Cannot downgrade firmware

[Kaspiuxz]

Hello, I have A500S Dash Cam Pro Plus+. I want to downgrade the firmware of it, because I want parking surveillance available without the hardware kit. Which firmware is the last without hardware kit for parking surveillance? Now my version is 1.1.20ww. When I paste the downgraded firmware to sd card and insert it in dash cam it just doesn't start. Maybe someone know the solution? Thanks!

 

[Kaspiuxz]

I tried to downgrade gradually and it worked, but now I'm stopped at 1.0.10ww firmware. I try to downgrade to 1.0.6ww, but it doesn't start. Maybe there are another update from 1.0.6 to 1.0.10? Does someone have it?

 

[albioza]

I have the same issue probably. I can downgrade down to 1.0.10 and on attempt to flash 1.0.6 or 1.0.2 or 1.0.0 after inserting SD Card and connecting power it lights in blue (solid for few seconds) and then turns red for infinity amount of time until I power off camera manually.