Motorola ALL GSM, CDMA Service Manual
Consumer
Solutions 
&
Support 
US Competency
Center
600
North US
Highway 45
Libertyville,
Illinois
60048
Website: gs.mot.com
|
FIELD SERVICE BULLETIN |
FSB Number: |
LVCCFSB2004 – 148 (Rev. A) |
Author: |
Rajesh Verma |
Date: |
July 20, 2004 |
Total No. of Pages: 3 |
|
Subject: |
Intel Flash IC – Erase Disturb (checksum error) |
Model Affected: |
ALL GSM, CDMA, 3G handsets using Intel 128M or 256M |
|
Flash IC’s |
Level of Repair: |
3, 4 |
Problem
Service is aware of an issue, identified in the 1st 200 NPI Analysis of the all GSM Triplets models, with the Flash IC. A large percentage of the customer returns, returned with complaints of “No Power Up” were found to display the following symptoms:
1)The unit will not power up with either the phones battery or when using an external supply through the CE connector;
2)The unit will display “Checksum Error Found” when ran through FDI tool.
Analysis revealed the failure was caused by a faulty Intel Flash IC due to Erase Disturb failure mechanism. The following parts are affected
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MOTOROLA INTERNAL USE ONLY |
Page 1 |
Consumer
Solutions
& Support 
US
Competency
Center
600
North
US
Highway 45
Libertyville,
Illinois
60048
Website:
gs.mot.com
Solution
As of June 18, 2004 this issue has been eliminated (zero DPM) by implementing a screen by Intel at the post assembly electrical test step for all Tyax Flash IC devices. See below example on how to verify date code from the flash IC. The example illustrates part manufactured in week 03 of 2003.
Plant |
Year |
Week |
Serial |
5 |
3 |
03 |
0238 |
Note: Example how to read date code
From the 2nd line of Flash IC.
Good Material = WW26 ‘2004 (X426YYYY)
Field Service Action
Customer Returns:
The following procedure must be preformed on all “No Turn On” GSM
Triplets/CDMA/3G phones returned through service.
1)Ensure that the “No Turn On” failure is not hardware related. If the failure is not due to hardware, then continue to Step 2,
2)Run the unit through the FDI tool. Refer to FSB LVCCFSB2003-68
Rev B for detailed description of FDI Corruption Analysis
3)If the unit shows “Checksum Error’ during FDI analysis procedure(s) then, per the normal Service Procedure, replace the Flash IC (refer to the table above for the part number reference).
Note: Flash replacement does not apply to CDMA products. CDMA units determined to contain a bad flash need to be swapped due to anti-cloning protection.
4)If the tool does not display “Checksum Error”, then follow the normal troubleshooting techniques per the customer complaint
a.If unit shows a different error when ran on the FDI Tool, refer to the FSB LVCCFSB2003-68 Rev B.
MOTOROLA INTERNAL USE ONLY |
Page 2 |
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