IPC - solution for authorization license failed - 202202

Step 1: 

update to the newest firmware, main program .bin file and firmware.bin file both need to be updated.

If step 1 doesn’t work, then 

Step 2:

Install the specific configtool, output the .dat file and transfer to your Dahua technical support.

Specific configtool:

https://drive.google.com/file/d/1sPIbh-ykzL29wX0K1LRgl1sy7zAv-DyB/view?usp=sharing