What Is MAGLDR? How to Install and Use It on the HTC HD2

MAGLDR is a community-made second-stage bootloader for the HTC HD2. It adds a boot menu and USB flashing mode; it does not install an operating system. Version 1.13 dates to 2011, so these instructions apply to legacy HD2 hardware and tools.

What MAGLDR can do

The original Dark Forces Team (DFT) release lists support for both LEO512 and LEO1024 HD2 models, requires a radio that supports 576 MB RAM, and adds Android Recovery support. Depending on the ROMs already installed, the menu can boot Windows Phone 7 from internal NAND, Android from NAND or a microSD card, or ClockworkMod Recovery. MAGLDR is a boot manager and flashing entry point, not an operating system.

Installing an OS to NAND can erase Windows Mobile 6.5 and stored data. MAGLDR has no Windows Mobile 6.5 boot option, so do not expect it to dual-boot stock Windows Mobile with Android. A known arrangement paired Windows Phone 7 on NAND with Android from a compatible SD build.

Before you install

• Confirm that the handset is an HTC HD2 (LEO512 or LEO1024), and identify its carrier variant before choosing any ROM or radio files.
• Back up contacts, messages, photos, and files off the phone and microSD card. Assume a NAND flash can erase the installed system and user data.
• Verify the prerequisites for your exact device. Older HD2 guides commonly require HardSPL 2.08; DFT's MAGLDR release notes specify a radio supporting 576 MB RAM. If either detail is unknown, stop and identify the handset before flashing.
• Charge the battery well above 50% and use a known-good microUSB cable. MAGLDR itself may not manage charging while it is on the menu.
• Use only the developer's original release thread for the legacy package. The software is discontinued, and a current maintained download or modern Windows driver path is not available to verify; avoid repackaged archives from unknown mirrors.

Install MAGLDR 1.13

1. Prepare a compatible PC. The release uses the Windows-based ROM Update Utility (RUU) and HTC USB drivers from the Windows Mobile era. Current Windows compatibility is not guaranteed; continue only if the PC reliably recognizes the HD2.
2. Open the HD2 bootloader. Power the phone off. Hold Volume Down, press Power, and keep holding Volume Down until the red, green, blue, and white bootloader screen appears.

3. Connect and verify USB. Plug the phone into the PC. Wait for any compatible driver setup to finish. The status at the bottom of the bootloader screen should change from “Serial” to “USB.” If it does not, stop and resolve the cable, port, or driver issue before opening the RUU.

4. Run the MAGLDR RUU. Extract the developer-provided archive and launch ROMUpdateUtility.exe. Read the warnings and preparation prompts; select Update only after the utility recognizes the phone. Keep the cable connected and wait for the phone to reboot and the RUU to finish.
5. Enter MAGLDR. After installation, power the HD2 off. Turn it on while holding Power until the MAGLDR menu appears. If the menu does not appear, do not flash another image at random; recheck the device variant and the original release instructions.

Navigate the menu and choose what to boot

Use Volume Up and Volume Down to highlight an option. The green Call/Send key selects it; End Call returns to the previous menu, and the Windows logo key returns to the main menu on the documented HD2 layout. The main entries are:

To set the automatic startup choice, open Services > BootSettings > Boot source and choose Android from SD, Android from NAND, or WPH from NAND. AlwaysMenu controls whether MAGLDR shows its menu at each startup instead of immediately booting the selected source.

Flash an OS or recovery separately

To flash a supported HD2 ROM, enter MAGLDR, select USB Flasher, connect to a compatible PC, then follow that ROM's DAF/RUU instructions. Android ZIPs require a compatible recovery such as ClockworkMod first; USB Flasher does not install them by itself. Check the ROM's partition requirements. For the historical release notes, see DFT MAGLDR 1.13 release thread.

Avoid destructive service options unless you intend the result: AD Hardreset resets Android user data, while ClearSD MBR erases the SD card's partition table. If USB is not detected or a flash fails, stop; do not retry with a different image. The model, radio, HSPL, ROM, and drivers must match.