The TL-WA860RE, TL-WA850RE and TL750RE are great because of their miniature size and wall-mounted design
OpenWrt firmware images of previous releases can be found under the ar71xx/generic tree:
→ Install OpenWrt (generic explanation)
Please add the installation procedure here.
This section describes actions that might damage your device or firmware. Proceed with care!
With the TL-WA850/750RE router, there is a catch: The stock firmware is obtained from the OEM: TL-WA750RE TL-WA850RE
Note: These days it is not necessary that the word boot is included in the name. If the original firmware doesn't revert to stock. Strip it and flash it again.
An example of an image file with the word “boot” in it is wa850rev1_en_3_14_8_up_boot(140310).bin.
Cut the first 0x20200 (that is 131,584 = 257*512) Bytes from original firmware:
dd if=orig.bin of=tplink.bin skip=257 bs=512
You should transfer the firmeware image to the /tmp folder and revert back to original firmware (if availlable you can flash the firmware via the webinterface as well):
Via the safer method using sysupgrade:
Or you use the mtd method:
mtd -r write /tmp/tplink.bin firmware
OEM TP-Link firmware for the TL-WA750/TL-WA850 with the boot part removed to revert to the original OEM firmware:
OEM TP-Link firmware for TL-WA850RE V2 original and stripped firmware:
→ port.serial general information about the serial port, serial port cable, etc.
How to connect to the Serial Port of this specific device:
Insert photo of PCB with markings for serial port
Replace EXAMPLE by real values.
Note: The case doesn't have any screws, but instead is ultrasonic welded together.
Please read the article flash.layout for a better understanding. It contains a couple of explanations. Then let's have a view at flash layout of this particular device:
ART = Atheros Radio Test - it contains RF calibration data for the wifi. If it is missing or corrupt, wireless won't come up anymore.
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