Troubleshooting & support
Philips Sonicare DiamondClean Prestige 9900 Power Toothbrush with SenseIQ
HX9994/11
HX999C
Manuals & Documentation
Frequently Asked Questions
- How do I connect my Philips Sonicare 9900 Prestige toothbrush to the Sonicare app?
- How does the Scrubbing Feedback feature work?
- How does the Adaptive Intensity feature work?
- How many buttons are on my Sonicare 9900 Prestige?
- How do I activate the Scrubbing Feedback on my Philips Sonicare?
- How do I turn the Adaptive Intensity feature on and off?
- How does Sonicare 9900 Prestige work with the app?
- What features can I activate or deactivate from the toothbrush handle?
- How do I know when to replace the brush head?
- How does the BrushPacer work on my Philips Sonicare Prestige Toothbrush?
- How do I change brushing modes on the Sonicare app?
- How can I safely dispose of the battery from my Sonicare 9900 Prestige toothbrush?
- Which devices are compatible with the Sonicare app?
- How do I enable or disable the pressure sensor on my Sonicare?
- How do I charge my Sonicare toothbrush?
- How do I charge my Sonicare 9900 Prestige handle on the charging base?
- Can I use Sonicare 9900 Prestige if I wear braces or have dental modifications?
- How do I charge my toothbrush handle with the travel case?
- How do I register my Sonicare toothbrush?
- How do I change the intensity settings on my Sonicare toothbrush?
- Do I need an Alexa device to reorder replacement brush heads for my Sonicare?
- How do I reorder Sonicare replacement brush heads with Alexa?
- How does the pressure sensor feedback work on my Sonicare toothbrush?
- Can I sync the Sonicare app with the Apple Health app?
- How do I disable the Sonicare brush head reordering service?
