- do not use live wallpapers
- Remove some desktop gadgets
- turn off background applications
- restore factory settings
- Pay special attention to that before restoring factory settings to be backed up in advance, if not ahead of backup data in the phone will be lost.
Go to -> Settings ->Storage -> Press “Unmount SD card”. After the phone finishing unmounting process, press “Mount SD card”. You’ll find that the apps appear again in the Menu.
A Memory Expansion, you can store and play media files stored in the SD card via card slot with the device. Also you can transfer the application in to SD card so that more system memory is available and device will work much faster .