Downgrade solution 4.4 -> 4.2 - Huawei Ascend P6, Mate

For those who have flashed kitkat on their devices and have an update fail, here is the solution!
1. Download this UPDATE.APP file and unzip to your phone.s sdcard in the dload directory:
2. Shut down your phone.
3. Power on by holding Power+Vol Up+Vol Down end release all the keys as soon as the Huawei logo appers.
4. The phone will upgrade some files from the file you downloaded and boot into your KitKat 4.4
5. Put your B125 UPDATE.APP in the dload directory of your sdcard. Maybe 1st rename the current fallback UPDATE.APP to e.g. UPDATE.APP.fallback should you ever need it again to downgrade. (here is a very fast download link:
6. Shut down your phone and boot it with the 3 keys (remember to release the keys as soon as the logo appears) to downgrade your firmware.
and.. DONE!!

LINKS::
Here are the links!
little update: dl.vmall.com/c01l4l4a2y
b125 update: dlbase.huaweiblog.de/data/_uploaded/downloads/files/Ascend%20P6/Firmware/B125.rar
PLEASE!

Related

Help

hello !
I was a new person and P6 is my first smartphone, however through xda forums I have root and install CWM + TWRP DC . Recently I have updated to the last B506 kk "local update" and install twrp_2_6_3_7 success . But I'm not happy about the B506 should have been lowered by 125 local update . And the problem happened : my phone can not work always reboot into TWRP recovery . I rom via TWRP is the error message :
skip md5 check : no md5 file not found .
detailed partition zip update flashing error ' external_sd/B506.zip '
e : signature verification failed zip 1 .
I tried many ways but failed my phone hangs on TWRP. Finally I B506 stock rom of surdu_petru and success.
But now my phone is lost flower icon instead Huawei ANDROID letters and several other errors. Simultaneously could not pass local rom update, I still get md5 error when using TWRP rom. I want to reinstall rom 125. Who can tell me what my problem is? and one way or another?
Sorry for my english capital!
Try first to get back stock recovery. With TWRP you can't flash stock firmware.
thank god I did downgrade from B506 to B125
downgrade
beshert said:
thank god I did downgrade from B506 to B125
Click to expand...
Click to collapse
hi, can you please share how did you successfully downgrade the phone . I am starving to see old themes and speed again
Regards
smoothumut said:
hi, can you please share how did you successfully downgrade the phone . I am starving to see old themes and speed again
Regards
Click to expand...
Click to collapse
I installed the stock recovery from TWRP and install new rom from sdcard / dload by POWER VOLUME + VOLUME -
From hottp://huaweinews.com/2014/03/ascend-p6-b506-kitkat-firmware
mansoor April 5, 2014 at 10:13 pm
===============================================================================
Downgrade from B506 to B125
===============================================================================
NOTE: Downgrading will remove your user files, settings and all the data on Internal Storage
===============================================================================
1. Download P6_Unicom_EMUI2.0.rar (hottp://bit.ly/1hhwXCX) – Click Blue button
showing down-arrow to start download.
2. Download B125 (hottp://dl-uk.huaweinews.com/Roms/Ascend-P6/B125.zip)
3. Create dload folder in SD Card
===============================================================================
4. Extract First Downloaded file (P6_Unicom_EMUI2.0.rar), put UPDATE.APP file (243MB approx.)
in newly created dload folder.
5. Backup Data from Internal Storage (will be deleted after downgrade)
6. Go to Setting > Updates > System Updates > Local Updates
7. Click Confirm
8. Phone will restart into recovery and start the update process.
===============================================================================
9. After restarting the phone, delete UPDATE.APP (243MB) file from dload folder of SD Card.
10. Extract second downloaded file (B125.zip), put UPDATE.APP file (1.52GB) into dload folder
of SD Card.
11. Repeat the process from 6 – 7
12. Phone will restart into recovery and update process will start.
===============================================================================
13. After update phone will restart, at this moment you phone may stuck on Huawei Logo,
Don’t panic, just hold the Power button until Huawei logo disappear.
14. After disappearing of Huawei logo, Immediately press the [ Vol + , Vol - and Power button ]
altogether and keep holding them until you see the recovery screen, release the buttons to
start the update process again, after that your phone will restart normally.
15. Now you have the Official Version of Jelly Bean 4.2 on your Huawei P6-U06.
===============================================================================
Note: Downgrading will remove your user files, settings and all the data on Internal Storage
===============================================================================
---------- Post added at 09:38 PM ---------- Previous post was at 09:32 PM ----------
This will not work because 4.4 will not allow you to downgrade back to 4.2 without help.
You first have to "fix" kitkat 4.4 by using the "P6 Unicom EMUI2.0 back in the subcontract.zip" utility as explained in my previous post to allow it to be downgraded again.
beshert said:
I installed the stock recovery from TWRP and install new rom from sdcard / dload by POWER VOLUME + VOLUME -
Click to expand...
Click to collapse
Can you help me, I did this to downgrade but my phone is now stuck on huawei logo
At which step did your phone get stuck on the logo?
What steps did you follow?
dakifil said:
Can you help me, I did this to downgrade but my phone is now stuck on huawei logo
Click to expand...
Click to collapse
Falcifer said:
At which step did your phone get stuck on the logo?
What steps did you follow?
Click to expand...
Click to collapse
It's OK. I forced restart and then phone updated again and it is working now.
Falcifer said:
From hottp://huaweinews.com/2014/03/ascend-p6-b506-kitkat-firmware
mansoor April 5, 2014 at 10:13 pm
===============================================================================
Downgrade from B506 to B125
===============================================================================
NOTE: Downgrading will remove your user files, settings and all the data on Internal Storage
===============================================================================
1. Download P6_Unicom_EMUI2.0.rar (hottp://bit.ly/1hhwXCX) – Click Blue button
showing down-arrow to start download.
2. Download B125 (hottp://dl-uk.huaweinews.com/Roms/Ascend-P6/B125.zip)
3. Create dload folder in SD Card
===============================================================================
4. Extract First Downloaded file (P6_Unicom_EMUI2.0.rar), put UPDATE.APP file (243MB approx.)
in newly created dload folder.
5. Backup Data from Internal Storage (will be deleted after downgrade)
6. Go to Setting > Updates > System Updates > Local Updates
7. Click Confirm
8. Phone will restart into recovery and start the update process.
===============================================================================
9. After restarting the phone, delete UPDATE.APP (243MB) file from dload folder of SD Card.
10. Extract second downloaded file (B125.zip), put UPDATE.APP file (1.52GB) into dload folder
of SD Card.
11. Repeat the process from 6 – 7
12. Phone will restart into recovery and update process will start.
===============================================================================
13. After update phone will restart, at this moment you phone may stuck on Huawei Logo,
Don’t panic, just hold the Power button until Huawei logo disappear.
14. After disappearing of Huawei logo, Immediately press the [ Vol + , Vol - and Power button ]
altogether and keep holding them until you see the recovery screen, release the buttons to
start the update process again, after that your phone will restart normally.
15. Now you have the Official Version of Jelly Bean 4.2 on your Huawei P6-U06.
===============================================================================
Note: Downgrading will remove your user files, settings and all the data on Internal Storage
===============================================================================
---------- Post added at 09:38 PM ---------- Previous post was at 09:32 PM ----------
This will not work because 4.4 will not allow you to downgrade back to 4.2 without help.
You first have to "fix" kitkat 4.4 by using the "P6 Unicom EMUI2.0 back in the subcontract.zip" utility as explained in my previous post to allow it to be downgraded again.
Click to expand...
Click to collapse
Hi,
I am running OmniRom 4.4.3, and I can't find "Setting > Updates > System Updates > Local Updates", is there any other alternative?
Thanks
iye81 said:
Hi,
I am running OmniRom 4.4.3, and I can't find "Setting > Updates > System Updates > Local Updates", is there any other alternative?
Thanks
Click to expand...
Click to collapse
You can't update to stock firmware from a custom ROM. You need to install stock recovery and use three button combo to update.
Lähetetty minun HUAWEI P6-U06 laitteesta Tapatalkilla
Falcifer said:
From hottp://huaweinews.com/2014/03/ascend-p6-b506-kitkat-firmware
mansoor April 5, 2014 at 10:13 pm
===============================================================================
Downgrade from B506 to B125
===============================================================================
NOTE: Downgrading will remove your user files, settings and all the data on Internal Storage
===============================================================================
1. Download P6_Unicom_EMUI2.0.rar (hottp://bit.ly/1hhwXCX) – Click Blue button
showing down-arrow to start download.
2. Download B125 (hottp://dl-uk.huaweinews.com/Roms/Ascend-P6/B125.zip)
3. Create dload folder in SD Card
===============================================================================
4. Extract First Downloaded file (P6_Unicom_EMUI2.0.rar), put UPDATE.APP file (243MB approx.)
in newly created dload folder.
5. Backup Data from Internal Storage (will be deleted after downgrade)
6. Go to Setting > Updates > System Updates > Local Updates
7. Click Confirm
8. Phone will restart into recovery and start the update process.
===============================================================================
9. After restarting the phone, delete UPDATE.APP (243MB) file from dload folder of SD Card.
10. Extract second downloaded file (B125.zip), put UPDATE.APP file (1.52GB) into dload folder
of SD Card.
11. Repeat the process from 6 – 7
12. Phone will restart into recovery and update process will start.
===============================================================================
13. After update phone will restart, at this moment you phone may stuck on Huawei Logo,
Don’t panic, just hold the Power button until Huawei logo disappear.
14. After disappearing of Huawei logo, Immediately press the [ Vol + , Vol - and Power button ]
altogether and keep holding them until you see the recovery screen, release the buttons to
start the update process again, after that your phone will restart normally.
15. Now you have the Official Version of Jelly Bean 4.2 on your Huawei P6-U06.
===============================================================================
Note: Downgrading will remove your user files, settings and all the data on Internal Storage
===============================================================================
---------- Post added at 09:38 PM ---------- Previous post was at 09:32 PM ----------
This will not work because 4.4 will not allow you to downgrade back to 4.2 without help.
You first have to "fix" kitkat 4.4 by using the "P6 Unicom EMUI2.0 back in the subcontract.zip" utility as explained in my previous post to allow it to be downgraded again.
Click to expand...
Click to collapse
Hi guys
i cant download @ this site http://dl.vmall.com/c01l4l4a2y# please send a proper link thanks!
Good tutorial
Thanks a lot its working for my B506, now I have B510.
For anyone else interested in a completely stable update and speed,battery,gps improvements try http://forum.xda-developers.com/showpost.php?p=54717666&postcount=8

[Q] Update help

Is it possible to update to android kitkat beta from b111 international without any problems?
Miggas09 said:
Is it possible to update to android kitkat beta from b111 international without any problems?
Click to expand...
Click to collapse
Hello,
It should be fine upgrading from B111 to KitKat Beta via local update.
Unrar the file after downloading and put update.app in your SD card in the dload folder (create it if you don't have one).
Reboot your phone holding the power and the volume button together (press volume button on the middle), the update process should start, if not, try again.

Can't update to B512

Hey guys. I was on Kitkat Beta CN with TWRP. I wanted to update to B512 so I reverted to the original recovery B506CN recovery (downloaded it from here http://forum.xda-developers.com/showthread.php?t=2709353)
Once I pressed local update the phone reboots but I get the following error message:
Huawei SD card update fail.....
The update is /dload/update.app
Why do I get this error message and how to fix it in order to update to B512
try one of these http://forum.xda-developers.com/ascend-p6/help/p6-u06-common-issues-fixes-t2843810#post54736765 or http://forum.xda-developers.com/ascend-p6/development/diy-rom-b510-based-add-want-t2843511
Tried many different combinations and nothing helped seems this problem is binded to my SD card. I tried different recovery versions and tried to update when I had 3 different roms. It seems I can't update with the stock recovery no matter what I do. I tried doing that in the internal storage but still the same mistake? Why should it access the SD card for an update in the internal storage?
When I enter recovery manually (without going at update section in settings) I see at first screen this message and I have to restart to enter at the recovery
ro.build.version.release = 4.4.2
ro.product.name = VEDGE
Current build version release is not 4.2 - don't need move.
USB Update Enter...
HUAWEI SDCARD&USB UPDATE AGENT VERSION 2.0
This phone is secureboot phone.
This phone is unlock state
Do you also see it or is this a clue?
Igano said:
When I enter recovery manually (without going at update section in settings) I see at first screen this message and I have to restart to enter at the recovery
ro.build.version.release = 4.4.2
ro.product.name = VEDGE
Current build version release is not 4.2 - don't need move.
USB Update Enter...
HUAWEI SDCARD&USB UPDATE AGENT VERSION 2.0
This phone is secureboot phone.
This phone is unlock state
Do you also see it or is this a clue?
Click to expand...
Click to collapse
You should unplug your device from usb and then reboot to recovery because u can read there "USB Update Enter" that means your device is pluged to a pc
Igano said:
Tried many different combinations and nothing helped seems this problem is binded to my SD card. I tried different recovery versions and tried to update when I had 3 different roms. It seems I can't update with the stock recovery no matter what I do. I tried doing that in the internal storage but still the same mistake? Why should it access the SD card for an update in the internal storage?
Click to expand...
Click to collapse
Have you tried using the file to downgrade back to Jelly bean from KitKat?
https://mega.co.nz/#!8kcVADpB!JKeDlX4WQhmAP3mclNTfIzIjVllw5sMhnrj-3KSpSc4
Download the file, and place the dload folder onto your sd card, and do a local update as usual. When that is done, your phone will reboot normally. Just replace the dload folder with the one from B512, and try updating again. If it still doesn't work, I'd suggest doing a forced update using the 3-button method (power button & volume keys).
dl this first http://www.androidfilehost.com/?fid=23252070760973625
extract it's file in your adb dir
You also could try this > run cmd on your pc >use
adb reboot bootloader
fastboot flash recovery "full name of the file extracted from the downloaded file inc it's extension"
fastboot reboot
then you could try flashing again
astrit1 said:
You should unplug your device from usb and then reboot to recovery because u can read there "USB Update Enter" that means your device is pluged to a pc
Click to expand...
Click to collapse
Yes I tried and it's still the same fails.
miz_pimp said:
Have you tried using the file to downgrade back to Jelly bean from KitKat?
https://mega.co.nz/#!8kcVADpB!JKeDlX4WQhmAP3mclNTfIzIjVllw5sMhnrj-3KSpSc4
Download the file, and place the dload folder onto your sd card, and do a local update as usual. When that is done, your phone will reboot normally. Just replace the dload folder with the one from B512, and try updating again. If it still doesn't work, I'd suggest doing a forced update using the 3-button method (power button & volume keys).
Click to expand...
Click to collapse
Did with your file and just any other rom I could find in the forum, still the same error
digijedi007 said:
dl this first http://www.androidfilehost.com/?fid=23252070760973625
extract it's file in your adb dir
You also could try this > run cmd on your pc >use
adb reboot bootloader
fastboot flash recovery "full name of the file extracted from the downloaded file inc it's extension"
fastboot reboot
then you could try flashing again
Click to expand...
Click to collapse
I tried and this recovery causes a constant vibrating when in recovery mode, apart from that I still get the same errors.
My only fast and easy solution would be if someone uploaded a B512 repack for TWRP. That would be awesome, right now I just use the B513 repack. I don't think I can find the fix to this any more.

Convert Docomo dtab d-02h into Global version 802L

I do not own any of the original work. I just tried it, it worked and Reposted in XDA as there was no such guide here. I know it is an old device but there are still some legends and those people can take advantage of this guide.
It only takes time to do it properly, so you can download necessary files and so on.
Start TWRP
Connect to PC by USB debugging and execute adb reboot recovery command, or press and hold the volume button and power button at the same time (about 8 seconds) from the power off state to start.
Select Wipe ⇒ Format Data from the menu and select yes. . .
* If you do not delete the data once, the upgrade package distributed for Mediapad M2 to be introduced may cause an installation error.
File download
The DL and folder name of the required files are " M2 ". (Zip and harden)
Decompress after DL and move the files inside to "platform-tools".
BOOT.img
CUST.img
SYSTEM.img
RECOVERY.img
There are four files mentioned above.
Install M2-android5.1.X. . .
* If you do not do this, you will not be able to upgrade to a later version.
* Please keep your PC and tablet ADB after this.
adb devices
fastboot flash boot BOOT.img
fastboot flash cust CUST.img
fastboot flash system SYSTEM.img
Finally, make the recovery the original M2 one
fastboot flash recovery RECOVERY.img
fastboot reboot
After reboot, it will be changed to Huawei M2-android5.1.X including recovery.
Download "M2-802LC229B207CUSTC229D006" from " [ROM] [STOCK] [Android 6.0] [M2-802L] B207-Android 6.0 Marshmallow with EMUI 4.0 " of Android 6.0 Marshmallow with EMUI 4.0
XDA . Move the downloaded file to the platform-tools folder without decompressing it and execute the following command. * Please create a "dload" folder in the tablet in advance, otherwise an installation error will occur when the command is executed.
adb push update.zip /sdcard/dload
After transfer, open Settings ⇒ System Update and select “Update Locally” from the menu. After selecting update.zip, tap Install to start the update.
With the above, it is changed to Huawei M2-android6.0.X / EMUI 4.0.X. . . Remember to reboot after installation! ! !
Credits: https://www.yukari.ne.jp/shtml/?p=14588
https://utekno.com/konversi-huawei-dtab-d02h-ke-mediapad-m2-14905
hi,. i just want to clarify, i have this dtab d-02h docomo lock and i cant use it with my simcard.. will this tutorial work? after this i will be able to use diffrent simcard?
hi good day, my tablet sim network lock,. can i still proceed with this? do i need to unlock my bootloader first?? thank you!
hello, i have this dtab d02h, network locked from docomo japan.. current os is 5.1.1, can i skip the 1st step "flash via fastboot" and directly flash the update.zip using dload method.. local update through secret code using calculator... because there is no local update in settings..

[Guide & Links] Install OneUI 3.0 / Android 11 Beta on N975U1

Hi guys, I found out the firmware file to install Android 11 Beta on my N975U1. It was difficult to find the link, but it works perfectly on my phone.
Links:
Odin v3.14.1
N975U1UES5DTJ6 Firmware
Beta 1
Beta 2
In order to update to Android 11 Beta, your phone must must be on N975U1UES5DTJ6 (I'm using XAA CSC) since the Recovery Mode only allow to update from this version to Android 11.
Code:
current_version=N975U1UES5DTJ6/N975U1OYM5DTJ6/N975U1UES5DTJ6
updated_version=N975U1UEU5ZTKI/N975U1OYM5ZTKI/N975U1UEU5ZTKI
dummy_version=N975U1UEU5ZTKI.DM/N975U1OYM5ZTKI/N975U1UEU5ZTKI
source_os_version=10
target_os_version=11
How to downgrade and flash using Odin: (ALL YOUR DATA WILL BE LOST, PLEASE BACKUP)
1. Put your phone in download mode.
2. Open Odin.
3. Select AP, BL, CP, CSC respectively in Odin.
4. Press START.
5. Wait until it is done.
6. I recommend to complete the setup to go into the homescreen
How to upgrade to Android 11:
1. Rename Beta1_N975U1UEU5ZTKI.zip to update.zip
2. Copy it into a SD card
3. Shut down your phone
4. Hold simultaneously Power + Volume Up buttons to get into Recovery Mode.
5. Use the volume key to select Apply update from SD card, then press power button to select.
6. Use the volume key to navigate to update.zip file, then press power button to select.
7. Wait until the process is complete.
8. DONE! You're now on Android 11!
***To upgrade to Beta 2, Rename Beta2_N975U1UEU5ZTL9.zip to update.zip, then do the same process as above.
Bro... need a help... i had downloaded the file... but extracted in .tar... is that correct ?
By the way, im trying to flash from SM-975U to SM975U1
is that possible ?

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