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LG Optimus P970 Black : Upgrade to Jellybean 4.2.1 CM10.1 Custom Firmware

LG Optimus P970 Black : Upgrade to Jellybean 4.2.1 CM10.1 Custom Firmware

by TDC TeamFebruary 12, 2015

LG Optimus P970 Black users can now upgrade with Android 4.2.1 Jellybean CM10.1 ROM firmware. Everyone knows that CyanogenMOD ROM is one of the most used custom ROM. It comes with new customize flavor which have better performance and many new features. So install the Jellybean 4.2.1 custom ROM Firmware and enjoy your smart phone with amazing performance. It supports multiuser gesture typing,new quick setting, lock screen widget, new Camera apps, improved Google Now,mira-cast display and many others.


Important Note: This Firmware is taken from a very reliable source and is completely safe to install on your device.Yet we would advice you to go for this upgrade at your own risk as neither this site nor the author can be held responsible for any problem in upgradation such as bricking of Device. However, this happens only in rare cases.Also you would lose warranty of the hardware(if any) after upgrade.

To make it easier for layman users, the entire upgradation process has been divided into two easy to understand parts:

  • Pre-Upgradation Steps.
  • Final Upgradation Steps.

Please follow all the steps with extra care and donot miss even a single step.

Pre-Upgradation Steps for LG Optimus P970 Black

  • First of all make sure that your device is LG Optimus P970 Black.(Check at Settings> About Phone). Donot try to run this upgrade on any other version.
  • Also, this upgrade can only be executed on unlocked boot loader devices, and is not for devices which have model number P920.
  • We would advice the users to first take a complete backup of the existing ROM by using Nandroid Backup and Restore App.
  • Important data such as SMS, Contacts etc.can also be backed-up on PC or any other device .
  • Also make sure that your LG Optimus P970 Blackis at-least 55% charged as the upgrade will be done on the battery power.
  • Next, we would recommend to disable all the anti-virus(if any) which are running on your Device. Also uninstall the Kies package from the computer which will be used to upgrade.
  • Now th important step,enable USB Debugging on your cellphone (The option available at Settings > Applications > Development > USB debugging ).

    Sasmung Galaxy S3

  • With this, your LG Optimus P970 Black is now ready for upgradation to Jellybean 4.2.1 CM10.1 Custom Firmware.

Final Upgradation

  • First of all, download the CM10.1 4.2.1 Jelly Bean ROM For LG Optimus p970 Black and Google Apps smartphone on your Laptop/PC.
  • After the download is done, transfer the Zipped folder to the SD card of LG Optimus P970 Black using USB cable.
  • Now disconnect your LG Optimus P970 Black from PC/Laptop and turn it off (so that it can be started into recovery mode).
  • Now Press Volume Up button + the Home key button (the middle button). Keeping holding them and switch on your Mobile using Power Key.
  • Your device will now boot in recovery mode. If it is not, try repeating the above steps.
  • Now in the recovery mode, Select “Wipe data/factory reset” >> “Wipe Cache partition”.
  • Then select “install zip from sd card” >> “choose zip from internal sd card”.
  • Then select the zipped folder you’ve downloaded (First ROM package then Google Apps) and your Phone will start upgrading.
  • After the upgrade is completed, just restart your cellphone.

With this, you’ve successfully upgraded toJellybean 4.2.1 CM10.1 Custom Firmware. Enjoy your LG Optimus P970 Black with more efficiency. If you face any issues during upgradation, feel free to ask us in the form of comments below.

About The Author
TDC Team
Team TDC is the team of 6 people behind TheDroidCity. We aim at answering every query.

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