INVALID RESPONSE: k66ap error

any news on the error guys

INVALID RESPONSE: k66ap error.

as i have done lots of atvs but i now have this error on one of mine when using ifaith 1.59 and 1.58 and tries seas0npass to save signatures but that wont work either…

 

also has anyone who has had this error tried to go up to 5.3 and do a tethered JB as ill ber happy with that as wont be long till untether comes out now that the new iphones are out.