VieOS - COS 16.0.3.503 mod by JackiilVN

- System:

Removed unnecessary bloatware and unused system applications

Removed default Chinese applications to reduce system clutter

- Performance & Battery:

Optimized thermal configuration to reduce overheating

Tuned CPU and GPU behavior for balanced performance

Improved power management to extend battery life

Reduced idle and background power consumption

- Memory Management:

Optimized Flash Swap behavior for smoother multitasking

Tuned Low Memory Killer (LMK) parameters

Fixed and mitigated system memory leaks (memleak)

Improved RAM efficiency and background app retention

- Network:

Applied advanced network and modem optimizations

Improved SIM signal stability (4G/5G)

Reduced signal drops and random network disconnections

- UI & Display:

Fixed bottom screen cutoff issues in some applications (e.g. VNeID)

Improved full-screen mode and gesture navigation compatibility

Optimized UI scaling and layout rendering

- Biometrics:

Added new fingerprint unlock animations

Improved overall fingerprint UI experience

- Features:

Integrated Kousei Toolbox for advanced system controls

Enabled unlimited Google Photos backup via Toolbox

Added AI Mod features

Added Via Browser

Added modified App Store

Game device configuration spoofing (multiple device profiles)

- Security & Certification:

Device certified (Play Integrity / device certification enabled)

Keybox auto-updates via Kousei

Localization

Fixed Calendar application language issue

Corrected default language display to Vietnamese

- Misc:

Various system optimizations and stability improvements

- Recovery:

TWRP included by default for flashing, backup, and advanced recovery tasks

No components are personalized.

No component-level personalization is applied.

All components use default, non-personalized configurations.

No device-specific or user-specific customization is applied.