[UBox R5 6600H] Severe Graphical Artifacting / Hardware Failure at Boot

MiniPC Ubox
1

Hello Chuwi Support and Community,

I am reporting a serious hardware issue with my recently purchased Chuwi UBox-P. S/N: SUbox0IZ1H251102050 Purchase Date: 12 nov 2025, Order ID: 3064156470551663 from AliEpress.

Specs:

  • Model: CHUWI UBox Mini PC

  • CPU/GPU: AMD Ryzen 5 6600H with Radeon 660M Graphics

  • RAM: 16GB DDR5

  • Storage: 512GB SSD

  • OS: Windows 11 Pro

Problem Description: The unit is experiencing severe graphical artifacts (checkerboard patterns and vertical blue bars). Crucially, these artifacts appear sometimes during the boot process (at the Chuwi logo/BIOS screen) before the OS loads, indicating a hardware-level fault rather than a driver issue.

As this appears to be a defective APU/VRAM, I would like to know the steps for a warranty repair or replacement.

Thank you

Matteo

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2

This is a user forum; no one from Chuwi monitors it. You should contact Chuwi support: service@chuwi.com

3

thank you. i will use this thread to keep users updated on how the support team will handle this matter.

4

Hello everyone,

I wanted to provide a quick update on my UBox R5 6600H (S/N: SUbox0IZ1H251102050).

After contacting official support, they confirmed that the unit needs to be inspected by their service center. I have just shipped the parcel to their European repair facility in Poland (Mszczonów).

Key details of the process so far:

  • Shipping Cost: According to Chuwi support, the cost of returning the defective item for repair is the responsibility of the customer. I paid €22.00 for international shipping from Italy to Poland.

  • Documentation: I included a detailed note inside the box explaining the hardware-level artifacts (blue bars at BIOS), and I have provided my return address for the replacement/repaired unit.

  • Next Steps: The support team mentioned that if the motherboard requires replacement, the unit might need to be sent to China for further handling.

I have emailed the tracking number to the support team as requested. I will continue to update this thread once I hear back regarding the diagnostic or when I receive the unit back.

Hopefully, this helps others who might be facing similar hardware failures with the UBox series.

5

I sent the unit to the provided repair address in Poland on January, 27.

On January 30th, the tracking information indicated the parcel was rejected by the service center. I immediately emailed Chuwi Support asking for an explanation. The only reply I received was an automated ‘Out of Office’ message for the weekend.

My last email, sent today (February 2nd), is a follow-up asking the Support team to please investigate the rejected parcel. I am still waiting for an official response and explanation from Chuwi regarding why my return was refused.

I must say that I’m not happy with the customer support.