brush-head
Troubleshooting
Brush head worn on the Philips Sonicare 4100
Source: Apple Support — iPhone troubleshooting
Confidence: 80%
Verified Aug 9, 2026
The brush head is worn and needs replacing.
How to fix Brush head worn
Replace the brush head
Replace the brush head with a genuine one.
Source: Apple Support — iPhone troubleshooting
Confidence: 80%
Verified Aug 9, 2026
Parts needed: Philips HX3681 Brush Head, Philips Sonicare 4100 Soft Brush Head
Reset the indicator
Reset the brush head replacement indicator.
Source: Apple Support — iPhone troubleshooting
Confidence: 80%
Verified Aug 9, 2026
Replacement parts for the Philips Sonicare 4100
Philips Sonicare 4100 Soft Brush Head
Philips Sonicare 4100 Charging Base
Philips HX3681 Brush Head
Philips HX3681 Replacement Battery
Philips HX3681 Travel Case
Philips HX3681 Charger
← All Philips Sonicare 4100 error codes
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