We have 7 days of testing time before the delivery, we will run the machine and test the function to make sure the machine is perfect.The machine has a module design, so we can know the problem according to the video and picture you sent to me.
I will create the After-sale group on WhatsApp, there have you, me, and our engineer, you can directly type your questions in the group, and the engineer will answer your questions.
If you connect to the internet, the machine can update any time when we push the new version.
If the software has a problem after you purchase it, don't worry, the machine's built-in remote control software, we will operate your machine with your consent to solve software problems.