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Flash OpenWrt on the A5-V11 Pocket Router
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Flash OpenWrt on the A5-V11 Pocket Router

Albert David
Author
Albert David
Electronics, IoT, and Embedded Systems

Step-by-step guide to replace the stock Qualcomm firmware on an A5-V11 pocket router (~$5) with OpenWrt, giving you a fully hackable Linux device.

What you need
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  • A5-V11 pocket router (Qualcomm variant)
  • FAT-formatted USB flash drive
  • PC with Ethernet port
  • Ethernet cable
  • 5 V USB power source

Step 1 — Prepare the USB drive
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Download and unzip a5-v11-openwrt.zip onto a FAT-formatted USB flash drive.

Warning

Important: Do not just copy the .zip file — extract it so the folder containing openwrt-factory.bin, the bootloader, and update scripts sits at the root of the drive.

Step 2 — Connect the hardware
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Wire up the A5-V11, USB drive, PC, and power as shown:

A5-V11 hardware setup: router, USB drive, Ethernet cable, and power
Hardware setup: A5-V11 router with USB flash drive, Ethernet to PC, and 5 V power.

Step 3 — Power on and wait
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Apply 5 V power. The RED LED stays on for a few seconds, then the BLUE LED starts blinking (takes about 1 minute from power-on). Your PC should receive an IP in the 192.168.100.x range from the router’s DHCP server.

Step 4 — Verify Qualcomm firmware
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Open the router’s web UI and confirm it shows the Qualcomm interface:

A5-V11 Qualcomm OEM web UI
Qualcomm OEM web interface — confirm your router shows this page before continuing.
A5-V11 Qualcomm firmware details
Qualcomm firmware detail page.
Warning

Stop here if your router’s web page looks different from the screenshots above. You may have a Chinese firmware variant — follow this other guide instead.

Step 5 — Telnet in and flash
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Open a telnet session to the router using PuTTY or a terminal:

Telnet connection to A5-V11
Telnet session to the A5-V11 router.

Run the firmware flash commands as shown:

Flash commands running on A5-V11
Running the OpenWrt flash commands via telnet.

Step 6 — Reboot into OpenWrt
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After reboot, wait about a minute. OpenWrt will boot and your PC will get an IP in the 192.168.1.x range. Open a browser and you should see the OpenWrt LuCI interface:

OpenWrt LuCI login page
OpenWrt LuCI login screen — use the defaultrootuser with no password.
OpenWrt dashboard after login
OpenWrt dashboard. From here you can flash your own custom OpenWrt variant via System → Backup/Flash Firmware.
Tip

Next step: You can now overwrite this base OpenWrt image with your own custom build via the System → Backup/Flash Firmware menu.

github.com/hackboxguy/downloads — a5-v11-openwrt.zip


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