| Risk | Description | |------|-------------| | | Incorrect QCN writing can permanently corrupt the baseband firmware, rendering the device unable to connect to any cellular network. | | Security Bypass | Using the tool to change IMEI without proper authorization violates many countries’ telecommunications laws. | | Malware | Unofficial versions of the tool downloaded from file-sharing sites often contain trojans, keyloggers, or ransomware. | | Warranty Void | Any modification of the QCN partition voids the manufacturer’s warranty. | | Anti-tamper Mechanisms | Newer Qualcomm chips (e.g., Snapdragon 888 and later) include hardware-level attestation that rejects unauthorized QCN writes. | 6. Legal and Ethical Considerations Changing an IMEI number is illegal in many jurisdictions , including the United States (under the Wireless Telephone Protection Act), the European Union, India, and China, unless performed by the device manufacturer or an authorized government agency. The IMEI is used by carriers to block stolen phones; altering it can be classified as tampering with a unique identifier, aiding phone theft or fraud.