Flashing pixels / Glitches when flashing

[Kundi]

Hi!
I got a problem with my non-Pro NeoSD.
The cart is working absolutely fine on my first AES, which is a US 3-4 10Volt.

Now I got a second console, also a 3-4 but japanese region with a 5Volt PSU.
This one is really giving me headaches...
With Unibios (tried 3.3 and 3.2) the NeoSD boots to menu and has instant graphical glitches.
With the original Bios it boots fine but in-game there are mostly flashing pixels around text elements. When I flash a game, mostly there are heavy glitches all across the screen looking similar to the videos I found in other threads.
I already tried another PSU but that sadly makes no difference.
The NeoSD is on firmware 1.06 R10, original games work absolutely fine with the problematic AES.

Any idea what I can try?

Br,
Kundi

[Kundi]

*bump*
Anyone?

Some people had success with a custom firmware. Where can I get that?

[Todd]

Email: support(at)Terraonion.com

Include details with serial number and order number

[Kundi]

E-Mail sent