Electronics > Repair

Sonicare tootbrush teardown and repair

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reagle:
Only 7 years later, but here is the newest failed Sonicare!
They did upgrade quite a bit of stuff I must say. Seems hackable, but I am a bit rusty on ideas..
https://kuzyatech.com/philips-sonicare-hx681a

thm_w:
Interesting that they switched to cypress.
The NFC reading is a bit crazy. The field sensor makes sense at least, although I don't know why it cares if you picked up the brush or not. Hall effect I suppose.

richnormand:
Did a similar job on my Oral B unit a few years back. Similar issue with corrosion and a weak battery (NiMH).

Of note was a plastic nib on under the bottom of the charging base molding. It was designed to fit and remove the toothbrush base cover without damaging it.
Have a close look at yours before using a screwdriver and damaging the bottom cover.

m3vuv:
Simple get dentures!! lol :-DD

artvandalai:
Anyone able to help me diagnose a Sonicare Prestige? I bought 3 broken ones with the intention to repair them but ive been unable to. Whats wrong with them is they wont charge and i tried with different chargers. I took them apart and theres no damage or rust anywhere. The battery reads as still good still.

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