USB Debugging option greyed out

Question

I have an LG-E405 phone running Android 2.3.6.

I connected my phone with a USB cable and selected the mode as Charge Only.

Now when I try to tur

Answer 1

Unplug your phone from the PC and go to develop options and now here you can enable USB debugging. if you connect USB and try to enable debugging it will not enable and follow TMacGyver is right it works for me using choose PC connection.

Answer 2

Connect the phone to a PC, make sure your developer options are enabled. Then, connection type must be MTP or File Transfer. Charge only does not allow USB debugging(disables the option).

Answer 3

FYI My Motorola Xyboard had an "Off" icon at the top of developer options. Once I tapped that it worked.