[Android One (First-Generation) Cross-Device Genera] pnsdhrn:
Dear Android 6.0,have you succeeded in rooting your Marshmallow device?

And Dear Lightening,finally I succeeded in rooting my unrooted MM AQ 4501 with Stock Marshmallow.

For the sake of all my fellow friends who are in the look out of a feasible method of rooting I am furnishing below the procedure by which I became successful.

"1.At first I installed and opened Android One Toolkit in my PC.The phone is connected to the PC with USB Code.On detecting it by the Toolkit I clicked the UNLOCK button in the Kit and waited for the message of Bootloader unlocked.The I disconnected the phone fro PC and closed the Toolkit.

2.Then I downloaded ADB & Fastboot drivers and extracted them in a folder in the Desktop of my PC.Also downloaded CWM recovery.img for AQ4501 and placed it in the folder above in the Desktop.Then I downloaded Monarch Kernel for Marshmallow and placed the Zip in the SD card of the phone. Also dowloaded SuperSu 2.50 Zip and placed in the SD Card.

3.Now I opened the ADB folder on the Desktop ,pressed Shift key + Right click in the empty space inside the folder and selected the Open Command Window.

4.I connected the phone using USB with the PC. In the Command window type the following command

adb reboot bootloader

and press Enter Button.Now the phone is in the bootloader mode.

5.Type the following command in the Command Prompt to install CWM Recovery.

fastboot boot recovery.img

and press Enter Button.Afterwards the phone will reboot to system.Now you installed CWM Recovery .Disconnected the phone from PC.

6.Now I turned off the off and entered into bootloader mode by pressing Vol Up and Power Buttons simultaneously.Once in Bootloader mode,navigated to recovery and selected it by pressing Vol Down.Now we will be in CWM Recovery.But most probably instead of entering into CWM Recovery,the phone will be stuck with dead Android Boot logo.In that case press the Power button long till it reboots into system.Then connect the phone with USB Code with PC,open ADB folder and enter into the Command prompt.There type

fastboot boot recovery.img

and press Enter Button.Then the will enter into Recovery.Ther select the option of Install zip and then select the options of Install from ext sd card.From it choose Monarch Kernel and flash it.Once it installing of Kernel is successfully completed flash the SuperSu Zip also.Afetr the installation of SuperSu,Go back and reboot.Now the phone is rooted successfully.

n order to very whether the phone is rooted,download RootChecker app from Playstore,install and open it.Clck on Verify Root and see the message of Rooted Successfully.

7.In the case of CWM Recovery most probably we can't enter directly in Recovery mode by pressing Vol Up and Power Button compo.In order to overcome this download 2.8.7.0 TWRP Recovery zip for AQ4501 and place it in the SD Card of the phone.Then enter recovery mode by the above ADB method.Then in the Recovery choose Install zip and flash the TWRP zip.Once flashing is completed,reboot the phone.Now the CWM recovery is replaced by TWRP and you can directly enter into it by Vol Up and Power Button Compo."

Hope this will help all my friends.Thank you.