I have updated my WhatsApp to the latest version (2.18.46) but it crashes as soon as I open it. I don't get any "WhatsApp has stopped working" messages.

Here's what happens:

  1. I click the icon
  2. White screen opens, notification bar turns WhatsApp green
  3. White screen suddenly disappears and I am left with the previous screen

I don't think an instance of WhatsApp is running as I don't get any notifications also. All the messages remain undelivered.

Things I have done:

  1. Restarted the phone
  2. Checked network - both WiFi, 3G
  3. Removed battery, inserted it again, charged till 100%
  4. Force killed WhatsApp
  5. Uninstall - reinstall WhatsApp

I don't know what's happening. My OS is Lollipop (5.1) Cyanogen. Everything was working fine. It messed up after the update.

  • See if you have disabled important permissions in cyanogen settings?
    – NVZ
    Feb 11 '18 at 18:09
  • See if you have disabled google play services or other background data or sync settings?
    – NVZ
    Feb 11 '18 at 18:10

Okay, it has started working. Here's what I did.

  1. Remove WhatsApp or any app that crashes
  2. Restart the phone [this will remove any instance, cached process, etc.]
  3. Remove Play Services [restart the phone]
  4. Now the phone should try to update Play Services [you can manually do it by typing Play Services on Play store]
  5. Restart the phone
  6. Install WhatsApp or any app. Ta-Da! It works.

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