It may happen for times that your car DVD GPS player encounters problems and you don’t know how to deal with it. If your car DVD uses Android system, I think I can help in some way. Take BMW E91 car DVD for example, I would like to list the problems and tell you what to do. I hope it helps.
Fault condition 1: product cannot be powered on.
- Check whether output cable is correctly connected.
- Check whether built-in CANBUS is reversed.
- Check whether the key is against any foreign body.
- Check whether the fuse is fused.
Fault condition 2: product cannot play disc.
- Check whether protective screw on the top of movement is removed.
- Check whether the disc is rightly placed.
- Check whether the disc is integrity.
Fault condition 3: no picture is displayed.
- Check whether brake cable and car reversing cable are correctly connected.
- Check whether discs are DVD/VCD/MP4.
- Check whether picture brightness/contrast is set rightly.
- Check whether format is set rightly when it’s at TV mode.
Fault condition 4: no sound is heard.
- Check whether the horn cable is correctly connected.
- Check whether the horn cable is short out with power supply or machine shell.
- Check whether the volume is at minimum.
- Check whether is in MUTE mode.
- Check whether sound format is set rightly if it’s at TV mode.
Fault condition 5: touch is useless/touch deviates.
- Check whether the panel is against any foreign body.
- Check whether it’s reversing or braking.
- Check whether it’s in MUTE mode.
- Re-correct touch: after disc ejection in the DVD mode, press STOP and right→left→up→down in turn, the calibration curs or appears, then, press OK following the cursor.
Fault condition 6: remote controller is useless.
- Check whether the separator is pulled.
- Check whether the battery is effective.
- Operate in alignment with remote control receiver.
Fault condition 7: there’s no TV signal or weak signal
- Check whether the TV antenna is at right location
- Check whether local signal is strong enough.
- Check whether DTV system is properly set.
Fault condition 8: navigation cannot function.
- Check whether your product has GPS navigation function.
- Check whether map routes are correctly set.
- Check whether GPS antenna is correctly connected.
If these answers still cannot solve your problems, don’t hesitate to ask a professional for help. Wish you enjoy your car DVD GPS during driving, more information can be know on website: http://www.seicane.com/android-bmw-e91-3-series-touring-head-unit-dvd-player-gps-navigation-system-with-3g-wifi-radio-bluetooth-sia-9203-1