Enjoy your updated Huawei MediaPad X1 7.0 with Lollipop!
The short answer is: . Huawei officially started a Lollipop upgrade program for the MediaPad X1 (specifically the 7D-503L and 7D-501u Chinese/Asia models) by pushing OTA updates to beta testers in late 2015. The beta ROM was Android 5.1.1 with EMUI 3.1, build numbers C208B011SP05/SP06.
For devices running EMUI 3.0 or newer, a simpler method exists without the dialer code: huawei mediapad x1 70 update lollipop install
Your Huawei MediaPad X1 7.0 is now successfully updated to Android Lollipop with EMUI 3.1, giving you a modernized, flatter UI design and compatibility with a wider range of legacy applications.
Go to (or System Update depending on your exact KitKat build). Enjoy your updated Huawei MediaPad X1 7
The device will detect the dload folder on the MicroSD card and automatically start the EMUI recovery upgrade process.
You can unroot your MediaPad X1 using the same Kingo Android ROOT software—the application includes an unroot function. The beta ROM was Android 5
A high-quality microSD card (at least 4GB) is required for the manual installation method. Step 1: Downloading the Correct Firmware
Search reputable Android archiving forums (such as XDA Developers) or official Huawei firmware mirrors for your exact model.