Develop Bugs

After flashing TWRP, will not boot system

Good morning,
I'm sure it's something I'm missing. I had my tablet unlocked and running fine with TWRP. I went to Omni then to Preview 2. All was well.
Last night I decided to try SuperSU 2.72. I factory reset my Pixel C by installing the latest firmware. I then used fastboot to flash TWRP. It goes into TWRP fine but now it will not boot system any longer. It goes directly into TWRP when I have it boot system. Is this an encryption problem. I've tried both TWRP versions and same behavior.
Any idea what I'm doing wrong?
Thanks!

if you have 3.0.2 i think there was a problem with early build causing this. there was a link posted for the new one that supposedly fixed it. or just use the 3.0.0 build.

Mike02z said:
Good morning,
I'm sure it's something I'm missing. I had my tablet unlocked and running fine with TWRP. I went to Omni then to Preview 2. All was well.
Last night I decided to try SuperSU 2.72. I factory reset my Pixel C by installing the latest firmware. I then used fastboot to flash TWRP. It goes into TWRP fine but now it will not boot system any longer. It goes directly into TWRP when I have it boot system. Is this an encryption problem. I've tried both TWRP versions and same behavior.
Any idea what I'm doing wrong?
Thanks!
Click to expand...
Click to collapse
It seems some people have problems installing the NYCHitman1 TWRP version.
Most of them complaining because of boot problems.
To fix it:
Pls use xceed TWRP 3.0.0-0 version: http://forum.xda-developers.com/pix...official-twrp-2-8-7-0-pixel-c-dragon-t3288243
Or use my repacked TWRP 3.0.2-0 version : TWRP_dragon_3.0.2.0.img
Pls install TWRP via fastboot and boot directly into TWRP.
Install stock kernel (boot.img) via "fastboot" or use the TWRP flashable version from here: Update.ZIP_Nexus_Ryu_MXC89F-kernel_dragon.zip
Install SuperSU.zip 2.72 directly afterwards in TWRP - no reboot in between.
Download: http://forum.xda-developers.com/pixel-c/development/twrp-flashable-monthly-update-zip-pixel-t3375591
Good luck !

followmsi said:
It seems some people have problems installing the NYCHitman1 TWRP version.
Most of them complaining because of boot problems.
To fix it:
Pls use xceed TWRP 3.0.0-0 version: http://forum.xda-developers.com/pix...official-twrp-2-8-7-0-pixel-c-dragon-t3288243
Or use my repacked TWRP 3.0.2-0 version : TWRP_dragon_3.0.2.0.img
Pls install TWRP via fastboot and boot directly into TWRP.
Install stock kernel (boot.img) via "fastboot" or use the TWRP flashable version from here: Update.ZIP_Nexus_Ryu_MXC89F-kernel_dragon.zip
Install SuperSU.zip 2.72 directly afterwards in TWRP - no reboot in between.
Download: http://forum.xda-developers.com/pixel-c/development/twrp-flashable-monthly-update-zip-pixel-t3375591
Good luck !
Click to expand...
Click to collapse
Thanks guys! I did go back to 3.0.0-0 and it now boots into system. I'll also try your repackaged version of 3.0.2-0. I'm on my work PC but I don't see a link to your version. Is my work PC just hiding it or can I find it somewhere else? Thanks again!

Mike02z said:
Thanks guys! I did go back to 3.0.0-0 and it now boots into system. I'll also try your repackaged version of 3.0.2-0. I'm on my work PC but I don't see a link to your version. Is my work PC just hiding it or can I find it somewhere else? Thanks again!
Click to expand...
Click to collapse
Here is the direct link for TWRP_dragon_3.0.2.0.img:
https://onedrive.live.com/?authkey=...&id=479EB75F5DD9DA59!131&cid=479EB75F5DD9DA59
Here is the complete folder: (TWRP flashable stock kernel)
https://onedrive.live.com/?authkey=!ABLdSOKIeXgg_XU&id=479EB75F5DD9DA59!117&cid=479EB75F5DD9DA59
Cheers

Well in case of "recovery bootloop" start your device in bootloader mode and type "fastboot reboot" in command shell. That works mostly. No need to flash another recovery.

redukt said:
Well in case of "recovery bootloop" start your device in bootloader mode and type "fastboot reboot" in command shell. That works mostly. No need to flash another recovery.
Click to expand...
Click to collapse
And connect everytime with PC to do a manual reboot via fastboot .. seems a little bit too much for a simple reboot. At least for me
A proper TWRP with proper vboot will boot always correctly, like the one from xceed.
Did you ever had to do a manual reboot on his version ?
Should be fixed at the root cause .. Hope you agree ?
Cheers

I think there´s a little missunderstanding
The fastboot command helps you to get out of "recovery bootloop". After this you can reboot your device how offen you want without issues.
And yes with all existing TWRP versions I had some reboot hickups and have solved it with the fastboot method...

redukt said:
I think there´s a little missunderstanding
The fastboot command helps you to get out of "recovery bootloop". After this you can reboot your device how offen you want without issues.
And yes with all existing TWRP versions I had some reboot hickups and have solved it with the fastboot method...
Click to expand...
Click to collapse
Interesting .. I did not have any reboot issues with xceed TWRP versions .. I had to use the fix fastboot option once, but this is another topic.
But thanks for your information ...

followmsi said:
It seems some people have problems installing the NYCHitman1 TWRP version.
Most of them complaining because of boot problems.
To fix it:
Pls use xceed TWRP 3.0.0-0 version: http://forum.xda-developers.com/pix...official-twrp-2-8-7-0-pixel-c-dragon-t3288243
Or use my repacked TWRP 3.0.2-0 version : TWRP_dragon_3.0.2.0.img
Pls install TWRP via fastboot and boot directly into TWRP.
Install stock kernel (boot.img) via "fastboot" or use the TWRP flashable version from here: Update.ZIP_Nexus_Ryu_MXC89F-kernel_dragon.zip
Install SuperSU.zip 2.72 directly afterwards in TWRP - no reboot in between.
Download: http://forum.xda-developers.com/pixel-c/development/twrp-flashable-monthly-update-zip-pixel-t3375591
Good luck !
Click to expand...
Click to collapse
Hi.. after installing TWRP my phone nokia 3 TA-1020 I only booted to system once, when I restarted it later it does not boot the system but boots to TWRP. what can I do so that it will be rebooting to system instead of TWRP your help will be highly appreciated, thanks in advance.

Annan Denis said:
Hi.. after installing TWRP my phone nokia 3 TA-1020 I only booted to system once, when I restarted it later it does not boot the system but boots to TWRP. what can I do so that it will be rebooting to system instead of TWRP your help will be highly appreciated, thanks in advance.
Click to expand...
Click to collapse
Wrong device thread .. anyway just restore "stock" ROM/recovery to make it working again.
Good luck !

No twrp after flashing 3.2.5

I m running on 3.2.6 rooted and with twrp last night i try to flash 3.2.5 community build got an error 7 than i flash any other rom fingreprint scanner stops working after that i read some threads and than i flash 3.2.4 fingreprint works again but when i m trying to flash twrp it booted up with official twrp but after restart it again replace twrp with stock recovery what should i do to get twrp again??
I tried to flash modified twrp but only a blink of black screen and restart.
I tried to flash official twrp from bootloader i select reboot recovery it boots into twrp but it says unable to mount system and after restart it replaced again with stock oss recovery.
I am running on 3.2.4 right now but stuck it on 3.2.4 not able to falsh ota after downloading the ota of 40 mb it gives me some error so please someone helps here how do i get twrp becoz i need root.

rakesh595160 said:
I m running on 3.2.6 rooted and with twrp last night i try to flash 3.2.5 community build got an error 7 than i flash any other rom fingreprint scanner stops working after that i read some threads and than i flash 3.2.4 fingreprint works again but when i m trying to flash twrp it booted up with official twrp but after restart it again replace twrp with stock recovery what should i do to get twrp again??
I tried to flash modified twrp but only a blink of black screen and restart.
I tried to flash official twrp from bootloader i select reboot recovery it boots into twrp but it says unable to mount system and after restart it replaced again with stock oss recovery.
I am running on 3.2.4 right now but stuck it on 3.2.4 not able to falsh ota after downloading the ota of 40 mb it gives me some error so please someone helps here how do i get twrp becoz i need root.
Click to expand...
Click to collapse
Flash full 3.2.6 zip instead
Followed by flashing official twrp
Stop messing up with 3.5.2 (please revise your thread title, 3.2.5 is not 3.5.2)

Or can download flashify and download latest trwp and flash, unless u keep the community build then there is a diff trwp version floating around here

otonieru said:
Flash full 3.2.6 zip instead
Followed by flashing official twrp
Stop messing up with 3.5.2 (please revise your thread title, 3.2.5 is not 3.5.2)
Click to expand...
Click to collapse
How i flash full 3.2.6?? No twrp here

Bradl79 said:
Or can download flashify and download latest trwp and flash, unless u keep the community build then there is a diff trwp version floating around here
Click to expand...
Click to collapse
Flashify only works with root and for root i need twrp so here thats not possible.

rakesh595160 said:
How i flash full 3.2.6?? No twrp here
Click to expand...
Click to collapse
You can boot into twrp without flashing it.

while on OOS 3.2.6 flash the *modified* TWRP and then flash that community build 3.5.2 not 3.2.5. as community build needs that modified twrp to work.. if you wanna revert to other roms.. flash stock OOS 3.2.6 and then flash twrp official and your all good to go..
if you want easy way to get twrp on your phone use that " Tool all in one" it can be found in xda.
Hope that works for you as it worked for me! Cheers!

rakesh595160 said:
I m running on 3.2.6 rooted and with twrp last night i try to flash 3.2.5 community build got an error 7 than i flash any other rom fingreprint scanner stops working after that i read some threads and than i flash 3.2.4 fingreprint works again but when i m trying to flash twrp it booted up with official twrp but after restart it again replace twrp with stock recovery what should i do to get twrp again??
I tried to flash modified twrp but only a blink of black screen and restart.
I tried to flash official twrp from bootloader i select reboot recovery it boots into twrp but it says unable to mount system and after restart it replaced again with stock oss recovery.
I am running on 3.2.4 right now but stuck it on 3.2.4 not able to falsh ota after downloading the ota of 40 mb it gives me some error so please someone helps here how do i get twrp becoz i need root.
Click to expand...
Click to collapse
I'm in this same boat. I am curious if you found an answer. After splash screen my phone will only boot into a black screen. No recovery mode. I've tried reflashing official twrp from fastboot and it says it was successful but phone still wont enter recovery.

kennonk said:
I'm in this same boat. I am curious if you found an answer. After splash screen my phone will only boot into a black screen. No recovery mode. I've tried reflashing official twrp from fastboot and it says it was successful but phone still wont enter recovery.
Click to expand...
Click to collapse
which rom are you on now?

galaxy16 said:
which rom are you on now?
Click to expand...
Click to collapse
I was trying out freedom 1.7, but had recently wiped system to prepare to reinstall another rom when phone stopped booting to recovery. Now I dont have a bootable rom or recovery.
---------- Post added at 05:25 PM ---------- Previous post was at 05:21 PM ----------
kennonk said:
I was trying out freedom 1.7, but had recently wiped system to prepare to reinstall another rom when phone stopped booting to recovery. Now I dont have a bootable rom or recovery.
Click to expand...
Click to collapse
When I flash official twrp in fastboot I get:
target reported max download size of 442499072 bytes
sending 'recovery' (18964 KB)...
OKAY [ 0.506s]
writing 'recovery'...
OKAY [ 0.147s]
finished. total time: 0.653s
But it still won't go into recovery. I guess I am going to have to find a windows PC and use the unbrick tool unless anyone has a suggestion.

kennonk said:
I was trying out freedom 1.7, but had recently wiped system to prepare to reinstall another rom when phone stopped booting to recovery. Now I dont have a bootable rom or recovery.
---------- Post added at 05:25 PM ---------- Previous post was at 05:21 PM ----------
When I flash official twrp in fastboot I get:
target reported max download size of 442499072 bytes
sending 'recovery' (18964 KB)...
OKAY [ 0.506s]
writing 'recovery'...
OKAY [ 0.147s]
finished. total time: 0.653s
But it still won't go into recovery. I guess I am going to have to find a windows PC and use the unbrick tool unless anyone has a suggestion.
Click to expand...
Click to collapse
Dont flash official twrp, flash the modified twrp.. Flash to OOS 326 or 324.. Then flash official twrp and your good to go..

galaxy16 said:
Dont flash official twrp, flash the modified twrp.. Flash to OOS 326 or 324.. Then flash official twrp and your good to go..
Click to expand...
Click to collapse
That got me back to working recovery...thank you very much
So if I want to go back to official at some point is there a way?

kennonk said:
That got me back to working recovery...thank you very much
So if I want to go back to official at some point is there a way?
Click to expand...
Click to collapse
happy to help! yes you can get back to official twrp after flashing oos 3.2.4 or 3.2.6.. because for the community build 3.5.2 only that modded twrp will work..

rakesh595160 said:
How i flash full 3.2.6?? No twrp here
Click to expand...
Click to collapse
fastboot boot recovery yourtwrpnamehere.img
then flash your 3.2.6 then
fastboot flash recovery yourtwrpnamehere.img

otonieru said:
fastboot boot recovery yourtwrpnamehere.img
then flash your 3.2.6 then
fastboot flash recovery yourtwrpnamehere.img
Click to expand...
Click to collapse
Can somebuddy give me the link to the modified recovery the one i download is only showing black screen nothing comes after that so need the perfect one.

rakesh595160 said:
Can somebuddy give me the link to the modified recovery the one i download is only showing black screen nothing comes after that so need the perfect one.
Click to expand...
Click to collapse
Check on the blu_sp*rk kernel thread.

I have this same problem...
I flashed the community build (3.5) and can now no longer boot into TWRP. I attempted to flash it this way...
Placed recovery in tools folder (with fastboot and adb etc.) and opened a command window. I typed fastboot flash recovery recovery.img and it flashes fine, but when I boot I get the splash screen and then nothing. What am i doing wrong? I have tried both official and modded TWRP.

Same thing happens with me no modded one works for me too.
In 3.2.6 when we try to flash any other rom it will break the fingreprint scanner dont know why both the update these problems hope the will fix them soon.

couldn't boot to twrp recovery after flashing cm14

hi'
i have flashed cm14 nightly with aroma (gapps) on cm13 on my oneplus 3
now i couldn't go neither to recovery mode nor to current cm 14 rom to change my rom
i am out of ideas i tried in every possible way to my knowledge pleasee help me ........................

Flash the modified twrp 3.0.2-22 via fastboot.

Get modified twrp here i asume that you know how to flash it?
Boot in fastboot > fastboot flash recovery Recovery filename.img

I had the same problem. Flashing modified twrp worked for me, thanks! But now if I to flash stock recovery (to install otas), I can't boot to recovery. E: oxygenos otas can be installed with twrp, so no problem anymore

plz send me the link of modified twrp
i coudnt find it on google properly plz

Try the link given by Demian3112. It works

THQ thq soon much.. Its working
Demian3112 said:
Get modified twrp here i asume that you know how to flash it?
Boot in fastboot > fastboot flash recovery Recovery filename.img
Click to expand...
Click to collapse
Yes its working
Thank q very much

THQ thq soon much.. Its working
AJay27 said:
Try the link given by Demian3112. It works
Click to expand...
Click to collapse
THQ for ur valuable suggestion
My killer is back

Demian3112 said:
Get modified twrp here i asume that you know how to flash it?
Boot in fastboot > fastboot flash recovery Recovery filename.img
Click to expand...
Click to collapse
Hii,
Still the problem remains same I will explain in detail
I am back to cm14.1 when I flashed twrp from the above link
When I tried to flash some other ROMs they are flashed but screen goes blank after oneplus boot animation,
If I flash 14.1 ROM it is working fine
From cmd non of the recovery where flashed only the above is working
Plz help me
I want to go back to stock soon

It's because of the system partition rewriting issue. People in the cm and other communities are already working on it. Basically the boot partitions get rewritten when we install the cm 14.1 . It happens to some variants while others works fine. Just the issue because of not enough testing. Will be sorted out within time.
What you can do is. Use flashify app or fastboot from your pc and flash your twrp back after installing and booting into the cm 14.1. You can use any twrp no modified versions needed as far as it is supported by your device model. Ciao. Hit thanks if i helped.

sanjumalik720 said:
It's because of the system partition rewriting issue. People in the cm and other communities are already working on it. Basically the boot partitions get rewritten when we install the cm 14.1 . It happens to some variants while others works fine. Just the issue because of not enough testing. Will be sorted out within time.
What you can do is. Use flashify app or fastboot from your pc and flash your twrp back after installing and booting into the cm 14.1. You can use any twrp no modified versions needed as far as it is supported by your device model. Ciao. Hit thanks if i helped.
Click to expand...
Click to collapse
ohhh
then what is the solution ?????

Thank you very much
Demian3112 said:
Get modified twrp here i assume that you know how to flash it?
Boot in fastboot > fastboot flash recovery Recovery filename.img
Click to expand...
Click to collapse
I had the same problem as OP, got stuck with the CM 14 and did not like it (to early, to many bugs)
Wanted to go back to CM 13 but was unable to get into TWRP, and unable to flash CM13 back. Tried with fastboot and adb sideload, nothing worked.
The modified TWRP let me do i full wipe of the phone, (wiped Data, Dalik/ART, and system.) then copied the CM13 Stable release from here onto the phone, together with Gapps, and now everything is back to normal.
Again thank you, and thanks XDA! Somehow you always manage to save my ass after i messed with my device

Balaji Dasari said:
ohhh
then what is the solution ?????
Click to expand...
Click to collapse
Just flash the twrp image file again. The one you used before. Just flash it again. The same way you did back then.

Unable to boot into TWRP recovery (twrp-3.2.3-1 dumpling/OOS 9.0.3 Pie)

Hey Guys,
somehow, I seem to be too dumb to install TWRP to my new dumpling. I did the following:
- run the official updates (9.0.3 Pie)
- unlock the bootloader using adb
- successfully flash the latest TWRP recovery (twrp-3.2.3-1 dumpling from their HP)
So far, no problems at all. Then I booted directly into recovery, so it won't be overwritten again: I tried unplug + Power/Volume Down, command "fastboot reboot recovery" and selecting recovery from the menu. But everytime I end up with the beautiful stock recovery, I never even saw the TWRP interface.
Any suggestions ? Any help would be much appreciated!!
My only idea: The latest TWRP is from 08/2018, maybe its not compatible to Pie ?!

_Kingo said:
Hey Guys,
somehow, I seem to be too dumb to install TWRP to my new dumpling. I did the following:
- run the official updates (9.0.3 Pie)
- unlock the bootloader using adb
- successfully flash the latest TWRP recovery (twrp-3.2.3-1 dumpling from their HP)
So far, no problems at all. Then I booted directly into recovery, so it won't be overwritten again: I tried unplug + Power/Volume Down, command "fastboot reboot recovery" and selecting recovery from the menu. But everytime I end up with the beautiful stock recovery, I never even saw the TWRP interface.
Any suggestions ? Any help would be much appreciated!!
My only idea: The latest TWRP is from 08/2018, maybe its not compatible to Pie ?!
Click to expand...
Click to collapse
hi dude, to stay on TWRP you have to flash MAGISK, if not TWRP will always be overwritten by the StockRecovery!!
flash TWRP
reboot into TWRP
flash Magisk within TWRP
reboot system
happy flashing!

nicorvienne said:
hi dude, to stay on TWRP you have to flash MAGISK, if not TWRP will always be overwritten by the StockRecovery!!
flash TWRP
reboot into TWRP
flash Magisk within TWRP
reboot system
happy flashing!
Click to expand...
Click to collapse
Hi, thanks, but I think you did not understand my problem: I can't reboot into TWRP. Instead I end up in stock, no matter what I do...

_Kingo said:
Hi, thanks, but I think you did not understand my problem: I can't reboot into TWRP. Instead I end up in stock, no matter what I do...
Click to expand...
Click to collapse
hi dude, sorry - now i got you
# after flashed TWRP unplug your device and reboot directly into the bootloader-mode (‘Volume Up’ + ‘Power’ button altogether) and navigate to 'Recovery' or
# fastboot boot 'recovery.img'
i recommend flashing twrp-3.2.3-x_blu_spark_v9.91_treble-op5_op5t.img : https://github.com/engstk/android_device_oneplus_cheeseburger/releases

SOLVED
I tried the 9.x recovery from this thread:
https://forum.xda-developers.com/oneplus-5t/development/recovery-twrp-3-2-1-0-oreo-8-0-8-1-t3729673
works like a charm!
I thougth, the official TWRP site would be the best source, but well... lesson learnt. Anyway, thanks for trying to help, nicorvienne

_Kingo said:
Hey Guys,
somehow, I seem to be too dumb to install TWRP to my new dumpling. I did the following:
- run the official updates (9.0.3 Pie)
- unlock the bootloader using adb
- successfully flash the latest TWRP recovery (twrp-3.2.3-1 dumpling from their HP)
So far, no problems at all. Then I booted directly into recovery, so it won't be overwritten again: I tried unplug + Power/Volume Down, command "fastboot reboot recovery" and selecting recovery from the menu. But everytime I end up with the beautiful stock recovery, I never even saw the TWRP interface.
Any suggestions ? Any help would be much appreciated!!
My only idea: The latest TWRP is from 08/2018, maybe its not compatible to Pie ?!
Click to expand...
Click to collapse
try this.
https://forum.xda-developers.com/oneplus-5t/development/root-install-twrp-xposed-framework-t3910141

Newbie needs help twrp
I am having the same problem and I have tried everything I unlock bootloader and flash TWRP successfully except I can never get into TWRP I try the key combo I tried to use the fastboot command all it does is it brings me back to fastboot mode how can I get to twrp with my new OnePlus 5T

[email protected] said:
I am having the same problem and I have tried everything I unlock bootloader and flash TWRP successfully except I can never get into TWRP I try the key combo I tried to use the fastboot command all it does is it brings me back to fastboot mode how can I get to twrp with my new OnePlus 5T
Click to expand...
Click to collapse
try to flash an older version of twrp through "ADB minimal fast boot".

I use Twrp and am not using Magisk or rooted.

Pixel 3a XL soft #BRICK - please help

On my way to installing LineageOS I tried to downgrade Android version 11 -> 10. Unfortunately I used the WRONG INCOMPATIBLE firmware files from google's website (I think for 3 XL), that's why I have a brick now. ''Device is corrupt and no bootup possible.''
Access to Fastboot and STOCK Recovery Mode is possible.
Bootloader is Locked Now (it *was* unlocked before for flashing the firmware)
ADB is not working (since I'm getting stuck on ''google'' symbol when booting up I can't go to Developer Settings)
Factory Preset from Recovery Mode fails: ''can't send spi messages.'' Same Brick occurs.
With No Access to ADB (is it possible to set up from fastboot mode without enabling it in den Developer Options?) I can't try stuff.
And with the bootloader locked no way to flash a new Rom right?
I have NO IDEA what to do next, any IDEAS??
Thank you!!
#brick

Since you can get to recovery you should download the latest ota and sideload it from recovery.

https://developers.google.com/android/images
you should flash the stock image from recovery. Basically unzip it all and just run "flash-all.bat"

41rw4lk said:
Since you can get to recovery you should download the latest ota and sideload it from recovery.
Click to expand...
Click to collapse
Thank you, this worked perfectly fine, since you don't need an unlocked bootloader to flash this system image.
However, I am facing a new problem on my way to installing TWRP Recovery Image...!!
CMD gives me THIS log:
Writing 'recovery' FAILED (remote: 'Not allowed to flash (recovery)')
fastboot: error: Command failed
- the device is unlocked (I even relocked it and unlocked it again, didn't work)
- I tried one other older .img for my phone from official twrp.me website, didn't work
Any Ideas?

dadu1257 said:
Thank you, this worked perfectly fine, since you don't need an unlocked bootloader to flash this system image.
However, I am facing a new problem on my way to installing TWRP Recovery Image...!!
CMD gives me THIS log:
Writing 'recovery' FAILED (remote: 'Not allowed to flash (recovery)')
fastboot: error: Command failed
- the device is unlocked (I even relocked it and unlocked it again, didn't work)
- I tried one other older .img for my phone from official twrp.me website, didn't work
Any Ideas?
Click to expand...
Click to collapse
You need the BL unlocked to flash unsigned/unofficial images, so make sure yours is unlocked. That being said, I'm not sure how solid twrp is for our device, I've never tried it. Twrp was/is a little iffy for android 10 never mind 11. Most around here just use fastboot to do what needs to be done. Most of it is pretty quick and painless, and twrp is not really necessary.

dadu1257 said:
Thank you, this worked perfectly fine, since you don't need an unlocked bootloader to flash this system image.
However, I am facing a new problem on my way to installing TWRP Recovery Image...!!
CMD gives me THIS log:
Writing 'recovery' FAILED (remote: 'Not allowed to flash (recovery)')
fastboot: error: Command failed
- the device is unlocked (I even relocked it and unlocked it again, didn't work)
- I tried one other older .img for my phone from official twrp.me website, didn't work
Any Ideas?
Click to expand...
Click to collapse
I'm pretty sure you would have to downgrade to android 9 (pie) and install a custom kernel to get twrp to install. Unless you want to rock android pie - like I currently am (Bootlegger's 9 - I like my smartbar customizations) - it's best to give up on TWRP and just use fastboot commands for android 10 and up.
If you do decide to downgrade to pie the elementalX kernel (ElementalX-P3a-1.06) works fine with twrp and is available on their site. Temp boot twrp via fastboot, flash kernel, flash twrp zip file, reboot to recovery and flash magisk zip for root (if you want root). But it may be hard to find older pie ROMs out in the wild to flash since devs have dropped support and will be focused on android 10/11.

teemothay said:
I'm pretty sure you would have to downgrade to android 9 (pie) and install a custom kernel to get twrp to install. Unless you want to rock android pie - like I currently am (Bootlegger's 9 - I like my smartbar customizations) - it's best to give up on TWRP and just use fastboot commands for android 10 and up.
If you do decide to downgrade to pie the elementalX kernel (ElementalX-P3a-1.06) works fine with twrp and is available on their site. Temp boot twrp via fastboot, flash kernel, flash twrp zip file, reboot to recovery and flash magisk zip for root (if you want root). But it may be hard to find older pie ROMs out in the wild to flash since devs have dropped support and will be focused on android 10/11.
Click to expand...
Click to collapse
Unlike most of the LineageOS Tutorials out there is used the Custom Recovery from Lineage to install LIneageOS! It was super easy, a few ADB commands and here it is. No Root, no TWRP whatsoever.
Follow wiki lineageos devices website instructions. Here you may also find the recovery data.
Thx guys/girls!

dadu1257 said:
Unlike most of the LineageOS Tutorials out there is used the Custom Recovery from Lineage to install LIneageOS! It was super easy, a few ADB commands and here it is. No Root, no TWRP whatsoever.
Follow wiki lineageos devices website instructions. Here you may also find the recovery data.
Thx guys/girls!
Click to expand...
Click to collapse
Cool. No more soft brick for you :good: Congrats on sorting things out. :highfive:

BUT I still cannot install TWRP Recovery on LineageOS 17. I am getting the same problem as quoted below.
I want to perform Nandroid Backups, any other way to that if TWRP doesn't want me? Maybe with a Magisk Root and some app from F Droid?
?
thanks
dadu1257 said:
Thank you, this worked perfectly fine, since you don't need an unlocked bootloader to flash this system image.
However, I am facing a new problem on my way to installing TWRP Recovery Image...!!
CMD gives me THIS log:
Writing 'recovery' FAILED (remote: 'Not allowed to flash (recovery)')
fastboot: error: Command failed
- the device is unlocked (I even relocked it and unlocked it again, didn't work)
- I tried one other older .img for my phone from official twrp.me website, didn't work
Any Ideas?
Click to expand...
Click to collapse

dadu1257 said:
BUT I still cannot install TWRP Recovery on LineageOS 17. I am getting the same problem as quoted below.
I want to perform Nandroid Backups, any other way to that if TWRP doesn't want me? Maybe with a Magisk Root and some app from F Droid?
?
thanks
Click to expand...
Click to collapse
Twrp doesn't work very well on android 10 and above, there is a twrp install guide around here, but not much has come from it. When was the last time anyone actually made and used a nandroid backup? Not that backups aren't important, but that's a little antiquated. Besides, most are really trying to backup data, which is a shared partition on A/B devices. Generally, restoring data on A/B devices causes more problems than anything. Most data backups can be done with an app and/or making a backup of your internal storage. As for more sensitive things like your persist partition and whatnot, you can always use the 'dd' command to back those partitions up.
I should clarify, restoring nand backups of data causes more problems on A/B devices, apps that restore data and settings tend to handle it better.

Now having a different problem
I tried to install Magisk following this guide https://magisk.download/root-pixel-3a-3a-xl/
When I try to flash magisk_patched.img in fastboot, it flashes, but reboots to fastboot with "error boot prepare" displayed.
I am stuck in Fastboot now.
How can I get out of that?
I used the boot.img from the google firmware android 10 I built Lineage on. Should I use a boot.img from LineageOS .zip? Is there anything like this?
What is dm-verity?
Can I get to my previous unrooted device?
I have a Pixel 3aXL with LineageOS 17
''bootslot: b
enter reason: error boot prepare''

dadu1257 said:
Now having a different problem
I tried to install Magisk following this guide https://magisk.download/root-pixel-3a-3a-xl/
When I try to flash magisk_patched.img in fastboot, it flashes, but reboots to fastboot with "error boot prepare" displayed.
I am stuck in Fastboot now.
How can I get out of that?
I used the boot.img from the google firmware android 10 I built Lineage on. Should I use a boot.img from LineageOS .zip? Is there anything like this?
What is dm-verity?
Can I get to my previous unrooted device?
I have a Pixel 3aXL with LineageOS 17
''bootslot: b
enter reason: error boot prepare''
Click to expand...
Click to collapse
Reflash the boot.img from Los17 to get back to proper boot up, then patch Los17 boot.img and flash that to have root.

41rw4lk said:
Reflash the boot.img from Los17 to get back to proper boot up, then patch Los17 boot.img and flash that to have root.
Click to expand...
Click to collapse
Where is the boot.img from Lineage? There is no such file in the Lineage folder I downloaded.

dadu1257 said:
Where is the boot.img from Lineage? There is no such file in the Lineage folder I downloaded.
Click to expand...
Click to collapse
A lot of devs wil upload the boot.img separately when they upload the rom, so wherever you downloaded Los from check there. If you just have a payload.bin file in your zip, you can always dump it and grab the boot.img there. You could always just reflash Los period to get boot back, then us 'dd' command to backup your own boot.img.

custom recovery for lineageos 17 based on android 10?
teemothay said:
I'm pretty sure you would have to downgrade to android 9 (pie) and install a custom kernel to get twrp to install. Unless you want to rock android pie - like I currently am (Bootlegger's 9 - I like my smartbar customizations) - it's best to give up on TWRP and just use fastboot commands for android 10 and up.
If you do decide to downgrade to pie the elementalX kernel (ElementalX-P3a-1.06) works fine with twrp and is available on their site. Temp boot twrp via fastboot, flash kernel, flash twrp zip file, reboot to recovery and flash magisk zip for root (if you want root). But it may be hard to find older pie ROMs out in the wild to flash since devs have dropped support and will be focused on android 10/11.
Click to expand...
Click to collapse
thanks!
I got Lineage 17 w/ Magisk root running now and want to perform a full NANDroid Backup.
After some research it seems crucial to have a custom recovery like TWRP for that. There is the online nandroid thing - but I would need CWM or anything like this to restore?!
So my question is
a) is there another custom recovery (compatible with Pixel 3a XL w/ lineage 17 based on android 10) I can install and perform Nandroid backup with?
b) any other solution to perform this backup and restore? I heard there are cmd commands for that as well , but I'm a noobie not so sure to do that.
of course there are several apps out there to backup data.. but I don't trust ''any'' app to get root permission. In F Droid I couldn't find what I was looking for.
thank you for help!