New answers tagged iphone-4
There may be other ways to do it (and there are for photos and videos such as putting them on iCloud Photo Library), but if you want to access these all together, a good program you can use is iExplorer. That looks to do everything you want to do. It's not free, but I think they have a free trial you can use.
Did you try doing hard reset your device ? Most of the issues are fixed by hard reset and Many people found that it solves minor bugs too. If you tried it and still facing then you might need to try to take it to Apple Care or just try installing firmware by entering into recovery mode with help of Recboot.
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