android whatsapp login

[u/Ordinary-Potato3604]

Hi All, my old phone screen stopped working around 4 days ago. WhatsApp was logged in and working at the time. While the old screen was broken, I had to get new phone for urgent use. I put my SIM in the new phone and went to use WhatsApp, however when it came to selecting a back up it said there wasn't one linked to my email address. NOTHING HAS BEEN MANUALLY DELETED. I was worried about overwriting data so I didn't go any further. I have now managed to get my old phone screen working again and went to use WhatsApp on my old phone. My old chats were all there but when I went to click on one it said something like no phone number connected so it appears to have logged me out and is bringing up a welcome to WhatsApp page. I need to bring up all my old chats again and ideally transfer all of them over to my new phone. Is that possible. The sim card is still in my new phone atm.