Update 11-December-2023. Read the Disclaimer.
On this page I have collected my experience with the TwoTrees Sapphire Plus V1.1 3D printer. Bought in juli 2021 for 420 Euro. I found them now on the internet for 370 Euro. This printer has the Mks Robin nano V1.2 board with 5 TMC2225 drivers and has a dual Z-axis each with motor but coupled via a belt.
This page is not about how to assemble the Sapphire Plus. "Aurora Tech" and "Just Vlad" already have done that perfectly on Youtube. This page is about the problems I had and how I solved them.
The Sapphire Plus is not a 3D printer kit that requires a "one" hour of assembly and then prints perfectly ("out-of-the-box"). If you want that then better buy a Creality. Assuming you don't make any mistakes and this is not your first 3D printer an 4-8 hour build is do-able but don't be suprised if it takes up to 60 hours with all kinds of suprices. Just read this page. Careful and accurate assembly of each step is necessary. Then finally do some testing using the printer's menu (moving, homing, heating) to check that everything works.

Da0x8cmb6e0 Rev E Bios Bin ((hot)) May 2026

The DA0X8CMB6E0 REV E is a motherboard part number specifically used in the HP ProBook 430 G5, 440 G5, 450 G5, and 470 G5 series. These machines typically use 8th Generation Intel Core (Kaby Lake-R) processors and a 16MB (128Mbit) BIOS chip like the Winbond 25Q128JV.

da0x8cmb6e0 rev e bios bin refers to the binary firmware file specifically for the HP ProBook 450 G5

The DA0X8CMB6E0 Rev E BIOS Bin is used in various computer systems, including: da0x8cmb6e0 rev e bios bin

Title: BIOS Chip for HP ProBook 430/440/450/470 G5 | DA0X8CMB6E0 REV:E | Pre-Programmed

To avoid slow boot-up or fan issues after a motherboard swap, technicians use these bin files to "clean" the Intel Management Engine (ME) region. The DA0X8CMB6E0 REV E is a motherboard part

Identify the Chip: Locate the BIOS chip (often a Winbond chip like the 25Q128JVSQ) on the motherboard.

I'm dealing with the classic "black screen, fan at 100%" symptom. Looking for a verified .bin file for this board. If you have a link to a clean dump or the schematic/boardview for this Rev E, please drop a comment! 🛠️ Identify the Chip: Locate the BIOS chip (often

Backup: It is critical to back up the original (even if corrupt) BIOS before overwriting it to preserve unique system data like the Serial Number and Windows Key.

The BIOS (Basic Input/Output System) or UEFI firmware on this board manages hardware initialization and power flow between ICs. For technicians, working with this specific bin file often involves:

TwoTrees 3D Printer Sapphire Plus V1.1 CoreXY issues

Da0x8cmb6e0 Rev E Bios Bin ((hot)) May 2026