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Questions tagged [fastboot]

fastboot is a tool that comes with the Android SDK. It can be used to manipulate the partitions of your Android device when booted into the bootloader. DO NOT USE this tag for Ember FastBoot related questions.

fastboot is a tool that comes with the Android SDK. When your Android device is booted into the bootloader and connected to a computer over a USB connection it can be used to manipulate the partitions of your Android device. It has various functions including

  • flashing images to different partitions
  • erasing the data on different partitions, and
  • completely reflashing your device from an update.zip file

It is a powerful tool that used incorrectly can damage your Android device or completely wipe all of the data from it.

131 questions
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Flashed bootloader, now adb/fastboot no longer see the device

I was restoring a nexus s to a factory image as I've done before on other nexus s phones. After flashing the bootloader, I can no longer connect to the phone with ADB. "Enable USB debugging" is checked in developer options, but USB debugging never…
cgould
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Piso S1 adb works but fastboot doesn't. Linux

lsusb of the device in developer mode (ADB connects fine). Bus 002 Device 008: ID 2207:0010 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface…
Manguicho
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'fastboot boot' command doesn't work?

I have compiled my kernel and I want to test it. I used fastboot boot zImage but this command booted my old kernel. Why? I have created and flashed boot.img with ramdisk from old kernel, but it doesn't boot. Is there any way to debug boot process…
micnyk
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Ember Fastboot monitor debug tool

I have a Fastboot application running on Docker and lately containers have been consuming a lot of CPU and RAM on the server. Is it possible to monitor what is causing this in Fastboot? Any plugins or services to monitor? Tool to monitor ember…
Charles
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lg g820n can't get into fastboot/bootloader

I have a LG G8(LM-G820N, android 12) on which I am trying to get it into the bootloader but am unable to do so, even though I have been able to do so previously. I tried volume up + power button just does a normal reboot I tried "adb reboot…
dumb name
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what is the difference between "fastboot erase data" and "fastboot erase userdata"?

emmm I'm just about to flash my android device and when I check some tutorials, I'm confused: What do fastboot erase data and fastboot erase userdata actually do? It is said that userdata means /data + /data/media, is it to say that fastboot erase…
suroot66
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SCRCPY: [server] ERROR: Could not invoke methodWARN: Device disconnected

I'm encountering with an error message when attempting to use scrcpy. I am trying to mirror the Android screen. Please refer the image Error: intel@intel-NUC12WSHi7:~$ scrcpy INFO: scrcpy 1.12.1…
Vijay Chatti
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After successful magisk flash, touch stopped working

I flashed magisk patched img with fastboot on my moto e7 plus, but as I reboot the touch stopped . These are the commands I used: fastboot flash boot_a "location to img" fastboot flash boot_b "location to img Then fastboot reboot. I also read this…
Grey rabbit
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Fastboot

I tried to unlock the Android bootloader, but it just says and doesn't go over. And the smartphone model is Galaxy J7 Top (Galaxy Wide 3). I tried these 3 methods. Attempt to install Google USB Driver Plug into USB 2.0…
wgpororo
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Fastboot error "battery capacity is very low"

I'm trying to flash gsi but when I tried the command fastboot erase system I'm getting fastboot error not enough battery capacity but my phone(SM-A715F) charged 100%. Please let me know how to solve it. I reflashed original rom and factory reset 2…
Charan Reigns
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Clearing all apps data

Can someone help me with an problem please? I have an A20e (SM-A202F) phone and I try to clear all apps data and cache with adb with this command: cmd package list packages | cut -d":" -f2 | while read package; do pm clear $package && echo $package;…
user20721249
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Enable USB debugging in Android via PC

I only have access to fastboot/recovery mode (due to software error) of my android device and i want to enable usb debugging through pc so that i can reinstall the Software. How can i do that? is there any way like using android studio?
Rohit Kumar
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Sony XQ-AU52/pdx201 Can't `fastboot -w flashall` - checking 'product' FAILED

Probably a noobish question, but despite following the official build guide [1] and later finding out it's broken [2] I still can't flashall: Code: (lunch output…
Dźwiedziu
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adb: failed to install split_config.en.apk: Error: must specify a APK size

split_config.en.apk this is not corrupted packages at all but still adb giving me this response. adb: failed to install split_config.en.apk: Error: must specify a APK size how can i install that package.
Priyanshu Jangid
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Ember Fastboot is not working with the post request

while Accessing website in browser , i am seeing the below error.. Api is working in the browser as well as in postman but Ember fastboot is not working ... Any help should be really helpful. FetchError: request to…
venki chowdary
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