jasonew , via OnePlus 7 Pro , Jan 21, 2020 : Hello everyone, I'm new to the whole OnePlus system and I'm trying to understand how Build Versions correlate to one another. Such as my OP7P lists the version as: 10.3.0GM21AA however OP website states the official version as 10.3.0GM57AA. what is the difference between GM21AA and GM57AA? Does the alphanumeric code refer to Device, storage size, equipped RAM? For comparison at least from what I can remember if you had say 5 different iPhones all updated to the latest version they would all display the exact same build of that iOS version. Please keep this thread to the point and refrain from responding if it's just your opinion or "if you're wondering the same thing", or telling me what your build version is. I'm not concerned and am looking for someone who actually knows what they are talking about. The facts.