BMW Series BS Product Black Screen/Restart Issues Solution Guide
This guide is compiled based on real user feedback to help you quickly resolve common issues with W702BS and other BS series products.
Important Note: BS products connect to BMW motorcycle original navigation mounts via pogo pins for power supply, with no external wiring required.
Issue 1: Won't Power On
📖 For detailed solutions, please refer to:
Quick Troubleshooting:
- Check pogo pin alignment - ensure device is fully seated on mount
- Clean metal contacts on device and mount with isopropyl alcohol
- Try hard reset (press and hold power button for 10-15 seconds)
Issue 2: Immediate Restart After Power On
Symptoms
Device restarts immediately after powering on, or frequently restarts during use.
Solutions
1. Check Mount Connection
- Ensure pogo pins are fully aligned with motorcycle mount
- Should hear a "click" sound when locked in place
- Check if pogo pins are bent or damaged
2. Clean Metal Contacts
- Clean metal contacts on device bottom with isopropyl alcohol or electronic cleaner
- Also clean corresponding contacts on motorcycle mount
- Remove oxidation and dirt
- Wait until completely dry before installation
⚠️ Issue 3: Device Shuts Down When Starting Engine
Symptoms
- Device powers on normally when key is turned to ACC position
- Device suddenly shuts down the moment engine starts
- Device does not automatically recover after engine starts
- Must remove device from mount and reinstall to power on
Our Initial Assessment
Voltage drops briefly when starting the engine then recovers, but the device still cannot automatically restart after voltage recovery.
Solutions
1. Replace Battery (Most Effective)
- Some customers reported the issue was resolved after replacing with a new battery
- Suspected to be caused by older motorcycles with severely degraded batteries
2. Adjust Usage Habits (Temporary Solution)
- Start the engine first
- Wait for engine to stabilize, then install the device
⚠️ Issue 4: Black Screen with Backlight + Countdown After Starting
Symptoms
- Device shows black screen after starting motorcycle
- Screen has backlight but no display content
- When turning ignition on/off, displays a countdown from 10
Our Initial Assessment
The countdown may indicate insufficient voltage. If the screen has backlight but no display, it could also be a display screen issue.
Diagnostic Method
| Phenomenon | Possible Cause | Solution Direction |
|---|---|---|
| Can see countdown numbers | May be insufficient voltage | Check motorcycle electrical system |
| Backlight but completely no display | May be display screen issue | Contact technical support for screen replacement |
Solutions
If suspected to be voltage issue:
- Visit BMW motorcycle authorized dealer to test electrical system
- Check battery health status
- Check charging system (generator/rectifier)
- Replace battery or repair charging system based on test results
If suspected to be display screen issue:
- Contact Carpuride technical support to request screen replacement
- Provide: device serial number, purchase proof, problem video
Prevention Tips
- Regular contact cleaning: Recommended to clean device and mount metal contacts monthly
- Check battery: Motorcycle batteries typically last 2-3 years, replace aging batteries promptly
- Proper installation: Ensure fully aligned and locked each time
- Avoid forceful removal: Handle gently to avoid damaging pogo pins
When to Contact Technical Support
Contact Carpuride technical support if you encounter:
- Issue persists after trying all solutions
- Issue persists after replacing new battery
- Suspected display screen issue requiring replacement
- Damaged pogo pins
- Frequent restarts after cleaning contacts
Contact Information:
- Email: support@carpuride.com
- Online support: carpuride.com
Please provide: Device serial number, purchase proof, problem video, troubleshooting steps already attempted
Frequently Asked Questions (FAQ)
Q: Why does the device shut down when starting the engine?
A: Our technical team could not reproduce this issue. Some customers reported the issue was resolved after replacing the battery, suspected to be related to aging batteries.
Q: What does the countdown mean?
A: Our initial assessment is that the countdown may indicate insufficient voltage. If you can see the countdown numbers, the display screen itself may be functioning normally.
Q: Why does removing and reinstalling allow it to power on?
A: After removing and reinstalling, the engine has already started and voltage has stabilized, allowing the device to power on normally.
Q: How to determine if it's a voltage issue or screen issue?
A: If you can see the countdown, it may be a voltage issue; if there's backlight but completely no display, it may be a screen issue. We recommend checking the motorcycle electrical system first.
Q: How often should I clean the contacts?
A: Recommended monthly. More frequently in rainy seasons or dusty environments.
