Microsoft Lumia 435 User Manual page 6

Note: Turn the device off and disconnect the charger and any other device before
removing any covers. Avoid touching electronic components while changing any covers.
Always store and use the device with any covers attached.
1. Switch your phone off.
2. Hold your phone by the top corners in one hand, and with the thumb of your other hand,
press the back cover, and remove it.
Do not use any sharp tools, as they may damage the screen.
3. If the battery is in, lift it out.
4. Open the SIM holder, and put the micro-SIM in place with the metal contact area down.
Close the holder.
5. If you have a memory card, push the card into the memory card slot.
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