My nokia 3110c is blinking n switch off after the logo appear

Pblm is phone ristricted with cyclone box ihave udated sp lock but solution ok then mobile wille be offing 5min .but i on only on ning mobile what is the solution sir

Those who still have this restarting problem on Nokia 3110c ... Im telling the solution again, step by step. It ll work . you dont need to go 4 the firmware v5.05 If ur phone restarted 3 or 4 times and switched off automatically. Try this method 1] Remove the battery and Micro SD card 2] wait about 5 minutes 3] Then switch On the phone WITHOUT the memory card
Now ur phone working well without restarting
4] Then you must restore Factory settings frm the Settings Menu [default security code:12345] {i know most of people have done this thing,but remember u have 2 go with the correct order.Unless it will not work.OK}
5] Now apply a theme. The theme's size should be below 100kb
6] Now ur phone working fine without the Micro SD
7] Then wait about 5 minutes and Switch off ur phone
8] Remove the battery and insert the Micro SD {Don t Format the memory card}
9] Switch On ur Nokia 3110c phone. 10] Now Keep ur free Phone memory space [Not the memory card's free space] between 470kb - 499kb.
Now surely ur 3110c working fine about 5 months.During these time u can 1] Send/receive any file via bluetooth. 2] Enjoy Music,video, GPRS,Yahoo Go .....etc 3] Also u can Update music library anytime.