Note: In the process of the firmware update, there will be some data which will be erased which you need to restore the same by following the tips which were mentioned in the pre requisite instructions in the last page. Please note that its utmost important to follow this step or else you will have to face force close errors. Please note that you will have to ensure that you don’t select any other options or else there is a high probability that you may end up bricking up the phone. After entering the recovery mode, you will have to choose the options Wipe data/factory reset and also you need to select Wipe Cache partition and then reboot your device by selecting reboot system now option.