How do I check my current BIOS version?
Myself and many others have explained this previously, but going forward don't assume anything on the ASUS SUPPORT pages for the T100TAx models... especially related to BIOS updates and what will work on your T100, this is a poor organizing effort by Asus. There should be separate pages for all T100 models, like the T100TAM, T100TAL, etc has. Yes this is the latest update currently but ONLY for the T100TAS not T100TA, nor T100TAM, nor T100TAL, T100TAF etc'.
If you want to be sure which BIOS version is running on your T100 model or your confused, make sure you check the current BIOS already installed on your T100. To do that, simply do one of the following through Windows, no need to restart and see BIOS, and remember this for future references for any upcoming BIOS releases,
1- Right-Click Start > Control Panel
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2- Administrative Tools > System Information
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or if you want to access it easier/quicker,
1- Press WIN Key + R to Open 'Run Command'
2- Type 'msinfo32.exe' & Press 'Enter'
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Once you have accessed, System Information, read on the right side under 'System Summary' for something like the below highlighted screen, it should clear all your doubts and tell you exactly which model you have and which BIOS is installed, TA, TAF, TAL, TAS, TAM, TAR etc.
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Do not by any means use, EASY FLASH method, or force BIOS by any method on the T100 unit except WINFLASH which works, any other way/method/wrong BIOS you are likely going to brick your T100.
If you know your T100 exact Model and want to upgrade BIOS now, make sure to update your User Profile on these forums here as well, and refer to the sequence of the T100 Latest Model BIOS List for that particular T100 model here.
You can download the BIOS relevant updates from the official Asus Support & Drivers page for that T100 model, which can be found below.
Do Note, On the the below first page which is for T100TA, you will notice alot of BIOS Updates, since there is no separate T100TAS page, you will see it's BIOS updates stacked there too, however T100TA's current latest known BIOS is 313 dated 2014.09.23.
For T100TA & T100TAS (Why Asus Why??),
ASUSTeK Computer Inc. -Support- Drivers and Download T100TA
For T100TAM,
ASUSTeK Computer Inc. -Support- Drivers and Download T100TAM
For T100TAL,
ASUSTeK Computer Inc. -Support- Drivers and Download T100TAL
For T100TAF,
ASUSTeK Computer Inc. -Support- Drivers and Download T100TAF
For T100TAR,
ASUSTeK Computer Inc. -Support- Drivers and Download T100TAR
If you have any other questions/queries, please comment on any other BIOS discussions thread accordingly in the respective 'T100 General Discussion forum section' or search the forums for BIOS discussions to find relevant threads.
Hope this clears out any confusion going forward, until Asus organizes the Support Pages properly, if you are really reading this then, organize properly by adding separate support pages for all T100 Models especially the T100TAS it should not be under T100TA. Goodluck & All the best on upgrading BIOS!