SAMSUNG Galaxy A5 2017 - How to Lock Bootloader

In this short clear video you will learn how to lock the bootloader on the SAMSUNG A520F Galaxy A5 (2017). I walk you through the exact steps you need on the phone: open Settings, make sure the device is connected to Wi‑Fi, enable Developer Options if they are hidden, and then turn off the OEM unlock setting to re-lock the bootloader. This method is quick, requires no PC software, and helps restore the device to a secure boot state.

How to lock bootloader on SAMSUNG A520F Galaxy A5 (2017)?
How to enable Developer Options on SAMSUNG A520F Galaxy A5 (2017)?
Where is OEM unlock on SAMSUNG A520F Galaxy A5 (2017)?

0:00 Start – What we will do
0:05 Open Settings and Wi‑Fi requirement
0:14 Enable Developer Options (About phone → Software information → Build number)
0:39 Turn off OEM unlock to lock the bootloader
0:47 Confirm bootloader locked
0:53 Wrap up and subscribe

#Samsung #GalaxyA5 #Bootloader #DeveloperOptions

Find out more:
https://www.hardreset.info/devices/samsung/samsung-a520f-galaxy-a5-2017/

Follow us on Instagram ► https://www.instagram.com/hardreset.info
Like us on Facebook ► https://www.facebook.com/hardresetinfo/
Tweet us on Twitter ► https://twitter.com/HardResetI
Support us on TikTok ► https://www.tiktok.com/@hardreset.info
Use Reset Guides for many popular Apps ► https://www.hardreset.info/apps/apps/

Видео SAMSUNG Galaxy A5 2017 - How to Lock Bootloader канала HardReset.Info