Unlocking and relocking bootloaders across multiple Android security patches.
While the tool claims universal support, user testing shows the following devices work best with this update:
: Supports repairing IMEI in Diag Mode for various chipsets. Dual SIM Repair e gsm tool v251 upd
For Qualcomm devices, the tool supports Emergency Download Mode (EDL) to: Flash firmware. Backup/Restore QCN files. Remove screen locks. What's New in Recent E-GSM Tool Updates (v2.x - v4.x)
Extract the files and run E-GSM_Tool_v2.5.1_Setup.exe as an administrator. Backup/Restore QCN files
: Removes Factory Reset Protection (FRP) and Mi Account locks, often requiring server credits for advanced Xiaomi account bypasses.
The utility of E-GSM Tool V2.5.1 depends heavily on selecting the correct connection mode for the targeted hardware task: Connection Mode Primary Use Cases Required Device State Key Technical Benefit Deep flashing, full unbricking, FRP removal Test point shorted / EDL cable Bypasses standard bootloader restrictions Diag Mode IMEI repair, NV data restore, QCN writing Enabled via software command Direct read/write access to modem parameters Meta Mode NVRAM operations, baseline hardware test Power off with hardware key combo Highly stable for MediaTek baseband repair Fastboot Mode Standard firmware flashing, partition wiping Power + Volume Down Fast file transfers for unlocked bootloaders Supported Brands and Architectural Compatibility : Removes Factory Reset Protection (FRP) and Mi
The v251 update focuses on increasing the success rates of repairs on newer models and providing more specialized options for Xiaomi devices.
If a phone is stuck on a bootloop or black screen:
: Once notified of activation, log in with your credentials to access the full feature set. Latest Version Context (2026)
Before launching any setup file (such as EGSMTool_Setup.exe ), installers must load proper hardware filters: