We understand the frustration and are sad that you are not happy with your phone. Let's get this fixed. Have you tried to turn off the phone and back on? When did this start? Any changes on the phone?
SITALLNITER, we certainly want you to enjoy your Moto Z2 Force Smartphone. Hearing that your device's back button is missing is a very urgent matter. We'll do everything we can to get this issue resolved as quickly as possible. I'd like to make sure that your device has its most updated software version (NDX26.122-58-8). Please check your device to ensure that this is its most updated version. This website link will assist you at: http://vz.to/2vJk5A2. Please keep us updated on your progress. RobertC_VZW
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