How to Root the Coolpad Quattro 4G (MetroPCS)

Running on the MetroPCs 4G Network, the Coolpad Quattro 4G is a smartphone manufactured by a Chinese company called Coolpad. The smartphone runs on the Android Gingerbread which is now an obsolete version of Android as most of the devices are running Android ICS or Jelly Bean. If you got this device and looking for a way to root it, look no further as we’ve the guide to root the device just below. Follow all the mentioned steps in the guide carefully and you should be rooted.

I. Before You Begin:

1. This will void the warranty of your device. You’re doing the procedure on your own.

2. Make sure your device has some good battery life left, we recommend at least 70%.

3. You should have drivers for your device installed on your PC.

II. Downloading Required Files:

1. HBOOT (Download link’s in the first step)

III. Rooting the Coolpad Quattro 4G:

1. Download and place the HBOOT file onto your Desktop.

2. Extract files from the HBOOT archive to your Desktop. Do NOT launch any file just yet.

3. Turn ON the USB debugging option on your device from Menu>>Settings>>Applications>>Development>>USB debugging.

4. Connect your device to your PC via USB cable.

5. Choose Charge only as the connection type.

6. Open a Command Prompt Window on your Desktop. To do so, press and hold the Shift button on your keyboard and right-click on any empty area on the screen, then choose Open command window here.

7. Type in following commands into the Command Prompt Window. Make sure to press ENTER after each line:

cd evoroot
adb push root/ /sdcard/
adb push root/mtd-eng.img /sdcard/
adb push pc36img/ /sdcard/
adb push pc36img/ /sdcard/
adb push root/flash_image /data/local/
adb -d install -r root/z4root.apk

8. Open the z4Root app on your device that just got installed using above commands.

9. In the app, tap on Temp Root button.

10. Come back to the Command Prompt and type in following commands:

adb shell


11. You should see a # sign, that means your device is temporary rooted.

12. Now, type in following commands in the Command Prompt to make a backup of your current ROM:

Mkdir /sdcard/nandroid/RSA-PR-BACKUP
Cat /dev/mtd/mtd0 > /sdcard/nandroid/RSA-PR-BACKUP/wimax.img
busybox sed -n /BEGIN CERTIFICATE/,$p /dev/mtd/mtd0 > /sdcard/rsa_OEM.key

13. Next, issue the following commands:

chmod 0755 /data/local/flash_image
./data/local/flash_image misc /sdcard/mtd-eng.img

14. Reboot your device into bootloader mode by typing in following command:

reboot bootloader

15. When the device boots up into bootloader mode, it should ask you whether you want to install the ZIP file. Say Yes and then go to next step.

16. The installation could take around 10 minutes, so be patient.

17. When it’s done, reboot your device.

18. Turn OFF your device and pull the battery out of it.

19. Put in the battery back in your device.

20. Press and hold the Volume DOWN+Power buttons together and then choose bootloader option.

21. Now, in the Command Prompt Window, type in following commands:

adb push recovery /
adb shell busybox Cinstall /sbin
adb shell nohup /sbin/recovery

22. You should be in Recovery mode now.

23. Choose install zip from sdcard and select the file you pushed earlier to your device.

24. When it’s been flashed, reboot your device.

25. Change the connection type from Charge only to Mass Storage by pulling the notification bar on your device.

26. Your device should be mounted as a drive on your PC.

27. Open the storage of your device on your PC and delete the file named

28. Rename the file labeled to

29. Turn OFF your smartphone.

30. While your device’s turned OFF, press and hold the Volume DOWN+Power buttons together.

31. You should enter the bootloader mode.

32. It should ask you if you want to update your device, hit Yes.

33. After your device is updated, reboot it.

34. You’re all done!

Cheers! Your phone now have root access as well as a custom recovery to flash custom ROMs. If you’ve been waiting to try out custom ROMs or root-only apps on your device, now is the time to do that!

If this procedure helped you please thank/donate to the original developers here.

If you need help with this procedure, please ask in the comments below or in the forum.

This is part of our Android How To’s. We have how to’s on rooting, loading ROMs, and tons of other tips and tricks for your specific device or for Android devices in general! For all of our Android How To’s, head here.

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  • spanky0323

    this is know to be fake unless you have sum sort of proof

    • Mahesh Makvana

      According to the source page, the above root method works perfectly to root the device. If you’ve any further queries, you may head to the original page to have a conversation with the developer.


  • Ralph

    I would need feedback from others who’ve done this to prove it works BEFORE I try it. Besides,this uses a method for HTC phones,not Coolpad Quattro.

  • steve!!

    it says error device not found?

    • Mahesh Makvana

      Have you installed the drivers for your device on your PC?

      This error often occurs when you don’t have correct drivers installed on your PC.

      I’d recommend you to first download the drivers on your PC, install them and then restart your PC and then follow the procedure. It should work fine afterwards.

  • steve!!

    C:UsersStevenDesktop>adb push root/ /sdcard/

    error: device not found


  • chris

    after running the Z4 root and doing the adb shell command, when the $ pops up and i put in su it says permision denied, help please?

    • shawn

      its fake it does not work

  • willie b

    hello everything is going fime besides gaining temp root access is there another way the apps runs says what is doing and then cuts off like its done then if you try to reopen the app its just black

  • Jennifer

    fake fake fake. dont even waste your time

  • Paige Fane

    It tells me permission denied when i type in
    adb shell


  • Dion N

    Does this work with XP machines?

  • jose

    When you are saving back up is 1 comand or 4 comands folllog by enter

  • HaitianB

    the z4root is not in my apps. how do I know that the commander put it in my phone or how do I put it in my phone?

  • multimediabze

    where can i find drivers

  • Nicky

    how do you extract the files to your desktop? lol i know i’m a really new beginner into this techy stuff

  • gustavo

    If you want to root the coolpad quattro 4g look up framaroot.apk it roots the phone almost like z4 root

  • Sophia Boisreau

    The HBOOT file is no longer there on the Metro PCS Repair’s website


    This sounds like its complicated…. I’m sure it will be easier than it looks….. I only have a few questions,,,,, what’s the true benefit for rooting? ( ha, i guess that’s the right word) next question well it’s a compound question ,how long should this process take ? should i beable to do this at a public library? thank you again and in. Advance,,,,Great site ,you all rock!

  • Romulo

    Hello friend can help me desbloqueiar these devices, I’m in Brazil, I live in san francisco, ca, use underground and at-t, I desbloqueiar this same unit and ZTE Z431-At-t help me

    • Dax Krishna

      do you mean unlock Romulo? If you want to unlock, I am guessing you’ll need to contact the mobile carrier you originally bought the phone from. They should provide you the unlock code provided your contract allows it.

  • isabel

    if i do this could i activate the phone with tmobile?

  • youknow me

    Fake if u think it’s real Google how to root HTC evo look for oldest method for HTC evo and u will find this method is for that phone