2960X-48FPS-L switch showing unknown with SFP plugged in.

show interface status
Gi1/0/49                     notconnect   1            auto   auto unknown     (GLC-SX-MMD)
Gi1/0/50                     notconnect   1            auto   auto Not Present(no SFP installed)
Gi1/0/51                     notconnect   1            auto   auto unknown     (GLC-SX-MM)
Gi1/0/52                     notconnect   1            auto   auto unknown     (GLC-LH-SM)
* no matter what type of SFP is installed switch just shows unknown
show version
Cisco IOS Software, C2960X Software (C2960X-UNIVERSALK9-M), Version 15.0(2)EX5, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2014 by Cisco Systems, Inc.
Compiled Fri 21-Feb-14 05:54 by prod_rel_team
ROM: Bootstrap program is C2960X boot loader
BOOTLDR: C2960X Boot Loader (C2960X-HBOOT-M) Version 15.2(2r)E1, RELEASE SOFTWARE (fc1)
uptime is 3 weeks, 6 days, 16 hours, 53 minutes
System returned to ROM by power-on
System restarted at 00:49:12 UTC Fri Mar 20 2015
System image file is "flash:/c2960x-universalk9-mz.150-2.EX5/c2960x-universalk9-mz.150-2.EX5.bin"
Switch Ports Model              SW Version            SW Image
*    1 52    WS-C2960X-48FPS-L 15.0(2)EX5            C2960X-UNIVERSALK9-M
Configuration register is 0xF
I've read maybe a IOS issue, but why would the recommended version still have a bug like this in it?
I have upgraded to 15.2(2)E2, and also downgraded to 150(2)EX3 and no change with status on SFP ports, still showing unknown for any SFP plugged into them.
Moving on to another switch, just to verify if its a single switch issue or not. I had a c2960x-24ps-l and this switch was on IOS 15.0(2)EX5 like the 2960x-48fps-l, but this switch did recognize the 4 different SFP's I plugged in. So it doesn't look like an IOS image issue.
I have another 2960x-48fps-l, i'll fire up and see if it recognizes the SFP's.

Leo, just saw your updated message, I fired up two other same model switches with identical IOS's one 24port and the other another 48 port model, and both were able to identify the SFP's correctly.
The one thing different on the switch not identifying the SFP's is the [SYST] light on the front of the switch is amber in color, with the [MAST] and [STAT] lights green. On the switches that did read the SFP's correctly all three lights were green.

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