Unlocking the bootloader will wipe your device completely.
Select Reboot → System. First boot will take 5–10 minutes (Android optimizing). Do not interrupt.
| Problem | Solution |
| :--- | :--- |
| Bootloop after flashing | Re-enter TWRP, wipe Data and Cache. Re-flash the ROM. |
| Wi-Fi / Bluetooth not turning on | Your ROM does not match the vendor partition. Re-flash a GSI with -light or -vndklite suffix. |
| No mobile network / IMEI = 0 | Restore your stock NVRAM backup (you made one before unlocking, right?) using SP Flash Tool. |
| Camera app crashes | Use Open Camera from F-Droid; stock camera HAL is often finicky. |
| Battery drains fast | Install Franco Kernel Manager or SmartPack Kernel Manager and set governor to "powersave" or "conservative". | custom rom for huawei y5 2019 top
EMUI with Huawei Mobile Services (HMS) consumes up to 60% of the 2GB RAM. A lightweight custom ROM like LineageOS or crDroid reduces RAM usage to ~1GB at idle, leaving more for apps. Animations become fluid, and app launch times drop.
Some early versions had MediaTek MT6761 — those might support bootloader unlock and custom ROMs. Unlocking the bootloader will wipe your device completely
Reboot System.Unlike Xiaomi, OnePlus, or Google Pixel devices, Huawei ceased providing official bootloader unlock codes in May 2018.
Note: Some older Huawei devices (2015-2017) have exploits, but the Y5 2019’s TrustZone and bootchain are patched against these. | Problem | Solution | | :--- |
As of late 2024, here are the most stable and actively maintained ROMs for the TOP. Note: Because the Y5 2019 is a Project Treble supported device (supporting A-only partitions), you can flash either device-specific builds or Generic System Images (GSIs).
| ROM Name | Android Version | Stability | Best For | Download Source | | :--- | :--- | :--- | :--- | :--- | | LineageOS 20 (GSI) | Android 13 | High (Daily driver) | Clean AOSP experience, regular updates | XDA / GitHub (Treble) | | crDroid 9 (GSI) | Android 13 | Medium-High | Customization & performance tweaks | crDroid.net / GSI builds | | Pixel Experience (GSI) | Android 13 | Medium | Google Pixel-like interface & camera | SourceForge (Treble) | | Project Elixir | Android 14 | Beta | Latest Android version with monet theming | Telegram groups (TOP specific) | | /e/OS (GSI) | Android 12 | High | Privacy-focused, de-Googled | e.foundation |