I had a slimier issue, in my laptop bag there was few pieces of silicon ball and I didn't notice. Then one night when i found out this situation. I have opened the back panel of the laptop but it didn't work. You wont be able to melt silicon with needle, then when I was almost fedup i figured out that its easily breakable as its just end of the day silicon right. So i just take one sharp object and break it down inside the jack. Then pressing hard with the headphone jack does the rest. Hope it works for you.... thank god it worked for me.