Share your experience!
So when I turn on the wifi with the little slider button in the menu. it will turn on then right back off aftrer 5 seconds. Bluetooth will not turn on at all and the phone keeps giving me the message Bluetooth Has stopped close app and Bluetooth Keeps stopping. Tried restarting it, turning airplane mode on and off, not sure where really go after this to be honest.
Hi @ooZINCSUKAoo, sorry to hear about this. 
Is this something that you have started to experience after you installed a new update, or installed a new application in your device?
I would recommend that you start with rebooting your device in safe mode and see if you are able to activate both Wi-Fi and Bluetooth. This will tell us if a downloaded application is the cause of this, as they are temporarily disabled in safe mode.
You can also try and clear data for the Bluetooth application in Settings > Apps & notifications > App-info > 3 dots in the top right corner > Show system > Bluetooth > Storage > Clear data.
Let me know how it goes!
I have a Sony Xperia XA1 Ultra and my little girl cracked the screen 6 months in, I GET IT its not covered by warranty. I called Sony and asked if I can pay for the repair and was told there is no one in the states they use to repair the screens. Are you Serious? Not even if I paid for the repair? No one in the whole Austin, TX, area works on them either so couldn't even find a repair shop willing to work on it. I fix the phone myself did everything correctly and after a software update now I'm having issues with my bluetoothe and wifi turning it on or finding cell reception at all. Sony said send it in. Then it gets sent back because I worked on the phone, now the phone constantly freezes and wifi bluetooth and cell reception does not work and no one to help fix it. I have tried multiple times walking through the trouble shooting steps with reps on the phone and chat and no change what so ever. This has been the worse customer experience I have ever had in my life especially with this being my first phone from Sony. I loved and still love the phone. Problem is that it no longer has any capability of being a phone anymore and really wish someone in Sony gave a dam about helping it's customers in some way. I whould have been able to be refferred to a repair shop or paid for the repair but now here I am with a useless shell.
Hi @ooZINCSUKAoo, apologizes for the late reply, I have been on vacation during Christmas and New years.
I understand that this is very unfortunate situation, however since I do not work directly with the US market, I'm not very well informed about warranty, local service routines and consumer laws. I'm afraid that there is not much else I can do except for referring you back to your Local support team and they should be able to provide you with very detailed information on how you can proceed with this.