Don’t know the way you describe to reset a Hue bulb.
This is used for resetting an Ikea Tradfri bulb.
The best / fastest way is with a Hue Dimmer Switch. Hold it next to the bulb, push the ON + OFF switches together for 10 seconds while holding the switch next to the powered bulb. The bulb will flash 3x to confirm the reset. Now you can add the bulb to SmartThings hub.
The only way youll be able to reset those is with a Hue dimmer switch. There was another way I found somewhere online but it is reported as no longer working. Are the bulbs new or used? If used they were probably disconnect from a hue hub without being reset.
Yes, I got them new a few years ago. When away, I would use all 4.
When I’m home I just use one light for the front door. They all worked at on point. I have not fired the other 3 until yesterday and out of the 4 now only 2 work
I googled that you can reset using Alexa echo. I have someone who has Alexa echo and I’ll see if I can use the Alexa app to find these bulbs and try to reset rest the 2 that don’t work.