Support to more/new SIM cards
Osmocom Discourse [Unofficial]
June 9, 2026
Hi!
We have a private 5G network in our research laboratory and I started to dig in the SIM card technology.
Our 5G network came with a batch of Smartjac SIM cards and we have a single unit of a Oyeitimes SIM card (from China/AliExpress).
I 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).
My questions are:
* What is the barrier for supporting new SIM cards?
* 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)
Thank you!
Discussion in the ATmosphere