Hi i hve a mazda etude 2002 model it doesn't start it is flashing a mobalizer light no spark and it's hve a battery light on dash no hazard no indicater

Hey. If you have the immobiliser light on then the car will not start. Have you dropped your key recently? The tiny chip inside may be broken or missing. Can you try your spare key?
If not you should get a local mechanic who has a diagnostic scanner to check your ignition / immobiliser systems and give you accurate advise.
Do not guess or listen to people who don't know, it will cost so much more time / money