Can't enable USB debugging, is permanently grey

[Meneer Jansen]

I'm not gonna read the whole topic so this may already be solved. Sorry. But here's my solution:

1. Go to: "Settings > Connectivity > Default connection mode" and select 'PC software'.

2. Now you can select 'USB debugging mode' in: "Settings > Applications > Development".



P.S. NO need for a PC connection to enable this.

 

[kirstoxox]

thid was awesome helped me also thank you ur a legend

 

[Gimhana Gagana]

My phone has same problem. USB debugging is gray. I tried all things in previous comments. But still It is not working