Develop Bugs

Unable to mount partitions after flashing TWRP on Nexus 7 (2013, WiFi, flo)

I just bought this device a week and I haven't even rooted I wanted to install Cyanogenmode and follow through the instructions and flashed TWRP through fastboot commands from Windows7 using Minimal ADB and Fastboot [8-28-15].
I got the TWRP recovery but I am not sure what have I done wrong, when I am in the TWRP recovery, it does not show any partitions so I am unable to install any ROM on it.
I have also tried to use this thread: http://forum.xda-developers.com/nexus-7-2013/nexus-7-2013-qa/mount-recovery-t3064562 when I flash the given recovery from fastboot commands from this thread, the recovery get stuck with bootloop. So then I restored it back to the original TWRP 2.8.7.0.
So at this point now I can only access bootloader and the recovery which does not show partitions.
At this point Is it possible for me to go back to the stock ROM somehow? Please advice. Otherwise I might be able to return it because I have only bought it few days ago.
SOLVED: To get TWRP to work, I flashed the original stock ROM from here https://developers.google.com/androi...s/images?hl=en using adb. I then flashed this TWRP multirom https://s.basketbuild.com/filedl/dev...o_20150630.img
This allowed TWRP to work.
Thanks to Batfink33 and lynnux

You can follow this guide to flash the newest factory image: http://androidforums.com/threads/guide-how-to-flash-a-nexus-factory-image-manually.706533/. You should just download the latest factory image from: https://developers.google.com/android/nexus/images?hl=en the one in the guide is outdated.

Join the club, I did the same thing you did with the same results(even flashing the multirom twrp after flashing the regular one, and getting the recovery bootloop). I happened to find the same instructions theminikiller posted above after pulling my hair out trying to figure out what went wrong.
This post http://forum.xda-developers.com/showpost.php?p=62275723&postcount=558 explains what's going on. If you do the above and then flash the multirom twrp it should work fine, it did for me. I also reformatted system in adb after erasing everything, not sure if that was necessary or not.

lynnux said:
Join the club, I did the same thing you did with the same results(even flashing the multirom twrp after flashing the regular one, and getting the recovery bootloop). I happened to find the same instructions theminikiller posted above after pulling my hair out trying to figure out what went wrong.
This post http://forum.xda-developers.com/showpost.php?p=62275723&postcount=558 explains what's going on. If you do the above and then flash the multirom twrp it should work fine, it did for me. I also reformatted system in adb after erasing everything, not sure if that was necessary or not.
Click to expand...
Click to collapse
Did the multirom TWRP work for you? I get a bootloop in TWRP when I flash that multirom TWRP posted.

Batfink33 said:
Did the multirom TWRP work for you? I get a bootloop in TWRP when I flash that multirom TWRP posted.
Click to expand...
Click to collapse
It worked for me, but only after erasing everything via adb and reflashing all the stock images. I got the bootloop when I flashed the regular twrp first, then the multirom twrp. Also, I'm using the most recent multirom twrp from June (I believe).

lynnux said:
It worked for me, but only after erasing everything via adb and reflashing all the stock images. I got the bootloop when I flashed the regular twrp first, then the multirom twrp. Also, I'm using the most recent multirom twrp from June (I believe).
Click to expand...
Click to collapse
Yay, it works for me now. I had to install the stock ROM using adb then flash the multirom TWRP. Thanks!

Batfink33 said:
Yay, it works for me now. I had to install the stock ROM using adb then flash the multirom TWRP. Thanks!
Click to expand...
Click to collapse
Thanks for your replies here. Could you please give me the link to the multiroom Recovery that had worked for you? Also did you installed Cynageon mode after getting the mutliroom TWRP working? Please advice

a4abbas said:
Thanks for your replies here. Could you please give me the link to the multiroom Recovery that had worked for you? Also did you installed Cynageon mode after getting the mutliroom TWRP working? Please advice
Click to expand...
Click to collapse
To get TWRP to work, I flashed the original stock ROM from here https://developers.google.com/android/nexus/images?hl=en using adb. I then flashed this TWRP multirom https://s.basketbuild.com/filedl/de...//multirom/flo/TWRP_multirom_flo_20150630.img
This allowed TWRP to work.

Batfink33 said:
To get TWRP to work, I flashed the original stock ROM from here https://developers.google.com/android/nexus/images?hl=en using adb. I then flashed this TWRP multirom https://s.basketbuild.com/filedl/de...//multirom/flo/TWRP_multirom_flo_20150630.img
This allowed TWRP to work.
Click to expand...
Click to collapse
Is it required to enable Developer options at some point of flashing it successfully? I am in China and here the google is blocked i bought this tablet and I can not get through the first screen that ask me to connect the wifi (no option to skip it unless i connect to wifi) then after loading it gets error message that it is failed to connect to internet. So just understand that I can not goto the device options right now. So is it possible to flash cynagonmode rom without enabling developer option. Please advice

a4abbas said:
Is it required to enable Developer options at some point of flashing it successfully? I am in China and here the google is blocked i bought this tablet and I can not get through the first screen that ask me to connect the wifi (no option to skip it unless i connect to wifi) then after loading it gets error message that it is failed to connect to internet. So just understand that I can not goto the device options right now. So is it possible to flash cynagonmode rom without enabling developer option. Please advice
Click to expand...
Click to collapse
No, it's not required. Just turn off your device. Then to boot into the bootloader hold volume down + power button until it's done booting. From there you can follow other guides to unlock the bootloader and installing custom recovery and Rom's.

theminikiller said:
No, it's not required. Just turn off your device. Then to boot into the bootloader hold volume down + power button until it's done booting. From there you can follow other guides to unlock the bootloader and installing custom recovery and Rom's.
Click to expand...
Click to collapse
I have tried to do it. But the device is not being recognized with the ADB tools on my PC. Any ideas? Could it be because of the USB debugging option?

a4abbas said:
I have tried to do it. But the device is not being recognized with the ADB tools on my PC. Any ideas? Could it be because of the USB debugging option?
Click to expand...
Click to collapse
When you are in the bootloader it doesn't matter if you have USB debugging enabled or not. It could be a problem with your driver's.

theminikiller said:
When you are in the bootloader it doesn't matter if you have USB debugging enabled or not. It could be a problem with your driver's.
Click to expand...
Click to collapse
You must be right, it make sense.

TWRP bootloops

I've seen this problem mentioned in a few threads but not seen any definitive fix.
My current install :
Stock NPD35K system, vendor, bootloader
Xceede's v8.01 kernel
TWRP 3.02 v6.0
Encrypted data partition
I currently get bootloops every time I boot into TWRP. After using TWRP and attempting to reboot it will then bootloop into recovery refusing to boot the system.
I have found it can be fixed by rebooting into fastboot and the "fastboot reboot" command. But this is frustrating if I don't have a laptop handy.
This happens every time I need to boot into recovery to install or update via TWRP. Is anyone else getting the same bootloops and has anyone found a permanent fix?
Thanks guys.
Sent from my Nexus 6P using Tapatalk

Hi Jake,
I had exactly the same issue since NPD35K except the fastboot reboot solution did not work for me.
What i could find was that if you flash the default vendor, recovery and cache partition via fastboot and then put off the tablet, it should after all of this boot correctly to the system.
Cheers,
Mathieu

You are not alone ..
I had the recovery bootloop once myself.
I did the "fastboot reboot" command and since then the Pixel C is booting fine again.
Did several installations afterwards .. no problems anymore.
Just once ..
But if you get it every reboot this a real problem.
Right now I am not able to help you .. just don't know the root cause and how to fix it.
As it looks like, it helps if you go back to stock recovery, like mentioned above.
I can not confirm this .. as I don't have the problem.
Good luck !

Thanks for the advice guys.
As I said it only bootloops immediately after boating into TWRP (even if I don't install anything), if I reboot from system it's fine.
At the moment I prefer to keep TWRP installed and reboot from fastboot if I need to use TWRP. I don't see an advantage to installing the stock recovery. It would be great to pinpoint what's causing this though.
Sent from my Pixel C using Tapatalk

I'm still getting this TWRP bootloop. I've tried several versions - 3.0.0, 3.0.21, 3.0.23. I've tried numerous times re-flashing stock using NRT and then flashing the recovery again. I've also tried fastboot-reboot.
I'm on stock 7.1.1 - NMF26H. If i need to install a different version for this to work I can do that.
Is there perhaps some particular version of TWRP that everyone but me is using? Or are there some specific versions of other files that I also need to flash along with TWRP? From what I've read if I get past this once that's probably it.
Thanks

badwiring said:
I'm still getting this TWRP bootloop. I've tried several versions - 3.0.0, 3.0.21, 3.0.23. I've tried numerous times re-flashing stock using NRT and then flashing the recovery again. I've also tried fastboot-reboot.
I'm on stock 7.1.1 - NMF26H. If i need to install a different version for this to work I can do that.
Is there perhaps some particular version of TWRP that everyone but me is using? Or are there some specific versions of other files that I also need to flash along with TWRP? From what I've read if I get past this once that's probably it.
Thanks
Click to expand...
Click to collapse
Pls install latest bootloader and latest factory image via fastboot, manually.
Pls use latest fastboot binaries from Google.
Pls install 3.0.2-23 via fastboot as well.
Reboot directly into TWRP and not into system in between.
Install SuperSu.zip v2.79 in TWRP.
Reboot into system.
The first time the system will boot twice .. it's normal.

followmsi said:
Pls install latest bootloader and latest factory image via fastboot, manually.
Pls use latest fastboot binaries from Google.
Pls install 3.0.2-23 via fastboot as well..
Click to expand...
Click to collapse
Thank you. I'll try this today. If I use s tool like NRT to flash "stock" to the device, does that cover what's described in the first step - latest bootloader and latest factory image - or is there something else I need to flash at that step?
Thanks

badwiring said:
Thank you. I'll try this today. If I use s tool like NRT to flash "stock" to the device, does that cover what's described in the first step - latest bootloader and latest factory image - or is there something else I need to flash at that step?
Thanks
Click to expand...
Click to collapse
Maybe your problem is related to the tool itself
For this reason I recommend to use the official google fastboot tool for complete flashing of factory image including bootloader.
To have a proper base to continue ..
Good luck !
EDIT: .. no need to wipe data here. Just a fresh system, vendor, cache and boot image from factory image.

followmsi said:
Maybe your problem is related to the tool itself
For this reason I recommend to use the official google fastboot tool for complete flashing of factory image including bootloader.
To have a proper base to continue ..
Good luck !
Click to expand...
Click to collapse
I think that answers my question - the original factory image including the bootloader.
I'll try it in a few hours. Thank you very much!

That worked! I was currently on stock 7.1.1 so I tried it first without re-flashing, although I was prepared to go back to that step if it didn't work.
First I downloaded SuperSU 2.79 and copied the ZIP to my device.
I used Minimal ADB and Fastboot (which I think is taken from the official Google source) and flashed recovery-twrp-3.0.2.23.followmsi-ryu.img.
Then I rebooted into recovery - not system - and flashed SuperSU.
Finally I rebooted into system.
The Google logo appeared for a moment and then it booted again (exactly as you said.) Then it booted normally.
Finally! Thank you very much! Hopefully this will help someone else too. It can be the smallest detail we miss that makes the difference.

badwiring said:
That worked! I was currently on stock 7.1.1 so I tried it first without re-flashing, although I was prepared to go back to that step if it didn't work.
First I downloaded SuperSU 2.79 and copied the ZIP to my device.
I used Minimal ADB and Fastboot (which I think is taken from the official Google source) and flashed recovery-twrp-3.0.2.23.followmsi-ryu.img.
Then I rebooted into recovery - not system - and flashed SuperSU.
Finally I rebooted into system.
The Google logo appeared for a moment and then it booted again (exactly as you said.) Then it booted normally.
Finally! Thank you very much! Hopefully this will help someone else too. It can be the smallest detail we miss that makes the difference.
Click to expand...
Click to collapse
You are welcome ..

``

tried numerous times to flash TWRP to my Pixel C 8.0.0 (OPR1.170623.032, Nov 2017) every time with bootloop in to recovery...
most recently hoping twrp-3.2.0-0-dragon would work
---------- Post added at 07:44 PM ---------- Previous post was at 07:29 PM ----------
tried to reflash ryu-opr1.170623.032-factory-020f1cf9's boot.img and it still bootlooped.
Tried to flash the recovery and now its bootlooping into stock recovery. Any ideas?
for a stock google device, this things a nightmare to work with compared to my nexus devices

I installed 7.1.1 by mistake. What now? Help

I bought my 5X in October and came here to root my phone and be able to use the ElementalX and the Advanced Interactive Governor tweaks.
Everything was working fine and my phone really performed outstandingly.
Then I saw the OTA 7.1.1. popping up. I didn't allow it until I installed it by mistake yesterday...
Now I'm stuck with google asking me to lock the bootloader.
I can access the bootloader. I get a lot of options.
I can access the recovery mode and it gets me to RecoveryProject 3.0.2-2 by Teamwin.
I already have the Android platform tools on my desktop and it's working.
From there I have 2 questions :
1. Is there a way to not wipe all the contents on my phone? I didn't get the chance to backup all the data on it.
2. After that how can I get my phone working with the latest android version as I was before, unrooted and running with EX Kernel Manager.
Thanks for your help.

1. try installing the supersu zip from the recovery
2.EX Kernel Manager cannot work without root. so you need to root your device

Thanks a lot for you answer!
1. So by installing SuperSu zip from the recovery I would be able to backup my phone data?
2. I meant rooted sorry. So my phone is already rooted and I'm fine with staying that way.

Enzoli said:
Thanks a lot for you answer!
1. So by installing SuperSu zip from the recovery I would be able to backup my phone data?
Click to expand...
Click to collapse
yes
you can actually backup you device from TWRP recovery.
flash the supersu zip and you will boot normally without any data lose

Insane! thanks a lot.
One more noob question. I got the latest superSu zip.
How can I flash it from the recovery?
How can i transfer it to the phone?

Ok I almost got it.
My only question left is how can I transfer the SuperSu zip file onto my phone since I don't have access to anything else than Bootloader and TWRP

Enzoli said:
Ok I almost got it.
My only question left is how can I transfer the SuperSu zip file onto my phone since I don't have access to anything else than Bootloader and TWRP
Click to expand...
Click to collapse
adb sideload from twrp

OK guys thanks. When I use adb sideload in twrp advanced menu it gets stuck on "Starting ADB sideload feature... "
And when I type ADB devices on the command prompt it does not show my device but if I'm just in the menu before sideload it does find my device and says the serial number + recovery.
What am I doing wrong?
Thanks for helping.

You should be able to transfer files while being in recovery using MTP mode.

How do I use MTP mode? Sorry what does that mean. Can't find an explanation on the internet.
I've looked at all the options in the menu but can't find such a option.
I really feel stupid.

Ok guys I transfered SuperSu to my phone using adb push.
I flashed my phone with SuperSu but when i reboot my phone, it still tells me I need to lock my bootloader.
What shall I do now?

I keep going to the Googl screen with the little locker and then I reach the No Command screen.
The phone won't boot into Android no more. Guys please help I'm desperate. Is my phone dead?

Ok so I guess my phone is now in bootloop.
Still anyone willing to help?

OK I tried many things in despair and now I cannot enter the recovery mode anymore. It just gets stuck on the teamwin screen.
Guess it's time to buy a new phone.

So miracle I could enter the recovery.
Now I don't know where to go. I would like to be able to enter normal android but my phone will keep on showing android screen with little lock and the end on the No command screen. Endlessly.

Ok. THread can be closed. I managed to flash a factory image. Lost all my data but I got a working phone so I guess it's not to bad.

...

Enzoli said:
Ok. THread can be closed. I managed to flash a factory image. Lost all my data but I got a working phone so I guess it's not to bad.
Click to expand...
Click to collapse
If you ever need help on updating your software to the latest Android version, follow my guide as a reference:
https://forum.xda-developers.com/showthread.php?t=3206930
Sent from my Nexus 5X using Tapatalk

Help please!! OTA with Magisk problem

Hi folks, I've a problem with my Pixel 2 XL. I've installed Magisk 16 (1600) on it and I'm trying to update it (April update) throw official OTA following this guide:
https://github.com/topjohnwu/Magisk/blob/master/docs/tips.md
Click to expand...
Click to collapse
Unfortunately I'm at "Security update installing..." "Step 1 of 2" since half an hour without moving to Step 2 of 2.
Can you help me please?
:crying:
screenshot attached

I would strongly recommend downloading the full factory image. Extracting the zip and removing the -w in the fastboot -w update in the flash all script. It's way easier!
More details here -
https://forum.xda-developers.com/showpost.php?p=74772300&postcount=296

last_nooby said:
Hi folks, I've a problem with my Pixel 2 XL. I've installed Magisk 16 (1600) on it and I'm trying to update it (April update) throw official OTA following this guide:
Unfortunately I'm at "Security update installing..." "Step 1 of 2" since half an hour without moving to Step 2 of 2.
Can you help me please?
:crying:
screenshot attached
Click to expand...
Click to collapse
That has never worked for me at anytime.
Sideloading the OTA through TWRP works without issue.
My steps
Boot into twrp
Go to advanced
Adb sideload
Swipe to activate adb sideload
From PC run command adb sideload “file path/filename.zip
Reboot, you lost root and recovery, allow OTA to complete install, takes a while
Power down.
Boot to bootloader
Fastboot boot twrp
Flash twrp
Flash MAGISK ZIP

parakleet said:
That has never worked for me at anytime.
Sideloading the OTA through TWRP works without issue.
My steps
Boot into twrp
Go to advanced
Adb sideload
Swipe to activate adb sideload
From PC run command adb sideload “file path/filename.zip
Reboot, you lost root and recovery, allow OTA to complete install, takes a while
Power down.
Boot to bootloader
Fastboot boot twrp
Flash twrp
Flash MAGISK ZIP
Click to expand...
Click to collapse
random question (my apologies OP, I'm not trying to hijack...)...
what version of TWRP are you / have you been using to do this?
...I had attempted this a while back and wasn't able to get it working correctly...I had to resort to THIS...

simplepinoi177 said:
random question (my apologies OP, I'm not trying to hijack...)...
what version of TWRP are you / have you been using to do this?
...I had attempted this a while back and wasn't able to get it working correctly...I had to resort to THIS...
Click to expand...
Click to collapse
The 3.2.1-2 version. Found here.
https://dl.twrp.me/taimen/

Installed twrp, but can't get into it

I did the following
1. Downgraded to V30b-EUR-XXX with LGUP. Went smooth.
2. Rooted phone sucessfully with kingroot.
3. Got a shell with "adb shell"
4. "su"
5. Filled the recovery-partition with zeros from /dev/zero with dd
6. Installed twrp3.2.3-0 with dd on recovery-partition
When I boot into Marshmallow, all is fine. When I boot into recovery, I'm informed about a necessary factory reset. I say "Yes" both times, then the LG Logo and some tiny text is displayed and afterwards the screen goes dark. The LED is blinking blue and red; the only way out of this is to remove the battery.
If I do a factory reset from within marshmallow, the result is the same.
What can I do now? Should I flash a stock recovery with dd? But where to get it? Or should I flash an older version of twrp?

Hello,
Last time when I downgraded, I also rooted with KingRoot, but I installed the "Flashify" full version, ( on the ROM of course ) and I flashed the twrp with the flashify as "recovery". This is working.

NetDog75 said:
Hello,
Last time when I downgraded, I also rooted with KingRoot, but I installed the "Flashify" full version, ( on the ROM of course ) and I flashed the twrp with the flashify as "recovery". This is working.
Click to expand...
Click to collapse
Excuse me, but I'm not able to decipher that. What is flashify? What means "on the ROM of course"? Can you give more information please.

- flashify is an application.
- on the ROM = when the phone booted and the operation system is working, you can use your phone... example for phone calls. As you wrote: "boot into Marshmallow"
So, downgrade again, and boot into Marshmallow, use the kingroot, than install the flashify application. You can flash the twrp with the mentioned Flashify application, than reboot to recovery.

NetDog75 said:
- flashify is an application.
- on the ROM = when the phone booted and the operation system is working, you can use your phone... example for phone calls. As you wrote: "boot into Marshmallow"
So, downgrade again, and boot into Marshmallow, use the kingroot, than install the flashify application. You can flash the twrp with the mentioned Flashify application, than reboot to recovery.
Click to expand...
Click to collapse
Don't had to downgrade, because I was in V30b. Got root, installed flashify and flashed twrp - the first time 3.2.3, then 2.8.0. Same result as before.
From what version of android did you install what version of twrp?

Hi,
I use the twrp3.2.3 and no problem.
I'm not expert, I just can recommend some steps...
Maybe good idea to flash again the stock ROM. You can find here on the forum many step by step guide for this. ( tools and steps )
It seems your phone recovery partition is not OK....
I have no more idea...

@theuving, why did you decide to zero out the recovery partition? I don't know but that may be part of the problem. Since you were connected via adb was it not possible to use fastboot? Flashing the recovery via that should(?) have also worked.
If the recovery partition is messed up you might have to start over. Not sure though as I haven't experienced that problem.
ZTE Axon 7 A2017U, /e/ v0.1 ROM, microG (NoGapps), Multiboot, XDA Legacy

marcdw said:
@theuving, why did you decide to zero out the recovery partition? I don't know but that may be part of the problem. S
Click to expand...
Click to collapse
It's the same partition where I flashed twrp, so the zeros are already overwritten with something else ...
Seriously: Zeroing the partition before writing to it was mentioned in a thread about the installation of a "bumped" recovery.

NetDog75 said:
Hi,
I use the twrp3.2.3 and no problem.
Click to expand...
Click to collapse
OK, that is the version I used also. What android version was installed when you flashed the recovery? Mine is stock V30b.

Hi,
I'm not sure, because I changed to 8.1 (oreo).
Maybe V30N.....

I am having the same problem. There is no "unlock bootloader" in the developer options, and adb reboot bootloader just starts into android again. I might have to reflash the stock firmware, but nowhere in the install instructions for twrp does it say that you first have to unlock the bootloader, and nowhere does it even mention that there might not be such an option. This is genuinely strange.