Confirm your device is explicitly labeled as the DV8555 (usually found on a sticker underneath the unit). Do not flash firmware meant for variations like the DV8545 or DV8919.
If you can tell me the or the specific model number (often found on the bottom of the device), I can help you find a more accurate firmware source. dv8555 firmware
Copy the firmware .zip update package to the root directory of a FAT32-formatted USB flash drive or SD card. Do not unzip the archive. Insert Media: Plug the storage device into the DV8555. Confirm your device is explicitly labeled as the
Under the hood, all these devices share the same core hardware: an Amlogic S905X2 processor, 2GB of RAM, and 8GB of storage, running Android TV OS version 9.0, 10.0, or higher. The SDMC DV8555 runs on a powerful ARM Amlogic quad-core processor clocked at 1.80 GHz to deliver robust performance for 4K streaming. Copy the firmware
screen /dev/ttyUSB0 9600 # Press 'u' within 2 seconds of reset sx dv8555_fw.bin </dev/ttyUSB0 >/dev/ttyUSB0