Usually this issue can be fixed by “refreshing” your receiver. Please visit the My Equipment page and then select the “Refresh Receiver” link next to the receiver you’re having trouble with. If this doesn’t solve the problem, it means that an expired access card has been inserted in your receiver. If you have another access card, follow these steps:
Step 1
Open the access card door on the front panel of your receiver and remove the access card. Note: On some receiver models, the access card slot is on the right side of the receiver.

Step 2
Insert another access card. The chip should be facing down with the logo or picture facing up.
Still seeing the error message?
Please visit our Technical Forums or call 1-800-531-5000 for assistance.
References
- User Manualmanual.tools
me sale inserte tarjeta de scceso 752
How do I fix DIRECTV error code 752 (Insert Access Card)?
Error code 752 typically indicates that the receiver is having trouble reading the access card or that an expired card is being used. Follow these steps to resolve the issue:
If the error persists, you can contact DIRECTV support at 1-800-531-5000 for further assistance.
Read the full Q&A page