ViewSonic ViewPad 10pro ViewPad 10 Pro User Guide (English), For 3G Only - Page 25

Appendix C: Troubleshooting Symptom Possible Causes Remedy Touch panel is not functioning properly 1. Environmental conditions are significantly different from factory default. Perform touch screen recalibration. 2. Touching surface does not provide sufficient electrical charge. - Ensure finger is dry and clean. - Ensure stylus pen is approved for capacitive touch panel use. Battery is not charging 1. Using wrong AC power adapter with insufficient power rating or incorrect plug. Use AC power adapter provided with this device. 2.Using USB. This device does not support USB battery charging. No 3G data connection 1. APN is not in device's APN list. 2. 3G service is not activated. Add APN manually. Check your network service provider. 3. Damaged or missing SIM card. Ensure a valid 3G SIM is properly inserted. Multi Touch not working 1. Using Windows 7 Starter or Basic Upgrade OS to Windows 7 (Single touch only) Home Premium or higher. 2. Application is not support Use an application that supports multi touch function. 3. Improper hand gesture Ensure the hand gesture is properly performed. 20