Android phone boot loop issue (non-removable battery)

[AC Question]

Please help me. I have an android phone marshmallow (cherry mobile brand - you might not be familiar with it since it's a local brand here in the Philippines) that I have recently did a factory reset due to some issue with apps. After doing it, I rebooted it and then the boot loop issue started. I tried so hard to search for the solution but still no luck. My phone keeps on and off and whenever it reach the logo then it goes off again and again. My phone does not have a home button just to let you guys know and its has a non-removable battery. So I tried the most common way which is by pressing the volume up+power, down+power and up+down+power but does not work. I tried these steps the whole day and even tried press and hold it for 2-3-5-10 minutes. The worst is that I cant even turn it off and it just keep on doing it for the past 2 days now. I thought I'll just wait until the battery run empty but still doing it without fail. What should I do? Can anyone please help me.

 

[belodion]

You may be able to reflash the stock firmware. Try this support site: http://www.cherrymobile.com.ph/