Table of Contents
Advertisement
SIM1 / SIM2 / SD Card - Troubleshooting
In the event of SIM issue:
•
Make sure the connection between SIM/SDCARD board and main board.
•
Inspect all SIM circuit components on main board and BtoB connector from both boards.
•
Check SIM power at C4204 (for primary SIM) and at C4224 (for secondary SIM) and Detection signal
TRAY_DETECT at C5803. TRAY_DETECT is high (1.6V~1.9V) when tray is inserted.
•
Check SIM bus interface signal activities during SIM access (UIMx_RST, UIMx_CLK, UIMx_DATA)
•
Do a thorough visual check on SIM connector M4201 and M4202 for any sign of mechanical contact issues
•
Change to new SIM/SDCARD board
In the event of SD Card issue:
•
Make sure the connection between SIM/SDCARD board and main board.
•
Inspect all SD Card circuit components on main board and BtoB connector from both boards.
•
Check SDCARD power at C4413( 2.7V ~ 3.6V ) and Detection signal TRAY_DETECT at C5803. TRAY_DETECT
is high (1.6V~1.9V) when tray is inserted.
•
Check SD bus interface signal activities during SD Card access (SDC_DATAx, SDC_CMD, SDC_CLK)
•
Do a thorough visual check on SD connector U4200 for any sign of mechanical contact issues
•
Change to new SIM/SDCARD board
MOTOROLA CONFIDENTIAL
Moto Z Play (Droid)/Moto Z Play
BASEBAND TROUBLESHOOTING GUIDE
Advertisement
Table of Contents
Troubleshooting
