The bootloader partition (uboot) is damaged.
If the steps above fail and you still encounter BootROM error: wait for "GET" , the SoC is trapped in a loop because it is detecting valid (but broken) boot data on the eMMC. To fix this, you must force the chip into by shorting specific pins.
: Most STBs use 3.3V TTL logic . If your UART adapter is set to 5V, it may cause errors or damage the chip. Conversely, if the signal is too weak, the processor won't "hear" the computer.
: The STB may not be in the correct mode to accept serial commands. This often requires holding a specific button (like "Boot" or "Reset") or bridging specific pins during power-on.
Low-quality PL2303, CH340, or CP2102 adapters frequently drop serial packets under high data loads. 2. Flashing Tool & Driver Mismatches The bootloader partition (uboot) is damaged
You must locate the eMMC chip on the motherboard and briefly short two specific pins (usually pins 29 and 30) with a metal needle while plugging the device into your PC. This forces the Bootrom to ignore the corrupted internal storage and "Receive" instructions from your computer. Conclusion
While holding the button, plug the power back in and keep holding for 15 seconds. If the recovery menu appears, select "Wipe Data/Factory Reset." 2. Check Your Connection (For Flashing)
This error message typically appears on Android-based set-top boxes (STBs) when the device fails its secure boot process. It indicates a low-level communication failure between the device’s internal "BootROM" and the external flashing or diagnostic tools. What the Error Means
: The flashing application (like Nationalchip Downloader, Amlogic Flash Tool, or Putty) is communicating at a different speed (e.g., 115200 bps) than what the BootROM is hardwired to receive. : Most STBs use 3
If you still see "Bootrom error wait for get," the device is not forcing BootROM mode. You must physically short two pins on the motherboard. This is scary, but necessary.
Which does it use (e.g., NationalChip GX, Amlogic, Hisilicon)?
Using tweezers, short the two points while plugging the USB cable from the box to the PC.
: Ensure a solid connection between the GND (Ground) pins of the adapter and the STB board. Communication often fails without a shared ground reference. : The STB may not be in the
If you're struggling to find the right firmware or the shorting points, please provide: The exact model number (on the bottom of the box). The CPU chip (Amlogic S905x, S912, Rockchip RK3328, etc.). The board version number (printed on the motherboard, e.g.,
Read the text printed directly onto the green circuit board (PCB). Look for the board model and revision number (e.g., Q5X V2.0 , S905X3_X4 ).
This points to the physical or logical connection. UART (Universal Asynchronous Receiver-Transmitter) is the serial protocol used to "talk" to the device's hardware directly.
The "bootrom error wait for get please check stb uart receive google verified" message is an explicit warning that your Android TV box's processor is waiting for a secure handshake that it isn't receiving. By stabilizing your physical USB connection, deploying the correct low-level drivers, ensuring strict firmware compatibility, and utilizing hardware test points if necessary, you can establish communication with the Boot ROM and successfully restore a bricked set-top box.