Firmware Upgrade; Backup & Restore; Backup Configurations - TP-Link RE380D Manual

Click Save to save your settings.

Firmware Upgrade

On your computer, download the latest firmware file from our support
page at http://tp-link.com.
Launch a web browser and log into http://tplinkrepeater.net, then go to
Settings > System Tools > Firmware Upgrade page.
Make sure the firmware version you downloaded is same as the hardware
version displayed on this page, then click Browse to select the
downloaded file.
Click Upgrade. The upgrade takes a few minutes to complete and the
extender will automatically reboot itself when finished.
Please DO NOT power off the extender during the upgrade
process.
Backup & Restore
It is highly recommended to backup your current configurations, in case a
recovery is needed to restore the system to a previous state or from the factory
defaults.

Backup Configurations

Launch a web browser and log into http://tplinkrepeater.net, then go to
Settings > System Tools > Backup & Restore page.
Click Backup to save your current configurations as a config.bin file on
your computer. Make sure to save it in a safe location where you can
retrieve it when needed.
Manage the Extender