Usb Interface Troubleshooting - Nokia 301 Service Manual

RM-839; RM-840; RM-841
BB Troubleshooting and Manual Tuning Guide
SIM2 not recognized

USB interface troubleshooting

Context
If the phone cannot be detected by PC when the USB cable is inserted, this means that communication
between phone and PC can not be setup. This may be due to soldering issue or a malfunction in the USB
detector (N2320) and ESD protection device.
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