For example, if you have an Archer C7 version 4, you would choose version 4.
Please find out the correct hardware version and read the important note before the upgrade.
If this is the case, you will need to reconfigure the router manually.
Step 1 Download the latest firmware version for your device.
This FAQ is suitable for TP-Link wireless router with cloud functions, such as Archer C8 V3, Archer C9 V3/V4 and so on. Currently most of the applicable models only support the online upgrade feature, and other cloud functions will be added in the future firmware. As for Archer C5400 V1, only the EU version supports the cloud services. Please pay attention to the Notes of the firmware you downloaded.
Some official firmware of TP-Link products can be replaced by the third party firmware such as DD-WRT.
TP-Link is not obligated to provide any maintenance or support for it, and does not guarantee the performance and stability of third party firmware.
You may use the respective software condition to following the GPL licence terms..
You receive the GPL source codes of the respective software used in TP-LINK products for direct download and further information, including a list of TP-LINK software that contain GPL software code under "The respective programs are distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.