Specifically optimized for older Nokia ecosystems including Series 30+, Series 40, Asha, Nokia Belle, and the Nokia X platform. System Requirements & Prerequisites
Unlike a standard factory reset, NSRT completely wipes the existing operating system and installs a fresh copy of the latest compatible firmware. Nokia Software Recovery Tool 6.2.55
To use NSRT 6.2.55, your computer should meet the following minimum specifications: Windows 7 or later. Nokia Software Recovery Tool 6.2.55
It is highly effective for phones stuck in "power cycle loops" or those that freeze on the startup logo. Nokia Software Recovery Tool 6.2.55