a time stone or a quantum jump). I am thinking along the lines that I can somehow restore the backed up files into the respective partitions and make the decryption work, is it possible?
Worst case is there some way for me to backup the internal storage data with the encryption then go about downgrading the phone and restoring it and decrypting it back?
Any pointers would be helpful and appreciated. Thanks.
Gi__an said:
The password you entered is correct, but unfortunately your data is corrupt.
[...]
Is there any way I can restore the backed up files to get the phone back before the update and save my internal storage?
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The only thing you might try is to flash OOS 9.0.4 firmware with 5.0.8 bootloader + keymaster.
If it still says the same, then sorry, but your data got corrupted and it's gone.
I switched over from xiaomi.eu to MI Room. Seemed to work fine until a magisk module uninstall screwed up my ROM and caused a bootloop.
Figured I would do a factory reset, however now Orangefox recovery no longer asks for a decryption password. I know the password, so how do I decrypt my storage?
Thanks
It doesn't ask for a password because the encryption files were deleted so twrp would not know what the encryption data is. But miui encrypts your data when you set your pin/pattern and the userdata remains encrypted when the encryption keys get deleted. The only way is to format userdata.
I also want to know a workaround for this. If you format userdata and flash recovery version of your rom, will your data get encrypted again when you set a password? Because then, any backup made with your data encrypted is unusable. Is data encrypted only on official roms but not for lineageOS etc?
editheraven said:
It doesn't ask for a password because the encryption files were deleted so twrp would not know what the encryption data is. But miui encrypts your data when you set your pin/pattern and the userdata remains encrypted when the encryption keys get deleted. The only way is to format userdata.
I also want to know a workaround for this. If you format userdata and flash recovery version of your rom, will your data get encrypted again when you set a password? Because then, any backup made with your data encrypted is unusable. Is data encrypted only on official roms but not for lineageOS etc?
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My encryption files actually weren't deleted. I did a factory reset and reinstalled the previous ROM I was encrypted on a few times and somehow it decided to allow me to decrypt my storage again... So I managed to back things up, then format and wipe all storage and flash the new ROM. Working fine since.
Thanks for the help though.
Hello everybody,
I flashed some rom from other forum which changed my vendor(i guess by twrp messages) and I forgot to flash disable force encryption zip, so now i have encrypted storage, no system and some different vendor which wasn't on my device by default. I have access on twrp and fastboot and all but how can I install system on encrypted device without losing my data(factory reset to decrypt storage) phone?
Edit: by data I mean internal storage not app and rom data. I already wiped them.
copy data to pc or in pendrive using otg then proceed
Yesterday i flashed xiome eu stable ROM from weekly beta but couldn't boot as all my data was encrypted with strange random folder name. I had to format data to boot into ROM. I am using orange fox kwrnel 11.0. How can i prevent this from happen in future when flashing other ROM?
shoeseat said:
Yesterday i flashed xiome eu stable ROM from weekly beta but couldn't boot as all my data was encrypted with strange random folder name. I had to format data to boot into ROM. I am using orange fox kwrnel 11.0. How can i prevent this from happen in future when flashing other ROM?
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Click to collapse
When switching ROM you have to Format Data in TWRP. Not just because of strange folder names but to avoid all kinds of troubles. New ROM will encrypt Data and Internal storage, you will have protection and everything will properly work as originally
New TWRP versions know how to read encryption, when booting to TWRP you will have to enter your Android Pin/Pattern (same as when you boot to Android or you use to unlock the screem in Android) and TWRP will then also work properly
That's the price of switching ROMs. Backup your Data to PC, backup things (WA and so) to Google and cloud, etc, and restore upon installing the new ROM (btw, I use also Mi Cloud and it restores automatically my apps and other things)
Otherwise, you had to Forrmat Data originally and flash DFE = Disable Forced Encryption (I never used, old school from the times when TWRP did not know to work with encrypted Data and Internal storage) with all your ROMs to prevent them to encrypt. However, you would have no protection then (in Android and TWRP).
Furthermore, after switching the ROM, you could expect then various troubles since new ROM trying to work with settings saved by the old ROM.
Hence, you would still have to Wipe Data upon that ROM switch - therefore, what do you get then by avoiding formatting and proper encryption to automatically happen when booting to the newly installed ROM
Thanks for the explanation but this encryption of data and formatting data partition was never the problem in my past devicea like nexus 5 and oneplus 3 roms. I freely flashed many roms in those devices without formatting my internal storage. Wiping data and system were the only thing i did in past to flash new rom. Is this the xiome phones only restriction?
Also if i have to backup all my data in PC Everytime i want to switch to new rom then it's very troublesome and time consuming aa i have 200GB of data in my internal storage. Isn't their any easy way to flash ROMS without entirely formatting my personal data?
shoeseat said:
Thanks for the explanation but this encryption of data and formatting data partition was never the problem in my past devicea like nexus 5 and oneplus 3 roms. I freely flashed many roms in those devices without formatting my internal storage. Wiping data and system were the only thing i did in past to flash new rom. Is this the xiome phones only restriction?
Also if i have to backup all my data in PC Everytime i want to switch to new rom then it's very troublesome and time consuming aa i have 200GB of data in my internal storage. Isn't their any easy way to flash ROMS without entirely formatting my personal data?
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Things change with the evolution of Android. In the old times rooting was simple, just run King(o) root and then flash CM recovery by flashify, and flash the ROM you wanted - but it doesn't apply anymore
zgfg said:
When switching ROM you have to Format Data in TWRP. Not just because of strange folder names but to avoid all kinds of troubles. New ROM will encrypt Data and Internal storage, you will have protection and everything will properly work as originally
New TWRP versions know how to read encryption, when booting to TWRP you will have to enter your Android Pin/Pattern (same as when you boot to Android or you use to unlock the screem in Android) and TWRP will then also work properly
That's the price of switching ROMs. Backup your Data to PC, backup things (WA and so) to Google and cloud, etc, and restore upon installing the new ROM (btw, I use also Mi Cloud and it restores automatically my apps and other things)
Otherwise, you had to Forrmat Data originally and flash DFE = Disable Forced Encryption (I never used, old school from the times when TWRP did not know to work with encrypted Data and Internal storage) with all your ROMs to prevent them to encrypt. However, you would have no protection then (in Android and TWRP).
Furthermore, after switching the ROM, you could expect then various troubles since new ROM trying to work with settings saved by the old ROM.
Hence, you would still have to Wipe Data upon that ROM switch - therefore, what do you get then by avoiding formatting and proper encryption to automatically happen when booting to the newly installed ROM
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Click to collapse
I agree with you point here but i have been using decrypted storage since i go this phone..Mostly i delete my android folder and other folder which might be created by rom itself after flashing any rom with dfe and never had any issue on new roms.