Database Users

TWRP Recovery not backing up Data

I am not sure why but when I backup using TWRP Recovery it completes successfully but there is nothing written to the Data partitions. If I try to backup just the data I get a 25 MB file. It should be nearer to 6 GB. Whats more weird is the backup did work a while back and if I restore to that one I can make one more backup with Data included. After that one it stops backing up the Data partition again. Has anyone had an issue where Data is not actually being backed up even though it is selected and shows successful? Any thoughts?
I have a stock rooted Sprint Galaxy S4 on NAE. I have not taken the update.

Update: I tried updating from TWRP 2.6.3.1 to 2.8.0.1. That did seem to resolve the problem but left a new issue. After the backup is complete I always go to the file explorer in TWRP and make sure its there, which is was. But with 2.8.0.1 after I reboot the backup is gone. So I backed up again, and again checked the file explorer and it was there, powered the phone off and put the sd card in my pc and I can see the backup is there. Put the card back in my phone and turn it on, and the backup is gone. ???????
So I tried a different version of TWRP recovery. I installed 2.7.1.0 this time and now I'm back to the original issue. The backup is made, and I can see it again after the phone reboots but there is no data partitions being backed up even though during the process it says it is.
I have attached the TWRP log for assistance. The log shows it wrote quite a bit to data.ext4.win000 but this is 0 bytes in the backup directory. At the top of the log it says "Total size of all data: 7438MB" which I believe is accurate since my last good backup with data was 6.5GB. At the end of the log it says "Data backup size is 5052MB" but the directory properties show the backup size is really 2.2GB. This is because nothing is written to the data archive.
Could someone please help?

Anyone?

I noticed this same thing of 0 byte with data.ext4.win000 file in my TWRP backup 2.7
Viper41086 said:
Update: I tried updating from TWRP 2.6.3.1 to 2.8.0.1. That did seem to resolve the problem but left a new issue. After the backup is complete I always go to the file explorer in TWRP and make sure its there, which is was. But with 2.8.0.1 after I reboot the backup is gone. So I backed up again, and again checked the file explorer and it was there, powered the phone off and put the sd card in my pc and I can see the backup is there. Put the card back in my phone and turn it on, and the backup is gone. ???????
So I tried a different version of TWRP recovery. I installed 2.7.1.0 this time and now I'm back to the original issue. The backup is made, and I can see it again after the phone reboots but there is no data partitions being backed up even though during the process it says it is.
I have attached the TWRP log for assistance. The log shows it wrote quite a bit to data.ext4.win000 but this is 0 bytes in the backup directory. At the top of the log it says "Total size of all data: 7438MB" which I believe is accurate since my last good backup with data was 6.5GB. At the end of the log it says "Data backup size is 5052MB" but the directory properties show the backup size is really 2.2GB. This is because nothing is written to the data archive.
Could someone please help?
Click to expand...
Click to collapse
I noticed this same thing of 0 byte with data.ext4.win000 file and similar other conditions in my TWRP backup 2.7 on N7100 DN3 5.5. I am worried there's some corruption with data partitions. I have then redone the TWRP backup without compression and now the file is of reasonable size. Earlier my phone had gone into sudden bootloops for no apparent reason. Only after I changed the battery (which I had thought was the lamest thing to try) did it come back to normal. My phone however seems very slow and wonky. Now I am going back to dealing with those more serious issues.

I had problems with TWRP also not backing up correctly. I'm not sure why that is the problem, but I use Clockworkmod due to this issue. TWRP was not backing up Touchwiz roms correctly so my restores never worked. It seemed to work fine for ASOP roms though. At any rate, I never found TWRP reliable and I recommend anyone I know to use old school CWM instead.

I had a problem with TWRP a long time ago. Can't remember exactly what it was. I just like TWRP because it's touch but I went with Philz recovery and it never fails and is also touch or you can use the volume keys to navigate along with customize the look. It's the best recovery in my opinion. You should flash Philz recovery.
Here's the link for the Sprint Galaxy S4
https://goo.im/devs/philz_touch/CWM_Advanced_Edition/jfltespr/

TWRP sayd system not mounted, then rebooted during restore, phone is softbricked

I was bootloader unlocked, latest TWRP installed, systemless root with SuperSU 2.6, cataclysm rom, ex kernel, layers, xposed. I had made a ton of backups and even kept some of them backed up in another locations. I needed to restore a backup in TWRP. At first it wouldn't let me, kept saying that phone system was mounted as read only.
this is my question #1 - How do you mount system for read in TWRP? I see there's an option called "mount," I go in there, i see settings I can select, but I don't see any option to "execute" or "apply" settings (like TWRP has on other screens - swipe to backup, swipe to restore, etc). There's no "clicke here to mount option." what do you do here?
#2 - it finally mounted rw, i think, but after picking my latest backup, it started and then when it got to 19% it reboot the phone. Phone is softbricked.
#3 - I'm very confused about all the checkboxes to restore, and all the checkboxes to wipe.
What should I be wiping and what should I be restoring? When making backups I checked all the boxes.
I had the galaxy nexus before and I knew that phone and clockworck mod inside out. TWRP is confusing and glitchy to me. I'm stuck and work with a phone without an OS and I'm starting to freak out, and don't have A to C cables with me.
Please explain where I went wrong here and how to do things correctly. I want to understand what I'm doing better, not just follow steps.

When you restored, with all the check boxes did you click "system image" for restore?
You should wipe then restore only system, data, and boot.

dontbeweakvato said:
When you restored, with all the check boxes did you click "system image" for restore?
You should wipe then restore only system, data, and boot.
Click to expand...
Click to collapse
Yes, I selected all the boxes, including system image I believe.
I did a wipe. I selected all the boxes. Went back into TWRP and now all my backups are gone. I said reboot, and TWRP said there's no OS installed. I think I deleted everything. I should not have wiped. I do have a backup saved on a computer, it's a folder with lots of .img files inside. How can I get that onto my phone with only having fastboot and TWRP modes available? I mean how can I place it on the phone in a way that TWRP would recognize it and restore from it.

I ended up just flashing the stock google image and that at least gave me a working phone back.

Yes. You beat me to it, that's what I was going to say. You have to reflash. Just remember for future references you only need to backup boot, system, and data( and efs etc). But Not "system image" that'll Bork your stuff up.

dontbeweakvato said:
Yes. You beat me to it, that's what I was going to say. You have to reflash. Just remember for future references you only need to backup boot, system, and data( and efs etc). But Not "system image" that'll Bork your stuff up.
Click to expand...
Click to collapse
I'd like to really understand this better. Do you know why system image borks the phone? Also, when you say efs etc., do you mean "absolutely everything except system image"? (I actually didn't see EFS listed there)

Well boot system and data. But you also need efs cause thats your imei. So just look around and familiarize with what youve found so far. Right now Im trying to flash 6.0.1 with a systemless root. Its kinda goin ridiculous right now because there aren't any directions or suggestions.

If you get to "no OS installed" restoring system image, then system will get you back
Sent from my Nexus 6P using Tapatalk

zgroten said:
If you get to "no OS installed" restoring system image, then system will get you back
Sent from my Nexus 6P using Tapatalk
Click to expand...
Click to collapse
After it said no OS installed, I tried to restore system image from my TWRP backup, and the restore failed and the phone reboot itself at 19% restored. I had to ADB flash the factory system image from google. This brings me back to the original question.
Why was the restore in TWRP failing?

Did you mount system in TWRP before attempting to restore?
Sent from my Nexus 6P using Tapatalk

mistermojorizin said:
After it said no OS installed, I tried to restore system image from my TWRP backup, and the restore failed and the phone reboot itself at 19% restored. I had to ADB flash the factory system image from google. This brings me back to the original question.
Why was the restore in TWRP failing?
Click to expand...
Click to collapse
actually in twrp you could of wiped, then restored boot, system , data and it would of restored everything

What should I backup using TWRP for the Axon 7 ?

Hey guys and gals!
After a few weeks of using the phone, I now feel comfortable doing a Nandroid Backup (TWRP).
I used to do it all the time on my OPO Kitkat, but now with Android Marshmallow, it's quite different.
Here is my situation:
A2017U (us version)
TWRP 3.0.2.2 Installed
Bootloaded Unlocked
Rooted
Xposed Framework v87 installed
Update B29 installed
Inside TWRP>Backup I have many options:
1- Boot (64MB)
2- Cache (2MB)
3- Data(6969MB)
4- Recovery (64MB)
5- System (3723MB)
6- System Image (6144MB)
7- EFS (4MB)
By default, the "Boot", "Data" and "System" are selected, but after some reading I could also backup "System Image" for a near-perfect restore.
Also, some said to backup the EFS in-case it gets corrupted/damage, but some say it can brick your device.
Could anyone tell me what should I backup in case I get stuck somewhere in the future.
Thank you !!
P.S: I have removed any fingerprints and set the lock screen to "Swipe" (no pattern).

First, make sure to flash the official twrp. Do not keep the one we use to unlock bootloader.
There is no harm in backing up efs, in fact it is a good idea to do so. Just do not select it during a restore unless something has wiped your current efs and its the only way to fix.
I don't see a need to back up a full system image but couldn't hurt to at least have one for safe keeping.
Boutchoo said:
Hey guys and gals!
After a few weeks of using the phone, I now feel comfortable doing a Nandroid Backup (TWRP).
I used to do it all the time on my OPO Kitkat, but now with Android Marshmallow, it's quite different.
Here is my situation:
A2017U (us version)
TWRP 3.0.2.2 Installed
Bootloaded Unlocked
Rooted
Xposed Framework v87 installed
Update B29 installed
Inside TWRP>Backup I have many options:
1- Boot (64MB)
2- Cache (2MB)
3- Data(6969MB)
4- Recovery (64MB)
5- System (3723MB)
6- System Image (6144MB)
7- EFS (4MB)
By default, the "Boot", "Data" and "System" are selected, but after some reading I could also backup "System Image" for a near-perfect restore.
Also, some said to backup the EFS in-case it gets corrupted/damage, but some say it can brick your device.
Could anyone tell me what should I backup in case I get stuck somewhere in the future.
Thank you !!
P.S: I have removed any fingerprints and set the lock screen to "Swipe" (no pattern).
Click to expand...
Click to collapse

lafester said:
First, make sure to flash the official twrp. Do not keep the one we use to unlock bootloader.
There is no harm in backing up efs, in fact it is a good idea to do so. Just do not select it during a restore unless something has wiped your current efs and its the only way to fix.
I don't see a need to back up a full system image but couldn't hurt to at least have one for safe keeping.
Click to expand...
Click to collapse
How do I know which TWRP I installed ?
Do you have a link for the official TWRP for the Axon 7 ?

Its in the dev forum titled official twrp.

lafester said:
Its in the dev forum titled official twrp.
Click to expand...
Click to collapse
This? :
https://twrp.me/devices/zteaxon7.html
https://dl.twrp.me/ailsa_ii/
Edit: Looks like there's twrp-3.0.3-0-ailsa_ii Out for the Axon 7
But the official XDA Forum Page it's twrp-3.0.2-0-a2017u
After flashing the 3.0.2-0-a2017u, I now have in the backup sections: Modem (NON-HLOS) (95MB), I don't know if I should back it up.

Help needed! Firmeware CAN-L11 EU Version

Hello,
i need help. I messed up my phone while trying to repair my only read mode system partition after boot.
Current state:
Phone CAN-L11 with EU Firmeware and working TWRP Recovery.
I did a full wipe, but have no data partition to restore, because this couldn´t be saved with twrp while i made my first nand backups during no read access to data partition.
My phone always shows 2 times the huawei logo and then boot in erecovery from huawei where i tried to restore, but it shows always "fail to get data" (wifi works).
When i restore all partitions backups that i own via twrp i miss the data partition (is the cause why it wont boot - isn´t it?)
Now i searched for any img that i can use to get my phone working again - anyone has a tip what img i could use (i have a huawei update extractor) - through twrp or fastboot.
Could anyone help me with a twrp backup or a img file of data partition - or has another tip how to get my phone working again?
Thanks for tips!

merlin21 said:
Hello,
i need help. I messed up my phone while trying to repair my only read mode system partition after boot.
Current state:
Phone CAN-L11 with EU Firmeware and working TWRP Recovery.
I did a full wipe, but have no data partition to restore, because this couldn´t be saved with twrp while i made my first nand backups during no read access to data partition.
My phone always shows 2 times the huawei logo and then boot in erecovery from huawei where i tried to restore, but it shows always "fail to get data" (wifi works).
When i restore all partitions backups that i own via twrp i miss the data partition (is the cause why it wont boot - isn´t it?)
Now i searched for any img that i can use to get my phone working again - anyone has a tip what img i could use (i have a huawei update extractor) - through twrp or fastboot.
Could anyone help me with a twrp backup or a img file of data partition - or has another tip how to get my phone working again?
Thanks for tips!
Click to expand...
Click to collapse
I think that you need a system.img, so you can flash. This system imagem would write everything you need, so you can boot normally.
Have you tried to dowload @bluesmoothie backup from dropbox from the Root and Recovery post?
Here is the link, in case you don't find it https://www.dropbox.com/sh/qrk0fbpn5rnukxn/AAAmhFwBTNoqq0sWfCH-VMHLa?dl=0
Sent from my victara using XDA Labs

Here the full Backup for the CAN-L11:
https://drive.google.com/open?id=0B134drJ4-Ed0R3VSY3A5NGpjVWc
Format /data, reboot recovery and than restore from backup. After the restore is complete make a wipe.

I restored my system from twrp (original first save). But that did not help.
After that i loaded the can-L11c432 update.zip from huawei and extracted with others the system.img - that also did not help to boot.
Tomorrow i flashed the orignal recovery.img from c432 but i did not find an update.zip wich works to manually flash in stock recovery.
@Vinnom the link you shared leads to twrp.img (no system.img).
@-=MoRpH=- thanks, i will try and report back. Is this anyway a chinese version in there? I think i have the same struggle you had days back. Is your phone completely working again?
So sick that my phone did not work. Now working with my "old" LG G2...
I report back later - first family dinner

merlin21 said:
I restored my system from twrp (original first save). But that did not help.
After that i loaded the can-L11c432 update.zip from huawei and extracted with others the system.img - that also did not help to boot.
Tomorrow i flashed the orignal recovery.img from c432 but i did not find an update.zip wich works to manually flash in stock recovery.
@Vinnom the link you shared leads to twrp.img (no system.img).
@-=MoRpH=- thanks, i will try and report back. Is this anyway a chinese version in there? I think i have the same struggle you had days back. Is your phone completely working again?
So sick that my phone did not work. Now working with my "old" LG G2...
I report back later - first family dinner
Click to expand...
Click to collapse
Inside the folder twrp and its subfolders there it is system.img. I'm downloading it myself.
Sent from my victara using XDA Labs

Share if you have another workarounds for me
Gesendet von meinem LG-D802 mit Tapatalk

@merlin21 yes it sounds like my problem after I tried to flash the emui5 beta.
My phone is fully working again with the backup I posted.
This is not the Chinese version, if nothing works, you can try the caz ROM. But there are massive problems with the gapps, they are not included in the rom.
Gesendet von meinem HUAWEI CAN-L11 mit Tapatalk

@ -=MoRpH=-
i just flashed the twrp.img with fastboot from xelfmade v22.12. and then rebooted twrp.
Then formated data and confirmed with yes - rebooted recovery and tried to restore your twrp. It did not restore and aborted instantly with the error message
during restoreing cust...
extractTarFork() proecess ended with ERROR: 255
what could that be?

IT WORKS! Thanks @murph... I had to use the cust from my backup, but with your data partition it successfully booted again. Locking forward if i now have still the problem with read only system partition. I am away setting up phone again (and of course rooting, modifying etc.. but FIRST do a full backup after basic setup and safe in PC !!!)
Thanks!
P.S. how did you manage to back up data partition in recovery? I thought this wouldn't be possible?! What is the cost for having this full working twrp?
PPS. Somehow knock on screen for screenshot does not work - could be, that i have to log in with huawei id... does it work for you morp?

Somehow knock on screen for screenshot does not work - could be, that i have to log in with huawei id... does it work for you morp?
Click to expand...
Click to collapse
That only work if the is not rooted... Idk whats up with that, but for now i use the quicksetting screenshot function.

Somehow it worked with my rooted device before. Must be the decrypted data partition?
With the recovery of your backup I could not access data or change memory from data to sd. What version do you use?
I flashed xelfmades v22 and now have rw access and could backup all partitions and restore. Root and xposed modules everything works, just the knock on screen to capture don't...

merlin21 said:
IT WORKS! Thanks @murph... I had to use the cust from my backup, but with your data partition it successfully booted again. Locking forward if i now have still the problem with read only system partition. I am away setting up phone again (and of course rooting, modifying etc.. but FIRST do a full backup after basic setup and safe in PC !!!)
Thanks!
P.S. how did you manage to back up data partition in recovery? I thought this wouldn't be possible?! What is the cost for having this full working twrp?
PPS. Somehow knock on screen for screenshot does not work - could be, that i have to log in with huawei id... does it work for you morp?
Click to expand...
Click to collapse
I have the same problem! What do you mean by "I had to use the cust from my backup" ? Sadly i dont have any data from my own backup..
can you tell me what to do to get the backup from @murph to work without error?
--solved.

P1xl said:
--solved.
Click to expand...
Click to collapse
May I ask how?
I'm kinda stuck personnaly. I have tried both Nand backups but no cigar. Still can't boot. I had the Data issue which I managed to get rid of.
I still end up with a ExtTarFork 255 kind of error. I tried to change the files attributes via adb shell, but it failed so I've got an OS-Less phone...
Any help would be greatly appreciated.

rak500 said:
May I ask how?
I'm kinda stuck personnaly. I have tried both Nand backups but no cigar. Still can't boot. I had the Data issue which I managed to get rid of.
I still end up with a ExtTarFork 255 kind of error. I tried to change the files attributes via adb shell, but it failed so I've got an OS-Less phone...
Any help would be greatly appreciated.
Click to expand...
Click to collapse
I copied the backup, which is linked somewhere in this thread, to my sdcard and restored it on my Nova using twrp. The extractfork issue showed up while restoring '/cust' so i disselected cust in the restoring menu. After that the restoring worked and my nova was able to boot.
Hope this is any help to you.

P1xl said:
I copied the backup, which is linked somewhere in this thread, to my sdcard and restored it on my Nova using twrp. The extractfork issue showed up while restoring '/cust' so i disselected cust in the restoring menu. After that the restoring worked and my nova was able to boot.
Hope this is any help to you.
Click to expand...
Click to collapse
That didn't do the trick for a while, or I might have forgotten a step, but deselecting CUST did the trick.
Thanks for the tip!
Although, maybe flashing the Cust partition I found in one of the two upgrade zips via fastboot might have helped? I dunno...
But in short, for those who haven't followed through, here's what I did, but I'm not sure this is why it worked:
1. Bricked my device : be sad;
2. DLed all the posted Nandroid backup on this thread and others;
3. With fastboot, reflashed TWRP from Xelfmade using "fastboot flash recovery twrp.img";
4. Flashed the CUST.img I found in the UPDATE.APP of the update_data_full_CAN-L11_hw_eu.zip; or maybe the other, only one of the two seem to have it; I extracted it using Huawei Firmware Extractor; using "fastboot flash cust cust.img";
5. Created a "fake" backup to create the right folder structure on my SD (TWRP Couldn't see the backups) and put the Nandroid Backups I DLed earlier in it;
6. Reboot in TWRP and Restore all partitions except CUST;
7. Reboot, sweat, wait, cry, roll on the floor in fear, heard the huawei startup sound, cried as if it was my first born child;
8. Setup the fone and profit; then enjoy Nova goodness;
92.324. and probably most important, TWRP BAAAACKUUUUP!!!!!
All done!

Thanks for your help my phone is saved with your method!!!

i downgraded my MLA-L03 variant with this, but now im stuck in french language with no other languages to choose from
Vinnom said:
I think that you need a system.img, so you can flash. This system imagem would write everything you need, so you can boot normally.
Have you tried to dowload @bluesmoothie backup from dropbox from the Root and Recovery post?
Here is the link, in case you don't find it https://www.dropbox.com/sh/qrk0fbpn5rnukxn/AAAmhFwBTNoqq0sWfCH-VMHLa?dl=0
Sent from my victara using XDA Labs
Click to expand...
Click to collapse

someone please make this thread sticky!!!!!!!
there are some guides in internet how to get nougat for nova and that is were I broke my phone. I was searching solutions for a week, DLed Flahsed tons of things nothing worked. this one fully worked!!!!!!!!!!!!!!!!!!!!

rak500 said:
That didn't do the trick for a while, or I might have forgotten a step, but deselecting CUST did the trick.
Thanks for the tip!
Although, maybe flashing the Cust partition I found in one of the two upgrade zips via fastboot might have helped? I dunno...
But in short, for those who haven't followed through, here's what I did, but I'm not sure this is why it worked:
1. Bricked my device : be sad;
2. DLed all the posted Nandroid backup on this thread and others;
3. With fastboot, reflashed TWRP from Xelfmade using "fastboot flash recovery twrp.img";
4. Flashed the CUST.img I found in the UPDATE.APP of the update_data_full_CAN-L11_hw_eu.zip; or maybe the other, only one of the two seem to have it; I extracted it using Huawei Firmware Extractor; using "fastboot flash cust cust.img";
5. Created a "fake" backup to create the right folder structure on my SD (TWRP Couldn't see the backups) and put the Nandroid Backups I DLed earlier in it;
6. Reboot in TWRP and Restore all partitions except CUST;
7. Reboot, sweat, wait, cry, roll on the floor in fear, heard the huawei startup sound, cried as if it was my first born child;
8. Setup the fone and profit; then enjoy Nova goodness;
92.324. and probably most important, TWRP BAAAACKUUUUP!!!!!
All done!
Click to expand...
Click to collapse
Hi. First of all, thanks for the tutorial. I've tried it but I have one problem. My /data particion is ext4. Should be f2fs. The thing is I can't convert coz my /data particion is unvisible
Can any help, please?

Bunkier said:
Hi. First of all, thanks for the tutorial. I've tried it but I have one problem. My /data particion is ext4. Should be f2fs. The thing is I can't convert coz my /data particion is unvisible
Can any help, please?
Click to expand...
Click to collapse
Frankly, I don't know. I had not modified the partitions prior to bricking my phone, so I think the partitioning was OK. However, I think one of the TWRP availble in this forum can format Data partition properly, which would utlimately allow you to select which File Format you want. I haven't tried it myself, and I haven't been able to do much with TWRP since I flashed Lineage unfortunately. Most of my Mods were just upgrading and I had to ADB Sideload pretty much everything since I flashed Lineage...
Sorry I couldn't be more helpful than that!

file corruption.

hi, i have a sm-t510 with android 9, and im trying to install twrp but everytime i try i get some kind of wierd file corruption. all my files in sdcar are named with random numbers and letters and there is nothing in it. the tablet boot normaly, but i cant install anything or acces any of my normal file. is there anyway to fix that, or does anyone has a data back up i can use for that version XAC-T510XXU2ASK5. thank you.

cwarrow said:
hi, i have a sm-t510 with android 9, and im trying to install twrp but everytime i try i get some kind of wierd file corruption. all my files in sdcar are named with random numbers and letters and there is nothing in it. the tablet boot normaly, but i cant install anything or acces any of my normal file. is there anyway to fix that, or does anyone has a data back up i can use for that version XAC-T510XXU2ASK5. thank you.
Click to expand...
Click to collapse
Didn't read the instructions very carefully, now did you? The very FIRST thing you need to do when booting to TWRP is to FORMAT THE DATA PARTITION. Not wipe, but FORMAT. The data partition is encrypted and TWRP can't read it. That is why everything looks weird. Also, that is why you need to backup any pictures, downloads or anyting else you want to save because formating the partition will erase EVERYTHING and not just system stuff that wiping deletes.

lewmur said:
Didn't read the instructions very carefully, now did you? The very FIRST thing you need to do when booting to TWRP is to FORMAT THE DATA PARTITION. Not wipe, but FORMAT. The data partition is encrypted and TWRP can't read it. That is why everything looks weird. Also, that is why you need to backup any pictures, downloads or anyting else you want to save because formating the partition will erase EVERYTHING and not just system stuff that wiping deletes.
Click to expand...
Click to collapse
I have been rooting phones and tablet for the past 10 years its the first time it happens. Maybe its something new. Thanks for the info. But i already format the data and evwrything disapeared beside a file named twrp. And i cant reatore the data, cause i didnt have twrp to back them up. So if you have another sugestion, i am all ear

cwarrow said:
I have been rooting phones and tablet for the past 10 years its the first time it happens. Maybe its something new. Thanks for the info. But i already format the data and evwrything disapeared beside a file named twrp. And i cant reatore the data, cause i didnt have twrp to back them up. So if you have another sugestion, i am all ear
Click to expand...
Click to collapse
My post pointed out that formatting would erase everything and that you should backup prior to doing it. And there are several other methods of backing up data and apps besides TWRP. Yes, it leaves the data partition blank, but flashing a ROM and gapps will put the directories back. Of course, they will still be empty. If you used a Google Account, then that should have at least backed up your apps and some settings. When you setup a new ROM, it should let you restore them.
BTW, yes it was the first time it happened for most of us. Samsung keeps trying to improve "security" and adding encryption, by default, to the data partition is in all of their new tablets and phones.

lewmur said:
My post pointed out that formatting would erase everything and that you should backup prior to doing it. And there are several other methods of backing up data and apps besides TWRP. Yes, it leaves the data partition blank, but flashing a ROM and gapps will put the directories back. Of course, they will still be empty. If you used a Google Account, then that should have at least backed up your apps and some settings. When you setup a new ROM, it should let you restore them.
BTW, yes it was the first time it happened for most of us. Samsung keeps trying to improve "security" and adding encryption, by default, to the data partition is in all of their new tablets and phones.
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my point is that i want to keep the stock rom, i was able to install a costum rom no problem after. but it doesnt work with the stock rom

cwarrow said:
my point is that i want to keep the stock rom, i was able to install a costum rom no problem after. but it doesnt work with the stock rom
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You can't backup a stock ROM with TWRP because it can't handle the encryption. But you can use TWRP to root a stock ROM. In that case you just ignore the wierd internal data and put what you want to flash only on the external SD. IOW, if your reason for flashing TWRP is to use its backup function on a stock, don't bother, it won't work. But if your intent is to ROOT the stock ROM, then go ahead, but DON'T format data. Just put the files needed to root on the external SD and flash from there. You format the data partition in order to flash a custom ROM.

lewmur said:
You can't backup a stock ROM with TWRP because it can't handle the encryption. But you can use TWRP to root a stock ROM. In that case you just ignore the wierd internal data and put what you want to flash only on the external SD. IOW, if your reason for flashing TWRP is to use its backup function on a stock, don't bother, it won't work. But if your intent is to ROOT the stock ROM, then go ahead, but DON'T format data. Just put the files needed to root on the external SD and flash from there.
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yeah but, i stil have the same problem though, i still cant use my tablette properly. i cant install new games and other app. but anyway i already rooted my stock firmware using magisk. but thanks anyway for the help
its just that i dont like the custom firware we have for it, and the stock firmware is slow af. but ill end up probably falshing a custom firmware anyway. have a good day.