Side Key for Lava Z40

A Side Key on your Lava Z40 is any physical button cap located on the side of the chassis — including the power button, volume up key, volume down key, or dedicated function keys such as a camera shutter key or Google Assistant key depending on the model. This listing covers the specific side key cap for Lava Z40 as described in the product title. Please verify which specific key you need before ordering.

Yes — if the button cap is the only damaged component. The Side Key cap is the external part that your finger contacts. If the internal switch dome and flex cable are intact, replacing only the cap restores full tactile response and button travel on your Lava Z40. If the button produces no response even with the cap present, the flex cable or switch dome needs attention.

Yes. Side key dimensions, travel depth, and chassis slot dimensions are model-specific. This listing is designed for Lava Z40 only. A key from a different model will not fit the chassis slot correctly and may feel loose or prevent the chassis from closing properly.

Yes — side key caps typically clip into the chassis side slot from the outside once the phone is opened. It is one of the more accessible cosmetic repairs. Basic tools to open the phone are required for proper installation on your Lava Z40.

Yes — a 7-day replacement warranty covering manufacturing defects is included. An unboxing video is mandatory for all warranty claims. Keys with physical damage from installation attempts are not eligible for return. For more information, check out SAHII's Return Policy.