If you accidentally deleted your camera from Reolink APP, you can add it back to your APP manually by scanning your camera's QR code or entering its UID.
Applies to: All Reolink cameras and NVRs.
You can easily find the UID or the QR code on the sticker attached to its body.
Please refer to Add your cameras back to Reolink App and follow the steps to access the device that's already been set up.
If you forgot your password, please reset your camera first. Refer to How to Reset Reolink Cameras
After resetting your camera successfully, refer to Initial setup for Reolink Cameras via Reolink App