| Metric | Stock Android 8.1 | Custom ROM (A14) | Δ | | :--- | :--- | :--- | :--- | | Geekbench 5 (ST) | 124 | 138 | +11.2% | | Boot time (cold) | 34.2s | 27.1s | -20.7% | | RAM usage (idle) | 1.2GB | 890MB | -25.8% | | GPU (Manhattan 3.0) | 9.8 fps | 10.2 fps | +4% |
Install Android R/11 Stable On Galaxy J7 2016/J7 Nxt/J7 Prime! j710f custom rom
| Issue | Likely Cause | Solution | |-------|--------------|----------| | | Corrupted EFS | Restore EFS backup from TWRP. If none, flash stock ROM with Odin. | | Bootloop after flashing | Wrong Gapps version or dirty flash | Wipe System/Data and reflash ROM only. | | Wi-Fi won’t turn on | Kernel mismatch | Reflash the ROM’s included boot.img or install compatible kernel. | | Camera crashes | HAL3 not enabled | Add persist.vendor.camera.HAL3.enable=1 to build.prop. | | Battery drains fast | Rogue app or wakelock | Use BetterBatteryStats; check for NFC or GPS scanning. | | SafetyNet / Play Integrity fails | Lack of spoofing | Flash Magisk with Play Integrity Fix module. | | Metric | Stock Android 8