1. Register your game
2. Call your distributor

Open it up check for loose connections

Sounds like a loose connection (hopefully) versus a wider problem. Check the wired connections to the upper left flipper and connections to node board 8. Maybe the upper left flipper leaf switch needs to be adjusted if its not a connection problem. In the manual below node board 8 is handling the lower flipper and upper flipper EOS. Page 14.

https://sternpinball.com/wp-content/uploads/2022/05/Godzilla_LE_Pre_web.pdf

No, unless you bought the game directly from Stern.
You should contact the Distributor you bought the game from.

Sterns tech support isn’t a bad idea, they are helpful 1-800-kickers

Very common for the lockdown bar action button switch to be misadjusted right out of the box. Near the end of the assembly line, they test switches with the glass & lockdown bar off. No surprise, the switch works fine by hand.

Usually you just need to bend the bottom leaf of that switch up a bit. If you've ever adjusted a leaf switch, should be no problem.

you have 11 games and can't diagnose a flipper issue? Time to start digging in, your luck will run out eventually. easy fix and a good place to start.

Most likely a leaf switch adjustment that controls upper flipper. This will be on your lower flipper most likely. I don't own a stern but assume their flipper mechs/swtiches haven't changed too much.
Start at the 3 minute mark of this video link below. Also take a dollar bill and clean the little round contacts between the leafs. Literally pinch the dollar in between the contacts and pull it through.

As far as the launch button on top. Assuming that's how it supposed to work, take the lockdown bar off, start a game and manually trigger the switch and see if it operates like you want. If it does, adjust as described in above comment. Move the switch closer to the button or adjust the action button bottom to go further down. Maybe there's a screw you can turn out or something.

r/
Mike

The guy asks one question about a flipper problem and gets ripped because he owns 11 machines. How do you know he didn't go thru the issues and still can't figure it out?

It's a shame someone can't ask for help on a pinball forum without being talked to like an idiot. I've seen guys post pictures of screws found at the bottom of the cabinet and they still get helpful advice on where it could have possibly come from.

Agreed, thought the same thing. I thought this forum was for things such as this. Yet there's always that guy that just likes to criticize and thinks they're more superior.

He's far more superior, obviously. He has 37 games.

I would at least look under the pf and investigate a bit before calling Stern. Check the left flipper button switches. The upper flipper is staged where it will not trigger until after the left flipper triggers. Maybe that switch needs adjusting. Same thing for the lockdown button. Check to see if the switch needs adjusting. Take lock bar off and press switch with finger. At some point the switch should engage but if not, check wiring that goes to board close to coin box. On my game, the lock bar button worked but did not light up. Turned out to be a wire that was not fully clicked in connector.

wasn't trying to be negative, just trying to encourage the guy to hop in with both feet and try to diagnose it himself. isn't that how we all learned? can't be afraid to try.

I think your switch might be wired backwards. You should be able to keep a ball trapped in the lower flipper while using the upper flipper.

That's what I meant.