Says insert sim card when there is one in it

Take our phone to a service provider that has your type of phone and ask for assistance.

Did you mean your phone shown no sim card inserted even your sim card present on your phone?
Yes,Means,There are three possibilites to get this type of issue.
1.There may be a problem in your Sim card so try another one.
2.Check your Sim whether it's properly inserted or not
3.Your mobile is locked to particular network provider.
If your problem persists,After trying first two ways means definitely Your mobile phone is restricted by some network so try to unlock your mobile phone.For unlocking you can approach your service provider or else try to buy an unlocking service from any one of the online unlocking service provider like
MobileUnlockSolutions.com

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.

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/

The SIM card may not be making proper electrical contact in the cell phone.
Try removing the SIM card and cleaning the SIM card contacts and the SIM card contacts in the cell phone with methylated spirits. Then replace the SIM card in the cell phone.

make sure the sim is inserted correctly if it still wont recognise then your sim card is damaged or some of the small wire points are bent down to far to connect with the sims reading bars

Try the SIM in another phone. SIM cards go bad.
If it doesnt work in the other phone it will have to be replaced. I
THis can also be caused if you set up a PIN code and it was entered in wrong too many times and you did not use the right PUK code to unlock it. THis will permanently damage a SIM card.
f it does work in another phone then your phone is no longer able to read SIM cards. Check with the manufacturer for warranty info.

1. its mainly due to Sim card get older and bend. So it cannot seat well in its slot.
2. Remove the Sim card. Check whether Sim card is normal. Due to the dust on the Sim also can cause this problem
3. May be the phone's Sim slot pin allignment problem. Check whether the all pins are good.
4. Some times when phone falls to the ground makes the Sim move from its slot. So also this problem occurs.
5. if problem persists even after these diagnosis methods.
6.Contact service centre for further Rectifcation. thank you

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)