Issue:

I generated a license for the dual-SIM device using its IMEI number and it was working fine since till today when it stopped and started returning "IDKit ERROR: IDKit error 50003 : License has different HWID than this machine." Could you please help me to resolve this problem?

Cause:

Switching from SIM1 slot to SIM2 slot of the device also causes a change of the IMEI number used to generate the Hardware ID.