[P8lite General] supermdmario:
COMPLETE GUIDE TO RETURN FROM ANDROID MARSHMALLOW TO LOLLIPOP ON HUAWEI P8 LITE ALE -L21

For all who want to downgrade from android 6 marshmallow to any other lower version (android

5), this and the guide that I personally have made.

BOOTLOADER MUST TO BE UNLOCKED IN ORDER TO WORK OTHERWISE IT IN NOT POSSIBLE TO RETURN.

EVEN IF FOR ME IT'S PERFECTLY WORKED, I WANT TO SAY DTAT I'M NOT RESPONSIBLE FOR ANY DAMAGE

PROVIDED TO YOUR DEVICES. YOU WILL BE ALL TO YOUR RISK

By clarifying this, we begin:

A) ALL THE FILLES NEEDED . recommend downloading everything in a folder on your desktop)

FIRST UNLOCK BOOTLOADER.(LINK I HAVE:http://www.androidiani.com/forum/modding-huawei-p8-

lite/479668-huawei-p8-lite-guida-sblocco-bootloader.html

THEN:DOWNLOAD THESE FILES.

1.official ALE-L21 V100R001C432B052 (and the unified firmware that allows downgrade.)

2.File Fix Ballong Error:

3: Huawei Update Extractor

4.ADB / FASTBOOT

5.adb.drivers.

6. mobile phone usb.

NB: FIRST OF ALL:BACK UP AND BACK UP all your data before doing any procedure (I always say)

B) Smartphone Preparation:

1. usb debugging.

a) Go to phone-and-phone settings-and click 7 times on the 'serial number' until the developer

options are activated.

b) open the developer menu and install it, then also debug usb and fitties in the same

developer menu.

c) exit the menu.

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C) Firmware Preparation:

1.Install the huawei update extractor program and open it.

2.IN Profile Leave as well as: UNKNOWN

3. click EXTRACT

4.In UPDATE FILE click on the quadruple with the 3 dots and look for the b052 firmware just

downloaded ... the file should be of type Update.app.

5.MARK(CTRL+ARROW) the following filesCTRL + click)

BOOT: img

CUST.img

recovery.img

system.img

6. Right click on one of them, and click on 'Extract Selected'

7.In the box that appears, click on desktop and then ok.

8.Install the adb / fastboot program this creates a folder, usually on partition C, called adb.

the inside should be 4 files.

9.Copy the 4 files from the desktop, which you removed them with the huawei update extractor

program and paste them into the adb folder.

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D) Firmware Restore-Step 1

1. Connect the phone off to PC.

2. Hold down the Volume Down button, press the power button until the phone enters fastboot

mode (the green robot on the display)

3. Let's wait for the driver to install. (A few seconds)

4. Look for the adb folder and click on it, on it-then, in the context menu, on the "open

command window here".

(if you do not enable this function, follow this guide: wikihow.com/Add-an-%22Open-Command-

Prompt-Here-As-Administrator%22-Shortcut-to-the-Context-Menu-in-Windows-7- and-Windows-Vista

5. the cmd.ARE OPENNING

type 'fastboot devices' without quotes, then enter.

6.If the device is correctly crafted, the message goes out:

Example: QLF1N2344b5667N- - - - -fastboot

7.example: Fastboot flash boot boot.img then enter.expect message ok.

8.dimple: Fastboot flash recovery recovery.img then enter and wait ok.

9.example: [COLOR = "Blue"] Fastboot flash cust cust.img [/ COLOR] then enter wait for ok.

10.digitiamo:

Fastboot flash system system.img

then enter and wait for the ok (this will employ at least 2-3 minutes)

11.digitiamo:

Fastboot reboot

then enter

12.We come to the mobile phone and we expect it to start completely - it will take at least 5-6

minutes.

NB: If you encounter problems with IMEI loss, do not pre-emulate. After OTA upgrade to 170,

imei will appear again.

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E) Firmware Restore - Step2

surely after the reboot, the device will be named Balong.

To resolve this problem, follow step 2.

1.EXTRACT the file ballong fix.rar.

an UPDATE file will appear: APP

2. In the root of the sd card create a folder with the name '' dload ''. without quotes.

3. Copy this file to the dload folder.

4. Go to settings-updater-menu-click on local update then on APDATE: APP.

The device installs this update in about 2 minutes and restarts after configuring everything

after 5 minutes.

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5. After the restart completes, IMEI has not yet appeared, configure a wifi connection and the

OTA 170 update will come.

6.Start and install this update.

At restart, you will have the ALE-L21C432B170 firmware. with IMEI in place and fully

functional.

This guide also ALLOWS the dual sim mode.

FOR ANY CLARIFICATION AND FOR THE ORIGINAL POST, WITH THE DOWNLOADED FILES, GO HERE:

http://contactit.blogspot.it/2016/02/how-to-downgrade-huawei-p8-lite-l21.html

NB:THE ORIGINAL GUIDE WAS MADE IN ITALIAN LANGUAGE .THIS IS A GOOGLE TRANSLATE,SO ,SORRY FOR

ANY TRANSLATION ERROR.HOPE YOU UNDERSTAND ALL THE GUIDE.