Recurring Bluescreens every 2-4 days. No hardware or software fault detected

I have a LenovoYG7 14 R5 that I'm in dispute with the retailer over whether the device is faulty. I can't remember how long after I purchased it that it started but every 2-4 days the device bluescreens. The Blue screen itself is corrupted so I can't give the exact code. I was unaware that Windows created .dmp files so I've lost the majority of them. Between 21/05/2026 and 12/06/2026 I have saved 9 .dmp files, that time period includes between 30/06/2026 and 04/06/2026 where the device was with the retailer for inspection.

Between 21/05/2026 and 29/05/2026 they were exclusively for ntoskrnl.exe

After receiving the device back from the retailer on 05/05/2026, who did a full factory reset, it bluescreened within two hours for ntoskrnl.exe and amdkmdag.sys. There was a further bluescreen on 07/05/2026 for ntoskrnl.exe

After following their tech support's advice on 10/06/2026 to install the latest AMD drivers direct from the AMD website I had three bluescreens. One exclusively for ntoskrnl.exe and two for ntoskrnl.exe and amdkmdag.sys

On 12/06/2026 it bluescreened with ntoskrnl.exe and amdkmdag.

The laptop is using an AMD 6600U APU and following a factory reset I did the only additional software installed was FireFox and a few games via the Xbox app.

The retailer has done a factory reset, multiple stress tests and cannot replicate the bluescreens. They have done a physical teardown of the device and can't see any damage to the components. This form is not allowing me to add a zip or .dmp files.

Links to Zip files;

https://1drv.ms/u/c/af7963927c4b63a0/IQCow5lhnpjhR5ffbSZiWa0_AekvDe-zqn7CWrE0iiiGqJI?e=jyQYz5

https://1drv.ms/u/c/af7963927c4b63a0/IQCow5lhnpjhR5ffbSZiWa0_AekvDe-zqn7CWrE0iiiGqJI?e=y5EqN1

Edit;

This is the text from an event viewer log I'd saved

Fault bucket , type 0

Event Name: BlueScreen

Response: Not available

Cab Id: 0

Problem signature:

P1: 133

P2: 1

P3: 1e00

P4: fffff805815c53c8

P5: 0

P6: 10_0_26200

P7: 0_0

P8: 768_1

P9:

P10:

Attached files:

\?\C:\WINDOWS\Minidump\052126-14359-01.dmp

\?\C:\WINDOWS\SystemTemp\WER-14359-0.sysdata.xml

\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.f3496a0d-f60f-49e4-bc81-7c5de098fb4a.tmp.WERInternalMetadata.xml

\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.c22b7222-a0f8-4403-8c01-e9edd6166670.tmp.csv

\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.59331985-d914-4e55-83ba-27a96afbfe7f.tmp.txt

\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.1eb002aa-b054-4ffc-84ab-2a54cdd4cfe5.tmp.xml

These files may be available here:

\?\C:\ProgramData\Microsoft\Windows\WER\ReportQueue\Kernel_133_f78b4563e5585ae3cac1ff75b5ea1d1f2b5db1_00000000_1aac7914-e0b9-49f3-ab3c-9b244a18ee6e

Analysis symbol:

Rechecking for solution: 0

Report Id: b47957f8-8faa-4474-a7ae-22693ebd7604

Report Status: 2051

Hashed bucket:

Cab Guid: 0