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Hello !
I found on the Romanian Huawei page this package, used to go back from 7.0 Nougat EMUI 5.0 to 6.0 Loli EMUI 4.1.
UPDATE: for both L09 and L19
It contains a pdf with instructions.
Advice from other users: use an older version of Android 6 MM
I am not responsible for any bricks.
http://consumer.huawei.com/ro/support/downloads/detail/index.htm?id=91624&key0=Mobile%20Phones&key1=Smartphones&key2=EVA-L19
DOWNLOAD
Hit " Thanks" if this helped you
INSTRUCTIONS from the pdf file:
HUAWEI
EVA-LXX EMUI5.0+Android7.0 rollback to EMUI4.1+Android 6.0
Operation instruction
The instruction guides user to roll back from Android7.0 to Android 6.0
1) Roll back operation includes twice SD card update，only through intermediate package
EVA-LXXC900B300, like below：
2) Allow roll back to Huawei official stable release.
Precautions:
1. Make sure the current system version on your phone is an official Huawei version based on Android 7.0. If your phone has been updated with a non-official version, the rollback may fail and even cause unexpected problems.
2. Make sure your phone system version has not been unlocked or rooted.
3. Your personal data will be erased during the rollback. Be sure to back up all your important data beforehand.
4. Prepare a micro SD card with available storage space at least 8 GB.
5. Make sure the battery level is higher than 30%.
6. The rollback includes two local ROM flashing procedures, first from Android 7.0 to the intermediate package version and then from the intermediate package version to Android 6.0.
Step 1: Back up data.
Your personal data will be erased during the rollback. Be sure to back up all your important data beforehand.
To back up data to your micro SD card, go to Tools > Backup, touch backup, and follow the onscreen instructions.
Step 2: Update your phone to the intermediate package version.
Obtain the EVA-LXX intermediate package (UPDATE.APP) by visiting the official EMUI website or calling the customer service hotline.
Load the UPDATE.APP package to the dload folder under your micro SD card root directory. If there is no dload folder under the directory, please create one. (Do not load the UPDATE.APP package to the internal storage.)
When the phone is powered off, press and hold the volume up, volume down, and power buttons simultaneously to enter forcible update mode. Release the buttons only after the rollback starts. Do not operate the phone during the rollback.
Step 3: Confirm the intermediate package version.
When the phone is powered on, go to Settings > About phone and check whether the displayed version number contains EVA-LXXC900B300.
Step 4: Update the phone from the intermediate package version to Android 6.0.
Download an older version of Android 6.0 full package (UPDATE.APP) for the EVA-LXX from the EMUI official website. Load the UPDATE.APP package to the dload folder under your micro SD card root directory. (Do not load the UPDATE.APP package to the internal storage.)
When the phone is powered off, press and hold the volume up, volume down, and power buttons simultaneously to enter forcible update mode. Release the buttons only after the rollback starts. Do not operate the phone during the rollback.
Step 5: Confirm the system version and restore data( better not).
When the phone is powered on, go to Settings > About phone and check whether the displayed EMUI version is EMUI 4.1 and Android version is 6.0.
Go to Tools > Backup, locate the desired backup record, and follow the onscreen instructions to restore.
It's everywhere now. Here in Bulgaria too. So hard to go back. Wish HiSuite was better and just connect your phone and install stable version, something like iTunes. I am not so advanced on Android, recently switched from iPhone and really want to test the Nougat on this beautiful phone, but if it's bad I will have to buy SD card and do all this crap just to get to stable os... Ain't worth it.
P.S: What this part means "6. The rollback includes two local ROM flashing procedures, first from Android 7.0 to the intermediate package version and then from the intermediate package version to Android 6.0." What is intermediate package version?
it means that it's a 2 step downgrade.
first you flash the update.app in the zip attached (intermidiate package ).
then you flash your desired version of Android 6.
it's not that difficult. and you can do it from the internal memory also via the 3 button combo method
It worked with my L19C432 that was running L19C432B322. Thanks.
Confirmed that it works on L09C432 to, so it's not just for L19.
I can go back to 6.0 but I can not apply theme how to solve please help
Has anyone tried this with L09c636 or L19c636?
RidgeBoyGenius said:
Has anyone tried this with L09c636 or L19c636?
Click to expand...
Click to collapse
Since it's a C900 cust Rolleback it works on all Cust, C636, C432, C185 ..... etc.... L19 or L09 it's the same.
Mostar088 said:
Since it's a C900 cust Rolleback it works on all Cust, C636, C432, C185 ..... etc.... L19 or L09 it's the same.
Click to expand...
Click to collapse
Wonderful news, thank you!
It doesn't work with me : the rollback of B300 to B182 failed.
EDIT : In fact, it didn't work because I didn't have enough battery...
Trying this now I'm L09 C432, what a ballache!
---------- Post added at 01:27 PM ---------- Previous post was at 12:53 PM ----------
This worked for me just fine, thanks OP
Still really hate this phone, well done Huawei :clap:
Themes are not working after rollback...
rudnik8 said:
Themes are not working after rollback...
Click to expand...
Click to collapse
Did you found a solution? I am experiencing the same problem. After downgrading to Android 6 themes don't work. Also i've installed L19C432B180 and when searching for an update its saying its the latest version. I upgraded to Nougat from B182 wich was an OTA update and now i can receive it anymore.
I think Nougat did something to system partion and now after downgrade not everything its working properly.
I'm on L09C432 in UK.. and was considering upgrading..
Is 7.0 N That bad... Ive read its a Leaked version, which usually means Beta... but Ive read a few forums where people are rolling back
Would you recommend staying on B182 for now...
The official beta is quite good, but you can't get in the list anymore. From what i have read, the leaked one is not that ok. I recommend 182 for now
Sent from my EVA-L19 using XDA-Developers mobile app
I had a nightmare with up and downgrade last night. I thought i've broken my new phone but i've managed it to get it working again without any problems (themes also do work here).
What have i all done, for the reason someone else have troubles with downgrading.
Tip: Do not try to backup anything, it will most likely will make things even worse. Wipe and flash without later importing backups from different builds.
My phone: P9 (L19) DualSim
New phone, directly unlocked bootloader and removed OEM protection
Installed TWRP 3.0.2.0
Opened recovery and installed directly the BETA image for my L19
Until this point all works fine. BETA image is buggy, keyboard not working and freezes sometimes
Decided to go back to stock
TWRP is not working anymore, stuck in "Your device is booting"
Always running into Huawei eRecovery, where you can do noting. Repair always fails
Downloaded latest stock image for my L19 and tried the here suggested steps
Note: Before doing the "dload" flash you need to flash stockrecovery, as far as i know and other threads suggest it too
First Update.app flash (from the zip file here) worked fine
Second Update.app flash from the stock rom stuck at 5% and closed with an error
Hours of trying different things, all not working (Other TWRP recovery version with encryption support, wipes, resets, etc...)
Last try: Download an older stock image of my L19. Flash successfully done. Phone boots now into stock rom :good:
Locked Bootloader again (i guess it have been done by the stock rom flash)
Now i'm completely back to stock - Which is currently the best available rom for this phone, IMHO.
Conclusion: The most headache i got from downloading the wrong (too new) stock image. Trying an older one have solved my flash problems.
BrainFooLong said:
I had a nightmare with up and downgrade last night. I thought i've broken my new phone but i've managed it to get it working again without any problems (themes also do work here).
What have i all done, for the reason someone else have troubles with downgrading.
Tip: Do not try to backup anything, it will most likely will make things even worse. Wipe and flash without later importing backups from different builds.
My phone: P9 (L19) DualSim
New phone, directly unlocked bootloader and removed OEM protection
Installed TWRP 3.0.2.0
Opened recovery and installed directly the BETA image for my L19
Until this point all works fine. BETA image is buggy, keyboard not working and freezes sometimes
Decided to go back to stock
TWRP is not working anymore, stuck in "Your device is booting"
Always running into Huawei eRecovery, where you can do noting. Repair always fails
Downloaded latest stock image for my L19 and tried the here suggested steps
Note: Before doing the "dload" flash you need to flash stockrecovery, as far as i know and other threads suggest it too
First Update.app flash (from the zip file here) worked fine
Second Update.app flash from the stock rom stuck at 5% and closed with an error
Hours of trying different things, all not working (Other TWRP recovery version with encryption support, wipes, resets, etc...)
Last try: Download an older stock image of my L19. Flash successfully done. Phone boots now into stock rom :good:
Locked Bootloader again (i guess it have been done by the stock rom flash)
Now i'm completely back to stock - Which is currently the best available rom for this phone, IMHO.
Conclusion: The most headache i got from downloading the wrong (too new) stock image. Trying an older one have solved my flash problems.
Click to expand...
Click to collapse
I found the same procedure to work. What really puzzled me was that the flashing of update.app "crashed" at 5%. I also tried all sort of solutions, with only new error messages as result.
The final solution to flash an older image was not exactly obvious
i will update OP. thank you for sharing
I tried 2 versions, still gives me errors. Could someone provide the exact version of the rom used in rollback?
Hey Guys..
Bought a L29 Mate 8 last week, have been able to unlock, root but now want to install some custom roms..
The installations instructions tell me to go (back) to a stock B1xx rom through the "dload method", and next upgrade to a stock B3xx rom through the "dload" method.
I'm running stock B170, rooted/unlocked right now.
I've loaded a stock B3xx update.app file on my phone, but i'm unable to get the phone to run this update, it either boots normal to system, or when I use vol+/vol-/power it boots into TRWP instead.
Other instructions mention a setting to run update manual going through settings/update but can't find a "manual update"" setting there.
Hope you guys can help me going with this one...
Thanks
You need to flash stock recovery back,use srk tools.
gm007 said:
You need to flash stock recovery back,use srk tools.
Click to expand...
Click to collapse
Thanks for your quick reply, still a little lost here, will give that a try..
Thanks
Regan078 said:
Thanks for your quick reply, still a little lost here, will give that a try..
Thanks
Click to expand...
Click to collapse
That did the trick, it will "force" manual update now.
Now I run in another problem though, stock rom links for my "NXT-L29C636" are not available, link for C185B170 was still working and the only B320 stock i could find was the one shared by user "bluheart" in his signature "C185B320"
So decided to rebrand the device to C185 with SRK Tool so I would be able to flash these stock roms, first flashed C185B170 through dload method with no problem, and from there tried to flash C185B320 but update does not get passed 5%.
The rom version listed in the device is somehow NXT-C900B170, using the "* # * # 2846579 # * # *" code in dialer confirms phone is "C185 - Africa / Middle East"
Any pointers ?
(edit: tried to reflash C185B170 through download method, also gets stuck @5%)
Thanks
Now in about phone it show C900B170?
Can you get an ota update via updater?
The latest c185B200 so start from this one.
http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1076/g104/v65326/f1/full/update.zip
Or you need to root B170 and change build display and oem info to C185 in srk tools.after this you will be able to dload c185b320
gm007 said:
Now in about phone it show C900B170?
Can you get an ota update via updater?
The latest c185B200 so start from this one.
http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1076/g104/v65326/f1/full/update.zip
Click to expand...
Click to collapse
Thanks again for your help...
Used SRK Tools to change ROM version from "NXT-C900B170" to installed "NXT-L29C185B170" in the hope this miss match prevented the update, no luck, also no OTA available.
Thanks for the link, will download this and try to get this going first...
(edit: Changing OEM, SRK Tools read the device as AL-10?, changed to C185, fingers crossed)
Regan078 said:
Thanks again for your help...
Used SRK Tools to change ROM version from "NXT-C900B170" to installed "NXT-L29C185B170" in the hope this miss match prevented the update, no luck, also no OTA available.
Thanks for the link, will download this and try to get this going first...
Click to expand...
Click to collapse
Yes flash b200 like you are debranding,I mean change build prop display and oem info to c185.
ro.build.display.id=NXT-L29C185B002
gm007 said:
Yes flash b200 like you are debranding,I mean change build prop display and oem info to c185.
ro.build.display.id=NXT-L29C185B002
Click to expand...
Click to collapse
Had no luck with the C185 roms, they all got stuck at 5%, decided to rebrand back to C636 and dload the original NXT-L29C636B170 and that worked, so will create a TRWP backup from here to fall back on.
Will give the rebranding to C185 another try later, with the rom you provided (i wonder if i went wrong somewhere with all rom downloads named "Update.zip" I might have mixed something up)
Maybe you/anybody confirm I take the right steps to rebrand to C185 and update to the NXT-L29C185B200 ROM provided.
Using SRK Tool: (current: NXT-L29C636B170/Rooted/Bootloader Unlocked)
1-Install TRWP
2-Change OEM from C636 to C185
3-Change ro.build.display.id=NXT-L29C636B170 to NXT-L29C185170 or NXT-L29C185B200 ?
4- Copy NXT-L29C185B200 "update.app" to device/dload
5- Install Original Recovery
6- Use vol+/vol-/power to apply B200 update
8-Install TRWP/ create Backup
9- Root ?
10- Copy NXT-L29C185B320 "update.app" to device/dload
11- Install Original Recovery
12- Use vol+/vol-/power to apply B320 update
Thanks in advance....
Debranding
anyone tell where to email for bootloader unlock if website is not recognizing my phone.
updated to B200
Thanks for your help gm, just made a new attempt and now successfully picking up the updates as a C185.
Getting ready for a custom rom
Does anyone know what's going on with my build number? I used firmware finder + dload for b360 and now I have this.
Thisishayden said:
Does anyone know what's going on with my build number? I used firmware finder + dload for b360 and now I have this.
Click to expand...
Click to collapse
You updated to a test build. You'll probably need to rollback to Marshmallow using Huawei's rollback package. You could try using the Charles method... Look in the guides forum for how to do a Sympathic update.
Saythis said:
You updated to a test build. You'll probably need to rollback to Marshmallow using Huawei's rollback package. You could try using the Charles method... Look in the guides forum for how to do a Sympathic update.
Click to expand...
Click to collapse
Did the roll back. Wasn't able to flash the 2nd package the way that it described in the rollback PDF but it worked in the method described in the PDF that comes with the 6.0 firmware download (applying update from SD card). Both packages took a couple tries updating, not sure why.
I ended up on the test build using the Charles method last time.
Used the Firmware Finder (Team MT) proxy route this time and easily made it to B360.
Thanks for your help!
Can you help me with the steps,i am now in the NRD90M test keys mode
Thisishayden said:
Did the roll back. Wasn't able to flash the 2nd package the way that it described in the rollback PDF but it worked in the method described in the PDF that comes with the 6.0 firmware download (applying update from SD card). Both packages took a couple tries updating, not sure why.
I ended up on the test build using the Charles method last time.
Used the Firmware Finder (Team MT) proxy route this time and easily made it to B360.
Thanks for your help!
Click to expand...
Click to collapse
Can you help me with the steps,i am now in the NRD90M test keys mode
Farhad Sarker said:
Can you help me with the steps,i am now in the NRD90M test keys mode
Click to expand...
Click to collapse
Hello
If you have got a FRD-L09 C432, you have to dl and flash the B131 before upgrading toward Nougat ( B360 for example). You have to use the dload method ( dl B131 and extract then) and you place the Update.app in a file named dload in a SD card in your phone. Turn on your phone and you use the 3 buttons ( VOL +, VOL - and Power in same time until the tel enters in flashing).
nico97470 said:
Hello
If you have got a FRD-L09 C432, you have to dl and flash the B131 before upgrading toward Nougat ( B360 for example). You have to use the dload method ( dl B131 and extract then) and you place the Update.app in a file named dload in a SD card in your phone. Turn on your phone and you use the 3 buttons ( VOL +, VOL - and Power in same time until the tel enters in flashing).
Click to expand...
Click to collapse
i have FRD-L19C636B102 I have used the FF and got to download only the update.app for C636B360 and now am stuck with NRD90M-test keys please help me
Farhad Sarker said:
i have FRD-L19C636B102 I have used the FF and got to download only the update.app for C636B360 and now am stuck with NRD90M-test keys please help me
Click to expand...
Click to collapse
Hi
What about the B380 which is approved in FF? You can try it by proxy method?!
Sent from my FRD-L09 using XDA Labs
No updater
nico97470 said:
Hi
What about the B380 which is approved in FF? You can try it by proxy method?!
Sent from my FRD-L09 using XDA Labs
Click to expand...
Click to collapse
but my current build is NRD90Mtest keys and there is no updater app in my device.I cannot use firmware finder to update as the app is missing. What do I do?
Farhad Sarker said:
but my current build is NRD90Mtest keys and there is no updater app in my device.I cannot use firmware finder to update as the app is missing. What do I do?
Click to expand...
Click to collapse
Hello
For me, you have to flash a Marshmallow file before upgrading toward Nougat. Dl one official file. It seems the beginning of a rollback.
Farhad Sarker said:
but my current build is NRD90Mtest keys and there is no updater app in my device.I cannot use firmware finder to update as the app is missing. What do I do?
Click to expand...
Click to collapse
Same here for me. I am going to downgrade via Intermediate package instead of marshmallow package, am I right doing this?
---------- Post added at 05:25 AM ---------- Previous post was at 05:14 AM ----------
nico97470 said:
Hello
For me, you have to flash a Marshmallow file before upgrading toward Nougat. Dl one official file. It seems the beginning of a rollback.
Click to expand...
Click to collapse
Same situation here, do I have to flash via Marshmallow package or Intermediate package? Thanks for your help.
lalosauza13 said:
Same here for me. I am going to downgrade via Intermediate package instead of marshmallow package, am I right doing this?
---------- Post added at 05:25 AM ---------- Previous post was at 05:14 AM ----------
Same situation here, do I have to flash via Marshmallow package or Intermediate package? Thanks for your help.
Click to expand...
Click to collapse
For my mind, you have to do a rollback toward MM. So, you have dl two files in official Honor site! Then, you apply the dload method ( extract and put an update.app in a Sd card in a file named Dload) and flash by the three buttons ( Vol+, Vol- and Power) for the first file and repeat the same operation for the second.
I hope it works.
Farhad Sarker said:
but my current build is NRD90Mtest keys and there is no updater app in my device.I cannot use firmware finder to update as the app is missing. What do I do?
Click to expand...
Click to collapse
There may be 2 zips for model. One is main zip and then one for data zip. You need to flash both. It will bring back the updater app in setting.
For NRD TEST KEY, you need to flash the oeminfo file. Let me know if help required
Hi I got a big problem with my Honor 8. I buy it from UK seller but it send it from China... I got a FRD-AL00 = seem to be a chinese phone, but I got all Google app installed.
After an OTA Update the phone was stuck on a recovery screen, can't make update or other actions. After 2 days searching I found a Chinese ROM for AL00 phone, I installed it via dload method, the phone boot properly and I'm now on EMUI 5, but no google app and the Build number is NRD90M test-keys --> DAMN !!
I think I made a huge mistake. I don't know what version of Firmeware I got before the stuck so I don't know what to search... Can some body help me an tell me wich Firmeware ton installe or how to roll Back and apply the good update ? It seem a Chinese Phone but I use it at EU, can I flash with a EU firmware and how ?
Somes information on the box of my phone :
FRD-AL00
3 GB RAM + 32 GB ROM
4G
TD-LTE ... 02-5043-161913
Q/DKBA 2330-2016 CMIIT ID : 2016CP2362
I got a date 2016.11
jimbo19 said:
Hi I got a big problem with my Honor 8. I buy it from UK seller but it send it from China... I got a FRD-AL00 = seem to be a chinese phone, but I got all Google app installed.
After an OTA Update the phone was stuck on a recovery screen, can't make update or other actions. After 2 days searching I found a Chinese ROM for AL00 phone, I installed it via dload method, the phone boot properly and I'm now on EMUI 5, but no google app and the Build number is NRD90M test-keys --> DAMN !!
I think I made a huge mistake. I don't know what version of Firmeware I got before the stuck so I don't know what to search... Can some body help me an tell me wich Firmeware ton installe or how to roll Back and apply the good update ? It seem a Chinese Phone but I use it at EU, can I flash with a EU firmware and how ?
Somes information on the box of my phone :
FRD-AL00
3 GB RAM + 32 GB ROM
4G
TD-LTE ... 02-5043-161913
Q/DKBA 2330-2016 CMIIT ID : 2016CP2362
I got a date 2016.11
Click to expand...
Click to collapse
You need the oeminfo file of this version and then need to dload again to be able to get rid of nrd test keys. There is a detailed procedure in my debranding guide in signature but you need to have oeminfo file for your model and then firmware.
Or you can try debranding guides for honor 8 to other variant to have Google also.
shashank1320 said:
You need the oeminfo file of this version and then need to dload again to be able to get rid of nrd test keys. There is a detailed procedure in my debranding guide in signature but you need to have oeminfo file for your model and then firmware.
Or you can try debranding guides for honor 8 to other variant to have Google also.
Click to expand...
Click to collapse
Do you know where I can find my oeminfo en firmware for my version for working in EU zone ?
jimbo19 said:
Do you know where I can find my oeminfo en firmware for my version for working in EU zone ?
Click to expand...
Click to collapse
You may need to request the sams in q&a section so thst someone kind enough can update the sams.
hi
i have a same problem with my honor 8 ( FRD-L09 ) test-keys build number
i saw that there is new android 8 released for that ( 8.0.0.562 (C432) . so can i flash it using Micro sd directly with Vol + & vol - ?
---------- Post added at 03:07 AM ---------- Previous post was at 02:21 AM ----------
nico97470 said:
Hello
If you have got a FRD-L09 C432, you have to dl and flash the B131 before upgrading toward Nougat ( B360 for example). You have to use the dload method ( dl B131 and extract then) and you place the Update.app in a file named dload in a SD card in your phone. Turn on your phone and you use the 3 buttons ( VOL +, VOL - and Power in same time until the tel enters in flashing).
Click to expand...
Click to collapse
hi
i downloaded C432B131 and try to flash it using 3 buttons but it goes to 5% and give error again.
delete
It took me 2 full days to finally successfully upgraded my ancient firmware (L09C16B170) to the updated version (L09C432B397). There are a lot pieces of information that I gathered from this forum and all over the internet that collectively helped me navigate this ordeal. Just want to share it with anyone who is in the same boat, although I know that P9 won't last for too long since P10 has been out for a while. However, if you still want to revive your P9, keep reading.
Requirement
Before reading, you need to understand ways of entering different modes of your P9 phone, which will be used many many times during your upgrade:
Enter recovery mode (also how you enter TWRP) - see this GUIDE
Enter fastboot mode - see this GUIDE
Enter manual upgrade mode (also called dload method; This is NOT TWRP method) - see this GUIDE. Please IGNORE any software or download information in this guide. I want you to refer to this guide for how to do it, NOT what to use or download!
You also need to download and know how to use ADB tool which is quite simple. Search the forum or google and you will find plenty of information and the download links. If you hate command lines, you can even use the GUI version from here.
You will probably also need to use Firmware Finder for Huawei (HWFF) to download firmware of interest for manual update during this process. HWFF is an app that can be installed for free via your phone Google Play Store. The downloaded firmware is saved under the HWFF folder in the internal memory. You might need to unzip these files for upgrade via dload method or directly via TWRP method without unzipping. However TWRP method requires you to unlock the bootloader and install TWRP in the phone (see below for details).
First step - debranding
If you are already on C432xxxx, you might just skip this step. I followed this thread partially (Debranding Guide by Z-Blade), since the whole thing doesn't work for me 100%.
Z-Blade did a fantastic job describing how to debrand his C34 firmware to C342B361. My original version is C16B170 which is a South Africa branded firmware. But I found certain steps in this guide could be omitted and certain steps didn't work in my case. Here is my modified version based on Z-Blade's version:
1. Unlock your bootloader and install TWRP
How to unlock bootloader? Follow this GUIDE. Even though it's for Huawei Ascend XT. It works for P9 as well. You only need to complete Part 1.
After you unlock the bootloader, install TWRP. Depending on which firmware version you're on, the version of TWRP that might work for your device changes. I encountered numerous booting loops due to incorrect version of TWRP. Finally I found that these three versions work for me (3.1.0-0, 3.1.1-0, 3.1.1-1). Always go with the highest version first (3.1.1-1). If you find yourself stuck in the booting screen, long press your power button until you get out of it and install another version of TWRP. Please go to TWRP official website to download TWRP for Huawei P9. Follow this GUIDE to install TWRP recovery on your phone.
2. Flash OEM info file for C432
After you unlock the bootloader and install TWRP recovery, download oeminfo-huawei-p9-eval09-c432.zip from this THREAD and flash it via TWRP method.
3. Flash C432B136 firmware
Download and flash the dload-huawei-p9-eval09-eva-b136.zip via dload method from this thread. After flashing and rebooting your phone, you should be on the L09C432B136 firmware. NOTE: If it boots up to a white screen asking you to enter password, reboot into recovery by holding volume up when you powering up your phone, do a wipe partition and factory reset. You may need to reboot your phone a number times before the phone boots up correctly.
Up to this stage, you have debranded your phone to an european version.
Second step - stepwise firmware upgrade
1. Update from B136 to B166 or B182
As mentioned in Z-Blade's original post, many people will not be able to directly update from B136 to B182. I am one of them. Go into the updater in the phone setting, refresh "check for update". If you can receive B182 update, by all means go for it. If you only receive B166 update, go for it as well. After B166 update and rebooting your phone, check updater again to see if you receive B182 update in the Settings menu. If this method does not work, manually update to B182 by following the steps here via dload method.
2. Update firmware from B182 to B360/361/378 and also upgrade OS from Android 6.0/EMUI 4.1.x to Android 7.0/EMUI 5.0
According to Z-Blade, "After your phone has rebooted and you are on the B182 firmware, you need to now update the firmware to B361 via Huawei Updater 2.0". However, in my case, I tried many times and always failed at this step. I found a workaround by updating to B360 instead of B361. Please follow this GUIDE to update to B360 or B361, whichever works for you. However, please pay attention to following change that I found critical:
- The version of Huawei HiSuite is critical for the success in this step. The GUIDE provided Hisuite download link (version 5.0.0.301_OVE). However, it does not work together with Huawei Updater 2.0 in my hands. This error has wasted me almost half day. Instead, I finally found out the problem and went to HERE to download the version 5.0.1.300 and it finally worked
- However, if even after HiSuite and Updater both work together fine the update does not proceed successfully (the updater might get stuck), you need to update it manually via dload method. Search EVA-L09C432B360 or EVA-L09C432B361 in Firmware Finder for Huawei as mentioned above and download the Full-OTA version (~2G). After download, move the corresponding folder containing firmware zip files under "HWFF" folder in the internal memory to the external SD card. Unzip the firmware file and update your phone using dload method. You may also try TWRP method which can install zip files directly, but at this point, you bootloader will be re-locked and TWRP will be gone. You need to unlock the bootloader and re-install TWRP again as mentioned above.
After you successfully update the firmware to B360 or B361, now you should have Android 7.0 and EMUI 5.0 on your phone. Now go to the updater in your phone setting. You should receive B378 OTA update. Proceed with the update...
You might not need to strictly follow following steps to update your phone to any firmware beyond B378. However, since a lot of new ROMs are based on B380+ or even B390+, if you want to use those, you might need to further update your firmware first.
2. Update firmware from B378 to B383
After updating to B378 and rebooting your phone, check if your phone receives B383 update OTA. If yes, proceed. If not, go to HWFF, download B383 Full-OTA firmware and update via either dload or TWRP method.
3. Update firmware from B383 to whatever later version
After successfully updating your phone to B383, you basically can flash your phone with anything firmware and ROMs built on B380+. I find it unnecessary to update to B386. What I did was that I directly updated from B383 to B394 by following this GUIDE. Since I wanted to try BlueWei 5.7 which is based off B397, I also followed the same guide to update my firmware to B397 before flashing BlueWei ROM.
Now please enjoy all kinds of new ROMs and the fast, revived P9. After this update, my P9 is super smooth (the original firmware and OS was utterly slow and sluggish) and I think I will keep using this phone until it really can't keep up with the hardware requirement of new apps etc.
Hope my guide is helpful!
Nice job to update things and summarize all together. Few comments, though
- Not necessary to go back to c432 b136, to b182 is enough:
https://forum.xda-developers.com/showpost.php?p=75105886&postcount=280
https://forum.xda-developers.com/showpost.php?p=72153575&postcount=2
- For Nougat, please use Huawei P9 Nougat TWRP:
https://forum.xda-developers.com/p9/development/twrp-t3565703
- For DLOAD method, FullOTA-MF-PV versions should be used
- Besides the two methods listed to initiate DLOAD update, there is also a third one:
'Dial': *#*#2846579#*#*
Project Menu will open, select Software Update
I have a new SHT-AL09 with 172 firmware and a locked bootloader.
This firmware prohibits DC-Unlocker from reading the bootloader unlock code.
How do I downgrade to a previous firmware?
Try HuRUpdater: https://forum.xda-developers.com/mediapad-m5/how-to/unbrick-mediapad-m5-install-otas-t3856312
You should be able to install TWRP even with locked bootloader. Download the full OTA and follow the HuRUpdater instructions.
Has anyone tried it yet?
Don't want to be the first, since I do not feel too comfortable and I am awqy for a few days
kev1807 said:
Has anyone tried it yet?
Don't want to be the first, since I do not feel too comfortable and I am awqy for a few days
Click to expand...
Click to collapse
I think there is very little risk. Even when the downgrade fails, you should be able to just flash 172 again with HuRUpdater to restore back the original state. Don’t try to rollback too far, install the last version prior to 172 and try dc unlocker again.
I asked on a german Forum and got the response that TWRP cannot be installed with locked BL - which I find somewhat logical - however, I am reaching for the unlikely event that I can get an open Bootloader somehow....
I am a little confused by the instructions. I have to put the TWRP.img in the folder on the SD Card together with the HuRUpdater.zip file and the firmware zip files. But then what? How do I flash anything?
konradsa said:
Try HuRUpdater: https://forum.xda-developers.com/mediapad-m5/how-to/unbrick-mediapad-m5-install-otas-t3856312
You should be able to install TWRP even with locked bootloader. Download the full OTA and follow the HuRUpdater instructions.
Click to expand...
Click to collapse
I cannot flash TWRP with my locked bootloader. I get an error FAILED (remote: Command not allowed) when I try this when the M5 is in fastboot mode: fastboot flash recovery_ramdisk twrp.img
Found this on the last page of the HuRUpdater thread:
Absolute prerequisite: unlocked bootloader
I don't have this so is there another way to downgrade the firmware?
OK, bummer. You can try the dload method, not sure if that works for downgrades though: dload
konradsa said:
OK, bummer. You can try the dload method, not sure if that works for downgrades though: dload
Click to expand...
Click to collapse
I tried that already. It starts installing but at 5% it stops with an error: Software install failed
Flavio said:
I tried that already. It starts installing but at 5% it stops with an error: Software install failed
Click to expand...
Click to collapse
Firmware finder is probably your best bet: https://forum.xda-developers.com/honor-6x/help/to-bln-l21c185-t3578790
konradsa said:
Firmware finder is probably your best bet: https://forum.xda-developers.com/honor-6x/help/to-bln-l21c185-t3578790
Click to expand...
Click to collapse
Firmware Finder apparently does not work with EMUI8 anymore.
And there is no rollback package available for the M5.
I have always found a solution for these kind of problems on XDA (and I have had a bricked device or two) but for the moment I am at a loss.
Guess I will have to learn to live without root and with the stock Huawei firmware...
Flavio said:
I tried that already. It starts installing but at 5% it stops with an error: Software install failed
Click to expand...
Click to collapse
Flavio said:
Firmware Finder apparently does not work with EMUI8 anymore.
And there is no rollback package available for the M5.
I have always found a solution for these kind of problems on XDA (and I have had a bricked device or two) but for the moment I am at a loss.
Guess I will have to learn to live without root and with the stock Huawei firmware...
Click to expand...
Click to collapse
Sorry mate, tough luck. ? I think the hardware of the device is pretty nice, but the stock firmware is so full of crap and spyware, totally unacceptable.
when downgrading using dload, check for xloader version first.
https://forum.xda-developers.com/showthread.php?t=2433454
I jut downgraded my M5 AL19-CMR 8.0.0.172 back to 8.0.0.161 without any problems.
I used the firmware file from https://androidhost.ru/ I used the 8.0.0.161 dated 17.07.2018, I am in Germany and have as it seems the european version of the tablet!
kev1807 said:
when downgrading using dload, check for xloader version first.
https://forum.xda-developers.com/showthread.php?t=2433454
I jut downgraded my M5 AL19-CMR 8.0.0.172 back to 8.0.0.161 without any problems.
I used the firmware file from https://androidhost.ru/ I used the 8.0.0.161 dated 17.07.2018, I am in Germany and have as it seems the european version of the tablet!
Click to expand...
Click to collapse
For my SHT-AL09 there is no older firmware on androidhost.ru than B172.
I have downloaded the B163 and B152 firmware through Huawei Firmware Finder and I can extract it with HuaweiUpdateExtractor but then what?
Flavio said:
I have a new SHT-AL09 with 172 firmware and a locked bootloader.
This firmware prohibits DC-Unlocker from reading the bootloader unlock code.
How do I downgrade to a previous firmware?
Click to expand...
Click to collapse
From my latest findings:
Bootloader need to be unlocked for DOWNGRADE to sucess in firmware mode with a working dload service repair firmware.
With locked bootloader you'll only be able to DOWNGRADE in eRecovery mode with the latest firmware approved (It will be a downgrade only if said version is the latest approved fetched in eRecovery and inferior to yours current)
I did not find yet how the latest firmware shown/available in eRecovery is fetched into eRecovery. I think it happens in normal mode sometimes when you're connected online. You'll then have to reboot later to eRecovery to be shown...
Now, for your SHT-AL09 B172 with august 2018 secutity patches, the only way to downgrade is to get your unlock code and vice&versa.
Luckyly, third-party sellers are just starting to provide working bootloader's unlock code online for around 30~50€.
New devices are supported.
You just pay, gave them Model ID, IMEI1, Serial, Product ID and you'll get your code within the next hours.
You just pay, gave them Model ID, IMEI1, Serial, Product ID and you'll got it within the next hours. I already tested it on few devices.
FunkyHuawei does it for 130€ per device with other services included.
Flavio said:
For my SHT-AL09 there is no older firmware on androidhost.ru than B172.
I have downloaded the B163 and B152 firmware through Huawei Firmware Finder and I can extract it with HuaweiUpdateExtractor but then what?
Click to expand...
Click to collapse
I am also interested in rooting M5. Where you able to downgrade the tablet from B172 to B161?
No
I am also looking for a way to downgrade my Mediapad M5.
I have Hauwei MediaPad M5 CMR-AL09 (C432) currently running 8.0.0.192. dc-unlocker does not work with this version so I can not unlock bootloader.
This is what I have done:
* Format external sdcard into exfat. I used my Ubuntu Linux computer for this, sudo mkfs.exfat /dev/sdx1.
* Put the empty sdcard into the tablet.
* Download android app "Firmware Finder for Huawei" and I choose CMR-AL09C432B161 (8.0.0.161) FullOTA-MF. Downloaded that into update.zip file.
* I use android app FX File Explorer to get read/write access to the mediacard and to create the dload folder.
* I used android app FX File Explorer to extract only UPDATE.APP file into mediacard and the dload folder. The file is around 4.2GB in size when extracted. I also tried to put all files into dload folder but with the same result below.
* Open dialer and type in *#*#2846579#*#*. Go to software upgrade and choose SDCard upgrade. The tablet will now restart and do the downgrade.
* Problem now is that it goes into 5% and then fails.
Am guessing there is some protection to downgrade into 8.0.0.161 version.
Guys.. Let's solve this. :crying:
Blinkiz said:
I am also looking for a way to downgrade my Mediapad M5.
I have Hauwei MediaPad M5 CMR-AL09 (C432) currently running 8.0.0.192. dc-unlocker does not work with this version so I can not unlock bootloader.
This is what I have done:
* Format external sdcard into exfat. I used my Ubuntu Linux computer for this, sudo mkfs.exfat /dev/sdx1.
* Put the empty sdcard into the tablet.
* Download android app "Firmware Finder for Huawei" and I choose CMR-AL09C432B161 (8.0.0.161) FullOTA-MF. Downloaded that into update.zip file.
* I use android app FX File Explorer to get read/write access to the mediacard and to create the dload folder.
* I used android app FX File Explorer to extract only UPDATE.APP file into mediacard and the dload folder. The file is around 4.2GB in size when extracted. I also tried to put all files into dload folder but with the same result below.
* Open dialer and type in *#*#2846579#*#*. Go to software upgrade and choose SDCard upgrade. The tablet will now restart and do the downgrade.
* Problem now is that it goes into 5% and then fails.
Am guessing there is some protection to downgrade into 8.0.0.161 version.
Guys.. Let's solve this. :crying:
Click to expand...
Click to collapse
Hmhm. I downgraded my Mediapad M5 Pro from 8.0.0.172 to 8.0.0.161
This is what I did:
https://www.android-hilfe.de/forum/...uer-huawei-mediapad-m5-ab-08-2018.892304.html
(short paraphrase of my downgrade-"guide" at android-hilfe.de)
1) check xloader-version
2) Download the potential downgrade from androidfilehost.ru (this worked for me, again, M5 PRO (CMR-AL19), Europe! https://androidhost.ru/byu )
2.1) The structure inside is firmware-name>software>dload
2.2) copy dload onto your SD (root directory)
3)The downgrade-process
3.1) power off the device
3.2) Volume up AND down AND Power Button for some seconds
3.3) Downgrade should start! If folder is not recognized, a Pink screen will appear - just do it from the start.
After rebooting, you should then have the version you wanted to downgrade to.
I have done this several times ( accidently updated once or twice )and it worked without any trouble.
The 5% thing: it stayed at 5% for quite some time. But it always went on after some time, at least for me
I read somewhere, sometime ago that with Firmware Finder the security check that is somewhere included in the file is not removed and therefore you cannot use those files. It seems imperative to me that one uses androidhost.ru (no guarantee that this information is right - so feel free to correct me )
ah, sorry only now I realized that you specified CMR-AL09, we had someone do it for SHT-AL-09, sorry :-/
but why don't you try the files from androidhost.ru (download the correct firmware! I linked the one for the M5 Pro! )
Thanks kev1807 for the input.
I tried the firmware you linked to for Huawei MediaPad M5 CMR-AL09 (C432) version 8.0.0.161. It did not work.
I found the version 8.0.0.190 on androidfilehost.ru and that worked. So I have now downgraded from 8.0.0.192 to 8.0.0.190 but that will not help me much. Downgrading into 8.0.0.161 still does not work.
I was on 8.0.0.192 and manage to use the file
"Huawei MadiaPad M5 CMR-AL19 hw eu Cameron-AL09A 8.0.0.190(C432) Firmware 8.0.0 r1 EMUI8.0 05014XYB [androidhost.ru]"
I have tried these packages but they have not worked.
Huawei MadiaPad M5 CMR-AL09 hw ru Cameron-AL09A 8.0.0.181(C10)Firmware8.0.0r1EMUI8.005014YQD [androidhost.ru]
Huawei MadiaPad M5 CMRCameron-AL19B 8.0.0.161(C432) Firmware Android 8.0 EMUI 8.0 05014XYC androidhost.ru