If you are looking for a specific file (e.g., to unbrick a device or attempt to remove ISP restrictions), you will need to find the files through unofficial channels.

Step 1: Identify your Hardware Version Before downloading anything, look at the sticker on the bottom of the device. You need to match the Hardware Version (e.g., V1.0, V2.0). Installing a V1.0 firmware on a V2.0 device will brick it.

Step 2: Where to find files Since there is no official link, you must search community forums. The most reliable sources for ZTE STB firmware are:

  • XDA Developers Forums: Check the "Android TV" or "Set-Top Box" sections.
  • DSLReports: Search for your specific ISP model in their forums.

    • Step 3: Downloading When you find a file, verify it is a .zip or .img file specifically for the B760HS3. Be careful of fake download sites that force you to fill out surveys—these are scams and do not contain the actual file.

    Requirements: Windows PC, USB A-to-A cable, USB Burning Tool v2.2.0 or newer.

    If you have a second identical box, dump the firmware:

    dd if=/dev/block/mmcblk0 of=/sdcard/full_dump.bin bs=1M

    To download the correct new firmware, you need three pieces of information:

    Serial Number Decoder (Example):

    adb connect <IP_of_box>:5555
adb reboot recovery
# In recovery: apply update from ADB
adb sideload update.zip

    If you have acquired a valid update file, the standard flashing method for this model is as follows:

  • Enter Recovery Mode:

    • ⚠️ CRITICAL WARNING BEFORE YOU START
    This device is typically locked to a specific ISP (e.g., China Telecom, China Unicom, TELUS, or other regional carriers). Flashing the wrong firmware will permanently brick the device (no recovery mode). Do not use firmware from random forums without verifying the board revision.

    The ZXV10 B760HS3 has multiple internal variants. Open the device or check the bottom sticker for:

    How to check without opening (if bootable):

    There is no public official download center for the B760HS3. ZTE only provides files to operators under NDA.