T350 SOLO Firmware error

[Legsolution]

Hi, I'm trying to upgrade from Unleashed to Solo but I always get the invalid image error, even when changing browsers (chrome, firefox, explorer).
My AP is T350c
Firmware 200.13.6.1.319

I tried to upgrade with these files RUCKUS
Solo Access Point 118.2.0.0.875 Release (T350c)
RUCKUS Solo Access Point 116.0.0.0.1543 (GA) Software Release (T350c)

Thanks