why is my phone saying custom binary blocked by frp

My bet is Samsung will charge to repair the phone. If you want to keep trying king stuff head to their support forum. Or look into XDA Forums. I know this is upsetting to some but Samsung would only put it back to working order and since it's self inflicted charge for the repair.

Hi I had this problem too took me a week to find a solution to fix it it pissed me off
To fix this problem first u have to download SMART SWITCH then install it
Then click emergency software recovery and don't plug your phone to your computer yet then enter your phone model and s/n after it will explains the rest
Sorry for bad English

Oh and this can take over an hr (depends)

Im 15 yrs old and im newbee and when i rooted my samsung j5 using kingroot .. i restarted my phone .. then that message popped up .. i was so worried... i dont know what to do and i just bought my phone 1 week ago.. so we went to samsung service center.. they said my warranty cant do anything about it.and i must pay 2500 pesos to repair it.. .because I modified it.. so I was like.. im dead... I've researched how to fix that problem..all night.. they said flash your stock rom firmware .. i didnt even know what flash2x thing or the stock2x.. until i watched a tutorial in youtube .. it says how to fully unroot samsung j5.. but it also works on other phones.. like your phone.. the man who did the tutorial.. as you'll see in the tutorial in youtube.. his phone is on .. it doesnt matter.. it can fix the frp problem..
First is .. 1. Download Odin in pc .. its size is 2 mb 2. Download samsung usb drivers. size is like 15 mb . 3.. download your stock rom firmware.. just search in google "download stock rom firmware of (name of your phone) its download name is like this.. example in samsung j5.. J5OOHXXU1AOH2..that is the build no. Of my phone.. there are many downloadable stock rom also depends on what country u are ..me in philippines .if in other countries.. the build no. is different. So download your stock rom depend on your countries' build no.. if you dowbload it.. its size must be big .. like 1 gb or more.for me i downloaded at sammobile.com you can download there too. after that run samsung usb drivers .. and odin ..install them ... be sure to extract all your dowbloads.. after that .. plug your usb port from your phone to pc.. and go to download mode.. just click power button on your phone and home button and volume down button at the same time.. youll see download mode.. then open odin .. be sure to untick re-partition box.. and find the AP box and click it.. you insert your file ..the stock rom you downloaded.. and wait .. the odin will not respond.. but just wait.. then it will be inserted .. then click start at the bottom and wait.. after that your phone will boot .. and it will be on again .. but first sign in your google account to restore your apps.. and samsung acc... now your phone is fixed and no longer in frp lock mode again.. and your phone is fully unrooted and your device status will be official not custom..

I HOPE THIS HELPS YOU AND OTHER PEOPLE WHO CANT SOLVE THIS PROBLEM..
This is the title i watched in youtube."How to fully unroot samsung j5".dont worry if i searched j5..just follow the video it works on your phone too . But only different in stock rom... and search .. click at the first video you've searched .. the name who made it is vortex code and its 1 month ago... this might help you what i just explained.. ;D

Gimme ur fb too

First ..search sammobile.com in google..
Then click the 1st search result .. then login your account.. i guess i'll give you my account .... user.. Djinn43 .. pass .. 34nnidj...then go to this link .. http://www.sammobile.com/firmwares/
Then write the name of your device then download.. that might help u ... sorry for not updating

I have the same problem please help me