Can't connect Wifi after updating ios 12.4

Hi Dimsky,

Thanks for coming to Apple Support Communities for help today with your Wi-Fi. It sounds like it stopped working with your router after an update.

You have also tried some great troubleshooting which you can also find here: If your iPhone, iPad, or iPod touch won’t connect to a Wi-Fi network.

An isolating step would be to try another Wi-Fi network. If it doesn't connect to another network, contact Apple Support.

If it does connect to another network, your router may require a firmware update.

Have a fantastic day!

Have you read my post, https://discussions.apple.com/thread/250555816. I had the exact same issue for 2 years, I just about tossed the phone. However the things I was advised to try was, first reset the networks then reset the phone, that is return it to factory settings. Failing that put the phone in DFU mode(youtube) and restore it. I did all these things with no success, hopefully they may work for you. I would not have belived a software could mess up my phones bluetooth and wi-fi but they did. If your Bluetooth is working then maybe your issues are different to mine. I would still like to know what is the relationship, hardware wise, between BT and WiFi so that both were effected by the same issue. Best of luck.