Flash Faults - Nokia 1265 Description And Troubleshooting

1265 (RH-103)
Baseband Description and Troubleshooting

Flash Faults

Flash
Faults
Measure 19.2MHz
RF CLK at testpoint.
Is it OK?
YES
Can the mobile
terminal connect to
PC via UART?
YES
Check ROM_CS_N
(TP56) and WR_N
(R453). Are they
toggling during
programming?
YES
Memory IC is
defective, phone can
not be repaired and
must be replaced.
Page 28 © 2007 Nokia Corporation
Measure the
19.2MHz CLK
NO
coming from the
TCXO. Is it OK?
YES
MSM is defective, phone can
not be repaired and must be
replaced.
Memory IC is
defective, phone can
not be repaired and
NO
must be replaced.
Is it work?
YES
END
MSM is defective,
phone can not be
NO
repaired and must
be replaced.
Check/ change
NO
VREG_TCXO, Y104
Mobile
NO Terminal is
Jammed
Company Confidential Issue 1 04/2007