u/Borashar

Hi.
first of all please don't delete the post. It might seem that I go against rule 7 of this subreddit, but I haven't deleted anything, I just want to log in to whatsapp.

I've got a new phone today and I made a huge mistake.
I forgot to create chat backup and upload it on cloud on my old phone, before putting my sim in my new phone.
Now I put the sim card back in my old phone to create the chat backup, but for some reason I can't log in to whatsapp anymore. No matter how many times I try I'm not getting sms or call from whatsapp to verify my number.
I haven't changed anything to my old phone.

What will happen if I reinstall the app? will it delete all my chat history as well?

If anyone has any fix for this, I will appreciate it a lot!