Another update on the rollback... my coffee is finally kicking in a bit.
Here's the play-by-play...
I was able to upgrade using your stock firmware repository to "Firmware/U2W_AUTOKIT_Update_2021.08.24.1817.img" (confirmed as spatial stream reduced to 1,
interesting enough, throughout this entire process, the spatial streams remained "1" even after rolling back to the 2020.11.10.2139 firmware).
View attachment 1834215
Per all of the online readme, I tried to use the "Firmware/U2W_Update_2020.11.10.2138_ROLLBACK.img"... No dice.
Does absolutely nothing while running the "U2W_AUTOKIT_Update_2021.08.24.1817.img".
Tried your post above
@VLud , "
VLud said:
Try
U2W_AUTOKIT_Update_2020.12.25.1732_ROLLBACK.img instead then. You can't install CFW straight away due to new encryption, nothing new."
-- This sort of works. I loaded it to the flash drive, inserted it... and no blinking red/green... however, the web interface does how the firmware version changed from 2021.08.24 to...
View attachment 1834221
That said, it did this all within maybe 5-10 seconds? No flashing, no reboot... and it also shows the update available:
View attachment 1834223
Disconnecting the USB flash drive after ~5 minutes of sitting,
it did reboot.
Post-reboot, it still shows v2020.12.25.1733...
Cleaned off the flash drive and downloaded the "Firmware/U2W_Update_2020.11.10.2138_ROLLBACK.img".
This time, after about 5-10 seconds, the version changed to v2020.11.10.2139... No flashing, no reboot, etc...
I waited about 5 minutes (to give it time to finish any processing/flashing) before disconnecting the USB flash drive.
It rebooted after the flash drive was removed, and shows:
View attachment 1834233
Checking for updates does nothing at this point... No rollback option within the settings...
I tried jumping over to the custom firmware "Custom_Firmware/2021.08.24_BASED/AUTOKIT/U2W_AUTOKIT_Update.img". Does nothing, still shows the 2020.11.20 version...
Power-cycled the device and tried loading custom firmware: "Custom_Firmware/2021.04.26_BASED/AUTOKIT/U2W_AUTOKIT_Update.img"
Tried renaming it to "U2W_Update"and power-cycled the device again.
Did nothing, still shows v2020.11.10.2139...
Downloaded "Custom_Firmware/2021.03.06_BASED/AUTOKIT/U2W_AUTOKIT_Update.img"
Kept the filename as the same... (did not remove AUTOKIT).
Did nothing. Renamed to "U2W_Update.img" and again no dice.
This time I thought I'd try doing the latest file again, including the two script files...
Downloaded: "Custom_Firmware/2021.08.24_BASED/AUTOKIT/U2W_AUTOKIT_Update.img"
as well as the two script files:
"Custom_Firmware/Scripts/Downgrade_2021.03.06/ARMimg_maker"
"Custom_Firmware/Scripts/Downgrade_2021.03.06/U2W.sh"
placed all three files on the root of the flash drive... and no luck, no change. Power-cycled the device and still nothing.
I'm a bit out of steps to try. I'm open to testing more if anyone has any input... but I cannot get it to switch over to the custom firmware. Maybe I am missing something (hopefully not obvious)?
I tried to keep it on the OEM firmware, but update again to something later... and now it appears to be stuck on the 2020.11.10 version. It won't take any of the newer auto kit files within /Firmware/ and the OTA update appears to be broken. hahaha <curse word/> --
I'll update if I figure out how to shake it loose.
Rebooting with the USB flash drive inserted, w/ the 2020.12.25.1732_rollback image resolved the issue (oddly enough, seems to have remembered the TOYOTAEB SSID as well, no more AUTOBOX wifi). It's now running that version... Spatial Streams still show "1" instead of "2"... Once the interface showed the newer version, I unplugged the flash drive and it rebooted. Performed OTA update to 2021.03.06.1356 (no typo).... It did its thing and rebooted by itself. It's now running version 2021.03.06.1355 post-reboot... Spatial streams are now showing "2".
I'm planning on keeping it at the 2021.03.06.1355, rollback shows 2020.12.25.1732... unless it's not stable in my truck. Then I'll plan on updating it to something later. Time to go mess with the Podofo...
** all of these tests were performed outside of my car, with the Carlinkit connected to my MBP PD Apple charger.