Chosen Solution

My device is Samsung Galaxy E5 (SM-E500H) I want to flash twrp on my device, but it always failed. it says “Custom Binary (recovery) Blocked By R/L what should I do??

See this video. https://www.youtube.com/watch?v=Sy4FWLHx… By the way, this will permanently void your warranty, as it will trip KNOX security, and you cannot undo it. You will also need to root the device. Backup your data first, as you may wipe your phone.

it is saying blocked by r/l because you switched reactivation lock on thats why turn it off and it should work fine . reactivation lock means r/l