yashsingh1/xdaforums huggingface dataset:
[Huawei P9 Guides, News, & Discussion] mcandre:
Thanks, I can confirm that this method worked for P9 EVA-L09C150B182 (T-Mobile PL), HW/PL, EMUI 4.1, Android 6.
[Huawei P9 Guides, News, & Discussion] lostunsunghero:
What error are you getting? It's likely the recovery didn't flash properly. Once you get back to the stock recovery for emui 5 you should be able to relock without any issue. If you have modified the system files in any way you will NOT be able to relock the bootloader. To relock following modification you will have to reflash the stock ROM again and then relock before you do anything else.
[Huawei P9 Guides, News, & Discussion] Z-Blade:
A yellow message usually means that your bootloader is unlocked. When you try to relock it again via the SRK tool, what was the error message that you got? The other thing it could be is your recovery, you should be able to flash the stock recovery via the SRK tool. If that does not work, download the FULL firmware that you are currently on (L09C432B378?) and also download the Huawei Firmware Extractor. Use the extractor to extract the recovery.img from the UPDATE.APP file and then flash this via fastboot.
[Huawei P9 Guides, News, & Discussion] raniero1:
after following this guide will made android pay not working? debranding and relocking will made android pay not working? after relocking the phone will be like a new stock phone or bootloader or somthing else will have any difference or information about that previous unlocking operation?
[Huawei P9 Guides, News, & Discussion] Z-Blade:
Android pay should work, I say should because I dont use it but have a heaps of confirmed cases that it does work after following the guide.
[Huawei P9 Guides, News, & Discussion] Dre1300:
Hello, still have had no luck with this, call me stupid but if i'm already on C900B136 then it's not necessary to do step 1 correct? Also my boot loader doesn't even seem to lock anymore, it stays UNlocked, this is the only thing i hate about the Huawei P9 is this whole software issue, that's one of the reasons i wanna buy the Huawei P10 and hope i won't have this happen to me again. Any help please, sorry to bug you Z-Blade.
[Huawei P9 Guides, News, & Discussion] Dre1300:
Okay so my problem maybe where after i unlock the bootloader, it's trying to factory reset and then fails. WHy is that!?
[Huawei P9 Guides, News, & Discussion] Dre1300:
After flashing the OEM file, i can't seem to get this damn thing to go into dload, it always goes into erecovery, and yes i am holding down all volume and power buttons at once, what gives!?

---------- Post added at 05:29 AM ---------- Previous post was at 05:10 AM ----------

Weird, whenever i try and do a factory reset, it just takes me to erecovery.
[Huawei P9 Guides, News, & Discussion] Z-Blade:
If you are on C900B136, your next step is to unlock bootloader and install TWRP. After that you need to flash the OEM file and after this, you need to flash the L09C423B136 again (same file from step 1). After flashing again via dload, you should hopefully be on C423B136 instead of C900B136. After you are on the official C432B136, the rest is pretty straight forward.

Dont worry too much about what is mention in Fastboot, as long as you were able to flash the OEM file, just move on to the next step.

Your phone boots up and able to get into EMUI? If so, there is an alternative method to flashing via dload, you need to go into the dialer and punch in * # * # 2 8 4 6 5 7 9 # * # *. This will bring up the system menu, you then need to go to 4. Software Update and then select SDCard Upgrade. You can also do a factory reset from the system menu as well.

Let me know how that goes.
[Huawei P9 Guides, News, & Discussion] Dre1300:
Okay so currently my phone is bootloader unlocked and on C900 still, i want to factory reset this phone but it doesn't do it and it just takes me to erecovery with no option to factory reset, also when i try and flash any firmware it just takes me to erecovery. Is my phone soft bricked? when trying to relock my bootloader via SRK tool,it just gives me an error. If i can get Android nougat on my device finally i may not even buy the Huawei P10, this C900 firmware i'm on now is so screwed up, i cant use android pay and the whole layout looks like KitKat.
[Huawei P9 Guides, News, & Discussion] Z-Blade:
So even if you try to get to manually update via * # * # 2 8 4 6 5 7 9 # * # *, it still goes to erecovery?
[Huawei P9 Guides, News, & Discussion] jayceeable:
Best Guide.. Works 100%, thank u.. :good:
[Huawei P9 Guides, News, & Discussion] Dre1300:
Yup, still goes into erecovery, not sure what has happened, is there something in SRK tool that could help........?
[Huawei P9 Guides, News, & Discussion] Z-Blade:
Hmmm, not sure how you would get into this situation or how its even possible. Unfortunately there isnt anything in SRK tools that may be able to help you. You may have to use something like DC Phoenix to get you back to your original firmware.

Never seen or even heard of anyone with the same issue as you. If you can remember what firmware you were on before, its best you use DC Phoenix. After this, its your choice to try again or just live with 100% stock EMUI.
[Huawei P9 Guides, News, & Discussion] Dre1300:
Yea i'm not sure what has happened but i will try this DC Phoenix you talk about, hopefully it's pretty straight forward, not sure exactly what my firmware was before it changed to C900 but i know for a fact that i was on C432 before.

---------- Post added at 02:03 AM ---------- Previous post was at 01:38 AM ----------

What if i use the Rollback package for L09? would that work.

---------- Post added at 02:35 AM ---------- Previous post was at 02:03 AM ----------

Could you provide me with a link to DC Phenoix

---------- Post added at 03:00 AM ---------- Previous post was at 02:35 AM ----------

Well, i have downloaded DC Phoenix, hopefully its legit, but now it's asking for a username and password, smh......
[Huawei P9 Guides, News, & Discussion] Z-Blade:
Hang on, if you were on C432 before, how the hell did you get to C900? The only way for you to go from C432 to C900 is if you flash a different OEM.

Anyway, with DC Phoenx, you need to pay for it so that is why its asking for username and password. I recall there is a guide on this forum on how to use DC Phoenix, I suggest you find it and read through it.

Also, dont keep quoting in the same post, its just adds unwanted junk.
[Huawei P9 Guides, News, & Discussion] Dre1300:
Ah, man this really sucks, when i got this Huawei P9 i only have received one OTA update, nothing big maybe a bug fix update and that was it. I don't know what i flashed to get C900 but it was a big mistake, might as well just sell this thing on Ebay after i get either the Huawei P10 Plus or LG G6. Wish there was another way, it still wont allow me to factory reset the device, what if i flashed a certain firmware, would that do something..... i really can't just flash a C432 firmware and expect it to go back can i.?
[Huawei P9 Guides, News, & Discussion] fpippo1999:
Point 6:

Why do I have to install B361 via Huawei Updater 2 when i am on B182? I don't receive ota anymore with this guide?
[Huawei P9 Guides, News, & Discussion] fpippo1999:
HELP GUYS. i installed B361 with the method in the guide but something gone wrong because i had NRD90M test-keys version. so i roll back to MM with the official update and now i'm on B182 on a corrupted firmware https://www.youtube.com/watch?v=h_zQxu4yNSw&feature=youtu.be. what i have to do to update correctly to nougat latest version (B378?!) thanks
[Huawei P9 Guides, News, & Discussion] darrr1:
Try wipe system data,cache and update to b136 ,next wipe system data cache and upload to 182 and then finaly to b378. Every time use download mode .

Wysłane z mojego EVA-L09 przy użyciu Tapatalka
[Huawei P9 Guides, News, & Discussion] fpippo1999:
thanks so much
[Huawei P9 Guides, News, & Discussion] Z-Blade:
You wont be able to flash any firmware because you told us that you cant get into dload and the only thing you can get into is erecovery.

In all honesty, not sure what you have done but I do know you didnt follow this guide. You said you were on C432 and the only way you could of gotten to C900 is if you either flashed a firmware that isnt C432 or you flashed a different OEM file which is not possible if you follow this guide.

The only options I see is for you to use DC Phoenix that apparently uses some form of exploit to flash any firmware you like.
[Huawei P9 Guides, News, & Discussion] Dre1300:
Yea, i can't flash anything currently, is there anyway i can try DC P for free?
[Huawei P9 Guides, News, & Discussion] Z-Blade:
No idea if there is a free trial or an alternative way. I don't know too much about it to be honest.
[Huawei P9 Guides, News, & Discussion] edmun:
It works, because the only thing you are doing here is:

a) flashing phone to old (base) software (B136) on which you can unlock bootloader, install TWRP and add different oem info

b) once on B136, bootloader is unlocked and you have access to flash recovery partition

c) you do flash TWRP into recovery partition in order to install different oem info

d) than you install OEM and once on different oem info, you are flashing again the "base" software to lock the bootloader again.

After those steps, your phone in on the base software (136), with changed oem info and with locked bootloader

Then you can "update" by Huwaei as you would have a stock phone by original "update" on the phone. This goes to B182 or B166. B182 is the desired one. B166 happens a lot. If this would happen, follow the guide and download B182 manually and update as per guide.

I have just done it yesterday and Android Pay works fine. I have restored apps, contacts, phone log etc from the backup taken by Huwaei Backup. I would advise to not backup Google Play Music as it does backup a lot of GB of temp data (buffered songs) unless you would clean this apps data before taking the backup. I simply forgot. Clean re-install of Google Play Music is something more advisable if you do only use it to listen songs from an online library. Android Pay was asking to "re-authorise" credit card which means that I had to confirm it's security code in the Android Pay app and accept terms and conditions again.

P.S. I haven't actually "finish" the guide because I haven't upgraded myself to Nougat 7.0. I am still on Android 6 with EMUI 4.1 because I don't know if I want to go with the custom ROM of beta version. So my phone is still on EVA-L09C432B182. Don't know how much is it worth to go to the custom beta of Android 7.0 for P9.

I used to use Android 7.0 on Nexus 5, so I don't know if it's not better just to wait for official rollout to Android 7 once Huawei would release it.
[Huawei P9 Guides, News, & Discussion] tmohammad:
Annoyingly, my phone is still on EVA-L09C432B182 too.

So is my phone an unbranded phone or O2 branded?

Huawei UK in a chat told me that Unbranded P9s had their Nougat update released a while back in the UK. Apparently as my phone came from O2, they are supposed to release it (or at least authorise HUAWEI to release it)!

Makes no sense to me.
[Huawei P9 Guides, News, & Discussion] edmun:
The debranding guide goes to EVA-L09C432B182 and if you would like to install beta Nougat 7.0, than you do the last steps.

As mentioned. I don't know anything about the official Nougat update for unbranded phones. I am checking this now as I can see that some Polish people received an official update through HiCare but it was a limited access so I guess it was also a beta. So I am slowly digging through internet to see what is the current status as I am also in UK (I am with "Three" and had their branded software)

---------- Post added at 03:19 PM ---------- Previous post was at 02:29 PM ----------

Update: Well.. I am after a chat with Huawei customer service.

Interesting enough - they are quite clever about what they are doing.

So.. If you would purchase phone directly from Huawei, than you will be the customer/buyer and Huwaei can obligate to provide you the update, however when you do take a phone with a carrier like o2, vodafone, Three, etc - you are not the buyer of Huawei, so you don't have the buyer rights, as you are the client of the carrier.

Huawei of course is still obligated to provide updates, but to the carrier, not to the carriers customers.

So on the chat, even before I was trying to prove that it is unfair, I was straightly told that my warranty is voided, because I have unlocked the bootloader. This is of course ridiculous, because when user is unlocking the bootloader it does warn that the warranty may be voided, not that it WILL.

There is a difference here. So at the end I have pointed out, that carrier doesn't care about the users and does not provide updates - so that's why the phone was reinstalled with official software from http://download-c.huawei.com to receive official updates directly from Huawei..

Well - guy on the chat said that website http://download-c.huawei.com is not Huawei website....

After this - I had enough - I will probably escalate it higher as I won't be talking to an idiot on the chat which doesn't even recognize that huawei.com is official domain of Huawei... :/

If this won't help - I think I will be looking how to sue Huawei, because there can't be a situation, where user of P9 is on branded software from carrier, and carrier is receiving updates from Huawei, but doesn't care to provide updates to their customers and when the user is willing to update his phone to a newer software even for security updates, he is being punished by Huawei because he has unlocked bootloader to update his software.
[Huawei P9 Guides, News, & Discussion] Z-Blade:
Just something I want to correct you on. The firmware B361 is the official EMUI 5.0, its not a beta. B361 is the firmware that Huawei pushed out to its customers (both consumer and carrier). Step 6 is a way to force the update instead of waiting on Huawei to push it out. After you are on B361, you will get the update for B378 via OTA.
[Huawei P9 Guides, News, & Discussion] rapajic.st:
I stuck with c900 and try to unbrand my p9 but I cant get booloader unlock code.

why I ends with error when I try to unlock my p9 bootloader :

Please make sure the verification code and model number are correct. If your device has multiple IMEIs or MEIDs, please try another IMEI or MEID.

I try with multiple accounts, always end with that

helpppp
[Huawei P9 Guides, News, & Discussion] edmun:
Thank you for correcting. To be honest, I wasn't checking the news for couple of months so last time I was looking into the threads on xda was long time ago, that is the main reason of my mistake. I do apologise. I will install the official update tomorrow and I am planning to write an official letter to Huawei as I am not accepting their approach to the updates when someone buys a phone from a carrier (and most of the carriers don't provide updates to branded softwares anyway)
[Huawei P9 Guides, News, & Discussion] Z-Blade:
You can try following the guide below on how to get the information to fill out each area of the Unlock Bootloader form.

https://www.gizdev.com/unlock-bootloader-of-huawei/

No need to apologies, just wanted to let you know that its no longer in beta. In regards to sending that letter to Huawei, unfortunately this is a general practices for a lot of the phone manufacturers. The main reason is Huawei can not guarantee that will work perfectly fine for all carriers so they usually send the firmware to the carrier to allow them to run tests. However, this pretty much contradicts the fact that Huawei pushes update directly to the phone if you purchased it directly through Huawei. Its stupid, I know but lots of manufactures does it this way.
[Huawei P9 Guides, News, & Discussion] wards5150:
Hi do you remember the build you were on before you updated.
[Huawei P9 Guides, News, & Discussion] edmun:
I prefer to apologise as I could create a possible confusion. It is just because the link in this thread from the guide is pointing to the post where the answering person is quoting the question about the beta. That was the main reason of my confusion that links provided in the answer, are for the beta Android 7 where they are not.

I have just done the update. All ok - ended up so far on EVA-L09C432B378 - don't see any further system updates which looks as it should be.
[Huawei P9 Guides, News, & Discussion] rapajic.st:
Finnaly i have done change from c900 to c432

With small problems and many restarts i come step ba step to 378

Do i need wipe cache when update is over?
[Huawei P9 Guides, News, & Discussion] jcalderonv74:
Always recommended... Even a factory reset ... When upgrading from MM to N

Enviado desde mi EVA-L09 mediante Tapatalk
[Huawei P9 Guides, News, & Discussion] Z-Blade:
Awesome, good to see you got there without any issues.

You dont have to but its highly recommended that you do a full wipe once you are done, just to make sure no weird battery drain bugs carry over.
[Huawei P9 Guides, News, & Discussion] sumit227:
Can anyone plz tell me Whats the difference of FullOTA-MF and FullOTA-MF-PV?
[Huawei P9 Guides, News, & Discussion] fpippo1999:
Don't use beta app of firmware Finder. Roll back to official, it's confusing the latest beta
[Huawei P9 Guides, News, & Discussion] ifenoy:
Hi, I am in L09C900B135 and a want to update to android 7. Did you have any complications with this method? Thanks a lot
[Huawei P9 Guides, News, & Discussion] Z-Blade:
I am assuming that PV stands for Preview a.k.a beta, but I am only making a assumption.
[Huawei P9 Guides, News, & Discussion] Petrux25:
Hi I have an EVA-L09C106B160 it is from a carrier in my country named Kolbi, unfortunately they don't update the phone since Android MM, EMUI 4.1.2.

Does this guide can help me to debrand my phone and install Android N?

Thank you!
[Huawei P9 Guides, News, & Discussion] Z-Blade:
Yes, this guide will debrand any L09 P9 to a C432. To save yourself from any mistakes, I highly recommend that you read the whole guide first before you make a start. Its a real pain in the ass if you end up missing a step and throws the whole thing out of wack.
[Huawei P9 Guides, News, & Discussion] play541:
Hello All,

Firstly I like say big thanks to Z-Blade for taking time to write this comprehensive guide, and also big thanks to other member's contribution to make this happens.

I finally gone thru every steps and got the latest ROM/firmware successfully as suggested, super happy! no more waiting hopelessly from carrier (Telstra) update.

Only one little hiccup (panic) though at step no 3, flashing thru TWRP, I did powering up phone while holding volume up, but always got me into EMUI recovery (no TWRP), don't know why? wonder what's wrong? tried few times same result, I ended up boot into recovery thru SRK tool.

other than that all smooth sailing till the last step.

One question here: I presume my phone is not rooted? if I root it would I still get future OTA update?

Thank you all!
[Huawei P9 Guides, News, & Discussion] edmun:
I also had similar issues where I have installed twrp by fastboot by myself. It didn't work. Used the SRK and worked only once. If I do remember correctly, there is some solution similar to: do not reboot into system after flashing TWRP into recovery but after flashing just go straight to TWRP or the other way around. I think same was happening on Nexus where custom recovery partition was overwritten by the original one if did not boot into recovery straight after flashing.

Someone would have to confirm this as I don't remember very well.

In regards to root - after flashing system through dload it will lock bootloader and unroot the system if it was rooted
[Huawei P9 Guides, News, & Discussion] DriesCrius:
Thank you very much! These steps worked for me. I was on another build c900b300 and now b182 is installing OTA :D For me I had to use twrp-3.0.2-0-eva.img because the most recent is optimized for Nougat and didn't worked. I used adb and powershell.

So again thank you for the detailed tutorial!

Regards

Gabor

---------- Post added at 01:23 PM ---------- Previous post was at 01:18 PM ----------

It happened me as well. My solution was to use Adb in Powershell and use: adb devices (to load the adb daemon and make sure the phone is connected)

adb reboot recovery (to fire up twrp)

You have to have usb debugging enabled.

I hope it helps
[Huawei P9 Guides, News, & Discussion] wards5150:
Hi. Does OEM unlock option need to be off in developer options before staring this process?
[Huawei P9 Guides, News, & Discussion] Sam4210:
Is it fine if I flash b182 instead of b136 or do I have to flash b136 in order for this to work?

Please​ reply, it will be very helpful.

Thank you :)
[Huawei P9 Guides, News, & Discussion] iPayton:
THANK YOU!

DUDE! THANK YOU SO MUCH! I have been unable to use android pay for weeks and weeks after a failed attempt to previously update. I am now on an unbranded nougat P9 with the latest version... and everything works.

I CANNOT THANK YOU ENOUGH! Thank you!

:D :D :D :D :D :D :D :D :D :fingers-crossed: :laugh:
[Huawei P9 Guides, News, & Discussion] Sam4210:
What version of emui were you on before you changed to c432?
[Huawei P9 Guides, News, & Discussion] Sam4210:
When I flashed the b136 file it said that my sim card was locked (BTW this was step 1). I don't know if this has happened to any of you guys. But please can someone help me with this, i will be very appreciated.

Edit: Never mind, I fixed it by doing a factory reset
[Huawei P9 Guides, News, & Discussion] yudhi.pippo:
hay gays... please help me.. I need oem info for cust 636.. any body can upload here?
[Huawei P9 Guides, News, & Discussion] avivp:
can i try this guide on EVA-L19 phone?

im stuck on c900 on my device with wrong icons and no theme working etc
[Huawei P9 Guides, News, & Discussion] Z-Blade:
If you can get yourself onto a C432B182, by all means go for it. You will still need to flash the OEM files for C432 if you get something like a C900B182. From there, you just need to follow the steps to force flash EMUI5.0 via Huawei Updater.

Yes, you can follow this guide to debrand a L19 to a L09. However, even though there has been a number of reports in this thread, if you flash a L09 firmware onto a L19 dual sim still works. However, I dont have a L19 so I can't clarify and there is only a 2-3 L19 users that has reported that dual sim works.

So all I can say, is do a nanbackup and follow this guide at your own own risk. If you dont care about dual sim then the only function that wont work for you is NFC (since L19 has no NFC capability)
[Huawei P9 Guides, News, & Discussion] avivp:
Im glad to inform that this guide worked for my eva-l19 and now im running l09 with eva-l09c432b182 build and can get OTA updates.

My question is if should i need to install b378 via ota or i need to use updater 2.0? Does it matter?
[Huawei P9 Guides, News, & Discussion] Sam4210:
If I change to c432, will it fix the problem where the theme is not working?
[Huawei P9 Guides, News, & Discussion] Z-Blade:
If you flash the B361 via the updater 2.0, you will get the B378 via OTA shortly after checking the Updater in the Settings menu on the P9. You need to be on B361 before you can jump onto B378.

It should fix it, this whole guide will do a complete wipe of everything on the P9 and unbrand it. So at the end of it, it should be in the 'just out of the box' state with everything working.
[Huawei P9 Guides, News, & Discussion] Sam4210:
Alright, thank you very much for the reply
[Huawei P9 Guides, News, & Discussion] Sam4210:
Yes it worked!!! I'm now on c432 and the theme is working perfectly. Thank you very much for this helpful guide [MENTION=4465983]Z-Blade[/MENTION] :):good:
[Huawei P9 Guides, News, & Discussion] benjamen50:
I gave up on waiting and ended up updating to Android Nougat using your suggested method.
[Huawei P9 Guides, News, & Discussion] wards5150:
Ok. I finally had a bit of free time and downloaded everything ready to update. Just needed my unlock bootloader code. Can not log in with my Huawei ID. Keep getting this error. Anyone else have this problem?