Zte Z331 User Manual page 75

Problem
Unable.to.
select.certain.
features
Battery.will..
not.charge
You.cannot.
switch.your.
phone.on
(U)SIM.card.
error
Troubleshooting.and.FAQs
Possible Causes
Your.service.provider.does.
not.support.these.features,.
or.you.have.not.applied.for.
services.that.provide.these.
features.
The.battery.or.battery.charger.
is.damaged.
The.phone's.temperature.is.
below.32°F.(0°C).or.higher.
than.113°F.(45°C).
Poor.contact.between.the.
battery.and.charger.
Battery.power.has.been.
depleted.
(U)SIM.card.malfunction.or.
damage.
(U)SIM.card.inserted.
improperly.
Debris.on.the.(U)SIM.card.
contacts.
Possible Solution
Contact.your.service.provider.
Contact.the.dealer.
Adjust.the.battery.charging.
environment.to.avoid.
temperature.extremes.
Check.all.connectors.to.make.
sure.all.connections.have.
been.properly.made.
Recharge.the.phone's.battery.
Take.the.(U)SIM.card.to.your.
service.provider.for.testing.
Insert.the.(U)SIM.card.
properly.
Use.a.soft,.dry.cloth.to.clean.
the.(U)SIM.card.contacts.
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