Hundreds of UI customization options, custom animations, and lock screen tweaks.
to replace its outdated ColorOS software. Because OPPO officially stopped releasing major updates for this 2019 phone, a custom ROM is the absolute best way to get a newer Android version, cleaner software, and smoother performance.
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Oppo A5s is a popular budget smartphone that runs on Android 8.1 (Oreo) out of the box. While it has received some software updates, users may want to try out custom ROMs to experience newer Android versions, improved performance, or additional features. In this guide, we'll walk you through the process of downloading and installing custom ROMs on Oppo A5s.
: This process wipes your phone clean. Save your photos and files. oppo a5s custom rom download work
In Developer Options, reducing or disabling window animation scale, transition animation scale, and animator duration scale can make the device feel significantly faster. Additionally, restricting background processes improves available RAM for foreground applications.
The following options are known to work well with the Helio P35 processor, offering a stable daily driver experience. 1. LineageOS (GSI Version)
Before attempting any installation, these prerequisites must be met:
Boot the phone directly into recovery mode (Hold ). Hundreds of UI customization options, custom animations, and
| Test | Stock ColorOS 11 | LineageOS 19.1 (Custom) | | :--- | :--- | :--- | | Idle drain (8 hours) | 12% | 5% | | 1 hour YouTube (WiFi) | 18% | 12% | | 30 min Gaming (Asphalt 9) | 25% (Heavy throttling) | 19% (Stable 30fps) | | RAM Free after Reboot | 1.2GB | 2.1GB |
Whether you have already or need instructions for that first.
LineageOS is incredibly lightweight and resource-efficient. It strips away all ColorOS bloatware, giving your phone a massive speed boost and freeing up valuable RAM.
Installing a custom ROM on the (CPH1909/CPH1920) can refresh its performance, but it requires specific tools because Oppo heavily restricts bootloader unlocking. 🛠️ Requirements Before You Start Backup everything: Flashing wipes all phone data. Unlocked Bootloader: Essential for any custom modification. TWRP Recovery: Needed to install the actual ROM file. Check the boxes for
Volume down + Power. The bright orange TWRP logo appeared. He made a full Nandroid backup (his lifeline) and wiped everything: Dalvik, System, Data, Cache. His phone was now a blank slate.
Unlocking will void your warranty. It also triggers a 5-second boot delay warning screen. This is normal.
I can provide the specific download links and tailored terminal commands for your setup. Share public link
Select . The first boot can take up to 10 minutes. Troubleshooting Common Issues
This happens if your device's NVRAM or EFS partition gets corrupted. Always keep a backup of your original stock ROM firmware so you can restore these critical radio partitions if needed.