leandro_m_b

consegui tambem...para o imei nao sumir tem q apagar o codigo referente ao modem 2 linhas...
.(fastboot erase modemst1 e fastboot erase modemst2)
e passei a rom PATCH DE JUNHO.MONTANA_NPPS26.102-49-11_cid50_subsidy-DEFAULT_regulatory-DEFAULT_CFC.xml
 
fica assim o comando
fastboot oem fb_mode_set
fastboot flash partition gpt.bin
fastboot flash bootloader bootloader.img
fastboot flash logo logo.bin
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash dsp adspso.bin
fastboot flash oem oem.img
fastboot flash system system.img_sparsechunk.0
fastboot flash system system.img_sparsechunk.1
fastboot flash system system.img_sparsechunk.2
fastboot flash system system.img_sparsechunk.3
fastboot flash system system.img_sparsechunk.4
fastboot flash system system.img_sparsechunk.5
fastboot flash modem NON-HLOS.bin
fastboot flash fsg fsg.mbn
fastboot erase cache 
fastboot erase userdata 
fastboot erase customize
fastboot erase clogo
fastboot oem fb_mode_clear

fastboot flash logo logo.bin

fastboot reboot

Firmware : 
Link 1: http://www.sammobile.com/firmwares/download/65103/J120HXXU0APA8_J120HZTO0APA8_ZTO/
Link 2 : https://1fichier.com/?m2ayy5un5x
Tutorial: https://www.youtube.com/watch?v=IJZ74XwarxI
Link do programa: http://www.samsung.com/us/support/owners/app/sidesync