You need to be careful when taking memory card outside from the phone’s case. Ones took the memory card of Nokia 5800 out the side while it was turned on and his phone has the screen problem. Even after locking the keypad it won’t time out, of course that condition will waste too much battery energy. He’s tried to resolve it by restoring okia 5800 the factory settings and even using Nokia software updater to update Nokia 5800 to the latest version but these ways still can’t fix the problem.

If you have the similar problem on Nokia 5800 screen, here’s below the solution you can try to do:

- Make sure to lifted Nokia 5800 SIM lock. This useful to make use SIM cards from competing networks.
- In case you can’t lift the phone, you can ask Orange for written permission to debrand the phone and install generic Nokia firmware
onto it, you might be charge for this service.
- Now you can take the unlocked Nokia 5800 phone and written permission to your nearest Nokia Care Point. There are many important things of your phone will be change such as phone’s product code, update it with generic, Nokia firmware and print out a new label for your battery compartment reflecting the changes. You’re will be charge for this service too.