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At the moment I would like to reinstall Android on my device(custom hardware device). I got the image files after building. But when I enter fastboot devices nothing returns.
adb devices is working. It return my device. fastboot flashall -w is also not working. I returns <waiting for devices> and stays like that until I exit.
So the 70-android.rules.d file is right. I have also set ANDROID_PRODUCT_OUT. But someone knows why fastboot does not see my device, but adb does?
Restarting udev or adb does not work. Some people recommend that on the internet.
OS: Ubuntu 11.10
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The very first reason is a faulty USB cable or port. If either of these things is damaged, Fastboot will not work on your system. To access the Fastboot mode, you need to choose “Charge only” upon connecting your Android smartphone with a PC using a USB cable.
When your phone is stuck in Fastboot mode, remove the back cover of your device and pull the battery out. This will power down your device. Wait for about a minute and then put the battery back in your phone. Turn on your phone and it should now be in normal mode.
Boot your phone into Android, then connect it to your desktop computer with a USB cable. On your computer, launch the Command Prompt and change the directory to point to the platform-tools folder. Type adb devices and hit Enter. You should now see a list of attached devices, with a serial number.
Below is how to come out of fastboot mode on Android using the Power key. Step 1: Press and hold down the “Power” key for about 30 seconds. Step 2: Let go of a Power key and wait for a while. Step 3: In a while, your device will be rebooted automatically.
For Windows:
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Are you rebooting the device into the bootloader and entering fastboot USB on the bootloader menu?
Try
adb reboot bootloader then look for on screen instructions to enter fastboot mode.
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