Imei ,imeisv, s/n unavailable after flashing stocl rom

hello im newbie in xda, im using micromax a092 with qualcomm snapdragon processor recently i have flashed stock rom via fastboot (xdafirmware.com) after flashing my phone wont connect to network then somehow i managed to write imei1&imei2 but still have network issue when using 3G. its perfect in 2G but when i change to 3G after few minutes i lost network in both sim i can use data connection for few minutes also then i have to turn on flight mode and turn off to get the network . i checked my phone status . now my Imeisv1 and imeisv2 is "00" and wifi mac ,bluetooth address, serial number is unavailable. my phone still have warranty but i doubt without serial number they not gonna accept the warranty i know my S/N number . is there any way to write S/N number ? i dont have any backup