@geforce911
Look up touchscreen test code from the link. First check it to see if it works good it not.
##2664##
You can answer calls using headset button provided with your phone or any handset that has button. In my phone, I can choose to answer call by home button. Check call settings.
www.redmondpie.com/hidden-android-secret-codes-for-samsung-htc-motorola-sony-lg-and-other-devices/
#0# is the code for general test menu, works on Samsung galaxys, rest people can try their luck.
Botton remapping can be done with xposed additions (root).
Root gives you superuser access, by which you can install custom roms and other features that were not officially provided.
