Hold the button and connect your phone to the PC via USB cable.
You will need a computer running Windows 7 or higher.
Once the process shows a "Passed" or success message, disconnect your phone and power it on. It may take a few minutes for the first boot to complete. Troubleshooting and Support Download SP Flash Tool for Nokia phones nokia g21 flash tool full
Open the extracted Flash Tool folder and launch the application (usually named UpgradeDownload.exe or ResearchDownload.exe ). Load the Firmware: Click the Load Packet
You can find official ROM packages on sites like FirmwareFile or MobiFirmware . Hold the button and connect your phone to
The tool should detect the device and automatically begin the flashing process.
This is the primary software used to load and install the .pac firmware files. It may take a few minutes for the first boot to complete
Flashing will completely wipe all personal information from your phone’s internal memory.
uses a chipset, so you must use specific tools designed for this hardware:
button (often a gear icon) and select the .pac file from your downloaded firmware folder. Power off your completely. Connect and Flash: Click the Start button in the tool.