Help! Asus TUF AX5400U bricked

[osman]

My Asus TUF Gaming AX5400U router is not working. When the router is turned only 5GHz light is dimly lit while no other lights are on. I tried the reset button but that doesn't work either. Please help me restore the router. Thanks.

 

[bennor]

What troubleshooting steps have you tried?
Can you access the router's GUI?
When you connect a computer to the router does it indicate a connection? Does it pull an IP address, gateway IP address and DNS servers?
Are there any other indicator lights, where you plug in Ethernet cables, on the router that may indicate activity?
Have you tried a hard factory reset?

[Wireless Router] ASUS router Hard Factory Reset - Method 2 | Official Support | ASUS Global

Did anything happen recently like power surge or lightning strike or router damaged in some fashion (like being dropped)?
Could be the power adapter has gone bad, if you have a volt meter you could try and check the power output from the adapter to see what it indicates. If you have a similar spare power adapter handy that is the exact same voltage and watts you could try swapping adapters.

 

[osman]

What troubleshooting steps have you tried?
Can you access the router's GUI?
When you connect a computer to the router does it indicate a connection? Does it pull an IP address, gateway IP address and DNS servers?
Are there any other indicator lights, where you plug in Ethernet cables, on the router that may indicate activity?
Have you tried a hard factory reset?

[Wireless Router] ASUS router Hard Factory Reset - Method 2 | Official Support | ASUS Global

Did anything happen recently like power surge or lightning strike or router damaged in some fashion (like being dropped)?
Could be the power adapter has gone bad, if you have a volt meter you could try and check the power output from the adapter to see what it indicates. If you have a similar spare power adapter handy that is the exact same voltage and watts you could try swapping adapters.

Thanks for the detailed reply. I will reply to everything in your post.
I cannot access the GUI.
When I connect the router to my computer via all the ports it does not indicate a connection at all. My computer settings say that ethernet is not connected.
No other lights are there that light up. Just a dimly lit 5GHz light as soon as the router is turned on and the aura light at the top of the router.
I have tried to reset the router via the WPS button method and the reset botton to no avail.
There has been no power surge etc as I have a UPS and all other equipment at my house is working fine.
The power adapter seem to be working fine. I don't understand why the router is behaving this way. Are there any other methods to reset the router or troubleshoot it?

 

[Tech9]

If you can confirm the power supply is good and working - the router is dead. Most likely internal component failure.

 

[osman]

If you can confirm the power supply is good and working - the router is dead. Most likely internal component failure.

Is there a way to have it repaired?

 

[Tech9]

Probably, but it depends on the price. In my country such repair may cost as much as the router and no one does it. In your country the situation may be different. What usually burns inside is step-down voltage regulators, they are many in home routers. What you see as power supply voltage powers up multiple lower voltage circuits with own regulators in tiny surface mount chips. The chips are super cheap, but may not be available and the process of replacing needs special equipment. Additional complication is Asus routers don't have any repair schematics available and the person doing it has to have experience in alternative diagnostic methods.

 

[jksmurf]

The power adapter seem to be working fine.

Not sure how you validated this but if you do have access to another adapter on loan (check voltage and polarity) or one of those power supplies with variable voltages and adapter heads (they’re not great for long term use), you could be more confident it is 100% not the PSU?

 

[Tech9]

Looking at the design of this router I imagine the charred remains of Kylo Ren's escape pod crashed on a distant desert planet orbiting dual star system with bluish light piercing through thick yellow acid and dust mixture atmosphere... just let it go.