How to backup my system before flashing cm? - X 2014 Q&A, Help & Troubleshooting

I got the TWRP recovery.
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Nexus One can't mount system

I don't know what I did
One day, my Nexus One can't flash anything . I finally realize the problem is that it can't mount system
I can't flash anything , ROMs, partitions, etc
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Does your recovery work or does it boot into recovery safe mode?
If yes then, your system partition may be corrupted. If you can use fastboot then flash the recovery.
Try it. Recently I had a similar issue.
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How do I flash the recovery?
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I have no PC available right at this moment
Would a passimg work?
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[Q] TWRP Recovery

Hi,
I have taken nandroid backup using TWRP Recovery.
I have installed paranoid android after unlocking the bootloader.
So i have CWM now.
But now i want to go back to my Backup which i took earlier. But the CWM is not recognizing my backup.
Now i want to install the TWRP recovery back. Please Help.
Flash a kernel with twrp in it and then boot to recovery and restore the backup
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Restore kernel

Can I restore previous kernel by restoring boot image in twrp or do I have to do system and boot?
Has anyone had trouble restoring a boot image in twrp?
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Rom Flashing Issue - System Partition Read Only

Hello. I had an issue in TWRP when I tried to flash a rom I got the error that system was set to read only. Recovery allowed me to wipe system. I tried a few times and decided to restore my nandroid. I got the same error. I panicked, tried 4 more times, and it finally restored. I know the rom I was good (Resurrection,) as I checked the MD5. I also have flashed supersu and xposed. I am on the stock rom now. When I searched for a root cause, I only found it for other phones. Any ideas? Thanks.
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When you first installed twrp did it ask you to allow read/write to system?
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I don't believe so, but I am assuming I would have selected the correct option as I was able to flash super user. Thanks for the reply though!
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Use TWRP Manager to refresh the recovery, and try again
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meskes said:
Use TWRP Manager to refresh the recovery, and try again
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I hadn't thought of that. Will do!
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zeyrah said:
I hadn't thought of that. Will do!
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So TWRP app said it could not flash due to error or already having the current recovery. I'll try flashify.
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zeyrah said:
So TWRP app said it could not flash due to error or already having the current recovery. I'll try flashify.
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Reflashed and tried a different rom. Same issue. Thoughts on cm recovery?
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Did you flash the correct version of TWRP via fastboot?
http://forum.xda-developers.com/mot...recovery-twrp-2-8-7-0-touch-recovery-t3180308
It will ask you to allow system write when you boot into it the first time.
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SpyderPride said:
Did you flash the correct version of TWRP via fastboot?
http://forum.xda-developers.com/mot...recovery-twrp-2-8-7-0-touch-recovery-t3180308
It will ask you to allow system write when you boot into it the first time.
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I did. I reset defaults and it asked me again. I am at a loss. While I am no developer, (you all are amazing, ) I have rooted every device I have had. I am at a loss. You are all amazing at what they u do.
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zeyrah said:
I did. I reset defaults and it asked me again. I am at a loss. While I am no developer, (you all are amazing, ) I have rooted every device I have had. I am at a loss. You are all amazing at what they u do.
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I am certainly not a developer either, I just like tweaking my phone and I try to be super careful about following directions when it comes to things like modifying boot, recovery, system and so forth.
I wonder if flashing the proper stock recovery, then flashing TWRP again would work? Please get feedback on this as I am not sure if it is safe. Also maybe check the md5 on the TWRP download.
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Still failed.... Bummer...
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zeyrah said:
Still failed.... Bummer...
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You are seeing the slider bar at the bottom of the screen when TWRP asks to allow system write, correct?
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SpyderPride said:
You are seeing the slider bar at the bottom of the screen when TWRP asks to allow system write, correct?
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Click to expand...
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Right
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Here is the error I am getting in recovery. "You have an installed system that isn't signed with this build's key, aborting...
run_program: child exited with status 124
script aborted: Can't install this package on top of incompatible data. Please try another package or run a factory reset
Can't install this package on top of incompatible data. Please try another package or run a factory reset
I:Legacy property environment disabled.
E:Error executing updater binary in zip '/sdcard/Download/cm-12.1-20160106-NIGHTLY-quark.zip'
Error flashing zip '/sdcard/Download/cm-12.1-20160106-NIGHTLY-quark.zip'" Thoughts?
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zeyrah said:
Here is the error I am getting in recovery. "You have an installed system that isn't signed with this build's key, aborting...
run_program: child exited with status 124
script aborted: Can't install this package on top of incompatible data. Please try another package or run a factory reset
Can't install this package on top of incompatible data. Please try another package or run a factory reset
I:Legacy property environment disabled.
E:Error executing updater binary in zip '/sdcard/Download/cm-12.1-20160106-NIGHTLY-quark.zip'
Error flashing zip '/sdcard/Download/cm-12.1-20160106-NIGHTLY-quark.zip'" Thoughts?
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Did u modify the rom before flash?
I was a moron and was not wiping /data as I thought it would wipe internal storage. Sorry all!
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zeyrah said:
I was a moron and was not wiping /data as I thought it would wipe internal storage. Sorry all!
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Glad you got it and learned something. We all make mistakes!
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USB-OTG Help w/ TWRP

Hi there.
I'm having trouble getting USB-OTG to mount in TWRP 2.8.7.1. I'm on mikeoswego's stock xt1096 ROM (Verizon).
I formatted my 16GB flash drive FAT32. It shows up and mounts fine within the OS. I even backed up my apps with Titanium Backup to the flash drive.
My issues start when I reboot into recovery. I'm unable to mount USB-OTG and it shows up as 0 MB.
Has anyone run into this issue before? Any solutions or tips?
Thanks.
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You can try with twrp 2.8.7.0 version... I think it will help you...
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varinder jaswal said:
You can try with twrp 2.8.7.0 version... I think it will help you...
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Thanks. I didn't try 2.8.7.0, but did upgrade to TWRP 3.0.2. It's working on that version
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