Nokia 5300 received an English text message today. When it is turned on, there is no signal on the phone. Please give me some advice.

1. You change a SIM card first to see if the card is in poor contact;

2. If there is no problem with 2. SIM card slot, restore factory settings:

#7780# Restore factory settings

or

#7370# format mobile phone

Please back up your personal data before restoring or formatting it.

3. If it still doesn't work after formatting, it is estimated that there is something wrong with the antenna on the mobile phone motherboard. Go to customer service and have a look.

I hope it works for you!