Zte R3000 User Manual page 23

saved on the SIM. So, to avoid damaging your SIM or losing data, try not to
touch the metal surface when you're handling it – and keep well away from any
magnetic or electric source.
Here's what you do...
1. Switch off your phone and disconnect any external power.
2. Remove the back cover and then the battery.
3. Hold your SIM on the cut corner, and slide it – face down – into the card holder.
4. Insert the battery.
5. Replace the back cover.
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