Boot into by holding the Volume Down + Volume Up buttons simultaneously while connecting the phone to your PC via a USB cable.
Upgrading your software manually transforms your user experience in several key ways:
: A newer project designed to bring flagship Samsung features (like DeX and Galaxy AI) to budget hardware, though performance on 2GB RAM may vary. Performance & Hardware Constraints
While installing a custom ROM can be a rewarding experience, it's essential to understand the risks involved: samsung galaxy j4 plus custom rom hot
| Issue | Fix | | :--- | :--- | | WiFi or Bluetooth MAC address changes | This is normal on AOSP ROMs for this chipset. | | FM Radio doesn't work | No custom ROM supports it; use online radio. | | Encryption doesn't work | Avoid encrypting; it breaks TWRP access. | | Low in-call volume | Install JamesDSP or ViPER4Android module. |
The community consensus is that builds are the most practical and enjoyable for day-to-day use on this budget phone.
is absolutely worth keeping alive, but only if you install a custom ROM. is recommended for stability, while Pixel Experience is best for a modern feel. Boot into by holding the Volume Down +
The development community focuses closely on stability for this specific device. The most popular options available on the XDA Forums and local developer networks balance modern features against light resource impact. Samsung Galaxy J4+ / J6+ Updates – Telegram
, giving it a smoother interface, better battery management, and an updated Android version.
, it significantly reduces the RAM footprint compared to Samsung’s stock One UI. 2. LineageOS (Android 10 Unofficially Optimized) : Battery life and deep privacy controls. | | FM Radio doesn't work | No
Follow these specific instructions to install your custom ROM safely: Step 1: Boot into Recovery Mode
| ROM Name | Android Version | Stability | Key Features | Latest Update | | :--- | :--- | :--- | :--- | :--- | | | Android 10-12 | Stable (Pixel Experience) | Optimized for multitasking, fast charging, elegant UI, Google Pixel look | Dec 2025 | | Samsung Experience 9.5 | Android 8.1 Oreo (Stock-based) | Very Stable | Pure stock Samsung UI; ideal for downgrading on newer binary (U6) | Oct 2025 | | ProjectSakura 5.R | Android 11 | Stable (Daily Driver) | Lightweight, near-stock, superior RAM management, battery efficient | Aug 2025 | | LineageOS 19.1 | Android 12 | Experimental (Bootloops) | Modern Android 12 UI, advanced customization, Magisk support. Note: Not for daily use | Nov 2022 | | Evolution X 6.7 | Android 12 | Unstable (Test Build) | True Pixel UI with extensive configurations. Use at your own risk | Sep 2023 | | /e/OS | Android 12 | Unstable | Focused on privacy, de-Googled experience | Oct 2025 | | Resurrection Remix | Android 10 | Stable (Classic) | Legendary customization; combines best features from many ROMs | Older but reliable | | Pixel Experience | Android 9 | Stable | Authentic Google Pixel feel on your J4+ | Older but reliable |
The phone that might have felt slow and outdated can once again become a smooth, customizable, and modern tool. The best ROM for you will depend on your preferences—whether you crave the latest features of REVIVE OS, the legendary stability of LineageOS, or the privacy-centric focus of /e/OS.