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0

From your first quoted block, I assume your phone is booted up normally (adb devices lists it as "device"). Fastboot cannot find it there. Try adb reboot fastboot, then check again when your device has booted up into fastboot mode. See also: How to Boot Android Devices in various modes (Fastboot/Recovery/Download) fastboot intro (CyanogenMod Wiki) ...


0

If your screen is blank I don't think is in fastboot. Which device do you have? Make sure you have the proper drivers intalled.


1

Sounds like you didn't install the proper usb drivers. Easiest way I can recommend: Boot a linux live system, install fastboot and adb and execute the commands as root.


0

The command locks your bootloader. What the consequences are really depends on your device. Most devices enable signature-verification for the boot partition (kernel) which prevents you from booting any kernels not signed by device manufacturer (unless you exploit some security breaches like 2nd boot). They also disallow you to flash any partition via ...


2

Finally I found the way: Turned it off and then connect it to computer, adb found it as recovery then i ran adb reboot recovery and then it reboots to recovery. I found that volume up and down keys are semi broken and for this reason it could not to load recovery mode.


0

To enter fastboot mode hold vol+ vol- AND power for about 5 seconds; then check with fastboot devices this assumes you've already installed the adb drivers from hi suite or some universal set. once you're here you can flash a custom recovery or extract the factory recovery from the firmware zip. ...


0

The Qualcomm download mode can only be access from one of these driver .these driver can only be known when the coolpad phone test mode is on dial #@20110606# on dialer and put test mode on and restart your handset. . . but the frimware dead phone cannot be place on download mode that the problem . . . can some one tell me how to put download mode for a ...


3

There is no fastboot mode on Samsung. You must use the ODIN mode, which is an alternative to fastboot. On Linux there is a client application called Heimdall which talks to phones via Odin mode. So the answer to your question is ODIN or Heimdall. ODIN is the proprietary Samsung PC application, Heimdall is multiplatform open source alternative. ...


2

From my experience with Samsung devices this is not a bug but rather a feature. The "download" AKA "ODIN" mode on Samsung devices is a proprietary alternative to bootloader/fastboot mode and I don't remember being able to boot to this mode in other than the hardware way.


-1

Replace your /etc/udev/rules.d/51-android.rules file with the data given below and then restart the adb server and try SUBSYSTEM=="usb", ATTRS{idVendor}=="0bb4", MODE="0666" SUBSYSTEM=="usb", ATTRS{idVendor}=="0e79", MODE="0666" SUBSYSTEM=="usb", ATTRS{idVendor}=="0502", MODE="0666" SUBSYSTEM=="usb", ATTRS{idVendor}=="0b05", MODE="0666" SUBSYSTEM=="usb", ...



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