Nokia 8850 Service Bulletin 020

CONFIDENTIAL 1 (3)

Nokia Mobile Phones Service Bulletin No. SB-020/16.03.00
Technical Support, Europe & Africa

NSM-2

RTC-BATTERY MODIFICATION

If there are complaints that date and time have to be set again after removing
the battery for a short period of time and RTC-battery is properly in its place,
it is possible that spring contacts does not work in exactly right way. In this
cases please follow the procedure described on page 2 and 3, also when
replacing RTC-battery with a new one.

NSM-2 SB-020

Plus (short) Spring Bending

CONFIDENTIAL 2 (3)

Using tweezers take a grip of
short spring.

During all following operations
(also Minus spring bending)
use your thump to push backup
battery cell toward the keymat
to prevent it get loose.

Bend spring upwards.
Make sure bending will

happen at the area which
has the original bending.

NSM-2 SB-020

Angle between bent spring and
keymat backside is approximately
45 degrees.

45