micromax_a102 to jelly bean flash file update

micromax a102 how to update need ota tested file
a102,zaw1800f_060a_kk_v8_0_a,a102.jellybeanto kitkat_updtae_ .zip Micromax_A102_ZAW1800F__(4GB+1GB)

I HAVE DOODLE 3 , I DOWNLOADED WITHIN WIFI FIRMWARE UPDATE OF DOODLE 3 MORE THAN 6 TO 7 TIMES BUT WHEN IM GOING TO INSTALL THAT THE PHONE IS REBOOTING, AND WORKING WITH 4.2.2 JELLYBEAN OS SO PLZ SHOW ME HOW TO INSTALL OTA MANUALLY WITH SP TOOL AND STOCK ROMS
AND HOW TO DOWNLOAD STOCK ROM FOR DOODLE 3 . PLZ…PLZ…PLZ

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