Preblem FRP reset A5 2016

Hello this is my log.

Plataforma: Samsung Android
Puerto seleccionado: COM38
Modelo seleccionado: SM-A5100
Connecting to server…
Connecting to server…Ok!
Checking resource files…
Resource files already downloaded.
Please put the phone into Download Mode and connect USB cable.
To put SM-A5100 into Download Mode, You have to perform the following steps:
1. Reconnect the battery.
2. Press and hold "Volume-" + "Home" + "Power ON" keys.
3. When phone turns on, press "Volume+" key.
Waiting for phone…
Firmware write started.
Escribiendo la sección Boot…
L a sección Boot ha sido escrita con éxito
Searching for a phone. Please wait…

And never found phone. Is installs Samsung mobile modem, and MTP device only, no ADB device is detected.

In Download Mode screen shows:

"FRP is ON, download is not allowed if non-FRP binary"

Please give me a hand.