[Android General] Zauq:
Hello Friends :cowboy::cowboy::cowboy:

A little background first !!

QiKU Q Terra (CP8692_I02) which was sold in India and came pre-installed with 360 OS v21, Android 5.1. The OEM went back to China hence there haven not been any software update for our device. I had been trying to boot latest Chinese 360 OS on Indian Qiku Terra to get updates but after flashing the Chinese version the device would not boot at all and would get stuck in fastboot mode. To revive the device, I had to flash back the V21, I had tried several times but no success.

I even got in touch with the 360 OS engineers over mail with the help of an administrator of Qiku Chinese forum but the engineers said it's not possible to flash Chinese 360 OS on Indian Qiku Q Terra.

I had also been trying to root QiKU and I was able to figure it out all recently.

Check out my post -- https://xdaforums.com/android/gener...i02-unlock-t3493636/post69455878#post69455878

This tutorial is also useful for users of CP8692_M02 who had flashed the v21 on their devices and now are not able to go back to CP8692_M02.

Warning !! Try this own your on risk although it's very safe if you follow the instructions without missing any steps. Don't blame me if you still manage to kill your phone and loose your job :laugh::laugh:

Let's begin !!

Just ensure your device bootloader is unlock before you follow the instructions as it's required to boot 360 Chinese OS on the Indian QiKU.

Download the latest firmware and flash the same with YGDP or Qiku Download Assistant tool. When finished, the device won't boot and still be in fastboot mode. Now boot TWRP recovery from your pc, go to the folder where you have the TWRP recovery and press shift and right click and select "open command window here" and type the following

fastboot -i 0x1ebf boot (recovery name).img

This should boot TWRP on your device.

You can also flash TWRP recovery if wish to,

fastboot -i 0x1ebf flash recovery (recovery name).img

Now boot TWRP

fastboot -i 0x1ebf boot (recovery name).img

When in recovery mode you can use cmd to extract params partition which contain your device model name. Open cmd on your pc and type the following command

dd if=/dev/block/mmcblk0p30 of=/sdcard/params.bak

Once done, you'll have a file name params.bak on your phone's internal memory, copy the same to your pc. Download NotePad++ and install it, link - https://notepad-plus-plus.org/

Only use NotePad++ to edit the params, don't use NotePad. Plus make a copy of your params.bak file and keep it somewhere safe in case you mess up with original params file.

Right click on params.bak and open it with NotePad++, now search CP8692. The device model name would be CP8692_I02 just change I to M and save the changes, now it should be CP8692_M02.

The system partition size is not enough to flash Gapps hence you need to use TWRP recovery resize option.

In TWRP recovery and select > Wipe > Advance Wipe > System > click FS Option > click Resize FS now you shall have more free space in system partition

In TWRP now click reboot then click bootloader, in bootloader press volume up for fastboot mode. On pc open cmd in the folder where you have params.bak saved and type the following command:-

fastboot -i 0x1ebf erase params

fastboot -i 0x1ebf flash params params.bak

fastboot -i 0x1ebf reboot

If everything went well your device should boot Chinese 360 OS, Android 6.0.1 normally.

Now flash modified Gapps in TWRP which you have downloaded. The modified Gapps has Gmail & Hangout beside core apps and rest you can download from play store later.

If you flash bigger Gapps, the device will not boot or it shall be in bootloops coz of Gapps size and if you don't flash Gmail and Hangouts with the modified Gapps and download the same from Play store then it would give you connection trouble.

In case you wish to root then flash SuperSU.zip in TWRP.

Back to the booted device:-

To Activate VoLTE, download QuickShortcutMaker app from play store. Open the app and locate MBN test > click on the dropdown menu > click Try > Tick Volte_OpenMkt-Commercial-CMCC > and last click Activate.

Close the app and go to phone setting > Call settings > and enble VoLTE and you're done. You should see HD sign in the status bar of your phone. Now you can enjoy VoLTE calls.

Download the latest 360OS 2.0 V18 stable version: http://pan.baidu.com/s/1slCmsKP password: i65r

Follow the tutorial to download from Baidu without log-in and download client - https://www.youtube.com/watch?v=cigJh9jg4-c

Download modified Gapps and supersu.zip - https://drive.google.com/drive/folde...ElFemQwTTFXcTQ

Credits:

Goes to me [MENTION=5789938]Zauq[/MENTION] for figuring out unlocking bootloader, rooting, modifying TWRP for cp8692_I02 etc. Without the unlocked bootloader the above was not possible.

Goes to [MENTION=7898774]cuongvietnam[/MENTION] for instructions to modify params and flashing the same and also about the Gapps size issue

Have Fun :good::good::good: