K630 - V640 - K660
1215-3608 rev. 1
TROUBLESHOOTING
TROU
B
L
E
S
H
O
OTIN
G
START
Step 1:
Try to recover the phone
using EMMA III SW
Press keys 2 and 5
Connect USB Cable
Run pre-config 1 or 2
Run DPY/Z
Step 2:
Use TRS Fixture
Connect VBATT
NOTE:
Do NOT use
DCIO/SEPI Cable!
S2400
Not pressed
Using more than
1mA
current
Try to trace the
faulty component
with freezing spray
N1002 or N1210
getting hot
K660:
Replace
N1002 or N1210
K630/V640:
Replace
N1210 or
SL 5 Replace N1002
SL 4 Escalate
Yes
SL 5 Remove
N2000
SL 4 Escalate
No
Using more than
1 mA
current
SL 5 Replace
N2000
SL 4 Escalate
No
Try to trace the
faulty component
with freezing spray
Yes
Keep S2400
Pressed or
Connect
DCIO/SEPI Cable
No
32 kHz RTCCLK at
MP 43 (B2100_Pin7)
2.2 Volt at
MP 14 (B2100_Pin1
VDD_LP)
No
K660:
Replace B2100
K630/V640:
SL 5 Replace B2100
SL 4 Escalate
Yes
32 kHz RTCCLK at
MP 22 (ST2105)
SL 5 Replace
N2000
SL 4 Escalate
No
Yes
No
26 MHz
MCLK at
MP R2106
Yes
No
0 Volt
Between Power
Supply GND and
PBA GND
No
SL 5 Replace
R2200
SL 4 Escalate
1.8V DC at
MP 33 (ST2208 VDDE18)
2.8V DC at
MP 36 (R2202
VccA)
Yes
SL 5 Replace
N2000
SL 4 Escalate
No
Yes
Replace
N1200
Check these voltages:
2.6V MP 41 (ST2204 AUDIO26)
2.5V MP 34 (ST2203 VANA25)
2.7V MP 37 (ST2212 VBT27
2.7V MP 38 (ST2213 VDIG)
1.8V MP 15 (ST2217 VCORE18)
1.2V MP 12 (ST2221 VCORE12)
Yes
All voltages
Ok
Try to recover the
phone using
SW Load ITP
Flash process
successful
Yes
SL 5 Replace
D2020
SL 4 Escalate
Yes
Go to
Flash Problems
No
AUDIO26
Voltage
Ok
No
N2400
C2400, C2209,C2430,
C3135,C3136
Short circuit
No
SL 4 Replace
N2400
SL 5 Replace
C2400, C2430,
C3135 or C3136
Yes
SL 5 Replace
N2000
SL 4 Escalate
VANA25
Voltage
Ok
Yes
Go to
Dead Phone
problems part 2
C2326, C2327,
C2328, C2329, C2330,
C2216,D2000
Short circuit
Yes
No
SL 5 Replace
Faulty Component
SL 4 Escalate
Yes
No
No
Yes
Current
consumption more
than 50mA
SL 5 Replace
N2000
SL 4 Escalate
No
Yes
Dead Phone problems part 1
Dead Phone problems
Part 2
(Dead Phone Problems
Part 1 must be finished
before starting here)
VBT27
Voltage
Ok
No
K630/V640:
SL 5 Replace N1400
C2205 or C1409
SL 4 Escalate
K660:
SL 4 Replace N1400
SL 5 Replace
C2205 or C1409
SL 4 Escalate
Yes
SL 5 Replace
N2000
SL 4 Escalate
No
VDIG
Voltage
Ok
Yes
No
K630/V640:
SL 5 Replace
N1400, C2215,
C4213 or C1407
SL 4 Escalate
K660:
SL 4 Replace N1400
SL 5 Replace
C2215, C4213 or
C1407
SL 4 Escalate
Yes
No
Yes
VCORE18
Voltage
Ok
No
Yes
VCORE12
Voltage
Ok
SL 5 Check
C2301 to C2305,
C2307,C2308,
C2311
C2313 to C2319
C2322,C2324,D2000
SL 5 Replace
Faulty Component
and L2200
SL 4 Escalate
No
No
Yes
SL 4 Replace
V2206
SL 5 Replace
N2000
SL 5 Replace
Faulty Component
SL 4 Escalate
Yes
1.8 Volt DC at
MP 15 (ST2217)
No
Yes
SL 5 Replace
C2239
SL 4 Escalate
3.8 Volt DC at
MP 13 (ST2216)
No
SL 5 Replace
C2238 and N2202
SL 4 Escalate
No
SL 5 Replace
N2202
SL 4 Escalate
Yes
Are any of
C2205,
N1400, C1409
Short circuit
Are any of
C2215,C4213,
C1407, N1400
Short circuit
Are any of
C2342 to C2347
or D2000
Short circuit
1.2 Volt DC at
MP 23 (V2206)
No
No
3.8 Volt DC at
MP 24 (L2201)
SL 5 Replace
L2201
SL 4 Escalate
Yes
K630/V640:
SL 5 Replace
L2200
SL 4 Escalate
K660:
Replace L2200
Yes
MP 12 (ST2221)
Short circuit
To PBA GND
Yes
Try to Recover the
Phone by
downloading
ITP SW
Dead Phone problems part 2
Dead Phone Problems
SEMC Troubleshooting Manual
10
(96)