Lenovo strongly recommends against altering a product's operating system, which includes unlocking the bootloader, rooting a device or running any operating software other than the approved versions issued by Lenovo and its partners. Such alterations may permanently damage your product, cause your product to be less secure and/or cause your product to malfunction. In such cases, neither the product nor any damage resulting therefrom will be covered by warranty.
You must not make or enable any changes to the product that will impact regulatory compliance including FCC, CE, and other national certifications. Certifications are based on the products radio emission characteristics and parameters that affect safety such as changes to the product's modulation, power, bandwidth, operating frequencies, regional settings, audio, charging or proximity detector parameter. Such changes may invalidate regulatory certifications, and the device may no longer be legal to operate in the certifying country.