AP-9130 does not reset to factory settings using mode button

[krzysztofmaciejewskiit]

1. I disconnect the PoE power supply
2. I hold down the MODE button
3. I connect the PoE power supply
4. I hold the MODE button for more than 30 seconds
5. I wait for the AP to start up


After this process, the AP tries to connect to the old WLC, which means the old configuration is still on the AP, and using the console cable I can't do anything because I get this message:
% Authentication failed
No valid user found, please configure a valid user from Controller

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Another problem is that other APs, which I didn't have to reset to factory settings, just entered the name and IP of the WLC via CLI, are on my WLC in Operation Status = Downloading. I have another AP that I switched from another WLC to the one I'm talking about (by pointing it from the GUI to a different WLC address and resetting the AP) and the AP connected with no problems, and Operation Status = Registered. I didn't configure anything on those APs that are in Downloading state more except IP and WLC name, I did a reset for them after giving them IP and WLC name. The downloading status has been for more than an hour.