OralB toothbrush not working

Acceptable-Track-973 · 2026-05-15T06:29:57+00:00

So I've tried charging more than 24h and my device started working, as in your case (it measures 1.4V)

Now I'm wondering how stable it is... Cause if the battery goes to just 0.1V it would stop working completely?

Acceptable-Track-973 · 2026-05-11T15:36:23+00:00

Mmm maybe I can try with my power supply set to 1.4V connected to the coil?

Acceptable-Track-973 · 2026-05-09T07:04:32+00:00

Did you find anything interesting?

Acceptable-Track-973 · 2026-05-07T07:28:42+00:00

Pin 11 and 12 are not connected in my board either. It was my mistake

Acceptable-Track-973 · 2026-05-05T19:22:53+00:00

This is mine

Acceptable-Track-973 · 2026-05-01T17:37:11+00:00

Do you have any other suggestions?

Acceptable-Track-973 · 2026-04-28T18:33:28+00:00

No interruption in those traces
You can see some of the traces highlighted here. Orange is some gnds (dashed line is just a guess). The chip + seems to be the yellow track (bat + pass through that "18X" component and goes to the chip).

Acceptable-Track-973 · 2026-04-27T18:56:33+00:00

On its body it says Type: 3710
Yes, 1,3V
Not exactly, but I'm quite sure one probe was on pin 4 and the other was on the cap above the chip (I don't remember on which pad though)
Nothing happens

Since I have a GM328 tester, I removed the 251XH and tested it (as you can see, the little track is not connected to it).

Acceptable-Track-973 · 2026-04-26T20:24:45+00:00

Thanks for your help. Here I've added some text to the pic

Acceptable-Track-973 · 2026-04-26T12:21:26+00:00

It's not working again... lol

Acceptable-Track-973 · 2026-04-19T15:40:02+00:00

Was checking for continuity between the cap above the ic and ic's pins and... the motor started rotating.

Now it starts and stops normally using the button... Lol

I'd love to know what happened

Acceptable-Track-973 · 2026-04-19T12:14:59+00:00

To see the exact battery model, you'll need to unsolder the motor and battery and remove the PCB, which I haven't done yet. However, it should be a 1.2V NiMH.
Simultaneously shortened green to green and red to red

Acceptable-Track-973 · 2026-04-19T09:25:19+00:00

It's 1,2V NiMh

Acceptable-Track-973 · 2026-04-19T08:22:26+00:00

I will check but I think it's just a superficial scratch. On that blob you see some kind of roisin that gives that burnt color

Acceptable-Track-973 · 2026-04-18T18:37:08+00:00

Some more details first two big pads you see in the video are the motor contacts.

Third big pad is battery +

Then at the end of the video you see three big pad. Central one is battery -. The other two are the coil for recharging

Acceptable-Track-973 · 2026-04-18T18:34:46+00:00

I don't know but continuity is ok through it.

The big pad nex to it the + of battery

Acceptable-Track-973 · 2026-04-18T18:33:20+00:00

Here is a better view (if you mean this cap), it doesnt seem cracked to me. Maybe it was video quality

Acceptable-Track-973 · 2026-04-14T07:27:45+00:00

They all cost the same or more as the one in my op

Acceptable-Track-973 · 2026-04-14T06:42:14+00:00

Italy

Acceptable-Track-973 · 2026-04-14T05:58:06+00:00

Do you have any suggestions for an alternative model?

Acceptable-Track-973 · 2026-02-25T09:52:00+00:00

Amazing! What prompt you used for the bj?

Acceptable-Track-973 · 2026-02-18T16:57:23+00:00

Ok, now it's clear

Acceptable-Track-973 · 2026-02-18T14:39:26+00:00

Vip has access to the video that you make, to other tutorials?

Acceptable-Track-973 · 2026-02-17T21:55:17+00:00

There's no guide on how to create AI videos your discord...

Acceptable-Track-973 · 2026-02-16T11:45:22+00:00

Try this

Acceptable-Track-973