Q: After updating to ios10 - my phone app crashes

Hi

Try a reboot press & hold power button & menu button hold both down until you see appple logo.

This can take 30 seconds .

Cheers

Brian

either you can restore your iphone with itunes it will better for you!

I can understand your problem,

so i think that it will help you - https://support.apple.com/en-in/HT201412

I have EXACTLY the same problem, after updating my iPhone 6 to iOS10!

And my new iPhone 7 also has the same problem!!!

Very frustrating!!!

Apple, please do something!

There are at least 5 posts reporting this same problem:

https://discussions.apple.com/thread/7671180

https://discussions.apple.com/thread/7666112

https://discussions.apple.com/thread/7671366

https://discussions.apple.com/thread/7681132

https://discussions.apple.com/thread/7679372

"Phone" App keeps crashing under iOS10, reboot, reset do not help.

Apple, please tell me you are gonna fix it in 10.0.3!!!

There seems to be a solution at "Phone" app freeze on iOS 10

Here is what I learned:

Basically, you need to go to Settings->Mail->Accounts->...

to disable the syncing of "Contacts" from those accounts.

The biggest culprit is Exchange server and Hotmail accounts.

Gmail accounts can also be the cause.

iCloud account should be fine.

It seems iOS10 has problem syncing Contacts from some of those servers.