I had the exact same issue, being stuck with 9.1.0.346 on my LYA-L29.
Today I removed the 2 SIM cards I had in my phone (One from DIGI Romania and the second from Lyca Belgium) and inserted only one SIM from Orange Belgium and instantly I received notification about software update 9.1.0.358 (C431E10R1P16) , after that came 10.0.0.180 (C431E7R1P5), then 10.0.0.196 (C431E7R1P5)
I suggest you to insert a SIM card from a large service operator.