Hi all, I’m having an issue with my GTR4 4900H, which I purchased in August 2022. Here’s what happened: After the initial setup and activation, the device was always used offline. I recently reconnected it to the internet, and Windows 11 began updating automatically. The system rebooted to complete the update. After that, the screen went completely blank — no BIOS screen, no logo, nothing (monitor reports ‘no signal’). USB ports still have power. Fans are spinning constantly at high speed. The power button light comes on, but pressing it does not shut the machine down — it seems totally unresponsive. There is no keyboard light. No heat from the CPU. Troubleshooting steps I’ve tried so far: Pressing the CMOS reset button for 30 seconds (with power supply unplugged) – no effect. Removed and cleaned the memory contacts as suggested in other posts, and tried using each RAM chip individually. Tried a different HDMI cable. Tried a different monitor. Used an alternate but matching power supply. Checked the CMOS battery voltage – it’s fine. Tried the suggestion to repeatedly press the Delete key on startup to enter BIOS – no response, screen remains blank. Tried with and without the SSD. No BIOS updates have ever been performed by myself on this unit. Has anyone experienced this before? Can I try installing the BIOS from a USB stick to recover it? Any help or guidance would be greatly appreciated. Thanks in advance!

GTR4 4900H – Blank Screen After Windows 11 Update

T8764

Hi all,

I’m having an issue with my GTR4 4900H, which I purchased in August 2022.

Here’s what happened:

After the initial setup and activation, the device was always used offline.
I recently reconnected it to the internet, and Windows 11 began updating automatically.
The system rebooted to complete the update.
After that, the screen went completely blank — no BIOS screen, no logo, nothing (monitor reports ‘no signal’).
USB ports still have power.
Fans are spinning constantly at high speed.
The power button light comes on, but pressing it does not shut the machine down — it seems totally unresponsive.
There is no keyboard light.
No heat from the CPU.

Troubleshooting steps I’ve tried so far:

Pressing the CMOS reset button for 30 seconds (with power supply unplugged) – no effect.
Removed and cleaned the memory contacts as suggested in other posts, and tried using each RAM chip individually.
Tried a different HDMI cable.
Tried a different monitor.
Used an alternate but matching power supply.
Checked the CMOS battery voltage – it’s fine.
Tried the suggestion to repeatedly press the Delete key on startup to enter BIOS – no response, screen remains blank.
Tried with and without the SSD.

No BIOS updates have ever been performed by myself on this unit.

Has anyone experienced this before?

Can I try installing the BIOS from a USB stick to recover it?
Any help or guidance would be greatly appreciated.

Thanks in advance!

T8764

@support1

support1

Hi there,

Extended CMOS Reset
Unplug the power cable, remove the CMOS battery for 10–15 minutes (not just pressing the reset button).

Hold the power button for 30 seconds to drain residual power.

Reconnect the CMOS battery and power, then attempt to boot.

Disconnect all peripherals (SSD, USB devices, etc.).

Use only one RAM stick in the primary slot.

Attempt to boot with the bare minimum configuration.

T8764

Hi @support1, thanks for your response.

As outlined in my original post, I’ve already tested with the bare minimum configuration — a single RAM stick (in the primary slot), with all SSDs and USB devices disconnected.

I also carried out the extended CMOS reset exactly as you described: power cable unplugged, CMOS battery removed, and power button held for 30 seconds. The battery was left out for over 15 minutes initially, and I also tested it again with the battery removed overnight — no change in behaviour.

The system remains completely unresponsive: no display, no BIOS, constant full-speed fan, power button light on and no CPU heat.

Could you confirm whether this model supports BIOS recovery via USB, or advise on the appropriate next steps?

Thanks

support1

T8764 Hi there,

Please take out the SSD, turn on the PC to see if you can go to the BIOS.

T8764

Hi @support1,

Thanks for your reply. Just to clarify, I’ve already removed the SSD and tested the system with and without it, as clearly stated in both my original post and follow-up. I also tested again today to confirm — the symptoms remain unchanged:

No display or BIOS
No logo
Fans spinning constantly at high speed
Power button light on but unresponsive
No heat from the CPU

Could you please confirm whether the GTR4 (Ryzen 9 4900H) supports BIOS recovery via USB? If so, kindly provide the required file and exact steps.

Your assistance would be much appreciated, but please do take care to read all the provided information before replying.

Thank you.

support1

T8764 Hi there, sorry if the PC cannot turn on and go to BIOS, it is not possible to flash BIOS via USB. You need to use the programming tools to do the flash. We suggest you send it back for repair . Please contact our support team at support-pc@bee-link.com