Unable to upgrade to latest firmware

[simps100]

Hi

I have a USB-C Carlinkit device - it is currently running a custom Firmware with the red UI version. A new firmware from July is available and would like to try it to see if it helps with issues.

OTA update was offered but didn’t work - I read may need to downgrade with script first, I tried that and when I go to 192.168.50.2 now it says I’m on Ver:2020.10.19.4242 and no OTA update is offered now.

Device still does not start update from usb with image called U2W_update.img - am I missing something after running the downgrade script?

EDIT: Just to add im not certain the downgrade happened correctly, it seemed too quick and the lights on dongle didnt flash - after i re-inserted USB into my pc i saw a text file saying version changed to 2020.10.19.4242 but from what i can see im still on the same firmware despite what it says?

thanks Marc

[ludwig-v]

You didn't use the downgrade script but the one to write a custom firmware version.

To upgrade to >= 2021.03.06 from CFW, two solutions:

• Put U2W_Update_2020.11.10.2138_ROLLBACK.img on a USB Key and rename it to U2W_AUTOKIT_Update.img if Red UI or U2W_Update.img if Blue UI, then upgrade back to official 2021.03.06. Only then you can upgrade using U2W_Update_2021.07.05.2308.img renamed to U2W_Update.img
• Put this script (ARMimg_maker & U2W.sh) on a USB Key and U2W_Update_2021.07.05.2308.img and rename it to U2W_AUTOKIT_Update.img if Red UI or U2W_Update.img if Blue UI.