Nokia 638 User Guide

If the power does not come on or stay on:

•

Make sure the battery is properly installed and
charged.

•

Be sure that the contacts on the battery and the
charging stand are clean.

•

Battery charge may be too low for operation.
Check the display and listen for the low battery
warning tones.

If the power comes on, but the phone does not work:

•

Check the NO SVC indicator, you might be out of
the cellular service area.

•

Make sure that the antenna is properly installed
and if your phone has an extendable antenna,
make sure that the antenna is extended to its full
length.

•

Check if there is an error message on the display
after switching on. If so, contact your local dealer.

Weight :

6.93 oz. (196 g) with 470 mAh 
Slim NiMH battery, or
8.41 oz. (238 g) with Extended 
950 mAh NiCd battery

Transmitting Power: 0.6 W (+ 2 db - 4 dB) 

Operating Voltage: 

4.8 V (internal battery),
110 V (AC), 12 V (car)

Frequency Band:

824.040-848.970 MHz (Tx)
869.040-893.970 MHz (Rx)

Number of Channels: 832

Memory Locations:

0-40

Memory Capacity:

Locations 1-20

16 digits
16 letters

Locations 21-40

32 digits
16 letters

NHA-4NG Nokia 638_AU 
Authentication version
US English 9351137
Issue 3

Version: 0.7, Date: 11 (2) Dec.
1996
Status: ToL, JaK, JaG, SIR, JoF

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