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The iO, released in 2020 is an electric toothbrush by Oral-B. It is able to connect to your smartphone via Bluetooth and gives you realtime 3D teeth tracking. Model: Oral-B iO 9

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Can't start after replacing battery

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

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Hi @juanpulag,

Did you put the battery in the correct way? Maybe double check.

Did you charge the battery first after installing it, before attempting to turn on the toothbrush?

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What battery type did you replace with? Do you have a multimeter?

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@andrewsawesome Hi Andrew, thanks... I don't have a multimeter, so I can say that even the original battery doesn't start the brush.

What can I do with a multimeter? Thank for your answer....

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@juanpulag I was going to ask you to check the voltage of the battery with a multimeter.

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@jayeff hi, neither new and old battery works, the brush just shut down permanently... So sad, that's was something easy to solve "was"

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Sorry to be late to the party, but a german user just posted a comment with the same problem and the solution: He managed to reset the io via the app and it works flawlessly since then.

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Diego will be eternally grateful.
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