With better battery life and simple minimalistic design, it now seems that Parandroid custom ROM firmware for Samsung Galaxy S3 smartphone seems to be the best custom ROM firmware as of now. So, before you apply this update, you will have to root the device, to check on whether your Galaxy S3 is rooted or not, check the same with the help of Root Checker app which can be downloaded from Google PLAY Store. So, before proceeding to check on what are the instructions with which you can apply this update, you will have to go through the list of pre requisites mentioned below;
Note: This is not an official Jellybean 4.3 Android OS released by Samsung and should be applied only to I9300 variant.
Quick Pre Requisites:
- Not with the KIES or ROM Manager, create a backup of all the data with the help of below mentioned manual steps.
SMS – Use “SMS Backup & Restore app”,
Contacts – Sync with the Gmail application,
Call Log - Call Log and Restore
Images, Songs, Videos, Files – Copy to internal / External SD Card,
APN and MMS Settings – Note down from the path “Applications > Settings > Wireless and Network > Mobile Networks > Access Point Names”
- As this is the custom ROM firmware, you need to make sure that your device is rooted. Just in case if your phone is not rooted, you will have to root the same with the help of below mentioned steps
- Enable the USB Debugging Mode in your computer from the path “Settings > Applications > Development > USB debugging”. Make sure that your Samsung Galaxy S3 is left with the minimum of 40% battery or else the device might just get turned Off in the middle of firmware update.
Disclaimer: We should not be held responsible or liable in any manner for any damage caused to the device which is very unlikely if you follow the instructions carefully mentioned in this article.
Assuming that you are done with all the above mentioned steps, proceed to the next page where we have mentioned the detailed guide on how to apply with this firmware update.