How to repair Fiat Stilo instrument panels with unreadable display using SEI-DISP329 replacement

Is Fiat Stilo odometer display unreadable? Is Fiat Stilo dashboard LCD screen not working?

This can be an issue on Fiat Stilo instrument clusters.

This tutorial shows how to replace the failing LCD display of Fiat Stilo speedometers with SEI-DISP329 LCD screen, avoiding the replacement of the whole instrumentation.