Samsung GRAND DUOS smartphone can now be updated with the Jellybean 4.2.2 Firmware which is dubbed as XXUBMF2. Though this firmware is not yet pushed by Samsung officially, this can be applied on all Samsung Galaxy GRAND smartphones. Before we proceed on to check on what are the instructions to apply this firmware update, you will have to make sure that you have followed all the quick pre requisites which are mentioned below.
Note: Please note that this is the Official firmware released by Samsung and is not a beta or custom ROM firmware.
Quick Pre Requisites:
- All the data in your Samsung Galaxy GRAND smartphone should be backed up with the help of below mentioned steps. Don’t backup with the help of KIES as it may not help you restore the data back.
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”
- From the path “Settings > Applications > Development > USB debugging” enable the SUB Debugging Mode. Minimum charge left in your phone is 30% or else there is a risk of device getting turned off in the middle of firmware update increases which may even brick your Galaxy S3.
Disclaimer: Follow all the instructions mentioned in this article as if there is any damage caused due to not following instructions then we shall not be held liable or responsible. Just in case if you face any issues then we will try our level best to address the same.
Let’s proceed to the next step where we have mentioned a detailed guide on how to apply with this firmware update.