cant flash twrp

hi i have kiw-l11c185b130 it was root befor root i download update b140 but dont install after root i Install update but phone dont come up i flash system recovery boot and cust c432b130 by mistake phone come up and built change to c185b140 but when i flash fastboot still stock recovery come up i try many way (flash rom again or flash difrent verson twrp. erase system boot recovery and flash again) bu dont work .i have to quistion
frist :how inestall twrp
Second: if have a way to chang build number to c432 what i want know