Why is my dashcam beeping and flashing？

This may relate to card or connection,

1. Card

You shall format the current card or try a new one,

Below are what we suggest.
https://amzn.to/2UVMfbN
https://amzn.to/3BnvsPy

2. Connection

Try the other short cable and the home socket for power,

3. Firmware

You shall update the firmware and reset the cam as last resort.

if all fails, you shall contact customer service for technical support.

① Submit a request – Zenfox Help Center (zendesk.com)

②  Email： [e-mail]