Table of Contents
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2010-12-21
U8500 Maintenance Manual Basic Version V1.1
GSM can't register the
network
Upgrade the software. Then
inspect if it is OK?
N
Inspect if the antenna is OK?
Y
Replace U3501. Then
inspect if it is OK?
N
Replace U3502. Then
inspect if it is OK?
N
Replace U3202. Then
inspect if it is OK?
N
Replace U3801. Then
inspect if it is OK?
N
Replace the U401
Huawei confidential. No spreading without permission.
Y
End
Replace the
N
antenna
Y
End
Y
End
Y
End
Y
End
Internal
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