Release the button when the phone's LED indicator turns green, signaling it has entered .
The QUnlockTool Sony works by connecting your Sony Xperia device to your computer via USB. The tool then communicates with the device to unlock the bootloader. The process involves:
: qUnlockTool is not free; it operates on a credit-based system where one credit (typically costing around €25 or $20) is required per device. Important Current Limitations Server Availability
On global or "unlocked" Sony Xperia phones, the status in the TA is set to "allowed," and users can freely obtain an unlock code from Sony's Developer World portal using their device's IMEI number. However, on Japanese carrier models (Docomo, AU, SoftBank), these carriers instruct Sony to set the bootloader unlock allowed status to "No," effectively locking it down from the factory. As a result, even if the OEM unlocking option is enabled in developer settings, the fastboot command will fail. qunlocktool sony
EDL unlocking is risky. If the tool loses power or uses an incorrect partition map for your specific Xperia model (e.g., XQ-CT54 vs XQ-CT72), you can overwrite critical bootloaders. The result: A device that shows no LED, no charging icon, and cannot enter recovery. Recovery requires a complex "blank flash" cable or JTAG.
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: A high-quality USB-C or Micro-USB cable (preferably the original OEM cable) plugged directly into a motherboard port. Avoid USB hubs. Release the button when the phone's LED indicator
What or status do you see in the *#*#7378423#*#* service menu? Which network carrier is the phone currently locked to?
Directly fixes hardlocked Xperia devices that no longer accept standard manual codes.
: Temporarily disable active Windows Defender real-time protection, third-party antivirus suites, or active VPN connections that might flag server requests. The process involves: : qUnlockTool is not free;
Once the process is complete, you repeat the dialer code to verify that "Bootloader unlock allowed" has now changed to "Yes." At this point, you can proceed to unlock the bootloader using standard fastboot commands and the official unlock code from Sony.
: Access usually requires purchasing a server credit from a third-party reseller.