I lost the SIM door key. How can I now unlock and pull out the SIM holder? - Nokia FAQ
You can use a paperclip as a tool.
Is there backlight under Call key and End key? - Nokia FAQ
No.
How do I change shortcut keys on my Nokia device? - Nokia FAQ
Select Menu > Ctrl. panel > Settings > General > Personalisation > Standby mode > Key shortcuts > Left selection key and Right selection key.
How do I change the sensitivity of the Optical Navi key on my Nokia device? - Nokia FAQ
Applies for Nokia E72 and Nokia E73 Mode:
Select Menu > Ctrl. panel > Settings > General > Personalisation > Optical Navi key > Sensitivity > High, Medium or Low.
Why does the side key seem to get stuck after I put the back cover on the Lumia 520 phone? - Nokia FAQ
The side key (camera key, lock key or volume key) could get stuck under the back cover. Remove the cover and push the side key from inside of the cover to outside to make sure it is in the right position. Put the cover back and try again. Be careful that you do not touch the side keys when placing the cover on the phone.
What happens if I press Call or End key during the touch screen calibration? - Nokia FAQ
If the touch screen calibration is interrupted by pressing Call key or End key, the applied settings may cause instability when using the touch screen or the Call and End keys. In such situation, the calibration should be done again.
How do I manage the scroll key light settings on my Nokia device? - Nokia FAQ
Select Menu > Ctrl. panel > Settings > General > Personalization > Notification lights.
When you miss a call or receive a message, the scroll key starts blinking to indicate the event. To set the blinking time and which events you want to be notified, select Notification light.
When you do not use the device for a certain period of time, the scroll key starts blinking slowly as if it was breathing. To turn the breathing light on or off, select Standby br.light > Breathing light.
Where is the camera key on my Nokia E5-00 device? - Nokia FAQ
Nokia E5-00 device has not a separate camera key. Start the camera application and press Navi key to take a picture.
Why can't I turn the screen light off when pressing lock key in the lock screen? - Nokia FAQ
In the lock screen, press the lock key, then the phone screen lights. Now you can swipe the screen left or right to unlock the phone, and then press the lock key to lock it again. You can also wait a short while for the phone to lock automatically.
What is the SIM card icon on * key on Nokia C1-00 phone? - Nokia FAQ
It is a shortcut for switching SIM cards. Press and hold the asterisk (*) key, and select the desired SIM card.