error -1 while updating ipad to ios5.0
 

hi, guys.

i'm having issue while updating ipad to ios 5.0.
the updating bar has finished on ipad, and itunes has done upgrading. but at the end itunes said error -1 and the ipad is in recovery loop.
i was successful updating this ipad to ios 5.0 once, but i couln't activate it. itunes couldn't complete the activation process, and it said that the device had to be recovered with itunes. so i did the recover process again, and i got this issue.

is anyone having the same issue like me, or anyone got the solution for this? is there fix recovery for ios 5.0?

thanks.

Wait Till Apple Fix It Its Problem With Baseband 6.15.00 ... So Like You All Those Who Have 3Gs With 6.15.00 Baseband .. They Also Facing Same Problem.. After Using FixRecovery You Can Use Phone & iPad... But You Cant Use Sim...So Wait..

thanks for your response, krunal.
i took the simcard out, then tried to reflash it. and it works. finally it finished updating without error.
but i still can't activate the ipad, although i have plugged the data cable with.

I have exactly the same problem, as you have solved?

The whole problem starts when you change the battery (I tried it with 3 different)