Database Develop

[Q] How to wipe Data partition after it's been encrypted?

Hey guys,
My work switched to Google Apps for their email so i wanted to test it out on my phone. Doing so required them to encrypt my phone. What this appears to have done is encrypt the data partition. So now when i go into (TWRP) recovery and try to do a backup / wipe / or anything else, it says it is "Unable to mount /sdcard" I'm unable to do a factory reset of any kind so i'm essentially stuck on this rom (ARHD) until i can figure out how to wipe data and get the /sdcard to be not encrypted. Does anyone have any ideas? I'm imagining that with the modified recovery not being able to access the data partition that i'm going to have to do some adb type stuff?
Please help! I want to keep flashing new roms!

Anyone??

I think you can't decrypt your data partition...
Did you try to wipe your data partition with the latest TWRP?

Guich said:
I think you can't decrypt your data partition...
Did you try to wipe your data partition with the latest TWRP?
Click to expand...
Click to collapse
That's the thing, the recovery can't mount /sdcard so wiping isn't an option from recovery

jrun said:
That's the thing, the recovery can't mount /sdcard so wiping isn't an option from recovery
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Click to collapse
Hi! Only TWRP recovery can solve your issue just do this...
Boot to TWRP recovery->Wipe
From there there are 2 options the left is the advance wipe and on the right is Format Data
Just select the format data button and it should reformat the whole data partition.
1st one would prompt so many errors and reformat then reformat it again 1 time and it should fully reformat your phone.
In theory it should reformat data partition even when encrypted but just in case it fails and I won't be able to go back to this thread just boot in bootloader and type
"fastboot erase userdata"

Well none of that works. TWRP doesn't support decryption yet for this device.

sevenalive said:
Well none of that works. TWRP doesn't support decryption yet for this device.
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What I instructed basically doesn't decrypt the partition. It reformats it.

Riyal said:
What I instructed basically doesn't decrypt the partition. It reformats it.
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Click to collapse
I know what you instructed, it doesn't work. Only way I got it to work. Flash the stock recovery. Boot into system. Take off the encryption, phone reboots and removes the encryption, data is formatted. Then flash TWRP again.

I basically ran into this exact problem. I was hoping that I'd still be able to back up the encrypted device, but forget about it. What a pain in the ass.
Someone should make add something to the guides about how encrypting your device makes nandroid backups impossible.

Many errors when wiping cache partition in TWRP

Hello,
As stated in the titled I have tried to root my OP 3T and it horribly wrong. First I got the error message telling me it couldn't mount my /system partition. I googled how to fix it and discovered that I had to wipe the partition as it might be corrupt. Just to be sure that it was indeed corrupt. The size was stated as 2913MB but the used space was stated as 1728265MB. I therefor wiped it and tried to boot. Now I couldn't boot into Oxygen OS...The only thing i can boot into was fastboot and recovery. I then tried to install the LineageOS and it worked. I can finally boot to a OS. However when going in the recovery again and wiping the cache I get a slew of errors. Almost all of them are "Error opening: '/data/local/nhsystem/kali-armhf/dev/xxxx' (Not a directory)". There is also one other error: "Unable to mount storage"
How do I fix this?

uptivuptiz said:
First I got the error message telling me it couldn't mount my /system partition.
I therefor wiped it and tried to boot. Now I couldn't boot into Oxygen OS...
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Click to collapse
System partition is the OS. So from that fact, it should now be obvious that wiping system (and therefore wiping the OS) will result in not being able to boot to OS.
Not being able to mount system is a little odd. What version TWRP? Current version is typically recommended (currently 3.2.3-1).
You can try in TWRP Wipe section, the "Format data" button. This will often fix corruption issues with data partition (format is not the same as wipe), although I'm not sure how the system partition was affected.

redpoint73 said:
System partition is the OS. So from that fact, it should now be obvious that wiping system (and therefore wiping the OS) will result in not being able to boot to OS.
Not being able to mount system is a little odd. What version TWRP? Current version is typically recommended (currently 3.2.3-1).
You can try in TWRP Wipe section, the "Format data" button. This will often fix corruption issues with data partition (format is not the same as wipe), although I'm not sure how the system partition was affected.
Click to expand...
Click to collapse
I'm using TWRP 3.2.3-1. I tried to format with the "Format data". It seems that I still can't install the OxygenOS. Also the error "Error opening: '/data/local/nhsystem/kali-armhf/dev/xxxx' (Not a directory)" still accurs.
I'm still able to install and run LineageOS.

uptivuptiz said:
I'm using TWRP 3.2.3-1. I tried to format with the "Format data". It seems that I still can't install the OxygenOS. Also the error "Error opening: '/data/local/nhsystem/kali-armhf/dev/xxxx' (Not a directory)" still accurs.
I'm still able to install and run LineageOS.
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Click to collapse
Formatting with 3.2.3-1 will remove the encryption footer. It's basically the only build of TWRP you DO NOT want to use! 3.2.3-10 is the latest but that won't reinstate your encryption footer. My advice is this. Flash TWRP 3.2.3-0, format at least /system, /data and /cache from the Wipe/Advanced screen and then Wipe everything for good measure.
Make sure you are in front of your PC when you do this. Back up everything to PC first as formatting will delete everything from Internal Storage. Make sure you have all your Install zips ready to go on your PC. Whn you're done formatting and wiping you can copy the install zips back to Internal Storage and flash OOS full Zip (or Custom ROM).

Dirk said:
Formatting with 3.2.3-1 will remove the encryption footer. It's basically the only build of TWRP you DO NOT want to use! 3.2.3-10 is the latest but that won't reinstate your encryption footer. My advice is this. Flash TWRP 3.2.3-0, format at least /system, /data and /cache from the Wipe/Advanced screen and then Wipe everything for good measure.
Make sure you are in front of your PC when you do this. Back up everything to PC first as formatting will delete everything from Internal Storage. Make sure you have all your Install zips ready to go on your PC. Whn you're done formatting and wiping you can copy the install zips back to Internal Storage and flash OOS full Zip (or Custom ROM).
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Thanks! I will try that when i get time tomorrow. There will come an update.

uptivuptiz said:
Thanks! I will try that when i get time tomorrow. There will come an update.
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Click to collapse
Let me know.
Remember to reboot Recovery once you have 3.2.3-0 installed so that your format operations are carried out with that version.

Dirk said:
Let me know.
Remember to reboot Recovery once you have 3.2.3-0 installed so that your format operations are carried out with that version.
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I have now downgraded TWRP to version 3.2.3-0 and wiped everything. I didn't backup as I don't have anything on there because it's not my main device. After wiping I tried installing OOS again and this time I get the same "Error opening: '/data/local/nhsystem/kali-armhf/dev/xxxx' (Not a directory)" error and now it cant mount the /system partiton again

uptivuptiz said:
I have now downgraded TWRP to version 3.2.3-0 and wiped everything. I didn't backup as I don't have anything on there because it's not my main device. After wiping I tried installing OOS again and this time I get the same "Error opening: '/data/local/nhsystem/kali-armhf/dev/xxxx' (Not a directory)" error and now it cant mount the /system partiton again
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You're not just wiping, You're formatting. Select each of the partitions (Cache/Data/System) and format in each case. (I recommend EXT4 for Data)

Dirk said:
You're not just wiping, You're formatting. Select each of the partitions (Cache/Data/System) and format in each case. (I recommend EXT4 for Data)
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Ok. I tried to format all the partitions with EXT4 and tried to install OOS again with a adb sideload. This didn't work and I got an error "adb sideload cannot read 'OnePlus3TOxygen.zip'". So I tried installing it with a OTG adapter and a USB inside TWRP and it worked. OOS is running and working! Thanks for the help
Now I'm just curios as to why I can't sideload...

uptivuptiz said:
Ok. I tried to format all the partitions with EXT4 and tried to install OOS again with a adb sideload. This didn't work and I got an error "adb sideload cannot read 'OnePlus3TOxygen.zip'". So I tried installing it with a OTG adapter and a USB inside TWRP and it worked. OOS is running and working! Thanks for the help
Now I'm just curios as to why I can't sideload...
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Click to collapse
A few possibilities:
1) OnePlus3TOxygen.zip of course isn't the name of the file as downloaded, so i assume you renamed it to something more sensible before trying to sideload? Do you have 'Hide Extensions of known filetypes' selected in Windows Explorer? Could it be that what you ended up with was 'OnePlus3TOxygen.zip.zip', which of course wouldn't work if you were trying to sideload 'OnePlus3TOxygen.zip'?
2) You didn't move your download to your platform-tools folder in adb?
3) You didn't open a CMD window in your platform-tools folder?
Anyway, good that you're back on your feet.

Dirk said:
A few possibilities:
1) OnePlus3TOxygen.zip of course isn't the name of the file as downloaded, so i assume you renamed it to something more sensible before trying to sideload? Do you have 'Hide Extensions of known filetypes' selected in Windows Explorer? Could it be that what you ended up with was 'OnePlus3TOxygen.zip.zip', which of course wouldn't work if you were trying to sideload 'OnePlus3TOxygen.zip'?
2) You didn't move your download to your platform-tools folder in adb?
3) You didn't open a CMD window in your platform-tools folder?
Anyway, good that you're back on your feet.
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Here's what I did:
Moved the zip file to the platform-tools folder.
Kept the stock name of the zip file.
opened CMD window in platform-tools folder.
I still get the error.

uptivuptiz said:
Here's what I did:
Moved the zip file to the platform-tools folder.
Kept the stock name of the zip file.
opened CMD window in platform-tools folder.
I still get the error.
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Click to collapse
You wouldn't be the first. It's a common issue. You know you can just move the zip to Internal Storage and flash it with TWRP? The Recovery is MTP enabled. Useful to know for future reference. :good:

Is it possible to format /sdcard partition?

Hello,
I've recently moved from the Stock ROM to Xiaomi.eu version, but it seems there is some encryption left over the /sdcard partition (I see all file/folders there as gibberish names). This seems to be affecting some applications that make use of that partition, as the camera or whatsapp for example. Does anyone know the partition layout of the phone? Is it possible to just format /sdcard without touching the rest of the /data? I believe a format of that partition and a restart should be enough to allow the phone to use that partition again...

AzureusPT said:
Hello,
I've recently moved from the Stock ROM to Xiaomi.eu version, but it seems there is some encryption left over the /sdcard partition (I see all file/folders there as gibberish names). This seems to be affecting some applications that make use of that partition, as the camera or whatsapp for example. Does anyone know the partition layout of the phone? Is it possible to just format /sdcard without touching the rest of the /data? I believe a format of that partition and a restart should be enough to allow the phone to use that partition again...
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"Format Data" option in twrp that you put Yes in is the option to get rid of encryption.

Mohammed779 said:
"Format Data" option in twrp that you put Yes in is the option to get rid of encryption.
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I formated data prior to installing Xiaomi.eu ROM, but it seems it didn't touched the /sdcard, not sure if its a limitation of the current beta TWRP (LR.Team) or it it was something else. Also the idea should be to proceed without reseting the phone and formating data would do so.

How to decrypt storage

How to remove decryption in storage? I tried Andy Yans script but it doesn't work for me. It stays on the Android splash page but doesn't boot into system. I installed the script after I wiped data.
I would like to try custom kernals.

hanzzi said:
How to remove decryption in storage? I tried Andy Yans script but it doesn't work for me. It stays on the Android splash page but doesn't boot into system. I installed the script after I wiped data.
I would like to try custom kernals.
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Format data, the one where u need to type yes(you lose all internal)
disable force encryption is used before first boot of a new vendor firmware to prevent encryption, it wont decrypt.

Mooatreides said:
Format data, the one where u need to type yes(you lose all internal)
disable force encryption is used before first boot of a new vendor firmware to prevent encryption, it wont decrypt.
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Thanks for the reply but I'm still a little unsure. I can't seem to find format data where you have to type yes. In Twrp I go to advance wipe and just select data and I have to slide the bar to the right. Then I install the script. Is this wrong?

hanzzi said:
Thanks for the reply but I'm still a little unsure. I can't seem to find format data where you have to type yes. In Twrp I go to advance wipe and just select data and I have to slide the bar to the right. Then I install the script. Is this wrong?
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Yeah it says advanced wipe, and format data, tap format data and type yes.

twrp 0 mb

hello.my phone is n950F i have problem. my problem is
when i flash stock rom w/odin
then set up twrp this app cant see my internal storage without apply format data or tap change file system ex4 exfat etc.
but i choose format data or repair file system button, mine system is formatting. so i must have flash stock rom odin again.
if i flash stock rom again, twrp cant see my interal storage, 0mb error. again again again. how i flash kernel in twrp on stock rom?

n0te8user said:
hello.my phone is n950F i have problem. my problem is
when i flash stock rom w/odin
then set up twrp this app cant see my internal storage without apply format data or tap change file system ex4 exfat etc.
but i choose format data or repair file system button, mine system is formatting. so i must have flash stock rom odin again.
if i flash stock rom again, twrp cant see my interal storage, 0mb error. again again again. how i flash kernel in twrp on stock rom?
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If you are using twrp from this thread, it's mentioned on the 3rd post
corsicanu said:
FAQ / Further reading
Q: TWRP can't mount data partition, what to do?
A: Make sure you formatted data partition.
Q: Why do i need to format data partition?
A: Because old rom encrypted your data partition and new rom can't decrypt and use that content / root needs access to data partition to place misc files / phone not booting after flashing root until data partition gets formatted.
Click to expand...
Click to collapse
or maybe try to disable data encryption which is mentioned on the 1st post
corsicanu said:
After booting in TWRP download and flash no-verity-opt-encrypt-6.1 zip to disable data partition encryption
If for any reason you fail to install TWRP multiple times/different methods, make sure you check this thread
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You need to format /data with the "yes" confirmation.
The stock ROM will survive, because it's on /system and /preload.
After that you need to flash a fully patched kernel with removed forced encryption (like a2n kernel) before you reboot to the system. Otherwise the stock kernel will encrypt the /data partition once again.

ace2nutzer said:
You need to format /data with the "yes" confirmation.
The stock ROM will survive, because it's on /system and /preload.
After that you need to flash a fully patched kernel with removed forced encryption (like a2n kernel) before you reboot to the system. Otherwise the stock kernel will encrypt the /data partition once again.
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i know i tried this but mine stock rom installed after flashing with odin (turkey) and after apply twrp format data stock rom are very different. the second i said seems like global rom. it contains weird settings and apps I will do what you say and take a screenshot,1 2 hours later you will understand me better.