What happens when we try to flash custom ROM via stock recovery

to flash additional zips please reboot recovery to switch to the update slot   Dan toto slot 777

Guide: how-to-flash-any-custom-rom-via-twrp-recovery In this video, we

Flashing AB zip to inactive slot: B Step 12 Step 22 To flash additional zips, please reboot recovery to switch to the updated slot  How updates work on devices with seamless updates · If an update fails, the device will roll back to the working build on the other slot · Your

sister slot zip' Flashing AB zip to inactive slot: A Updater process ended with ERROR: 1 To flash additional zips, please reboot recovery to swith updater How updates work on devices with seamless updates · If an update fails, the device will roll back to the working build on the other slot · Your