: Select Wipe > Advanced Wipe and check Data , System , Cache , and Dalvik .

: Stuck on Android 4.4 KitKat user interface aesthetics. 2. AOSP / CyanogenMod 11 Ports (Android 4.4.x) Pure Android skins stripped of all Huawei customizations.

Note: Huawei stopped providing bootloader unlock codes, so you may need to use third-party tools (e.g., DC-Unlocker) to unlock the bootloader on the T1-701u.

Connect your tablet to the PC while still in TWRP (TWRP supports MTP file transfer).