Microsoft Lumia 640 LTE Single Sim User Manual

Quick Guide
Lumia 640 LTE

9264605 Issue 1.0 EN RM-1074

Keys and parts

Important: For important info on the safe use of

your device and battery, read “For your safety” and
“Product and safety info” at www.microsoft.com/
mobile/support/ before you take your device into
use. The same info is available in the in-device user
guide. Select

1 Front camera
2Earpiece
3 Volume keys
4 Power/Lock key
5Microphone
6 Micro-USB connector
7 Audio connector AHJ 3.5 mm
8 Camera lens
9 Camera flash
10 Loudspeaker
11 Antenna area

Lumia Help+Tips.

Some of the accessories mentioned in this user
guide, such as charger, headset, or data cable, may
be sold separately.

Avoid touching the antenna area while the antenna
is in use. Contact with antennas affects the
communication quality and may reduce battery life
due to higher power level during operation.

Get started

Before you start using your phone, remove the back
cover and battery to insert the micro-SIM card (also
known as the mini-UICC card).

Remove the back cover and battery

Make sure the phone is switched off.

1. At the top corner of the phone, put your finger in
the seam between the screen frame and the back
cover. Do not use any sharp tools, as they may
damage the phone.

2. Press the middle of the back cover, bend the cover
open, and remove it.

3. If the battery is in, lift it out.

Insert the SIM and memory card

1. Slide the micro-SIM card into the SIM slot with the

metal contact area down.

2. If you have a memory card, slide the card into the
memory card slot.

It is recommended that you use a fast microSD card
from a well-known manufacturer.

Use only original micro-SIM cards. Use of
incompatible SIM cards, or use of SIM card adapters,
may damage the card or the device, and may
corrupt data stored on the card.

Replace the battery and back cover

1. Line up the battery contacts, and put the battery

in.

2. Press the bottom edge of the back cover against
the bottom edge of your phone, and snap the cover
into place.

Charge the battery

Plug a compatible charger into a wall outlet, and
connect the micro-USB end to your phone. You can
also charge your phone from a computer with a USB
cable.

If the battery is completely discharged, it may take
up to 20 minutes before the charging indicator is
displayed.

Set up your phone

1. To switch your phone on, press and hold the

power key, and follow the instructions shown on
your phone.

2. When asked, create your Microsoft account if you
don’t have one already, or sign in with your existing
Xbox, Hotmail, or Outlook username and password.
Make sure you remember the credentials for the
Microsoft account you added to your phone.

You need a Microsoft account to back up and
restore your phone, to buy, install, and update apps,
and to access some Microsoft services, such as
OneDrive.

Allow some minutes while your phone installs all its
features.

Tip: If your screen switches off, press the power

key, and drag the lock screen up.