Oh hmmm okay thanks, I didn't know that. I've read that BYD requires it's own SIM card when communicating with things like their app and software updates. For example, my BYD app does not work when my car is connecting to any Wi-Fi, as soon as I disconnect Wi-Fi the app works fine. I only have the car for 4 weeks now so I haven't been able to test OTA yet, but I assumed that would be the same because BYD only allows communication to their systems over their own network.
Have you already tried turning it off and download the update over their SIM card? If so, I would suggest a reboot like another commenter did, it should not affect the download/brick the car.

Came across the latest technical details on Owner Discussion: BYD e-Platform 3.0 Evo Announced: 12-in-1 Powertrain, 23,000 RPM Motor & 230 kW Fast Charging — Thoughts & Specs Breakdown and thought I'd start a thread so we can compare notes and see what fellow owners think:

1. Key Highlights & What Stood Out to Me

BYD has unveiled the e-Platform 3.0 Evo, debuting first on the BYD Sealion 7 EV!

Major Hardware Upgrades Over Standard e-Platform 3.0:

1. 12-in-1 Integrated Electric Drive Unit with silicon-carbide (SiC) power electronics.
2. 23,000 RPM High-Speed Traction Motor pushing top speed to 215 km/h.
3. Intelligent Pulse Self-Heating & Dual-Gun / 230 kW CCS2 Charging: Drops 10–80% DC fast charge times to 24 minutes, and 80–100% top-up to just 18 minutes!

2. Closer Look at the Specs & Hardware Packaging

Technical Parameter	Official BYD Specification & Benchmark
Platform Architecture	e-Platform 3.0 Evo with CTB (Cell-to-Body) Integration
Drivetrain & Peak RPM	23,000 RPM Traction Motor (Up to 390 kW / 690 Nm AWD)
DC Fast Charging Peak	Up to 230 kW CCS2 (10% to 80% SOC in ~24 Minutes)
Chassis & Safety	DiSus-C Adaptive Damping + 5-Star ANCAP/Euro NCAP (93% Child)

3. What Do Fellow BYD Owners Think?

How do you see this fitting into your garage or next EV upgrade over the next 12–24 months? Keen to hear real-world thoughts from Atto 3, Seal, Dolphin, Sealion, and Shark 6 owners!