Hey folks,
i have a problem with my shieldtablet. The fastboot doesn't work properly. I cannot load anything via "fastboot flash blablabla.img". Minimal ADB and Fastboot just shows "waiting for device" and if i check the devices via "fastboot devices" is just shows nothing but the normal command prompt.
Then i did a mistake and flashed the twrp 3 version with an older one, so i am unable to enter the recovery-mode. If i chose Recovery Mode via bootloader (or if i restart the tablet into recovery mode) it has a short bootloop and then after some trials it starts normal into Blisspop.
How could i flash this without the fastboot? Is there any trick i could use?
The tablet is unlocked. I had several custom-roms installed. Currently Blisspop 6.4 without playstore.
That looks like your PC is not seeing your tablet. Boot into fastboot mode, connect it to your PC and look in Windows device manager for the device.
Thanks a lot! ADB worked fine on Win10. Last time I flashed the recovery was on my old Win7-System. It seems, that the Upgrade deleted just the fastboot drivers.
One last question: is it normal, that if i chose the fastboot protocoll entry on the bootloader, that it restarts the bootloader?
Yes, that's normal. The menu entry is redundant because when you see it you are in fastboot mode already.
Related
Hello.
Earlier today I wanted to try a new JB rom to replace ICS so I transfered it into SD card and tried to reboot into recovery.
Instead of getting to recovery, I got stuck in fastboot mode, so I'm assuming recovery has been damaged.
After a whole afternoon of researching this forum I tried for several times this tutorial in order to install a recovery and afterwards a ROM (http://forum.xda-developers.com/showthread.php?t=1088046) and similar ones in both Mac OS X and Windows 7 (tried both USB 2.0 and USB 3.0 so its not a problem from USB) and I didn't succeed at all.
When I am using Windows 7, when I use "fastboot erase recovery", I keep receiving this message "waiting device". If I write "fastboot devices", I don't get results.
When using Mac OS X, I can get via command line to the folder "platform-tools" where fastboot is located but if I write "fastboot erase recovery" or something, it says "command not found". I've read it could be because I have to set fastboot as an environmental variable, but I having trouble setting it (Mac OS Lion).
Thank you so much for reading. Please help me!!! Any clues would be really appreciated!
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UPDATE: I finally managed to communicate with the device.
I used the following commands from this tutorial http://androidforums.com/optimus-m-all-things-root/382525-guide-get-out-fastboot-mode-2.html
fastboot erase boot
fastboot erase recovery
fastboot erase system
fastboot flash recovery
The problem is, now I'm stuck at LG Logo, can't access fastboot... Please help, I think it's even worse now.
boot rom, pull out battery and boot normal, it does or not? if it does use terminal emulator or adb push to install custom recovery, adb will work in fastboot if you had checked android debugging
http://forum.xda-developers.com/showthread.php?t=1007244
http://forum.xda-developers.com/showthread.php?t=1146566
grigtm said:
boot rom, pull out battery and boot normal, it does or not? if it does use terminal emulator or adb push to install custom recovery, adb will work in fastboot if you had checked android debugging
http://forum.xda-developers.com/showthread.php?t=1007244
http://forum.xda-developers.com/showthread.php?t=1146566
Click to expand...
Click to collapse
I don't understand what you mean by boot rom. Every time I turn on the phone, (normal or as POWER+HOME+VOL DOWN) it goes into fastboot. When I pull out the battery, and power again it goes again into fastboot...
techdani said:
I don't understand what you mean by boot rom. Every time I turn on the phone, (normal or as POWER+HOME+VOL DOWN) it goes into fastboot. When I pull out the battery, and power again it goes again into fastboot...
Click to expand...
Click to collapse
ok, read here http://forum.xda-developers.com/showthread.php?t=1088046 do exactly what says in this thread
Hi everyone, this is the first time i write here. I've been dealing with this problem for some hours now and it seems i can't get out of it alone.
Today i decided to wipe the N5 and install Lollipop. I downloaded the factory image, wiped everything from TWRP (i know it was unnecessary...), started to flash all the stuff from ADB...but i got some error. I tried again, and got the same error again. So i started to mess around...a guide told me to give adb the following commands:
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
I think it was after this that ADB stopped recognizing my phone, and now i can't even get to the recovery. I tried uninstalling and reinstalling sdk and google usb drivers plenty of times, i even tried some alternative solutions like LGUnitedMobileDriver and Universal Naked Driver.
I can see that windows sees the device (which now only works in fastboot mode) from Device Manager, and that ADB is working (if i give the command "adb version" it responds correctly), but there's no way to make adb recognize the Nexus. If i just install the drivers, Device Manager shows it as "Android Bootloader Interface". A guide i found says to manually select "Android ADB Interface" or "Android Composite ADB Interface", and so i have done (i have to untick the "show compatible hardware" box in the installation process to see this options), but no luck.
Does anybody have any idea how to solve this? What may i have missed?
You need fastboot commands to flash images in recovery. ADB will only recognize the device when you have android running
Try "fastboot devices" command without quotes. It should detect your phone and return a serial number. If so, flash the images (see the sticky on how to return to stock and follow the method 2)
Adb and fastboot are two different things. ASB works in android or recovery but is not used for flashing. Fastboot works in bootloader.
I wrote an "adb and fastboot" thread. Use it uninstall your Google drivers and install naked.
Omg, it was that simple! Thank you guys, you were so fast :good:
If you downloaded the factory image, it seems like you just need to flash that with fastboot.
1). Reboot into the boot loader by holding down volume when powering on.
2). Type fastboot devices to make sure your phone is recognized.
3). Untar the image and execute the flash-all.bat script. This will completely factory reset your phone, including stock recovery. Note this will also delete your internal storage files.
If you don't like this approach, you can also flash the recovery partition with fastboot flash recovery recovery.img, where recovery.img is the TWRP image you downloaded. Once you boot into recovery you can restore a nandroid or whatever from there. Good luck.
Sent from my Nexus 5 using Tapatalk
Hello guys. I have HTC Sensation, Bootloader unlocked, S-ON, HBOOT-1.27.0000
Yesterday I tried to flash TWRP using fastboot. I have downloaded ADB drivers and also HTC drivers. Connected device and everything was working good. ADB showed my device serial number (or what it is, I don't remember) when I type "adb devices" in command. Then I typed "cd Downloads" to point to download directory (this is where I have twrp.img) and at least "adb reboot bootloader" . Device rebooted into bootloader, but, suddenly, popup appeared on my laptop, it was saying "USB device not recognized". I have closed it and go into command, I typed "adb devices" again, but it didn't show anything at this time. Then I run command "fastboot flash recovery twrp.img" and it returned "Waiting for device...".
After no luck., I have tried to install twrp.img though Flashify. It successfully flashed. I go into recovery, make a backup, perform clean wipe and tried to flash CM12. But it didn't flash. Then I go to restore tab but I can't see my backup. So, TWRP is not flashing anything, I have even tried stock ROM, also it's not backing up things. So now, I'm in bootloop, no OS is installed on my sensation and every time I boot up device, it automatically going into recovery.
I have laptop running Windows 10. I want to make ADB working in bootloader mode or make TWRP working to flash something.
Thanks in advance.
DroidTwe4kz said:
Hello guys. I have HTC Sensation, Bootloader unlocked, S-ON, HBOOT-1.27.0000
Yesterday I tried to flash TWRP using fastboot. I have downloaded ADB drivers and also HTC drivers. Connected device and everything was working good. ADB showed my device serial number (or what it is, I don't remember) when I type "adb devices" in command. Then I typed "cd Downloads" to point to download directory (this is where I have twrp.img) and at least "adb reboot bootloader" . Device rebooted into bootloader, but, suddenly, popup appeared on my laptop, it was saying "USB device not recognized". I have closed it and go into command, I typed "adb devices" again, but it didn't show anything at this time. Then I run command "fastboot flash recovery twrp.img" and it returned "Waiting for device...".
After no luck., I have tried to install twrp.img though Flashify. It successfully flashed. I go into recovery, make a backup, perform clean wipe and tried to flash CM12. But it didn't flash. Then I go to restore tab but I can't see my backup. So, TWRP is not flashing anything, I have even tried stock ROM, also it's not backing up things. So now, I'm in bootloop, no OS is installed on my sensation and every time I boot up device, it automatically going into recovery.
I have laptop running Windows 10. I want to make ADB working in bootloader mode or make TWRP working to flash something.
Thanks in advance.
Click to expand...
Click to collapse
adb doesn't work in bootloader, only fastboot
when you enter in bootlaoder choose fastboot
in the hboot screen you will see fastboot usb
then you can use any fastboot command
i suggest to change the recovery to 4ext
http://d-h.st/rG7
extract the recovery.img and flash it via fastboot command
then before flashing the new rom from 4ext enable smartflash from it(because you are on S-ON)
rzr86 said:
adb doesn't work in bootloader, only fastboot
when you enter in bootlaoder choose fastboot
in the hboot screen you will see fastboot usb
then you can use any fastboot command
i suggest to change the recovery to 4ext
http://d-h.st/rG7
extract the recovery.img and flash it via fastboot command
then before flashing the new rom from 4ext enable smartflash from it(because you are on S-ON)
Click to expand...
Click to collapse
It doesn't even works in fastboot too :/ So I can't use any fastboot command
DroidTwe4kz said:
It doesn't even works in fastboot too :/ So I can't use any fastboot command
Click to expand...
Click to collapse
Probably win 10 is the issue
rzr86 said:
Probably win 10 is the issue
Click to expand...
Click to collapse
Drivers and SDK is compatible with Windwos 10. I don't think it's the problem, but thanks anyways.
DroidTwe4kz said:
Drivers and SDK is compatible with Windwos 10. I don't think it's the problem, but thanks anyways.
Click to expand...
Click to collapse
use usb 2.0 ports not 3.0
if nothing works then a ruu.exe to return back to stock
http://forum.xda-developers.com/showthread.php?t=1672425
by the way did you enable usb debugging mode from settings?
rzr86 said:
use usb 2.0 ports not 3.0
if nothing works then a ruu.exe to return back to stock
http://forum.xda-developers.com/showthread.php?t=1672425
by the way did you enable usb debugging mode from settings?
Click to expand...
Click to collapse
OK thanks, I'll try them.
Well, I'm not that much noob USB Debugging is enabled.
Hello. I can't get my phone rooted in any way.
I want to Root so I can use TWRP app to flash TWRP recovery .img, and after that I can boot into TWRP recovery and flash new ROM. Correct????
What I've tried so far. OppoTools 1.6.5 = One key root gets hard stuck on Oppo logo at start-up and then I have to flash Coloros ROM again from recovery. Also KingRoot says app not installed. On windows version of KingRoot it gets to some percentage and then it Fails.
I have downloaded "unlocked bootloader" Coloros from this forum that was mentioned before ( Dropbox link )
I have also tried two different ColorOs versions.
I have installed 15sec ADB installer.
I plug my phone into PC and run CMD.
I type adb devices into command prompt and it detects my R7 plus.
then I try to command " adb reboot bootloader "
Phone restarts normally and doesnt go to bootloader. Tell me if im stupid, but isn't Bootloader different than Recovery? Because I can get to recovery command "adb reboot recovery"
I tried some weird button combination Vol+ Vol- + Power and phone semibricked for awhile and PC didnt even react USB driver correctly and almost waved the white flag on this case.
I've enabled USB-debuggin and OEM unlock from devices dev-options.
When I to type command "fastboot oem unlock" on command prompt is says Waiting for device. Nothing pops-up on device and nothing happens.
So now Im stuck on situation that my phone doesnt launch into bootloader where presumably "fastboot oem unlock" would work?
If you have flashed the version of Color OS that has bootloader enabled, you should simply need to go into the settings, enable USB debugging and OEM unlocking, then shutdown the phone before holding the power and volume+ buttons and waiting the ADB bootloader screen. After that, just plug it into the computer and follow the guide on flashing twrp with ADB.
My phone is running perfectly fine. But after updating my phone last week officially, my PC doesn't recognize the phone in Fastboot. I'm trying to flash a custom recovery and root it, but in CMD, when I type fastboot devices, nothing comes up.
I am in the Fastboot mode when I try to do this. My phone was rooted earlier too with no issues. Also, in the Fastboot mode, The Bootloader version and the baseband version is blank. I tried different ports and a different cable along with a different PC, nothing seems to help.
Any suggestions?
Hi, did you ever get an answer?
I am having this exact same problem as well. Computer isn't recognizing the device as a fastboot device, I can't even run the fastboot boot recovery.img command to get into recovery.
I was able to get it to recognize my phone in fastboot mode by following the directions in this post: https://forum.xda-developers.com/t/...nize-device-but-adb-can.4040635/post-84052027
Though I never was able to root or install TWRP, this did allow my computer to recognize the phone in fastboot mode.