The school released a new application, and the teacher instructed the students to install it on their cell phones. The activation process is by reading (scanning) the students' ID card with the camera on their cell phones. This sentence is the story of the main character who tried to activate the application.
Generally, I understand the meaning of each words, but I'm at lost on how to put it into a sentence in a proper order.
"...my face shot and student registration number and so on, when I photographed my student ID card with the camera according to the instructions."
But I'm confused with this part of the sentence: ...読み取られログインが進む。
読み取られ --> 読み取られる, I'm guessing that the る was excluded to insert a conjunction. I have seen several sentences with the same case, so I would like to ask if there is any rules/references related to it.
Thank you for your kind guidance.