My sister has an iPhone 5 (iOS 8.1.3). Since some days, it seems to be impossible to open both WhatsApp and (Facebook) Messenger. For both of them, the following applies.

  • On the home view with all the apps, you can see that there are new messages. But if you open the app, it shows for 1 second, then the screen goes white, and then the home view with all the apps shows again.
  • After double-clicking on the button (in order to reveal the miniature view of all apps opened), you can see that the app is indeed opened, but if you click on its miniature view, you will again see the scenario with the white screen.

What could cause this and how can she solve it?

  • 2
    Update the iOS, there's no excuse to be on an out of date OS & no developers will be testing against it any more as all devices that can run iOS 8 can run iOS 9. – Tetsujin Mar 22 '16 at 8:13

Because of the closed nature of IOS, there really are no troubleshooting steps that can be taken, besides deleting app/reinstalling, or wiping the device, setting up as 'new' device, and then trying again.

Unfortunately, though the apps list IOS 7+ and 6+ as requirements in the app store, I have seen this behavior on older iPhones (namely my GF's) and the 'fix' has been to update IOS to a newer version. Though this is not technically a 'fix', as the apps SHOULD work with 8.1.3, it does (for my GF at least) 'solve' the issue.

Of course, your first step should be deleting the apps and then re-installing them from the app store as I mentioned above.

If that doesn't work, and if you have performed a backup of the phone (either to iCloud or iTunes), you can try simply resetting the phone to factory defaults (keeping IOS at the same version), setting the iPhone up as a 'new' device, and then try to install the apps to see if they work. If they don't, then you have your answer. If they DO work, then you can reset the phone once again, restore your backup and hope for the best.

If this STILL doesn't work, you may try to update the IOS version, either via iTunes or the phone's native Over-The-Air update process, but the latter requires there be enough free space on the phone to download the update TO the phone. Of course, make sure to take a backup first.

At the end of the day, I have personally had to just bit the bullet and start all over, setting the iPhone up as a 'new' device, and NOT restoring from a backup, in order to resolve some issues. If you elect to take this route, make sure you have your data backed up/saved elsewhere, OUTSIDE of the iPhone backup. Alternatively, you can use third-party software like PhoneView, iExplorer or iBackupBot to retrieve data from iTunes backups.

To reset phone to factory defaults (only do this after you have taken a backup): Settings>General>Reset (at the bottom) > Erase All Content and Settings.

  • 1
    Indeed, updating to the last iOS version solved the problem. – Karlo Aug 1 '17 at 21:04

First, you can do some basic troubleshooting:

1. Restart your iPhone. This should be your first step as with most smartphone issues when WhatsApp on iPhone is not working. Just press and hold the power button (Sleep/Wake button) until the power slider appears on your iPhone, and then slide to shut down. After minutes, restart your iPhone.

2. Close out of WhatsApp. This works for the glitches or bugs of the app itself. Double-click the Home button to open the app switcher, find the WhatsApp page that opens currently and then swipe WhatsApp up and off the screen. Now re-open WhatsApp to see if WhatsApp not working is resolved.

If that still doesn't work, you can try the following methods:

1. Upgrade your iOS to the newest version. Now iOS 11 is available for you to download: On iPhone, tap on Setiings -> General -> Software Update -> update iOS. via iTunes, connect iPhone to computer -> open iTunes -> click your device -> Summary -> click Check for Update.

2. Uninstall WhatsApp and Reinstall. Reinstallation will erase your chat history, please use a WhatsApp message backup software to backup WhatsApp data first.

WhatsApp Still not Working? You may get some further solutions like check the Internet connection, WhatsApp's server status and more.

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