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I'm have A 1100 series device. (AIR-AP1121G-E-K9). I'm download new upgrade file Autonomous To Lightweight Mode Upgrade Image c1100-rcvk9w8-tar.123-11JX1.tar and start upgrade with use web interface.
Upgrade end with error. (red led blink)
Please help me. As restore normal work this device.
Maybe i'm make mistake in text. I'm write and speak on English very bad. Sorry
Did you want to restore it to use as an Automomous or Lightweight AP?
There are several posts up recently for recovery using the Mode button.
Like this one:
Check it out and let us know if you still have questions.
Big thanks.. Problem close.
Step 1 Set the static IP address of the PC on which your TFTP server software runs to an address 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 c1100-k9w7-tar.123-8.JA.tar for a 1100 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 c1100-k9w7-tar.default.
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 the MODE button while you reconnect power to the access point.
Step 7 Hold the MODE button until the Radio 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.