নোকিয়া ফোনের কিছু গুরুত্তপূর্ন কোড

Display software version  (কোড *#0000# or *#999#) 

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