For the PCG-71311W chassis, the corresponding model series is typically the (e.g., VPCEH3B4E, VPCEH35EN, etc.).
printed on the lower chassis sticker is used for software support. It is a regulatory chassis number that identifies the physical frame, design layout, and shell. How to Find Your Actual VAIO Model Name sony pcg-71311w drivers
This is unique to Sony laptops. The hardware drivers alone aren't enough for features like: For the PCG-71311W chassis, the corresponding model series
The code on the sticker is the "Chassis Code" or Manufacturing ID. The model name used for driver support is usually different. For the PCG-71311W chassis
Use these three locations to find your system's valid tracking model name:
Install this FIRST before any other drivers.