In essence, the is a flashing and unlocking utility that communicates with the phone’s download mode to rewrite security partitions, NVRAM, or the entire firmware.
For bootloader-specific requests, third-party developers like Hikari Calyx Tech provide specialized unlocking services for Nokia HMD devices. nokia spd unlocker tool v10 link
Using third-party unlocking utilities carries inherent risks. Modifying mobile device partitions can result in a permanent "brick" state if executed incorrectly. Users assume full responsibility for any hardware or software damage resulting from the use of this software. In essence, the is a flashing and unlocking
Before downloading, upload any v10.exe file to VirusTotal.com . A clean tool should have no more than 2 detections (usually false positives for "hacktool"). If you see 15+ detections, abort immediately. nokia spd unlocker tool v10 link