FLASH_FILE=$REPO/loaders/telegps-v2.0-altos-flash-*.bin
ALTOS_FILE=$REPO/telegps-v2.0-*.elf
-$DFU_UTIL -a 0 -s 0x08000000:leave -D $FLASH_FILE
+$DFU_UTIL -v -v -R -a 0 -s 0x08000000:leave -D $FLASH_FILE
-sleep 2
+sleep 3
$USBLOAD --serial=$SERIAL $ALTOS_FILE || exit 1