Mohtaram memad and fazalwahab11375 Sahiban,
Flightradar24.com uses modern ADS-B (automatic dependent surveillance - broadcast) type of surveillance in Malaysia and it depends on a different transponder fitted on the plane. The Malaysian Airlines flight MH 370 Boeing 777-200 was fitted with an ADS-B transponder and there are two ADS-B receivers fitted on the ground in Malaysia which have a patchy coverage. Patchy coverage means any aircraft below 30,000 feet can't be picked up by ADS-B receivers on the ground and this aircraft was at 35,000 feet. Now, ADS-B receivers did pick the flight up on its system once it hit 30,000 feet and continued to climb until it hit 35000 feet. What happened next is a mystery. Transponders for both SSR (Secondary Surveillance Radar System) and ADS-B (Automatic Dependent Surveillance - broadcast system) stopped working at the same time and the flight went off the screens of both ATC (Air Traffic Control which uses SSR: secondary surveillance radar system) and that of flightradar24.com (which uses ADS-B) technology. Did both the transponders malfunctioned or were turned off by someone is yet to be determined.
Conclusion: Data from flightradar24.com is already in place and is not going to help.
Regards.