Samsung SM-G975F Service Manual page 110

8. Level 3 Repair
8-4-22. DeX Station
DeX does not work
Check the TA connected to
DeX station
Check the DeX work
properly after changing
another DeX Station
USB Device is recognized
DeX Screen is
displayed to monitor
PBA USB Connection
is OK
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Yes
No
No
Yes
No
Yes
No
No
PBA USB Connection is
Yes
No
No
Yes
No
Connect TA to DeX Station
Change the DeX Station
OK
Yes
Change the U8031
Change the U9001
Clean the Connector
and Connect again
No Clean the
Connector and
Connect again
DeX work
No
Change PBA
Yes
No
END