Currently Being ModeratedOct 1, 2013 12:49 AM (in response to drgauravdhakate)
Restore the iOS in iTunes, first also restoring a backup, and if needed as new, without using a backup.
If the phone was previously jailbroken, this may not help.
Currently Being ModeratedOct 11, 2013 2:35 AM (in response to modular747)
Iphone 4 hangs a lot with ios 7
If ios 7 does not perform well on iphone 4 then why apple had give a update to ios 7 to iphone 4
Currently Being ModeratedNov 10, 2013 11:29 AM (in response to drgauravdhakate)
Phone has become slow with ios 7 and hangs quite frequently when using wifi/3g capability. If i am watching you tube phone freezes for 5-10 sec and continues playing the video but skips few seconds of video in between. When using talk apps phone freezes with no button working then in 5-10 seconds phone is back with control but now wifi connectivity is lost it reconnects and starts working again. Frequency of this problem is about 2 times in 10 minutes span, its very frustrating experience when you are in middle of serious work.
Apple suggest some solution or workaround until you fix the problem.