is it possible to backup my applications?

Yes, you can backup your applications by using the All Backup application. To back-up the applications on your Huawei Mercury handset you must have an SD card installed in your phone. Once you have an SD card installed go to the All Backup application in your Applications menu. Select the Applications icon, click Backup, select/deselect your desired items, and click Backup.

Once you have upgraded the software on your Huawei Mercury, return to the All Backup application, click Applications, click Restore, select the desired file, select/deselect your desired items, click Restore, select Overwrite (if you want to replace any items on your phone) and click Ok. You will need to restart your phone before the restored data is available.

Applications can also be reinstalled by visiting the Google Play Store.