User Guide

6015/6015i/6016i/6019i (RH-55), 6012 (RM-20)
Troubleshooting - Baseband Nokia Customer Care
Page 32 ©2004 Nokia Corporation Company Confidential Issue 1 - Revision 002 09/2004
Flash Programming Does Not Work
Flash
faults
Phone does not set
Flashbus TXD line
high after startup
Measure BSI pulse
during Flash
programming. Is it
OK?
Check BSI line X100,
C230, R203, R202
Measure FBusRxO
(2.78V) signal during
flash programming from
production pattern and
FBUSRXI test point
(1.8V). Is it the same?
Reflow or change
UEM
Change UEM
Does the phone set
Flashbus TXD line
low after the line has
been high?
Flash
faults,
page 2
YES NO
YES
NO
NO
YES
Measure FBusTxO
(2.78V) during flash
programming from
production pattern and
FBusTXI (1.8V) test
point. Are they the
same?
NO
Measure MBus (2.78V)
from production pattern
and MBusTX and
MBusRX test points. Are
they the same?
Change UPP
Is there a pulse on
FBusTXI?
Is there a pulse on
FBusTxO?
Reflow or change
UEM
Reflow or change
UEM
YES
NO
NO
YES
NO
YES
NO
YES