Sony ST15i digitizer problem

This video is about replacement of the digitizer of Sony ST15i, and shows that the replacement digitizer was faulty and not working.

[@voudio]

Finally, after making this video, the seller send me a working digitizer. I have replaced it and now it is working fine.

[@KonstantinosKalleris]

Did you find any solution about that? I have the same problem with the same phone and some days ago with a Lumia 620. Is it a fail of the replacement product or something else? I have tried 2 different digitizers at each phone and none of them worked.

[@garufallou]

the digitizer wasn't glued together with the TFT?

[@voudio]

No, digitiser and TFT are separate parts.