| Code | Function | 
| *#0000# or *#999# | Display software version | 
| *#7780# | Reset all settings, then enter the special code (12345 by default). | 
| *#7370# or *#62209526# | Hard reset: reset all settings and erase all data, then enter the special code (12345 by default). | 
| *#92702689# | Service Menu | 
| *#746025625# | Shows if the "sim clock stop allowed" mode is supported and activated. This is an energy saving feature. | 
| *#67705646# | erase provider logo | 
| *#7370925538# | erase suitcase (including password) | 
| *#2820# | display Bluetooth device address | 
| *#62209526# | display MAC device address (only for devices with WLAN/WiFi) | 
| ##634# | Start diagnostic tool (windows phones) | 
| press # long | turn on/off profile silent | 
| press * long | turn on/off Bluetooth (only E models) | 
 
 
 
 
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