How to transfer a license from AC6005 to another replacement one

Hi Steelblue,
Please refer to the following steps:
1．Obtain the esn and the revocation code of the old and new devices:
The license revoke command revokes a license file.
The display license revoke-ticket command displays the revocation code of the current license file of the device.
2. Log in to the ESDP system at http://app.huawei.com/isdp to perform operations.
Or Send the device ESN、revocation code and your requirements to license@huawei.com，apply for a change operation.
For more details, please refer to Migrating Licenses Between Devices

If you can't get the revocation code, please contact TAC