My sim is registered but not have signals in my nokia 5130

first check network type u make it automatic and if its shOw no signaL bar u check if ur sim registration is completely done BY providers. I hope it will work

nokia 5130c-2 mobile imei number corrupted, so sim registered failed problem is coming on display..........
please solve this problem.....

Try to get it from online providers..

You can try to do these things to solve your issue. I saw this at this link:
http://wiki.answers.com/Q/How_do_you_format_nokia_5130-c
I hope it helps.
1) Turn off your Nokia 5130-c2 phone

2) Remove your SIM CARD and your MEMORY CARD

3) Hide your SIM CARD and your MEMORY CARD in a safe place!

4) Turn on your phone while pressing: Ke(3) + Green call button + *

5) Your Nokia 5130-c2 is now formatting, please wait for a while...

6) When done, reinsert back your SIM CARD and yor MEMORY CARD in to your phone

7) There you go! your code is now set to (12345)

Ifyour mobile phoneis lost or stolen you can inform your cell phone provider with your IMEInumber. Your cell phone provider can then put the serial number on a shareddatabase. This list stops this particular phone from registering on any networkand will be useless for anyone even if the mobile phone's SIM cardis changed!

If you're encountering signal problem with Nokia 5130 try pressing the pound sign and press call. Allow at least 2 to 3 minutes to process your signal request. If the problem persist try checking the signal coverage of your network provider your location might be a dead signal zone. If the above steps has already been done and problem still occurs. You have to open the unit and check for the connection of the antenna to the board. The two most be properly connected to receive a high signal.

Initially try by cleaning the sim card slot.
The insert sim card happen due to the problem in Sim card holder slot and the IC related to it.Contact the service center they will check the sim card slot and provide you a solution either by cleaning the slot and PCB board or replacing IC

Here are the tips to do follow my steps carefully:

1) Turn off your Nokia 5130-c2 phone

2) Remove your SIM CARD and your MEMORY CARD

3) Hide your SIM CARD and your MEMORY CARD in a safe place!

4) Turn on your phone while pressing: Ke(3) + Green call button + *

5) Your Nokia 5130-c2 is now formatting, please wait for a while...

6) When done, reinsert back your SIM CARD and yor MEMORY CARD in to your phone

7) There you go! your code is now set to (12345)

check your sim card service provider and also try another sim

You SIM card is inactive. You have to make at least 1 paid call every 6 months otherwise your sim is deactivated. If it's new sim has to be activated.
Rate me if helped.Thanks.