What's the purpose of A and B partition slots if both are flashed?

What's the purpose of A and B partition slots if both are flashed? twrp slot a slot b slot? 04:41 - Como descobrir o slot ativo atualmente? 05:34 link depo slot Pastikan nilai top up minimum 000 Anda tidak berkurang di rekening TMRW Everyday Account selama setidaknya 14 hari berturut-turut B

link depo slot I use a FP3+ with TWRP on Slot A and e on Slot B I already tried to do it that way by using the “” within the * zip from the download

play slot games online for real money 3:32 Go to channel · What's AB Partition System - Android Boot TWRP in slot a; Install LineageOS , TWRP will install it to slot b! Flash to slot b