Update LG Optimus 4X HD P880 via Android 4.2.2 CM10.1 RC4 Custom ROM

Want to update your LG Optimus 4X HD P880 to the latest Android 4.2.2 Jelly Bean? It is now possible to update your device with the Android 4.2.2 Jelly Bean, however not using official Jelly Bean firmware but using CM10.1 custom firmware. CyanogenMod ROM’s are after market firmware based on the Android Open Source Project with extra contributions from many people within the Android community. The CyanogenMod team recently rolled out the RC4 which is based on the Android 4.2.2 Jelly Bean. The CM10.1 RC4 is almost the stable version and safe for daily use.  By flashing or installing CM10.1 RC4 ROM on your Optimus 4X HD you will enjoy a customized experience of latest Android version which is Android 4.2.2 Jelly Bean and many attractive features of CyanogenMod. So, If you wish to try out this fantastic and attractive custom ROM CM10.1 RC4 then read through this page to know the step-by-step procedure of installing CM10.1 RC4 custom ROM on your Optimus 4X HD.

If you don’t know then Android 4.2.2 Jelly Bean comes with various interesting features including multi-user support, gesture typing, new quick settings option, lock-screen widget, new camera app, photo sphere, improved Google Now, new daydream feature and miracast display.

Before flashing this ROM you should know that it’s a custom firmware and still going through development phase and currently tagged as BETA. That’s why, it’s very likely that it may comes with some bugs and issues that may look annoying to you. However, we all know most developer of ROMs are usually proactive and we believe all known issues will be fixed along with the development.

Pre Requisites:
As there is always some risk involve while you install anything other than what you have presently. It’s always recommended to follow our pre-requisites to stay safe.

1. Backup your important data such as SMS, Call Log, Contacts, APN and MMS settings. You can follow our Android backup guide for this. Also, it’s good idea to backup your internal memory content to external SD card, specially when during following instruction you have to perform some type of wiping task.
2. If your device turn off during the installation process unless explicitly mentioned on this tutorial then it may experience a hard brick. That’s why always check battery percentage before following this tutorial. Usually, the smartphone should have 60% or more power when you flash a custom ROM or firmware and it will be fine on 30% or more if you going to root it. Learn How to Check Battery Percentage in Android Phones.
3. You should make sure, you have installed proper USB driver for Optimus 4X HD. Visit our USB Driver Download page. If you can access your mobile content in your PC when both are connected the your already have it.
4. USB Debugging mode should be turned on if it’s disabled otherwise you can’t transfer file using USB cable. Learn: How to Enable/Disable USB Transfer on Android Devices.
5. Another thing you should note that nearly all our tutorial is for carrier unlocked and bootloader unlocked devices. You shouldn’t try to install it on a locked device unless explicitly mentioned.

If you already read and followed everything that we mentioned above then you are all set to go the next step of this tutorial which ultimately help you to flash Android 4.2.2 Jelly Bean based CM10.1 RC4 ROM for Optimus 4X HD.

NEXT STEP

We hope you already read what we mentioned in previous page which is indeed very important for you to safely install this custom ROM CM10.1 RC4 on Optimus 4X HD.

If you already have any ROM installation experience then this procedure shouldn’t bother you much. Basically you required to download ROM zip and Google Apps zip first. Then follow our below mentioned guide as it is.

We now have few quick instruction for you before you jump into the tutorial. You should remember the following:

• This ROM only tested on Optimus 4X HD. You shouldn’t flash it in any other Android device.
• This is a carrier locked device, you need to unlock it first before installing this ROM.
• The ROM installation process don’t require any root permission unless explicitly mentioned anywhere in this tutorial.
• You require a custom recovery such as TWRP or CWM recovery to install this custom ROM. We used CWM recovery in our instruction.
• You should always perform a Nandroid backup before flashing any ROM. You can restore everything if this ROM doesn’t satisfy you.
• After flashing this ROM your device may stuck on Boot or may face a boot loop. In such cases perform perform wipe cache partition and wipe dalvik cache 4-5 more times before rebooting.
• It’s always a better idea to give installed ROM 5-10 min after it boot first time to settle everything for you for a better using experience.
• If you faced a Status 7 error then its mean either you flash it on wrong device or you required to install a related kernel (if it’s a Jelly Bean ROM then you may required to install a Jelly Bean kernel first) before installing the ROM.

Installation Instruction of Android 4.2.2 Jelly Bean Based CM10.1 RC4 ROM on Optimus 4X HD

Step 1: First of all download CM10.1 RC4 ROM for Optimus 4X HD [CM10.1 ROM] and Google Apps [Filename: gapps-jb-20130301-signed.zip]

Step 2: Now, connect your Optimus 4X HD to PC using USB cable and then mount your storage first.

Step 3: Once you manage access of your phone SD card content from your computer, copy downloaded zip files to the SD card of your phone. Important: Don’t extract any file.

Step 4: Once you finish file transfer procedure, disconnect USB and then turn off your phone.

Step 5: Boot into recovery mode. To do so, press and hold Volume Down and Power button together and then press power 3 times at LG Reset Screen. You will soon see CWM recovery screen. [use volume buttons to scroll and Power button to select]. You can also try this: Recovery Mode without Key Combination.

Step 6: As we mentioned earlier, it’s important to perform a Nandroid backup of your existing ROM that you can restore later if this new ROM not work or you want to go back. To perform a Nandroid backup, select Backup and Restore, then on the next screen, select Backup again. Go back to main recovery menu after backup process done.

Step 7: It’s time to perform some wiping task to eliminate clash between new ROM and previous ROM. To do so, first select wipe data/factory reset, then select Yes on next screen to confirm your action. Wait few minutes till the data wiping process done. Now come back to CWM recovery main menu. Select wipe cache partition and after wiping cache partition process completed, select Wipe Dalvik Cache under advance option to perform Dalvik cache wiping. When all done, it’s safe to move into next step.

Step 8: Select install zip from sdcard, then select choose zip from sdcard. Now, locate the CM10.1 ROM zip file that you copied earlier in Step 3 and select it by pressing Power button. Confirm installation on next screen and soon the ROM installation procedure start.

Step 9: Once the ROM installation process end, repeat the step 8 but choose gapps-jb-20130301-signed zip file instead of ROM zip to install the Google apps package.

Step 10: When all done, you should go back to the main recovery menu and select reboot system now to reboot the smartphone. The phone will then boot into this new ROM, however you should note the first boot usually take time usually about 5 minutes.

Returning to Previous ROM: To go back to your previous ROM, boot into recovery, select backup and restore then restore your previous ROM by selecting it from the list.
Congrats! Android 4.2.2 Jelly Bean based custom firmware CM10.1 RC4 is now installed and running on your Optimus 4X HD. Go to Settings –> About phone to verify this update. Share your update experience with us below in comment.

SOURCE droidnoob.com