You found a link. Good. Now, consider the risks:
Furthermore, Huawei's aggressive stance on locking bootloaders made the situation even more difficult. For years, users on forums like XDA-Developers and 4PDA searched for ways to break free from the aging KitKat software. Development Reality huawei mediapad t1 70 custom rom link
Installing a custom ROM may void your tablet's warranty and may potentially brick your device. Proceed at your own risk. You found a link