The U-BOS2 PRO is a standalone BIOS/UEFI programmer designed specifically for Apple devices, covering a wide range of Macs from 2008 TO 2025 , including models equipped with T2, M1, M2, M3, and M4 chips. It allows you to read, write, replace, or repair SPI ROMs directly via a touchscreen interface without needing to connect to a computer.
Main features:
Color touchscreen for intuitive navigation
Powered by 5V USB-C, easy to use in the workshop
Contains a complete database of pre-loaded Apple ROMs
Includes 5 programming sockets, a universal card, and a USB key
Compatible with all types of ROM: 8-pin SPI, QFN, T2, M-series, ATC ROM, etc.
Advanced functions:
Repairing corrupted BIOSes (no display, stuck boot, etc.)
EFI Lock / PIN / Firmware Lock / MDM Lock Removal (up TO 2020)
Reading/writing T2, M1, M2, M3, M4 ROMs (for diagnostic purposes)
ME region modification to speed up boot after CPU/PCH replacement
Dedicated GPU Disabling Function on 15" MacBook Pro
Programming ATC ROMs to resolve HDMI or external display issues
🆚 Comparison between U-BOS2 and UBOS2 PRO
| Functionality | U-BOS2 | U-BOS2 PRO |
|---|---|---|
| Years of compatibility | 2008 – 2020 | 2008 – 2024 |
| Apple Silicon chip (M1/M2/M3) | Not supported or partially supported | Compatible up to and including M4 models |
| Integrated screen | No (requires a PC or a less intuitive procedure) | Yes, integrated color touchscreen |
| ROM database | Limited or external (USB key) | Integrated directly into the device |
| Sockets supplied | 1 to 2 depending on the pack | 5 sockets + 1 universal card + USB key |
| MDM/EFI Removal | Possible (2008–2020 models) | Possible (same) but with an improved interface |
| ATC ROM / HDMI Fix | Not supported | Yes (ATC ROM + HDMI support on M-series) |
| User interface | Basic | Modern and simplified interface |
| Updates / Maintenance | Less frequent | Newer device, more active tracking |
📦 In summary:
The UBOS2 is suitable for workshops dealing only with Intel models up TO 2020.
The U-BOS2 PRO is significantly more versatile , with extended compatibility until 2024 , better ergonomics and advanced features for Apple Silicon Macs .





