there is not enough information to go on
we can only guess
normally a non booting computer is
- for a smartphone/tablet
a rootkit YOU ( the user) installed . random "apps" from untrusted sources are the #1 most common way.
a botched "upgrade" or kernel update
a hardware failure
the user edited system files and they messed it up
you might want to read the LQ tutorial on
" asking a question"
look at the top of this page
click on the link "tutorials"
all i know is you installed some plugin for some photo webpage
and now the tablet will not boot
I do not even know the make / model of the hardware nor the version of android that is installed
Who did you buy it from?
AT&T, Samsung , Google/Motorola, some big brick and mortar store ?
if it is under warranty send it back
one other possibility for this
While I was browsing, viber on the way(free calls & messages) I didn't answer it yet, then it suddenly hangs. I turned it off to restart and turned on and that is what happen?
--- might not apply here ---
it is a stolen tablet and the owner "bricked" it