left part of screen not responding touch

Hello,

Sorry for my english, I'm French.

I dismenteled my iPhone because the Home button wasn't working (it work now :)

But I think I messed with something, probably a cable, because now the extremity on the left of the screen doesn't respond when I touch it. (It's 3 millimeters on all the height)

So I can't press the a, q, shift, and the key for acceding the numbers on the keyboard when the phone is vertical.

Do you think there is a chance I can correct the probleme by opening the phone again and move the cables if they aren't well placed or it will just get worse?

Because after that I'm a little scared of opening it again :/ it was a very bad idea to open it in the first time, so I don't want to open it again for nothing.

And if there is nothing to do, do you know a solution for typing the caracter with my problem? maybe an app, or cydia app who can modify the original keyboard?

Thank you for reading me