Issue programming a new key

[Mach Turtle]

Agree with the principle that following what other users have done is generally better than following the manual. I followed the manual very carefully (timing, key placement, etc.) about 10 times to program the third fob for our Mach-E and it didn't work. Then watched a 'Tube video where someone programmed a third fob in an Explorer. The video showed the fob being placed in its holder backwards from what the Mach-E manual clearly stated. Worked on the first try when I placed the fob "wrong."

The manuals are written by humans, but a little more care wouldn't cost that much and would make customers a lot happier.

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[CptnWookenstein]

So I got the AliExpress key, did all the steps… twice now I’ve gotten the key programming successful prompt. But immediately after it doesn’t work, I’m not sure what’s happening since I did get it “successful”.
Any ideas?