so i bought a iphone earlier today from some sketchy guy who wanted to meet in a homedepot parkin lot and i asked him if everything was fine, he answered yes, i checked it out an all seemed good. until i got home an got a call , it vibrated, no sound, so i checked the toggle switch on the side, checked all the sound settings an so on. still didnt work, i then did a recovery restore, still nothing. i then did some more research an found out it was some bug . there are some fixes where you download a app off cydia an it controls the volume it self but apparently only work for iOS 4 an 5 , so ive been trying to downgrade my iphone with redsnow evenmore > restore > but i dont have the shsh blogs for 5.1.1 to restore it..... is there any fix to this silent bug issue for the i0s 6 on iphone 4, please help thanks