Samsung S5 Neo G903f had Android 6.0, wifi and bluetooth did not work in it in the sense that the slider will move but wifi or bluetooth does not search for any networks, these two functions simply do not start. The IMEI is correct, I uploaded the system via Z3X with Android 5.1.1 because I read somewhere that the upgrade to 6.0 could do something with wifi and bluetooth, but unfortunately the system upload and downgrade to 5.1.1 did not help. I am asking for advice.
