I found my old iPhone but I don't remember my screen passcode
After couple of years I found 2 of my old iPhones that I thought were lost. I unlocked one ( I remembered my pass code) but my other iPhone did not have the same numbers. Ughhhh how can I unlock it and save what's on it without erasing the device etc . I got a lot sentimental things on it and it would break me if I can't retrieve it. Please help!! I do have m phonee in my possession
iPhone 6s Plus