how does the sentry codec trick work?
Record some Sentry or TeslaCam video. Take the drive to a computer, look at the video. AP2.5 will record videos in H264/AVC. AP3 records in H265/HEVC.
The hardware for AP2.5 isn't able to handle H265 at useful framerates, so this should be reliable on any firmware version.
Just took a delivery of a LR Rwd turns out it has hw 2.5 but door sticker is wierd, does not say build date just tesla inc e4*2007/46*1293* and the vin number that ends with 34×××.
No Date on there what so ever.
9/19 build date on my LRP Mine was in inventory as a basic autopilot, so I added FSD as an option during the sale. I was told I had HW3 but the TeslaCam videos were using H.264 encoding. So I pulled the cover and YES I have HW3- p# is 1462554-00-H. I think the codec used is dependent on the software version. I have software 2019.27.103 566b11d - not the version that other people seem to have with HW3. Don't know what that means as far as functionality, except I noticed that Summon only allowed 40 feet. Guess I have to wait for an update....
Yes, they changed it. Only way of knowing is with the parts number. But is Tesla still using old HW2 hardware?Yup. A few weeks after we figured out all this codec stuff, Tesla switched all the cars to H264 with 2019.28 firmware; I have been told some folks were having problems with stuttering on H265 that might have been the reason.