iFixit - Answers With Device "OralB iO"

OralB iO: The grey drive cylinder came out of the toothbrush — is it repairable?

Wed, 03 Sep 2025 07:13:55 -0700

The grey drive cylinder came out of the toothbrush — is it repairable?

⟐ Commented September 03, 2025 at 7:13 MST

OralB iO: Why it doesn't charge properly?

Fri, 11 Apr 2025 16:51:52 -0700

It seems to be charged. It syncs, and it shows on the app to be fully charged. Then it stops working and back to 0

⟐ Commented April 11, 2025 at 16:51 MST

OralB iO: Where can I source small repair parts? The neck gasket specifically

Wed, 21 Feb 2024 22:10:00 -0700

The seal below the metal ring on my io is split so water gets inside the body of the toothbrush. Can I buy a replacement for it? Or is there some other kind of repair I have to do instead involving silicone sealant or something?

⟐ Commented February 21, 2024 at 22:10 MST

OralB iO: display not working anymore

Tue, 10 Mar 2026 16:45:49 -0700

I have this issue...my toothbrush io 9 display has stoped working but everything else working fine....i open it an and found water inside...this could burn the display? can it be fixed?

⟐ Answered March 10, 2026 at 16:45 MST

OralB iO: No series number found on 3758 oral b io

Tue, 10 Feb 2026 00:45:59 -0700

Where is the series number on 3758? I don’t see one anywhere so I don’t know which replacement brush to get. A week spent trying to find a tooth

⟐ Answered February 10, 2026 at 0:45 MST

OralB iO: remove base of toothbrush

Fri, 29 Aug 2025 02:31:12 -0700

cannot turn base screw to replace cattery

⟐ Answered August 29, 2025 at 2:31 MST

OralB iO: Repair of the Io

Mon, 26 Feb 2024 15:17:49 -0700

Is it Possible to Replace the Glass of the Display?

⟐ Answered February 26, 2024 at 15:17 MST

OralB iO: Can't start after replacing battery

Mon, 27 Nov 2023 14:07:36 -0700

Hi, why my oral b io doesn't work after battery replacement? The guide is fool proof however, something goes wrong.

Thanks for your help

⟐ Answer accepted November 27, 2023 at 14:07 MST

OralB iO: Are the Series 7 and Series 8 as easy to disassemble as the series 9?

Sat, 09 Jul 2022 15:26:00 -0700

I like that the battery is replaceable in the Series 9 without having to desolder anything. Can the Series 7 and Series 8 similarly disassembled without the use of a soldering iron?

⟐ Answer edited July 09, 2022 at 15:26 MST

OralB iO: Internal cylinder broken and lost

Wed, 21 Jan 2026 09:31:12 -0700

The internal cylinder fell off and I lost it. Is it possible to replace it? Here is a comparison with a working one.

OralB iO: Charges Only After charger is unplugged and re-plugged

Thu, 03 Oct 2024 11:28:26 -0700

Why does the battery only charge after the charger is unplugged and then re-plugged in to the wall socket?

OralB iO: The On button working

Mon, 05 Aug 2024 11:23:37 -0700

My io is fully charged but not switching on via button

OralB iO: Looking for spare part OralB iO

Tue, 05 Dec 2023 02:05:55 -0700

excellent guide, but I have another problem, followed the instructions instead of the battery I discovered that the cylinder inside the copper windings was completely broken, how do I buy that piece?

⟐ Edited December 05, 2023 at 2:05 MST

OralB iO: My brush won't spin

Sun, 09 Jul 2023 15:14:33 -0700

My toothbrush all turns on. Makes sound like its vibrating. But will not vibrate the brush head itself

OralB iO: Drive shaft has split. Can I purchase part anywhere?

Mon, 17 Apr 2023 03:12:38 -0700

The grey shaft at the top of my toothbrush split. Can i buy this part anywhere? Is it repairable?

Thank you!

OralB iO: How to clean the grey drive cylinder the toothbrush snaps on to

Thu, 15 Sep 2022 11:36:08 -0700

Periodically, small bits of solid black debris come out of the drive mechanism that the toothbrush snaps onto. If you hold that end under running water and run the toothbrush, small tiny bits of black material will come out. I have found the best way to get the stuff to come out is it take a mouth full of water while the toothbrush is running and blow into the very end and the water will shoot out the two small holes at the base of the cylinder and lots of tiny black specs come out into the sink. I rinse the toothbrush drive mechanism every time I use it but still, over time every month or two there are more of the black flecks. Is there a better way of cleaning the gap between the silver center driveshaft and the surrounding gray collar? The gap is only a couple mm. You know it is clean if you hold the end straight vertically under running water while the toothbrush is running and water is pumped out the two side holes at the base of the drive mechanism.