Hi,
I have a question for my Panasonic phone display. I hope someone with experience on phone display replacement can give me some hinds or advice on the situation.

So I decided to replace my old display with a new one for my old Panasonic KXTG2431 phone. I carefully peeled the plastic ribbon (from the display unit)off from the conductive adhesive and put the new one in position.I then used a warm soldering iron carefully pressing the contacting position on which the plastic ribbon met with the conductive adhesive, just like it was before I peeled it off.I put everything back together and re-installed the battery and guess what? No display at all! No characters,just a blank screen. Thinking the new unit may not be compatible so I put the old back in. Same thing,a blank screen. So what happened? What have I done wrong? I hope everyone can chime in and give me some advice.Thanks for your help.