Allupgrade Aml920 4g — 512m None Sos-

If the flash fails immediately with an error like [0x30201004] (DDR timing error) or [0x10303001] (Unsupport NAND), the "None Sos-" is permanent. The chip cannot talk to the RAM or storage.

Final verdict: Your box is recoverable, but only if you find the exact, correct low-RAM firmware and use the USB Burning Tool. If you see this error after buying the box, request a refund—it is defective by design. Allupgrade Aml920 4g 512m None Sos-

Have a different combination of numbers? Mention your exact error in the comments below.

In Amlogic development, “SOS” often appears in: If the flash fails immediately with an error

Thus, “None Sos-” could mean: the device has no SOS partition, making recovery harder. You will need to use the NAND shorting method every time.

No, avoid purchasing. Even at $10, it’s e‑waste. Modern Android TV boxes (e.g., Xiaomi Mi Box S, Onn 4K) start at $20–$30 with 2GB RAM, 8GB storage, and Android TV 10+. Have a different combination of numbers

If you already own it:

Based on the 512M RAM and 4G storage, here are the true capabilities:

| Feature | Reality | |---------|---------| | OS | Android 4.4.2, 5.1.1, or 6.0 (rare) | | Video decode | H.264 1080p@60fps, H.265 (only S905 and newer) | | Audio | Analog stereo via AV, HDMI 1.4 (no ARC/CEC often broken) | | WiFi | 802.11 b/g/n single‑band (Realtek 8188 or 8723) | | Ethernet | 10/100 Mbps | | USB | 2.0 (one or two ports) | | Boot | Android only (no mainline Linux easily due to blob drivers) |

“None” features confirmed: At 512 MB RAM, you cannot run modern Android TV or Kodi 19+. No Google Widevine L1, no HDR, no 4K output (even if UI claims 4K). App multitasking is impossible.