I have iphone 5 and experiencing the same problem, but it get fixed by itself after some time. pelajari cara memperbarui firmware modem dan router. Modem dan router jaringan menggunakan perangkat lunak internal (disebut firmware) beserta perangkat keras untuk menyediakan layanan jaringan, seperti akses internet atau email. Even if the iphone 4 is jailbroken or hacked, once you update in itunes, you have the latest ios and associated modem firmware. if you’re not sure which firmware file to download for your iphone, then check the post which will help you identify which firmware file to download based on your iphone’s model. Below are the direct links for the ios firmware updates that have been released for the iphone by apple so far. just like mac os and windows for desktop computers, the iphone os ensures that all components operate optimally and important devices like the modem are operational. The ios firmware is the major software that runs and coordinates communication between hardware and all types of software within the iphone.
