Motorola Moto X Force Troubleshooting Manual page 79

UIM (uSIM) Troubleshooting
• If SIM card errors occur:
– Check orientation on ESD parts
– Inspect card reader for bent or broken contacts.
– Use multimeter to check connection between gold SIM contacts
and pins on back of connector.
– Verify a 0V voltage on Pin "tray_det" (C5803) when card is
removed.
– Verify 1.8 Volts on Pin "tray_det" (C5803) when card is inserted.
– Check for unexpected shorts to ground on M5801 and M5802
pins 1, 2, 3, 6 (factory cable, USB, and battery must be removed).
– SIM1 - Verify R5502, R5503, and R5505 are placed
– SIM2 - Verify R5510, R5512, and R5513 are placed
MOTOROLA CONFIDENTIAL
• SIM1: D5500, D5501, D5502
• SIM2: D5510, D5511, D5512
Moto X Force/DROID Turbo 2
BASEBAND TROUBLESHOOTING GUIDES