Garmin EPIX Gen 2 Bootloop when loading maps (Map26)

Hello,

The sw stop loading on maps maybe the map files are corrupted
So my question is how can I delete files or restore it to default or if it's possible to format all maps maybe in hidden service menu or something like that (The Hard reset doesn't resolve the problem)
The Watch is not detected or reconized in Windows maybe if there is a DFU mode or something like that??
Any solution please

Thank You