Cisco 3750G-24TS-E IOS upgrade

Hi, I'm trying to upgrade IOS for a WS-C3750-24TS-E and confused on the below questions

1. What is the latest IOS version that I should use?
The current image is as below

System image file is "bootflash: cat4500e-entservicesk9-mz.122-54.SG1.bin"

2. Can I use TFTP?

3. What would be the procedure ? Thanks in advance and appreciate your help
s dasAsked:
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s dasAuthor Commented:
Apologize for the incorrect info

The current image file is as below

Interesting boot file :) for 4500 series.

You can find supported IOS versions Cisco - Download Software (requires valid contract support) Looks like the last one is c3750-ipservicesk9-mz.122-55.SE11.bin

You can use TFTP to copy file to flash prior to upgrade.
copy tftp flash

and then just change boot:
boot system flash:c3750-ipservicesk9-mz.122-55.SE11.bin

Recommended would be to delete old IOS versions after you make sure that new version is booted properly
You can save running to startup config prior to upgrade.
wr mem

To check exact model of your device issue:
sh inv
To check IOS version that is currently in use issue:
sh ver | i IOS

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s dasAuthor Commented:
Perfect and yes the boot file was incorrect :) thanks Jovic
You are welcome.
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