I had done a factory reset via twrp. And after 2-3 days im getting this "custom Binaries blocked by frp lock". When I try to go in download mode the phone doesn't get detected.
Phone has become useless please help
bit late but. in order to fix this.
when you were on the stock from or the original rom. Before installing any other custom rom like this one, you need to enable OEM unlock first.
The thing is, probably didn't and flashed this custom rom right away. That's why you got that error.
To fix this you should reflash the original ROM.
let's see from the looks of it you have a binary 4.
Look for the firmware for that phone. Google it. Like J700H U4 Flash Firmware.
Example of the file downloaded should be like this: J700HXXU3BRC2_J700HOJV3BRC2_MID.zip
The 9th letter from the left should be the binary like J700HXXU"3"
Extract it and you will get a tar.md5
Then download Odin
Download Samsung Drivers and install it.
And flash the tar.md5 via odin
I shouldn't go deep about installing it. Just google how to flash the firmware via Odin. it's easy
After you go through all of these. your phone should be functional.
Now you can try to enable developer settings and enable OEM unlock
Then flash this beautiful custom ROM afterwards