If you need to unlock or repair more than 3-4 phones per month, Sigmakey is a smart investment. For one-off users, their 24-hour license is a fair option. Sigmakey.com Compatibility: Windows 7/8/10/11 (64-bit recommended) Hardware Required: None for standard unlocks; Medusa/Octoplus boxes for advanced JTAG/eMMC work. Disclaimer: This write-up is for informational purposes only. Always comply with local laws regarding phone unlocking and IMEI modification.