I am trying to debug android native library using ida demo version everything otherthing is working except some one I can't find android_server file for keeping on android device and can't see the debugger menu. I tried to follow many posts.
Eval version - https://www.hex-rays.com/products/ida/support/download_demo.shtml you are probably not using Windows.
The MS Windows version contains a demo version of the ARM/Windows CE debugger. Please see our ARM/Windows CE debugging tutorial
Freeware - no luck https://www.hex-rays.com/products/ida/support/download_freeware.shtml