How to restore Demo Tour in Sony Ericsson A100 and A200 phones without reflashing!

I have seen a lot of people in Forums asking how to restore the Demo Tour function back,
Even though why you want to restore such a thing, i understand the desire to make your phone feel like new.
Even myself sometimes reflash my used phones to get Demo Tour function back, to me it made Sony Ericsson unique.
Long time people believe in order to restore Demo Tour function is to reflash, or to put the original video back
where you find it then did a Settings Reset, but this doesn't always work.
Turns out the phone saved a bit on a file in tpa/system/settings/demomode.video.@ to determine if the Demo Tour video
is deleted or not. if you delete the video, this file gets updated telling the Menu to disable Demo Tour under Entertainment.
This video will teach you step by step how to restore the Sony Ericsson Demo Tour Function step by Step.
it should work on all A100 and A200 Sony Ericsson's that came with Demo Tour function.
RELEVANT LINKs:
FarManager SEFP2 - drive.google.c...
Install either GG Driver or Sony Update Service.
Gordon's Gate Driver - drive.google.c...
Sony Update Service - drive.google.c...
main2raw & SEFStool4 - drive.google.c...
read3150 - drive.google.c...
demomode.video.@ - drive.google.c...
demomode.video.@ file cannot be extracted from a firmware, it is present only on FS atter flashing.
IF : SEFStool4.exe gives you an error and crashed, try changing the application's compatibility to Windows XP SP1.
if you're getting .raw file bigger than it should be, try using different filesystem from different firmware version, cid53 ones work best. otherwise try any that will work.
Music - Animal Crossing New Horizons - The Roost OST

[@simoel2419]

Brother 4se tool don't work in Windows 11 Can help me ?

[@Curiogen]

Can you help me to get working version of 4se tool. I downloaded from your video link it say smart card not found give smart card driver issue.. and does not loader work as your loader give two popup... Can you make video to fix this issue. I am using windows 10

[@araiguma_sonyericssonstuff]

The loader application does not work on Windows 8 and above, use Windows 7 or XP in a Virtual Machine