How to boot into Bootloader Mode on HD2

image via pocketnow.com

How To Boot into Bootloader Mode on HD2

1. Remove the battery cover on th back of your HD2.

2. With the battery still in place, hold the volume down button.

3. While holding down the volume down button, press the reset button using a pen or a pencil (it is red in the image above but it is yellow on my HD2) on the bottom left. Don't worry it won't reset your HD2.

4. The phone will boot into Bootloader Mode and the screen should display a "tri-color" screen. When you see this, go ahead and let go of the volume down button.

5. To get out of this screen, pull the battery out of the HD2 and reinsert it to have it reboot normally.

Disclaimer: These guides are intended to help others with their HD2s. If something should go wrong, no one is responsible except for you. It is up to you to verify all the information given. This is how I did it and I am sharing my experience in hopes that it'll make it easier for others. It worked for me. If you do not want to risk breaking your phone and do not want to mess around with your phone, I recommend you buy an iPhone.

How to know if HD2 is 1024MB.

image via Smartphone Deals

According to my knowledge, there are 2 types of HD2s.

• European HD2 w/512MB of memory.
• US T-Mobile HD2 w/1024MB.

For all the guides here at ZAP4 dealing with the HD2, you must have the US T-Mobile 1024MB version of the HD2.


TO CHECK WHICH HD2 YOU HAVE

According to this post at XDA, if you have a green call button and a red end button (like in the picture above) then you have the US T-Mobile 1024MB HD2. The European 512MB HD2, supposedly, has all white buttons.


Disclaimer: These guides are intended to help others with their HD2s. If something should go wrong, no one is responsible except for you. It is up to you to verify all the information given. This is how I did it and I am sharing my experience in hopes that it'll make it easier for others. It worked for me. If you do not want to risk breaking your phone and do not want to mess around with your phone, I recommend you buy an iPhone.

How to Flash HardSPL 2.08 Onto HD2

image via XDA Developers

How to Flash HardSPL 2.08 Onto HD2

This is a simplified guide from XDA's forum. The original guide is over here.

Requirements

• PC running WinXP
• T-Mobile 1024MB HD2 w/at least 50% battery charge
• ActiveSync
• HSPL4.exe

1. Download HSPL4.exe from the link above onto your PC.

2. Download and install ActiveSync from the link above onto your PC.

3. Boot into Bootloader Mode on your HD2.

4. Plug your HD2 into your PC, you should be alerted "Stoage Device Detected."

5. On your PC, double click HSPL4.exe.

6. After reading the text, click next.

7. Pick 2.08HSPL and click Next.

8. When it finishes, your HD2 will reboot.

9. Click ok to exit the HSPL4.exe program.

10. On the HD2, boot into Bootleader Mode to double check your SPL.

11. The second line should read "SPL-2.08 HSPL..." like in the image above.

12. Reboot the phone and you're done!



Disclaimer: These guides are intended to help others with their HD2s. If something should go wrong, no one is responsible except for you. It is up to you to verify all the information given. This is how I did it and I am sharing my experience in hopes that it'll make it easier for others. It worked for me. If you do not want to risk breaking your phone and do not want to mess around with your phone, I recommend you buy an iPhone.

How To Install Android 2.3 Gingerbread Onto HD2 via WinXP

THIS GUIDE IS STILL INCOMPLETE.

Requirements

1. A PC running WinXP.
2. A T-Mobile 1024MB HTC HD2

Guide

I. Flash HardSPL.
II. Flash Appropriate Radio
III. Flash MAGLDR
IV. Flash Compatable Android Rom.

Gingerbread on the G1

image via ShashwatPatel

Having problems with my HD2, I had to revert back to my old G1 temporarily. While I was using it though I thought I might as well upgrade it to Android 2.3 Gingerbread. Its amazing that this phone is going on 4 years and still works great.




Novice Guide for Updating Your G1 to Gingerbread

This guide will assume that you have some understanding of modifying your G1 and will install ezterry's Alpha Gingerbread Rom onto your G1. It is an alpha release so there may be some bugs, even though I haven't come across any. To me, its ready for daily use (because I am using it for daily use).


You'll need:

• rooted G1
• XDA Guide: here
• CWR 2.5.0.7 (ClockworkMod Recovery)
• ZAP4 Guide: here  
• ezGingerBread (G1) file pack (in the guide below)
• a mac or PC to download the file pack
• dedicated time
• its best to have a whole day where you can dedicate to this.

I. Download Files & Move to your G1's SD Card

1. Download the ezGingerbreak File Pack here onto your mac or PC.
2. Unzip the File Pack to expose a folder named ezGingerbread.
3. Mount your G1 to your mac or PC.
4. Drag the ezGingerbread folder to the root of your SD Card.
5. You can now trash the File Pack off your mac or PC.
6. Unmount and power off your G1.

II. Backup Your Phone from ClockworkMod Recovery

1. On your phone, boot into Recovery Mode.
2. Take a look at CWR (ClockworkMod Recovery)'s main screen. It has reboot system now as the 1st option and advanced as the last. You will be coming back here a few times.
3. Scroll down Backup and restore and select it (6th option down), using the G1's trackball .
4. At the next screen, select Backup (the 1st option).
5. CWR will now make a backup of your phone as it currently is. Should you mess up, you can boot back into Recovery and restore this backup.
6. Press Back on the G1 until are back at the main screen.

 

III. SuperWipe Your Phone

1. Select install zip from sdcard (5th option down) by using the trackball, once CWR loads.
2. Next, select choose zip from sdcard (2nd down).
3. Here you will see all the folders and files on your SD Card (folder on top and with a "/" at the end), select ezGingerbread/.
4. Next, select ohsaka-super-wipe.zip .
5. SuperWipe will wipe your phone. When it finishes, CWR will say Install from sdcard complete.
6. Press the Back button on the G1 until you back to CWR's main screen.
7. From CWR's main screen, select reboot system now.
8. Right when the screen turns black, press and hold the Home button to reboot back into recovery.

IV. Install Gingerbread

1. Again, select install zip from sdcard -> choose zip from sd card -> ezGingerbread/ .
2. This time though, select GINGERBREAD-DS-Alpha-20110208-1.zip .
3. You will see a confirm screen, scroll down to Yes - Install GINGERBREAD-DS...
4. CWR will now install ezterry's Gingerbread on your phone (it could take a couple of minutes).
5. Once you see Install from sdcard complete. at the bottom of the screen, press the Back button until you get back to CWR's main screen.

V. Install Google Applications & Reboot

1. Again, select install zip from sdcard -> choose zip from sd card -> ezGingerbread/ .
2. This time though, select gapps-mdpi-gb-20110205_S.zip .
3. CWR will now flash the gapps.
4. Once that is complete, press Back on the G1 to bring you back to the main screen of CWR.
5. Select reboot system now (the 1st option).
6. Congratulations, your G1 should reboot into Gingerbread now. Be patient though, the first boot can take up to 10 minutes.

Problems?

• did you remember SuperWipe your G1?
• maybe the  the files got corrupted during download and transfer. try downloading the ezGingerbread filepack again.
• if your G1 gets stuck at the T-Mobile G1 splash screen, try pulling out the battery and restarting it.
• if worse comes to worse, try researching ezterry's thread over at XDA.
• remember, because you made a back up using ClockworkRecovery Mod, you can boot into Recovery and restore your G1 back to the way it was before you started all this.

Disclaimer: These guides are intended to help others with their G1s. If something should go wrong, no one is responsible except for you. It is up to you to verify all the information given. This is how I did it and I am sharing my experience in hopes that it'll make it easier for others. It worked for me. If you do not want to risk breaking your phone and do not want to mess around with your phone, I recommend you buy an iPhone.

4 Simple Steps to Boot Into Recovery on G1

image via Jaxov

4 Simple Steps to Boot Into Recovery on G1



1. Turn off the G1 by pressing and holding the End button (the last button on the right in red)   


2. Press and hold the Home button.


3. Without releasing the Home button, turn on the G1 by pressing the End button (also the power button).


4. Don't release the Home button until the phone's Recovery boots up after the T-Mobile G1 Screen.

Install Guide for ClockworkMod Recovery On G1 (unthorough)

image via Jaxov

This guide will assume that you have only a basic understanding of how to modify your G1. If you encounter any unfamiliar terms, see the article glossary at the end of this article.



Requirements

• a rooted G1
•  http://forum.xda-developers.com/showthread.php?t=442480 
• the Market app

Steps

1. From the Market app, search and install the free app Rom Manager by ClockwordMod.
2. After the install, open Rom Manager.
1. If there is a disclaimer, read the information and press ok.
2. If there is a new features notice after that, read the information if you want and then press ok.
3. Under the first subsection named Recovery, hit Flash ClockworkMod Recovery.
4. Select HTC Dream (GSM).
1. If SuperUser Request will pop up, asking you to give permission to the application to modify your phone. Select, Allow.
5. The application should take you through the rest of the process, rebooting your G1 if necessary*.

Article Glossary

• rooted - rooting is to phones running the Android mobile platform what jail breaking is to the iPhone. it unlocks the phone from the phone maker and the cell phone company, so that you can install unofficial updates, software and even do recoding.
• Recovery - Recovery is a software of sorts, that starts before the actual Android operating system. It gives directions to to Android as how to start up.
• HTC Dream (GSM) - HTC Dream is another name for the G1. GSM is the kind of network the phone is able to operate on.

*Since my phone already had ClockworkMod Recovery on my G1, it didn't take me through the entire process again. It should be pretty self explanatory from this point on but if I come across the information (maybe someone leave it in a comment?), I will edit this article to be more thorough.