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1.2 SIM card Installation
Caution
1. R2811 supports latest 3V SIM card. Apply for a new from the
mobile operator if the old 5V SIM card is used. Most of mobile
operators will replace it with a new without change of the phone
number.
2. Do not bend or scratch on SIM card or contact it with
electrostatic, dust or water.
1.3 Battery Installation
1. DO NOT remove the battery or switch the power off
abnormally when the mobile phone is power-on or in the
charge status, to prevent the mobile phone from damaging or
the data from losing.
①
②
Power off the mobile phone before removing the battery, and then take out the SIM
card.
Take out the SIM card
①
②
Power off the mobile phone before removing the battery, and insert SIM card,
whose side with the cut off corner should be upward.
Insert the SIM card
Summary of Contents for R2811
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