How to Downgrade or Unbrick Honor 6 From Android M

Recently Huawei released Android M stable. Some users bricked their device and some are need to downgrade their device to lollipop. Those who have random bootloop and not able to downgrade or factory reset please follow the below procedure carefully. Its tested and working fine.

Warning: We and Huawei are not responsible for any data loss and irrecoverable damage to your device. Users requested to try on their own risks. but we will help you to recover your device.

Tools needed:

  1. Adb files- [sociallocker]Click here [/sociallocker]
  2. Marshmallow boot & recovery image-[sociallocker] Click here [/sociallocker]
  3. Marshmallow downgrade pack for 803-[sociallocker] Click here [/sociallocker]
  4. Marshmallow downgrade pack for 804 & 805-[sociallocker] Click here [/sociallocker]
  5. Marshmallow downgrade pack for 810- [sociallocker] Click Here [/sociallocker]
  6. B560 Lollipop firmware- [sociallocker] Click here [/sociallocker]

Credits: Yash and other Friends in Mobile forum.

PROCEDURE:

For Bricked Devices (Both locked and unlocked bootloader):

Note: Users those who are bricked and  boot-loader locked devices please skip the steps from 3 to 7

  1. Download all the necessary files.
  2. 803, 804&805 and 810 users requested to use respective downgrade pack.
  3. Copy the boot.img and recovery.img to adb folder.
  4. Boot your device into Fastboot mode(volume down and attach the usb with pc and phone)
  5. Run command prompt. And locate adb folder. Run fastboot.exe
  6. Enter the following command to flash boot.img (fastboot flash boot boot.img) and to flash recovery.img (fastboot flash recovery recovery.img)
  7. Once successfully flashed do not restart.
  8. Extract the zip file and or copy the update.app from downgrade pack into “dload” folder in SD.
  9. Now partially insert the micro SD in mobile SD port. Then press volume+,volume – and power button simultaneously. Once u seen installtion screen immediately press micro SD completely into the port. Several tries needed to insert on time.
  10. After successful installation of downgrade pack then flash B560 firmware in same manner. (Follow the steps 6 and 7)
  11. After successful installation now device completely unbricked.

For Normally working devices (Both locked and unlocked bootloader):

Note: These following steps for normal working marshmallow users and not for bricked devices.

Method 1:

  1. Download all the necessary files.
  2. 803, 804&805 and 810 users requested to use respective downgrade pack.
  3. Extract the zip file and or copy the update.app from downgrade pack into “dload” folder in SD.
  4. Then press volume+,volume – and power button simultaneously.
  5. After successful installation of downgrade pack then flash B560 firmware in same manner. (Follow the steps 3 and 4)
  6. After successful installation now device completely downgraded.

Method 2: ( Alternative for 3 button flash)

  1. Download all the necessary files.
  2. 803, 804&805 and 810 users requested to use respective downgrade pack.
  3. Extract zip file and or copy the update.app from downgrade pack into “dload” folder in SD.
  4. Open the dialler in device and dial *#*#2846579#*#* you will get project menu.
  5. Select 4th  option SD card upgrade it will power off phone & flash downgrade pack.
  6. After flashing successful it will reboot.
  7. Then put B560 extracted full package into dload & repeat the steps 4 & 5.
  8. After successful installation now device completely downgraded.

Note:

  1. If phone reboots randomly just press power button for 10 secs after short vibration press volume down and attach the usb to boot into fastboot.
  2. After short vibration press all the three buttons to enter into force update or 3 button flash.
  3. If you dont have enough charge pls plug your mobile with charger and do 3 button installation.

 

46 COMMENTS

  1. the downgrade update package is just 20kb…..aslo i follwed your all steps but when i update the b550 firmware it doesnt update that package

    • Need more info. That in which version u r in? Pls use respective downgrade pack to get successful installation?. Partially insert the sd and boot. Once u seen installation screen insert the sd further

  2. Can you please explain what step 10 is for bricked users? Do you want me to flash the b560 image files individually or use 3btns method? It’s a bit unclear.

  3. Hi my bootloader is locked i install b810 but phone not open honor logo downgrade pack is work but b560 app is not install can you help me my phone l04 thanks…
    Sory my bad english

  4. I am running the Indian Beta Version C675B803. And I want to switch to europe-lollipop Version C432B521…will this work too?

  5. Hi. i did a terrible mistake… i have lollipop 5.1.1 installed on my huawei honor 6 and i used the update Marshmallow 6.2.1_to_ver_6.3.16. now my phone is locked at logo screen. what can i do to go back to lollipop? Thank you

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