5️⃣ Verify version in Settings → About
4️⃣ LED flashes → stays solid → wait 2‑5 min → green LED = success xtreamer sidewinder 3 emergency firmware download
2️⃣ Format USB (FAT32, ≤8 GB) → copy .bin as update.bin → eject 5️⃣ Verify version in Settings → About 4️⃣
3️⃣ Power off → insert USB → hold Reset button → plug power → release xtreamer sidewinder 3 emergency firmware download