For all those who are eagerly waiting for the fully working ICS Android 4.0 firmware update on their LG Optimus 3D P920 smartphone can now easily apply the same as unfortunately there will be no more updates released by LG of Jellybean or ICS. All thanks to the custom ROM firmware developers who are working hard to come out with the stable custom ROM firmware. So, on the similar lines we will be checking out on how you can apply with the latest ICS based custom ROM. Please note that you will have to make sure that you have rooted the device. To check on whether the device is rooted or not you will have to download the “Root Checker” app from the Google PLAY Store. Just in case if the device is not rooted you will have to root the same as this is the custom ROM firmware.
Disclaimer: We should not be held responsible in any manner for any damage happens to the device which is very unlikely if you follow the instructions carefully. If you follow all the above instructions, there is unlikely that there will be any damage.
Before you proceed make sure that all the data present in your device is backed up manually with the help of below mentioned steps. Don’t backup the data with the help of LG PC Tool as it won’t be detecting the device in the custom rom firmware.
Text messages – Use “SMS Backup & Restore app”,
Phone Contacts – Sync with the Gmail application,
Call Log - Call Log and Restore
Pictures, Music, Videos, Files etc.– Copy to internal / External SD Card,
Internet & MMS Settings – Backup all the settings from the path “Applications > Settings > Wireless and Network > Mobile Networks > Access Point Names”
The USB Debugging can be enabled from the path USB Debugging can be enabled from the path of Settings > Applications > Development > USB debugging. Just in case if the device is not rooted, you will have to root the same with the help of below mentioned step.
So assuming that you have created backup of all the data and done all the above mentioned steps, you can now head over to the next step where we have summed up a detailed tutorial on how to apply this firmware update.