Whatsapp crashing

Update your iPhone to iOS 16.4.1

iPhone models compatible with iOS 12 -> iOS 16.

iPhone models compatible with iOS 16 – Apple Support (UK)

You need about 6 GB device storage and good Service and/or Wi-Fi.

If they are On, turn Off Hotspot & VPN.

Charge the battery > 70%.

Go to Settings -> General -> Software Update -> Download and Install.

See the following Apple articles:

Update your iPhone, iPad, or iPod touch

Update your iPhone, iPad, or iPod touch - Apple Support (IN)

If your iPhone, iPad or iPod touch won’t update

If your iPhone, iPad, or iPod touch won't update - Apple Support

You can do the update via PC, see this Apple article: Update software on iPhone, iPad or iPod touch in iTunes on PC

Update software on iPhone, iPad or iPod touch in iTunes on PC – Apple Support (UK)

If you have a Mac see this Apple article: Update your iPhone, iPad, or iPod touch with the Finder

Update your iPhone, iPad, or iPod touch with the Finder - Apple Support

After trying everything available on any thread across forums, I finally got WA on my iPhone 13 working fine!!! This has been working for me for a month now!! I was waiting to see how long it would take, and so far (touchwood!) all's been well.

• I added a new SIM to my phone
• Took the iCloud backup for existing WA and deleted the app after that
• Reinstalled the app, this time started afresh with the new phone number.
• Deleted the app again
• Reinstalled the app, restored my old phone number
• Voila! It stopped crashing.

Now, for details, my new number did not have any chat backup to screw up from. So, it kind of got disconnected from iCloud. I pray hard enough every day that it continues to work flawlessly as it does now, because I know how much pain it is. I had done multiple loops of going through WA support (which was useless), writing to Apple, following people of forum, basically been in a mess, regretting the upgrade.

So far, so good. Worth a try.