Colon is not blinking on Tanix W2

[ace-fridge]

Hi, There is a problem with the colon on the clock not blinking on Tanix W2.

[ace-fridge]

solved:
count=4
while [ $count -gt 0 ]
do
echo 7 > $dev_path/brightness
echo "$(date +"%H%M")" > $dev_path/digits
sleep 0.5
echo 6 > $dev_path/brightness
echo "$(date +"%H%M")" > $dev_path/digits
sleep 0.5
count=$(( $count - 1 ))
done