Using a Dual-SIM in my Treo 680

This time I want to give you some advise how to use a Dual-SIM adapter in your Treo 680:

After reading several successful stories about the analog-Dual-SIM adapter in Treo phone from www.2-phones-in-1.com I decided to buy one for my Treo 680.

The adapter consists of a connector in shape of a standard SIM-card which goes into the SIM slot. Then you have bigger part where you can insert your two SIM cards.

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The adapter is around 1.5 mm thick.

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All you need now are your SIM cards, your Treo 680 and this adapter.

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I use 2PlayMe to switch off my phone at night and switch it back on in the morning and also to switch it on after a reset. 2PlayMe has also the PIN code stored and enters it when switching on the phone. The adapter toggles between both card on every phone off/on. Therefore it was necessary to alter the PIN on one card to match the PIN of the other card. You can use the Treo to do it: go to the Phone-App, open the menu and select Phone Lock. Here you will have “Change PIN”.

To have the cable fit into the SIM slot, I had to modify it a bit. A sharp knife is sufficient and you might even remove more of the plastic to have it even better fit. It will still be enough plastic to hold a single SIM, as you have it still on the other site.

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The SIM-adapter fits now tight but firm into the slot and the remaining part can be put under the battery. You will see that the lid will also be a bit tight. But everything fits and for me it worked without a problem.

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I adjusted 2LaunchMe to have

a) a toggle phone option (without PIN entering at the moment)

and

b) display 2 different colors for given and a different provider. This allows me very fast to see which SIM is currently active and the toggle phone option (I mapped it to a longer “z”-press) makes the switch very easy and fast. Also does 2LaunchMe count the traffic using the real network preference name as reference to distinguish between the ppp0-connection from one or the other card.

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There is an article for using a Dual-SIM in a Palm Centro here.

Oktober 5, 2007 · admin · 12 Comments
Posted in: Allgemein, Palm

12 Responses

  1. maceyr - Oktober 6, 2007

    Thanks for sharing your experience. I have posted a reference to this very valuable post at Palm Addicts here. Hope you don’t mind.

  2. maceyr - Oktober 7, 2007

    One more question, which dual SIM Card adapter did you use? There are so many on the page. I would appreciate it if you can please provide this info. Thanks!

  3. admin - Oktober 7, 2007

    Some follow-up:

    Why do I need 2 SIM-cards in one phone?

    I have one SIM which I use for voice calls. It’s a phone number which i have since 3 years. The other SIM card is for a quite cheap data rate. I added a call forward for my standard number to the data number whenever the standard isn’t available. This means I will not miss a call even when I’m online with my other SIM.

    Which adapter did I use and what do one need to check?

    I used adapter Type 3. It’s the one which fits best the 680: in the SIM slot the cut corner needs to be in the upper left corner. All other adapters have the cut corner on the wrong side. For a 650 I’m not sure you will have much luck with such an adapter. There is no room for the SIM cards. They will be placed outside the phone.

    Regards
    Henk

  4. maceyr - Oktober 8, 2007

    Thanks very much for your reply. I forgot that the Treo 650 has the SIM card tray on the outside, unlike the Treo 680’s internal SIM card tray. I had forgotten that.

  5. 2-phones-in-1 blog » Blog Archive » Dual Sim adapter for Palm Treo 680 available - November 14, 2007

    […] http://metaviewsoft.de/wordpress/?p=47 […]

  6. Hosky - Januar 20, 2008

    Thank you for this tip. I have only one question. What about battery stand by time? I have read several articles that some SIM adapters drain battery extremely. Thank you for your reply.

  7. admin - Januar 20, 2008

    Well, the battery stand-by time isn’t the best on the Treo 680. But I haven’t recognized a drop with the dual-sim adapter. If you switch often it surely will cost some energy, just because the Treo is searching for a network more often.

  8. Hosky - Januar 20, 2008

    Thank you for your reply. And 2nd question. Is it really type 3 adapter (as mentioned above)? The only one in price 16,99 Euro? It looks quite different in the photo.

  9. admin - Januar 20, 2008

    Yes, it is the one: check it with your Treo 680. The sky-blue is the one which goes into the slide (it has the cut-corner on the correct side) the other part is for your both SIM cards. It fits below the battery but you will need to bend the cable a bit. It doen’t fit straight. But if you carefully look at the other, they doesn’t fit at all.

    Regards
    Henk

  10. Hosky - Januar 20, 2008

    Thank you. I have recognized the difference with cut corner in this moment. I made my order now.

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