Database Users

Problem downgrading to MM from N

Hey guys!
I've installed the Nougat beta for my P9 Lite VNS-L21 Dual Sim, but now I want to downgrade to MM. This is what I did:
0. Installed Nougat via Melticulus TWRP
1. Installed Revolution Recovery (because Melticulus TWRP had stopped working, idk why)
2. Flashed OEMInfo
3. Copied Version B150/B151 (I've tried both) to the SDCard
4. Started the P9 Lite with Power + Volume UP + Volume DOWN and tried to flash one of the versions.
I'm stuck here, the Huawei Recovery says the following: "Software install failed! Incompatibility with current version. Please download the correct update package!"
I've used HTC Mania, Thread NR 1200630 to download the stock rom for my P9 Lite, I've tried both the VNS-L21C432B151 Android 6.0 EMUI 4.1.1 Europa and the VNS-L21C432B150 Android 6.0 EMUI 4.1.1 Europa

4240Benny said:
Hey guys!
I've installed the MM beta for my P9 Lite VNS-L21 Dual Sim, but now I want to downgrade to MM. This is what I did:
0. Installed MM via Melticulus TWRP
1. Installed Revolution Recovery because Melticulus TWRP had stopped working (idk why)
2. Flashed OEMInfo
3. Copied B150/B151 (I've tried both) to the SDCard
4. Started the P9 Lite with Power + Volume UP + Volume DOWN
I'm stuck here, the Huawei Recovery says the following: "Software install failed! Incompatibility with current version. Please download the correct update package!"
I've used HTC Mania, Thread NR 1200630 to download the stock rom for my P9 Lite, I've tried both the VNS-L21C432B151 Android 6.0 EMUI 4.1.1 Europa and the VNS-L21C432B150 Android 6.0 EMUI 4.1.1 Europa
Click to expand...
Click to collapse
You installed MM BETA on MM and now wanna downgrade to MM ..? You know what means MM? On which mm you ware before?

sorry. I've corrected my question, looks like I was a bit brain afk... Whatever, thank you for your help!
(Yes, i know what MM means (Marshmallow), N menas Nougat)

4240Benny said:
sorry. I've corrected my question, looks like I was a bit brain afk... Whatever, thank you for your help!
(Yes, i know what MM means (Marshmallow), N menas Nougat)
Click to expand...
Click to collapse
SALUT have you, before flashing oeminfo, allowed Storage parameters, default location SD card.

Chisetdel31260 said:
SALUT have you, before flashing oeminfo, allowed Storage parameters, default location SD card.
Click to expand...
Click to collapse
I've changed the default location to SD Card in TWRP (Install Zip --> Select storage) because don't have access to my os any more, bot how do I allow Storage Parameters?

4240Benny said:
I've changed the default location to SD Card in TWRP (Install Zip --> Select storage) because don't have access to my os any more, bot how do I allow Storage Parameters?
Click to expand...
Click to collapse
Ok so if you have allowed it, well, flasher b130full it will have to go.
If not, twrpnougat nougat fash, just to start, authorized SD card storage location.
Returned to TWRPNougat flash oeminfo and restarted with dload.
http://www.htcmania.com/showthread.php?t=1265458

Chisetdel31260 said:
Ok so if you have allowed it, well, flasher b130full it will have to go.
If not, twrpnougat nougat fash, just to start, authorized SD card storage location.
Returned to TWRPNougat flash oeminfo and restarted with dload.
http://www.htcmania.com/showthread.php?t=1265458
Click to expand...
Click to collapse
Thank you, I'll try this

It doesn't work for me. The strange thing is I can't even flash system using fastboot, it gives me a FAILED (remote: sparse flash write failure) error...

can someone send me a NANDROID BACKUP of MM for VNS-L21?
PLS!!!!!!

Check bootloader,? The fastboot works, ?
TWRPNougat could install you a firmware nougat b3xx.zip + b3xxhw.zip and restart telephone.?
Which oeminfo used you ?

Chisetdel31260 said:
Check bootloader,? The fastboot works, ?
TWRPNougat could install you a firmware nougat b3xx.zip + b3xxhw.zip and restart telephone.?
Which oeminfo used you ?
Click to expand...
Click to collapse
Well, fastboot works, I'm able to flash recovery, recovery2 and boot but I'm not able to flash system. I can't install any os. I've used the C432OemInfo-DUALSIM-P9LITE.zip from @BadWolfYe.

???
what do you want now?
downgarde to mm or install Android N you can do both in this situation

Pls help me asap!!!!!!!
Just send me a nandroid backup of mm for vns-l21 dual sim please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

soory dude I have also installed android n on vns l21 dual sim and don`t have mm back up but I can tell you the process by whick you can also install mm or n on your device in this situation tooo

shann1231 said:
what do you want now?
downgarde to mm or install Android N you can do both in this situation
Click to expand...
Click to collapse
Well, no, I can't. Thats the problem. When I try to flash MM system.img it doesn't work (see post above) and when I try to do it with the dload method it tells me that the version is not compatible...

shann1231 said:
soory dude I have also installed android n on vns l21 dual sim and don`t have mm back up but I can tell you the process by whick you can also install mm or n on your device in this situation tooo
Click to expand...
Click to collapse
well...how?
and pls help me ASAP!!!!!

All you Have to do us download huawei update.app extracter and open mm update.app in it and extract boot.img,recover.img,system.img,userdata.img,oem.img and extract these files in adb tools folder then open maf32 and reboot your p9 lite in fastboot by going in revolutionary recovery>reboot>bootloader
then after your device is in boot loader enter the following commands
coomand will be In next message

shann1231 said:
All you Have to do us download huawei update.app extracter and open mm update.app in it and extract boot.img,recover.img,system.img,userdata.img,oem.img and extract these files in adb tools folder then open maf32 and reboot your p9 lite in fastboot by going in revolutionary recovery>reboot>bootloader
then after your device is in boot loader enter the following commands
coomand will be In next message
Click to expand...
Click to collapse
alright...

shann1231 said:
soory dude I have also installed android n on vns l21 dual sim and don`t have mm back up but I can tell you the process by whick you can also install mm or n on your device in this situation tooo
Click to expand...
Click to collapse
Could you explain it here? Maybe it solves my problem too

just tell me one thing why are you installing mm when you can install android n

P9 lite L21 nougat bricked

Hey guys, so I hope someone can give me a hint at what I'm doing wrong. I have a Huawei P9 lite, single sim L21 version. I updated it to nougat, then installed revolution twrp, and I suppose at some time I did a wipe, or something, but anyways I have no OS on my phone.
After that, I can't get anywhere. The only options I can access are the fastboot and the revolution recovery, which would've been enough, but I can't install any ROMs. Like literally any, I can't install my old firmware, I can't install Nougat, I get errors using sideload, errors using DLOAD method from SD, not flashing system.img, boot.img etc from fastboot.
I did the rollback thing, including flashing the oeminfo in that guide. Still no solution.
Any suggestions are more than welcome, including words like "you should've known better"

nristic said:
Hey guys, so I hope someone can give me a hint at what I'm doing wrong. I have a Huawei P9 lite, single sim L21 version. I updated it to nougat, then installed revolution twrp, and I suppose at some time I did a wipe, or something, but anyways I have no OS on my phone.
After that, I can't get anywhere. The only options I can access are the fastboot and the revolution recovery, which would've been enough, but I can't install any ROMs. Like literally any, I can't install my old firmware, I can't install Nougat, I get errors using sideload, errors using DLOAD method from SD, not flashing system.img, boot.img etc from fastboot.
I did the rollback thing, including flashing the oeminfo in that guide. Still no solution.
Any suggestions are more than welcome, including words like "you should've known better"
Click to expand...
Click to collapse
lock your bootloader and make a folder called dload inside of your sd card whitin the update.app try like that.
But......be sure you flash the good frimware ortherwise you'll end up like me blackscreen,

Nope. Did not work. Not compatible. BTW, when I'm in revolution recovery it constantly says it cant mount vendor. Any ideas?
Btw thank you so much for answering!

Wiped everyting with TWRP and now can't go back to MM after nougat

Hello,
I've followed this thread https://forum.xda-developers.com/hu...t/24-12-16-revolution-nougat-rom-rc1-t3525138 to install nougat. Then, after some issues with it I wanted to go back to MM, however the method described there does not work. I can use TWRP and Fastboot is fine, I install the oeminfo and then when trying to install the stock rom it just fails at 5% . over and over. Anyone elese experienced this?
I'm on VNS-L21 btw.
Cheers!

Maybe your update.app is corrupted..try download again..

I've tried several times with several update.app files corresponding to B150 and B161(latest) for my device. I also noticed that TWRP is showing an error that /system cannot be mounted when I try to install nougat again (desperate attempt).
trying to flash system with fastboot fails as well..

You flashed the oeminfo for VNS-L31.

Johnny TDN said:
You flashed the oeminfo for VNS-L31.
Click to expand...
Click to collapse
I'm back!
Finally made some progress. I have my own oeminfo I restored from twrp, I have nougat back up by flashing /system.img, cache, etc
However I don't have the radio. Anyone can help on that end? I know fastboot has fastboot flash radio, but which is the correct .img for that?

Extract radio from update.app and flash it whit fastboot?

yep, but I can't tell what the radio package name is. I see modem, could that be it?

Help unbrick Mate 8 l29c636b521 nougat

I successfully upgraded my Mate 8 to nougat. Then I tried to root the phone. In the middle of flashing superSu, my phone suddenly rebooted and stuck on the bootloop. It never booted again. I tried searching for all the possibilities to unbrick it, but no hope. My mate 8 is bootloader-unlocked. My phone won't boot to trwp even I tried to fashboot flash the it. I really need help from the experts. Thank you all in advance.
I accidentally posted on the wrong subf-forum, please move this post over to the Q&A troubleshooting . thanks you

1.Turn off the phone
2.Connect pc usb cable
3.Hold power+vol down
u should see rescue bootloader page,
now u can flash twrp recovery (for emui5 of course) then u can boot into twrp and do the firmware flashing again
Sent from my HUAWEI NXT-L29 using Tapatalk

amin318 said:
1.Turn off the phone
2.Connect pc usb cable
3.Hold power+vol down
u should see rescue bootloader page,
now u can flash twrp recovery (for emui5 of course) then u can boot into twrp and do the firmware flashing again
Sent from my HUAWEI NXT-L29 using Tapatalk
Click to expand...
Click to collapse
Do Exatly what he said

I did flash the 3.0.2.0-next twrp My phone won't boot to TWRP mode. I don't know if I should flash the stock nougat recovery.img and then flash the twrp.img ?
Was the 3.0.2.0-next right for the nougat ? thanks
After trying to flash twrp many times, the screen is always on " your device is booting now .. "

Did u tried frd-twrp for emui5?
https://mega.nz/#!xg8lVBgJ!4v0DbY-QLGtQVnYvTkTtIXRBmx5q-ZoJp90PSMqlh-U
If it didn't worked try to dload ur last emui4.x via SD card, sometimes it work
Sent from my HUAWEI NXT-L29 using Tapatalk

anthony.ha92 said:
I did flash the 3.0.2.0-next twrp My phone won't boot to TWRP mode. I don't know if I should flash the stock nougat recovery.img and then flash the twrp.img ?
Was the 3.0.2.0-next right for the nougat ? thanks
After trying to flash twrp many times, the screen is always on " your device is booting now .. "
Click to expand...
Click to collapse
If you downloaded from the official TWRP app. It can't be use. You need twrp Nougat that given by @amin318

I successfully unbricked my Mate. It is fully working again. Thank you guys for the help. I really appreciate it.
Flash twrp, flash both update zip and hw_data side by side, reboot to recovery to do a factory reset and then system reboot wait few minutes and then boom, working Mate 8 again.
oh and one more question, im currently on the official beta b521, I found the b563 via the firmware finder.
There are 2 files, one OTA for 400mb, and the other OTA for 1.3 gb. which one should I download in order to upgrade to B563 ? And do I do it by the dload method ?

anthony.ha92 said:
I successfully unbricked my Mate. It is fully working again. Thank you guys for the help. I really appreciate it.
Flash twrp, flash both update zip and hw_data side by side, reboot to recovery to do a factory reset and then system reboot wait few minutes and then boom, working Mate 8 again.
oh and one more question, im currently on the official beta b521, I found the b563 via the firmware finder.
There are 2 files, one OTA for 400mb, and the other OTA for 1.3 gb. which one should I download in order to upgrade to B563 ? And do I do it by the dload method ?
Click to expand...
Click to collapse
Just get the 1.3gb and push it to system updater.

HELP
I need your help¡¡ I have the same error , can you explain that :Flash twrp, flash both update zip and hw_data side by side. tks

can't update (rooted)

i am trying to update to b380 ( now 370)
bur every time it fails if got magisk root and twrp 3.1.1-0
i tryed firmware finder but stil fails with twrp
does i do something wrong?? i already tryed with deleting root

bakkertjuh said:
i am trying to update to b380 ( now 370)
bur every time it fails if got magisk root and twrp 3.1.1-0
i tryed firmware finder but stil fails with twrp
does i do something wrong?? i already tryed with deleting root
Click to expand...
Click to collapse
Hello
it's easy to understand.
huawei needs the recovery stock to install.
so, just delete twrp.
To do it just with adb and fastboot, flash recovery.img of your version.
** control / fastboot flash recovery RECOVERY.img
now, download your ota update.
he will install it.
or you can find recovery stock, In the update.app (open with huawei extrator), recover the file you wanted.
here is
huawei extrator https://forum.xda-developers.com/showthread.php?t=2433454

Chisetdel31260 said:
Hello
it's easy to understand.
huawei needs the recovery stock to install.
so, just delete twrp.
To do it just with adb and fastboot, flash recovery.img of your version.
** control / fastboot flash recovery RECOVERY.img
now, download your ota update.
he will install it.
or you can find recovery stock, In the update.app (open with huawei extrator), recover the file you wanted.
here is
huawei extrator https://forum.xda-developers.com/showthread.php?t=2433454
Click to expand...
Click to collapse
Ok I will try this tomorrow and let you know

ive got error failed to check the update files please download the package agian
ive tryed 3 times now still te same
i will try full ota now with firmware finder

bakkertjuh said:
ive got error failed to check the update files please download the package agian
ive tryed 3 times now still te same
i will try full ota now with firmware finder
Click to expand...
Click to collapse
Hello
tell us right away the phone version you have?
it's easier to help you?
ex, I am p9 lite VNS-L31c432b394,
so you are vns-l ?? c ??? B ???.
Maybe there is an easier and faster way to get your phone up.
personally, I have never used FF to install, except to download the firmware.

L31c432b370 but after trying b380 full did get an error after 60% .. i rebooted the phone and i have b380 then i received ota message saying b388 is available so I tried to install that and it worked completely so i don't know why it did not updated from 370 to 380 normally but its ok now thanks for the help

bakkertjuh said:
L31c432b370 but after trying b380 full did get an error after 60% .. i rebooted the phone and i have b380 then i received ota message saying b388 is available so I tried to install that and it worked completely so i don't know why it did not updated from 370 to 380 normally but its ok now thanks for the help
Click to expand...
Click to collapse
have you tested the update with HiSuite?
just connect the phone to the pc, hisuite turns on, and press click on update system.
For me, it works, b160 he offers me b370 and then b380.

Yeah same problems with hisuite then.. I even have tried dload still errors then

bakkertjuh said:
Yeah same problems with hisuite then.. I even have tried dload still errors then
Click to expand...
Click to collapse
I said my last words with you.
I still have a solution.
I will put the firmware vns-l31c432b394 the latest on my google drive.
Like, you could install twrp and the root.
I suppose you knew how to return to MM (c432b160). ok for you.
so,
since, vns-l31c432b160, bootloader code, install twrp for MM, went to wipe, check all except SD card and wipe to wipe. back, back, go to install, install update.zip and install the data full l31.zip.
reboot.
There you go.
problem will be a little longt, it takes time to send it in google-drive.
he tells me 8am so tomorrow I give you the google-drive link.
vns-l31c432b394 full-ota-mf-pv https://drive.google.com/open?id=1UG7Q9HubCRZ2Qo-tQRoEpxikeF9eJBwo