This is very possible, have a look at the following;
Reverting the Access Point Back to Autonomous Mode
It is possible to revert an LWAPP-enabled Cisco Aironet access point back to autonomous mode. Please refer to Upgrading Autonomous Cisco Aironet Access Points to Lightweight Mode for detailed instructions on reverting to autonomous mode. Use this URL
Converting a Lightweight Access Point Back to Autonomous Mode
You can convert an access point from lightweight mode back to autonomous mode by loading a Cisco IOS Release that supports autonomous mode (Cisco IOS release 12.3(7)JA or earlier). If the access point is associated to a controller, you can use the controller to load the Cisco IOS release. If the access point is not associated to a controller, you can load the Cisco IOS release using TFTP.
Using a TFTP Server to Return to a Previous Release
Follow these steps to revert from LWAPP mode to autonomous mode by loading a Cisco IOS release using a TFTP server:
Step 1 The static IP address of the PC on which your TFTP server software runs should be between 10.0.0.2 and 10.0.0.30.
Step 2 Make sure that the PC contains the access point image file (such as c1200-k9w7-tar.122-15.JA.tar for a 1200 series access point) in the TFTP server folder and that the TFTP server is activated.
Step 3 Rename the access point image file in the TFTP server folder to c1200-k9w7-tar.default for a 1200 series access point, c1130-k9w7-tar.default for an 1130 series access point, and c1240-k9w7-tar.default for a 1240 series access point.
Step 4 Connect the PC to the access point using a Category 5 (CAT5) Ethernet cable.
Step 5 Disconnect power from the access point.
Step 6 Press and hold MODE while you reconnect power to the access point.
Step 7 Hold the MODE button until the status LED turns red (approximately 20 to 30 seconds) and then release.
Step 8 Wait until the access point reboots, as indicated by all LEDs turning green followed by the Status LED blinking green.
Step 9 After the access point reboots, reconfigure it using the GUI or the CLI.
This conversion from LWAPP to Autonomous is very possible as Stephen from Cisco noted. This question comes up quite often when people end up with an LWAPP AP and they really wanted an autonomous one. The really great thing that Cisco has done with this product is the ability to convert them back and forth. Here is a little Q & A excerpt that covers a related question;
Q. I have converted my AP to lightweight mode, but I need to convert it back to autonomous mode. Is it possible?
A. Yes, you can convert autonomous APs that you have converted to lightweight mode back to autonomous mode.
I have a BR1310 that is LWAPP. It also comes up with a 10.0.0.1 address. I set it up to look for the tftp-server but there is no "mode" button on the 1310 to make it reboot and look for the tftp-server. I can't go into config mode and change it because it is already LWAPP. And it won't find the controller because the controller is on a different subnet. How do I get it to 1) find the controller or 2) convert it back to IOS then convert it again to LWAPP?
I am not very familar with the 1310, but pehaps you could reset it to default using this method and let it rediscover the controller;
Clearing Manually Entered Controller Information
When you need to move your access point to a different location in your network, you must clear the manually entered controller information to allow your access point to associate with a different controller.
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