: Reliable communication requires a cable with an FTDI FT232RL chipset (or similar) to emulate a virtual COM port. Generic cables using CH340 or PL2303 chips often fail to establish stable connections.
Marta’s mind raced. The HP605 had been found in a ditch. Someone had lost it—or planted it. The software she’d used for years, the official Hytera build, had been quietly replaced. But when? She checked the file signature. It was still digitally signed by Hytera Co., Ltd. Valid certificate. No tampering. Hytera Hp605 Programming Software