nokia, both wires will have to be rejoined to corresponding wire, normally wires would be stripped of a little insulation, shrink tubing put on/slid over wire out of way, stripped copper wire meshed or twisted together and soldered to secure connection. After solder cools feed the shrink tubing over the soldered joint and heat it with heat gun or carefully with small flame till it shrinks, rapping tightly around the joint. Electrical tape can be used in place of shrink wrap (just not as reliable I feel).
Check the attached Video link, instruction and guide on how to solder wires, Good luck
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https://www.youtube.com/watch?v=Q9G9gaokqvM