Unable to install ios 5.1.1, while is already downloaded on my ipad
I already downloaded the update of ios 5.1.1 OTA, using wifi on my ipad but when it is going to install, message occured "unable to install the update, error occured when it is going to install", can somebody help? The updated can't remove and can't be installed. It's stuck on my ipad 1
iPad, iOS 5.1