A: Almost impossible. Modern chips require authenticated commands. No free tool works.
Simple utility specifically for writing dual IMEI numbers to Qualcomm-based devices. QPST / QFIL qualcomm imei repair tool without box
: The device must be in Diag Mode for the software to communicate with the EFS partition. This is often done via dialer codes like *#*#717717#*#* or through ADB commands. A: Almost impossible