For opening an S1 trace from Core equipments, you have to use DASS tool, it looks like in the picture below and it is in chinese

Choose open , select ECNS_2U_TMF

Select the .tmf file

Choose ok

The trace file will be opened

You can double click any of the messages , i have chosen as an example ERAB setup request message

You will see the details

From group: eLTE Industry Wireless Network

