{
  "$type": "site.standard.document",
  "bskyPostRef": {
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    "uri": "at://did:plc:26wbisnofuprnxip3e62v5t2/app.bsky.feed.post/3mo53c42yvd42"
  },
  "path": "/t/support-to-more-new-sim-cards/2621#post_1",
  "publishedAt": "2026-06-09T21:22:32.000Z",
  "site": "https://discourse.osmocom.org",
  "tags": [
    "SIM Card: Reverse Engineering and ADM password bypass – Arthur Simas"
  ],
  "textContent": "Hi!\n\nWe have a private 5G network in our research laboratory and I started to dig in the SIM card technology.\n\nOur 5G network came with a batch of Smartjac SIM cards and we have a single unit of a Oyeitimes SIM card (from China/AliExpress).\n\nI would like to program these SIM cards using pySim, however I have noticed that it only supports a few SIM cards, mostly the sysmocom ones (which, by the way, are the only ones to be implemented using the newer CardModel class).\n\nMy questions are:\n\n  * What is the barrier for supporting new SIM cards?\n  * I have created two patches to bring support to the Smartjac and Oyeitimes SIM cards (based on the newer CardModel class). Is there interest from the community if i came to bring these patches to mainline/public? (My writeup to get some context in this saga SIM Card: Reverse Engineering and ADM password bypass – Arthur Simas)\n\n\n\nThank you!",
  "title": "Support to more/new SIM cards"
}