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I'm trying to update to a previous stock image (from TRB2_R_00.07.03.2 to TRB2_R_00.07.02.1)

First, I tried via the WebUI but it shows a popup with the following message: 

                                                            INVALID IMAGE


                                                                                                                               An unexpected error occurred 

Then I tried using the CLI (with sysupgrade) but it says this:

Mods found: 

FTDI serial chip detected but fw does not support it

This firmware is unsupported by hardware

Image check failed.

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Hello,

It seems that your TRB245 contains FTDI chip and older firmwares do not include drivers for it, thus flashing is disallowed.

Could you provide the output CLI command below returns?

  • cat /sys/bus/usb/devices/usb1/1-1/1-1.3/idProduct

If it returns 6001, you will not be able to downgrade lower than 7.02.6.

Best regards,