Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
Next revisionBoth sides next revision
toh:tp-link:tl-wa701nd [2015/08/16 14:10] – [USB Mod V1] Nitrogentoh:tp-link:tl-wa701nd [2021/03/10 22:13] – [Standard Passive POE Voltage Hack] arrel124
Line 1: Line 1:
 +====== TP-Link TL-WA701ND ======
  
 +{{section>meta:infobox:432_warning#infobox_for_dataentries&noheader&nofooter&noeditbutton}}
 +
 +Similar to the TP-Link TL-WR741ND but with PoE and a smaller antenna.
 +
 +
 +===== Supported Versions =====
 +---- datatable ----
 +cols    : Brand, Model, Versions, Supported Current Rel, OEM device homepage URL_url, OWrt Forum Topic URL_url, Device Techdata_pageid
 +headers : Brand, Model, Version, Current Release, OEM Info, Forum Topic, Technical Data
 +align   : c,c,c,c,c,c,c
 +filter  : Model=TL-WA701ND
 +----
 +
 +* My v2.0 was the EU version which had firmware lock, ''error 18005'' is displayed when trying to flash. Unlocking is explained below.
 +
 +
 +===== Hardware Highlights =====
 +---- datatable ----
 +cols    : Model, Versions, CPU, CPU MHz, Flash MB_mbflashs, RAM MB_mbram, WLAN Hardware, WLAN 2.4GHz, WLAN 5.0GHz, Ethernet 100M ports_, Ethernet Gbit ports_, Modem, USB ports_
 +header  : Model, Version,SoC,CPU MHz,Flash MB,RAM MB,WLAN Hardware,WLAN2.4,WLAN5.0,100M ports,Gbit ports,Modem,USB
 +align   : c,c,c,c,c,c,c,c,c,c,c,c,c
 +filter  : Model=TL-WA701ND
 +----
 +
 +
 +===== Installation =====
 +---- datatable ----
 +cols    : Model, Versions, Supported Current Rel, Firmware OpenWrt Install URL_url, Firmware OpenWrt Upgrade URL_url, Firmware OEM Stock URL_url
 +headers : Model, Version, Current Release, Firmware OpenWrt Install, Firmware OpenWrt Upgrade, Firmware OEM Stock
 +align   : l,c,c
 +filter  : Model=TL-WA701ND
 +----
 +
 +-> [[docs:guide-user:installation:generic.flashing|Install OpenWrt (generic explanation)]]
 +
 +FIXME Please add the installation procedure here.
 +
 +==== Flash Layout ====
 +Stock firmware
 +
 +0x00000000-0x00020000 : "boot"\\
 +0x00020000-0x00120000 : "kernel"\\
 +0x00120000-0x003e0000 : "rootfs"\\
 +0x003e0000-0x003f0000 : "config"\\
 +0x003f0000-0x00400000 : "art"\\
 +
 +
 +==== Unlocking firmware 3.16.9 ====
 +Firmware 3.16.9 has a different check mechanism than other versions and doesn't allow anything to be flashed (''error 18005'').
 +
 +A firmware must have this string at address ''0x120'' in order to be flashed: ''00000000;45550000;''
 +
 +This can be added using a hex editor. Checksum must be recalculated using [[mktplinkfw]] tool in the image builder after editing. [[https://forum.openwrt.org/viewtopic.php?pid=363518#p363518|There's a thread in the forums about that]]
 +
 +
 +
 +===== Hardware =====
 +
 +==== Photos ====
 +//Main PCB v1//\\
 +{{media:tplink:tl-wa701:tl-wa701nd_pcb.jpg?400}}
 +
 +==== Serial port ====
 +The unpopulated pin header SJ1 provides a 3.3 V serial port. See photo for pinout.\\
 +Serial connection parameters: 115200, 8N1
 +
 +===== Hardware mods =====
 +==== USB Mod v1 ====
 +
 +{{media:tplink:tl-wa701:tl-wa701nd-v1_usb_mod_sm.jpg?400}}
 +
 +^ Ver   ^ CPU                  ^ RAM    ^ Flash   ^ Network   ^ USB   ^
 +|     | Atheros AR7240       | 32MB   | 4MiB    | 1         | Mod   |
 +|     | Atheros AR9331       | 32MB   | 4MiB    | 1         | No*   |
 +|  2.3  | Atheros AR9330 rev 1 | 32MB   | 4MiB    | 1         | No*   |
 +
 +  * In v1 USB can be added with a MOD.
 +  * In v2 USB is present but no pinouts are available on PCB to solder USB socket.
 +
 +For the v1 USB mod you need to solder wires to the following resistors: R100 (Pin 73) and R101 (Pin 74).
 +The side that is soldered is facing the LED'S. The side facing the RJ45 jack is ground.
 +I recommend using a thin gauge wire so as not to detach the resistors.
 +You can solder directly to the CPU but i recommend you solder directly to the back of the above resistors as this is easier. (Please remember to orientate your board correctly.)
 +A 5 Volt regulator is also needed to power the USB port.(You can add a filter capacitor.)
 +You will not need to add any additional resistors.
 +I do not recommend using the USB port with the PoE unless you upgrade the power supply.
 +The way the USB port has been powered will only work when the power supply is plugged directly into the access point.
 +
 +==== Standard Passive POE Voltage Hack ====
 +The TP-Link TL-WA701ND and other TP-Link AP devices do not support standard passive POE voltage (48V) but instead they supports an unusual 9V or 12V DC input. If you plug the AP in a standard passive POE injector at 48V this results in damaging the capacitors and ultimately shorting out the board. If this happens and you have a decent brick power supply, it limits the output current and you save the board, otherwise the board could be damaged irreversibly.
 +You can easily circumvent this limitation by replacing the electrolytic capacitors on the board with the appropriate ones rated at least 63V. Replacing them is pretty straightforward, because the solder mask is quite self explanatory and the capacitors have the capacitance value written on the side. In the board there`s plenty of room to place the caps:
 +
 +{{media:tplink:tplinkwa701nd-v2_original_capacitors_overview.jpg?400|Original Capacitors installed by the manufacturer}}
 +{{media:tplink:tplinkwa701nd-v2_modified_capacitors_overview.jpg?400|Modified Capacitors Overview}}
 +{{media:tplink:tplinkwa701nd-v2_modified_capacitors_detail.jpg?400|Modified Capacitors Detail}} 
 +===== Tags =====
 +[[meta:tags|How to add tags]]
 +{{tag>AR9330 AR9331 ath9k DetachableAntenna 32RAM 4Flash MIPS MIPS32}}
  • Last modified: 2024/02/12 08:58
  • by 127.0.0.1