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82 lines
3.3 KiB
Markdown
82 lines
3.3 KiB
Markdown
# Get started with Satochip
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What you need to access the wallet stored on the card:
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* the smartcard loaded with the Satochip java applet and initialized (this was likely done by the one handing the card to you)
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+ a smartcard reader (here an ACS ACR39U-N1 PocketMate II USB)
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* a computer with a USB port capable to run:
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- [TailsOS](https://tails.net/) (can be used offline, but to see new transactions and the balance needs an internet connection)
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- Debian 12
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- Windows 10
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- other operating systems will likely work, just not tested
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## Connect the Satochip Card
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* open the Smartcard Reader by turning
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<img src="./card-and-reader01.png" height="200">
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<img src="./card-and-reader02.png" height="200">
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* plug in the Card to the Reader with the chip facing up
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* connect the Reader to a USB port
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* the Reader will start flashing
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<img src="./card-and-reader03.png" height="200">
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<img src="./card-and-reader04.png" height="200">
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* remove other smartcards (like a Yubikey) temporarily
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## Download and run Sparrow Wallet
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* find the files for your operating system at [sparrowwallet.com/download](https://sparrowwallet.com/download/)
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* follow the steps to verify the downloaded binary. Can use Sparrow Wallet itself to do the verification once installed.
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* if you don't have your own server use one public server which you know, eg.: `electrum.diynodes.com`
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## Import the Satochip wallet to Sparrow Wallet
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* select `New Wallet`
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<img src="load-satochip-to-sparrow01.png" height="600">
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* type a name and `Create Wallet`
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<img src="load-satochip-to-sparrow02.png" height="600">
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* select `Airgapped Hardware Wallet`
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<img src="load-satochip-to-sparrow03.png" height="600">
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* click `Import` next to `Satochip`
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<img src="load-satochip-to-sparrow04.png" height="600">
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* enter the PIN code then click `Import` again
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<img src="load-satochip-to-sparrow05.png" height="600">
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* can see the details for the default derivation path. Save with `Apply`.
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<img src="load-satochip-to-sparrow06.png" height="600">
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* it is optional to set a password to protect the read-only wallet on saved on the desktop.
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* select the `Transaction` tab on the left to see the balance and transaction history of the wallet on the card.
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+ make sure to wait for `Finished loading`
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<img src="load-satochip-to-sparrow07.png" height="600">
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* in case transactions are missing despite a connected server can try increase the `Gap limit` in `Settings` -> `Advanced`
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* refer to the Sparrow Wallet documentation to transact using your Satochip: https://sparrowwallet.com/docs/coldcard-wallet.html#sending-bitcoin
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## Reference:
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* find the original Satochip cards at: [satochip.io/product/satochip](https://satochip.io/product/satochip/)
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* for the DIY version see this [gist](https://gist.github.com/openoms/510b2876cab19e15c4190456ea8aad82#file-satochip-javacard-applet-install)
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* the Smartcard Reader pictured: ACS ACR39U-N1 PocketMate II USB Smart Card Reader
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* [amazon.co.uk/dp/B0758TS5JR](https://www.amazon.co.uk/dp/B0758TS5JR/)
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* [aliexpress.com/item/1005002034557322.html](https://www.aliexpress.com/item/1005002034557322.html)
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* the Card pictured: JCOP Chip Card Dual Interface Chip Magnetic Stripe Java Card J3H145 (no NFC)
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* [alibaba.com/product-detail/JCOP-Dual-Interface-Support-RSA4096-ECC_1600070838098.html](https://www.alibaba.com/product-detail/JCOP-Dual-Interface-Support-RSA4096-ECC_1600070838098.html)
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