Nokia Lumia 521

PUK Code Unlock ....................................................................................................................................... 36
SIM PIN ....................................................................................................................................................... 36
Change SIM PIN ...................................................................................................................................... 37
Turn on / off SIM PIN ............................................................................................................................... 37
Cache Partition ............................................................................................................................................ 37
Wipe cache partition ................................................................................................................................ 38
Master Reset ............................................................................................................................................... 38
Master reset from settings menu ............................................................................................................. 38
Master reset with hardware keys ............................................................................................................. 38
Safe Mode ................................................................................................................................................... 39
Battery ......................................................................................................................................................... 39
Insert / remove battery ............................................................................................................................. 39
Battery Life .................................................................................................................................................. 41
Battery saving mode ................................................................................................................................ 41
Battery saving mode settings .................................................................................................................. 42
Buttons ........................................................................................................................................................ 42
Icons ............................................................................................................................................................ 44
IMEI ............................................................................................................................................................. 45
Liquid Damage Indicator (LDI) .................................................................................................................... 46
Backlight ...................................................................................................................................................... 47
Brightness ................................................................................................................................................ 47
Timeout .................................................................................................................................................... 48
Home Screen .............................................................................................................................................. 48
Add widget or shortcut ............................................................................................................................. 48
Delete widget or shortcut ......................................................................................................................... 48