| Feature | Stock Firmware | Custom/Modified Firmware | | :--- | :--- | :--- | | | Disabled / Hidden | Full QXDM / NV RAM access | | Thermal Policy | Aggressive (throttles at 45°C) | Relaxed or disabled | | Carrier Aggregation | Carrier-specific locks | Global combo enablement | | Tx Power | FCC-limited standard | Potentially increased (illegal in many regions) |
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