*** Before Doing Anything***
Step 1: Download the latest backup available at Maintain --> Config Management --> History --> Configuration History
Step 2: Make sure you have the file downloaded
*** After reset / if there is any issue results in losing configurations ***
*** Require Console Connection ***
Step 1: Setup basic configurations as SRX Getting Started - Factory Reset
*** To manage the SRX device, you must connect a PC or laptop to the physical console or attach the PC or laptop to a subnet that is directly connected to the ge-0/0/0 interface, which is assigned an IP address of ‘192.168.2.1’. ***
Step 2: Connect back to Web-Management Console if possible.
Step 3: To Restore, go to Maintain --> Config Management --> History --> Configuration History --> Upload
Step 4: Upload the file and click “Upload and Commit”