- Root your Android device, i.e. get root permissions for your android device.
- Flash Andriod recovery image on the ROM.
- Getting Right Android ROM for your device.
- Flash Android ROM on the device using the recovery tool at the startup.
- Rooting Android Device
Android is Linux based and hence has root account which is set as a super user. Rooting is a mechanism to get root access on your android device. There are 2 mechanisms of rooting an android device.
Easy Mechanism :
- Download android application for rooting the device from AndRoot link or Alternate AndRoot link. (The downloaded file should have ‘.apk’ extension)
- Plug in your android device with the computer and transfer this file to the sdcard of your phone.
- In your phone go to Android Market and install AndExplorer (or any good File Explorer).
- Open AndExplorer after installation and go to sdcard, click on the AndRoot application file that you transferred earlier. You will see a prompt to install the application AndRoot. Go through the steps and install AndRoot.
- Once installed open AndRoot application, Select the android version of your device and select the button that says anything about rooting the device.
- It will take some time and viola you are done with rooting your device.
Advance User Mechanism:
- Follow the steps mentioned in this article for Advance users Manual rooting for advance users.
- Flashing Android Recovery Image
Recovery Image is a 3rd party recovery tool that lets you load up a utility at the device startup i.e. before android loads. By using this tool you can create and restore the backups of your android device, Wipe out data of your device and most importantly Flash an Android ROM on the device (i.e. Upgrade Android OS). You can flash the recovery image by following these steps:
- Go to android market from your phone and install “ROM Manager” by CLOCKWORKMOD.
- Open the application and select the first option of “Flash ClockworkMod Recovery”.
- It will try to detect ur phone set and asks to confirm your phone model. confirm your phone model. It will then flash the Recovery Image on your device in around 10 - 15 secs.
- Now you are ready to boot your device in the Recovery Tool by starting your device by holding “power” & “Home” keys. But you obviously need to get the Android ROM image before booting into this revover tool. Other wise its point less in roaming around the recovery tool when you don’t have any Anroid ROM to flash.
- Getting Right Android ROM For Your Device
Probably one of the most important part of this whole process is to have an authentic/popular Android ROM for your device. For this purpose you are totally dependant on Internet Community. XDA Developers is a great place to search for the Android ROMs for your device. In my case, I needed Android’s Froyo (i.e. Android 2.2) ROM image for HTC hero. After searching Over the web this great link for HTC hero ROMS was found, out of which this (from ‘Froyo ROM’ option) one ROM with the highest ranking was picked.
Make sure you download the ‘.zip’ ROMs mentioned in the links in this post via a relaible download manager. Downloading the ‘.zip’ ROM via a browser could be risky because the download can be interrupted and you will be left with the broken ROM.
NOTE: If the link from where you downloaded the ROM also gives you the info of the MD5 hash of the ROM then to make sure that the downloaded ROM isn’t corrupted, Take MD5 hash of the ‘.zip’ ROM file that you downloaded and compare it with the MD5 hash value given on the download page. If it matches then you are good to go to the step 4 other wise try re-downloading the ROM with a reliable download manager.
- Flashing Android ROM / Upgrade Android OS
The Last and most important step is to Flash the Android ROM (downloaded in step 3) on your device. Follow these steps to Flash the new Android ROM on your device:
- Plug in ur android device with your computer and transfer the downloaded Android ROM on ur SD Card’s root i.e. right on the sdcard and NOT in any folder inside the sdcard.
- Rename the ROM file to update.zip
- Power off your device. Power it back On while holding both “power” & “home” keys.
- The device will now boot in the recovery tool. Once in the recovery tool first of all take the backup of the device by going into “backup and restore” -> “Backup”. This backup could be used to restore your device (via “backup and restore”->”Restore” option) if anything goes wrong in the process of upgrading the ROM.
- Now select “wipe data/factory reset”.
- Select “wipe cache partition”.
- Go to “advanced” and select “Wipe Dalvik Cache”.
- Now go back to the main recovery tool menu by pressing back button.
- Select “install zip from sdcard” , Now select “choose zip from sdcard”. You will now see a list of files on the sdcard, Select the “update.zip” on the sdcard that we transferred earlier.
- recovery tool might ask for u to confirm the action and then will flash the new ROM on your device. Once done select the “reboot system” from the main menu of the recovery tool.
- Hurrraaaaaaayyyyyyyyy !!!!!! your device will now boot in the new Android ROM.
Great References:
http://theunlockr.com/2010/09/27/how-to-load-a-custom-rom-on-the-htc-hero-2/
http://theunlockr.com/2010/09/27/how-to-root-the-htc-hero-androot-method/
http://theunlockr.com/category/roms-2/android-roms-2/htc-hero-roms/
http://theunlockr.com/2011/04/22/froyo-rom-3/
http://forum.xda-developers.com/showthread.php?t=767886
http://forum.xda-developers.com/wiki/HTC_Hero
http://www.pocketables.net/2011/06/how-to-manually-root-almost-any-android-device.html
http://www.pocketables.net/2011/06/what-is-root-and-why-do-i-want-it.html
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