It sure sounds like it’s toasted but you’re not giving us much information about which steps you’ve taken and where it went wrong. I think that anyone who has a driver other than those described in the writeup should wait until i come up with a guide for tuning. The led light is very helpful for tuning the walye drivers but the newest drivers(“good laser” )don’t perform the same way. The best way to tune those would be with a dummy load to replace the diode for the tuning process. Vicuous had no problems with a couple of these drivers but for those with less electronics experience, a fool-proof method is required. Just an fyi for those with “good laser” drivers.Proceed at your own peril.