I look on the option upgrade Cisco 1250 AP (AIR-AP1252AG-I-K9 ) from IOS version to LWAP.
Cisco Upgrade utility ver 3.2 not supported WAP 1250 series.
What is process to upgrade Cisco 1250 from autonomous mode to LWAP
Edit: beaten! 5 for Scott.
All of the 1252's have Manufacture Installed Certificate (MIC), so the tool isn't really needed anyway.
Just download the recovery image (c1250-rcvk9w8) and use the archive command (archive download-sw
tftp:///). The difference will be that the WLC information will not be on this converted AP. So, if it is on a different subnet than the management interface of the WLC, you will need to set up either DHCP option 43, DNS resolution or staticly configure it; as per the deployment guide (http://www.cisco.com/en/US/docs/wireless/technology/controller/deployment/guide/dep.html).