From DD-WRT Wiki

[edit] Hardware Specifications

[edit] Installation

 **WARNING**:  DO NOT PERFORM A 30/30/30 VIA RESET BUTTON ON ANY QUALCOMM ATHEROS ROUTERS (ESPECIALLY TP-LINK), YOU WILL BRICK IT!!!
 **NOTE**:  SEE Where do I download firmware? for information on where to download firmware files.

[edit] Prerequisites:

 **NOTE**:  For V1 through V4, suggest using 33772 for initial flash. For V5, use 37837 for initial flash.

[edit] V1

 **NOTE**:  There are two different factory-to-ddwrt files:

• The factory-to-ddwrt-US.bin is for US market models;
• The factory-to-ddwrt.bin is for NON-US market models.

1. Download the applicable factory-to-ddwrt.bin file from the tplink_archer-c7-v1 folder.
2. Download the applicable tplink_archer-c7.bin file from the current release's tplink_archer-c7-v1 folder.

[edit] V2

 **NOTE**:  There are three different factory-to-ddwrt files:

• The factory-to-ddwrt-US.bin is for US market models;
• The factory-to-ddwrt-IL.bin is for Israel market models;
• The factory-to-ddwrt.bin is for all others.

 **NOTE**:  Recommend using 33772 or 42910 for initial DD-WRT flash, then upgrading to current release.
 **NOTE**:  Archer_C7_V2_131217 gives "Error code: -1" trying to load any DD-WRT firmware.
 **NOTE**:  Archer_C7_V2_150427 gives "Error code: 18005" trying to load DD-WRT builds prior to r28493.
 **NOTE**:  Archer_C7_V2_180114 gives "Error code: 18005" trying to load DD-WRT builds after r42910.

• For EU models, TFTP flash Archer_C7(EU)_V2_V3_141110 first.
• For US models, TFTP flash Archer_C7(US)_v2_150304 or Archer_C7(US)_V2_150427 first or use a recommended initial flash version as applicable.
• See Links 4, 25 and 26 under Notes below.

1. Download the applicable factory-to-ddwrt.bin file from the tplink_archer-c7-v2 folder.
2. Download the applicable tplink_archer-c7-v2.bin file from the current release's tplink_archer-c7-v2 folder.

[edit] V3

1. Download the factory-to-ddwrt.bin file from the tplink_archer-c7-v3 folder.
2. Download the tplink_archer-c7-v3.bin file from the current release's tplink_archer-c7-v3 folder.

[edit] V4

1. Download the factory-to-ddwrt.bin file from the tplink_archer-c7-v4 folder.
2. Download the tplink_archer-c7-v4.bin file from the current release's tplink_archer-c7-v4 folder.

[edit] V5

1. Download the factory-to-ddwrt.bin file from the tplink_archer-c7-v5 folder.
2. Download the tplink_archer-c7-v5.bin file from the current release's tplink_archer-c7-v5 folder.

[edit] Procedure

1. Connect your PC via Ethernet cable to one of the LAN ports (Yellow) on the back of your router.
2. Launch/open a web browser and enter http://tplinkwifi.net or http://192.168.0.1 in the address bar.
• A login page will display. Default login is admin/admin. It is recommended to reset your router to defaults.
3. Click on System Tools-Firmware Upgrade (or Firmware) / Advanced > System Tools > Firmware Upgrade.
• On New Logo devices, focus on the Manual Upgrade section.
4. Click on Browse/Choose File and select the previously downloaded factory-to-ddwrt.bin file and click Open.
5. Click Upgrade.

 **CAUTION**:  After you start the firmware update, do not try to go online, turn off the router, or do anything else to the router until it finishes restarting.

6. In your browser, go to http://192.168.1.1
• You should be greeted by the password change page of the DD-WRT webUI.
7. Set username (optional, default username is root) and password (enter password twice, these *must* match and are case-sensitive).
• You should be greeted by the System Info page of the DD-WRT webUI
8. Click on Setup to begin configuration to your needs.
• You will be required to enter username and password previously set.
9. Click Save on each page (unless otherwise noted in a specific tutorial).
10. When finished, Click on Services or Administration tab and click Reboot.

[edit] Upgrading (or Downgrading) DD-WRT

 **NOTE**:  See version specific prerequisite info above first. Use the file named tplink_archer-c7-XX.bin (where XX is the version number).
 **WARNING**:  Do not use this file to go from Stock to DD-WRT.
 **NOTE**:  Reset to defaults is recommended if you are upgrading from a very old build (> 6 months).
 **NOTE**:  Do not restore a backup from one version to another version of DD-WRT, as nvram variable names may have changed.

1. Connect your computer to your router with an Ethernet cable.
2. Enter http://192.168.1.1 (or whatever you set your router IP to) into a web browser.
3. Enter username and password as required.
4. Go to Administration -> Firmware Upgrade
• Leave Do Not Reset selected for After Flashing
5. Click on Browse and select the appropriate previously downloaded tplink_archer-c7.bin file specific to your router model version.
6. Click Open
7. Click Upgrade
• The firmware update starts and the router restarts. The firmware update process takes about five minutes.

 **CAUTION**:  After you start the firmware update, do not try to go online, turn off the router, or do anything else to the router until it finishes restarting.

8. If the webUI does not automatically go back to the Setup -> Basic Setup page, or does not stop at the progress bar page to allow you to click Continue after waiting at least five minutes (i.e. if you get a "Connection Reset" or other error page in your browser), enter http://192.168.1.1 (or whatever your router IP address is) manually or click and hold the "Back" button and select the appropriate history entry.

[edit] Revert to Factory Firmware

WIP

[edit] V1

TODO

[edit] V2

Download ArcherC7v2_webrevert.rar and flash via DD-WRT webUI.

[edit] V3

TODO

[edit] V4

Follow the steps in TP-Link AC1750 C7v4 How to revert back to stock

[edit] v5

Download ArcherC7(US)_V5_211022.zip and rename to ArcherC7v5_tp_recovery.bin

• For the V5.8, use Archer C7(US)_V5.0_220715.zip

[edit] Recovery Information

Most TP-Link routers have a built-in TFTP client looking for a specific file name served by a TFTP server on 192.168.0.66; older versions of u-boot on the v1 and v2 may look for the TFTP server at 192.168.1.66. See: TFTP Recovery de-bricking and Installation or restore with TFTP

[edit] AC Channel allocations

A graph of AC channel allocations. A discussion of AC frequencies and setup of them is here The 5Ghz AC radio will work at the default AUTO settings but this may NOT be optimal for your environment and you may not get the highest wifi speed on your clients. Information on this radio is here.

[edit] 5GHz Support on v1 (not supported)

DD-WRT does not support the 5ghz card on the archer c7 hardware version v1.1. For old versions of DD-WRT after installing DD-WRT you must turn off the router and remove the 5ghz card or the router will brick. The 5Ghz radio works fine in hardware version 2 of this router. It is possible to remove the 5Ghz card from an old broken laptop and install it in the hardware version 1 of this device.

[edit] Notes

1. TP-Link Archer C7 (ac1750) via Wayback Machine (incomplete original device thread)
2. Bricked Archer C7 v2.
3. TP Link Archer C7 V2 --- reverting DD-WRT to STOCK FIRMWARE
4. TP-Link Archer C7 V2 (AC1750) Error Code: 18005
5. TP-Link Archer C7 V 2.0 Israeli firmware.
6. TP-Link Archer c7 v3
7. Archer C7 V2.0 (Israeli FW) bricking recovery. Help need.
8. How to get dump of original FW?
9. Archer C7 V3?
10. Bricked TP-Link Archer C7 v2. HELP RECOVER PLEASE :(
11. TP Link Archer c7 v3.0 guide
12. Can't revert Archer C7
13. Questions About Installing DD-WRT on an Archer C7 v3
14. Archer C7 (ac1750) V4 (TW) revert to stock firmware?
15. TP-LINK Archer C7 V4 EU revert to stock
16. Restoring TP-Link Archer C7 V4 (US) back to stock firmware
17. Archer C7 no lights except power
18. Adding a Serial Port to an Archer C7 v3
19. Archer C7 v5 Wi-Fi Problems & Revert to stock help
20. Archer C7 v5 impossible to revert to stock firmware
21. TP-Link AC1750 C7v4 How to revert back to stock
22. Archer C7v3: need help on a few questions b4 FW install
23. Archer C7 v5 - which firmware to flash?
24. (SOLVED)Invalid file type when flashing tp-link archer c7 v5
25. Flashing TP-Link Archer C7 V2
26. TP-Link Archer C7 V2 (AC1750) Error Code: 18005 (part deux)
27. TP-Link Archer C5 AC1200 / TP-Link Archer C7 AC1750 / TP-Link TL-WDR7500
28. TP-Link Archer C7 AC1750
29. Resetting Archer C7 v5 AC1750 to Stock Firmware