i broke my charger!!

[Skinny C]

yesterday i went to go charge my speed and it was acting kinda funny. it would charge for a min and then it wouldnt, so i wiggeled the cord then it would. it went on like this for a few mins back and forth. then it just stoped charging. i pulled the cord ever so gently and it came out of the plug where u plug it into the board side not the sigg side of the charger it self. i have a game this weekend, i need to know what wire is the + and what is the - ? so i can put them back on the charger head? the wire colors are blue and red? thanks guys

[HaMmY210]

hello im a apprentice electritian ther eis a red and a blue the red goes onto the connection that leads to the center and the blue on the outside, red is positive,blue negative i had this problem but just soldered it up and it works like a treat