TCL onetouch 4021 - Troubleshooting

27 28
9
Troubleshooting .............
Before contacting the service centre, you are advised
to follow the instructions below:
• You are advised to fully charge the battery for
optimal operation.
• Avoid storing large amounts of data in your phone
as this may affect its performance.
and carry out the following checks:
My phone can't be switched on or is frozen
• Check the battery contacts, remove and reinstall
your battery, then turn your phone on.
• Check the battery power level, charge for at least
20 minutes.
My phone has not responded for several minutes
• Restart your phone by pressing and holding the End
key.
• Remove the battery and re-insert it, then restart the
phone.
My phone turns off by itself
• Check whether your phone is locked when not in
use, and make sure you don't accidentally turn off
your phone when locking it by pressing the End key.
• Check the battery charge level.
My phone can't charge properly
• Make sure you are using a TCL battery and the
charger from the box.
• Make sure your battery is inserted properl. It must
be inserted before plugging in the charger.
• Make sure that your battery is not completely
discharged; if battery power is empty for a long time,
it may take around 20 minutes to display the battery
charger indicator on the screen.
• Make sure charging is carried out under normal
conditions (0°C to +40°C).
• When abroad, check that the voltage input is
compatible.
My phone can't connect to a network or "No
service" is displayed
• Try connecting in another location.
• Verify the network coverage with your operator.
• Check with your operator that your SIM card is valid.
• Try selecting the available network(s) manually.
• Try connecting at a later time if the network is
overloaded.
My phone can't connect to the Internet
• Make sure that the internet access service of your
SIM card is available.
• Check your phone's Internet connection settings.
• Make sure you are in a place with network coverage.