Power issues and a popped charger board

MNT Pocket Reform
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Though I didn’t realize it until later, my Pocket was not shutting down properly (similar to the issues in this thread) after a fresh install.

A few days ago, upon reaching ~30% battery, the battery voltages dropped to around 3.0 and the device shut off, then turned itself back on repeatedly. (Similar but different behavior to this thread]

This was fixed temporarily by charging the device to full.

My suspicion was that there was an issue with a battery as the voltage should not be fluctuating this much. I ordered some replacements.

However, upon plugging the device in today, I heard a pop and smelled some magic smoke.

Sure enough, the MPSN08 chip on the charging board has blown.

PXL_20250702_184638090~2
PXL_20250702_184638090~2944×940 250 KB

The charger I’ve been using is rated at 65W and I’ve not been able to find any limitations as far as input goes.

I’m travelling but when I return home I will try the jumping tutorial laid out here, but until then I would love any advice or suggestions.

I haven’t been able to find the right vendor for the charging board. If anyone has a recommendation, please let me know.

2

You don’t. You either write to support@mntre.com directly or you click through the step-by-step instructions (with photos) here to get to a form which allows you to do so in a structured way: https://support.mnt.re/

If your charging board breaks you will get a replacement shipped to you because you are still under warranty. You don’t buy a new one. :slight_smile:

Since your charging board is very obviously broken, the temporary workaround is to bridge pins 2 and 3. As far as I know, there is no other workaround until you get a replacement charging board.

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Thanks a million, I’ll do both of these things :smiling_face:

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FYI @josch support@mntre.com is currently offline/will bounce. https://support.mnt.re is the way.

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