Help Me About Signals

[planetmaker]

(new)grfs are extensions and not the programme itself. So: no.

[HeiRos]

is there any way that i can update openttd in my phone through replacing the grf files?

NewGRFs are extensions for OpenTDD. There is nothing to replace, you can download this files and activate one ore more for the next game. Some links with instructions:

When using savegames from the Public Server Archive the best way is first to download the NewGRF package. And read the notes for the reason, why OpenTTD sometimes complains about missing NewGRF files.
Download ingame
Manual download and activate

[Gremnon]

The game is more than just the grf files, so no.
You need to replace the binary, which means also the language files to avoid issues there, and any new files or versions of files in the data folder. At the very least.

[WaterOfHell]

so i can only play latest sav file on my laptop not on my phone.Uhmm..can someone show me one junction?not the easiest.

[ChillCore]

so i can only play latest sav file on my laptop not on my phone

Sure you can. You will just have to find a newer version compiled for your phone and overwrite the one that is installed.

Uhmm..can someone show me one junction?not the easiest.

Click on the right for many more of various complexity.
http://wiki.openttd.org/Basic_3-Way

Also, how about playing and trying stuff? From your mistakes you'll learn much more than just copying someones layout.

[WaterOfHell]

thanks for all members that helped me here.I know now how to play.