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