As we received plenty of repeated questions from you, we decided to create this thread to post answers here. This thread will keep updating to help you solve your problems.
Here are the questions and answers:
Q1. How to record the videos with 2560x1440 video resolution?
Video storage choice can influence your video resolution. There are two options you can choose for video storage: high compression ratio and low compression ratio. If you choose low compression ratio in video storage, there is only 1920x1080 resolution shown in the video resolution list.
Thus, if you want to enjoy 2560x1440 resolution, please remember to choose high compression ratio in video storage.