hey guys I have had the same problem last night,, when I was cleaning my KF2 from some apps, I decided as I am not using the KF store to delete it, went in the root explorer and deleted something belongs for amazon like the app store and other app called "website.. cant remember the other word"
yeah, well after I finished, went out from root explorer, something was working normally and other apps and things were saying that it stopped working "wait or quit".
so, then I turned it off then on, but it only showing "kindle fire" loading, but even if I leave it for hours it just shows as its loading... and with the screen going Dark and grey at some points.
heard that I need to do hard reset for 20 second and didn't even work for 30-40 seconds too, can't get it to read it on PC..
tried to contact them on their forums lol they said I need to buy something before I get the chance to ask a question.."seriously I was amazed by the amount of this BS" because my country isn't supported for any amazon service, even if I tried to buy using a credit card it won't let me.
I hope you guys have any idea about this issue, else it's going to garbage after 3 weeks usage...