How to downgrade Mediapad T5 to firmware to version 8.0.0.163 ? - Huawei MediaPad T5 Questions & Answers

I need to downgrade to the version 8.0.0.163 to then use DC Unlocker 2 to unlock my bootloader.
I tried to download the update.zip, extract the UPDATE.APP inside a folder called dload on my sdcard root, then entered the recovery mode using volume up + power but then nothing happens, I don't know how to proceed.
Does anyone knows how to do the downgrade process?
Than you in advance

Both volume keys held at boot will boot to dload mode.

oslo83 said:
Both volume keys held at boot will boot to dload mode.
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In my tablet It is not possible to press both up and down at the same time, is one volume button or another
I can get into the recovery mode but having the dload folder and the UPDATE file inside doesn't start the downgrade automatically. I have the usual options (wipe cache, factory reset ...)

On Mediapad T5 AGS2, you should be able to press both volume buttons at same times

Related

[Q] Help! Can not boot

Hello,
I have big problem. I tried to upgrade to lollipop version, used it for one hour and then decided to get back to kitkat. For the procedure I used some tool from killerdogKD which name is MT7-L09 Unbrick (it is a fastboot). The procedure went, phone rebooted and got stuck in boot loop (only logo is showed for few seconds). Now I can only get in fastboot and rescue mode. I've tried to flash stock rom, but without success. Any suggestions? PS. Yes, I now I am jackass and sorry for my bad English:angel:
Stock recovery installed (extracted from official KK ROM)??? 3 button procedure already tried?
Will not work. Are there no going back. He can recover only 5.1.
For the people hanging in Bootllop because they have the 4.4.X Recovery flashed.
Load zip, go to the boot loader and the two flash imgs.
command:
fastboot flash boot boot.img
fastboot flash recovery recovery.img
If both of the 5.1.
https://mega.co.nz/#!DNw13JhK!7ATC9p...G50saLGZG3vKzM
KK is not possible 5.1, just with dload the flash 5.1 again. Is indeed just about the one that has 5.1 Recovery again.
Here read next time.
http://forum.xda-developers.com/mate-7/general/mate-7-update-to-lollipop-screenshots-t3125227/page28
I have the same problem and probably caused by same thing. But I can' even enter bootloader. When phone was bootlooping, I turned it off. Then I tried to get into recovery (by holding power + volume down), but phone always shut down after Huawei logo appears (shut down with short vibration).
It does not matter when I release the buttons, I also tried the recovery (vol up + power) or the force update mode (vol up + vol down + power).
Is there any solution to this? I really hope so...
Look at my post and Liks.
Thank you Fooox1 for trying to help, but the problem is, that I can't even enter the bootloader (and your steps require that). I think that international Mate7 have different key combination for entering bootloader? Check also this: http://forum.xda-developers.com/mate-7/help/fastboot-mode-t3086531
It is true that even before I was not able to get into bootloader with vol down + power, so maybe there is just different key combination or it is not possible at all...
I think I will try to write to Huawei support.
In the bootloader you come when the power is off and you Vol - holding down, then to the PC. To turn it off properly you must Vol - and Power button until it vibrates.
Key combination is the same for all.
I know, that is what I am doing it. And I already did it with many other phones successfully, so its not like this is my first time.
I am holding down power + vol down
Phone vibrates, I am still holding both buttons
Huawei logo appears, I am releasing power button, but still holding vol down button
Phone vibrates and turn off
I also tried to release power button when phone vibrates, or not release both buttons at all or I don't know what else. Tried 100x times.
I will try to contact Huawei, maybe it is known issue. It should really be same key combinations for all devices.
Thank you.
The Mate mus but this depend on the USB, otherwise it does not come into the bootloader.
Whoa! I did it. Yes, it was connected in USB, but in quickcharge USB. I tried different one and I am in!
For some reason, it did not like the quickcharge USB port, strange.
@Fooox1: but thank you, with your last comment I got the idea to try different USB
Well, I am little bit furhter, but still not working unfortunately. I got into bootloader, I flashed the boot and recovery. Then I was trying to three buttons force update and it is still failing.
I have Update.zip in dload folder on sd card, but update is failing immediatelly...
So now, I started the three buttons update while connected to computer via USB and it is actually doing something. But it is too soon to say if it helped (43%).
can't boot too
I need your help Guy's
My Mate 7 did not start after i rooted the lollipop rom with kingroot. I tried to put back the 5.1 boot.img and the recovery.img. After that i tried to flash the ota 5.1 rom agian with the 3 bottons mode. The phone startet the Update but it get stocked by 90%. I waited ca. 10 min after i just rebooted the phone. Now the Phone starts with the Huawei Ascend sign two times and after that i am in recovery mode. I don't know what i can do now! Can anyone help me please?
Yes, I have the same problem
driver84 said:
I need your help Guy's
My Mate 7 did not start after i rooted the lollipop rom with kingroot. I tried to put back the 5.1 boot.img and the recovery.img. After that i tried to flash the ota 5.1 rom agian with the 3 bottons mode. The phone startet the Update but it get stocked by 90%. I waited ca. 10 min after i just rebooted the phone. Now the Phone starts with the Huawei Ascend sign two times and after that i am in recovery mode. I don't know what i can do now! Can anyone help me please?
Click to expand...
Click to collapse
Same here! Help!
must we send in warranty?
So it seems to me, that problem is Huawei. Once, they are using Update.APP and later Update.ZIP, not sure why.
- recovery from 5.1 is working, but it is expectin Update.APP, but 5.1 update is in Update.ZIP, so it fails immediately (with error Update.APP not found). Yes, when you connect to phone to computer, it seems that it is doing something and it will get to 90%. But it is actually doing nothing, you can even pull out the sd card and it is the same. I think it is waiting for some action from computer, but not sure which (I also tried to install HiSuite and do something with it, but no success).
- recovery from update B137 will accept Update.ZIP, but when you try to flash it you won't be able to get in it, it is not working (I also tried B127).
So now, we either need recovery, which will work on 5.1 and will accept Update.ZIP or we need update packed as Update.APP (and yes, I tried to rename it etc.). So actually, our phones are pretty ok, we can get in recovery etc., but Huawei is messing with this different formats for some reason
@Fooox1: Do you have any ideas? Maybe you have another bootloader / recovery image? How did you got the 5.1? Thank you...
Edit: maybe the problem is, that we are trying to run the update OTA (Update.ZIP) instead of full rom (Update.APP)? Is this how it is divided, Update.ZIP is just incremental update, while Update.APP is full rom? If that is the case, we will need the full rom, maybe Huawei can release it?
I have not the problem, but users in our forum. I have the boat and recovery.img from the update unzip, a user has then flashed via fastboot and sin device was running again. For him only recovery was gone after he has the Kang Recovery flashed. The Update.zip he did not need to flash.
Other users have only the boot and recovery.img flashed and then the not unpacked update.zip in a folder (dload) on the SD and these then flashed three fingers method. What also has to work.
Here is still the boat and recovery.img of 5.1.
https://mega.co.nz/#!DNw13JhK!7ATC9pAUID0VyX5N3pQwQLbb_VyuOG50saLGZG3vKzM
And update.zip
https://mega.co.nz/#!vdYlxQIA!P34e3RI-hQT1ZY2WnfOosGmkq2wlr6NViq6ehQuWN5k
I think it may help if somebody will create *.img files from Lollipop, then we might be able to flash it via fastboot (the same as it is in this MT7-L09 Unbrick). I think we will need:
boot.img - ok
cache.img
cust.img
recovery.img - ok
system.img
userdata.img
Can make you yourself. Unzip, when present therein Update.app the extension .app in change .zip and unpack. Now you have another Update.app, this you can unpack the Huaweiextraktor, you've got your files. However, it does not contain all IMGs.
You could try but the resulting Update.app to pack in the dload folder and flash. If so, then the original and encrypted.
Hallo again,
i just called the Huawei Service Center in Germany. They openend up a Ticket for me. They told me to make a factory reset and after that the Phone should boot normaly. I did that, but still the same is happening. The shows the Huawei Ascend Logo 2 times and after that i am in recovery mode again.
The only thing i can do next, is to send the phone to the Huawei Service Center and hopefully i will get it back in 7 Days.

Huawei G6-U10 stuck at logo and stuck in bootloop

I tried to flash a custom recovery and TWRP , but both are not working by pressing and holding the keystrokes : vol down + power . How else to reinstall a new rom is not ? Now press the power key phone , the phone back bootloop , just press the power + vol dow button to enter the fastboot mode . such as being solfbrick or hard brick ?
you can only install custom recoveries with an unlocked bootloader.
you can access recovery with keys, like you tried, or adb commands, or if you have root download a reboot manager app (easiest solution)
you can restore an device by downloading the firmware you had.
format your sd, place your firmware like this on your sd:
SD:/dload/update.zip or SD:/HwOUC/update.zip
(update.zip can also be update.app if you have android 4.3)
then just reboot, if nothing happens reboot to recovery and select "install zip from sd"
Huawei g6-u10
kuken_91 said:
I tried to flash a custom recovery and TWRP , but both are not working by pressing and holding the keystrokes : vol down + power . How else to reinstall a new rom is not ? Now press the power key phone , the phone back bootloop , just press the power + vol dow button to enter the fastboot mode . such as being solfbrick or hard brick ?
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Click to collapse
I'm also stuck with the same problem

Honor6 reboot loop

Hi..
I updated my honor 6 to the new marshmallow update... During the update it restarted and is in a reboot loop ever since.. Pls help
Follow these steps to install it again manually
Download your phone's latest firmware.
After doing this put the UPDATE.APP in dload folder of your external SDCARD.
Boot into bootloader mode by switching off the phone then pressing only the Vol DOWN button, and connecting it to PC simultaneously. If its looping, then connect immediately after a loop gets back you to black screen.
Switch off your phone, and press Vol UP + Vol DOWN + Power button simultaneously.
Your device will now get to the full stock firmware.
Anjalysaju said:
Hi..
I updated my honor 6 to the new marshmallow update... During the update it restarted and is in a reboot loop ever since.. Pls help
Click to expand...
Click to collapse
Flash stock ROM via dload

Problem after the update to the version 4

After the update to b820
Issue No. strangely shows
Please solution
issue number
If you want to return to stock after a failed flash please follow these steps:
Download your phone's latest firmware.
After doing this put the UPDATE.APP in dload folder of your external SDCARD.
Switch off your phone, and press Vol UP + Vol DOWN + Power button simultaneously.
Your device will now get to the full stock firmware.

3btn dont work!!!

Hi, i need some help
At this time I have the honor totally clean, without any android system. I'm trying to install a rom and when I get to step 3 of the buttons does not work. It is the original logo of honor and not out there.
tks
Try this.
DigiGoon said:
Follow the below steps, and you'll get back to stock:
Download your phone's latest firmware and extract system.img, boot.img, recovery.img, cust.img from UPDATE.APP using Huawei Update Extractor tool.
Boot into bootloader mode by switching off the phone then pressing only the Vol DOWN button, and connecting it to PC simultaneously.
Flash recovery first, using this command.
Code:
fastboot flash recovery recovery.img
Flash all other extracted files similarly firing these commands.
Code:
fastboot flash boot boot.img
fastboot flash cust cust.img
fastboot flash system system.img
After doing this put that very UPDATE.APP from which you extracted the files in dload folder of your external SDCARD.
Switch off your phone, and press Vol UP + Vol DOWN + Power button simultaneously.
Your device will now get to the full stock firmware.
NOTE: If the manual flashing doesn't works or you get any errors, then first try only the force update method, i.e Putting the UPDATE.APP from which you extracted the files in dload folder of your external SDCARD and pressing Vol UP + Vol DOWN + Power button simultaneously after switching off your phone.
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Click to collapse
goldfinv said:
Try this.
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Click to collapse
Don`t work
The 3btn still does not work
b4co said:
Don`t work
The 3btn still does not work
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What do you mean by does not work?
You can not start a forced update or forced update fails?
Is your bootloader unlocked or locked?
What were you using before the problem?
Firmware or custom rom?
Which firmware or if a custom ROM then what was the Android version?
Sent from my PLK-L01 using XDA Labs
I solved the problem in another way
After trying a thousand and one thing, the resolution to my problem was simpler than I thought.
I decided as follows:
- Having no memory card, I bought one and put in tlm
- I drew a full back to my rom, in this case a custom 6.9.1
- I put this full rom (zip file) on the memory card
- Through the TWRP did factory reset through the bootloader option
- Again by TWRP I chose installed the full rom had put the memory card
- He installed, I restart and voilá
Note that after doing this, it took a long time to set everything up. In the second logo of honor it took about 15 or 20 minutes.
It's probably due to hardware, if 3btns method don't work you can't install a fw
b4co said:
I solved the problem in another way
After trying a thousand and one thing, the resolution to my problem was simpler than I thought.
I decided as follows:
- Having no memory card, I bought one and put in tlm
- I drew a full back to my rom, in this case a custom 6.9.1
- I put this full rom (zip file) on the memory card
- Through the TWRP did factory reset through the bootloader option
- Again by TWRP I chose installed the full rom had put the memory card
- He installed, I restart and voilá
Note that after doing this, it took a long time to set everything up. In the second logo of honor it took about 15 or 20 minutes.
Click to expand...
Click to collapse
Glad you found a way to make it work
Sent from my H60-L04 using XDA Labs

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