[Share] One battery drain & heat caused by obstructed vibration motor
I would like to share a few things I just found out on my One. This is rather weird IMO.
I have 3 months old HTC One M7 801e 32 GB
For these last 3 days I've been trying to troubleshoot my One that has been draining its battery unusually fast(like 1% per 2-3 minutes) and also it constantly heat up (above 39.5 deg c) under normal use (like when texting). One will cool down once it enter deep sleep. Power saving mode makes no difference.
Camera purple tint also appears when my One overheats. When it cools down purple tint disappears. A new discovery for me
First thing I thought there must be some rogue apps hogging up system resource, so to isolate the problem I disabled all recently installed and used Gsam, battery monitor, etc to see what could be draining the battery. Alas I have no luck, major resource percentage is attributed to Androh'd system. The phone also went to deep sleep most of the time when screen is off.
CPU usage is also low, maxed at 30% but the battery still discharges like there is no tomorrow.
Based on above observations I concluded the battery must be faulty.. I mean no cpu usage but battery heating and draining like crazy.
I'm about to do the htc various hw test using *#*#3424*#*# and I just happened to know VIBRATION is not working. Tried to restart, power cycle, letting it cool down. Nothing works.
I said to myself, I'll be darned, faulty battery, purple tint camera and faulty vibration motor.. a lemon One, duh.
This is the weird part, I listened to my One real close when the vibration test is running and I heard a kind of 'click clack' sound during vibration test toggle.
If you have seen a vibration motor it's basically a motor with unbalanced weight that produces vibration when it's turning.
The click clack sound is similar when the weight cannot turn because it's being obstructed.
Out of frustation I jerked the phone somewhat hard and guess what? The vibration starts working again!
More surprise, the bat temperature dropped.. and the phone battery draining spree appear to stop. I'll post an update if this is really the case. Need more time to conclude something definitive.
My best guess is the vibration motor being obstructed induced the battery draining and overheat.
Anyone has got similar experience? Got more thoughts?
You may think the faulty vibration motor must be caused by I'm being careless.
But I take care of my phone, it survived a few drops (like 2-3 times from new), nothing serious though. A few light drops I dare say.
If it's really is a lemon too bad I can't return my One even if it's faulty since consumer protection is very weak in my country. Basically you buy something from me, your money is mine and you are on your own. There is official manufacturer warranty but god knows how sloppy are the local technicians (repair typically cause more problems) and how long will it took (think about 1 month backorder)
Sorry for the long rant, I think my experience is somewhat interesting. So I thought it's a good idea to share it.