After the PCBA has undergone a series of PCBA tests, the PCBA board without problems can be labeled with qualified labels, and finally can be packaged and shipped. HYCXPCBA offers function test service with our turnkey electronics manufacturing services for PCB assembly, these services include Functional Circuit Test (FCT) and In Circuit Test (ICT) use pcba tools after PCB assemble... https://www.hycxpcba.com/board-prototype/function-test.html