Select Menu > Messaging > Options > SIM messages.
Text messages may be stored on your SIM card. Before you can view SIM messages, you must copy the messages to a folder in the device. After copying the messages to a folder, you can view them in the folder or delete them from the SIM card.
1. Select Options > Mark/Unmark > Mark or Mark all to mark every message.
2. Select Options > Copy.
3. Select a folder and OK to begin copying.
To view SIM card messages, open the folder where you copied the messages, and open a message.
To delete a message from the SIM card, select the message, and press the clear (or backspace) key.