NEED HELP Homelink won't open garage door. Seems to pair.

[Sqrly]

#1 I have the original owners manual and I am following the 8 steps. Step 8 seems to be failing. During step 8 the light on the opener blinks the first time I press the homelink button but nothing ever happens after that.

For garage door openers with a “rolling
code,” continue with the following steps:
• Firmly press the training button (usu-
ally marked “LEARN” or “SMART”) on
the garage door opener motor head
unit near the antenna.
• Within 30 seconds, press and hold
the HomeLink® transmitter button pro-
grammed in the previous steps for
two seconds.
• Press and release this button twice
more for two seconds each time.

#2 I am parked nearly under the opener (with the door disconnected).

#3 My Liftmaster opener is an older version with "Security+" not "Security+ 2.0".

Note: My opener has a purple learn button, the newer ones have a yellow learn button.

#4 I spoke with Liftmaster, they said it should just work and that a compatibility bridge won't work with my opener.

2004 GMC Envoy XUV

 

[northcreek]

Yep, when I had my Voy I could program my two Chamberlain doors but, could never get my son's Liftmaster to program no matter what I tried.