. For more technical details, you can refer to the official Cisco Release Notes for 15.3(3)JBB1 AP 3702i - IOS version for Autonomous Mode
If the above fails, your only solution is the described in Part 3. The TAR file contains the necessary info file that automatically rewrites the bootloader parameters. Ap3g2-k9w7-tar.153-3.jbb1.tar WORK
Replace 10.0.0.100 with your TFTP server's IP. . For more technical details