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Hi all,
I'm a complete newbie here so would appreciate any kind responses being kept suitably simple. I've just bought (early January) a P9 in the UK, sim free, unbranded running EVA-L09C432B166. Its last security update is July 2016.
I came to this phone as a warranty replacement for a Nexus 6P boot-looped by the December Andriod 7.1.1 update on the basis it would get Android 7.0 soon. However, there is no sign of this via the updater or the new HiCare app. I've tried installing full versions of B182 (though I might need this as a step to Nougat), B360 and B361 from Firmware Finder using the dload method (volume up/power button and dialler method) but they all fail at around 37-40%. Does anyone have any ideas whether the B166 version will ever get an OTA update to Andriod 7.0 (Huawei reply with the same general statements about it being rolled out in batches) or can advise what I am doing wrong when trying to update manually?
Thanks in advance!!
Allcoolsteve said:
Hi all,
I'm a complete newbie here so would appreciate any kind responses being kept suitably simple. I've just bought (early January) a P9 in the UK, sim free, unbranded running EVA-L09C432B166. Its last security update is July 2016.
I came to this phone as a warranty replacement for a Nexus 6P boot-looped by the December Andriod 7.1.1 update on the basis it would get Android 7.0 soon. However, there is no sign of this via the updater or the new HiCare app. I've tried installing full versions of B182 (though I might need this as a step to Nougat), B360 and B361 from Firmware Finder using the dload method (volume up/power button and dialler method) but they all fail at around 37-40%. Does anyone have any ideas whether the B166 version will ever get an OTA update to Andriod 7.0 (Huawei reply with the same general statements about it being rolled out in batches) or can advise what I am doing wrong when trying to update manually?
Thanks in advance!!
Click to expand...
Click to collapse
Try installing B182 MM and than procede to these steps. This is how I managed to go from b182 to b361 (than I got an OTA update to B387 ):
Update to Nougat B360/B361 using Huawei Updater
Only works on B182 or B360
- Only works CUST 432
- Only works EVA-L09 Single SIM
- Only works Unrooted devices and locked bootloader
C432B360
Custom ROM Version: EVA-L09C432B360
Custom ROM URL: http://update.hicloud.com:8180/TDS/data/files/p3/s15/G753/g104/v71496/f1/
C432B361
Custom ROM Version: EVA-L09C432B361
Custom ROM URL: http://update.hicloud.com:8180/TDS/data/files/p3/s15/G753/g104/v73574/f1/
1. Install Huawei HiSuite
2. Download Huawei Updater 2.0
3. Connect phone to PC, open HiSuite y established connection Hisuite <--> Phone (minimize HiSuite window)
--> Not connect?, touch "Settings - Advanced Settings -> Security" and enable "Allow HiSuite HDB"
4. Run Huawei Updater, chek the box "Custom ROM" and "Custom Port"
5. In box "Custom ROM Version" enter correct ROM version for flashing (example: EVA-L09C432B361)
6. In box "Custom ROM URL" enter correct ROM URL version for flashing (example: http://update.hicloud.com:8180/TDS/data/files/p3/s15/G753/g104/v73574/f1/)
7. Click on "Start" button and accept waiting alert messages
8. Maximize HiSuite windows, touch on "Settings" --> "General" --> Custom Proxy and configure using:
Address: 127.0.0.1
Port: 41279
9. Back to main HiSuite windows and click on "System update"
10. Press "Update" and wait download firmware. This smartphone reboot and start upgrade!
Thanks very much, but...
Hi, thanks very much for your response. Unfortunately I appear to have two problems with it.
Firstly I have been unable to update to B182, it does not appear in Hi Suite or Updater and I have not been able to update via dload as the update fails.
Secondly, I run a Mac not Windows machine so no Hi Suite for me I understand.
Im afraid you will have to use a windows machine. Following these steps you will have zero problems. I was also on B182 and all went smooth without a single problem.
edit: sorry,, I read "I have been able to update to b182". which version are you using right now?? what methods have you used to get to b182? and lastly what errors have you encountered?
I'm on B166. No update shows in update or HiCare. I have tried updating to B182 using firmware finder using. dload. I have tried using both power/volume up buttons and the dialler method with dload in both internal memory and on SD card. All methods fail at around 37-40%..
I am not an expert at all so any advice would be great, thanks.
Allcoolsteve said:
I'm on B166. No update shows in update or HiCare. I have tried updating to B182 using firmware finder using. dload. I have tried using both power/volume up buttons and the dialler method with dload in both internal memory and on SD card. All methods fail at around 37-40%..
I am not an expert at all so any advice would be great, thanks.
Click to expand...
Click to collapse
I'm resurrecting this thread as am in exactly the same boat Steve. Did you ever figure this out?
Contacting Huawei customer services, they were cagey saying the update would be rolled out in batches then when I gave my IMEI number to find out, they became very cagey refusing to confirm or deny it would be updated at all..
Considering returning my new (cheap deal) P9 if it cant/won't be updated to N and EMUI 5.0...
S
After lots of 'pushing' by Twitter message. Huawei confirmed update process commenced in Q1 of 2017 but they would not commit to whether it would end within that period. They confirmed that my P( would be updated and that if it wasn't updated by the end of the process they would push it manually to my IMEI. SO ti does appear I will get it - eventually.
Just a little bit to add to the mix, I sent my imei to Huawei today only to be told that I'd bought the phone from carphone warehouse and the firmware id's slightly different and won't be updated until May, they wouldn't say what the difference is as my phone is still an open market version! Frustrated is an understatement I thought I was getting a unlocked phone!!! Think I'll be sticking to a Google phone in the future, at least you know where you stand!
Someone help me! Please!
Why I can't flash anything with dload method? I have tried lots of things: stock recovery, twrp, erecovery, proxy. But nothing. I tried to use firmware finder too for download an update fullota (of course, all the 3 ZIP package) and tried to put in dload the zips, the update.apps, but won't work. For dload I mean the three buttons method. It gives me always failed, at 5%, with the error "Software Install Failed". Please help me! I tried to toggle signature too to the firmware with huawei firmware extractor but not working. How I can flash firmware (especially firmware founded with firmware finder) using dload method? Please help me and my friends! Thank you to everyone!
These beta build found by firmware Finder might be not enable to be installed on your device. Use the latest check with EMEI to know if it fits.
Gazatus said:
These beta build found by firmware Finder might be not enable to be installed on your device. Use the latest check with EMEI to know if it fits.
Click to expand...
Click to collapse
I'm sorry didn't get the last part. Can you clarify it please ?
I'm on the same boat as the op. With the firmware finder I can only find PRA-LX1C33B130 but like op said, it stops at 5%. The firmware for my phone is PRA-LX1C33B120, but I can't find it anywhere. Right now my phone is bricked because I really can't find any version to install it.
Update firmware Finder, select the update you want and hit "check......" then it will now ask you for IMEI compatibility check
For me, Ive found more than 10 firmwares, I'm on B110 and there is up to b125... Nevertheless I can't install the proxy add-on, I can't use their "register with dns" feature, and I can't past the 5% threshold on dload flash. It seems to be not working at all for pra-lx1. I'm on stock B110 update (phone came with b100 and the B110 update was a legal ota without any mods).
Did you try to send a mail to huawei support team? Explain that you are a dev and you need to stock rom. They may send you a link share it please!
Gazatus said:
Update firmware Finder, select the update you want and hit "check......" then it will now ask you for IMEI compatibility check
For me, Ive found more than 10 firmwares, I'm on B110 and there is up to b125... Nevertheless I can't install the proxy add-on, I can't use their "register with dns" feature, and I can't past the 5% threshold on dload flash. It seems to be not working at all for pra-lx1. I'm on stock B110 update (phone came with b100 and the B110 update was a legal ota without any mods).
Did you try to send a mail to huawei support team? Explain that you are a dev and you need to stock rom. They may send you a link share it please!
Click to expand...
Click to collapse
That option is on android right ? I can't use it, so I was trying with the windows version but it doesn't have any option for checking the firmware (or at least i'm not finding it). ~
Well after you said that there is a option to check the firmware the only one that I found (PRA-LX1C33B130) when I checked the firmware it said that It was not approved to install. I guess that is why it stops at 5% ? maybe ? hopefully the firmware status goes to approved somewhere in the neaaarr future.
squallx85 said:
That option is on android right ? I can't use it, so I was trying with the windows version but it doesn't have any option for checking the firmware (or at least i'm not finding it). ~
Well after you said that there is a option to check the firmware the only one that I found (PRA-LX1C33B130) when I checked the firmware it said that It was not approved to install. I guess that is why it stops at 5% ? maybe ? hopefully the firmware status goes to approved somewhere in the neaaarr future.
Click to expand...
Click to collapse
I get software Install Failed at 5% using dload ALWAYS! Even with authorized/allowed firmware. I'm thinking that dload on Huawei p8 lite 2017 is not working at all.
Hello, I have an EVA-L09C25B136 that's on EMUI 4.1 and Android 6.0. When I check for updates there are not any updates.
The phone is from a latin american carrier "Claro DR" and I haven't done anything to the phone, so it is pure stock. Is there any way I can update this phone to the latest available version for this model?
I have searched the forums but the guides are not directly related to my exact build so I want to be sure before I go and damage it.
Thank you.
FirmwareFinder. It can download every available build from Huaweis server..
https://play.google.com/store/apps/details?id=com.teammt.gmanrainy.huaweifirmwarefinder&hl=en
How do I know which firmware is compatible with my device?
When I get the list and check every one of the options available, none of those say that they are for my build number.
Don't know what you did.
Open FirmwareFinder, normally it'll recognize your build. In your case EVA-L09C25. If not set the model manually.
Then tap the refresh button and the app will show all builds.
Tap on the first one (EVA-L09C25B320) and ckeck firmware access.
A pop-up will appear with following text: "Firmware approved for installation Models ... . So, there's your latest build (with Nougat, EMUI 5).
For further information about FirmwareFinder and how to use it please check the forum or ask google.
Here is what I did:
In firmware finder indeed it recognized my phone as EVA-L09C25.
1) Click the refresh button.
2) First two firmwares said not approved for installation.
3) 3rd on the list: Firmware aproved for installation Models for Installation: VIE-L09C25B320. Shouldn't be EVA-L09?
4) Tried downloading with firmware finder proxy, download stops at 74%, and closes updater.
5) Tried downloading the zip file and extracting the UPDATE.APP and copied it to the root of the SD Card in the dload folder.
6) Started the update on reboot it says that the firmware is not compatible.
What else should I try?
Well, I've seen what you mean. Very strange. I can only assume that it's caused by C25. It's not even listed in the cust list here https://www.huaweiblog.de/firmware-update-was-bedeutet-cust-emui-und-co/ (german).
Sorry, that I don't know more.
I have been using firmware finder to update my PRA-LX1. Now as I can see I don't receive any official updares. I'm stuck at security patch June. Even though July update is available when I check for updates in System Update it sais 'No updates'.
Any solutions?
FullOfMysteries said:
I have been using firmware finder to update my PRA-LX1. Now as I can see I don't receive any official updares. I'm stuck at security patch June. Even though July update is available when I check for updates in System Update it sais 'No updates'.
Any solutions?
Click to expand...
Click to collapse
I guess you are on Oreo.
Go to the firmware finder and find the list of firmwares and which correspond to the July security update,and check if it is approved for installation,if it is then go ahead and press update through VPN and follow the instructions.
Choose OTA not FullOTA if you are on Oreo,since it also took me a while to get the update.
dinoderda said:
I guess you are on Oreo.
Go to the firmware finder and find the list of firmwares and which correspond to the July security update,and check if it is approved for installation,if it is then go ahead and press update through VPN and follow the instructions.
Choose OTA not FullOTA if you are on Oreo,since it also took me a while to get the update.
Click to expand...
Click to collapse
so you're saying that firmware finder works on oreo if I choose the OTA firmware?
the problem is that firmware finder doent seem to work on oreo. Even though the update is approved, with vpn started the System Update app says 'No updates'.
FullOfMysteries said:
so you're saying that firmware finder works on oreo if I choose the OTA firmware?
the problem is that firmware finder doent seem to work on oreo. Even though the update is approved, with vpn started the System Update app says 'No updates'.
Click to expand...
Click to collapse
Oh really? I haven't really tried it on Oreo so I don't know,try updating it the manual way through dload,you can find how to do this on the forums.
dinoderda said:
I guess you are on Oreo.
Go to the fi mairmware finder and find the list of firmwares and which correspond to the July security update,and check if it is approved for installation,if it is then go ahead and press update through VPN and follow the instructions.
Choose OTA not FullOTA if you are on Oreo,since it also took me a while to get the update.
Click to expand...
Click to collapse
dinoderda said:
Oh really? I haven't really tried it on Oreo so I don't know,try updating it the manual way through dload,you can find how to do this on the forums.
Click to expand...
Click to collapse
I have tried different types of the Dload method but no one ses to work. I tried something from the WAS-LX1 SD CARD UPDATE GUIDELINE but using an update for this phone. Well, even if that update is available for update, with the dload method it says that 'The update package is not compatible with the current version. Please download the right package and try again." And I have tried that with about 10 other updates witch were available in firmware finder.. but I got the same results.
It seems that no method of updating is working for me right now... Or maybe I am doing the dload method wrongly.
I can't find specific stept for the dload method on the forums. On some of them is even said that dload method doesn't work on this phone all together.
FullOfMysteries said:
I can't find specific stept for the dload method on the forums. On some of them is even said that dload method doesn't work on this phone all together.
Click to expand...
Click to collapse
Hmm,well as a last resort try to use dload with a service firmware.
I am sending you links for PRA-L31,the one I have,and you can check if you have that one by going into the engineering menu,and you do that by going into the dialer and typing this: *#*#2846579#*#*,and then going to Veneer Informations and Version Info.
http://androidhost.ru/6uc - this is for the July security patch firmware (aka the newest one),but it will take 8 hours to download,at least it took that time for me
https://mega.nz/#F!nwhAWDjC!cNovAN6dKLlO_YZ9fjMbzQ - this is for the firmware you are probably running right now
All of these links are from 4PDA forums.
https://4pda.ru/forum/index.php?showtopic=809771&view=findpost&p=65929494 - here you can find instructions on how to do it,if you don't understand them basically you need to firstly apply the UPDATE.APP from the first update_sd.zip you find in the dload folder,and then do the vendor UPDATE.APP which you can find in the PRA-L31 folder.
I am sorry if you cannot completely understand what am I saying,I am typing this in a bit of a rush so...
dinoderda said:
Hmm,well as a last resort try to use dload with a service firmware.
I am sending you links for PRA-L31,the one I have,and you can check if you have that one by going into the engineering menu,and you do that by going into the dialer and typing this: *#*#2846579#*#*,and then going to Veneer Informations and Version Info.
http://androidhost.ru/6uc - this is for the July security patch firmware (aka the newest one),but it will take 8 hours to download,at least it took that time for me
https://mega.nz/#F!nwhAWDjC!cNovAN6dKLlO_YZ9fjMbzQ - this is for the firmware you are probably running right now
All of these links are from 4PDA forums.
https://4pda.ru/forum/index.php?showtopic=809771&view=findpost&p=65929494 - here you can find instructions on how to do it,if you don't understand them basically you need to firstly apply the UPDATE.APP from the first update_sd.zip you find in the dload folder,and then do the vendor UPDATE.APP which you can find in the PRA-L31 folder.
I am sorry if you cannot completely understand what am I saying,I am typing this in a bit of a rush so...
Click to expand...
Click to collapse
THANK YOU SO MUCH! This actually helped me restore my phone to normal. I installed the B363 version from the MEGA link ( I had B360 installed. my mistake was that I initially installed the wrong version with firmware finder, B360 instead of B363). But once I installed the B360 I got a notification to update to B369.
Thank you for your help!
dinoderda said:
Hmm,well as a last resort try to use dload with a service firmware.
I am sending you links for PRA-L31,the one I have,and you can check if you have that one by going into the engineering menu,and you do that by going into the dialer and typing this: *#*#2846579#*#*,and then going to Veneer Informations and Version Info.
http://androidhost.ru/6uc - this is for the July security patch firmware (aka the newest one),but it will take 8 hours to download,at least it took that time for me
https://mega.nz/#F!nwhAWDjC!cNovAN6dKLlO_YZ9fjMbzQ - this is for the firmware you are probably running right now
All of these links are from 4PDA forums.
https://4pda.ru/forum/index.php?showtopic=809771&view=findpost&p=65929494 - here you can find instructions on how to do it,if you don't understand them basically you need to firstly apply the UPDATE.APP from the first update_sd.zip you find in the dload folder,and then do the vendor UPDATE.APP which you can find in the PRA-L31 folder.
I am sorry if you cannot completely understand what am I saying,I am typing this in a bit of a rush so...
Click to expand...
Click to collapse
Thank you for this simple and useful guide. :good:
I was able to successfully update back to stock using Normal upgrade *#*#2846579#*#* dload method (not force with 3 buttons) and service firmware 8.0.0.363(C432). After that, got OTA for 8.0.0.369.. Everything went fine, except device name changed automatically to P9 lite 2017
Is this okay?? The same happens with service firmware you mentioned 8.0.0.369(C432)...
Beside that, Power+Vol+ gives me no more eRecovery, just EMUI with options to wipe data or reboot..
My device: P8 lite 2017 PRA-LX1 (PRA-L31)
Almironi said:
Thank you for this simple and useful guide. :good:
I was able to successfully update back to stock using Normal upgrade *#*#2846579#*#* dload method (not force with 3 buttons) and service firmware 8.0.0.363(C432). After that, got OTA for 8.0.0.369.. Everything went fine, except device name changed automatically to P9 lite 2017
Is this okay?? The same happens with service firmware you mentioned 8.0.0.369(C432)...
Beside that, Power+Vol+ gives me no more eRecovery, just EMUI with options to wipe data or reboot..
My device: P8 lite 2017 PRA-LX1 (PRA-L31)
Click to expand...
Click to collapse
Yeah that is good,since this is a firmware which was released around Croatia,Albania,Czech Republic and etc,but there it is called P9 Lite 2017 instead of P8 Lite 2017 so it is no problem.
And I believe you enter eRecovery by holding Volume Up while plugging in your phone to a charger or USB port on a computer,at least that is how I did it before on Nougat,haven't touched any recoveries I fixed my phone with DC Phoenix.
When I was trying to downgrade the old phone of my GF (single SIM, FIG-LX1 or P SMART 1st gen) all of the tutorials didnt work for me at all.
The one with Huawei Firmware Finder via Google Play was tedious altough i know how to change DNS, use eRecovery and all that jazz didnt work at all and the phone would throw me fit after fit.
Then I was reading too use older versions of HiSute and again change DNS and i gave up cause all ended up not working and thats how I figured out a way myself.
I will not be responsible if you lose any of your data doing this since it will wipe the phone completly
You will need:
- The phone ofc - make sure its charged all the way
- USB cable
- SD Card minimum 8GB
- Huawei P Smart FIG-LX1 FIG-L11 FIG-L31 hw eu HLRCF Figo-L11 Figo-L31 9.1.0.115(C432E5R1P3T8) Firmware 9.0.0 r3 EMUI9.0.1 05014XFJ 05014XMW - search androidhost.ru
- HiSuite
Steps:
1. Download the mentioned firmware from androidhost.ru
2. Extrach the dload folder from the zip to your desktop
3. Place the dload folder in the root directory of your SD Card (use a formatted one min. 8GB capacity)
4. Power down the phone, install SD Card and hold both volume buttons while powering on the phone to engage Force Update
5. Let the update finish its job and the phone will reboot too setup screen so just quickly set it up to reach the homescreen.
6. Connect the phone via usb and choose file transfer (for me it only worked that way)
7. Under my computer right click on HiSuite open and click HiSuiteDownloader
8. Finish installing HiSuite and follow on-screen instructions so the phone will be detected and connected to HiSuite.
9. Click Update and now bottom right of the window it should ask you for older version so click on it and it will present you with going back to EMUI 8.
(Explanation: I figured out if you run the latest version of EMUI 9 HiSuite will not present you a older version button thus you cant follow the process in my tutorial so thats why you downloaded the very first EMUI 9 build where it lets you do it)
10. Let HiSuite do its thing like downloading, installing and so on and do not unplug the phone until you come back to the setup screen which will be the EMUI 8 style one.
11. Good job :good: you finally downgraded to android 8.0 and now can unlock the bootloader if you choose so (unlocking costs money - search another thread for that i only focused on downgrading the phone so you can do it if you wish)
Well I hope this tutorial will help you as it helped me!
Feel free to like/thanks this thread and share if it worked or not
Hello! I have the FIG-LX1 vodafone Spain (only I can use one sim card). With Emui 9.1 and dicember 2019 Android patch security. Could I follow the process? Thanks!
I tried this and it worked, thank you! I was getting really mad at the slowiness of this phone in EMUI 9, it was getting worse in every update.
I also want to point one thing. You mentioned a firmware download on android-host.ru of " Huawei P Smart FIG-LX1 FIG-L11 FIG-L31 hw eu HLRCF Figo-L11 Figo-L31 9.1.0.115(C432E5R1P3T8) Firmware 9.0.0 r3 EMUI9.0.1 05014XFJ 05014XMW". While this may be right for your phone model, it may not work on every model. As I see from your post, you have the C432 model. People should look for the firmware for their model or else it may not work (in my case it was C02 and I also found it on android-host.ru).
Other thing I would like to point out is a question. I am not experienced in smartphone modding but as you downloaded the 9.0 firmware in order to downgrade from HiSuite, couldn't you just have donwloaded the 8.0 firmware and install it up front instead of having to pass in HiSuite? (I have not tried this, I have sticked to the instructions provided here. As I said, I do not know much of this).
Nonetheless, thank you again for making my phone usable!
TOY_O_MACHO said:
I tried this and it worked, thank you! I was getting really mad at the slowiness of this phone in EMUI 9, it was getting worse in every update.
I also want to point one thing. You mentioned a firmware download on android-host.ru of " Huawei P Smart FIG-LX1 FIG-L11 FIG-L31 hw eu HLRCF Figo-L11 Figo-L31 9.1.0.115(C432E5R1P3T8) Firmware 9.0.0 r3 EMUI9.0.1 05014XFJ 05014XMW". While this may be right for your phone model, it may not work on every model. As I see from your post, you have the C432 model. People should look for the firmware for their model or else it may not work (in my case it was C02 and I also found it on android-host.ru).
Other thing I would like to point out is a question. I am not experienced in smartphone modding but as you downloaded the 9.0 firmware in order to downgrade from HiSuite, couldn't you just have donwloaded the 8.0 firmware and install it up front instead of having to pass in HiSuite? (I have not tried this, I have sticked to the instructions provided here. As I said, I do not know much of this).
Nonetheless, thank you again for making my phone usable!
Click to expand...
Click to collapse
@TOY_O_MACHO Where have you found the C02 firmware? I try to find it with EMUI 9 version and i cant find anything. I only see this one:
HUAWEI P SMART FIG-LX1 FIG-L11 VODAFONE DEFAULT FIGO-L11 8.0.0.138(C02) FIRMWARE 8.0.0 R1 EMUI8.0 05014XVU.ZIP
Thanks!
T2iw said:
@TOY_O_MACHO Where have you found the C02 firmware? I try to find it with EMUI 9 version and i cant find anything. I only see this one:
HUAWEI P SMART FIG-LX1 FIG-L11 VODAFONE DEFAULT FIGO-L11 8.0.0.138(C02) FIRMWARE 8.0.0 R1 EMUI8.0 05014XVU.ZIP
Thanks!
Click to expand...
Click to collapse
I think that this is the first 9.1 version with C02 (15-june-2019)
Huawei P Smart FIG-LX1 Fig-L11 vodafone default HLRCF Figo-L11 9.1.0.115(C02E6R1P3T8) Firmware 9.0.0 r3 EMUI9.1.0 05014XVU [androidhost.ru].zip
Starting from 9.1.0.176 (C02E11R1P5) I've downgraded to 9.1.0.115(C02) through sdCard.
Then through HiSuite downgraded to 8.0.0.144(C02).
Next step ---> unlook bootloader!
---------- Post added at 09:02 PM ---------- Previous post was at 08:55 PM ----------
TOY_O_MACHO said:
... I am not experienced in smartphone modding but as you downloaded the 9.0 firmware in order to downgrade from HiSuite, couldn't you just have donwloaded the 8.0 firmware and install it up front instead of having to pass in HiSuite? (I have not tried this, I have sticked to the instructions provided here. As I said, I do not know much of this).
Nonetheless, thank you again for making my phone usable!
Click to expand...
Click to collapse
I've tried with 8.0.0.134(C02) through SdCard but the process fails on start.
I don't know if repeating the procedure without HiSuite(putting in SdCard 8.0.0.134(C02)) would have worked equally well.
Got it Working perfectly from 9.1.0.203(C432E11R1...) to 8.0.0.176(C432).
1 Step Closer to Bootloader Unlock
Im sorry to say but this guide does not work.
At least, not for my region which is c782 (UK). I did try with the rom you mentioned anyway, just in case the region would not matter but obviously it does.
There doesnt appear to be a 9.0.x version available for my region on android host so I guess I am totally stuck.
I've tried every downgrade tutorial in existance and none work. every dload method seems to fall over. Tried both androidhost.ru and firmware finder roms and just get nowhere. I give up!
Thank you. I was able to downgrade a FIG-LX1 that was not running latest EMUI 9.1 to EMUI 8.0, and then used another tutorial to flash and older version of EMUI and unlock its bootloader.
Anyone having the 9.1.0 C40 or C900 version by any chance?