Rolling back on Android — what's actually possible

App version — confirmed rollback path

The Mammotion Android app isn't Google Play-exclusive-locked the way some apps are — older versions are mirrored on third-party APK archive sites, which is the real, working path if a specific app update (not a firmware update) is what broke something for you:

1. Note your current app version from the app's About/Settings screen.
2. Uninstall the current app version (back up any local data the app doesn't sync to your Mammotion account first).
3. Download the previous known-good version from an APK archive — Uptodown, APKPure, and APKCombo are reported to mirror Mammotion's app^{1, 2, 3} (each site's current listing isn't independently confirmed, so search each one directly rather than following a specific deep link). See the Android app version history for a dated list of what Uptodown has mirrored so far.
4. Install the downloaded APK (you'll need "install from unknown sources" enabled).
5. Disable automatic app updates in the Play Store for this app until you're ready to move forward again.

Mower body firmware — no confirmed manual rollback path

This is different, and important to be upfront about: no official or reliably-documented way to manually downgrade the mower's own body firmware exists. It's pushed over-the-air and, unlike the RTK reference station (which does have an official manual tool), Mammotion doesn't publish a sanctioned manual flashing path for the mower body itself.

In practice, for a mower-body firmware regression, the realistic options found so far are:

• Wait — there's at least one documented case (see the multi-point turning report) of Mammotion restoring removed functionality in a later release rather than owners having to revert anything.
• Report the regression via Mammotion's own support channels and the community (roboter-forum.com, r/MammotionTechnology) to add pressure and confirm you're not alone in seeing it.