Yea mine still won't turn on. Every time, it loads the UMX logo screen and turns back off. And it's at 18% battery and currently charging.
It does this over and over until one time it finally loads the rest of the operating system. 96% of the time, it just loads the UMX logo, then shuts off again.
I have a umx phone that isn't working correctly ive tried reinstalling battery using a different cable when plugging in it still dont work correctly ive tried contacting umx their box says full so I cant leave a message dont no what to do
Try re-installing the battery and see if that works. If not, have you tried using a different charging cable, plugging in to a different USB port or different wall socket? If not, I suggest that you try it first. Otherwise, I think the issue is in your phone's battery. I suggest that you contact UMX. Good luck!