Nokia 5140 Manuales De Servicio

NPL-4/5

Company confidential 

Troubleshooting Instructions

Nokia Customer Care

Page 66

Copyright © 2004 Nokia Corporation. All rights reserved.

Issue 1 05/04

Flash faults

Phone doesn't set 

FlashBus TxD line HIGH after the 

startup?

Measure BSI pulse during 

Flash programming.

Is it OK?

Phone doesn't set 

FlashBus TxD line LOW after the 

line has been set HIGH

Measure FBusTx line during 

Flash programming (TP 411)

Is it HIGH (1.8V)?

Check BSI 
line, X100, 

C100, R203, 

C220, R206

Check 

FBUSTx line. If 

OK

Change 

UEMEk

Change UPP

Flash faults 

2

Yes

No

Yes

No

No

Yes

Yes

No