Hello Folks, just wondering if anyone on this forum has done a Roger Pen 1.1 teardown? My battery is goosed, so I am hoping some of you clever DIY’ers, have stripped the Roger Pen down, and replaced the battery… I have no idea how to open it, after a fair bit of searching, I can’t find anything online or on this forum, I am seeing a couple of tight looking seam’s in the upper half of the Pen, any ideas, suggestions, images or tutorials would be very much appreciated… Thank you in anticipation 
Cheers Kev 
Here is Roger Pen inside, with battery visible. But I can’t find disassembling process too. https://fccid.io/KWCTX17/Internal-Photos/Internal-Photos-2097999.pdf
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Thank you Dmitrii, for your link 
I am slightly further forward with your pdf, those batteries might be as rare as hen’s teeth though, some teardown images would help if anybody has any? Cheers Kev
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Could you upload some pictures from the Roger Pen ?
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Maybe you could pull the upper part from the lower part. Helpfull would be thick rubber gloves
If the two parts are glued together you may heat up the Pen with an hairdryer to 40°/ 50°
I never had a Roger Pen in my hands , so these are just guesses.
Does yours look like this ?
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The rubberised buttons come away, no problem, the silver pen holder, has 4 plastic prongs, but nothing underneath to unscrew, I am thinking, a jubilee clip tightened on the middle part, may compress it enough, to remove the top half? I will try again tomorrow, my finger is throbbing, I sent a tiny flat head screwdriver through my finger into the bone 
when it slipped off… ouch 
thank you for your suggestions Cheers Kev
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Ouch. The high cost of knowledge as a discoverer!
WH
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I’m sorry to hear about you accident.
Maybe you can see via a LED lamp how the seam’s looking from the inside
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They look as if they interlock, the seem is almost tooth shaped, looks like some specialist tool might be required? I’m thinking, the switch holes could be compressed, in order to release the top half, a jubilee clip might work? Cheers Kev
A long time ago, my friend borrowed my Roger Pen.
She sent it back to me and it arrived apart at that point. Luckily it stayed together when I pushed it back together and carried on working.
When I clipped it back together, it definitely felt like it wasn’t coming apart again.
Hope you manage to take it apart.
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Thank you Ruth, that is interesting information I am certain it will come apart, whether it’s fit to go back together in the process, is another question, we shall soon find out Cheers Kev
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Either rubberized button can be push into the hole with a flat screwdriver or it should place/push from inside (open cover). If the rubber is soft , then it can be push into the slot. Good job.
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I couldn’t get the Roger Pen 1.1 open, tried a jubilee clip, to compress the pen at the joint, to no avail, I will leave it just now until I can get some credible information on how to open the Pen… Cheers Kev
The only experts in this microelectronic will the mobile phone accessories electronic shop. In Asia there are a lot of mobile phone repairer with such expertise. They might be able to able to provide the answer. Not sure you have one in your area. In China, they are located in the electronic shopping malls.
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I am not willing to spend much on the Pen @dankailo, I can buy a replacement on eBay fairly cheaply, I probably won’t bother though, being older technology… It would have been nice to get it opened though, and hopefully replaced the battery… Finding a replacement battery that fits, might also have proved challenging? Thank you for your input Cheers Kev
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Yes, you are absolutely right. If it is cheaper to buy a replacement, then it would save all the troubles running up and down to the electronic shops.
All the best.
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