In DC unlocker, after detecting the device, write following command
AT^CIMEI="Replace with your IMEI number"
Writing Serial no:
AT^SN="16digit serial number"
To use without battery:
AT^NVWREX=50364,0,4,01 00 00 00
Note: It may erase IMEI and serial number. So it needs to be rewrite.
To undo this:
AT^NVWREX=50364,0,4,00 00 00 00