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My father has a Samsung Galaxy On5, Android 6.0.1-Marshmallow.

Today, all of a sudden, the WhatsApp on his phone started showing this:

enter image description here

I quickly restarted the phone, but the notification again came back after some time. Moreover, although it's saying it's deleting messages, no message is actually being deleted from any chat or group.

Has anyone faced something like this before? Is it some malware that's causing this? I performed a check of the phone by Malwarebytes, but everything seems to be okay.

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  • Never heard of this. But I'm wondering what happens when you press on the notification? Does it open any WhatsApp setting that would explain this? Is he using Whatsapp beta? – aBochur Jan 1 '18 at 19:40
  • No not beta. And the interesting fact is that, nothing happens even if I press on the notification. Everything is working normally. It's been one hour, but the notification is still intact. Can't even swipe and remove it. – Wrichik Basu Jan 1 '18 at 19:43
  • @beeshyams phone not charging, battery was about 60%, 87% used on device storage. – Wrichik Basu Jan 2 '18 at 4:47
  • Ok. 87% used is a pointer. Here is my guess WhatsApp does local backup everyday supposedly at 2 am but the time is not confirmed. Users have reported at different times and also observed by me// – beeshyams Jan 2 '18 at 4:51
  • Local backup was attempted by WhatsApp but failed since storage was low (87%) . Backup can fail for this reason as per WhatsApp FAQ. So what has probably happened is that backup attempted, failed and WhatsApp cleaning the leftovers from attempted backup. That's why no messages got actually deleted. To confirm this theory, see if it actually did a local backup in early hours. If it is not there then this guess hold weight – beeshyams Jan 2 '18 at 4:55
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To remove the blocking "deleting all messages" notification:

  1. Go to Settings - Apps - WhatsApp
  2. Press "Force stop"
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  1. Go to Setting - Apps - WhatsApp
  2. Turn off the notification
  3. Clear all the notification (interface or desktop)
  4. Turn on the notification again
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Fixes-

  1. Open settings->App management (depends on ur system). Now find Whatsapp from the list. Then tap that and click Force stop.
  2. If above step did not work, then try reinstalling Whatsapp from Play Store. Your data won't be lost. Hope this helps
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