You must use libusb filter drivers (via Zadig 2021) to allow 2021 tools to see the SC7715 in "Download Mode."
: Ensure the Spreadtrum (SPD) Drivers are installed so your PC can recognize the device in Diag mode. sc7715 imei tool latest version 2021 top
field. If the phone is dual-SIM, enter the second number in the You must use libusb filter drivers (via Zadig
The (often referred to as the Spreadtrum WriteIMEI tool) is a specialized utility used for repairing or writing IMEI numbers on mobile devices powered by the Spreadtrum SC7715 chipset. Core Functionality Core Functionality – If you need to restore
– If you need to restore a lost IMEI after flashing firmware, use licensed tools from your device’s manufacturer or authorized service center. For Unisoc/Spreadtrum, legitimate tools include ResearchDownload , UpgradeDownload , or SN Writer (official versions from the SoC vendor, not cracked/modified).