This backup is your only lifeline if new firmware fails.

| Component | Description | |-----------|-------------| | | First-stage loader (U-Boot). Initializes DRAM, storage, display. | | Kernel | Linux kernel (usually 3.10.x or 4.4.x). Contains drivers for WiFi, BT, audio. | | System image | Android (5.1–7.1), Linux (Armbian, LibreELEC), or rarely Android 8+ (unofficial). | | Parameter file | Partition table layout (critical for flashing). | | Resource image | Logo, boot animation, kernel device tree. |