Back from C900 to C150. How? - Huawei P9 Lite Questions & Answers

Hello,
I try to upgrade from c150b123 to c150b160 but obviously I failed. I flash C150, so I dont know where was the problem...
I read that is void my warranty. Is that a true?
What can I do to resolve this problem?
Sorry for my English!

I think you can use Huawei RollBack package using 3 buttons method and then flash c150b160 using the same method.
The rollback package and firmware image can be found on huawei site. Use google.

feldwebel said:
I think you can use Huawei RollBack package using 3 buttons method and then flash c150b160 using the same method.
The rollback package and firmware image can be found on huawei site. Use google.
Click to expand...
Click to collapse
There is just Asia version of Rollback. I need to flash that?

As far as i know the region of the rollback package doesn't matter. I'm on c432 and used this
http://download-c1.huawei.com/download/downloadCenter?downloadId=93800&siteCode=pl
Be careful with the firmware image to be the right one (c150)

feldwebel said:
As far as i know the region of the rollback package doesn't matter. I'm on c432 and used this
http://download-c1.huawei.com/download/downloadCenter?downloadId=93800&siteCode=pl
Be careful with the firmware image to be the right one (c150)
Click to expand...
Click to collapse
Thanks for helping! I didn't mention that I have L31 version. Or I can flash that for L21?

No, don't flash l21. The model matters. Download from huawei website rollback pckage for l31. The model does matter.
Forgot to ask you. You're on stock recovery ?

feldwebel said:
No, don't flash l21. The model matters. Download from huawei website rollback pckage for l31. The model does matter.
Forgot to ask you. You're on stock recovery ?
Click to expand...
Click to collapse
Yes, everything is stock. And b160 is Marshmallow, not Nougat.
b12x has many bugs and I just want to fix them , because my carrier didn't release update from september...

Oh yes sorry my bad. Then you don't need the rollback package. In this case the best option is to use firmware finder to update a full ota via system update.

feldwebel said:
Oh yes sorry my bad. Then you don't need the rollback package. In this case the best option is to use firmware finder to update a full ota via system update.
Click to expand...
Click to collapse
I use firmware finder and got this problem although I check hundred times to use correct upgrade zip. I am scared to repeat update procedure because I don't want to brick my phone... :/
I guess I will have to take a risk.

You have to get the full ota update (with mf and pv in update name).

Related

How can I restore brand firmware without twrp backup ?

Hi
I instaled the lastest firmware VNS-L31C432B161, but now need to revert back due to issues. Is this possible with the stock bootloader?
My Area code is now C900
thanks in advance
Download the rom you like and onstall it with the dload method
If you flash firmware VNS-L31C432B161 you can not return to any previous firmware that works ok...
You must have hope that Huawei launch another update that works ok again...
gtdaniel said:
If you flash firmware VNS-L31C432B161 you can not return to any previous firmware that works ok...
You must have hope that Huawei launch another update that works ok again...
Click to expand...
Click to collapse
So it means once we flash B161 we can't downgrade (even with wipes ?) ?
Yes, it's corect. I realy want to hear from someone that can flash any firmware (less than B161)
after update to B161 (VNS-L21 or 31)...
gtdaniel said:
Yes, it's corect. I realy want to hear from someone that can flash any firmware (less than B161)
after update to B161 (VNS-L21 or 31)...
Click to expand...
Click to collapse
I'd love to try but I won't take any risks
gtdaniel said:
If you flash firmware VNS-L31C432B161 you can not return to any previous firmware that works ok...
You must have hope that Huawei launch another update that works ok again...
Click to expand...
Click to collapse
That is not entirely true, you can install B160, which has the same problem ahah
But yeah, just hope for another firmware update from huawei..
Ok, starting from that 160 is less then 161, you have right...
But when i make update from B130 to B150 device updated ok, at version number is write right, B150 - this is ok.
But when i make update from B130 to B131 or from B150 to B151, version number is not changed at device properties...
Update procedure work ok, device restart, but version not changed...
I am curios in case of B160/B161 if firmware version is change...
What kind of bug do u have?

L31C432 , what roms can i flash?

Hi,
Just recently bought this phone for spare/workphone. I have installed Android 7.0, model number is L31 and fw version is C432B336.
Im not so experienced in Huawei world and i would like know what other rom version can i flash to this phone? Are all okay as long as its for L31? Or should it always be C432 variant?
mele80 said:
Hi,
Just recently bought this phone for spare/workphone. I have installed Android 7.0, model number is L31 and fw version is C432B336.
Im not so experienced in Huawei world and i would like know what other rom version can i flash to this phone? Are all okay as long as its for L31? Or should it always be C432 variant?
Click to expand...
Click to collapse
anything that works on the l31, c432 means it's the european variant
So all L31 variants work? Or is there differences in lte bands lets say like 432 and 185 variants ?
You can flash whatever rom version you want.
As most of us, we've installed vns-l31c185/c636b360(latest version of Nougat) and we don't have bugs or problems.
No matter what oem info it has (oem info is the Variant/region of the phone, like c432 is for Europe, c185 is for mena , c636 asia i guess, correct me if I'm wrong) The version will be compatible with your phone.
I don't know if there is differences between oem info of each region , personally i installed c185b360+ the additional package of c432b328 over c432b161,( i was in mm and went to nougat) and i dont have problems with mobile data.
@simo255
Thanks for the answers. Like i said i currently have rooted L31c432b336 and revolution recovery.
If i want to update b360 should upgrade through dload method or twrp?
mele80 said:
@simo255
Thanks for the answers. Like i said i currently have rooted L31c432b336 and revolution recovery.
If i want to update b360 should upgrade through dload method or twrp?
Click to expand...
Click to collapse
Via twrp you can flash nougat without changing oem info. If you want to update via dload you must have the oeminfo of the rom you want to install.( So if you are on C432 you can t flash C185 Ffirmware via dload because you havr c432 oeminfo) but be carefull..there arr lots of bricked devicea.
RazOne said:
Via twrp you can flash nougat without changing oem info. If you want to update via dload you must have the oeminfo of the rom you want to install.( So if you are on C432 you can t flash C185 Ffirmware via dload because you havr c432 oeminfo) but be carefull..there arr lots of bricked devicea.
Click to expand...
Click to collapse
Sorry to rub it, but I want to be sure because I already had troubles when upgrading to nougat.
But....so in twrp I can just flash the bigger (abt 1.2gb) file and its should work? No need to flash second smaller zip?
I have had Sony devices past 3 year and I have used to flash those
mele80 said:
Sorry to rub it, but I want to be sure because I already had troubles when upgrading to nougat.
But....so in twrp I can just flash the bigger (abt 1.2gb) file and its should work? No need to flash second smaller zip?
I have had Sony devices past 3 year and I have used to flash those
Click to expand...
Click to collapse
I think you should flash those smaller files too
RazOne said:
I think you should flash those smaller files too
Click to expand...
Click to collapse
Ive ashed the second file and it gaves me errors
Like i did , flash the bigger size and the additional package, take a look at my thread : https://forum.xda-developers.com/huawei-p9lite/how-to/nougat-official-firmware-t3512932
I will follow simo225's instructions.
Now I'm beginning to wonder what is the differences between smaller zip and additional zip, because I thought they were the same :laugh:

Unable to update VNS-L31C636B361 to VNS-L31C636B385

First, sorry about my poor english.
I use Firmware Finder to update my P9 Lite VNS-L31 to Android 7 Nougat. All good. Now the same software ask me to update from VNS-L31C636B361 (my current version) to VNS-L31C636B385, but after download files and try to install, an error appear: Authentication failed of installation package.
Please help me to understand why, and how to update my phone to VNS-L31C636B385.
Thanks.
I
ioanmihael said:
First, sorry about my poor english.
I use Firmware Finder to update my P9 Lite VNS-L31 to Android 7 Nougat. All good. Now the same software ask me to update from VNS-L31C636B361 (my current version) to VNS-L31C636B385, but after download files and try to install, an error appear: Authentication failed of installation package.
Please help me to understand why, and how to update my phone to VNS-L31C636B385.
Thanks.
Click to expand...
Click to collapse
I don't recommend you update your device using this app. I updated my device using this app once but the update was unofficial and messed up my phone, and I had to downgrade it back to Marshmallow. I don't recommend it to anyone who wants to update his phone. Just be patient and wait for the Huawei to release the original OTA update.
TopChris said:
I
I don't recommend you update your device using this app. I updated my device using this app once but the update was unofficial and messed up my phone, and I had to downgrade it back to Marshmallow. I don't recommend it to anyone who wants to update his phone. Just be patient and wait for the Huawei to release the original OTA update.
Click to expand...
Click to collapse
I don't receive any update via OTA because i buy this phone on a site. It was new, but is was buy probable of Sri Lanka or China. This is the reason to use Firmware Finder, and update from MM to N works good. My question is: what is the final version of EMUI and Android for my P9 Lite?
Thanks.
ioanmihael said:
I don't receive any update via OTA because i buy this phone on a site. It was new, but is was buy probable of Sri Lanka or China. This is the reason to use Firmware Finder, and update from MM to N works good. My question is: what is the final version of EMUI and Android for my P9 Lite?
Thanks.
Click to expand...
Click to collapse
To check that you have to email Huawei. I can't know because I don't have the proper requirements as Huawei has.
TopChris said:
I
I don't recommend you update your device using this app. I updated my device using this app once but the update was unofficial and messed up my phone, and I had to downgrade it back to Marshmallow. I don't recommend it to anyone who wants to update his phone. Just be patient and wait for the Huawei to release the original OTA update.
Click to expand...
Click to collapse
how you downgrade your phone bro?
bibekkkkkkk said:
how you downgrade your phone bro?
Click to expand...
Click to collapse
I found a tutorial here in xda. I can't remember it. Just search in xda "How to downgrade from Nougat to Marshmallow" without quotes.
Can someone share a download link of firmware VNS-L31C636B506?
Thanks

want to update from NRD90M testkeys (L31)

Title says it all 1. Is there an update to NRD90M and 2 if so where can I find the update (nougat.) Also does the UK fit beta app still install for you guys ok? I keep getting 'this package conflicts with an existing package with the same name' I don't have it installed (used to) and I cannot find a solution anywhere on the net.
First downgrade back to MM with the official Rollback package and MM firmware from the Huawei support website.
After that, use Firmware Finder to upgrade to the Full OTA Nougat firmware B371 and next to B381.
Liebaart said:
First downgrade back to MM with the official Rollback package and MM firmware from the Huawei support website.
After that, use Firmware Finder to upgrade to the Full OTA Nougat firmware B371 and next to B381.
Click to expand...
Click to collapse
Where exactly on their support site do I find the firmware? Because every link posted redirects me to a generic support page or a "not found" and I can't find anywhere to download the file for my phone and region. Thank you in advance.
Liebaart said:
First downgrade back to MM with the official Rollback package and MM firmware from the Huawei support website.
After that, use Firmware Finder to upgrade to the Full OTA Nougat firmware B371 and next to B381.
Click to expand...
Click to collapse
there is no rollback packege for the uk :/ now ive bricked my device trying to dop it another way.

Upgrade to oreo or pie custom ROM NXT-L29C185

Hello I'm an android developer and my mate 8 is on android 7.(NXT-L29C185B560).
I need to write apps for android Oreo or Pie so I need to upgrade Huawie didn't send an update for my phone.So I need to upgrade with custom ROM I need help finding one.
The phone is rooted and has TWRP insalled on it already.I also want the oero or pie custom rom have the ability to be rooted.:good:
Thank You.
Can I trust this tool:
https://ministryofsolutions.com/2016/09/guidehow-to-change-region-of-mate7-mate8.html
And make my phone region to china and then install the latest available update?
you can by using SRK tools to debrand to chinese then update to oreo
Is it safe tool ?
And can I downgrade to nought if I want?
Last . does it format my data ?
Thanks a lot
M.abdo said:
you can by using SRK tools to debrand to chinese then update to oreo
Click to expand...
Click to collapse
Sent from my HUAWEI NXT-L29 using Tapatalk
it's safe i rebranded using it
you can return to naugat but it's unsafe to rebrand from chinese again
it will remove all your internal data as you will downgrade first before rebranding
Many thanks foe u
Do you have a link for mor information about these tool
I would like to know a lot before make these step . I'm so worried
M.abdo said:
it's safe i rebranded using it
you can return to naugat but it's unsafe to rebrand from chinese again
it will remove all your internal data as you will downgrade first before rebranding
Click to expand...
Click to collapse
Sent from my HUAWEI NXT-L29 using Tapatalk
Okay sounds cool I'll rebrand the question remained is what brand has the latest update?(Please provide a link to .zip update) and the last question is,if I rebrand before I install oreo what exactly happens I turn on my phone and it has a frimware from Africa but its brand is now China!Will that be able to turn on?Or I should use TWRP to install Chinese firmware from SD card.
Since I'm an android developer I need to have multiple os if possible.Has anyone tried this Or any better one?Can I use it in this case?
https://forum.xda-developers.com/cr...ualboot-dualbootpatcher-simpler-dual-t3297414
M.abdo said:
it's safe i rebranded using it
you can return to naugat but it's unsafe to rebrand from chinese again
it will remove all your internal data as you will downgrade first before rebranding
Click to expand...
Click to collapse
how did u downgrade from emui 8 to 7 am trying to do this for 5 days
Still waiting for personal experience
Any one try it.
Sent from my HUAWEI NXT-L29 using Tapatalk
Yeah me too.Please guide us the people who have done it.
AZ shabrani said:
how did u downgrade from emui 8 to 7 am trying to do this for 5 days
Click to expand...
Click to collapse
You can using hisuit by searching another firmware
---------- Post added at 04:51 AM ---------- Previous post was at 04:46 AM ----------
stevemoretz said:
Okay sounds cool I'll rebrand the question remained is what brand has the latest update?(Please provide a link to .zip update) and the last question is,if I rebrand before I install oreo what exactly happens I turn on my phone and it has a frimware from Africa but its brand is now China!Will that be able to turn on?Or I should use TWRP to install Chinese firmware from SD card.
Click to expand...
Click to collapse
Any chinese brand TL, AL, DL i'm dual sim so i rebranded to DL version
You need to return first to marchemelo to rebrand to chinese firmware after rebranding your phone will be the same except some extra chinese applications you can uninstall
I used srktools can't find the guid now but you can search for it in youtube ot has a video guide thier
M.abdo said:
You can using hisuit by searching another firmware
---------- Post added at 04:51 AM ---------- Previous post was at 04:46 AM ----------
Any chinese brand TL, AL, DL i'm dual sim so i rebranded to DL version
You need to return first to marchemelo to rebrand to chinese firmware after rebranding your phone will be the same except some extra chinese applications you can uninstall
I used srktools can't find the guid now but you can search for it in youtube ot has a video guide thier
Click to expand...
Click to collapse
So I'll go to marshmelo of my region and then rebrand and then install oero the only question left is in the process of rebranding do I need any network connection or it's offline?I don't have stable network and I'm afraid terrible things happen.
stevemoretz said:
So I'll go to marshmelo of my region and then rebrand and then install oero the only question left is in the process of rebranding do I need any network connection or it's offline?I don't have stable network and I'm afraid terrible things happen.
Click to expand...
Click to collapse
You don't need internet connection while debranding you will only need while updating to oreo
M.abdo said:
You don't need internet connection while debranding you will only need while updating to oreo
Click to expand...
Click to collapse
How can I access huawie server to get marshmellow update.zip.I didn't find any link for L29-C185
So I don't know the exact version B?? for marshmellow.
stevemoretz said:
How can I access huawie server to get marshmellow update.zip.I didn't find any link for L29-C185
So I don't know the exact version B?? for marshmellow.
Click to expand...
Click to collapse
You can try using firmware finder or rollback using hisuit
M.abdo said:
You can try using firmware finder or rollback using hisuit
Click to expand...
Click to collapse
I have the firmware finder it found no FULL OTA from marshmelo the first full ota is for nougat.
http://update.hicloud.com:8180/TDS/...2227/f2/full/hw/eu/update_data_full_hw_eu.zip
The links from hicloud says that the files have been deleted.
I don't have a reliable internet connection I rather download zip files then update because I don't want in the middle of the operation things go wrong that's why I didn't try HiSuite.Any live link would be appreciated.
I found NXT-L29BC185B200 live link right now.It's android 6.0.1 I'll go for it tnx.
M.abdo said:
You can try using firmware finder or rollback using hisuit
Click to expand...
Click to collapse
I download B200 tried to install via dload failed said (incompatiblity with current version ) tried with twrp failed.And I wiped my OS and tried again and failed.And lost my OS.Sort of now it shows me android logo instead of huawie logo and it's stuck on the initial setup of nougat.
https://forum.xda-developers.com/mate-8/general/guide-how-to-downgrade-mate-8-emui-5-to-t3515202
I found this and it says the nougat version must be b500 but mine was b560 and tried to install the rollback and it failed again.I don't know what to do?I need my phone.
Couldn't find any download link of b500 did you do that on your b500 or b560?
If b500 please give me a link of NXT-L29C185B500
Tried again and it didn't give me error this time the point is that it doesn't run on B500 it makes your device B500!
After installing marshmellow the bootloader is locked again!

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