Ipad stuck on connect to itunes screen
hiya i'm new to this forum stuff so i dont know if this is in the right place or if anyone can help me.
Im from england and ive got a problem wiv my ipad, i was jus browsing safari and all of a sudden the apple logo appeared and it went to the connect to itunes screen so i hooked it up and it worked but then it happend again a few times so i connected it and itunes said it was in 'recovery' mode so i followed a video that 'THATSNAZZYIPHONEGUY' on youtube made bout the dfu and recovery modes but it still didnt work, so i thought ill just restore it but an error msg came up (error no'28) and it wont let me restore.
So i rang apple and my app care ran out 27/5/11 but i had recently replaced my ipad so ive still got an additional 90 days, so i'm wondering firstly if there is any way i can solve it, eg like a master reset or secondly as it was jailbroken (redsnow 4.3.3) will apple know that it was jailbroken thus voiding my warranty and them not giving me a new one, because it wont let me restore and it just stays on the connect to itunes screen.
P.S oh yeh i even tried rejailbreaking it but as when it is connected to the laptop it wont turn off the jailbreak jus says please wait and fails.
Hope to hear from you soon.