Guide
LUBA 2, LUBA 2X (most also applies to LUBA 1)
An authorized Mammotion dealer's step-by-step breakdown of docking/charging failures: contact alignment, the power-supply and charging-station LED codes, ant infestations, and how to tell a bad battery from a bad power supply.
Known issue
YUKA (sub-model not stated in most reports), LUBA Mini AWD LiDAR, and LUBA 1 / LUBA 2 (cross-model corroboration)
"Recharge failed (1200)" has been independently reported across the YUKA line, LUBA Mini AWD LiDAR, and LUBA 1 / LUBA 2 units, with several confirmed different causes: a faulty charging station whose light has gone dark, a dock that passes every check and still fails, and an unlevel dock. Check each before assuming a mower-side fault.
Known issue
LUBA 2 (base/2024), also reported on LUBA 1
Four independent LUBA 2 (and one LUBA 1) owners hit the same pattern within weeks of each other: the charging station's green LED goes dark and the mower stops finding its own way home, even though it still charges fine when placed on the dock by hand.
Guide
LUBA 1 AWD (unconfirmed: the 2023 posts say only LUBA)
The eight 2023 LUBA firmware releases, 1.7.2.247 to 1.10.4.223, as Mammotion announced each one on its own Reddit forum.
Known issue
LUBA 1 AWD
LUBA 1 owners report turns that got slower and clumsier after firmware 1.11.1.11, the mower spinning in place or going round in circles at row ends, and crossing no-go zones. Version 1.11.1.16's notes, as an owner quotes them, list a boundary fix and smoother multi-point turns; owners are split on whether it helped.
Guide
YUKA, LUBA 2, LUBA 1 (any RTK/NetRTK-equipped model: this is a signal-placement issue, not model-specific firmware)
An owner's side-by-side test shows light tree canopy over the RTK base station caused repeated positioning loss and missed rows, even while the app reported 40+ satellites. Covers why attics are a bad RTK location, and that moving the base station destroys all saved maps.
Known issue
LUBA 1, LUBA 2 AWD X 5000X
Four independent owners traced a repeated dock-and-retry loop, or a sudden total charging failure, to the same physical part: the charging station's spring-loaded contact pins. Two found a pin physically stuck (heat, then insects); the third found pins that looked clean, and a fix only polishing made, with the power draw at the plug as proof. A fourth freed a merely sticking pin with a little WD-40, as Mammotion's own reply advised.