Tplink Mr3420 V5 Firmware Fixed -

TP-Link TL-MR3420 V5

Reviewers and users generally view the firmware as a reliable, straightforward platform for basic home networking , though it has specific limitations regarding hardware flexibility and advanced features. Official Firmware Overview

• SoC (System on Chip): Qualcomm Atheros QCA9531 (often confused with v2's AR9341, but v5 uses the newer QCA series).
• Flash Memory: 16MB SPI Flash (Winbond/W25Q128).
• RAM: 64MB.
• Wireless: QCA9531 integrated 2.4GHz.

• Some firmware versions (e.g., older than 2022) have a memory leak after ~10 days uptime.
• 4G failover works, but switch time is slow (~30–60 sec).
• No bridge mode on stock firmware.

Q: How to increase OpenWrt storage space?

A: Use a USB flash drive with extroot. The USB port is not just for 4G modems. tplink mr3420 v5 firmware