Mio S20 User Manual page 20

use the soft cotton fabrics stained with water or neuter soap to brush cell phone .
 Please use the original manufacturer's recommended accessories.
 If the phone or its parts is out of order, please look for professional maintenance to repair
your phone.
15.2Maintenance of the battery

New battery can achieve the best performance after two or three full charge and discharge.

Batteries can be charged and discharged hundreds of times, but will ultimately be ineffective.
When the the talk and standby time is significantly short,you need to purchase a new battery.

When the charger is not using, please cut off power supply. Don't connect battery to the
charger more than a week,because excessive charge will shorten the battery life.

if the phone is no used in a long time, please keep charging at least 20 minutes or more
before used again.

To make the battery life as long as possible, you can discharge the battery by turning on
until turning off automatic . Don't try to use other unauthorized method to discharge.
 When the battery is low, and can only keep a few minutes of talk time, mobile phone will
make sound warnings. when the battery is used up, phone will automatic shut down .

If battery is used more than one and a half years, you'd better replace batteries.don't abandon
used batteries and just give it to local recovery site .
15.3help
If someting abnormal happened when you use the phone, please solve refer to the table below ,
if there is still some questions, please contact network operator.
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