In the last three months, there have been 5 or 6 SMS ringtones on Nokia 5250, but there is no SMS on the screen, and the screen is lit, that is, there is no SMS.

Hello, this happened because the anti-virus software in your mobile phone intercepted the message you received, but you can still check it. When a stranger or customer service sends you a text message, it will intercept you, and there will be a prompt in the upper right corner of your mobile phone. You can see this short message by clicking on it. You can also directly open the antivirus software to check. Solution: Turn off the internal firewall and choose smart mode. If you can't find the settings, it is recommended to uninstall the antivirus software and reinstall it. I believe everyone uses 360 or security housekeeper, these two softwares. Of course, this would not happen without anti-virus software. I used to use 360, but I think 360 is too uncomfortable, and everything is blocked. I believe the landlord also uses this. Actually, you can try the security housekeeper. Ok, cut the crap, I hope my little skill can solve your big problem. ".)