Level 3 Repair
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Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-11
8-3-3. No Service
No service
END
Check the voltage level
TP409 = HIGH (1.8V)
Yes
Replace the U400
Yes
Check OSC400
Frequency = 19.2MHz
Replace the OSC400
Yes
No
No
Check memu setting
Menu
→
applications
→
setting
→
wireless and network
→
mobile networks
→
network mode
→
setting is auto mode ?
Check the connection of RF coaxial cable
Replace U500
PHONE : I9295XXXX
PHONE : unknown
Menu
→
Phone
→
Keypad
→
*#1234#
→
check Phone version
→
PHONE : I9295XXXX or
PHONE : unknown
Yes
