TP-Link TL-WR902AC (AC750) v1

TP-Link TL-WR902AC v1 is a pocket-size, dual-band (AC750), successor of TL-MR3020 (both devices use very similar enclosure, in same size). New device is based on Qualcomm QCA9531 v2 + QCA9887.

Supported Versions

BrandModelVersionCurrent ReleaseOEM InfoForum TopicTechnical Data
TP-LinkTL-WR902ACv121.02.0http://www.tp-link.com/en/products/details/TL-WR902AC.htmlView/Edit data

Hardware Highlights

ModelVersionSoCCPU MHzFlash MBRAM MBWLAN HardwareWLAN2.4WLAN5.0100M portsGbit portsModemUSB
TL-WR902ACv1Qualcomm Atheros QCA9531650864Qualcomm Atheros QCA9531, Qualcomm Atheros QCA9887b/g/na/n/ac1--1x 2.0, 1x µUSB (power)

Installation

ModelVersionCurrent ReleaseFirmware OpenWrt InstallFirmware OpenWrt UpgradeFirmware OEM Stock
TL-WR902ACv121.02.0http://downloads.openwrt.org/releases/21.02.0/targets/ath79/generic/openwrt-21.02.0-ath79-generic-tplink_tl-wr902ac-v1-squashfs-factory.binhttp://downloads.openwrt.org/releases/21.02.0/targets/ath79/generic/openwrt-21.02.0-ath79-generic-tplink_tl-wr902ac-v1-squashfs-sysupgrade.binhttp://www.tp-link.com/en/download/TL-WR902AC.html

Use “factory” image under vendor GUI (rename it to update.bin first).

Upgrade Warning

:!: There is a bug affecting all stable release 'sysupgrade' images for versions 19.07.0 - 19.07.3 that causes a boot-loop failure. Once in this state, tftp recovery is necessary to restore normal functionality.

To avoid this issue, the standard sysupgrade images are not recommended for upgrading to the aforementioned OpenWrt versions. Instead, use the tftp recovery process directly (using the 'factory' image).

See https://forum.openwrt.org/t/tl-wr902ac-v1-failed-sysupgrades-for-all-19-07-stable-releases/ for more details.

Recovery

This device contains tftp recovery mode inside U-Boot. You can use it to flash LEDE (use “factory” image) or vendor firmware.

  1. Configure PC with static IP 192.168.0.66/24, gateway 192.168.0.1 and an TFTP server to listen on that interface.
  2. Rename openwrt-ar71xx-generic-tl-wr902ac-v1-squashfs-factory.bin to wr902acv1_un_tp_recovery.bin and place it in tftp server dir.
  3. Connect PC with LAN port, press the reset button, power up the router and keep button pressed until WPS LED lights up.
  4. Router will download file from server, write it to flash and reboot.
  5. If the TFTP server shows no activity from the router, an Ethernet Switch may help, particularly if you're using Windows. Connect both the computer and the router to the switch (rather the directly to each other) and retry.

Serial

Root access over serial line in vendor firmware: root/sohoadmin.

Hardware

Info

Device type Travel Router
Architecture MIPS 24Kc
System-on-Chip 1 Qualcomm Atheros QCA9531
Flash-Chip Winbond W25Q64FVSIG (up to 104MHz) docs
Flash size 64M-bit (8 MiB)
Flash communication Dual/Quad SPI and QPI
Wireless No1 Qualcomm Atheros QCA9531
Wireless No2 Qualcomm Atheros QCA9887
USB 1x USB 2.0 Typ A
Power input 5V DC (micro USB in, power only)

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  • Last modified: 2020/06/01 18:24
  • by psherman