CSB 1280 3 Invalid Battery Issue

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MOTOROLA UK
REDWOOD
CROCKFORD LANE
CHINEHAM BUSINESS PARK
CHINEHAM
BASINGSTOKE
UNITED KINGDOM RG24 8WQ

CSB-1280-3
Country : UK
Date : 3/23/2007
APC : F77
Repair Level : 3

Title

W220 - GSM - Invalid Battery Issue

Model Effected

W220

PROBLEM

Service is aware of an issue, identified in the GSM W220 MOL analysis, with customer returns complaints of “Battery - Invalid battery”
when charging phone. The root cause analysis identified an issue on U202 IC PN SA03025B0A0. ADIN1 pin of U202 had ESD/EOS
issue. So the battery temperature reading will be wrong to show the "invalid battery" message and stop charging.

SOLUTION

The supplier Texas Instruments is working to find out the solution for this issue. A new revision of this FSB will be released to
complement the solution.

FIELD SERVICE ACTION

When servicing any W220 customer returns with a customer complaint of “Battery - Invalid battery”:

1. Check if display is presenting "Invalid Battery" message when charging phone;

2. If yes, Measure impedance between Ground and Bat_Temp pin of battery connector showed on the picture below;

3. If the impedance between these 2 pins is high (not shorted), please proceed to normal troubleshooting techniques;

4. If the 2 pins (Ground pin and BAT_TEMP pin) of battery connector are shorted (low impedance), please replace U202 IC PN
SA03025B0A0.

5. If after replace U202 IC phone still present "Invalid Battery" message when charging phone, please proceed to normal

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troubleshooting techniques.

Service Inventory

NA

CALL CENTER ACTION

User complaint of "Battery - Invalid battery" may be caused by issue on U202 component and requires replace of U202. Supplier Texas
Instruments is working on corrective action. A new revision of this FSB will be released to complement the solution.

When responding to customer inquiries on W220 with complaints related to “Battery - Invalid battery”, please direct the customers to
have their phone serviced as per this FSB.

SERVICE ENTRY CODE
Global Service Codes

Complaint Code:

BAT04 - Battery - Invalid battery

Problem Found Code: BAT04 - Battery - Invalid battery

Reference Designator:U - Integrated Circuit And

Repair Code:

REP06 - Replace Electrical Part - CSB/ FSB

If applicable, note this bulletin number on warranty claim forms and make necessary changes to service manuals.2007-121
© Copyright 2007 Motorola Inc. All Rights Reserved.

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