L Lucky New member Feb 4, 2011 #1 Me and husband recently upgraded our iPhone 3Gs to OS4.2. We noticed that it is draining our batteries so fast to the extent that it won't even last a day. What is the easiest way to downgrade iPhone's OS without bringing it to Mac? Thank you.
Me and husband recently upgraded our iPhone 3Gs to OS4.2. We noticed that it is draining our batteries so fast to the extent that it won't even last a day. What is the easiest way to downgrade iPhone's OS without bringing it to Mac? Thank you.