Oppo A37fw Custom Rom May 2026
Best for: Gaming performance
A lesser-known gem, Project Sasang tweaks the GPU and CPU governors to prioritize frame rates. If you play light games like Clash Royale or Stardew Valley, this ROM reduces stutter significantly.
⚠️ Note: Android 12/13 ROMs exist, but they often have broken cameras or RIL (radio interface layer) issues. For a stable daily driver, stick to Android 10 or 11 ROMs listed above.
The Oppo A37fw (codenamed f1f) was launched in 2016 running Android 5.1 Lollipop with Oppo’s ColorOS 3.0 on top. While it was a solid budget device for its time, official software support ended years ago.
If you still have this device lying around, you’ve likely noticed severe lag, app incompatibility, and security vulnerabilities. The solution? Custom ROMs.
Flashing a custom ROM replaces the outdated, bloated ColorOS with a clean, modern version of Android, dramatically improving performance, features, and security. Oppo A37fw Custom Rom
⚠️ Critical Warning: Rooting, unlocking the bootloader, and flashing custom ROMs voids your warranty (if any remains), carries the risk of bricking your device, and can compromise security if not done carefully. Proceed at your own risk. This guide is for educational purposes only.
The A37fw shares its chipset with several other Oppo and Realme phones, so the ROM scene was surprisingly active. Here are the most stable and popular options:
The journey to a Custom ROM began with a battle that many lost. In the world of Android, the "bootloader" is the gatekeeper. Most manufacturers leave it unlocked, or provide a key to unlock it. Oppo, however, did not.
The A37fw had a locked bootloader with no official method to unlock it. This was the "Siege." For months, forums like XDA Developers and local tech groups in India and Indonesia were filled with cries for help. If you tried to flash a custom recovery (like TWRP), the phone would simply refuse, displaying a stark warning that the system had been tampered with.
Then came the turning point: The Privacy Lock Exploit. Best for: Gaming performance A lesser-known gem, Project
Modders discovered that by downgrading the firmware to an older version of ColorOS (often version 5.2.1 or lower), they could exploit a vulnerability in the system. It required a terrifying process involving the dreaded "Qualcomm HS-USB QDLoader 9008" mode—a state where the phone looked like a brick, black-screened and lifeless.
Using tools like "Oppo MSM Download Tool," users had to bridge a resistor on the motherboard (the infamous "test point" method) or use a specialized cable to force the phone to listen. It was hardware hacking at its most desperate. Many phones died in this phase, fried by static electricity or bad connections. But those that survived were free.
Standard fastboot oem unlock does not work on Oppo A37fw.
You need unofficial methods:
If you cannot unlock the bootloader, stop here. No custom ROM is possible.
Once the bootloader was finally tricked into unlocking, the doors flew open. The most popular destination for the A37fw was LineageOS (formerly CyanogenMod). ⚠️ Note: Android 12/13 ROMs exist, but they
The transition was jarring. Users wiped away the bloated ColorOS and installed the pure, clean lines of stock Android (AOSP).
Suddenly, the "Selfie Expert" transformed. The Snapdragon 410, previously wheezing under the weight of Oppo’s skins, was now sprinting. The UI was fluid. The battery life, previously a struggle, now lasted days. Features that Oppo had disabled—like the true "Doze" mode for battery saving or native call recording—suddenly worked.
But the most beloved ROMs for the A37fw were the ones that pushed the hardware beyond its limits. Modders ported versions of Resurrection Remix and Pixel Experience. Users were running Android 7.1.2 Nougat, and eventually, through sheer wizardry, Android 8.1 Oreo and even 9.0 Pie.
Imagine driving a 1990s economy car and suddenly installing a Ferrari engine. That was the A37fw on a Custom ROM.
❌ No maintainer support – All ROMs are abandoned (last builds ~2019-2020).
❌ Bugs persist – On Lineage 14.1: FM radio broken, OTG unreliable, flashlight toggle sometimes lags.
❌ Camera quality drops – Oppo’s proprietary camera blobs can’t be fully ported; expect worse low-light and video.
❌ Installation is risky – Requires unlocking bootloader (Oppo doesn’t officially allow it; must use MTK engineering tools + SP Flash Tool, which can brick device).
❌ No Android 10+ ROMs – Kernel sources never released by Oppo.