Samsung Galaxy Note 3 SM-N900 No Service, No Network Solution

Samsung Galaxy Note 3 SM-N900 No Service, No Network Solution Schematic, Diagram , Circuit

Samsung Galaxy Note 3 SM-N900 No Service, No Network Solution Step by Step 

Step 1

No service

Check memu setting

Menu → applications → setting → wireless and network →

mobile networks → network mode → setting is auto mode ?

Step 2

Menu → Phone → Keypad →

*#1234# → check Phone version →

PHONE : N900XXXX or

PHONE : unknown

Check the contact of antenna.

(Sub FPCB)

Step 3

Check the CP V_BAT

L300,L301,L302,C300 = 3.6~4V

Replace the L300,L301,L302,C300

Step 4

Check the CP_VSD1_, CP_VSD2_

CP_VSD1 (C352) =0.9~1.4V

CP_VSD2 (C353) = 1.8V

Replace the UCP300

Step 5

Change the board

END

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