*Onsite support is set by technician and reason for difficulty; may perhaps require customer entry to within process and many or extended periods. If issue is covered by warranty and not resolved remotely, technician or aspect will be dispatched, usually within one-two business days adhering to completion of distant diagnosis. https://dien-phuc-thinh.gitbook.io/dien-phuc-thinh/oc-siet-cap-chong-chay-no-gia-tot-tai-dien-phuc-thinh