Lenovo VIBE X2 Servis Kılavuzu - Sayfa 20
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3.9 Communication signal abnormality
Communication signal
abnormality
Boot into the engineer test
mode to make sure whether
the phone has the SN or
IMEI number.
Check
connection status between
the ANT cable and the RF
connector is normal, and
reconnect
whether
working normal.
Try to download
program, whether
the downloading
is successful.
Check the modem circuit
and
intermediate frequency is
good.
N
whether
the
the
connector
the
phone
is
N
N
whether
the
Y
Write the SN or
IMEI number.
reconnect the
Y
connector
Find
the
issue
Y
according
to
download tool message.
part
the
20