Can't find the Mail or Safari icon on your iPhone and you're desperate because you don't know how to restore it? An application that you can easily reach via Spotlight search is not available on the home screen of your iPhone? It seems strange to me... in any case, don't despair, I'm here today to help you out and help you deal with this small-big problem.
With today's guide, in fact, I'll explain how to retrieve icons on the iPhone, illustrating all possible solutions to the "disappearance" of apps from the home screen of the famous Apple smartphone. We will see, then, how to reinstall the system apps in case of uninstallation (an operation that can only be done on iOS 10 and later), how to disable iOS restrictions (which may inhibit the display of some icons on the home screen) and how to reorder the icons on iOS so that they are arranged in the default order.
We solve your problem!
What do you think? I'd advise you not to waste any more time and take action now: take your iPhone, read the instructions below and try to put them into practice. I assure you that whatever problem you have with the icons of your "melaphonino", thanks to my advice you can solve it in a handful of tap. I wish you a good reading and, above all, I wish you a big good luck for everything!
Retrieve the default app icons on iPhone
With iOS 10, Apple has introduced the ability to delete predefined apps from iPhone, such as Calculator, Calendar, Compass, Contacts, FaceTime, Find My Friends, Home, iBooks, iCloud Drive, iTunes Store, Mail, Maps, Music, Notes, Podcasts, Reminders, Bag, Tips, Video or TV, Voice Memos, Watch and Weather. This is a "light" deletion, meaning that some app data remains on the device's memory and, more importantly, you can't replace it with other apps by making them default apps to perform certain tasks (e.g., you can't set Outlook or Airmail as default apps for email instead of Mail).
That said, if you no longer find some of the default icons on your iPhone, most likely they were removed by uninstalling them. To fix the problem and get them back, all you have to do is open the App Store and download them, as if they were any application from Apple's famous digital store.
Start the App Store by pressing on its icon on the iOS home screen (the letter "A" on a blue background), select the Search tab at the bottom right, search for the app you are interested in (e.g. Weather, Mail or Contacts) and select it from the search results. At this point, tap on the cloud icon on the app description page and wait for it to download and install on your "melaphone".
At the end of the installation, you'll find the icon of the app just downloaded from the App Store in the iOS home screen, ready to be started and used, as if nothing ever happened (net of the request for any permissions to access location, photos, notifications and so on).
If you don't understand some of the steps and/or want more information about how to uninstall the default apps from iOS 10 or later, please see Apple's website.
Note: As for third-party apps, if they are not accessible either from the home screen or Spotlight search, they are most likely uninstalled from the iPhone. To remedy the problem, open the App store and download them again.
Retrieve hidden icons through iPhone Restrictions
Can't find the Safari icon or other default applications that can't be uninstalled or are still installed on my iPhone? In this case, it is very likely that iOS Restrictions are active on your device: a system that allows you to restrict the use of your phone (or tablet, in the case of iPad) by inhibiting access to certain system applications, such as Safari, Podcasts and iBooks Store, and third-party apps based on their type or age (e.g., you can hide all social networking apps or all apps not suitable for children under 17, 12, 9 or 4 years of age).
To remove iOS Restrictions, you'll need to access your system settings, type in the security code that's been set for them (so if you didn't set the restrictions, you'll need to ask who set it) and disable the block for the apps you're interested in, or all of the Restrictions blocks.
To proceed, then go to the iOS Settings menu (the gear icon located on the home screen) and select the items Time of Use > App Restrictions from the latter. Then type the unlock code needed to change the iOS restrictions, locate the categories of apps that have been locked, select them and press the Delete Restriction item.
Then, to deactivate any blocks applied to system applications, go to the menu Time of use > Contents and privacy > Allowed apps and move the toggle switches for the apps you want to reappear on the home screen to ON. If, on the other hand, you want to disable iOS restrictions completely, go back to Time of use > Content and privacy and move the stick related to Content and privacy to OFF.
If you're using a pre-12 version of iOS, you can disable only certain system apps and restrict the use of third-party apps based on target age. Go to Settings > General > Restrictions and type the security code needed to access the Restrictions preferences. Once that's done, if you want to restore access to the default apps that have "disappeared" from your iPhone (and then have their icons displayed again on the home screen), move the relevant levers to ON and you're done. If you want to restore access to third-party apps, select Apps and check the box next to Allow All Apps.
To disable all iOS Restrictions and not just App Restrictions, go back to Settings > General > Restrictions, tap on Disable Restrictions and type in the security code to unlock the Restrictions. That wasn't difficult, was it?
Retrieve icons from iPhone folders
If you can't find an app icon on your iPhone's home screen, and you're looking in Spotlight for an app icon that's regularly installed on your device, it's probably hidden in a folder.
To verify this, scroll through the main menu screens of your "melaphone" and open all the folders in it. If one of the folders has the icon of the app that seemed to have "disappeared", tap on it (so it starts to "dance") and drag it out of the folder on the home screen page that you prefer. When you're done, tap the Finish button at the top right to save your changes.
As I also explained in my tutorial on how to create iPhone folders, removing all icons from a folder will automatically delete it from iOS.
Reorder icons on iPhone
Have you opened all the folders in the home screen of your iPhone, but haven't found the app you're interested in, which is installed on the device because it can be reached through the Spotlight search? In this case, what I suggest you do is to access the iOS settings and order a restore of the iPhone icons: in this way, all folders will be deleted and the apps installed on the device will be set in the default order. This means that the default iOS apps will be sorted in the order they originally had and third-party apps will be sorted alphabetically.
To control reordering the icons on your iPhone, go to the iOS Settings menu (the gear icon located on the home screen), go to General > Restore, select Restore Home Screen Layout from the screen that opens and confirm by pressing the Restore Home Screen button at the bottom.
Retrieve icons on iPhone jailbroken
If you jailbreak on your iPhone, some icons may have disappeared from the iOS home screen due to the action of some tweaks or problems that arose, in fact, after unlocking the device.
To fix the problem, try accessing the tweaks you've installed through Cydia (in my post on how to hide iPhone apps you can find a list of tweaks that allow you to protect apps by hiding their icons from the home screen) and check that the app that now seems "missing" hasn't been hidden through them.
If successful, in order to "unlock" an app hidden through the tweaks in question and display it again on the home screen, all you have to do is put or remove the check mark on its name or turn the toggle on/off (depending on the tweak settings in use). Easy, isn't it?
If, however, the search is unsuccessful, try restarting your "melafon" (for detailed instructions on this procedure, see my tutorial on how to restart iPhone) or, in extreme cases, remove the jailbreak or restore it. If you don't know how to remove the jailbreak and reset iPhone, please have a look at the guides I have dedicated to these topics.
Retrieve the iPhone icon on your PC
Is your problem not displaying icons on iPhone, but displaying the iPhone icon on my computer when I connect my phone to my PC via Lightning cable? Then there are probably communication problems between your Apple smartphone and your PC.
To fix the situation, you need to install (or reinstall) the drivers needed to make Windows and iPhone communicate. These drivers are included in iTunes, Apple's in-house media program that allows you to sync and manage your iOS devices from your computer.
To download iTunes to your PC, go to Apple's website and click the Download button on the left side bar. When the download is complete, open the iTunes64Setup.exe file you just obtained and click the Next, Install, Yes twice consecutively and Finish buttons. If some of the steps are unclear to you, read my tutorial on how to download iTunes. If you're using a Mac, you don't need to download and install iTunes because it's already included "as standard" in macOS.
Now, open File Explorer (the yellow folder icon at the bottom left of the Windows taskbar), go to This PC/Computer via the bar on the left and you should find the iPhone icon in the list of devices connected to your computer. To learn more about this topic and understand in more detail how to connect iPhone and computer, I suggest you read my tutorials on how to connect iPhone to PC and how to download photos from iPhone to PC.