You can buy a JST connector crimping kit on something like amazon for less than $30. Can reinstall the broken wire and the others on the new connector; no soldering required.
Discussion
85 second fix if you have all the tools in front of you
You can buy a JST connector crimping kit on something like amazon for less than $30. Can reinstall the broken wire and the others on the new connector; no soldering required.
85 second fix if you have all the tools in front of you