Database Develop

Bootloop and "unable to mount data"

Hey guys,
Need some help here as I've checked everywhere I possibly can and can't find the answer. I've rooted phone then installed miui 6 rom which worked but i didnt like it. Then I tried to install my rom 3.3 and everything got fuked up. Now when i power on my phone it is in bootloop. At this moment i am only able to use twrp 2.7.1.0(only recovery that is working) and fastboot. I've tried wiping data through recovery and still nothing. Anyways my bootloader isunlocked. .
Also I've tried the forced update method to get it working again but for some reason I cant start it, just a bootloop.
When i try to install custom rom it just give me message "unable to mount data". Same message i get when i try to do factory reset or wipe data.
Appreciate the help guys.

Tomislav995 said:
Hey guys,
Need some help here as I've checked everywhere I possibly can and can't find the answer. I've rooted phone then installed miui 6 rom which worked but i didnt like it. Then I tried to install my rom 3.3 and everything got fuked up. Now when i power on my phone it is in bootloop. At this moment i am only able to use twrp 2.7.1.0(only recovery that is working) and fastboot. I've tried wiping data through recovery and still nothing. Anyways my bootloader is unlocked. .
Also I've tried the forced update method to get it working again but for some reason I cant start it, just a bootloop.
When i try to install custom rom it just give me message "unable to mount data". Same message i get when i try to do factory reset or wipe data.
Appreciate the help guys.
Click to expand...
Click to collapse
The force update will not work since you replaced the stock recovery from Huawei with TWRP.
Follow these steps:
1. Go to Huawei's website and download the UPDATE.APP package.
2. Go to Huawei's website and download the Update Extractor tool.
3. Use the downloaded tool to extract the UPDATE.APP package. Then you should have a folder filled with .img files such as system.img, recovery.img etc.
4. Connect your device to your PC and enter fastboot on your Ascend P7 device
5. Open up Command Prompt or Terminal (cmd for Windows, terminal for Linux) and go to the directory where fastboot is installed
6. Check to see if your PC finds your device using the command: "fastboot devices". If successful, you should find your phone listed.
7. Flash this partition images using these commands:
"fastboot flash boot /path/to/your/images/boot.img"
"fastboot flash system /path/to/your/images/system.img"
"fastboot flash cache /path/to/your/images/cache.img"
"fastboot flash cust /path/to/your/images/cust.img"
"fastboot flash userdata /path/to/your/images/userdata.img"
5. Reboot your device
Now if successful, your phone should have EMUI installed on it. Hope this helps you.

MihaiChirculete said:
The force update will not work since you replaced the stock recovery from Huawei with TWRP.
Follow these steps:
1. Go to Huawei's website and download the UPDATE.APP package.
2. Go to Huawei's website and download the Update Extractor tool.
3. Use the downloaded tool to extract the UPDATE.APP package. Then you should have a folder filled with .img files such as system.img, recovery.img etc.
4. Connect your device to your PC and enter fastboot on your Ascend P7 device
5. Open up Command Prompt or Terminal (cmd for Windows, terminal for Linux) and go to the directory where fastboot is installed
6. Check to see if your PC finds your device using the command: "fastboot devices". If successful, you should find your phone listed.
7. Flash this partition images using these commands:
"fastboot flash boot /path/to/your/images/boot.img"
"fastboot flash system /path/to/your/images/system.img"
"fastboot flash cache /path/to/your/images/cache.img"
"fastboot flash cust /path/to/your/images/cust.img"
"fastboot flash userdata /path/to/your/images/userdata.img"
5. Reboot your device
Now if successful, your phone should have EMUI installed on it. Hope this helps you.
Click to expand...
Click to collapse
I tried that long ago, but it said it cant write to data or smth like that.

[Solved] Error while flashing Katkiss from CWM v6.0.5.0

Dear friends I need help!
I've tried to flash my tablet but I've got an error message while flashing Katkiss 6.0
What I did:
downloaded Rom.(md5sum is OK)
my bootloader is ww_epad-11.4.1.17-20140711
recovery CWM v6.0.5.0
previous rom zoombi pop
/format data
wipe data factory reset
install zip from sd card. (from internal storage or micro sd card)
And I have got the following error (in attachement)
Please help, my tablet boot only recovery now.
Thanks in advance for the help

trying to boot in fastboot mode when children let me try that...
Edit: fastboot ok.
I placed the the files
KatKiss-6.0_TF701T_033.zip
open_gapps-arm-6.0-pico-20170120.zip
UPDATE-SuperSU-v2.79-20161211114519.zip
In
C:\Program Files (x86)\Minimal ADB and Fastboot

ok I don't know how to proceed now.
Seems I cannot change the recovery from CMW to TWRP,
My bootloader is 11.4.1.17 and the tutorial to install TWRP says in capital red:
MUST BE ON A BOOTLOADER 11.4.1.27, 11.4.1.29 or 11.4.1.30
So how can I do?
I there a way to upgrade the bootloader to be able to install TWRP?
Or should I Flash the custom rom from fastboot?
My TF701 in not booting anymore.... only bootloader and recovery CMW
the positive thing is :
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot devices
15C3E10090400000011FA8580 fastboot
Please help

I have been able to flash CROMI X (unfortunately with strong battery drain) so CMW is able to flash but for some reasons not Katkiss 6.0.
I have been told that my problem is not ROM related... So it is recovery related?
What is the better option to get katkiss on my tablet? Flash the recovery to get TWRP even if my bootloader is 11.4.1.17 and the tutorial to install TWRP says in capital red:
MUST BE ON A BOOTLOADER 11.4.1.27, 11.4.1.29 or 11.4.1.30????
There is a technical reason about this warning?
Edit: I found this on an old post:
You can try this:
Download the stock recovery from here: http://droidbasement.com/db-blog/?p=3210
Copy the image to your fastboot folder.
Download the Asus firmware, unzip the file once and copy it to your internal SD.
Boot tablet into fastboot
Issue this command
Code:
fastboot boot recovery.img
Note: Do not flash the recovery, just boot it.
It should recognize the firmware file on your tablet and flash it.
Click to expand...
Click to collapse
Would this method work to get the latest stock rom from Asus?

Got your PM and will try to find some time at work today. Hang in there and don't do anything to make it worse

Ok, work was crazy busy so it took a bit longer.
If you flash a recovery that is incompatible with the bootloader nothing happens. Until you use the recovery... That could permanently brick the tablet. So heed the warnings, they are there for a reason.
Ok, let's try to get you on the latest bootloader. It's no suprise at all that nothing boots if you try to flash a Android 6 rom on an Android 4 bootloader....
Download either WW or US package from here: https://forum.xda-developers.com/showpost.php?p=61045480&postcount=2
That zip contains the latest bootloader and a compatible TWRP recovery. Flash the zip in your current recovery just like any rom, then reboot.
When you flash a bootloader or recovery you actually write those files to the staging partition. On the next boot the bootloader will unpack it and write everything to it's proper place.
So it's essential that you flash, then reboot. Does not matter that the boot does not go anywhere. The first part, flashing the contents of /staging to it's partition(s), will happen anyway.
You should see a brief blue bar filling up when that happens. It does not take long.
Boot back into fastboot and check your bootloader version.
Enter recovery through RCK and that should be TWRP now.
Then format /data. Do not wipe it, format it. Do not interrupt it. Wait for it to finish even if it takes an hour (a full battery is a must before you start this). The format command is under the Wipe menu.
Unfortunately the formatting in this kanged TWRP is pretty buggy, but I still like it better than CWM.... If you get lots of error messages after the format (cannot mount this, cannot mount that) go into Wipe > Advanced > select Data > Change or repair file system > Change file system > choose ext3 and execute
Note: The button you have to swipe is pretty "sticky". Swipe it slowly and fully
Reboot to recovery
Go back into Wipe > Advanced etc and change the file system back to ext4
Reboot to recovery
Now everything should be ok, try to mount/unmount data.
Finally you are ready to flash Katkiss
If the bootloader flash does not work, we can try to flash Asus firmware in fastboot, but try the above first.

berndblb said:
Ok, work was crazy busy so it took a bit longer.
If you flash a recovery that is incompatible with the bootloader nothing happens. Until you use the recovery... That could permanently brick the tablet. So heed the warnings, they are there for a reason.
Ok, let's try to get you on the latest bootloader. It's no suprise at all that nothing boots if you try to flash a Android 6 rom on an Android 4 bootloader....
Download either WW or US package from here: https://forum.xda-developers.com/showpost.php?p=61045480&postcount=2
That zip contains the latest bootloader and a compatible TWRP recovery. Flash the zip in your current recovery just like any rom, then reboot.
When you flash a bootloader or recovery you actually write those files to the staging partition. On the next boot the bootloader will unpack it and write everything to it's proper place.
So it's essential that you flash, then reboot. Does not matter that the boot does not go anywhere. The first part, flashing the contents of /staging to it's partition(s), will happen anyway.
You should see a brief blue bar filling up when that happens. It does not take long.
Boot back into fastboot and check your bootloader version.
Enter recovery through RCK and that should be TWRP now.
Then format /data. Do not wipe it, format it. Do not interrupt it. Wait for it to finish even if it takes an hour (a full battery is a must before you start this). The format command is under the Wipe menu.
Unfortunately the formatting in this kanged TWRP is pretty buggy, but I still like it better than CWM.... If you get lots of error messages after the format (cannot mount this, cannot mount that) go into Wipe > Advanced > select Data > Change or repair file system > Change file system > choose ext3 and execute
Note: The button you have to swipe is pretty "sticky". Swipe it slowly and fully
Reboot to recovery
Go back into Wipe > Advanced etc and change the file system back to ext4
Reboot to recovery
Now everything should be ok, try to mount/unmount data.
Finally you are ready to flash Katkiss
If the bootloader flash does not work, we can try to flash Asus firmware in fastboot, but try the above first.
Click to expand...
Click to collapse
Thanks a lot to take time to help me.
Will try that tonight and I'll let you know the result.

Thanks a lot!
It was just like you said.
I had to format to ext3 and ext4 because I had errors.
Battery seems to be very good. Just the screen display is very white, needs color saturation and contrast I guess...
Thanks again you save my tablet.

Now that's what I like to read! :cyclops:

Updated my Root OnePlus 3t and now it will only boot to TWRP

Hello Everyone,
I have been pushing off the latest small update to the Oneplus 3t, as last time i updated it did the same thing.
I updated by mistake and now it will not get past the TWRP not matter what I try. Last time I had to wipe everything and use a latest image.
Before I try this does anyone know how I reboot to the system.
I even tried to restore a TWRP backup from Jan 15th and that didn't help.
Any help would be appreciated. and assistance on how to take upgraded without semi-bricking this phone.
Thanks

If you tried to restore a TWRP back-up and it didn't work then the only way is either:
adb push rom.zip /sdcard/ flash and reboot
adb sideload rom.zip (TWRP advanced menu)
but did you try and wipe everything (except internal storage) then restore the backup?

A Sad Napkin said:
If you tried to restore a TWRP back-up and it didn't work then the only way is either:
adb push rom.zip /sdcard/ flash and reboot
adb sideload rom.zip (TWRP advanced menu)
but did you try and wipe everything (except internal storage) then restore the backup?
Click to expand...
Click to collapse
I did not try to wipe, it seems the restore did that automatically

wiped except internal and flashed the latest Oneplus 3t Rom and still at the twrp screen, says no OS installed.

Can't get anyone where with this
I have no more TWRP, just the Oxygen Recovery, and in Sideload Mode and can not abd sideload rom.zip as it says cannot read rom

get the full official rom (zipfile) find it somewhere here on the forum or from OnePlus Suppport page, put it in the same folder as your adb.exe and then
Code:
adb sideload [zipfile]

Need workaround for flashing custom to my quirky N6

One of my N6s has a little trouble doing ADB.
When it's in stock, the phone will only accept ADB commands and show up in ADB Devices when the USB mode is set to MIDI. It doesn't work with ADB in MTP mode. But in MTP mode, I can drop files to the phone from Windows File Manager, but no ADB. In TWRP recovery mode, with MTP on I can't drop files to the phone. In TWRP, if I disable MTP, the phone no longer shows up in Windows. That's the background on this phone.
I'm trying to flash Pure Nexus, GApps, Magisk, and Franco Kernel to this phone without encrypting it.
As a starter step, I have flashed stock and TWRP to it without rebooting to the stock ROM (which would encrypt the phone).
(Note I know many people say encryption doesn't matter for better performance. Let's not get distracted by that discussion here. I'm trying to see if I can flash this custom setup without encrypting.)
I now need to get the Zips for PN, GApps, Magisk, and Franco onto the phone but am unable to use adb push command or Windows File Manager to drop those files.
So it has fresh stock and TWRP on it. Now when the phone is in TWRP, and I try to "adb push ROM.zip" I get an error: failed to get feature set: no devices/emulators found If I try adb devices it returns a blank list.
So while TWRP is on the phone i don't know other ways to push the Zips over to a folder on the phone.
In Windows File Manager I can see the device Nexus 6 and inside of that is Internal Storage. If I try to drop files to Internal Storage using Windows, it processes for a long time and hangs.
In Windows File Manager I cannot create a new folder on the phone when it's in TWRP mode.
In TWRP, Mount, the default boxes checked are Data and Cache. Others aren't checked.
Is there some other trick to getting those Zips onto the phone without booting the phone into Stock, thus encrypting the data? Thanks

wittier said:
One of my N6s has a little trouble doing ADB.
When it's in stock, the phone will only accept ADB commands and show up in ADB Devices when the USB mode is set to MIDI. It doesn't work with ADB in MTP mode. But in MTP mode, I can drop files to the phone from Windows File Manager, but no ADB. In TWRP recovery mode, with MTP on I can't drop files to the phone. In TWRP, if I disable MTP, the phone no longer shows up in Windows. That's the background on this phone.
I'm trying to flash Pure Nexus, GApps, Magisk, and Franco Kernel to this phone without encrypting it.
As a starter step, I have flashed stock and TWRP to it without rebooting to the stock ROM (which would encrypt the phone).
(Note I know many people say encryption doesn't matter for better performance. Let's not get distracted by that discussion here. I'm trying to see if I can flash this custom setup without encrypting.)
I now need to get the Zips for PN, GApps, Magisk, and Franco onto the phone but am unable to use adb push command or Windows File Manager to drop those files.
So it has fresh stock and TWRP on it. Now when the phone is in TWRP, and I try to "adb push ROM.zip" I get an error: failed to get feature set: no devices/emulators found If I try adb devices it returns a blank list.
So while TWRP is on the phone i don't know other ways to push the Zips over to a folder on the phone.
In Windows File Manager I can see the device Nexus 6 and inside of that is Internal Storage. If I try to drop files to Internal Storage using Windows, it processes for a long time and hangs.
In Windows File Manager I cannot create a new folder on the phone when it's in TWRP mode.
In TWRP, Mount, the default boxes checked are Data and Cache. Others aren't checked.
Is there some other trick to getting those Zips onto the phone without booting the phone into Stock, thus encrypting the data? Thanks
Click to expand...
Click to collapse
SUCCESS
Update: with some manipulation in TWRP, I was able to get a file system I could see and drop files to from Windows.
After flashing stock, and TWRP, and booting to TWRP (without ever booting to system/stock, which would have encrypted phone) i did the following.
I'm trying to remember all the steps but I think that Wiping the data and cache partitions via TWRP was the key, and required before I could move zips over to the phone.
I dropped the Pure Nexus, GApps, and Magisk onto the phone and then flashed them in that order via TWRP
Rebooted to system.
It installed and set up under Pure Nexus. It's reloading my apps from my Google account.
I checked Settings, Security and the phone is not encrypted.
I haven't yet checked on the GApps and Magisk. I assume I can install Franco Kernel from the Franco Manager app that I bought.

When you can't transfer files from PC to the N6:
Remove the drivers of the PC and let Windows search for the latest drivers.
Check on https://dl.twrp.me if you have the latest version of TWRP.

NLBeev said:
When you can't transfer files from PC to the N6:
Remove the drivers of the PC and let Windows search for the latest drivers.
Check on https://dl.twrp.me if you have the latest version of TWRP.
Click to expand...
Click to collapse
thanks. it is the latest TWRP.
I fixed it, see above, it wasn't the drivers on the PC.
The PC works with my other N6. This N6 has issues.
The workaround of wiping in TWRP fixed it. I don't know yet if I'd have to do the same wipe with my better N6. Will find out soon.

wittier said:
... I don't know yet if I'd have to do the same wipe with my better N6. Will find out soon.
Click to expand...
Click to collapse
Updating TWRP to the latest version is a good practice.

wittier said:
SUCCESS
Update: with some manipulation in TWRP, I was able to get a file system I could see and drop files to from Windows.
After flashing stock, and TWRP, and booting to TWRP (without ever booting to system/stock, which would have encrypted phone) i did the following.
I'm trying to remember all the steps but I think that Wiping the data and cache partitions via TWRP was the key, and required before I could move zips over to the phone.
I dropped the Pure Nexus, GApps, and Magisk onto the phone and then flashed them in that order via TWRP
Rebooted to system.
It installed and set up under Pure Nexus. It's reloading my apps from my Google account.
I checked Settings, Security and the phone is not encrypted.
I haven't yet checked on the GApps and Magisk. I assume I can install Franco Kernel from the Franco Manager app that I bought.
Click to expand...
Click to collapse
I updated my other N6 last night.
After flashing stock ROM and TWRP and booting to TWRP only, I didn't have to wipe before I could push files to the phone.
The other phone is more difficult.

Advanced advice for internal storage recovery after attempted flash to LineageOS 17

Hi everyone. Got a puzzle for you forensic data recovery guys out there. I am a fool having a bad day today. For the first time in 10 years of screwing with Android, I backed up my ROM with twrp and also backed up my sms and calls, but then managed to somehow forget to copy those files off the internal storage before trying to flash my phone to LineageOS and botching the internal storage. Here is what happened.
0) Before state: Rooted (I think) and for sure running OxygenOS 5.0.3, flashed via TWRP. TWRP version 3.2.1-0. 128 GB OnePlus 3T
1) Backed up System, data, etc to backup on internal storage via TWRP. Booted into OS and backed up SMS and calls to .xml file.
2) Wiped data, system, cache and dalvik/art cache.
3) Downloaded LineageOS w/ microG via zip in TWRP and attempted to install. Received error that I needed to update the modem to at least 9.0.3.
4) Mounted storage from TWRP and copied in Stable9.0.3+Firmware+Modem_OnePlus+3T.zip. Ran the install and was successful.
5) Installed lineage-17.1-20200826-microG-oneplus3.zip via TWRP. Left prompt to install TWRP checked and booted into OS.
6) Upon boot, saw the message: "Decryption unsuccessful" The password that you entered is correct but unfortunately your data is corrupt.
7) Rebooted back into TWRP to mount storage. Could not get anything to mount because it would not accept my decrypt passcode.
8) Figured TWRP bug, flashed twrp-3.4.0-0-oneplus3.img via fastboot. Could decrypt now with passcode but all storage read 0MB
9) Flashed modem back to OnePlus3T_5.0.3-25-05-18-FIRMWARE-flashable.zip via adb sideload method which is what I assume I was running before since that was the OS version. Rebooted
10) Booted back into TWRP, discovered I still couldn't see files. Downgraded TWRP back to 3.2.1-0 via fastboot.
11) Unable to decrypt from TWRP or even install zips. No change at any point in the OS. Flashed TWRP back to 3.4.0.0.
12) Ran adb shell twrp decrypt XXXXXX (where XXXXXX is my pin) which gave me this message:
Attempting to decrypt data partition or user data via command line.
(then it returned to shell so I assume it worked)
13) Ran an ADB pull command (adb pull /dev/block/dm-0 backup.img). There is obviously something there because it downloaded 111 GB worth of .img file (which I'm 99% certain was the amount of space I had used on the phone). Tried to open the .img file with multiple EXT4 programs and they all said the file/partition was corrupt.
14) Tried to wipe data via TWRP. Failed to wipe because it couldn't be mounted. Followed this:
https://************/how-to-fix-twrp-unable-to-mount-storage-internal-storage-0mb/
15) Ended up with MTP mount of 101 GB free space. Everything seems to be lost on the phone at present. No programs I use to recover the data off the MTP mount (just doing a raw file scrape) can see it as a OnePlus in Windows.
After finding a better guide on XDA, it sounds like this is a known issue that happens when you go from 5.0.x to 9.x on this phone where your encryption breaks and you lose all files. Unfortunately I saw that about 15 minutes after step 14...
My next thoughts would be to:
a) downgrade everything (ROM, firmware, etc) and then try to push the 111 GB .img file back to the phone via ADB, then flash a stock OnePlus 5.0.3 ROM over it to see if I could get the internal storage to mount again. Don't even need to boot into the OS--just to get the internal storage mounted again through TWRP.
--OR--
b) convert the .img file to a .raw and then possibly a .vhd and use Recuva or something to scan the image of the phone and see if I can find those .xml files and maybe a twrp backup if I'm lucky. Although if the entire .img contents is still encrypted and not actually just a corrupt android filesystem, I think I am hosed on this option.
I would prefer option a) but I didn't know if anyone had any insight on this. I thought maybe there would be a way for me to get into the filesystem via ADB maybe and clear out some botched encryption cache or keystore/etc in order to get it to mount again. I'm also not sure if you're able to downgrade the firmware or modem either from 9 to 5 (even though I never got errors on downgrade). Thoughts? Am I just royally hosed?

Tried option b. Nothing but garbage. I made a backup of the .img file this time... so still would be willing to try option a) unless anyone thinks that this is impossible.
Edit: yep... may be too late... https://forum.xda-developers.com/on...-9-0-3-5-0-8-firmware-barrier-t3941164/page18

To my knowledge the data partitions content is unrecoverable lost after the reboot from 5) to 6). The img contains the messed up (and still encrypted) dm0 container but without the enctyption footer which is "outside" the dm0 container in sda15 (aka userdata) partition. To decrypt the img you are missing the device dependent key (an encrypzed partition can be decrypted only on the device the enctyption has been done on) as well as the encryption footer (which is messed up after the reboot).
Format data (not only wipe!) and start over.

Thanks for the reply. That makes sense and is what I was afraid of.
I wonder if it would be possible to regenerate the crypto footer by doing something like this to get the HMAC keys and then flashing a rom to recreate the cryptofooter and then editing the key values to reflect the old cryptofooter values based on the KeyMaster extraction via this exploit.
http://bits-please.blogspot.com/2016/06/extracting-qualcomms-keymaster-keys.html?m=1
It might depend on how much of the cryptofooter is left and whether or not 5.0.3 is vulnerable to these CVEs...
I’m not sure if I know enough about the KeyMaster structure to know how to rebuild it even if I were able to retrieve the HMAC keys.
I also know TWRP now supports EDL so perhaps there is something with a Qualcomm tool I could yse to assist.
Obviously this would mean security issues for everyone on these older builds if I am able to regenerate the crypto footer.
Are you aware of adb commands or likewise that I could run to survey the KeyMaster damage?

As stated: to my knowledge the data is lost after the first reboot with the 9.0.x bootloader.
If you search the official los thread (don't remember if 17 or 16) you'll find some detaled postings on restoring the keys after updating the bl from 5.0.x to 9.0.x. The user, who has examined that has failed, but perhaps it helps to shine some light on your questions.