Database Develop

Roll Back to EMUI 2.3 for P7-L10 (Only L10 )

First Of All You Should be on P7-L07's EMUI 3.0 .
1 ) Download The Following Files
Stock Recovery for EMUI 3.0
Custom Cust.img for Revertion
Stock B125SP03 for P7-L07....Yes L07 -------> This File is Neccessary
2)Copy These Files onto Your Desktop ..... This Guide is for Windows Users .
3) Make Sure You Have ADB And Fastboot installed on Your Windows
4) Reboot Phone into Bootloader Mode and Connect with PC
5) Open CMD
6) To Navigate to The Files Which are on The Desktop use The Following Command
cd Desktop
Click to expand...
Click to collapse
Then Type
Fastboot flash recovery RECOVERY.img
Click to expand...
Click to collapse
and Now to flash the cust.img Type
Fastboot flash cust cust.img
Click to expand...
Click to collapse
and after the flashing is done type
Fastboot reboot
Click to expand...
Click to collapse
Then Wipe Your Sdcard and extract the Stock rom's Dload Folder into The SDcard
Then go to settings - Updater and do a local Update ..... After That it should Reboot into Stock Recovery and Start downgrading ..... Afterwards u Should Boot into EMUI 2.3
I Got Many Errors WHen I Booted into EMUI 2.3 so I Had to Do Force UPdate in stock recovery .... so Be careful
Afterwards Flash The Latest TWRP Recoery Released By @surdu_petru Which Shows Temp in Recovery and Flash The Amazing Se7en ROm V1.2 and Enjoy The Best Rom For P7-L10
If It works Then Please Report By Leaving Comments Below

Reporting Rom is in 2.3 version.
andromodgod said:
First Of All You Should be on P7-L07's EMUI 3.0 .
1 ) Download The Following Files
Stock Recovery for EMUI 3.0
Custom Cust.img for Revertion
Stock B125SP03 for P7-L07....Yes L07 -------> This File is Neccessary
2)Copy These Files onto Your Desktop ..... This Guide is for Windows Users .
3) Make Sure You Have ADB And Fastboot installed on Your Windows
4) Reboot Phone into Bootloader Mode and Connect with PC
5) Open CMD
6) To Navigate to The Files Which are on The Desktop use The Following Command
Then Type
and Now to flash the cust.img Type
and after the flashing is done type
Then Wipe Your Sdcard and extract the Stock rom's Dload Folder into The SDcard
Then go to settings - Updater and do a local Update ..... After That it should Reboot into Stock Recovery and Start downgrading ..... Afterwards u Should Boot into EMUI 2.3
I Got Many Errors WHen I Booted into EMUI 2.3 so I Had to Do Force UPdate in stock recovery .... so Be careful
Afterwards Flash The Latest TWRP Recoery Released By @surdu_petru Which Shows Temp in Recovery and Flash The Amazing Se7en ROm V1.2 and Enjoy The Best Rom For P7-L10
If It works Then Please Report By Leaving Comments Below
Click to expand...
Click to collapse
REPORTING all things worked for me in L-10 ROM, after hours of trying reversing from ROM 3.0 to 2.3 using several methods, finally is working. Thanks and congratulations for your job !!!!!
After installation the system is asking me to install an update to B126 automatically, this is fantastic since the updates will come to the device normally !!!!!

Unfortunately it doesn´t work on my L10. After flahing stock recovery and cust.img the update starts but fails just some seconds later. ("software install failed! Get online help from..." and "shutdown system now"). Any ideas? I am coming from the se7en ROM with Emui 3.0..

I tried the described procedure but the recovery stacks at almost 85%

For me also - Software install failed...

Try this method: http://forum.xda-developers.com/ascend-p7/general/reverting-emui-3-0-to-2-3-t2934277

@andromodgod
is that Stock Recovery for EMUI 3.0 609 version ?

I don't understand something.
You said "You must be on p7-L07's" but this diy is for p7-l10?
I'm on P7-l10 B609 emui 3.0 and I want to roll back to emui 2.3 b126 official firmware.
How can I do that?
I've tried what you wrote but my phone get stuck

al3xisos said:
I don't understand something.
You said "You must be on p7-L07's" but this diy is for p7-l10?
I'm on P7-l10 B609 emui 3.0 and I want to roll back to emui 2.3 b126 official firmware.
How can I do that?
I've tried what you wrote but my phone get stuck
Click to expand...
Click to collapse
h t t p s://mega.co.nz/#!oEM3ABpa!oxqO8v...-rex7qNlMTg3cY (delete spaces in https) ROLLBACK133SP01
Try this one... unzip update.app to sd card/dload and do force update ( vol +, vol - and power on)
REMEMBER, everything is done at our own risk!
Goodluck!

munjazmn said:
h t t p s://mega.co.nz/#!oEM3ABpa!oxqO8v...-rex7qNlMTg3cY (delete spaces in https) ROLLBACK133SP01
Try this one... unzip update.app to sd card/dload and do force update ( vol +, vol - and power on)
REMEMBER, everything is done at our own risk!
Goodluck!
Click to expand...
Click to collapse
It works.Thank u very much

There is now an official transition rom from huawei italian site (it's called b603sp01) for downgrade (it should work for all european phone but i don't know)
here the step:
-flash b603
-flash any emui 2 rom (121,126,133,...)

munjazmn said:
h t t p s://mega.co.nz/#!oEM3ABpa!oxqO8v...-rex7qNlMTg3cY (delete spaces in https) ROLLBACK133SP01
Try this one... unzip update.app to sd card/dload and do force update ( vol +, vol - and power on)
REMEMBER, everything is done at our own risk!
Goodluck!
Click to expand...
Click to collapse
Thank you very much fellow countryman! Works like a charm!

I've tried to redownload the firmware but MEGA ask me for a description key.

Cant update nor rollback rom version

Hi someone, i hope...
Recently i do a bad upgrade (I think that i flashed recovery on boot, ups!) and after a long, long while i have the phone working again But....
I can't change rom!!!!
Now i have:
- B609 boot unlocked
- B609 stock recovery
- B609 (Flashed through CWM, the only way i can do it)
But i can't change rom, not by dload, neither twrp, neither cwm
Some help? Any idea?
I can flash every recovery and i have tried to roolback b133, update b620 and even b805, but it doesnt work
Can i try another solution?
Thanks in advance!

I'm having the same issue, neither the original stock rom with emui 2.3 or any 3.0 rom install on my p7, all roms ends with an error and after booting there's some apps missing
EDIT: I've followed the only two guides on this forum and still can't install stock rom emui 2.3

So no way to downgrade from b805???

Hey guys... Look @ my edited answer here:
http://forum.xda-developers.com/showthread.php?p=60766165

I'll try! Thanks!
Tonight i've discovered another issue... :-/
When i switch off the phone and connect usb for charging, the phone switchs on, no charging screen, it boots

I think your phone is "dirty". I dont know the right word in english. Try my solution and be happy

Ohhhh! No luck! It gives me the same error, install failed
I've tried to erase the partitions with fastboot and it says: Command nos allowed, i think' perhaps i have security on, but i dont know how to s-off this terminal

I've entered in engineering mode and i can see: fastboot P7-L10C900B805 while i am in b609 (b805 was installed before the fail) so i have to try to downgrade fastboot. Unfortunately it cannot be done with fastboot, again "Command not allowed" :-S

Try to make a install via fastboot with all partions. I think you can try it with b609. If that not work - i have no idea ! I think that you have to wait for full b805, install that via dload and then you can downgrade. The same issue i have with b609 @ beginn

Flash MyROM 3.3, then flash a 3.0 stock recovery. Now do a normal update to the full b609 using the dload folder. Use thw update feature from the settings menu, and not the 3 button method. From here you can do the same for b621 and then b805.
Hope that helps.

I see this http://forum.xda-developers.com/showthread.php?t=3163748
I think thats help

No way
Nadir_Baderoon said:
Flash MyROM 3.3, then flash a 3.0 stock recovery. Now do a normal update to the full b609 using the dload folder. Use thw update feature from the settings menu, and not the 3 button method. From here you can do the same for b621 and then b805.
Hope that helps.
Click to expand...
Click to collapse
I've tried, same results It's is being complicated...

I can believe it!
87insane said:
I see this http://forum.xda-developers.com/showthread.php?t=3163748
I think thats help
Click to expand...
Click to collapse
Yujuuuuu!!!
I'm now in b800, crossing fingers and copying b609 to flash it.... Flashing!!! Fantastic!!!!!
Huawei cust fail, update post process fail
But I'm on b609, then let's try...
Flashing b621! It's solved!!!!
Thank you very much for your support!
:good::good::good::good::good::good::good::good:
The transition package was the key, but i wasn't thinking in emui version anytime....
b805 again... And.... Success!!!
TWRP and Root (http://forum.xda-developers.com/ascend-p7/general/guide-root-b803-recovery-version-t3157477)
All ok!!!
Thanks, thanks, thanks!

onosenday said:
Yujuuuuu!!!
I'm now in b800, crossing fingers and copying b609 to flash it.... Flashing!!! Fantastic!!!!!
Huawei cust fail, update post process fail
But I'm on b609, then let's try...
Flashing b621! It's solved!!!!
Thank you very much for your support!
:good::good::good::good::good::good::good::good:
The transition package was the key, but i wasn't thinking in emui version anytime....
b805 again... And.... Success!!!
TWRP and Root (http://forum.xda-developers.com/ascend-p7/general/guide-root-b803-recovery-version-t3157477)
All ok!!!
Thanks, thanks, thanks!
Click to expand...
Click to collapse
I'm going to try this method too, wish me luck

[solved] Stuck at B609, weird update behaviour

Hello all,
I want to get back to a "normal system" in order to upgrade to B830. What I did so far:
- When B830 wasn´t out, I changed vendor on B621 to "custc02_vodafone_za" in order to flash B817 --> went fine
- Planning to update to B830, tried to revert trough B800 transition package to B6xx, but got an error
- Few days later flashed B830 boot.img, then tried to flash B830 through dload (someone posted that that works – but not for me)
- Flashed MiUi 5.10.17, but android.system force closed
- Tried MyRom 3.3, but errors both in cwm and twrp
- Tried Se7en Rom 3.8 (based on B602), flashing went fine. But downgrade as in the description doesn´t work.
- Flashing of B609 through dload when on Se7en-Rom/ MiUi also fails
- Flashing flashable B609.zip worked finally
So, I am now on B609, but unable to flash B621/MyRom or whatever. The Update fails immediately.
Does anybody have an idea what I could do? I would really appreciate any help!
Best wishes!

try to replace the twrp/cwm recovery with stock b609 recovery..
then force upgrade b609 again..
after that maybe the b621 update may be flashed through local or force update..
finally the b623 should appear and then the b830 (if not then flash them through local update - especially the b623)..
hope this helps
Gesendet von meinem HUAWEI P7-L10 B830

Thanks for your reply! Unfortunately I already tried that without success, but forgot to mention. The same with 3.0to2.3-downgrade-package/B830/B817..
I assume that by changing the cust following this (http://forum.xda-developers.com/ascend-p7/general/b817-vodacom-users-cust-error-changing-t3211386) guide, something went wrong. Before I did this, all was fine.
@majcomtech sorry for asking so directly, but could you imagine what my problem is? Or what else I could try to revert?

I thought a while about what I´ve done so far and came to the conclusion that downgrading using B800 transition pack failed due to my root access. Flasing Miui (based on Android 4.4) was a mistake and made things complicated.
So I thought about flashing system.img/cust.img/userdata.img/boot.img/recovery.img of B817. Is that a bad idea?
I just don´t want to make things worse and ask first.
Thank you!

I finally made it by flashing system.img/cust.img/userdata.img/boot.img/recovery.img of B817, flashing boot.img(of B830) then updating through dload to B830. B830 had some bugs (no motion control etc.) -->B800-->B621-->cust change back to eu-->reflash B621-->B623-->B830. Maybe this will help anyone, if in a similar situation..

l3Nni said:
I thought a while about what I´ve done so far and came to the conclusion that downgrading using B800 transition pack failed due to my root access. Flasing Miui (based on Android 4.4) was a mistake and made things complicated.
So I thought about flashing system.img/cust.img/userdata.img/boot.img/recovery.img of B817. Is that a bad idea?
I just don´t want to make things worse and ask first.
Thank you!
Click to expand...
Click to collapse
1. Reboot to bootloader
2. Flash CWM 3.0
3. Reboot to recovery mode
3.1 Install from SDCARD1
a. Find My-RoMv3.3.zip
3.2 Back
3.3 Wipe data/factory reset.
3.4 Advance
3.5 Reboot to Bootloader
4. Flash stock recovery for 3.0
5. Flash B621
6. Flash vendor version you want
Now all are normal.

As i wrote above, I was able to solve the problem.. I already tested the way you described , but it didn´t work since I got alway errors in CWM/TWRP.
But now all is fine and thanks for your reply anyway!

l3Nni said:
I finally made it by flashing system.img/cust.img/userdata.img/boot.img/recovery.img of B817, flashing boot.img(of B830) then updating through dload to B830. B830 had some bugs (no motion control etc.) -->B800-->B621-->cust change back to eu-->reflash B621-->B623-->B830. Maybe this help anyone, if in a similar situation..
Click to expand...
Click to collapse
Hi how did you change back to European cust in B621? I'm unable to have the right cust. Thanks
Sent from my HUAWEI P7-L10 using Tapatalk

You can find the cust files here (http://forum.xda-developers.com/showthread.php?t=3211386) in Post #1. Flash them through dload on B621 and you should get back.

Im having something similar.
I have installed the s7ver rom, based on 602.
I changed the recovery to the base one.
Now i tried flashing the update.app from the 609.
tried by force update (Vol+ + Vol- + Power) and via updade from file.
both, give a "Software Update failed" just at start.
It boots normally
Any idea????
Thanks

Look in the Se7en-Rom-3.8 Thread, there is the process oft getting back described. It's because the Rom is based on B602, a beta which is not meant for L10 devices..

l3Nni said:
Look in the Se7en-Rom-3.8 Thread, there is the process oft getting back described. It's because the Rom is based on B602, a beta which is not meant for L10 devices..
Click to expand...
Click to collapse
Found it .... ><
Thanks
http://forum.xda-developers.com/showpost.php?p=56860553&postcount=2

B852 - need stock kernel and recovery

Hi guys, where I can find stock recovery and kernel for B852? Anyone willing to upload? Please help
Or how can I do this by myself?

Download Huawei update extractor. Then select your phone type ( usually you won't get it so choose other) then it will ask you to select the update.app then from there you get all the images needed including kernel.. just select them and then you can start extracting

Basically that's true. But I couldn't extract kernel from B852. Some error occurred, that it is invalid file or something like this. Maybe because the package is only 70mb, I don't know. I flashed B839 and than I flashed B852 And yeah, I am not sure if B839 has the same kernel as B852

it should be a full firmware to extract the kernel..

you must unzip update.app first then extract , in ota update is packed with .zip

Honor 5C (Nem-L21) - How to return back stock rom from CM13

Hi, I would've asked if they could tell me someone help me how to return the original rom on my Honor 5C (Nem-L21). Currently I have recorded CM13 (Meticulus). Or whether they can be uploaded at least some custom rom with EMUI. Please help me.

Andrew88cz said:
Hi, I would've asked if they could tell me someone help me how to return the original rom on my Honor 5C (Nem-L21). Currently I have recorded CM13 (Meticulus). Or whether they can be uploaded at least some custom rom with EMUI. Please help me.
Click to expand...
Click to collapse
Do u have the system dump as instructed by Meticulus to return back to stock?

Flash a official recovery and download a official update file and update by holding the right buttons

Derry53 said:
Flash a official recovery and download a official update file and update by holding the right buttons
Click to expand...
Click to collapse
I can never find the official rom for Nem-L21 or official recovery. I tried to Nem-L22 (india version, Android 6.0.1), but failed ... I flash recovery for Nem-L22 and the firmware file UPDATE.APP move to a folder "dload" on the SD card, but crashed on 5%.
now downloading stock rom (Bulgarian version, EMUI 4.1, Android 6.0), I'll try as soon as the download (about 5 hours), but i dont have a official recovery for Nem-L21

if you can change to Nem-L21 or something else, not against it, but I want to EMUI original firmware to my phone.

Andrew88cz said:
I can never find the official rom for Nem-L21 or official recovery. I tried to Nem-L22 (india version, Android 6.0.1), but failed ... I flash recovery for Nem-L22 and the firmware file UPDATE.APP move to a folder "dload" on the SD card, but crashed on 5%.
now downloading stock rom (Bulgarian version, EMUI 4.1, Android 6.0), I'll try as soon as the download (about 5 hours), but i dont have a official recovery for Nem-L21
Click to expand...
Click to collapse
Stock rom link for NEM-L21 : http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1165/g104/v72427/f1/full/update.zip

Shubho20 said:
Stock rom link for NEM-L21 : http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1165/g104/v72427/f1/full/update.zip
Click to expand...
Click to collapse
Thank you very much...Now you simply have to find a stock recovery

Andrew88cz said:
Thank you very much...Now you simply have to find a stock recovery
Click to expand...
Click to collapse
Just use huawei update extractor, and extract the update app. There u will find recovery.img. Simply extract that and flash it.
Head over to this link for update extractor : https://forum.xda-developers.com/showthread.php?t=2433454
Gd luck!!

Shubho20 said:
Just use huawei update extractor, and extract the update app. There u will find recovery.img. Simply extract that and flash it.
Head over to this link for update extractor : https://forum.xda-developers.com/showthread.php?t=2433454
Gd luck!!
Click to expand...
Click to collapse
ok, after download i try...thank you

Did this work? I have the same problem because I have lost sound