Hello,
Just to confirm, are you using the INKBIRD app, or the INKBIRD pro app?
If you can see the SmartLife-FFE1 hotspot, it means its WIFI function is working. Please connect it using the slow blink mode.
Please refer to this post:
If the IBS-M1 can connect to the phone normally, except that the WIFI indicator does not light up, this may be a problem with the WIFI indicator hardware.