In fact I had a similar situation, I tried to downgrade from 3.5.4 back to 3.5.4 beta (Onyx removed the auto-delete feature in the official version, I tried to go back to the beta version which retained the feature), I flashed super.img directly in EDL mode and it wouldn't boot up, luckily the recovery worked fine (long-press on the power button). Forced shutdown, power on again, long press the power button for about 10 seconds, and then a quick short press until it enters recovery mode) because the super image is no longer the latest version, I successfully used adb sideload to install the 3.5.4 official version of the image.
So, you can also try to brush an older version of super.img into your current model in edl mode, then use adb sideload to sideload the latest version of the firmware zip.
Translated with DeepL.com (free version)
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