If you are uncomfortable using third-party tools, many manufacturers recommend taking the device to an authorized service center like Carlcare or Airtel Support to have the stock operating system reloaded. How to use Spreadtrum WriteIMEI tool
In many regions, changing an IMEI to a different one (especially from a stolen device) is illegal. These tools should only be used to restore your own device's original, legal IMEI. Sc7715 Imei Tool Download
The is a specialized utility designed for devices running on the Spreadtrum (SPD) SC7715 chipset . It is primarily used by technicians and advanced users to restore or "repair" a device's unique identification number (IMEI) after it has been lost or corrupted during firmware flashing or rooting processes. Key Features of the SC7715 IMEI Tool If you are uncomfortable using third-party tools, many