Fastboot is a communication protocol used primarily with Android devices.[1] It is implemented in a command-line interface tool of the same name and as a mode of the bootloader of Android devices. It is included with the Android SDK package used primarily to modify the flash filesystem via a USB connection from a host computer. It requires that the device be started in Fastboot mode. If the mode is enabled, it will accept a specific set of commands,[2] sent through USB bulk transfers. Fastboot on some devices allows unlocking the bootloader, and subsequently, enables installing custom recovery image and custom ROM on the device. Fastboot does not require USB debugging to be enabled on the device.[3] To use fastboot, a specific combination of keys must be held during boot.[4]
On Samsung devices, (excluding the Nexus S and Galaxy Nexus devices), power, volume down and home has to be pressed for entering ODIN mode. This is a proprietary protocol, and tool, as an alternative to fastboot. The tool has a partial alternative.
The fastboot protocol has been implemented in the Android bootloader called ABOOT,[8] the Little Kernel fork of Qualcomm[9][non-primary source needed], TianoCore EDK II, [10][11][non-primary source needed] and Das U-Boot.[12][non-primary source needed]
I can see my GLASS id in adb and adb reboot-bootloader seems to work. I can not see my device id in fastboot however and fastboot oem unlock hangs on "waiting for device". Pressing the camera button does reboot the device.
My Solution-I had issues on Win 8 so I swapped over to my OS X install, unplugged all usb peripherals and then ran "./adb reboot bootloader", saw my GLASS in "./fastboot devices" and then ran "./fastboot oem unlock" twice to initiate.
This issue on OS X, -glass-api/issues/detail?id=243 is still not addressed (please star the issue while there), it still exists post XE8 regardless of how you start fastboot which as noted, times out and will reboot after inactivity of just a few seconds. Part of the problem is that the USB vendorId switches between Google and TI when switching between adb and fastboot (bootloader) modes.
I have two identical phones. On one of them I've managed to corrupt the system partition and it won't boot. I have fastboot, root (on the one that boots), but I don't have ClockworkMod --- my phone isn't supported. Instead I have the world's most unhelpful vendor recovery, which supports update.zip and nothing else.
I'm trying to copy the system partition from the working phone to the non-working one via fastboot. But I cannot successfully reflash the partition. I always get a failure, and the only message is 'flash write failure'. I've tried erasing it first.
Hello, I want to put a Sony Xperia 10 III Sailfish OS. However, I cannot put the Sony xperia 10 III into fastboot mode. No matter how many times I put the phone to the USB cable and press down the volume down button at the same time, the blue LED does not turn on and I cannot connect the phone to Fastboot. Who can help further?
After disabling fastboot, save switch configurations and then reboot for POST to run. POST verifies the hardware functionality of various modules during boot-up. Based on the criticality of the test, the selftest module decides whether to go ahead with the boot-up sequence of a particular subsystem or interface during a POST failure.
Sent magic packet using router tool and through an android function I use daily which works fine with fastboot off, and works fine with fast boot on on every other device I have (this is the only Intel NIC I've unfortunately been stuck with)
I was hesitated about removing a system file. I removed fastboot.sys but you should've warned me about that i need format then! I thought i broke my PC. And this sentence "It only uses memory that would otherwise be unused and the driver releases the memory as soon as either they are no longer helpful or the system is under memory pressure." is just a stuff. I saw this sentence one more time. Because i tested and fastboot.sys has no capability to release memory that it consumes. Eventually, i have no issue anymore and memory usage has reduced to 4 GB. Thanks.
I am sorry about the troubles, because when I checked the fastboot.sys file, it seems that it is a three-party driver file, not a system file. It's usually just for the startup, and normally we don't change it. If we want to delete it, we can try to delete it under that folder. If you cannot boot after deleting, you can go into safe mode to see if it can be started, or use the system ISO image to help boot. Anyway, I'm glad to hear that your problem has been solved. Thanks for your sharing and reminding.
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