The Yocan Evolve Plus battery would flash without the atomizer plus coil being connected. The blinking issue due to the connection error.

If the Yocan Evolve Plus bottom tiny piece is missing-there's no contact for current to the battery. The battery "on light" behind the press button-will flash repeatedly also-when there's no coil on it.

Please try to swap the cartridges with the magnetic piece, make sure connected correct, it will work immediately.