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GL-AX1800 (Flint1) Firmware Options Research

Date: 2026-01-12
Device: GL-AX1800 (Flint 1)
Current Firmware: ApNos-3c11d1c4-devel, OpenWrt 23.05-SNAPSHOT
Architecture: ARMv7 rev 4 (v7l), IPQ6000 SoC

Executive Summary

The GL-AX1800 has three main firmware options available in 2025-2026:

GL.iNet Official Firmware (v4.6-4.8) - Custom OpenWrt with proprietary features
Vanilla OpenWrt (23.05.x stable, master snapshots) - Official community builds
Alternative Firmware (DD-WRT potential, NO Tomato support)

Key Finding: GL-AX1800 was officially merged into OpenWrt master in March 2025, now under the qualcommax/ipq60xx target (NOT ipq40xx as in older 23.05 releases).

Option 1: GL.iNet Official Firmware

Latest Versions

Version	Status	Release Date	Notes
4.8.x	Beta/Upcoming	Q3 2025 (planned)	Major VPN & UI improvements
4.7.0	Pulled/Problematic	March 2025	Wi-Fi instability reported
4.6.11	Stable (Current)	2024-2025	Most stable production version

Version 4.8.x Features (Upcoming)

Major Improvements:

Multiple VPN instances - Run multiple VPN clients simultaneously in policy mode
OpenVPN DCO (Data Plane Offload) - Hardware-accelerated OpenVPN on AX1800
Rebuilt cellular interface - Better support for LTE/5G modems
Redesigned toggle switch - Control Repeater, Wi-Fi, VPN, or LED
One-click log submission - Improved troubleshooting
IPv6 VPN optimization
Categorized log search

Status: Beta testing started April 2025, stable Q3 2025
AX1800 Support: ✅ Confirmed

Concerns:

Early 4.8.0 beta had VPN traffic leak issues (expected fix in 4.8.1)
Beta firmware may have stability issues

Version 4.7.0 (NOT RECOMMENDED)

Features:

New device setup wizard
Enhanced WireGuard + AzireVPN integration
Control D DNS support
Improved repeater privacy (random MAC)

Problems:

❌ Wi-Fi instability - Users reported connection drops
❌ Appears to have been pulled/withdrawn from download center
❌ Users downgraded to 4.6.8 for stability
❌ Missing package repositories (4.7.x)

Status: Avoid - Known issues, likely discontinued

Version 4.6.x (STABLE - RECOMMENDED)

Latest: 4.6.11

Features:

Stable repeater mode enhancements
Proven reliability
Full package repository support

Security Note:

CVE-2025-67091 (moderate severity) in 4.6.4 and 4.6.8
Vulnerability in custom opkg wrapper script
Fixed in later versions

Download: https://dl.gl-inet.com/?model=ax1800

Recommendation: Use 4.6.11 until 4.8.x is proven stable

Option 2: Vanilla OpenWrt

Target Architecture Change

IMPORTANT: The GL-AX1800 target changed between OpenWrt versions:

OpenWrt Version	Target	Architecture
21.02	`ipq40xx/generic`	ARMv7 (legacy support)
23.05	`ipq40xx/generic`	ARMv7 (transitional)
Master/Snapshots	`qualcommax/ipq60xx`	ARMv7 (proper IPQ6000 support)

Explanation: Earlier versions used the ipq40xx target as a workaround. Official IPQ6000 support was merged into OpenWrt master in March 2025 under the new qualcommax/ipq60xx target.

23.05.x Stable (What You're Running)

Latest: 23.05.5 (September 2024)

Specs:

GCC 12.3.0
Target: ipq40xx/generic
SDK Downloaded: ✅ /flint1-armv7/sdk/openwrt-23.05-sdk/

Download Paths:

Images: https://downloads.openwrt.org/releases/23.05.5/targets/ipq40xx/generic/
SDK: ✅ Already downloaded

Pros:

✅ Stable, tested release
✅ SDK/toolchain available
✅ Matches your current firmware base

Cons:

⚠️ Uses legacy ipq40xx target (not native IPQ6000)
⚠️ Older kernel/packages vs snapshots

Master Snapshots (Latest Development)

Target: qualcommax/ipq60xx (NEW as of March 2025)

Specs:

GCC: 14.3.0 (latest)
Kernel: Linux 6.x (newest)
Features: Bleeding-edge OpenWrt
SDK: Available with GCC 14.3.0

Download Paths:

Images: https://downloads.openwrt.org/snapshots/targets/qualcommax/ipq60xx/
SDK: https://downloads.openwrt.org/snapshots/targets/qualcommax/ipq60xx/openwrt-sdk-qualcommax-ipq60xx_gcc-14.3.0_musl.Linux-x86_64.tar.zst

Available Images:

openwrt-qualcommax-ipq60xx-glinet_gl-ax1800-squashfs-factory.bin
openwrt-qualcommax-ipq60xx-glinet_gl-ax1800-squashfs-sysupgrade.bin

Firmware Selector: https://firmware-selector.openwrt.org/
(Search: "GL-AX1800", select "SNAPSHOT")

Pros:

✅ Native IPQ6000 support (qualcommax/ipq60xx)
✅ GCC 14.3.0 - Best C++23 support
✅ Latest kernel, drivers, features
✅ Active development, frequent updates
✅ Newer ath11k Wi-Fi driver

Cons:

⚠️ No LuCI web interface by default (install via SSH)
⚠️ Development builds - less stable than releases
⚠️ ath11k open-source driver uses more RAM (~380MB free vs 512MB total)
⚠️ Doesn't include all Qualcomm proprietary SDK components
⚠️ Daily builds - version changes constantly

RAM Consideration:

GL.iNet firmware: Proprietary drivers, more free RAM
Vanilla OpenWrt: Open-source ath11k, ~130MB used by driver firmware

Installation Methods

For Factory/Stock:

openwrt-qualcommax-ipq60xx-glinet_gl-ax1800-squashfs-factory.bin

For OpenWrt→OpenWrt:

openwrt-qualcommax-ipq60xx-glinet_gl-ax1800-squashfs-sysupgrade.bin

Via U-Boot: Flash at router boot (advanced users)

Option 3: Alternative Firmware

DD-WRT

Status: Potentially Supported (unconfirmed)

Evidence:

DD-WRT database lists: glinet-gl-ax1800 build 61557 20250531
Build number suggests May 31, 2025 release
NOT verified - check DD-WRT forums for actual availability

Download (if available): https://dd-wrt.com/support/router-database/

Pros:

Different feature set than OpenWrt
May have better QoS/VPN features

Cons:

⚠️ Unverified support - database may be outdated
⚠️ DD-WRT warns their database can have inaccurate entries
⚠️ Less community support for this device
⚠️ Risk of bricking if not officially supported

Recommendation: Wait for confirmation from DD-WRT community before attempting

Tomato / Tomato64

Status: ❌ NO SUPPORT

Tomato64 lists support for ARM64 devices like GL-MT6000
GL-AX1800 is NOT listed
No indication of IPQ6000 support in Tomato ecosystem

Recommendation: Not an option for this device

Other Firmware Options

ImmortalWrt - OpenWrt fork with Chinese focus, likely has GL-AX1800 support
OpenWISP - Network management platform (not firmware replacement)
LEDE - Merged back into OpenWrt in 2018 (no longer separate)

Comparison Matrix

Feature	GL.iNet 4.6.11	GL.iNet 4.8 (Beta)	OpenWrt 23.05.5	OpenWrt Master	DD-WRT
Stability	⭐⭐⭐⭐⭐	⭐⭐⚠️ Beta	⭐⭐⭐⭐	⭐⭐⭐ Snapshots	❓ Unknown
Features	⭐⭐⭐⭐	⭐⭐⭐⭐⭐	⭐⭐⭐	⭐⭐⭐⭐⭐	❓
GCC Version	~8.x-12.x	~12.x	12.3.0	14.3.0	N/A
Target	Custom	Custom	`ipq40xx`	`qualcommax/ipq60xx`	Custom
RAM Usage	Better (proprietary)	Better	Higher (ath11k)	Higher (ath11k)	❓
Updates	Quarterly	TBD	Periodic	Daily	Rare
LuCI Web UI	Custom	Custom	✅ Included	❌ Install manually	✅
Support	GL.iNet + Community	GL.iNet + Community	Official OpenWrt	Official OpenWrt	DD-WRT forums

Recommendations

For Stability & Features

Use GL.iNet 4.6.11

Most stable current option
All GL.iNet features (VPN, AdGuard, etc.)
Good for production use

For Latest OpenWrt Features

Use OpenWrt Master Snapshots

Native qualcommax/ipq60xx support
GCC 14.3.0 for building packages
Latest kernel & drivers
BUT: Requires SSH comfort, less stable

For SDK Development

You Already Have:

✅ OpenWrt 23.05.5 SDK (GCC 12.3.0) - Downloaded
✅ musl.cc ARMv7 toolchain (GCC 11.2.1) - Downloaded

To Add:

# Download latest snapshot SDK
cd flint1-armv7/sdk
wget https://downloads.openwrt.org/snapshots/targets/qualcommax/ipq60xx/openwrt-sdk-qualcommax-ipq60xx_gcc-14.3.0_musl.Linux-x86_64.tar.zst

GCC 14.3.0 = Best C++23 support for btop compilation

When to Upgrade

Stick with Current (23.05-SNAPSHOT) If:

✅ Everything works
✅ You value stability
✅ You already have SDK for development

Upgrade to GL.iNet 4.6.11 If:

✅ Want GL.iNet features (VPN, AdGuard, GUI)
✅ Need stable production firmware
✅ Want long-term support

Upgrade to OpenWrt Master If:

✅ Want bleeding-edge features
✅ Comfortable with SSH/command line
✅ Don't mind installing LuCI manually
✅ Want native qualcommax/ipq60xx support

Wait for GL.iNet 4.8.x If:

✅ Want multiple VPN instances
✅ Need OpenVPN DCO performance
✅ Can wait for stable release (Q3 2025)

Summary

You have excellent options:

Stay Current - Your 23.05-SNAPSHOT works, SDK available
GL.iNet 4.6.11 - Most stable GL.iNet firmware
OpenWrt Snapshots - Latest qualcommax/ipq60xx with GCC 14.3.0
GL.iNet 4.8.x - Wait for stable release (Q3 2025)

For development: You're well-equipped with 23.05.5 SDK (GCC 12.3.0). Consider adding snapshot SDK (GCC 14.3.0) for maximum C++23 compatibility.

DD-WRT: Unverified - wait for community confirmation
Tomato: Not supported for this device

9.7 KiB Executable File Raw Permalink Blame History

GL-AX1800 (Flint1) Firmware Options Research

Executive Summary

Option 1: GL.iNet Official Firmware

Latest Versions

Version 4.8.x Features (Upcoming)

Version 4.7.0 (NOT RECOMMENDED)

Version 4.6.x (STABLE - RECOMMENDED)

Option 2: Vanilla OpenWrt

Target Architecture Change

23.05.x Stable (What You're Running)

Master Snapshots (Latest Development)

Installation Methods

Option 3: Alternative Firmware

DD-WRT

Tomato / Tomato64

Other Firmware Options

Comparison Matrix

Recommendations

For Stability & Features

For Latest OpenWrt Features

For SDK Development

When to Upgrade

Stick with Current (23.05-SNAPSHOT) If:

Upgrade to GL.iNet 4.6.11 If:

Upgrade to OpenWrt Master If:

Wait for GL.iNet 4.8.x If:

Summary

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