User Guide

2115i/2116/2116i (RH-66)
Baseband Description and Troubleshooting
Page 38 ©2005 Nokia Corporation Company Confidential Issue 1 03/2005
Flash Faults
Flash
Faults
Does the mobile
terminal set the
Flashbus TXD line
high after the
startup?
Measure BSI pulse during
Flash programming. Is it
OK?
Check BSI line at
X2000, C2000, and
C2003.
Measure FBusRX (2.78V)
signal during flash
programming from
production pattern. Is it
OK?
Reflow or
change UEM
Does the mobile
terminal set the
Flashbus TXD line
low after the line has
been high?
Change
UEM
Flash
Faults
Page 2
YES NO
YES
NO
NO
YES
NO
YES
Measure test point
FBusTx (J2805) (1.8V) and
production pattern signal
FBusTxO (2.78V) during
flash programming. Are
they the same?
Measure MBus (2.78V). Is
it OK?
Change UPP
Is there a pulse
on J2805?
Is there a pulse
on FBusTx?
Reflow or
change UEM
NO
NO
YES
YES
NO
NO
YES
YES