Treat the firmware with respect. It’s the only thing standing between you and a very expensive black mirror.

When you hold a TCL 30 V 5G, you’re holding glass, aluminum, and a battery. But what brings it to life? Not the hardware—hardware is just a beautiful corpse. The real ghost in the machine is the firmware .

When TCL releases firmware version TCL_A1BV_1.0.2 , it increments a counter inside the aboot partition. If you ever try to flash 1.0.1 over 1.0.2 , the phone checks that counter, sees it's lower, and .

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