Replicant

h1. Bootloader interfaces

|_. Device |_. Bootloader | cmdline from boot.img | cmdline from bootloader environment | Compatible with upstream Linux | Flashing protocols | Image formats | filesystems |

| N/A | upstream u-boot | ? | Yes | Yes | * DFU

                                          * Fastboot

                                          * Thor[1]

                                          * Other? | * Android Boot.img files

                                                     * U-boot uImages

                                                     * RAW / zImage

                                                     * Other | Yes, various |

| N/A | upstream Barebox | ? | Yes | Yes | * DFU

                                           * FAstboot

                                           * Other? |  * Android Boot.img files ? 

                                                       * U-boot uImages

                                                       * RAW / zImage

                                                       * Other | Yes, various |

| Galaxy S (GT-I9000) | [[GTI9000Bootloader]] | | | ? | * Thor[1] | * RAW / zImage | No |

| Galaxy SII (GT-I9100) | [[GTI9100Bootloader]] | | | [[BootloadersIncompatibleWithLinux#Devices-with-the-Exynos-4412-2|Probably not]] | * Thor[1] | * RAW / zImage |No |

| Galaxy SII (GT-I9100G_CHN_CHN) | [[GTI9100GBootloader]] | | | ? | * Very unreliable[2] Thor[1] | ? |No |

| Galaxy Nexus (GT-I9250) | [[I9250Bootloader]] | used | ignored | ? | * Reliable[3] Thor[1]

                                                                       * Fastboot | * boot.img |No |

| Galaxy SIII (GT-I9300)

  Galaxy SIII 4G (GT-I9305)

  Galaxy Note II (GT-N7100)

  Galaxy Note II 4G (GT-N7105) | [[MidasBootloader]] | ignored | used | [[BootloadersIncompatibleWithLinux#Devices-with-the-Exynos-4412|No]] | * Somewhat reliable[4] Thor | * boot.img | No |

| Galaxy Note (GT-N7000) | [[GTIN7000Bootloader]] | | | ? | * Thor[1] | * RAW / zImage |No |

fn1. Thor is the protocol used by Heimdall, Odin, "u-boot":https://gitlab.denx.de/u-boot/u-boot/-/raw/master/drivers/usb/gadget/f_thor.c and several nonfree bootloaders. u-boot has a free software 

fn2. It didn't work on GNUtoo desktop computer at all, while it worked fine on his laptop. With the stock Android 2.6.3 bootloader you could also end up stuck on the PC screen without a computer where heimdall works fine.

fn3. Under IO (disk or SSD) load, a computer can easily flash SYSTEM or even DATA partitions with heimdall.

fn4. Under IO (disk or SSD) load, a computer typically fails at flashing SYSTEM or big DATA partitions with heimdall. Boot and recovery partitions are typically fine though.

h2. See also

* [[UART]]: How to get the serial console. Very useful to interact with the bootloader and see boot logs.

* [[IsorecRecoveryIssue]]: An issue affecting the bootloaders of the Galaxy SII (GT-I9100), Galaxy Note (GT-N7000), Galaxy S II (GT-I9100G)