weird mine is ok.
Have you tired updating software that should install maps again for you...
well , I did update my phone to v15 , but I got another strange problem in secondary camera .. I had to take my phone to repair centre . They did flash my phone to v11 but it failed .. after doing it the camera went up again
so shall I update my phone again ?? " I'm afraid from Secondary Camera problem : Unexpected HardWare error , Switch Off power of restartr your device "