Sony DPTA-RS1 Active Stylus Teardown & Battery Replacement

Written By: A. Lithia
  • Comments: 4
Sony DPTA-RS1 Active Stylus Teardown & Battery Replacement

Difficulty

Moderate

Steps

4

Time Required

1 hour

Introduction

Tearing down my DPTA-RS1 stylus and replacing the dead li-ion battery without damaging the cosmetics.

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    • The tip is glued-in-place. You need to wiggle it with force to loosen the glue.

    • Do not use clamps or pliers to hold the tip. You may risk damaging the capacitive coil underneath.

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    • The internals are now held in place by the plastic buttons. Remove them to proceed

    • Use a prying tool to remove the buttons. The middle pivot is a good entry point.

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    • With the buttons removed, you can now slide out the guts in the tip's direction. You can now perform a battery replacement.

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    • Apparently, the pen is built by Hanvon and is powered by ATMEL's (now Microchip's) maXStylus Technology.

    • ATMEL maXStylus mXTS220 Capacitive Stylus Driver

    • TI BQ24232RGTR Li-ion Battery Charger

Conclusion

To reassemble your device, follow these instructions in reverse order.

Author

A. Lithia

Member since: 23/03/23

149 Reputation

4 comments

Thank you mate. It has really been helpful, knowing how to open the pen. I cannot find the part number for battery on the post, and will really be helpful if you can post that as well.

Adi -

I have added an Aliexpress item to the guide. It doesn't have to be of the exact dimensions (generic lithium-ion batteries with similar or smaller sizes will fit and function correctly)

A. Lithia -

Thank you for your helpful post.

I would like to know how to loose the tips, they are hard to open.

Do I need to use a heat gun?

Also, I would like to know why you are replacing the battery.

Will replacing the battery also solve the problem of not being able to charge the stylus?

방성태 -

The pen tip is only plastic, so the heat gun will probably damage it. I repeatedly pushed the tip with my thumb (with force) using the gesture in Fig 1 from different angles to loosen the tip.

And yes, replacing the battery will resolve the charging issue.

A. Lithia -