You will lose Widevine L1. This means Netflix and Amazon Prime will stream at 480p (SD), not HD. For many, this is a dealbreaker. If you watch movies constantly, stay on stock. If you use the tablet for reading, browsing, or gaming, unlock, flash, and enjoy your new device.
, the developer community continues to maintain unofficial builds: HUAWEI Global LineageOS 22.2 (Android 15): huawei mediapad m5 lite custom rom new
As of this writing, here is the latest status of custom development for the . You will lose Widevine L1
You cannot flash a custom ROM without an unlocked bootloader. Because Huawei stopped providing official bootloader unlock codes in 2018, you must use third-party paid software tools (like PotatoNV, DC-Unlocker, or HCU Client) to bypass this restriction. If you watch movies constantly, stay on stock
If you want granular UI control, look for older Android 10/11 Havoc or Resurrection Remix builds. These allow you to customize status bars, gestures, animations, and hardware button mappings to your liking. Crucial Prerequisites Before Flashing
What is your (found in Settings > About Tablet)? Do you already have an unlocked bootloader ?
Because Huawei uses proprietary and enforces strict bootloader policies, traditional device-specific development is rare. Instead, developers successfully target this tablet using Project Treble Generic System Images (GSIs) and custom builds.