inav signal weak

[Manilablock]

I have the factory installed inav unit in my 2011 Alterra.
It has been updated religiously because I rely on this unit (since I am a foreigner).

At the start of the rainy season, the signal has progressivly become more and more weak.
Ten days ago, I lost the signal altogether.

I would appreciate any suggestions you may have for me.

Thank you.

Ciao!

Possible also is the GPS antenna have fallen out of the area where it was previously mounted (normally with double sided tape) under the dashboard, suggest have a electrician to trace the GPS antenna.

But check if you can ask the dealer to fix it under warranty since your unit is only 2 years old.