throwaway4731

I’ll admit with not being up to speed here, my information is actually fairly old, but Qualcomm is famous for skirting its FRAND obligations and as far as I know “no license, no chips” is still de rigor. https://www.sunsteinlaw.com/publications/no-license-no-chips...

The hard part is not the modem design per se.

The hard part is designing a good modem while also unambiguously working around all the Qualcomm patents in all the jurisdictions that have iPhone, which is all of them.

Because if you don’t do that, you’re still paying Qualcomm which defeats an important purpose of making your own modem.