Stuck at rog logo during start up when usb c was plugged in

[Ck]

I recently bought rog zephyrus g14 GA402. Due to the limited port of G14, I decided to buy a external port that allow connection for lan cable, usb and hdmi port, connect through usb c on the laptop. Everything works fine when I first plugged in. But I start to realised everytime when I boot up my computer, the screen will stuck at the rog logo. It will only start to enter window when I unplugged the external port extension and replug again when I entered windows. 

May I know if this is normal, should I go for service center? 

[Anbby_ROG]

Hi @Ck ,

May I confirm with you the brand and model of the external port expansion you are connecting? 
Based on your description, it is possible that there may be a compatibility issue with the external port expansion. 
Could you please provide your current BIOS version? Have you tried testing with other HUBs to see if the issue occurs? Thank you.

[Ck]

Hi @Anbby_ROG , the hub is ugreen 10in1 hub. My bios is version 312. I have no issue with my mouse and keyboard plugged in usb 3.0 all the time even during boot. The only prob is the usb c when plugged to my hub

Everything works normal when I plugged in the hub when I am in already in Windows. Only during boot up the issue arise. 

[Anbby_ROG]

Hi @Ck ,

Due to the need for your personal information.
I have sent you a message, please check✉. Thank you

[amr1]

I experienced a really similar issue with the same model G14. I have a UGREEN USB-C ethernet adapter, when it was connected on startup, the laptop would hang on the ROG image until it was disconnected (I found this out by chance). I found that disabling the fast boot option in BIOS has resolved the issue.

[amr1]

So after working for a few restarts, the fix I tried above no longer works, I now hang on the ROG logo if the USB-C ethernet adapter is connected on boot, @Anbby_ROG @Ck were there any solutions to this issue?

[Anbby_ROG]

Hi @amr1 ,

Thank you for your update. 
The relevant department is currently analyzing and verifying the issue. If there are any further updates, I will inform you immediately. Thank you.

[Anbby_ROG]

Hi @Ck 、 @amr1 ,

Regarding this issue, we anticipate releasing a new BIOS by the end of August to address this problem. 
Please kindly pay attention to the Driver information on the ASUS official website. We hope to provide you with a better user experience.

[Anbby_ROG]

Hi @amr1 、@Ck ,

The new BIOS has been released (GA402N:314, GA402X:313). Please try updating the BIOS and test to see if there are any improvements. 

We look forward to your feedback. Thank you.

[amr1]

Thank you for your reply and thanks to those working on the new BIOS. I have installed BIOS 314 on my GA402NV and still get the same behaviour. When I start up with my USB-C ethernet adapter connected it hangs on the ROG logo until I disconnect and then it boots to Windows and I can reconnect the adapter without any issue. I have tried several restarts and shut downs and see no difference.