koli_gauravHoly ****. I actually tried this out and it worked!! I drained the battery completely and charged it again and switched it on again and voila.. The vibration works now. I don't know why it worked. But thanks a lot for posting your experience. Normally it dies out after one vibration and now it has given me more than one.. Thank you so much!
I am not sure how it happened but the issue got resolved automatically.
What happened was, today morning my phone switched off due to low battery. I put my phone for charging while keeping it switched off and restarted phone when my battery was around 25-30%. After a couple of hours I noticed that my phone started vibrating (maybe it started earlier and I didn't notice or maybe it actually started after couple of hours). I didn't try to launch armory crate app however now after 10-11 hours I tried launching armory crate and it works as well. Vibration test is showing all green too. 😊
I am not sure if it was due to phone getting switched off due to low battery or it is a lucky day for me 😂. Still thought of sharing my experience with you all hoping it would help someone.
I will let you guys know if the issues are observed again.