Lukas Arnold
@lukasarnld.bsky.social
Researching iOS' Cellular Protocol Stack @ SEEMOO
Studying CS @tuda.bsky.social
🌍 https://lukasarnold.de
Studying CS @tuda.bsky.social
🌍 https://lukasarnold.de
I just published the slides of my #OBTS v8.0 talk about Apple's #C1 baseband. Our C1 #binja loader is now available on GitHub, and you can find a recording on YouTube.
lukasarnold.de/posts/obtsv8...
lukasarnold.de/posts/obtsv8...
OBTS v8.0: Diving into C1
Learn more about my talk “What’s at the Bottom of the Sea, One Baseband? - Diving into the C1” at eight edition of the Objective by the Sea conference.
lukasarnold.de
October 27, 2025 at 3:48 PM
I just published the slides of my #OBTS v8.0 talk about Apple's #C1 baseband. Our C1 #binja loader is now available on GitHub, and you can find a recording on YouTube.
lukasarnold.de/posts/obtsv8...
lukasarnold.de/posts/obtsv8...
I‘m glad to be back at #OBTS v8.0 with a talk about Apple‘s #C1 baseband and carrier profiles
objectivebythesea.org/v8/talks.htm...
objectivebythesea.org/v8/talks.htm...
#OBTS v8.0: Talks
Conference Talks
objectivebythesea.org
July 24, 2025 at 6:42 PM
I‘m glad to be back at #OBTS v8.0 with a talk about Apple‘s #C1 baseband and carrier profiles
objectivebythesea.org/v8/talks.htm...
objectivebythesea.org/v8/talks.htm...
We've released CellGuard 1.6.0, our iOS app, to make use of the iPhone's internal baseband communication. The update enhances support for dual SIM, adds new #C1 packet types, automatic navigation to sysdiagnoses, and more: cellguard.seemoo.de/docs/changel...
Changelog
Changelog # 1.6.0 # CellGuard now supports dual SIM setups. When two SIM cards are activated simultaneously, the app can distinguish between their connected cells and packets. We’re working on extract...
cellguard.seemoo.de
June 14, 2025 at 6:40 PM
We've released CellGuard 1.6.0, our iOS app, to make use of the iPhone's internal baseband communication. The update enhances support for dual SIM, adds new #C1 packet types, automatic navigation to sysdiagnoses, and more: cellguard.seemoo.de/docs/changel...
Reposted by Lukas Arnold
It's great seeing students I've had the privilege to supervise deliver amazing talks at #OBTS - and for Lina it's even her first conference talk! Check out their recordings on YouTube: youtube.com/@objectiveseefoundation
December 6, 2024 at 10:35 AM
It's great seeing students I've had the privilege to supervise deliver amazing talks at #OBTS - and for Lina it's even her first conference talk! Check out their recordings on YouTube: youtube.com/@objectiveseefoundation
Thanks for joining my talk about iPhone basebands at #OBTS #OBTSv7. It’s an awesome experience in Maui, and I’m looking forward to the rest of the conference. You can find the slides at lukasarnold.de/pdfs/obts7-t...
December 6, 2024 at 1:45 AM
Thanks for joining my talk about iPhone basebands at #OBTS #OBTSv7. It’s an awesome experience in Maui, and I’m looking forward to the rest of the conference. You can find the slides at lukasarnold.de/pdfs/obts7-t...