What is a smartchip for a sony ericsson. what does this smart chip even look like?

SOURCE: sony ericsson smartchip

I've had the same problem occur once or twice. Seems when the cellular provider makes a system switch from one tower to another system (carrier) the SIM chip can sometimes become temporarily deactivated.

To solve this issue complete the following steps:

1. Shut your phone down
2. Remove your battery and leave it out of the phone for a few minutes
3. Remove you SIM card and wait for a count of 10sec
4. Reinstall the SIM and battery
5. Power the unit on
6. Perform an Initial System Configuration/Setup
7. When the system prompts you to copy the phone list information, select YES
8. Check your phone status. It should now be back to normal.

If following these simple steps does NOT bring your phone back to normal, there may be a problem with either your cellular account (account suspended) or there has been failure of the local cellular network you are trying to connect to. To verify this you will need to either have a second phone with the same carrier to verify connection and/or SIM functionality. If this is not possible, contact your service provider to report a service outage.

Keith

SOURCE: insert correct smart chip

your phone is locked tell me operator of the phone and i will genrate unlock code but not free if interested contact me on [email protected]

SOURCE: Inactive Smart Chip

Unfortunately if it's a bad smart chip I'm afraid you will have to buy another phone. If you've had it several years you really got your moneys worth. Good luck, sure wish I had better news for you.
Here's the AT&T forum about this..
http://forums.wireless.att.com/cng/board/message?board.id=sonyericsson&message.id=29293

SOURCE: sony ericsson smartchip

You cannot reactivate a smartchip aka sim card...once it's deactivated for security purposes they are not reactivated. You will need to get a new smartchip

SOURCE: after resetting and downloading software for my

This means your phone is locked to some network you have previously used( Means u can't use other SIM Card unless ur phone is UNLOCKED) n r u having any contract with any network???

- Nicky