Important warning:

1. When PC software has been upgraded to the new version(such as: from V1.72 to V1.80), 
user needs to upgrade the corresponding firmware to keep PC software and firmware compatible. 
When upgrade the firmware, user needs to upgrade old firmware to new version by old PC software 
firstly, then use new PC software send content to control card. 
If use the new PC software(such as V1.80) to send content to the old control card, the LED sign
will show the prompt information for updating firmware.  

2. For WZP Sign Software V1.80,if the sign not need gray user can upgrade firmware directly by Wzpsoft program 
If the sign needs gray, the upgrade for firmware is troublesome, user needs to return the control card 
to our company(if the sign has scan card, you need to return the scan card to our company too).  

