How To Update LG Optimus Black P970 To Android JB 4.2.1 | CM10.1 Nightly Custom Rom

Update LG Optimus Black P970

How To Update LG Optimus Black P970 To Android JB 4.2.1 | CM10.1 Nightly Custom Rom

LG Optimus Black users can now update their phone to the latest Android Jelly Bean 4.2.1. Though LG has left this phone from support, the developers community have kept features alive for this device. You can successfully update your LG Optimus Black to Android Jelly Bean 4.2.1. Make sure you follow all the steps in this tutorial to successfully update your device to android jelly bean 4.2.1.

Please Note–>> Since this is a nightly build Rom, after installing it on your phone, you may get some serious errors on your device. To recover from this errors, you will have to port back your device to the original stock Rom.

Before You Proceed–>>

  • This tutorial is intended only for LG Optimus Black with model number P970. Trying this tutorial on any other device or any other variant of LG Optimus Black.
  • Make sure you have a recovery image like Clockworkmod installed on your device.
  • Ensure that you have USB drivers for your device installed on your PC. If you don’t then click here.
  • Enable USB Debugging mode. Go to Options > Applications > Development > USB Debugging.
  • Backup all your personal information on your device.
    Use AppBak to backup all your apps.
    Use SMS Backup and Restore to backup messages.
    You can backup your contacts using gmail .
  • Charge your device battery with atleast 75% of power.

How To Update LG Optimus Black P970 To Android JB 4.2.1 | CM10.1 Nightly Custom Rom

  1. Initially you need to download the CM10.1 Custom Rom and save the zip file to a convenient folder on your PC.
  2. Now download Google Apps and extract it to a convenient folder as well.
  3. Connect your device to your PC via USB cable.
  4. Copy the downloaded file on the internal SD card of your phone.
  5. Now turn off your phone and unplug the USB cable.
  6. Now you need to boot into Recovery mode. Now to get in the Recovery Mode, Switch ON the phone and wait till the 4 LED lights start to flash. As soon as they start to flash, press the G-button repeatedly on your phone until the phone reboots and you are in the CWM Recovery Mode.
  7. Now select ‘ Wipe data/Factory reset and confirm on the next screen by pressing power button.
  8. Now select ‘ Wipe cache ‘ and confirm by pressing power button.
  9. Now select ‘ Advanced –> Wipe Dalvik cache and confirm by pressing power button .
  10. Then select ‘ Flash ZIP From SD Card ‘ and then select Choose ZIP From SD Card and browse to the CM 4.2.1 Rom zip file that you copied to your device’s SD card in step 4.
  11.  Select the file and confirm by pressing power button. The installation will start.
  12. Once the installation is finished, install the google apps by following step 10.
  13. When you finish installing google apps, select Go back and select Reboot system now.
  14. Now your device will boot with the whole new Look and feel of Jelly Bean 4.2.1.

That’s it!! Your LG Optimus Black P970 is now updated to Android Jelly Bean 4.2.1 !!

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About Acquin Dmello

Acquin is a Computer Engineering student, web developer, SEO learner and a dedicated Blogger. He specializes in Programming Web Applications and loves tweaking with Smartphones. Follow him on Twitter.