There are several connections to remove

Top digitizer connector

Sub board/Daugtherboard connections

Screen connection

Bottom digitizer connector

Antennas

Be aware that the Daughterboard connectors are adhered to the EMI Shield, in this case you can use tweezers to remove the shield along with the connectors. Please be careful using tweezers for this method

It is always recommended to disconnect the battery first before you disconnect any connections to avoid short circuit or other accidents occurring