16 May LZTek K2 K3 K4 Update Firmwares By汤小贤// Comments are Off// Update Android firmware tutorialThis content is only visible to Android members or SVIP. If you have a membership, please log in! or Use the following methods to quickly login. If not, you can definitely get access! Purchase Android membership here.×Scan to Login in WeChat×Scan to share with WeChat