To ensure the security of your information, I'd suggest that you delete the post containing any Dell centric information (Service Tag / Express Service Code).
My name is Do Thanh Long. I come from Vietnam. I just bought a Dell monitor S2417DG in a few days ago. My problem is I also can not check the warranty information because Dell service tag is not found? Can anyone help me? The information on behind the S2417DG is :Retail Store:  a Small, No- Brand Shop at Viet NamMy Email Address: My Name: Do Thanh LongPhone Number: Monitor Model: S2417DG Service Tag : Express SVC Code : **********(because 0 number and O character is very similar, i'm not sure about this, so i send you the two possibility of S/N) S/N1: CN-03J54J-QDC00-87D-OHOU-A05   or  S/N2: CN-03J54J-QDC00-87D-0H0U-A05  please give the response as soon as possible.  thank you so much!
S2417DG, service tag not found?