I had to exchange the left analog 3d stick as it was not working anymore. I opened the controller, carefully removed the battery and the RFID cables. I desoldered the analog stick and put the new one in and soldered it back in place. Now after I reassembled everything the controller is not turning on again. (light bar does not ract) - I check the battery and it is fully charged. When I put the cable in the controller and press the PS button, it turns on but as soon as I remove the cable, it turns right off again. I thought I did something wrong while soldering the new stick but everything looks fine. I also tried the reset button but without success :( Can anybody help?