How to Install Apk via TF card:
Step1:Insert the TF card in correct way(the logo side of the box is upwards;the copper contact of the SIM card is downwards)
Click here for detailed tutorials for your reference:
https://carlinkitcarplay.com/blogs/t-box-multi-language-tutorials-for-factory-wired-carplay/what-i-can-do-if-the-sim-card-cant-work-after-inserting-it-into-the-t-box
Step2:Open"ES File Explorer"
Step3:Click SD Card
Step4:Install the APK file as you need
Video Turorial:https://www.youtube.com/watch?v=uVpspb_jI2o