Zte Zmax Quick Start Manual page 13

Your device may not work if you alter its original
software. This device will only operate with
firmware versions that have been approved for
use by MetroPCS and the device manufacturer. If
unauthorized firmware is placed on the device it
will not function.
Hearing aid compatibility: This phone has been
tested and rated for use with hearing aids for
some of the wireless technologies that it uses.
However, there may be some newer wireless
technologies used in this phone that have not
been tested yet for use with hearing aids. It
is important to try the different features of this
phone thoroughly and in different locations, using
your hearing aid or cochlear implant, to determine
if you hear any interfering noise. Consult your
service provider or the manufacturer of this
phone for information on hearing aid compatibility.
If you have questions about return or exchange
policies, consult your service provider or phone
retailer.
Your phone's GPS system is enabled by default
in order to permit use of planned future services;
see your phone's manual for instructions should
you wish to disable your GPS for non-911
purposes.
11