How to reset Cisco Air Ap |

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[@jogajogprojukti4571]

Have done, as
1. (AIR-AP1832I-C-K9) Connected console port
2. press mode button, power up the AP
3. release the mode button after 23 sec
all is doing well but after reboot AP is shown as previous setup.
So, what is the procedure to reset it completely to default?