@lindamgulwa, Reading your question literally, I would have to say that the cameras on your A80 all come as a single assembly and are generally not considered to be repairable. However, they are definitely replaceable, which should solve your problem. iFixit doesn't have a guide to that repair, but the Spanish site Nadie Me Llama Gallina has just what you need.
[link|https://www.nadiemellamagallina.com/en/manuales/smartphones-1/samsung-4/samsung-galaxy-a80-1107/c-maras-9744|Manuales / Samsung Galaxy A80 / Cameras - Nadie Me Llama Gallina]
The site is in Spanish, but used with the Chrome browser's translation feature, it is quite usable and well written. The part itself is readily available; I saw it for sale on Amazon, eBay and AliExpress, and several other sites as well. Here are a couple of examples.
[link|https://www.amazon.com/fonefunshop-Compatible-Samsung-SM-A805F-Replacement/dp/B09MMC6Q8Y|Amazon.com: Compatible with Samsung Galaxy A80 SM-A805F Replacement Rear Camera : Cell Phones & Accessories]
[link|https://www.aliexpress.us/item/3256805936742131.html|For Samsung Galaxy A80 A805 Main Back Big Rear Camera Module Flex Cable - AliExpress 509]
No matter what problem you're having with the camera, replacing the module should take care of it.
Good luck and let us know how it all turns out for you.