How do I empty my sim card ?

It sounds like the SIM is corrupted. You may have to format it and start over.

you will need to configure the cell to select both 1&2........on your cell (settings) choose both sims and you should be able to rename both sim cards

and even then only one sim will work at a time (yes you will get text and/or message on the other sim while using the other)

If you've just put your SIM card in your Nokia 5800, you may have noticed a flashing envelope icon at the top of the screen.
This icon indicates that the SIM card's own text message storage is full. This doesn't actually cause problems on the 5800 because it stores its messages in the phone's own memory, but the envelope can look a bit annoying.
To get rid of the flashing envelope:

1. On the standby screen press the white menu button.

2. Select "Messaging"

3. Select "Options"

4. Select "SIM Messages"

5. Delete some or all of the messages from the SIM messages folder using the Options menu.

This should make the flashing envelope go away. You only have to do this once because when the SIM card is emptied it won't fill any more, as the 5800 does not store messages on SIM cards.

the problem on it is insert sim, try to check the srews on it and turn it tighter

contact sim custamer care they told simcard bloged and just u pay 150rs same number in duplicate card

make sure you insert the sim correctly

if you buy a new simcard it will be a empty simcard with no phone numbers in it.

no if your phone is blacklisted - banned from use for example if it is reported stolen, there is noting you can do to fix it, unless your intrested in 5 years in jail for changeing the imei code of the phone.

hi the only one thing you can try without replacing the sim card reader is do you know when you put the simcard in if you push on the simcard with your finger so your pushing it down onto the contacts is fold up some paper so that it put pressure onto the simcard when you put the battery on as alot of times the contacts dont touch the sim card properly so putting some folded paper on top of sim card pushes it down onto the contacts properly.
This solves the problem in most cases but it can be difficult to get right as if the paper isnt thick enough then it might not push it down hard enough to make contact.
If after doing this it still dont work then this either means the sim cards no good but you could try it in another phone or it could be that the sim card reader is not connecting with the board properly and would need replacing.
Make sure you check the contacts are clean on the sim card and the sim card reader to make sure this isnt problem.
If you have not tried the sim card in a different phone then it could be the sim card is no good.
Did this sim work in the phone before just in case the phone dont accept that network as you can get this message if this is the case.

Let me know how you get on and if you need further assistance ok

THIS PHONE DOESN'T USE A SIM CARD.....DUHHHHHHHHHHHHH!!

i have the same phone and which has the same problem i rang customer service to see if they could help they told me to try my simcard in a different phone and the sim works no problemwithsim they told me it could be the phone that is broke only had the phone 3 month