hey bro... i have the same issue... i updated my phone yesterday and vibration is not working properly... Not working at all or suddenly just works.... so you got any solutions?
i have almost same problems too (problem no: 1-4-5-6-8) also a big problem after the update the phone DOES NOT VIBRATE.... sometimes it does smt it does NOT.... What is this?? It vibrated on charging but no vibration when needed... Cmon samsung.... V...