In depth view of MAGLDR loader for HTC HD2

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For those of you who've read my previous contribution - Steps to switch HTC HD2 WM to AndroPlus Android OS. In this article, I will shed some light on the MAGLDR options in more detail. It's advisable that you read this article first, as there are actions that are not explained in detail here, that are explained in detail in the previous article.

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MAGLDR is a custom boot loader for the HTC HD2, developed by Cotulla, who is a XDA-Developers forum member.

As indicated by its name, MAGLDR loads the operating system. It does not replace your default boot loader already installed on your mobile, it simply executes after it. It allows you the possibility of maintaining your original boot loader, and if you wish to uninstall it later, you can still boot your mobile. If you'll remember from the previous article, MAGLDR enables you to install and boot the "ClockworkMod" (referred to as "Clockwork" or "CWM"). That option we used and described in previous article. Now, we will go through the other options available from MAGLDR, for you who need more details.

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Boot Your Phone Into MAGLDR

  1. 1
    Turn off your mobile (after installing the MAGLDR of course)
    .
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  2. 2
    To boot into MAGLDR, you need to turn ON your mobile, while you keep pressing the "Power Button" until you see the MAGLDR screen option.
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  3. 3
    As I have stated, those options are for more experienced users, or those of you who want to explore more and experience more in depth.
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Details of the options MAGLDR Offers

  1. 1
    Boot WPH
    .
    If you have WM7 OS (Windows Mobile 7) installed in your internal memory, use this option to boot into it.
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  2. 2
    Boot AD SD
    .
    If you have installed Android OS into your SD card, then you can use this option to boot into it.
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  3. 3
    USB MassStg
    .
    This will enable you to connect to your SD card directly via USB card. You need to be careful using it, since it is not fully tested, so it's very important that you copy vital data. Use a Universal Card Reader to copy information or data, you can't afford to use - like ROM files. This option can be used to copy photos or media files to your PC / Laptop before loading or entering the OS of your mobile.
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  4. 4
    USB Flasher
    .
    We have already used this option in the course of the previous article, when we needed to install the clockwork CWM. In general, with this option you can flash OS, like WM7 (Windows Mobile 7), or even NAND Android Builds. Of course you may refer to the previous article to see how we used it to flash the CWM Steps to switch HTC HD2 WM to AndroPlus Android OS.
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  5. 5
    USB TTY
    .
    This is a TTY terminal that is suited for users with more IT advanced background. Most users will not use or need this option.
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  6. 6
    AD Hard Reset
    .
    If you have installed a NAND Android on your internal memory, you can use this option to clear your data and cache partition. By doing that, you are reverting or restoring your device to the state of first installation phase. It is almost like performing a Hard Reset using keys combination.
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  7. 7
    AD Recovery
    .
    We have also used this option in the previous article in the paragraph "Preparing and Formatting your SD card". To do this, the CWM clockwork must already be installed, and it will boot you into the Clockwork Recovery.
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  8. 8
    Tetris
    .
    As it states, you can enjoy playing a Tetris game without even going into your installed OS. There is a hitch; if you start playing, you need to finish the game for the game to actually end!!!. If you're in a hurry to finish, just pile up the blocks until you reach the top, and the game will finish. Use HTC HD2 hard keys - Call, Home, Menu, and End Call - to maneuver the blocks.
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  9. 9
    Reset
    .
    Plain and self-explanatory option. It will restart your mobile.
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  10. 10
    Power Dow
    .
    This will shut down or power off your mobile.
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Services

There are many sub options for advanced users with a desire for advanced options.

  1. 1
    Boot Settings
    .
    These determine how your mobile will boot, and include:  
    1. Boot Source.  
      1. Android from SD. The Mobile will boot automatically into Android OS from your SD card (providing you have it installed on SD). If this is not installed on your SD, then an error will show and you will be directed back to the MAGLDR main menu.
      2. Android from NAND. The Mobile will boot automatically into Android OS from your internal memory. If NAND Android OS is not installed on your internal memory, then an error will show and you will be directed back to the MAGLDR main menu.
      3. WPH from NAND. The Mobile will boot into WM OS installed on your internal memory, If Windows Mobile NAND OS is not installed on your internal memory, then an error will show and you will be directed back to the MAGLDR main menu.
    2. Always Menu. This will always show the MAGLDR menu, regardless of what you have set as boot source.
    3. AD SD Dir. This option will allow you to choose between multiple versions of Android OS installed on your SD card. It will be used by MAGLRD when booting from SD using the option "Boot AD SD" mentioned above. A list of directories placed on your SD will be showed and you can select the one that has the Android SD installed OS to be used.
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  2. 2
    DMESG to SD
    .
    This is for advanced users and developers only.
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  3. 3
    Dump UD to SD
    .
    This is also for advanced users and developers only.
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  4. 4
    Use Last 24 NAND
    .
    This will enable you to use the last 24MB of internal memory (NAND), yet upgrading or even reinstalling the MAGLDR or Hard resetting will set it back to unused 24MB part of NAND. So use it at your own risk.
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  5. 5
    Clear SD MBR
    .
    It will clear your MBR (Master Boot Record), which will delete all the data on your SD card.
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Uninstall MAGLDR and revert back to HTC HD2 Stock ROM

Things You Will Need

  1. 1
    Stock ROM
    .
    You will need your official WM ROM. Download it from official HTC website. Look for the one that corresponds to your Country/Region.
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  2. 2
    UnZipping Application
    .
    This works like WinZip, WinRAR, 7Zip.
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  3. 3
    Your Mobile and USB Cable
    .
    Use the original cable that came with your device.
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Uninstalling Procedure

  1. 1
    Extract the Official ROM
    .
    Provided you have acquired above items, you can extract the Official ROM, to a folder on your Laptop.
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  2. 2
    Rename
    .
    A File with the name of "RUU....signed.nbh" will be there. Rename it to "leoimg.nbh"
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  3. 3
    Copy the renamed file to SD card
    .
    Make sure to copy it into the Root. Do not copy it into a folder.
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  4. 4
    Turn OFF your Mobile.
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  5. 5
    While pressing the "Volume Down", press "Power" to turn ON your mobile
    .
    Keep pressing the "Volume" until you boot into the 3 Colored "Bootloader" Screen.
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  6. 6
    When you see a line titled, "loading."
    .
    Release the "Volume Down". The ROM upgrade window will load.
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  7. 7
    Update
    .
    To start the update process, press the "Power" button.
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  8. 8
    After a successful upgrade
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    Take out your battery for 5-10 sec, then insert it back into your device, and Power ON your mobile.
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  9. 9
    Booting First Time
    .
    The process for booting for the first time will appear. Follow the instructions, as if you have already turned it ON when you first purchased your device.
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Partitioning Information

ClockWorkMod (CWM) is a custom Android recovery option. It is required in order to replace the operating system that your device has installed when it comes out of the box of the HTCHD2 device. In mobile computing lingo, the default OS is often referred to as "Stock ROM" and the act of bypassing a mobile device in order to replace the Stock ROM is called "Flashing."

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About ClockWorkMod

ClockWorkMod can only be installed on devices that natively supports an Android operating system. The HTC HD2 does not natively support Android OS, so in order for ClockWorkMod to be installed, the MAGLDR bootloader must be installed first.

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Installing ClockWorkMod

When installing ClockWorkMod, the entire partitioning setup of your phone's internal memory is built on the fly. This process allocates fixed sizes to the phone's system and data partitions. The size of these partitions, especially the system partitions, is critical to the installation of a new ROM to your device. It is imperative that you determine the required system partition size of your custom ROM and choose the appropriate version of ClockWorkMod to install. You'll have the choice of:

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  • 150 MB
  • 250 MB
  • 400 MB

In the case of AndroPlus ROM, it requires a system partition of 135 MB, so the 150 MB version of ClockWorkMod should be installed. Different modes of ROMs will require different partition sizes, so it is essential that you check on the custom ROM developer, to determine what size will work best for the ROM you are going to flash.

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  1. 1
    If you choose a smaller partition size than what is required, your device won't function properly
    .
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  2. 2
    If you choose a larger partition size than what is required, you will compromise the space intended for the data partition -- the part of your phone's internal memory that houses your user data (apps, contacts, messages, etc.)
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Check Current Partitions

ClockWorkMod also provides functionalities that allow you to check the current partitions on your HTC HD2 device and perform actions on them. You need to be extremely careful when navigating through these options though. Be sure that you know what you are doing before selecting any of these options, as these could potentially lead you to lose your phone's data or worse, even leave your phone in an unusable state!

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  1. 1
    In the ClockWorkMod main menu, click on the "Mounts and Storage" option
    .
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  2. 2
    You will be presented with options to mount, unmount, or format items, preceded with a "/" symbol
    .
    These items are the current partitions present in your device.
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Connect a Card Reader to HD2 HTC

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With you connect a card reader to your HD2 HTC, also called the HTC Leo 100, you have a way to not only read a memory card, but a way to transfer data and photos to your Laptop or PC.

  1. 1
    Reasons to connect a card reader to an HD2 HTC
    :
     
    1. Card readers are dependable. If you should ever have a damaged memory card, a card reader can still read the card. However, if you rely on the memory card itself when it is damaged in any smart device, it will lock up, and stop you from further access to the data.
    2. Without a card reader, a mobile device will deplete its battery more rapidly when data is transferred. Once your battery is dead, and you are sending data with only a memory card, your data is usually damaged.
    3. The processing speed of a memory card is much faster using a card reader than if you have the memory card in your device.
    4. A memory card reader is universal with all memory cards. You can use it with other devices, too.
    5. The memory card connecting cable, connectors, and the card connector are all very durable. This is important if you are exchanging information between your HD2 HTC and computer.
    6. A card reader can be read from your computer or HD2HTC without connecting directly to the device. Without the card reader, you must connect directly to your device via a Firewire cable or Universal Serial Bus (USB) cable. If you use the card reader, all data is stored with ease. It not only saves your battery, but saves the wear on your HD2 HTC.
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  2. 2
    A card reader for your HD2 HTC can be versatile
    .
    If you have other "smart" devices, such as a digital camera, computer Tablet/notebook, Laptop. Each of these will use a different memory card. With what is called a "multiple memory card reader", you can use it for all of these devices. Such a reader possesses multiple card slots to accommodate the cards from all of your devices, in various sizes.
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  3. 3
    Memory card readers for the HD2 HTC
    .
    Card readers are easy to connect to your HD2 HTC, and very reasonably priced. They are available online or at your local tech supply center.  
    1. The Cellet USB microSD/microSDHC Reader for the HTC HD2- It features a compact size for easy transporting. It is super easy to install and use. You can buy it for about $10.00.
    2. SanDisk MobileMate Micro Reader for the HTC HD2- With this "gem of a card reader", you can transfer all of your videos, photos and tunes between your mobile device and computer with a simple plug-in to the USB port of both devices. It is yours for only $12.00.
    3. The SanDisk 16GB microSDHC Card - If you have lots of music, videos, and photo albums, this is just what you need. It is a worthwhile investment for sharing your media, and costs only $20.00.
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Problem Solving HD2 HTC & The Memory Card Reader

If you are having a problems with your HD2HTC and the memory card reader:

  1. 1
    Try restarting the mobile device
    .
    Press and hold the "Power" button at the bottom of the HD2 HTC. Often this is a quick fix, and all you need.
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  2. 2
    A Hard Reset may be needed
    .
    If restarting your mobile device fails, a Hard Reset may work for you. You may have a software issue. Once you have performed a Hard Reset, your mobile device will return to all default settings. To do a Hard Reset using the "Settings" menu:  
    1. SAVE ALL YOUR DATA TO YOUR PC OR LAPTOP!!!
    2. Go to your Home screen, and tap the "Settings" tab.
    3. Tap "Menu > All Settings > System > Clear Storage".
    4. Enter 1234, and then confirm the Hard Reset by tapping "Yes".
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  3. 3
    Using buttons for a Hard Reset
    :
     
    1. If your HTC mobile device is totally dead, you must remove the battery.  
      1. Remove the back cover to get to the battery.
    2. If your mobile device is not dead, turn it off by pressing the "Power" button.  
      1. While your mobile device is turned off, hold down the "Volume Up" and "Volume Down" buttons.
      2. As you are pressing the volume buttons, press the "Power" button and then immediately let go of it.
      3. Press the "Volume Up" button when prompted to complete the reset. You can cancel the reset at this point by pressing any button other than "Volume Up".
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  4. 4
    Your battery may not be installed securely
    .
     
    1. Turn off your mobile device.
    2. Take out the battery and check for any visible damage.
    3. Reinstall the battery.
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  5. 5
    If your HTC mobile device is damp, it will affect performance
    .
     
    1. Place the memory card and all other parts on a dry surface.
    2. Alternatively, put your device in a bag of rice for 24 hours.
    3. Alternatively, dry your device with a hair blow dryer on the cool setting.
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  6. 6
    If the card reader suddenly fails to read your card properly
    :
     
    1. Turn off your HD2 HTC.
    2. Remove the back cover, and remove the battery.
    3. Make sure that the copper strips are clean and dry.
    4. Ensure that the SIM card is put back properly in place.
    5. If this fails, try using the memory card reader in another USB port.
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  7. 7
    Make sure your mobile device is charged
    .
    If a mobile device is low on power, operational problems may arise.
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As mentioned, there are many good reasons why you should use a memory card reader. Using a memory card reader is usually simple, and is typically very reliable. However, if you are having difficulties with it reading your memory card, try the above steps.

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HTC HD2 Not Booting After MAGLDR

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You will be able to boot using MAGLDR automatically by following the steps below. This procedure will allow you to acquire the SD card Android setup for your HTC HD2. Be aware that your original boot for the HTC HD2, and for all devices with Read-Only Memory (ROM), requires some time. If you are installing the Android operating system on an SD card, it may take as long as a half-hour. Give it about 15 minutes you plan to install it directly onto your HTC mobile device.

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  1. 1
    Make sure your device's battery is at or near 100%.
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  2. 2
    Read the instructions that came with your ROM before installing.
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  3. 3
    Extract the zip file for your new ROM
    .
    Follow the instructions to copy the contents to your SD card.
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  4. 4
    Configure the ROM per instructions.
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  5. 5
    Turn off your mobile device
    .
    Once it is powered off, press the "Power" button again, and hold it until the MAGDLR menu appears.
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  6. 6
    On the MAGDLR menu, go to "Services" > "Boot Settings" > "AD SD Dir" to bring up your SD card directory.
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  7. 7
    Find the directory on your SD card that has the Android "build" that you want (On your SD card you can actually store several Android ROMs by following the sequence above for each one)
    .
    From them, you can boot up with the one you prefer.  
    1. Find "Services" > "Boot Settings" > "Boot Source". On a menu will be "Android from SD" and "Android from NAND" as selections.
    2. Choose "Android from SD" for the SD build to boot up automatically upon turning on your HTC HD2.
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  8. 8
    If you have an Android build installed in the internal memory (NAND), and you want it to automatically boot when you turn on your HTC HD2, choose "Android from NAND"
     
    1. Go to Services > Boot Settings > Boot source.
    2. At the MAGLDR menu, you can boot into Android from the SD card if you select "Boot AD SD".
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  9. 9
    Additional tips
    .
     
    1. Be sure to follow the instructions that came with the ROM regarding the procedure after the first boot.
    2. It is recommended to reboot your HTC HD2 one time after the initial boot.
    3. As mentioned above, expect it to take about 15 minutes for the first boot if you are installing the Android build into the internal memory, and about 30 minutes for the first boot to process if you are installing the Android build onto the SD card.
    4. Even if you choose to boot Android from "Windows Phone 7" or "NAND" automatically at the Boot source menu, you will be able to boot into Android from your SD card at your discretion.
    5. You just have to first turn off your HTC HD2.
    6. Turn it on again by pressing and holding the "Power" button till the MAGDLR menu pops up.
    7. Choose the "BOOT AD SD" so that your mobile device will boot into Android automatically from your SD card.
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You will now be able to boot using MAGLDR automatically by following the steps above. For all of these reasons, you will benefit having this custom "boot loader" called MAGLDR:

  • Double-boot your HTC Windows Mobile 6.5 and Android.
  • Play Tetris directly from your mobile device's bootloader.
  • Install the Android OS into your HTC's internal memory (NAND).
  • Double boot with Android and Windows Phone 7.
  • Choose the installed operating system to boot into by default.
  • Install Windows Phone 7 into your HTC HD2 internal memory.
  • Install CLockworkMod Recovery on the internal memory.
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Tips Tricks & Warnings

  • This procedure should only be attempted for those with fair background of IT and Tech.
  • Read the instructions very carefully and make sure you understand them before experimenting.
  • If you aren't sure what you are doing, please do not proceed, or you might break your mobile.

Questions and Answers

Hard reset of WP7 with MAGLDR. WP7 on HTC HD2 always reboot?

Hello Daniel, I have new flashed a dual system Android/WP7.8, but then I have done something wrong and now my wp7-system reboot always after SIM-lock-pin. I want to do a Hard Reset but don't know how can I do it without of WP7. Is there any possibility in MAGLDR? Please excuse me for my English.

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I think the most effective resolution for you to attempts, is to merely re-install the WP7 OS with MAGLDR one.13. There area unit things that you should bear in mind when doing this, those area unit; 1st confirm the device is absolutely charged to avoid interruption throughout the method. You might like a radio that supports 576 RAM. Connect your phone employing a USB cable to the PC, and do a revive.

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Here is a VIDEO THAT MIGHT ASSIST YOU. to mend your device by putting in WP7 and MAGLDR one.13

Now to try to a Hard Reset on your HTC HD2.

  • SAVE ALL YOUR DATA TO YOUR PC OR LAPTOP!!!
  • Go to your Home screen, and tap the "Settings" tab.
  • Tap "Menu > All Settings > System > Clear Storage".
  • Enter 1234, and then confirm the Hard Reset by tapping "Yes".
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Hi Yassora, Thanks for helping.

After flashing with HD2 Toolkit or the DAF.exe I can't reboot. Only way to reboot is to take out the battery, but not by key.

Are there any keys that are not working properly on your device that won't allow you to do a reboot using the key functions? If not, the problem might be you've pressed the wrong key combinations. To do a reboot, first thing to do is turn off your device. While it is turned off, simply press the "Volume Up" & "Volume down" button followed by the "ON" button. You must at least press and hold the on/off button for about 2 -4 seconds and release, while still pressing the Volume Up" & "Volume down" buttons.

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Do I need software to connect computer to HTC HD2?

Do I need a software to connect computer to HTC HD2. Software for connecting your computer to the internal memory HTC HD2.

Your HD2 should connect to your computer and be recognized automatically using Microsoft's activesync, which you can find HERE. If that does not work, You can try HTC's PC sync software called HTC Sync Manager, which you can download and install HERE.

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How can I convert to Android to Windows 7.8 in HTC hd2 or dual boot? Please explain step in detail?

Please give me some easy steps - my "Volume Down" and "Power" button pressing is not letting the boot happen. What do I do to boot Windows 7.8?

First, you have to make sure you have the other OS installed on your device. If you don't have, it then there will be nothing to boot to. If you do have the OS installed properly and can't get it to boot, you may need to carefully follow the steps of the article from the beginning again, making sure you didn't miss anything.

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Can't install MAGLDR. What do you suggest?

Cannot install MAGLDR. Please help?

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Hi There, I just installed MAGLDR 1.13 but the first thing I see is a NRG energizer screen in stead of the MAGLDR screen, or do I have to wait longer?

HTC HD2 Windows 6.5, want to go to Android

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I'm stuck in USB flasher mode!

How can I quit the USB Flasher mode?

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I am stuck installing MAGLDR. It will not move to 100%. It does not start but only the bar which is there.

What do I do so the the bar will move to 100%

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How to transfer the win7.8 OS from internal memory to SD card to free up memory?

I have flashed Cotulla win 7.8 ROM into a HTC HD2 and cannot use anything as there is too little memory. I want to delete from phone and boot win7.8 from SD card.

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I have got Android ICS on my T-Mobile HD2. How do I go back to Windows phone?

How to revert to the original OS

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If you have problems with any of the steps in this article, please post in the comments section below.

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