1. https://event38.com/drone-data-management-system/.
2. Motochopper. http://hexamob.com/how-to-root/motochopper-method/.
3. Open portable trusted execution environment. https://www.op-tee.org/.
4. towelroot. https://towelroot.com/.
5. vroot. https://androidmtk.com/download-vroot.