Most users don't know that the DS100E uses standard STM32 DFU protocols.
Use a (avoid using Bluetooth for updates). Disable Antivirus/Firewall temporarily. delphi+ds100e+firmware+update+problem+top
Performing a firmware update while the device is only powered by a laptop's USB port can lead to voltage drops. Connecting the DS100E to a vehicle's OBDII port (which provides 12V) during the update ensures the internal chips have enough "juice" to complete the write process. Most users don't know that the DS100E uses