A match from https://images.ecloud.global/dev/miatoll/ would be e-1.8.1-r-20230206257804-dev-miatoll.zip, indeed Android R.
We are currently given this advice about performing a manual Upgrade from, Week 07 2024: Development and Testing Updates, slightly hidden, under
Misc information
Upgrade guides removed
We have removed the upgrade guides from our Documentation site . Users who are planning to upgrade the /e/OS installation on their device are now advised to
- Follow the instructions given in the command line install guide
- If suggested in the guide, first install the stock ROM
- Next if required flash additional partitions
- Finally a fresh install of the latest /e/OS build
- Follow the instructions for your devices. The instructions would be different across devices.
- This advice is specific for OS upgrades ie. from a lower OS version to a higher version for e.g. /e/OS R to /e/OS S or Android 11 to Android 12.
The install page is here: https://doc.e.foundation/devices/miatoll/install
Likely the Upgrade would be required, but there is this troubleshooting guide https://doc.e.foundation/support-topics/app_lounge_troubleshooting.