WhatsApp won't open on my iPhone since last update.
My software 15.5 version
I am now what’s app update after can’t open why?
[Re-Titled by Moderator]
iPhone 7 Plus, iOS 15
Question marked as
Hello,
The best thing you can do is contact WhatsApp's support department. https://www.whatsapp.com/contact/
On their support page is an email address to reach them.
What you also can do is try to do a hard reset (you don't lose data):
If your iPhone won't turn on or is frozen – Apple Support (UK)