RKUpgradeTest is for reading and writing device SN.
RKUpgradeTest 用于读取和写入设备 SN。
This tool is for learning and testing purposes only. Use at your own risk. The author is not responsible for any direct or indirect damage caused by using this tool.
本工具仅供学习和测试，请自行承担使用风险。作者不对因使用本工具造成的任何直接或间接损失负责。