Update on My Testing of Parking Mode (FYI Posted same post in another parking mode issue discussion):
At this point with my testing currently (not completed yet running a few more variables), turning on the Boot Delay (for my experiences so far) having the boot delay ON and set to 5 seconds is one of the factors that has improved the reliability of parking mode so far, along with a few other variables Ive tested. I havent yet been able to rule out boot delay as a potential factor in buffered PM working correctly for me at the moment, though I have a feeling its not.
Im now testing out if the SD cards im using are playing a big factor in it only recording for a couple hours in parking mode. This is where I think the ultimate problem for me lies, though im still working on confirming this.
These are the 2 cards ive been using:
Samsung EVO Select 128gb U3 C10 card has been working with the current settings all night, capturing all events on A129Duo and A129IR, both cameras with latest A129IR firmware installed (rear camera ends up being black and white because it thinks its an IR camera) Though this card did have some problems with some previous tests on the A129Duo firmwares, it could have been from firmware or settings I was using at that time. At this point, this card has successfully passed the overnight parking mode test (Auto Event Detection) on A129Duo and A129IR cameras, both with latest A129IR firmware installed, 5 second boot delay, voltage cutoff 12.4v, 50hz, GPS OFF, WIFI OFF, WDR OFF, Parking Motion Sensitivity HIGH, Parking G-Sensor HIGH though it doesnt do much.
SanDisk Ultra A1 200gb C10 *(This is the other potential culprit of the parking mode failing after a few hours) Sometimes I get 2 hours of parking mode, sometimes i get about 4 hours, but then the camera/card doesn't record any events until the engine fires up and switches it back to driving mode.
After digging a little deeper into the SD cards, its looking like even though i thought the SanDisk A1 might be okay for use in some dash cams, the signs are starting to point to the contrary. While it handles driving recording well, something with the parking mode, buffering, or recording lots of (parking) clips back to back with little 'off' time between recordings is causing the camera to not be able to write files after about 2-4 hours in parking mode. I haven't done an extended 2-4hour drive test to see if it cuts out during driving or not.
I also dug a little deeper and noticed the SanDisk A1 card is just rated for HD video, not 4k video transfer rates so this probably a factor.
I didn't do enough research on the SD cards before purchasing the camera so theres probably other posts out there that inform people of this but in general for dual dashcams youll probably want to start with a card that can handle a 4k transfer rate to begin with, because the dashcam is transferring 2x 1080p files at the same time aka Half of what a 4k transfer would be, but double what a solo 1080p write would be. So with that in mind, this is probably one of the bottlenecks for the SanDisk A1 cards.
To test this, I purchased 2 "endurance" cards the other day that are specifically designed for DashCams, Security Cams, and CCTV cameras, One
Samsung EVO PRO Endurance 128gb and one
SanDisk HIGH Endurance 128gb and they should be arriving today.
From my limited research, regular consumer style SanDisk Ultra or Samsung Evo Plus/Select Cards and similar that boast high transfer rates, do so with much less abuse to the card in regular instances even though recording 4k and are really meant for DSLRs/Mirrorless cameras, and consumer tablets, devices and cameras. However Dashcams are much different, in that they write, erase, and re-write over those memory cells much more often. Each time files are written, deleted, then re-written over, it slightly damages the memory cells. So with Consumer cards in cameras phones tablets or whatever, take much less abuse, and the cards are able to handle that information differently. From my minimal research and understanding (haha) these Pro Endurance cards, do much less damage to the memory cells because of how it writes and re-writes the data to those cards. This is supposed to extend the life of the card and also make it handle the abuse that dashcams cause to them much more efficiently than the other types of cards. It's even noted in many of the non-Pro Endurance card warrantys that the warranty does not cover if the card was used in a dashcam or CCTV device.
Once those come in and I can do an overnight test with those I should be able to confirm if the boot delay had any effect, if the SD card was the reason, or if its something completely different, but I think im getting pretty close to nailing down what settings work consistently and will let yall know.
What Micro SD cards are you guys using and has Auto Event Detection working and Buffered Parking mode motion detection been working correctly all night for you? Maybe we can pinpoint 1. if it really is the SD cards causing this issue, and 2. Which SD cards work correctly so we can point people in the right direction.