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Customer Care Europe, Middle East & Africa
SCCE Training Group
Flash update not possible
Failure message "MCU boot failure, serial clock-/dataline failure"
If fault-code from prommer is one of the above mentioned and phone does not stay on, disable watchdog by connecting
R224 to ground and try to update again. If fault remains, check the following:
Check VBB 2.8 VDC at C209/211
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Check VXO 2.8 VDC at C243
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Check VCORE 1.7 VDC at both sides of L200
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Check SLEEPX 2.8 VDC at J308 and PURX 2.8 VDC at R308
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Check 13 MHz system-clock at C303, 0.5 Vpp sinewave
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If only one of the above-mentioned signals is not measurable, continue with section "Phone does not switch on".
If all signals are ok but fault persists, check MBUS/FBUS-lines for shorts to ground:
Check MBUS-line (X201 pad 4) to GND: ~ 100 k?
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Check FBUS_RX-line (X201 pad 2) to GND: ~ 215 k?
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Check FBUS_TX-line (X201 pad 1) to GND: ~ 140 k?
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To ensure function also check resistors R217, R302/304/307, C232 and V204.
If these parts are ok but flash update is still not possible, in all probability MAD or PCB is faulty.
Failure message "Algorithm code fail / alias ID missing"
If this failure message appears while flashing, update your FPS4-box with the latest flash device list and try to flash phone again.
If fault persists even though FPS4-box has been updated, in all probability FLASH D301 is faulty. Note that all phone data
(IMEI, PSN, HW-ID, tuning values and so on) is stored inside of D301. If possible save this data as described on page 14.
Otherwise you have to give the phone a new identity. Do not change D301 if you have no permission to rewrite the IMEI!
Failure message "External RAM failure"
In case of this failure message mainly the SRAM D302 is defect. Change D302 with µBGA rework station and try to
make a software-update once more. If fault persists after changing SRAM D302, change FLASH D301 (remember procedure
described on page 14!) and try to flash the phone again.
In case that also the changing of D301 does not solve the problem, in all probability the MAD or the PCB is faulty.
© NMP 2002
CONFIDENTIAL
NHM—2/5/6
3410
Date 20.11.2002
Checked by:
Customer Care E&A
21 (44)
Repairhints
Version 4.0 Approved
Approved by:
SCCE Training Group
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