Help intermittent problem with keypad disappearing during phone calls

[greenbergman]

If I need to use the keypad after a call has connected, such as for "press one for English" type of usage, the keypad often disappears quickly without even enough time to press that number. This problem started just recently and is intermittent.

Thank you for assistance.

 

[52stevedo]

I was having almost the same problem.

My screen would black out during calls.I also could not turn on blue tooth.

I went to my local best buy .They have a dedicated samsung rep .
Its free and he fixed it by downloading some software.

 

[greenbergman]

An update: it seems to happen if I tilt the phone slightly and not when I hold it steady.