My MediaFlex 2811 AP Cant't Upgrade new firmware ?

[sam_ng_5826209]

My MediaFlex 2811 AP Cant't Upgrade new firmware ? My 2811 AP firmware version 3.1.1.1636, I find new version firmware is 4.1.0-15 Firmware,I download it and Upgrade,But I can't Upgrade New firmware ,Firmware Update Failed,Error code: File type error.Why?
the firmware file name is 410-15.sys

[sam_ng_5826209]

I download 410-15.bl7 firmware again from website.And i try upgrade again .but still update failed,error code: file type error.why? My 2811 AP current firmware version"3.1.1.1636" can't update new version 410-15.bl7?Help Me?
SOS!!!!

[keith_redfield]

Hi Sam,

Unfortunately the version of code you are currently running is the last version the device you have will support. Later versions of the product (and this is now an End Of Life product) could be upgraded, but the version you have cannot be updated.

Sorry for the bad news.

-Keith