If you used a tool and the phone is now dead, stuck with a blank screen, or recognized by Windows as Qualcomm HS-USB QDLoader 9008 , the tool likely corrupted the firmware.
Do not click "Unlock" yet. You must restore the NVRAM structure first. qualcomm sim lock unlock tool fix
| Tool Name | Best For | Cost | Success Rate | |-----------|----------|------|--------------| | | Advanced NV editing | Free (Qualcomm official) | High (if used correctly) | | Octoplus Box | Automatic unlock for Samsung, LG, Xiaomi | Paid (hardware box) | Very high | | Z3X / Easy JTAG | Professional repair & unlock | Paid | Very high | | Ultimate GSM Tool | User-friendly SIM unlock | Paid (trial available) | Medium-High | | DFS (CDMA Tool) | US carrier unlocks (Verizon, Sprint) | Paid | High | If you used a tool and the phone
Some carriers (Verizon, AT&T, Vodafone UK) now use a physical one-time programmable (OTP) switch inside the Snapdragon X60/X65 modem. Once locked, no software can unlock it. The only fix is: | Tool Name | Best For | Cost