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+====== TP-Link TL-WR842ND v2.1 ======
+How to reset (recover) the factory firmware on a TP-Link TL-WR842ND v2.1.
+  - Get the firmware and "shorten it"
+  - Set a TFTP server on your machine
+  - Put the device on failsafe mode and connect to computer static IP: ''192.168.0.66''
+All info is taken from [[https://openwrt.org/toh/tp-link/tl-wr842nd|this page on OpenWRT]] and corrected to work with my particular device and setup.
+==== 1. Firmware ====
+  * Download latest firmware from here: https://www.tp-link.com/us/support/download/tl-wr842nd/#Firmware
+  * Since it's a "boot" version, you need to "shorten" it (and rename it)
+<code=bash>
+dd if=wr842ndv2_en_3_16_9_up_boot(150514).bin of=wr842nv2_tp_recovery.bin skip=257 bs=512
+</code>
+==== 2. TFTP server ====
+On Arch:
+<code=bash>
+pacman -Syu tftp-hpa
+</code>
+Then move the ''wr842nv2_tp_recovery.bin'' you just created and put it in ''/srv/tftp''.
+Start the TFTP server:
+<code=bash>
+systemctl start tftpd.socket
+systemctl start tftpd.service
+</code>
+==== Failsafe ====
+  * Correct a good RJ45 cable from LAN on the device to Ethernet plug on computer configured as static IP: ''192.168.0.66''
+  * Put device in failsafe mode:
+    - Unplug power chord
+    - Press and hold reset button
+    - Power up the device and keep reset button pressed
+    - Wait till the //lock// LED is on
+    - Release reset button
+If all goes well, the device should pick up quickly the new firmware and reboot.
+--- //[[juego@requiem4tv.com|Julien Deswaef]] 2021/04/17 20:46//