Toshiba Thrive Honeycomb 3.1 Tablet

I own a Toshiba Thrive Tablet, 10 in. Model AT100, I bought it new 3 years ago, I had it for about 9 months and it was working great! Then all of a sudden 1 day it just stopped, “Black Screen”, I did the factory reset on it finally, you know, Power Button + Volume Button and all that and wiped all data, now for the past 2 years it does power on (When Fully Charged) but it seems to be within a Loop and COMPLETELY Stuck In Boot Mode! it will not boot all the way up, I can’t even see any interface or settings at all for that matter! I have left it plugged into the power and turned on for no less than 3-4 days at a time! Nothing! Just keeps a blue, ring going around and around on the screen! I have heard before something about the firmware needing to be upgraded, but how am I supposed to do anything to it without being able to fully boot-up or find the correct build numbers and all the other info I need from going into the settings to retrieve such info? Please! Help! Iam at the end of my rope with this, but I cannot just let it go, because when I bought it I had to lease to own and I have sunk around $900.00 into it to pay it off, Plus I just Freaking Loved the Damn Thing! Please e-mail me if you can provide me with any information or idea what steps I can take. Thank You So Much For Your Time, ~marilyncovert~