Option A — Vendor GUI Tool:
Option B — Command-line flasher:
Option C — Bootable USB Image:
Please provide:
With that information, I can write a safe, accurate, step‑by‑step firmware installation guide — including:
Download the official tpdnt72563pb781_firmware.sha256 from the manufacturer’s portal and run:
sha256sum -c tpdnt72563pb781_firmware.sha256
Step 1: Connect the Hardware
Step 2: Enter Boot Mode
Step 3: Install Drivers
On Windows, open Device Manager; ensure COMx appears under “Ports (COM & LPT)”.
Step 4: Launch the Flasher
TPDNT_Flash_Tool_v1.5.exe --port COM5 --baud 115200 --write tpdnt72563pb781_v2.3.bin
Step 5: Monitor Progress
Step 6: Exit Boot Mode
If the device is still functional:
# Example using stm32flash on Linux
stm32flash -r backup_tpdnt_original.bin /dev/ttyUSB0