I try to use image Armbian_19.11.3_Aml-g12_bionic_legacy_5.3.0_desktop_20191126.img for device with S905X3. TV box is called X96 Air. Unfortunately, I can't make multi boot. I've got error: -- Install /udisk/aml_autoscript.zip ... Verifying update package... E:footer is wrong Update package verification took 0.1 s (result 1). E:Signature verification failed E:error: 21 Installation aborted.   How I can do it?