My phone does not working properly when i put sim in phone then it automatically restating again and again ?

SOURCE: CHINA MOBILE N92

Hi
You can reformat your unit.. just follow this instructions. just off the fone then, press together the key no. 3 Astiris and phone in.. press in sustained position then turn on the power switch then you can see your fone is starting to refurmat...

SOURCE: PLZ HELP ME MY CHINA MOBILE IS RESTART WITH SIM

dear,
i was facing the same problem. the solution i found, is that;
i charged the battery without charger, specific to the mobile then i faced this problem. i dont know why but it happend to me. then i charged the mobile with its genuine charger that was with the cell phone. the problem solved. now its working fine with sim and without sim.
i was using chinese set copy of nokia 5310. may be the conditions work with yours.
regards,
salman

SOURCE: phone help

you have a firmware problem on the mainboard, you will need to take the phone to amobile repair shop and have them reflash it for you...

SOURCE: not working with sim

U r problem is of software u should flash it.

SOURCE: display of the nokia N73 phone is not work

all n73 models have dynamic memory make sure that u r phone memory as well as mem card is above 70% then u r display gets slow&phone too...