if you need to have the full MBPL SDK source code, you need to contact Sierra FAE.
BTW, can you use the prebuilt fw-download-toolarm64?
Lastly, you can have a look in this thread, other user using aarch64 was using fwdwl-literpi:
if you need to have the full MBPL SDK source code, you need to contact Sierra FAE.
BTW, can you use the prebuilt fw-download-toolarm64?
Lastly, you can have a look in this thread, other user using aarch64 was using fwdwl-literpi: