Should I replace the battery myself?
My dad's m8 keeps dying at 20%~ and I was wondering If I should attempt to replace it myself. it got a 2 out of 10. I already have a soldering hot gun that can be set to a minimum of 150 degree so I'll use it to open everything else.
he had it for 2 years (when htc one m9 came)
sorry if it's a dumb question it's just that I"m a little afraid as I've never done it before