Cisco Wireless :: AIR-LAP1142N-E-K9 / Reset To Factory Default Doesn't Work On 1142 AP

We have an AIR-LAP1142N-E-K9  deployed in a H-REAP setup.This AP already got the configuration from the WLC when it was deployed at a remote site.Now we moved it to another site, but it doesn't appear in the WCS and i don't see any CAPWAP debug messages on the WLC.The routing work fine between the AP and the WLC, the AP also gets an IP address from DHCP and also received Option 43 information.
 
Now my guess was that the AP doesn't associate with the WLC because it has the old config file and it runs in local mode(without trying to connect to the WLC).We want to reset to factory defaults because we want to delete the configuration and force the AP to get a new config from the WCS.I don't know the enable password so i had to use other methods for reseting to factory defaults.
 
I tried to use the information from here:[URL]I used the "MODE button":I get the following message from the console:

"button pressed for 5 seconds
process_config_recovery: set IP address and config to default 10.0.0.1"