I am new here. I have an HTC M8-1 I got through Rogers in January of 2014. I use it a lot. My battery is getting weak, ordered a new one. There's a place in Calgary called Great Tel that knows how to replace built in batteries. This past Sunday evening my phone shut down due to low battery power. I plugged it in to charge. After a bit I went to turn it on, and like many others I got a black screen with that message.. Unfortunately Sense Home has stopped.. This is what the software is called that powers the HTC plus others. I read others on this site were frustrated as this message just looped around when one tapped.. OK. What I found out, hope others may know, at the very top of the screen is that info bar which one can still by tapping on the top of the black screen, can still activate it and scroll down whatever is there. I found my settings page. I scrolled through it and found there was a software update available. I clicked on it, that loaded, and..wow..it activated the Sense Home and caused my phone to turn on. However.. Not without issues. This software upgrade acted like a partial reset as I lost my entire detailed contact list..had 545 contacts. Also lost my bookmarks and all my saved PDF downloads.
Happily, I have a Samsung Chromebook...which is Gmail..also called Google. Thus in my settings, I found a stand alone entry..said.. Google.. I clicked on that, a long list of to options appeared, one of which said.. Restore contact list..tried it...happily it worked. Got my contacts back..however.. Now I need to reset all in those categories of..friend... VIP..etc. Where I had them. Also need to reattach the photos from my Gallery to many of the contacts. Happily the photo gallery was not affected. Yet I could not get my bookmarks and downloads...found in Tools app..back. Now another issue appeared.. when trying to send an email, I use Outlook..as soon as I want to enter text, I got that message.. Unfortunately email has stopped. Now what? I read through this site, and found I had to go to .. Google play... And uninstall that software upgrade as another user in this site claimed it was faulty. So I did and got to use my email again. Hope this info is helpful to all readers. To install a faulty software upgrade.. To get Sense Home operating again, then to uninstall it to get the email operating again. Almost pulled my hair out in frustration, but I never gave up. Am finding out with all the new improved other softwares coming, it seems a bit much for the HTC M 8 to handle even if it is a great work horse. Thus..I am wanting to get that new coming HTC u 11. Has a much better battery and more. Will use the HTC M 8 as backup, or can sell it to anyone who wants it. It will have a new battery. Cost me $49 installed.