- Jul 15, 2026
- 4
- 0
- 1
Nokia OST Tool is an official application developed and distributed by Nokia Mobility for servicing Nokia Android devices on Windows PC. The full name is Online Service Tool, and it is the standard flashing utility used by Nokia service centers for installing official stock ROM files in .nb0 and .mlf format.
Key Features of Nokia OST Tool
- Flash official Nokia stock ROM in .nb0 and .mlf format
- Reset screen lock on Nokia Android devices
- Remove FRP lock on Nokia Android devices
- Supports Nokia Android smartphones and tablets
- Requires MAC address change for login authentication
- Login protected with Account ID and Password
- Includes USB driver support inside the ZIP package
- Includes tutorial inside the ZIP package
- Official tool by Nokia Mobility — distributed free of charge
- File Name: OST_v6.3.7.zip
- Version: v6.3.7
- File Size: 128.8MB
- Author: Nokia Mobility
- Supported OS: Windows PC