美国采购需求：钥匙切割机、机器夹具、零件、钥匙切割解决方案、钥匙复制机、钥匙切割机

I've been experiencing communication issues with my tablet and the machine. I've already replaced the DB9 cable, but I'm still not getting any response. While the tablet seems to function normally, I can't get the key cutting app to launch. I've been searching for a software update on your website but can't seem to find it. I've also attempted to update the tablet online, but that process has failed as well. Any guidance on how to resolve these issues would be appreciated.