There are various Youtube videos showing that you don't need to be a service engineer to tamper with the machines. 2 minutes and a ball-pen is all you need to get admin access. Don't forget that some of the major counts were stopped for various spurious reasons and everyone was sent away, then they mysteriously started counting again an hour later.
This seems a bit far-fetched to me, but I don't discount it completely because at least it's logical. Some are saying that the Trump side knew that there would be fraud in the counting, so his plan was to let them get on with it, then expose it afterwards. There have been many articles in the past about how vulnerable these machines are, but nothing has been done apart from some weird executive order 2 years ago about remedies if the fraud is found or suspected.
Yes we did see that video at a TRADE show. Where it would presumably be opened up by Trade reps showing its features. I expect that the ones in operation would have minimal vandal protection .. like tamper proof screw heads.. We all know they can be opened with the correct tool, but there are multiple options and it takes time.
Again your statements about mysterious locking out of everyone.. Including the police?. In which affidavits is this listed?. And please for a rational logical reasoning person, quit using the Trump meme of "some people"
So counter narrative.
1. Trump voted by postal ballot. Encouraging others to do the same ..For some reason US people follow their Presidents lead.
2. For 18 months he had been spancilling the USPS , restricting money etc. Reducing its capacity
3. In the period of early voting many counties in States reduced the availability of postal boxes . Supposition is that the restrictions were demographic related ,with Republican Governors ,reducing access in Democratic areas. There are numerous complaints about this. I have not picked up any complaints in the reverse...but that can be biass on my part.
4. The President ,a candidate in the Election, demanded that counts be stopped During the process?... In certain states only . Why?.
Conclusion .. Trump attempting to Steal the election.