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Installed Nougat but cannot get TWRP to work. Need help rolling back to marshmallow!

Ive tried to install TWRP via adb about 3 times now and it just will not work. The install goes perfectly but when i try to enter recovery mode from the phone being turned off, it just infinitely says my phone is booting. Does not go into twrp at all. My Nougat installation is extremely buggy. I have no model number, i went through complete hell to even enter my google account info. Everything seems to work fine on nougat though but i just cannot stand the bugged installation. Could really use some help.....
EDIT: Flashed TWRP through adb sideload and the phone just sits there still even when i enabled usb debugging and all. Bluetooth doesnt work and NFC doesnt work. But everything else works perfectly fine. It would just be nice to get the full functionality of my phone back. Phone isnt rooted. Just need some quick assistance.... Thanks for whomever answers.
United States user
Huawei NXT-L29
Android 7.0

have you tried to flash through fastboot the twrp in this thread? http://forum.xda-developers.com/mate-9/development/recovery-unofficial-twrp-huawei-mate-9-t3515617 (do not worry if is for mate 9. it works anyway)
also please check if your bootloader is unlocked before doing it.
download srk huawei tool, is pretty easy to use: http://forum.xda-developers.com/mate-8/development/tool-srk-tool-huawei-t3369797

First you need to roll back to ur previous firmware.
You can try dload method using ur previous firmware or use rollback package.http://forum.xda-developers.com/mate-8/general/best-easiest-to-rollback-to-emui-4-0-t3507399/page1
When ur back with a working firmware,you have to unlock bootloader if its locked again,and flash twrp.
Once done u have to download nougat firmware with the data zip ment for ur region.
Go to twrp install the 2 zips( firmware and data) than reboot.
If the phone didn't boot after 10 minutes ,reboot into recovery( twrp will be replaced with stock recovery after installing the zips) and do factory reset.

Omg i forgot that the bootloader might be locked.. Ill try to find the comand to put my unlock code in and get back to this thread.. Thanks so much for suggestions.. Though ive had tkbdeal with it nougat is FANTASTIC

UPDATE: So far nothing is working. Tried the rollback packages and im still on nougat. I have an actual firmware version now. But its Russian firmware? Trying the dload method with L29185 firmwares like 200 and 320 and nothing works. Tried many things and now i cannot even install twrp. The install process would work it just wouldnt do anything when i tried to boot to twrp but now when i try to flash twrp over the recovery it just completely fails. no error code it just says it cannot find a file by that name or it cannot read it. adb says the bootloader is unlocked. Am i just completely stuck here on a buggy nougat installation? Is there any way to force a twrp backup to load outside of twrp?

gm007 said:
First you need to roll back to ur previous firmware.
You can try dload method using ur previous firmware or use rollback package.http://forum.xda-developers.com/mate-8/general/best-easiest-to-rollback-to-emui-4-0-t3507399/page1
When ur back with a working firmware,you have to unlock bootloader if its locked again,and flash twrp.
Once done u have to download nougat firmware with the data zip ment for ur region.
Go to twrp install the 2 zips( firmware and data) than reboot.
If the phone didn't boot after 10 minutes ,reboot into recovery( twrp will be replaced with stock recovery after installing the zips) and do factory reset.
Click to expand...
Click to collapse
ok so now most of this is done. Excuse me for pulling you aside I do hope you reply. Im having an issue getting twrp to work. Im on an official stock firmware. Bootloader unlocked, flashed twrp and im stuck at the screen that says my device cannot be trusted. Its on its way to booting to twrp but it completely wont. Its just stuck at that screen for about 5 minutes now. Ive let it ride and i think its just frozen there. Any ideas? im using the twrp posted by the commenter above you. The 3.0.2-1 and this is where im at.

Well now i cannot get my phone to stop wanting to factory reset itself. It keeps trying to boot into recovery and twrp is flashed over stock recovery and twrp still wont boot even though bootloader is unlocked. it freezes at the unsafe device booting screen every time it starts. I think this phone is bricked beyond repair now. Nougat update completely ruined my phone.

OcazPrime said:
ok so now most of this is done. Excuse me for pulling you aside I do hope you reply. Im having an issue getting twrp to work. Im on an official stock firmware. Bootloader unlocked, flashed twrp and im stuck at the screen that says my device cannot be trusted. Its on its way to booting to twrp but it completely wont. Its just stuck at that screen for about 5 minutes now. Ive let it ride and i think its just frozen there. Any ideas? im using the twrp posted by the commenter above you. The 3.0.2-1 and this is where im at.
Click to expand...
Click to collapse
That twrp is for mate 9 and will not work for mate 8 you need to fastboot another twrp. You need to flash another twrp you can try the twrp for the honor 8 which will work on mate 8
http://forum.xda-developers.com/honor-8/how-to/twrp-nougat-edition-t3504140
You will be to get into this twrp but not all functions are working.
---------- Post added at 02:03 AM ---------- Previous post was at 01:59 AM ----------
OcazPrime said:
Well now i cannot get my phone to stop wanting to factory reset itself. It keeps trying to boot into recovery and twrp is flashed over stock recovery and twrp still wont boot even though bootloader is unlocked. it freezes at the unsafe device booting screen every time it starts. I think this phone is bricked beyond repair now. Nougat update completely ruined my phone.
Click to expand...
Click to collapse
As long as you can get into fastboot mode, you can recover. Try to flash the nougat stock recovery then use the rollback package (try all three to see which one work) then you can dload back to your previous rom.
---------- Post added at 02:06 AM ---------- Previous post was at 02:03 AM ----------
Icchan said:
have you tried to flash through fastboot the twrp in this thread? http://forum.xda-developers.com/mate-9/development/recovery-unofficial-twrp-huawei-mate-9-t3515617 (do not worry if is for mate 9. it works anyway)
also please check if your bootloader is unlocked before doing it.
download srk huawei tool, is pretty easy to use: http://forum.xda-developers.com/mate-8/development/tool-srk-tool-huawei-t3369797
Click to expand...
Click to collapse
Did you try it and it works for you? I flashed this twrp and my phone just get stuck at the screen "your phone is booting" and I have to flash another twrp.

In total what ive done up to my current state:
Flashed nougat in. Installed wrong tried reverting and noticed twrp wouldnt boot. Downloaded rollback packages. Only the russian one worked and ended up on C636B180 firmware. Checked my other recovery thread for twrp and got twrp working finally. TWRP wont flash any roms for some reason. When it flashes roms it doesnt actually install anything. When i boot it just sits there on the screen you get with an unlocked bootloader i havent let it sit there for long because when i get back into twrp and check the file manager, there are no files in sdcard. So my rom straight up didnt install. When i check it on my pc the storage size hasnt decreased at all. Its just completely screwed right now and im so frustrated im probably getting a new phone.

OcazPrime said:
In total what ive done up to my current state:
Flashed nougat in. Installed wrong tried reverting and noticed twrp wouldnt boot. Downloaded rollback packages. Only the russian one worked and ended up on C636B180 firmware. Checked my other recovery thread for twrp and got twrp working finally. TWRP wont flash any roms for some reason. When it flashes roms it doesnt actually install anything. When i boot it just sits there on the screen you get with an unlocked bootloader i havent let it sit there for long because when i get back into twrp and check the file manager, there are no files in sdcard. So my rom straight up didnt install. When i check it on my pc the storage size hasnt decreased at all. Its just completely screwed right now and im so frustrated im probably getting a new phone.
Click to expand...
Click to collapse
If you are back to C636B180 firmware, you need to unlock the phone, flash twrp, which is fully working in emui 4, root the phone then use SRK to change to the software region you want:
http://forum.xda-developers.com/mate-8/development/tool-srk-tool-huawei-t3369797

Can i just download a superuser zip and flash it with twrp to root? Havemt rooted this phone in forever cuz i never did much with it since my first and only rooting

The reason why recovery doesn't work is due to kernel isn't supported on new bootloader

LastStandingDroid said:
The reason why recovery doesn't work is due to kernel isn't supported on new bootloader
Click to expand...
Click to collapse
What?

The previous twrp version doesn't work on nougat due to kernel.
I guess it's selected by bootloader or the new teecd
You can download twrp as mentioned here
http://forum.xda-developers.com/showthread.php?p=70126187
Also @tknguyencsu what works in that version for your mate 8?
Does MTP work and adb?
Data won't work unless you use encrypted version.
Sent from my FRD-L09 using Tapatalk

OcazPrime said:
Ive tried to install TWRP via adb about 3 times now and it just will not work. The install goes perfectly but when i try to enter recovery mode from the phone being turned off, it just infinitely says my phone is booting. Does not go into twrp at all. My Nougat installation is extremely buggy. I have no model number, i went through complete hell to even enter my google account info. Everything seems to work fine on nougat though but i just cannot stand the bugged installation. Could really use some help.....
EDIT: Flashed TWRP through adb sideload and the phone just sits there still even when i enabled usb debugging and all. Bluetooth doesnt work and NFC doesnt work. But everything else works perfectly fine. It would just be nice to get the full functionality of my phone back. Phone isnt rooted. Just need some quick assistance.... Thanks for whomever answers.
United States user
Huawei NXT-L29
Android 7.0
Click to expand...
Click to collapse
Budy I have same problem Pls note me when u find somethıng :=)) ıf I then ı will let u know.

TWRP Recovery 3.0.3
Download TWRP Recovery 3.0.3
http://sillanwali.com/downloads/twp-3.0.3.img

Device won't boot, tried rayglobe, tried fastboot flash, no firmware downloads availa

I have an NXT-L29 (432). I've really loved this phone besides the headaches of modding. I've been doing this for years, am well acquainted with fastboot and ADB. I promised I've searched and read as much as I can, I keep getting dead ends.
I'll try to recount what I've done but I've tried so many things I'm probably a bit mixed up. Was using b180 and and Ephemeral Rom for months, decided to go to b321 for black pyramid. Trouble began. Tried dload method (button method wouldn't work,used dialer), it rebooted back to the custom rom. Went to recovery, still TWRP. Wiped, it booted into stock EMUI. Was still rooted, with kangtools somehow. Tried using supersu unroot, failed. Flashed stock recovery from bootloader hoping to update to nougat (gave up on b321), since then it won't boot and I can only get into bootloader and eRecovery. Tried downloading latest version and recovery, getting package fails. Tried reflashing TWRP in bootloader, shows success but brings me back to Erecovery. Tried rayglobe knife unbrick with extracted images from what I believe is my stock firmware. It completes, I press any key to reboot and get stuck on the 'your device is unlocked and can't be trusted' screen. I let it sit there overnight. Tried relocking bootloader but it can't because of root type. Tried manually flashing cust, boot, system, recovery, which is successful, yet I still get stuck at the 'your device has been unlocked and can't be trusted'. Tried using HRK tool but ADB isn't authorized? USB debugging was allowed before I got locked out. I'm stuck, don't know what else to do. I've thought to download another stock firmware but none of the links in the stock thread work anymore. Any help would be greatly appreciated.
One thing that is really racking my brain, why does Erecovery remain after fastboot flashing twrp?

Somehow got back into twrp, flashed 7.0 files and now running nougat. Cannot get back to twrp for the life of me and it doesn't always boot but it's progress. This phone is crazy.

Hello.
I unbricked my phone few. Weeks ago. Now it's fully fonctionnal. But I still can't boot to TWRP. The only manner I found, it's using srktool to reboot in TWRP... The official manner start erecovery too.

hi friend,have you problem....
help meeeee.
have flash a lot rom with fastboot unbrick
but no star sistem
have rom 192 emiui 4

Bricked honor 8 please help

Hello, today while trying to get back to stock i wierdly bircked my honor 8
I flashed the stock recovery and stock boot img
Then i flashed a rollback package and a marshmallow package which i used for this same thing before.
Now the phone didnt start for a solid 30 minutes and ive decided to reflash the rollback and marshmallow package, but after i flashed the rollback got stuck at the boot logo, not even the stock bootanimation showing up.
The phone doesnt reboot neither in any of the recoveries nor in bootloader.
Any help would be appreciated.
Stephen

Okay so after all of this i managed to reboot to bootloader and get my hands on one of my previous unlock codes. So now ive got an unlocked bootoader, but after fashing twrp the phone is stuck at the 'your device is booting now' when im trying to get in it

I thing you have flashed the wrong TWRP, check for the latest version or at least the one for your build

uh well, hello there again.
i've tried to do the dload method which failed(i used lots of versions tho none worked)
and i've tried flashing marshmallow twrp, which at the moment, well, it cannot mount anything. no partition can get mounted.
Does any of you guys have an idea of what i could try?
thanks in advance

Does it mean that you have access to TWRP ? if TWRP cannot mount a partition, go into mount section, tick system, data, boot, vendor and then reboot to TWRP again. Then try your previous operation. If it cannot mount data, go into wipe, advanced wipe, and click on format data, then restart TWRP and try again

seems like i somehow broke the partition table, cause it shows every storage as 0 mb and mounting isn't available, cant tick the option. Looks like i will have to find some service center to repair it by my own cost, by the end of the month. Though im giving it around the 25th so i got some more time till then, so maybe i find some solution to this problem.

Hey, so I managed to make the phone work again.
I have flashed boot cust recovery recovery2 and system from the italian marshmallow firmware, then I flashed that same firmware using dload method(tho it failed at 99%)

ØG_SQUAÐ said:
Hey, so I managed to make the phone work again.
I have flashed boot cust recovery recovery2 and system from the italian marshmallow firmware, then I flashed that same firmware using dload method(tho it failed at 99%)
Click to expand...
Click to collapse
You tried only once? Maybe you should now try to flash TWRP recovery and restore a backup made by TWRP. I can provide you one but for FRD-L09, not another. Another method would be to flash the rollback package and then retry flashing an EMUI 4.X ROM (dload method for both), hope you'll figure it out

I think i expressed myself wrong.
That was how i got the phone to work.

Oh lol I misunderstood because of the "it failed at 99%" and I thought the phone wasn't rebooting , no matter I'm glad you succeeded

[Bricked] One of the harder ones =|

I'm gonna keep it simple, here is the scenario:
ROM is corrupted.
Bootloader is unlocked.
FRP lock is on. (fastboot can't do much)
TWRP was flashed back to stock.
Stock hard-reset fails. (even wipe option)
Force upgrade stops at 5% (swear I am using the same one)
eRecovery does not work.
Can't flash. Can't push files.
Wat do.
Model: BLN-L24C567B369 (pretty sure this was it)
Whole story:
This whole episode began when I wanted to install Magisk to use MagiskManager's HideMe feature. This required me to install TWRP recovery which inturn lead me to unlock my bootloader in the process, straightforward and went off nicely. Now it was time to gain superuser which I already had done before on another device, installing SuperSU through TWRP recovery was painless but after booting found out MagiskManager needs Magisk Root to work. I then followed Android Exlpained's article to do so. Running unSU through recovery went smoothly but running Magisk didn't, on the initial run I was prompted to use Adrian DC's BootBridge which after removing a few Assert lines ran nicely. However there was no root install, SuperSU was removed though.
At the time I wasn't sure what exactly I was doing and ended up soft-bricking by flash boot through TWRP, at this time FRP was unlocked. After many many hours I restored to stock firmware by using YMNDLZ's guide. I used BLN-L24C567B370(OTA-MF-FULL) for the img files then proceed to flash the vendor.img using TWRP and the rest (boot.img, recovery.img, system.img) using fastboot in that order as instructed. The only part which didn't work was the forced update, it always failed at 5% however after more hours going recovery mode (now stock) wiping the cache and data/factory reset did the trick (Note: my model showed BLN-L24C567B369). I proceeded to reinstall TWRP, installed MagiskManager, tried to install Magisk 16.0 which ran but didn't root me but was fine because MagiskManager's download worked. I then thought since I went through all this trouble might as well install a custom rom, EliteRom was my ROM of choice. At this point I had logged in with my gmail credentials FRP was now locked.
*Before further action was taken I took the precaution to backup my current stable stock ROM after installing EliteROM but before booting*
The steps to install EliteROM went by flawlessly, installed EliteTWRP reboot into it, ran EliteROM
went through the setup without any hiccups. However up system restart I the ROM wouldn't boot leading me to boot into my recovery only to be prompted for an encryption password (???). Since I didn't recall setting one, couldn't boot into the OS, and FRP was locked I couldn't read my own internal storage. So I reformatted the internal storage and tried what had worked before, flashing the img files using TWRP then booting into stock recovery wiping cache and data/hard reset. . . this did not work. And here I am FRP locked so fastboot isn't useful (I think?), stock recovery doesn't work, eRecovery fails connection, and force update still fails at 5% with "Software install failed!".
Click to expand...
Click to collapse
Lemme know if there is any insight anyone can provide and thanks in advance.

This problem has been solved?

MisterRee said:
I'm gonna keep it simple, here is the scenario:
ROM is corrupted.
Bootloader is unlocked.
FRP lock is on. (fastboot can't do much)
TWRP was flashed back to stock.
Stock hard-reset fails. (even wipe option)
Force upgrade stops at 5% (swear I am using the same one)
eRecovery does not work.
Can't flash. Can't push files.
Wat do.
Model: BLN-L24C567B369 (pretty sure this was it)
Lemme know if there is any insight anyone can provide and thanks in advance.
Click to expand...
Click to collapse
you have to follow only xda methods to root or change to custom rom. i have never heard about flashing stock images from twrp. i think u didn't followed elite rom instructions clearly. you need to formate data then reboot to recovery then wipe everything then flash the os in this way you won't get encription error. anyway now your frp is locked so there is no way to flash twrp so download all the available firmwares for your phone oeminfo then do flashing via dload you will get it worked.
even i was also once stuck with elite rom. i didn't liked it because missing apps icon and forgetting permission. i tried to go back to stock but stuck at 5% error. then went to google searched stock rom for honor 6x india and downloaded nearly 3 roms last one worked helped me to get back to stock.
never flash system images boot,vendor etc from fastboot and twrp unless you are on emui8 and going to try gsi roms.

hey i cant revert back to stock rom. it fails to get package from server. does jio voice calling works on this device?? if no then plz guide me how to go back to stock rom..

MisterRee said:
I'm gonna keep it simple, here is the scenario:
ROM is corrupted.
Bootloader is unlocked.
FRP lock is on. (fastboot can't do much)
TWRP was flashed back to stock.
Stock hard-reset fails. (even wipe option)
Force upgrade stops at 5% (swear I am using the same one)
eRecovery does not work.
Can't flash. Can't push files.
Wat do.
Model: BLN-L24C567B369 (pretty sure this was it)
Lemme know if there is any insight anyone can provide and thanks in advance.
Click to expand...
Click to collapse
Register for update using firmware finder and Puts dns address in the router settings and then use erecovery

Fastboot Bootloop

I got my OnePlus 7 Pro today and tried to install Magisk by patching the boot.img. After trying to flash the patched image, I now have an issue where rebooting the devices leads me straight back to the bootloader. Trying to enter recovery also leads me straight back to the bootloader. I tried flashing the original boot.img I extracted from the OTA update file provided by OnePlus, but it still isn't working. I do not have TWRP or any custom recovery installed. Any help would be much appreciated. I noticed similar threads, however they all installed twrp, though I haven't yet as trying to run "fastboot boot twrp.img" always resulted in it booting to a screen saying "fastboot mode" which wasn't terribly helpful.
Edit: Its not the tmobile/5g/carrier version. I purchased it through OnePlus' website though I forget the exact model number.

Well, "fastboot boot twrp.img" does not work on all devices, sometimes you have to use: fastboot flash boot insert_twrp_img_name_here.img​Learned that the hard way, also use the unofficial twrp from mauronofrio.
Had the same problem as you have, and fixed it with that unofficial twrp.

Faith1105 said:
Well, "fastboot boot twrp.img" does not work on all devices, sometimes you have to use: fastboot flash boot insert_twrp_img_name_here.img​Learned that the hard way, also use the unofficial twrp from mauronofrio.
Had the same problem as you have, and fixed it with that unofficial twrp.
Click to expand...
Click to collapse
Did you need to completely revert to stock after the issue, or did flashing twrp fix the fastboot loop?
Edit: Trying to flash the stock fastboot rom currently as flashing twrp did nothing probably because me trying to fix it broke everything. Hopefully the stock rom will get everything back to a working state where I can try again, just this time flashing twrp.
Also using windows this time instead of linux....

mnbvcxzl90 said:
Did you need to completely revert to stock after the issue, or did flashing twrp fix the fastboot loop?
Edit: Trying to flash the stock fastboot rom currently as flashing twrp did nothing probably because me trying to fix it broke everything. Hopefully the stock rom will get everything back to a working state where I can try again, just this time flashing twrp.
Also using windows this time instead of linux....
Click to expand...
Click to collapse
Ok, so, trying to restore stock seems to have failed miserably.... any advice is most welcomed qq

OK.... so trying to unbrick the device using the msm stuff, I couldn't even make it to the downloader screen. After holding volume +/- and powering off, my screen is now black HOWEVER the phone gets detected by windows when I plug & unplug it. I have no idea what to do anymore. Someone please help

Figured I'd give the solution here in case someone else is in the same exact problem as me:
Follow the instructions over at https://forum.xda-developers.com/oneplus-7-pro/how-to/op7pro-collection-unbrick-tools-t3956595
I tried to de-brick it using the fastboot roms and all that, no dice. The only thing that seems to have worked was following the above and using the msm tool. Everything wiped, but hey, at least the phone is bootable again and now I have a way to fix it should this happen again. Yay for happy endings.
Edit: Also, following Faith1105's advice, flashing twrp to boot instead of trying to just boot it first worked successfully and from there I was able to install magisk.
Edit 2: Now wifi isn't working.... why life, why...
Edit 3: OK: EVERYTHING IS GOOD NOW. Twrp ran into a boot loop issue, used twrp to flash the most recent android 10 zip, rebooted and was greeted by stock recovery, then used that to wipe absolutely everything and reboot. After skipping through initial setup and making use wifi was working I rebooted again and this time tried booting twrp the way the usual instructions say to, this time it worked for whatever reason so once that started I used twrp to flash twrp's installer and magisk. It looks like everything is working correctly now. If you have the same issue maybe this stuff will work for you or maybe not: I don't know, and honestly I'm now brain dead lol.