I recently purchased a Lumia 535 and upgraded it to the latest Windows 10 Mobile technical review without testing the windows 8.1 on it and now the phone has refused to connect to any bluetooth device, has refused to connect to my PC as the PC keeps on not recognizing the phone whenever I plug it into the usb port, keeps on corrupting my memory card (32GB) and the internal memory is already full despite the little apps I downloaded in it. I don't know if the problems are as a result of a defective device or a defective windows 10 mobile OS as I did not use the phone with Windows 8.1 instead I upgraded it to Windows 10 Mobile straight outta the box.
And also I have hard reset the phone a lot of times now.
And also I have hard reset the phone a lot of times now.