At last I now found the trick to disamble them. Almost ruined the cover to get it out by the using the method described in the manual with 2 screw drivers.
@djholster6767 ай бұрын
While the NaviLED Pro may have a warranty of 5 years, I found the cable used fails internally shortly thereafter, and there is no way to change the cable. It seems they used un-tinned cable. Very disappointed.