Download Android Jelly Bean 4.2.2 stock firmware for Karbonn Smart A2+ smartphone from here or here. Download another Karbonn firmware from here.
Archive: Karbonn A2+ 4.2.2
Model: Karbonn Smart A2+ smartphone
Project: telacom72_wet_jb3
Config_version: V1.1.1
Build number: telacom72_wet_jb3-user 4.2.2 JDQ39 eng.builder.1378366052 release-keys
Baseband: MT6572_S00_MOLY_WR8_W1315_MD_WG_MP_V1_P1_1_2g_n
Archive: Karbonn A2+ 4.2.2
Model: Karbonn Smart A2+ smartphone
Image file size: 244 MB
Platform: Mediatek MT6572Project: telacom72_wet_jb3
Config_version: V1.1.1
Build number: telacom72_wet_jb3-user 4.2.2 JDQ39 eng.builder.1378366052 release-keys
Baseband: MT6572_S00_MOLY_WR8_W1315_MD_WG_MP_V1_P1_1_2g_n