Phone sporadiacally displays "insert sim card" even though it has a sim card inside (never been taken out). Switching off the phone and switching it on again was what i did. However recently my contact details saved on sim card "disappearing" i.e. not there at all. help

Do you want to insert other network sim or if your Blackberry Curve 8350I displaying insert sim card,if already sim card inserted.Don't worry i will help you.You can insert other network sim card in the phone by unlocking the phone from current network lock.To unlock Blackberry Curve 8350I use unlock code.Visit the site Wickedunlock.com get unlock code and unlock it easily.Then insert any GSM network sim card.If the phone displays insert sim card even though sim card is already in the phone.Please remove the sim card and replace it correctly.It is because the phone didn't detect the sim correctly.After inserting if it is display invalid sim or sim not valid message on the screen.It is locked to some network,you need to unlock it.To unlock use unlock code.Get code from online site and unlock it.

Please help me. Why "no sim card"? " start up phone without sim card "

The power offs may be from a defective battery, or dirty contacts at the battery and SIM card. The last cause would be from physical or liquid damage.

This "Insert Sim"(even though already Sim inserted means) or "Sim Error","Invalid Sim",are all problem arises means that Mobile Locked to Some Network,You need to Unlock it to use other GSM Sim Card,You can Unlock the Motorola KARMA QA1 model using the Unlock code at reliable price at this site
http://www.wickedunlock.com/motorola-karma-qa1/rs11wp9/

"Insert SIM" message is normally displayed on phones when a SIM card is not inserted on power-on or it does not detect the SIM card inserted.

Likely Causes:

1. No SIM card inserted or inserted SIM card is damaged
2. Inserted SIM card not positioned well in such a way as to make contact with the corresponding contact bridges on phone.
3. Phone locked to a specific network and can only work on other networks when the firmware version is "flashed", that is completely changed to an unlocked version.
4. The phone might be faulty (try with another good SIM, if you still get thesame message and its not one of the above reasons... it might be a transciever problem or the phone's SIM card slot's pins might be defective).

cheers.

make sure the sim card can make good contact with the phone.
Also check if it doesn't have space to slide, causing it to loose contact with the phone.

This problem is due to your phone's sim card IC malfunctioning. It may get damaged due to phone dropping gently into rough surface and its crystal structure may break due to it. for any queries mail to [email protected]

well... seem like you phone has got locked from the network may be accidently in case of stolen better check you service provider and if they say every thing is fine try to flash your mobile .it has some perticular number to flash it try these number *#7780# (password 12345)

Use a blow dryer and dont put it to close and you more than likely need a new sim card for your phone.

My phones displays the message Insert SIM Card even though it has the SIM Card.