My mobile phone has received more than 600 mobile phone notification text messages. I want to delete them but it crashes every time I delete them. How can I delete these text messages?

If the memory is insufficient, uninstall some of the useless mobile software first, delete the free memory one by one, then mark 5, 10, and delete them one by one.

The 600 text messages should be on the mobile phone, but you need to check. Some of them may be on the mobile phone and some on the mobile phone card.

If you want to process it, it is recommended to connect it to a computer. This will avoid excessive use of the phone's memory and free up enough space for you. If it still doesn't work, format it