I have GoPro hero 7 . When i switch on , i can see display in front screen but no display on back screen and after few second may be 3 seconds it shuts down automatically . this issues started when i put a memory card and gopro asked from format it . i selected to format then after processing sometime it shut down since then did not started .
@sheop81416, reinstalling the firmware update of the camera can also help correct any errors with the current software installation. Using an SD card adapter, connect your microSD card to your computer and follow the Manual Update instructions specified in this article: https://community.gopro.com/t5/en/How-to-Update-GoPro-Cameras/ta-p/394229
If the issue persists after going through the suggested troubleshooting steps, our Support team will be able to assist you further in resolving this. You may reach out to them through https://gopro.com/help/ContactUs to initiate a callback request or chat with one of the representatives.