All, or at least nearly all, digital camera sensors are sensitive in the IR. That's why most "normal" digital cameras have IR blocking filters. Security and astrophoto cameras have the filter removed. For astro there's also people who remove the filter manually[1].
That link is kind of a fever dream of information a little ways in. Are you sure you meant to post that?
"First, remove the smartphone camera’s infrared filter as a whiteboard is on the floor. The beginning of the CCD chip is the scar we need to eliminate. Enter the IRF address, and use a hot air gun to remove it and your piece."?
Thanks for the catch. Was on the phone and in a hurry so didn't read the whole thing carefully, just several sections which looked ok.
Several passages that do not make much sense, looks like weird translation errors or something. Sorry about that.
Here's a proper guide[1] also with some sample post-conversion pictures. Though the specifics do vary from model to model so if you want to try make sure you find a suitable one, LifePixel has a collection[2] of model-specific tutorials for example.
"First, remove the smartphone camera’s infrared filter as a whiteboard is on the floor. The beginning of the CCD chip is the scar we need to eliminate. Enter the IRF address, and use a hot air gun to remove it and your piece."?