The golden cup trv6 flasher cannot flash.

The switch is not turned on. The flash switch is not turned on. Press the test key. If the flash does not flash, the flash switch may not be turned on. The flash is disabled. Check whether the camera settings disable the flash. The flasher is out of order. The flasher can usually adjust the contact pressure. If it is used for too long, it may lead to poor contact, and a new flasher can be replaced.