I have installed /e/OS 1.0-20220526188859 and downloaded update /e/OS 1.7 and I get this
Opening update package…
Verifying update package…
E: footer is wrong
E: Signature verification failed
E: error: 21
Installation aborted.
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Which Teracube do you have, 2020 2e or 2021 emerald?
Maybe the download was not complete. Download again and see what happens.
2e 202011T2E00369
Once a day last 4 days I have downloaded update and try install, get the same error message.
Opening update package…
Verifying update package…
E: footer is wrong
E: Signature verification failed
E: error: 21
Installation aborted.
Missing information regarding zip names and what you were doing at time of errors.
Using assumptions, were you trying to manually flash (adb sideload / apply update) the builds? If so that will not work.
A quick search of the errors tells me that builds that start with IMG (such as IMG-e-1.7-q-20230110250405-stable-2e.zip) are (generally?) not flashable zips. You need to fastboot flash them per instructions here…
Install /e/OS on a Teracube Teracube 2e (2020) - “2e”
Others may confirm.
Just to add background … I think this is the issue where #2e failed to upgrade from version 1.0 as mentioned in this thread: Attempting to upgrade Terracube 2e from version 1.0 to 1.1 (2020 model)
A fix from /e/ support is mentioned in Post # 12.
Attempting to upgrade Terracube 2e from version 1.0 to 1.1 (2020 model) - #12 by alexis.
This Gitlab issue covers the background in further detail.
No I did not try manually flash (adb sideload / apply update). I purchased the phone just for doing OTA only and not having to manually flash adb sideload updates. Received update notification /e/OS 1.7 and tried OTA update only in Settings/System updates and after reading what I need to do, the phone has been put in the junk bin no /e/ for me. Thank you marcdw and aibd for replying to my post.