Samsung SM-T820 User Manual page 103

Troubleshooting
Sound echoes during a call
Adjust the volume by pressing the Volume button or move to another area.
A cellular network or the Internet is often disconnected or audio
quality is poor
Ensure that you are not blocking the device's internal antenna.
When you are in areas with weak signals or poor reception, you may lose reception. You
may have connectivity problems due to issues with the service provider's base station.
Move to another area and try again.
When using the device while moving, wireless network services may be disabled due to
issues with the service provider's network.
The battery icon is empty
Your battery is low. Recharge or replace the battery.
The battery does not charge properly (For Samsung-approved
chargers)
Ensure that the charger is connected properly. e charger is connected properly. e charger is connected properly.
If the battery terminals are dirty, the battery may not charge properly or the device may ery terminals are dirty, the battery may n ery terminals are dirty, the battery may
turn off. Wipe both gold-coloured contacts and try charging the battery again. f. Wipe both gold-coloured contacts and ipe both gold-coloured contacts and
The batteries in some devices are not user-replaceable. To have the battery replaced, visit e batteries in some devices are not user-r n some devices are not user-r
a Samsung Service Centre. a Samsung Service Centre. a Samsung Service Centre
The battery depletes faster The battery depletes faster The battery depletes faster than when first purchased
When you expose the When you expose the battery to very cold or very hot temperatures, the useful charge When you expose the batte
may be reduced. may be reduced. may be reduced.
Battery consumption increases when you use messaging features or some applications, Battery consumptio Battery consumptio
such as games or the Internet. h as games o h as games o
The battery is consumable and the useful charge will get shorter over time. tery tery
ace the battery. e the battery.
t charge properly (For Samsung operly (For Samsung
103
, you may lose receptio , you may lose reception. You
service provider's base statio service provider's base station.
etwork services may be disabled due to etwork services may be disabled due to
r aud r audio