Develop Bugs

Trying to unlock the bootloader

I get through all the steps, adb setup recognizes my device is connected. When i try to unlock the bootloader <fastboot oem unlock> command line locks up at <waiting for device>.
can someone advise?
Verizon if that matters

What happens when you type in "fastboot devices"

Nothing happens. Tried it both before and after typing in adb reboot bootloader

You sure your pc is detecting the phone when it is in fastboot mode? To me it seems like your computer isn't detecting the phone or the drivers didn't get installed properly.

<deleted>
answered my own question

I had the same issue. Assuming you're using Windows, you need to find where the latest Samsung drivers for the GN were copied to when you installed them (you have installed them, right?) The next time you plug in your phone, it will probably ask you to setup a new device. Tell it you will install the drivers from a location you choose, navigate to the folder where the drivers are, let it install them, restart if it asks, and then try the process over.
FWIW, I used the directions and links from this tutorial and eventually got it working. They include alternate drivers here in case the one from samsung.com doesn't work.

im having the SAME PROBLEM AND HAVE TRIED TWO DIFFERENT COMPUTERS.TRING ADB METHOD

What's the ADB method? Why don't you just just hold the volume up, volume down and power to get into fastboot mode? When you plug it in, windows should see a new device that needs drivers. You need to make sure the drivers are installed before fastboot will work.

i am in fastboot "little android with chest opened". and i do have the driver installed but in fastboot windows thinks its a different device

robitron929 said:
i am in fastboot "little android with chest opened". and i do have the driver installed but in fastboot windows thinks its a different device
Click to expand...
Click to collapse
Is it saying that it couldn't install the drivers for Android 1.0 or something like that? What step are you at? Which tutorial are you using?
Read the driver installation part of this tutorial.
http://forum.xda-developers.com/showthread.php?t=1392310

i got it. it was this
TO GET DRIVER WORKING IN BOOTLOADER YOU MIGHT HAVE TO DO THIS, THIS TOOK ME FOREVER TO FIND!!!!!!!!!!!
I TAKE NO CREDIT!
READ CAREFULLY
THANKS TO KELLEX FROM DROIDLIFE
Tips:
-We know that many of you are running into a “waiting for device” issue when apply the fastboot oem unlock command. This is a driver issue and one that a reader has a suggestion for:
1. Open device manager on your PC.
2. Right click on Android 1.0 with the yellow ! mark on it.
3. Choose update driver.
4. Choose browse my computer.
5. Choose Let me pick from a list.
6. Scroll down and find the Samsung driver with newest date. Should be the driver you downloaded above. (Possibly dated 11/25/2011 ).
7. It will give you a warning about installing the driver, just click yes.

fastboot mode not working

hi everyone, i'm trying to install CM9 on my LT15i, i've tried using the CM wiki instructions and both the following guides...
androidauthority.com/xperia-arc-lt15i-root-android-4-0-ics-80265/
and
androidforums.com/rezound-all-things-root/506466-scottys-noob-friendly-root-guide-start-finish.html
the phone is already fully unlocked and has CM 7.2.0 anzu installed. i've tried simply using the clockwork recovery mod bootloader to wipe the phone and install CM 9.0.0, but on reboot the phone gets past the boot logo then just shows a black screen, so i assumed i needed to flash an appropriate ROM for CM9; this is where my problem begins.
every forum i've read about this process says i must enable usb debugging (done) and "disable fastboot" under settings>power, i do not have a "power" option in my settings and cannot find anything related to fastboot on the phone; although i'm not sure this is the problem. when android is running normally and i attempt to list devices with adb.exe on windows, it successfully returns the phone's serial number. when i shut the phone down, hold the menu button and plug in the usb cable, fastboot mode appears to work correctly as the LED comes on blue and "android adb device" appears in the windows device manager (i've tried installing the arc usb/adb drivers from various sources, they all seem to work correctly). but when i attempt to list devices after restarting in fastboot mode, adb.exe says it cannot find any device. fastboot.exe has not communicated with the device whatsoever, but i assumed i might need to get the adb.exe usb daemon/server running correctly first for this to work.
i did this process once already when i installed CM7, it was successful the first time and everything went smoothly. from what i recall i just did exactly as described above and fastboot.exe was able to find the device no problem. but that was a number of months ago, hopefully i'm just missing some obvious step.
cheers

WookieInHeat said:
every forum i've read about this process says i must enable usb debugging (done) and "disable fastboot" under settings>power, i do not have a "power" option in my settings and cannot find anything related to fastboot on the phone;
Click to expand...
Click to collapse
There is no such thing. And USB debugging is only required if you want to root stock ROM, every other action can be done without it.
WookieInHeat said:
although i'm not sure this is the problem. when android is running normally and i attempt to list devices with adb.exe on windows, it successfully returns the phone's serial number. when i shut the phone down, hold the menu button and plug in the usb cable, fastboot mode appears to work correctly as the LED comes on blue and "android adb device" appears in the windows device manager (i've tried installing the arc usb/adb drivers from various sources, they all seem to work correctly). but when i attempt to list devices after restarting in fastboot mode, adb.exe says it cannot find any device. fastboot.exe has not communicated with the device whatsoever, but i assumed i might need to get the adb.exe usb daemon/server running correctly first for this to work.
i did this process once already when i installed CM7, it was successful the first time and everything went smoothly. from what i recall i just did exactly as described above and fastboot.exe was able to find the device no problem. but that was a number of months ago, hopefully i'm just missing some obvious step.
cheers
Click to expand...
Click to collapse
Drivers, drivers, drivers.
If your phone is in fastboot mode, make sure drivers are installed. Proper drivers.
You do not need ADB server for installing a kernel.
Just open up Command Prompt and install the kernel with command
Code:
fastboot flash boot boot.img
.
Assuming boot.img is in the same folder as fastboot.exe.

Someguyfromhell said:
Drivers, drivers, drivers.
If your phone is in fastboot mode, make sure drivers are installed. Proper drivers.
Click to expand...
Click to collapse
thanks for the reply someguyfromhell. i've tried every "android adb interface" driver under the sun for the S1 fast boot device that appears in the windows device manager when i put the phone in fastboot. when i try to send any command with fastboot.exe it just hangs at "waiting for device", i've fiddled with this stuff every which way and just cannot get fastboot.exe to see the phone. i've tried switching up the usb ports on this computer, but haven't had the opportunity to try a second computer. you've let me know i'm going in the right direction at least, if i have the same results on a second machine i'll pursue the issue further.
thanks again
wookie

WookieInHeat said:
thanks for the reply someguyfromhell. i've tried every "android adb interface" driver under the sun for the S1 fast boot device that appears in the windows device manager when i put the phone in fastboot. when i try to send any command with fastboot.exe it just hangs at "waiting for device", i've fiddled with this stuff every which way and just cannot get fastboot.exe to see the phone. i've tried switching up the usb ports on this computer, but haven't had the opportunity to try a second computer. you've let me know i'm going in the right direction at least, if i have the same results on a second machine i'll pursue the issue further.
thanks again
wookie
Click to expand...
Click to collapse
You need to unlock bootloader, if you want to install CM ROM. Arc S can only have bootloader unlocked via official method, there you can also download the correct driver which you need.
http://unlockbootloader.sonymobile.com/

Someguyfromhell said:
You need to unlock bootloader, if you want to install CM ROM. Arc S can only have bootloader unlocked via official method, there you can also download the correct driver which you need.
the bootloader is already unlocked, as i said, the phone has CM7 on it currently.
Click to expand...
Click to collapse

[Q] ADB not recognizing device

I just bought a new computer yesterday, after installing the lightweight adb/fastboot program to my dell inspiron windows 8.1 laptop. I realized when I try to see the devices connected to adb by the command : adb devices, the only that pops up is list of devices attached, but show nothing. Here's the guide I followed http://forum.xda-developers.com/showthread.php?t=2778239
I'm guessing it has something to do with the drivers.....any help appreciated......
Here's the link I used to installed minimal adb and fastboot http://forum.xda-developers.com/showthread.php?t=2317790

Try uninstalling HTC Sync and any HTC drivers, then try to re-install, and see if that helps.
If no, uninstall any HTC software and drivers. Connect phone, go to Device Manager, and see if the device shows up. If so, select the option to manually select drivers (ignore any prompts to automatically install HTC Sync, etc.) and pick the Generic Android MTP drivers.
See if that works, although Win 8.1 has been known to be more problematic connecting to this device than previous Win builds.

Well I finally got it to work..I never installed the HTC sync software. I found a good link of compatible drivers for my 8.1. I didn't realize the phone had to be in bootloader mode to use fastboot commands though. That's a new thing forbme. If I remember correctly, I could use fastboot commands while the android was in its GUI/ROM format...

I've already switched cid yo gpe cod, but I'm probably going yo switch to dev edition

jxcorex28 said:
Well I finally got it to work..I never installed the HTC sync software. I found a good link of compatible drivers for my 8.1. I didn't realize the phone had to be in bootloader mode to use fastboot commands though. That's a new thing forbme. If I remember correctly, I could use fastboot commands while the android was in its GUI/ROM format...
Click to expand...
Click to collapse
Fastboot commands only work in fastboot mode. Its always been this way.
adb commands work in the OS or recovery, but not in bootloader or fastboot.

For some reason I was thinking the opposite...god, I'm retarded. I went ahead,and downloaded the entire SDK anyhow. Everything's up to speed

No Fastboot Drivers

Hello, peoples. I recently got a Sony Smartwatch 3, and updated it to the latest software (5.1.1).
I figured, "Hey, since I'm probably gonna do a ton of stuff on this Android thingy that requires an unlocked bootloader, I should unlock my bootloader!"
Although my ADB works fine, once I type in "adb reboot bootloader", wait for it to get into fastboot, and type "fastboot drivers", it shows that no devices are connected. I am using the ADB and fastboot provided by Google's Android SDK tools. In device manager (I am using Windows 10, by the way), it shows my watch in "Unknown Devices", titled "tetra" with a question mark and an exclamation mark. Clearly, this is not supposed to happen. I have tried manually installing the drivers, but it states that the drivers do not support my device. So, in conclusion, can anyone help me?
Wow, I think I accidentally wrote a paragraph. Whoops. I'll try not to let it happen again.

Same here (but I have Windows 8.1)

Depending on mode (adb/fastboot) your PC sees different USB-IDs.
Try: http://developer.sonymobile.com/downloads/drivers/fastboot-driver/

ranf said:
Depending on mode (adb/fastboot) your PC sees different USB-IDs.
Try: http://developer.sonymobile.com/downloads/drivers/fastboot-driver/
Click to expand...
Click to collapse
Okay, so, after trying to use this, it says that the hash check failed. Although, I was able to select the Google Inc. ADB driver anyway? I don't know how, but it's fixed. Thank you!

No fastboot!

Hi there,
I'm trying to install TWRP. But I can't do any fastboot command. ADB works. Device isn't recognized in system and with "fastboot devices" nothing shows up. :/
I've tryed many drivers but nothing works.
I'm using Win 10 x64. Does anyone have a suitable way to get it working?
Thanks!
Mambobuzzz

Mambobuzzz said:
Hi there,
I'm trying to install TWRP. But I can't do any fastboot command. ADB works. Device isn't recognized in system and with "fastboot devices" nothing shows up. :/
I've tryed many drivers but nothing works.
I'm using Win 10 x64. Does anyone have a suitable way to get it working?
Thanks!
Mambobuzzz
Click to expand...
Click to collapse
This is a problem related to Windows 10 that uses the wrong driver.
Somewhere I have found a guide to manually choose the correct one, but at the moment I don't remember where... googling you will find instructions

Mambobuzzz said:
Hi there,
I'm trying to install TWRP. But I can't do any fastboot command. ADB works. Device isn't recognized in system and with "fastboot devices" nothing shows up. :/
I've tryed many drivers but nothing works.
I'm using Win 10 x64. Does anyone have a suitable way to get it working?
Thanks!
Mambobuzzz
Click to expand...
Click to collapse
This is not the Q&A section. Please post your questions there, according to the forum rules. Can a moderator please move this? Thanks.

Monfro said:
This is a problem related to Windows 10 that uses the wrong driver.
Somewhere I have found a guide to manually choose the correct one, but at the moment I don't remember where... googling you will find instructions
Click to expand...
Click to collapse
I've googled it. Tried many. Event tried to boot Windows without driver signature. Didn't work. :/
michie said:
This is not the Q&A section. Please post your questions there, according to the forum rules. Can a moderator please move this? Thanks.
Click to expand...
Click to collapse
Oh sorry.

Does someone have an idea?

This might come a year too late, but in case someone else runs into the same problem (like myself), you can solve it by installing the latest (signed) ADB drivers with this Tool, then rebooting the tablet to fastboot mode and run the tool again. This still doesn't install the correct fastboot drivers, but it should now be listed as "ADB Interface" -> "Unknown Device" in the device manager, and if you right click and choose "Update driver" -> "Browse my computer for driver software", you should see a driver called "Fastboot interface (Google USB ID)", that installs and works correctly for the Pixel C.

@Mambobuzzz
One option you have and it's been updated this month too, is you could try installing and using tiny adb & fastboot from here: https://forum.xda-developers.com/t/tool-windows-tiny-adb-fastboot-august-2021.3944288/
I can't stand Windows for a few reasons! Make a live USB and try a Linux distro! You will never have this problem again and I guarantee you won't miss Windows.
Edit added:
Reasons why this is happening:
Bad connection somewhere.. The USB connection you are plugging in to on your PC could be messed up, the USB cord could be messed up, or where your type c plugs in to your device is messed up.... Oooorrrrr it's driver issue. And knowing Windows I betcha it's a driver issue. When you plug your tablet in are you enabling USB debugging and developer options and changing the "default USB configuration" from "Charging" to "File tansfer ?" And when you do those things are you watching the table REALLY CLOSELY for the little box that pops up for 5 seconds that you MUST put a checkmark in otherwise adb and fastboot will not work? Reboot a few times on your PC and update the drivers in Windows Device manager.. I remember once I had to reboot 3-4 times to finally get mine working. When you type adb --version then push enter in terminal and fastboot --version push enter what does it say?