Flash mode and Fastboot mode for dummies topic

I have been struggling around a lot with my Xperia T

One thing that struck my attention is that every howto on how to get into flash or fastboot mode states that you just push up or down and plug in the USB to get into Fastboot resp. Flash mode.

On my phone that does not work and never did.

How to get into Fastboot mode
- switch off phone
- push vol up
- plug in USB
- now push on/off too until phone vibrates
- release buttons and off you go into Fastboot (blue led)

How to get into Flash mode
- switch off phone
- push vol down
- plug in USB
- now push on/off too until phone vibrates
- release buttons and off you go into Flash mode (green led)

Hope with this I can save some people a lot of time searching how to get the damned thing into the good mood (mode)