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When I power my device (htc one m8) on and press the volume down key I get into recovery.

Now which part of the booting process checks if this key is pressed and uses the correct partiton (boot or recovery).

Is this the bootloader?

If yes, is this the 'same' bootloader as formerly found in the aosp tree?

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1 Answer 1

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The initial input is read by the bootloader to see which partition to boot. Vol- will trigger bootloader, while no input will trigger ROM partition. The bootloader is initially installed by your OEM. No matter what version of Android you have, you still have the same bootloader until you either update your bootloader or install a custom bootloader. The OEM bootloaders are likely based off the AOSP tree, depending on your specific phone (I am not sure for the M8).

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  • Is the selection menu where I can choose between fastboot, recovery and so on already the recovery or is this still the bootloader
    – Uroc327
    Commented Dec 8, 2014 at 6:13
  • The bootloader has a selection screen when you boot while holding Vol-. It should look like this on your HTC One M8: i.sstatic.net/48pSP.png
    – LyricWulf
    Commented Dec 9, 2014 at 0:45
  • From the bootloader, you choose which boot partition to load, hence the name boot loader.
    – LyricWulf
    Commented Dec 9, 2014 at 0:46

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