Of course I know what you mean—you’re referring to how installing the intelligent driving hardware package upgrades both the infotainment system’s chip and the dedicated computing chip for intelligent driving. What I’m saying is that the infotainment system’s chip, along with the memory and storage space provided by BYD, is too small, which makes the system prone to becoming obsolete. As I mentioned earlier, even with the intelligent driving package installed, the infotainment system’s specs are only 8+64GB.DiLink and DiPilot are different things.
The core of DiLink-150 is BYD-9000 SoC which uses LPDDR5X DRAMs and 165k DMIPS computations & ~20TOPS of NPU.
In order to add Lidar, you will like need DiPilot-300, which comes with ADAS chips and allows supporting City NOA. Without it, you get DiPilot-100, which comes with Highway NOA and 100 TOPS computation.
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The autonomous driving system features 4 GB of RAM, 4 GB of virtual RAM, and 64 GB of storage. The infotainment system, on the other hand, has 8 GB of RAM and 64 GB of storage; this configuration simply doesn’t leave enough room for OTA updates.

Here’s a video showing the RAM and storage capacity of the Song Ultra EV’s infotainment system (Note: in Chinese):
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