Question about my visa

Hello. I had to get a new American passport while I was in China because the old passport was going to expire in April 2021. The old passport has a ten year visa that expires in 2025. A friend in China told me that I can use the visa on my old passport with my new passport at the same time to enter China when China allows entry again. My question is this information correct? Can I use the visa from my old passport with my new passport since the visa is good until 2025?