Chosen Solution
I replaced the display on my iphone 5c, following your guieds on youtube. All went well and without problems, was extra carefull doing it. I turend it on and there is a problem. Touch isnt working well, sometimes it does but most of the time, it is not responsive, sometimes it types letters itself, or more letters that I type. Opens different apps that I click on etc. All in all it is not funcitional at all! What could be wrong with it? The conectors are fine, I ever whiped them with pure alchohol when it wasnt worink ok for the first time. Tnx for your anwser!
Check your digitizer cable. Bending the flex cables can cause errors in the touch. You may have a faulty screen though.
Thanks for your help. It looks like it was a faulty screen after all!