Can anybody help me regarding my dji go 4 app

Try to turn on or link AC first

What is AC SIR?

I connected air craft but could not see these option even

sunilarya Posted at 2018-1-7 04:06
I connected air craft but could not see these option even

From the screenshot to judge your aircraft (AC) was off.
On my App the setting is below the settings you're showing, i need to scroll up from there in the settings to reach it, and yes it should be named "RC Signal Lost".

Thanks problem solved

sunilarya Posted at 2018-1-7 22:23
Thanks problem solved

Sir, please ensure that the light of the RC is green when you fly your drone. Glad you solve the problem. Thanks for your support.