I have a Nexus 7 2013 that wont boot. USB Debugging was not enabled. At this point, I am just trying to wipe the machine with a stock image, but I am having trouble.
I have installed the sdk and drivers (so many drivers!)
Recovery mode fastboot does not recognize the device.
ADB recognizes the Nexus, but I cant seem to get it to do anything with it.
e: failed to mount anything.
I have read through so many forum threads that I'm just overwhelmed, and they all seem to require the machine being in USB debugging mode before any changes can be made.
Please help or tell me what pertinent information I have omitted.
Thank you
I think USB debugging only matters in ADB, which is when the device is actually booted into Android OS. You probably want fastboot, which is a different "application" and set of commands in a command prompt.
Code:
fastboot devices
Does that give you anything when the tablet is in fastboot mode? It should list the serial number of the device, similar to "adb devices" does. If not, it could be drivers, or another issue with the device.
Have you tried unlocking the bootloader? This will induce a factory reset of the current firmware version, which may allow you at least boot normally and take any available OTA updates.
Hello,
fastboot devices lists nothing, while adb does show the serial number.
I have used so many tutorials and a couple of toolkits that now I have no idea what is happening with my drivers.
Unlocking the bootloader to force a factory reset sounds amazing, but all the information I can find says I need to have USB debugging enabled to do so. I can not boot into the system to enable it.
Is there a way to force a reset without USB debugging?
Thank you
Usb debugging is irrelevant. Forget about it, it's only used when the system is booted.
You need to get fastboot devices to recognize the tablet.
Uninstall any and all toolkits and drivers. Redownload the sdk. Boot to the bootloader and plug it in, the drivers should install automatically. If not install the google usb drivers from the sdk manager in the sdk.
Try fastboot devices again. If it doesn't work try a different usb cord/port/computer.
You are in the bootloader when running this command right? Not the recovery? I think with the tablet off it's volume down and power. The screen that says start in big green letters at the top and has device info in the bottom left is what you want.
Edit: Did you boot to recovery and select the options to wipe data and cache? Sometimes thats all thats needed.
Also booting to recovery and performing a factory reset may be sufficient.
ADB will indeed function in recovery. I don't think you have to enable USB debugging to get this to work though.
Are you typing fastboot devices while booted in recovery? Typing fastboot devices while in recovery or booted into Android will do nothing.
hello, thank you for your advice. I now get the nexus seen by fastboot (and win 7) but have hit a wall. The last time I had my computer and the nexus together was weeks ago, when I my computer BSOD during what I thought was a simple flashing of the the stock image, but turned out to be hours of the nexus saying it was erasing personal data ... and then crash. I have replaced and added fans so my cpu wont overheat again, so please offer ideas why "fastboot flashall" or "fastboot flash image-razor-kot49h" wont work.
I appreciate all responses, and believe the answer is either very simple or a catastrophic hardware failure. I base this belief on what is left in my head after smashing it into the wall so many times over the last month when my wife asks me, "have you fixed my nexus yet, or do I need to figure out a way to buy a new one next month?"
I am stuck at unlocking the bootloader. I have highlighted "yes" on the nexus and pressed power and my command window says "erasing user data." It has said this for the last 18 hours. This is the second computer I have tried this on, using 3 different usb cables. What am I missing?
helpmynexus said:
hello, thank you for your advice. I now get the nexus seen by fastboot (and win 7) but have hit a wall. The last time I had my computer and the nexus together was weeks ago, when I my computer BSOD during what I thought was a simple flashing of the the stock image, but turned out to be hours of the nexus saying it was erasing personal data ... and then crash. I have replaced and added fans so my cpu wont overheat again, so please offer ideas why "fastboot flashall" or "fastboot flash image-razor-kot49h" wont work.
I appreciate all responses, and believe the answer is either very simple or a catastrophic hardware failure. I base this belief on what is left in my head after smashing it into the wall so many times over the last month when my wife asks me, "have you fixed my nexus yet, or do I need to figure out a way to buy a new one next month?"
I am stuck at unlocking the bootloader. I have highlighted "yes" on the nexus and pressed power and my command window says "erasing user data." It has said this for the last 18 hours. This is the second computer I have tried this on, using 3 different usb cables. What am I missing?
Click to expand...
Click to collapse
I have the same problem .. Have You reslove it?
bikicviki said:
I have the same problem .. Have You reslove it?
Click to expand...
Click to collapse
This may help...it may not. But I was having issues getting my bootloader unlocked also when I started on mine. My remedy was to
1 plug in the nexus into the usb
2 I run Linux so it gives me choices on what to do with newly plugged in usb device. I noticed two identical choices to mount device. Choosing one just mounted the camera for some strange reason. I closed that window, then chose the other choice to mount device, the window opened and my full internals were there in the window
3 from a terminal I just wrote a prompt: fastboot oem unlock
and for some reason, it unlocked.
To sum it up I'm convinced it has something to do with how the device gets mounted. At least on mine anyway.
As for activating developer from a terminal I read it could be done but never tried it myself, if you want here's the link for the info, read the second answer down.
https://stackoverflow.com/questions/47510232/is-there-any-adb-command-to-enable-developer-options
Also check out the fastboot manual for some other things to try, you never know some may work in your situation at a terminal prompt
man fastboot
---------- Post added at 07:12 PM ---------- Previous post was at 06:57 PM ----------
Troops42 said:
This may help...it may not. But I was having issues getting my bootloader unlocked also when I started on mine. My remedy was to
1 plug in the nexus into the usb
2 I run Linux so it gives me choices on what to do with newly plugged in usb device. I noticed two identical choices to mount device. Choosing one just mounted the camera for some strange reason. I closed that window, then chose the other choice to mount device, the window opened and my full internals were there in the window
3 from a terminal I just wrote a prompt: fastboot oem unlock
and for some reason, it unlocked.
To sum it up I'm convinced it has something to do with how the device gets mounted. At least on mine anyway.
As for activating developer from a terminal I read it could be done but never tried it myself, if you want here's the link for the info, read the second answer down.
https://stackoverflow.com/questions/47510232/is-there-any-adb-command-to-enable-developer-options
Also check out the fastboot manual for some other things to try, you never know some may work in your situation at a terminal prompt
man fastboot
Click to expand...
Click to collapse
Tried to edit but anyway:
After re..re, rereading your post, and responces. Have you tried the old fashioned way
Hold down the (down volume) button at the same time the (power) key.."Together" If you get anything that pops on your screen let go of the keys, one tap at a time tap the volume up or down key ONLY, until it says (START), its in green type. if you get there you should be ok, to move along
Related
Hello friends,
How to get into fastboot to relock the bootloader, if my volume button is dead? By dead, I mean the ribbon has been ripped off of the mobo (it was soldered onto mobo).
Since I'm a brand-new noob, the only way I know of and have done is to get into fastboot mode and lock it back up like what I did when I unlocked it. Any other way to lock it, ideally within the Android OS? Since my volume buttons are completely dead, I doubt that I can get into any "mode" other than OS right now..
TIA!
adb reboot bootloader.
I've seen that command in a post from search earlier, but there was no response after that post.
Would you explain the procedure? I am afraid that I might do anything wrong on top of these disasters i've gone thru with this phone
I also saw another line during earlier search: "if they don't know how to setup an adb command, they probably shouldn't unlock their phones"... Looks like I've done what I shouldn't..?
I would say doing whatever ripped the volume button cable out was what you shouldn't have been doing If you unlocked the phone you have the software you used to unlock, right? What software/guide did you use/follow? Are you using Windows/Linux/Mac? The only way to get to the bootloader w/o the volume buttons (afaik) is to use adb via usb. If you provide more details I can try to help you.
cswithxda said:
I've seen that command in a post from search earlier, but there was no response after that post.
Would you explain the procedure?
Click to expand...
Click to collapse
Once you're in adb reboot bootloader, do fastboot oem lock. Opposite of how you unlocked it in the first place
cswithxda said:
I've seen that command in a post from search earlier, but there was no response after that post.
Would you explain the procedure? I am afraid that I might do anything wrong on top of these disasters i've gone thru with this phone
Click to expand...
Click to collapse
navigate your cmd line to the folder with adb and fastboot in it. Hook the phone up to the computer and type:
Code:
adb reboot bootloader
which will make your phone reboot into the bootloader mode. You can then proceed with what you need to do.
I also saw another line during earlier search: "if they don't know how to setup an adb command, they probably shouldn't unlock their phones"... Looks like I've done what I shouldn't..?
Click to expand...
Click to collapse
I agree with whoever said that. This is another example of people messing with things before reading and learning how they work.
Thanks for your help guys!
btw, anyone found xdadevelopers to load extremely slower in Firefox when compared to Chrome? (just offtopic)
Anyway, I unlocked the bootloader when I was switching to yakju cmd and this folder called "fastboot-and-adb" in which there is both adb.exe and fastboot.exe. I used command "fastboot unlock bootloader" or something alike.
I'll do some more search and learn. Don't want you guys to think of me as a lazy bone who unlocked their bootloader using 1-click toolkit
p.s. edit: in my other thread, someone suggested using quickboot app.
Thanks for your replies guys!
martonikaj said:
navigate your cmd line to the folder with adb and fastboot in it. Hook the phone up to the computer and type:
Code:
adb reboot bootloader
which will make your phone reboot into the bootloader mode. You can then proceed with what you need to do.
I agree with whoever said that. This is another example of people messing with things before reading and learning how they work.
Click to expand...
Click to collapse
Somehow it says device not found
I do have proper driver (Naked Driver Beta 0.5 by 1wayjonny) that my phone was able to be recognized under bootloader at the time when I could actually get into bootloader. My phone is also being recognized as media device now... I have also turning usb debug on...
Try adb remount
The ad devices
This should list the serial number
Then all commands should work
Sent from my Galaxy Nexus using xda premium
cswithxda said:
Somehow it says device not found
I do have proper driver (Naked Driver Beta 0.5 by 1wayjonny) that my phone was able to be recognized under bootloader at the time when I could actually get into bootloader. My phone is also being recognized as media device now... I have also turning usb debug on...
Click to expand...
Click to collapse
You need to turn USB debugging on, and then type "adb devices" and see if it shows up. It may not using the Naked Driver; I had to install the full Samsung USB driver package before ADB would see my Galaxy Nexus.
If it does show up, then you type "adb reboot-bootloader" and it should boot into fastboot. Then just type "fastboot oem lock" and it will wipe the storage partitions and restore the bootloader lock.
Thanks for the help at late night guys. I finally got into the bootloader, thru a mac tho Kinda ironic that I am a supporter of Windows, well, at least a firm user of Windows.
Tried adb remount, it still says device not found
synaesthetic said:
You need to turn USB debugging on, and then type "adb devices" and see if it shows up. It may not using the Naked Driver; I had to install the full Samsung USB driver package before ADB would see my Galaxy Nexus.
If it does show up, then you type "adb reboot-bootloader" and it should boot into fastboot. Then just type "fastboot oem lock" and it will wipe the storage partitions and restore the bootloader lock.
Click to expand...
Click to collapse
I believe that you quoted my "I have turned USB debug on" ;p
Gave up on trying Windows drivers. When I was flashing the Yakju, I tried Samsung full driver, and it didn't work on my machine, i.e., the phone can't be detected in bootloader mode, while the beta 0.5 driver worked. So I decided not to mess with it anymore.
It looks like when the phone is not under bootloader, windows recognize it fine as MTP devices and install proper samsung driver from the internet directly. This allows me to open it up in explorer to browse files and such, but the phone won't show up under adb devices somehow.
Looks like MTP device (when the phone is in Android OS) and the fastboot mode use two kinds of drivers. This is just my assumption, though.
Anyway, finally got into bootloader now with Mac, and it's pretty funny I have to do everything thru command as the volume rockers are dead
And most importantly, thank you guys for your help!
Just another update
It's real funny now that the bootloader is locked, I can't unlock it again cuz I don't have the volume button working, so I couldn't choose YES on the phone.
I'm not trying to unlock it again, but just to confirm if there's really no work around, in case I encounter this situation again in the future
Lucky that locking the bootloader won't erase everything, or I won't be able to flash a ROM with it locked... :cold sweating:
Hey all,
I've been rooting phones for a little bit, so when I got my Nexus 7 a couple weeks ago and found that it was as simple as "fastboot oem unlock", I was thrilled. However, it ended up not being that simple, of course.
At first I couldn't get the device to show up for ADB or fastboot at all, even though Windows recognized the device. I downloaded the zip file of the drivers from Google, no luck. Downloaded a new version of the Android SDK, and used the adb/fastboot from it, and then ADB was able to see the N7 and was able to reboot it into the bootloader. However, once in the bootloader, it stops recognizing that the N7 is connected again. Trying "fastboot oem unlock" just causes the program to display <waiting for device> indefinitely.
So that's where I'm stuck now, I haven't been able to find any concrete details on this that are for the N7 2013 (pretty much everything I've found has either not been helpful or has been related to the original N7). Anyone able to help from here? Thanks!
Do u have USB debugging enabled in developer settings? Try turning your USB computer connection to PTP from MTP if you haven't already in storage settings. Then a pop-up will come on your n7 asking to approve your computer to see it. Tell it yes
>^.^< Sent From Meow HTC One
DowntownJeffBrown said:
Do u have USB debugging enabled in developer settings? Try turning your USB computer connection to PTP from MTP if you haven't already in storage settings. Then a pop-up will come on your n7 asking to approve your computer to see it. Tell it yes
>^.^< Sent From Meow HTC One
Click to expand...
Click to collapse
Thanks for the suggestions. Alas, I tried these things. The problem exists now when I'm in the bootloader, which is where fastboot won't recognize that the device is attached.
tigerxchaos said:
Thanks for the suggestions. Alas, I tried these things. The problem exists now when I'm in the bootloader, which is where fastboot won't recognize that the device is attached.
Click to expand...
Click to collapse
When you have the device connected to your computer when it's at the Bootloader screen, what does Device Manager show on your computer? Does it recognize the tablet but doesn't know what it is? You may need to install the drivers when you have the device in the Bootloader menu. I use the Google USB Driver (which you can download in the SDK Manager), right click on the device in Device Manager, select "Update Driver Software", "Browse my computer for driver software", "Let me pick from a list of device drivers on my computer", then browse the list. It may be listed under Android Device, Google...just look down the list, then select the appropriate driver. I believe from there you can select "Android Bootloader Interface", and that should let fastboot commands work.
You may need to reboot the computer.
Make sure you are using the usb cable that came from asus.
Thanks for the help. I tried the process again on a different computer, and eventually got it to work. I was able to unlock bootloader and flash TWRP 2.6.3.0. However, I was only able to mount System, Cache, and USB-OTG as partitions in TWRP, so I couldn't figure out where to drop the SuperSU binary .zip file. I tried rebooting, and (this may have been a mistake) installed the TWRP SU binaries on the way out. Now the device is stuck in a bootloop. Not sure if it was related to the SU binaries or the fact that I couldn't load any sort of data partition. Any thoughts?
EDIT: Apparently the root instructions don't make it clear that you will lock your data partition if you don't boot the device after unlocking the bootloader. I went straight into TWRP from the bootloader after unlocking it, and got a password request. Hit "Cancel" and it let me into TWRP, but factory reset failed. I had to wipe data, wipe cache, then reboot, then do a factory reset and now I'm back in.
Hello again. I've posted this problem in another thread and didn't get very far so I'm re-rolling the issue and posing it another way. Ok, here goes:
Tablet is a generic Chinese tablet. Klu by Curtis model number LT7052. This is a password locked unit that the original owner could not fix and has since abandoned the unit. I'm attempting any method for working around this problem and have gone through all the normal procedures. USB debugging is off. I can access recovery mode, however no combination of button pushing will yield the actual menu, you just see Andy, lying on his back with a red triangle and exclamation point hovering above him (maybe some kind of added caution screen, maybe corrupted recovery?). When I attach it to the computer at this point, load the Android ADB drivers, and type in "adb devices" I get:
"0123456789ABCDEF recovery"
"abd shell" yields the "No such file or directory <2>" error. Not really surprising as USB debugging is off.
When I use the "reboot fastboot" command and then reinstall the appropriate drivers the device is not found. Again, locked, no debugging, not really a huge surprise. I've even tried the wipe command from fastboot and it just sits there waiting for the device, again not a huge surprise since it cant be found.
I was able to locate the original firmware on the manufacturer's website and downloaded it, but I'm not sure what options I have at this point. It's really just a fun project for me trying to figure this out, but having the tablet operational would be a plus. If anyone has any ideas on how to proceed at this point I'd be willing to try just about anything, no matter how "off the cuff" it may seem. Any way to force feed this tablet the original OS without shell access? Thoughts? Suggestions? Thanks a ton for reading.
Bump for another look. Thanks!!
Wondering if any of you guys can advise me - having strange problems with fastboot (windows 8.1 and Zenfone 2 ze550ml). Wanted to flash the pre-rooted image to my device so downloaded it and extracted to the flashtools folder and renamed system.img then hooked up my phone. Checked adb drivers were installed and adb devices command returns a code string, so assumed all was good to go with flashing. However, on entering any fastboot command it just sits at "waiting for device". Tried manually starting the phone in fastboot and then connecting it, and this did enable me to execute fastboot commands (reboot or reboot-bootloader work). However, fastboot flash system system.img just results in a message about file size and then "failed to load system.img"
kanagawaben said:
Wondering if any of you guys can advise me - having strange problems with fastboot (windows 8.1 and Zenfone 2 ze550ml). Wanted to flash the pre-rooted image to my device so downloaded it and extracted to the flashtools folder and renamed system.img then hooked up my phone. Checked adb drivers were installed and adb devices command returns a code string, so assumed all was good to go with flashing. However, on entering any fastboot command it just sits at "waiting for device". Tried manually starting the phone in fastboot and then connecting it, and this did enable me to execute fastboot commands (reboot or reboot-bootloader work). However, fastboot flash system system.img just results in a message about file size and then "failed to load system.img"
Click to expand...
Click to collapse
You need to rename the system image to system.img and put it where the fastboot file is. It's looking for it but can't find it.
No, don't think that is my problem - as I said I extracted it to the flashtools folder, so it is already where the fastboot file is. And anyway, though I'd like to solve the problem of flashing the system.img, I am kind of more interested in why I can't get past "waiting for device" without first manually entering the fastboot mode.
Cause Windows sucks. I'm on Linux and no issues. Maybe someone on Windows can chip in?
I can easily do a quick ubuntu install and try it that way if you think it might work better. At the weekend maybe. Could you give me some pointers on how to do it in linux if I do? Would be much appreciated!
kanagawaben said:
No, don't think that is my problem - as I said I extracted it to the flashtools folder, so it is already where the fastboot file is. And anyway, though I'd like to solve the problem of flashing the system.img, I am kind of more interested in why I can't get past "waiting for device" without first manually entering the fastboot mode.
Click to expand...
Click to collapse
I have encountered that problem with the "waiting for device" while I was flashing pre root rom.
Try the cmd adb devices
Then it will list the device connected to the computer...if it says not authorized, then you need to check the phone which is turned on and a pop up window with the RSA key and tap on trust this computer or something..
Then repeat adb devices and it should say allow or something..then it will allow you to flash.
(double check the commands online, I might missed something)
Nah, don't blame Windows... I flashed mine with Windows 10 and worked wonders.
Also... could it be that PC isn't USB 3.0? Perhaps system.img transfer is stopped somewhere during the copying phase?
Thanks, but actually the first time I tried it I did the adb devices command and authorised my pc on the phone. When I connect and do adb devices now it shows the string of numbers code for the device. However, still can't get past "waiting for device"
My pc has both usb 3 and usb 2 ports. Tried on all of them and with various different cables including the asus issued ones, all to no avail.
Can u post a pic of your flashtool folder?
Sent from my Nexus 7
Here is a snap of my platform-tools folder and cmd window
Did you manage to find a solution to this?
I updated the zenfone 2 via OTA to the latest system update.
Ive read and downloaded all relevant files to install the pre root img from the correct sources.
Now when I hold power + vol up. I can see the droid on its back. I choose the RECOVERY option and press power button to select.
When phone reboots it goes to droid icon and says installing system upgrade.................then error appears! No recovery mode!
All the correct drivers are installed into Windows 7, the phone asks me to allow RSA key connection to laptop.
Ive tried the flash tool installer 1.0.7 with phone connected and system img (renamed) and still nothing.
Anyone got any ideas?
Ive factory reset twice in a row and allowed debugging.
Ive placed the (renamed) system.img into the fastboot folder and tried the open command with line ' fastboot flash system system.img' and the reply is usually unable to read system.img or device waiting.
Ive installed the latest android sdk develppment kit and still unable to root using this pre root image.
Im familiar with android and how to follow instructions on rooting, but this zenfone 2 is mind boggling.
Thanks for reading. I know its someone else post. I didnt want to start a fresh post with the same dilemma.
Any advice on whats going wrong would be appreciated.
tsam19 said:
When phone reboots it goes to droid icon and says installing system upgrade.................then error appears! No recovery mode!
Click to expand...
Click to collapse
Hit power and vol up again, just really quickly. Don't hold it, just press and let go. Sometimes it takes several attempts.
hkdmjack, yes your right managed to do it at last.
Cheers
Hi guys, I am facing quite a difficult problem at the moment.
My friend has "accidentally" attempted to use an Asus Zenfone 5 rooting method to root his zenfone 2 550ML.
When I received it to take a look at it, I instantly noticed that I could not get into fast boot (or droidboot). I expected to see usual droid with text on the left side and also expected to be able to select from a number of options using the volume keys (i have some past experience), but instead am met with this solid usb logo. One like this: h ttp://zenfo ne-blog-forum.2 8820.n7.nabble.c om/file/n4 5/P_20140728_051139 .jpg (remove spaces)
I did some research, and found that there were many "bricked" zenfone 5's which were stuck on this usb logo, however this zenfone 2 can start up normally and be used throughout the day normally. Only when I try to enter fast boot, by either ADB commands or by power + volume up, I cannot get past the usb logo.
I have linked up the ZenFone to my computer, and confirmed that ADB devices correctly lists the device (I have usb debugging enabled), however, when I try to go to fast boot and am met with the usb logo, my computer does register and detect the phone, however, under device manager it has a yellow triangle with the device named "" MOOREFIELD". When the ZenFone 2 is in this usb logo state, I cannot access any fast boot commands. I am quite stumped at the moment.
Any help please? By the way, I use a windows 8.1 computer with usb 3 ports. However, I have tested using different cables, and on a windows 7 laptop with usb 2 ports, still to no avail. Should I try and update the firmware using Asus' software? Or is there a better solution?
Thanks
Edit: My friend claims that he did not see at any point in time, the flashing on the zenfone 2 start. He was faced with a "<waiting for devices>" or something similar message, telling me that the phone was not fully in fast boot yet. If I can get it into fast boot, I am sure I can reflash the custom stock onto the phone, and most issues will be resolved.
same error
i have the same error by my zenfone2 after update
please help
amohammadiazar said:
i have the same error by my zenfone2 after update
please help
Click to expand...
Click to collapse
Could you specify which update you did? From your computer? Or via Asus update on ur phone?
pkvk9122 said:
Could you specify which update you did? From your computer? Or via Asus update on ur phone?
Click to expand...
Click to collapse
my orginal firmware is CN and i wanted to change to WW mode i tried by pc .... now when i conect phone t pc it want moorefeild driver for conection and i dont have those ,,
Whenever I try to flash system.img it gets stuck on "writing 'system'..." and just hangs there. I have left it for over half an hour and it still didn't work. Does anyone know a solution to this problem?
Hey guys,
So after a while without any responses, I headed over to Asus customer service to receive a very unhelpful reply.
I gave up hope of finding an answer online and so I decided to take a leap of faith by updating the firmware via the Asus Update app on the phone.
I upgraded from 2.14 to 2.15 and miraculously fastboot seemed to have restored itself. I am not sure whether or not every single update restores fastboot, or whether the update to 2.15 does, but I'm glad that it has been fixed.
My previous problems of being unable to detect fast boot devices has been resolved. Hopefully others who have experienced the same issue can find this post helpful.
Trying to unlock bootloader on my pixel 2 XL. Using a windows 10 64-bit laptop, usb-c cable that came with the phone, latest drivers and up to date platform tools. Debugging enabled. OEM unlock enabled.
Phone is recognized in ADB just fine. "Adb devices" results in the the device being listed. "ADB reboot bootloader" reboots the phone into fastboot mode just fine. Once in fastboot mode, however, "fastboot devices" yields nothing.
Pulling my hair out here, and not much hair left to pull. I suspect I'm going to have to tinker with the computer's security settings to get the drivers to install correctly. Any thoughts?
I seem to remember the same thing happening when I got mine a couple days ago and unlocked the BL within a few hours of unboxing. I ended up doing the standard unlock followed by unlock critical commands anyway. Worked fine for me.
morrowa2 said:
Trying to unlock bootloader on my pixel 2 XL. Using a windows 10 64-bit laptop, usb-c cable that came with the phone, latest drivers and up to date platform tools. Debugging enabled. OEM unlock enabled.
Phone is recognized in ADB just fine. "Adb devices" results in the the device being listed. "ADB reboot bootloader" reboots the phone into fastboot mode just fine. Once in fastboot mode, however, "fastboot devices" yields nothing.
Pulling my hair out here, and not much hair left to pull. I suspect I'm going to have to tinker with the computer's security settings to get the drivers to install correctly. Any thoughts?
Click to expand...
Click to collapse
Try just turning the phone off and then entering fastboot via volume down and power button. THEN, plus in your phone. Do a 'fastboot devices' and see if it shows up now. In my experience, I got my phone...checked oem unlock and all that...booted into fastboot mode via hard method. And my phone is detected instantly. I did not install any drivers, update platform tools (mine is from like 2012), and even used a third-party USB-C cable. It works every time. Also, I am using the adb and fastboot executables from an older adb minimal set. Probably from like a year or so ago. I don't ever use the SDK ones really anymore.
morrowa2 said:
Trying to unlock bootloader on my pixel 2 XL. Using a windows 10 64-bit laptop, usb-c cable that came with the phone, latest drivers and up to date platform tools. Debugging enabled. OEM unlock enabled.
Phone is recognized in ADB just fine. "Adb devices" results in the the device being listed. "ADB reboot bootloader" reboots the phone into fastboot mode just fine. Once in fastboot mode, however, "fastboot devices" yields nothing.
Pulling my hair out here, and not much hair left to pull. I suspect I'm going to have to tinker with the computer's security settings to get the drivers to install correctly. Any thoughts?
Click to expand...
Click to collapse
I'd check and make sure your adb/fastboot is up to date, or do a reinstall just in case.
There are so many options for adb/fastboot and drivers. Where does one find "the latest," that everyone is speaking of?
Thanks for the suggestions but still not working. Even tried disabling driver signature verification at startup. I'm going to uninstall everything, factory reset the device and start over. Might also try a usb-c to usb-a cable. Any other thoughts?
Update: Nothing worked until I used a usb-c to usb-a cable, then it worked like a charm. Must be a Lenovo thing.
morrowa2 said:
Thanks for the suggestions but still not working. Even tried disabling driver signature verification at startup. I'm going to uninstall everything, factory reset the device and start over. Might also try a usb-c to usb-a cable. Any other thoughts?
Update: Nothing worked until I used a usb-c to usb-a cable, then it worked like a charm. Must be a Lenovo thing.
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I can't even get adb to recognize my device ....I have used multiple cables I'm about to return this phone
canemaxx said:
I can't even get adb to recognize my device ....I have used multiple cables I'm about to return this phone
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have you tried a usb-c to usb-a cable. that worked for me.
morrowa2 said:
There are so many options for adb/fastboot and drivers. Where does one find "the latest," that everyone is speaking of?
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Click to collapse
Latest ADB/fastboot: https://developer.android.com/studio/releases/platform-tools.html
Latest USB driver: https://developer.android.com/studio/run/win-usb.html
I had no luck except about once in 20 it'd work. Then swapped to a different USB-C port on my laptop, then it worked. FWIW, I tried USB-C to USB-C and USB-C --> USB-A (adapter) to USB-C and it didn't make a difference.
js042507 said:
Try just turning the phone off and then entering fastboot via volume down and power button. THEN, plus in your phone. Do a 'fastboot devices' and see if it shows up now. In my experience, I got my phone...checked oem unlock and all that...booted into fastboot mode via hard method. And my phone is detected instantly. I did not install any drivers, update platform tools (mine is from like 2012), and even used a third-party USB-C cable. It works every time. Also, I am using the adb and fastboot executables from an older adb minimal set. Probably from like a year or so ago. I don't ever use the SDK ones really anymore.
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I did this and when in the bootloader screen, I am able to display fastboot devices, but when I go into recovery mode and try and flash something via ADB (the November patch since I am not pulling it OTA), it seems to start but it just sits at "Verifying update package" on the phone and "loading: 'taimen-ota-******.zip'" and never progresses. Almost like the PC and the phone are not talking properly?
tluley51 said:
I did this and when in the bootloader screen, I am able to display fastboot devices, but when I go into recovery mode and try and flash something via ADB (the November patch since I am not pulling it OTA), it seems to start but it just sits at "Verifying update package" on the phone and "loading: 'taimen-ota-******.zip'" and never progresses. Almost like the PC and the phone are not talking properly?
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Like others have stated, maybe try a USB-C to regular USB-A cable. I have only used that type of cable, but didn't realize that the actual cable that comes with the phone might be a problem. I never used it to test that theory though.
js042507 said:
Like others have stated, maybe try a USB-C to regular USB-A cable. I have only used that type of cable, but didn't realize that the actual cable that comes with the phone might be a problem. I never used it to test that theory though.
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Yeah that is all I have ever used. I use a USB A to C Cable Matters cable.
tluley51 said:
Yeah that is all I have ever used. I use a USB A to C Cable Matters cable.
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I don't know then. I haven't attempted the update yet to provide any feedback. However, others have reported this issue in the 'November OTA' thread. I would look there.
morrowa2 said:
Trying to unlock bootloader on my pixel 2 XL. Using a windows 10 64-bit laptop, usb-c cable that came with the phone, latest drivers and up to date platform tools. Debugging enabled. OEM unlock enabled.
Phone is recognized in ADB just fine. "Adb devices" results in the the device being listed. "ADB reboot bootloader" reboots the phone into fastboot mode just fine. Once in fastboot mode, however, "fastboot devices" yields nothing.
Pulling my hair out here, and not much hair left to pull. I suspect I'm going to have to tinker with the computer's security settings to get the drivers to install correctly. Any thoughts?
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For anyone in the future, ensure the that Device Manager is showing the 'Android Composite ADB Interface' driver installed.
Then, just download the latest Platform Tools (from https://developer.android.com/studio/releases/platform-tools), and from inside that folder, open a Powershell prompt, and then 'adb reboot bootloader'. Once you are in the 'fastboot' mode, the 'fastboot devices' command works.
I had the same problem. I fixed it by plugging in my UBS-C to USB-A cable into a USB 3 port instead of a USB 2 port.
I am facing the same issue, its been almost 20 days. Tried everything but couldn't get it worked. So dropped the idea of rooting my px2L
My issue was I needed to replace the drivers for fastboot mode (ADB was fine). There are two drivers, one for each mode.
fastboot doesn't see device
I've read a lot of articles about this problem but I can't resolve it. I decided to install my developer application on phone using wifi. To do this I need to do some things with my phone. The firs...
android.stackexchange.com
cooltime said:
My issue was I needed to replace the drivers for fastboot mode (ADB was fine). There are two drivers, one for each mode.
fastboot doesn't see device
I've read a lot of articles about this problem but I can't resolve it. I decided to install my developer application on phone using wifi. To do this I need to do some things with my phone. The firs...
android.stackexchange.com
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Click to collapse
worked for me thanks.
cooltime said:
My issue was I needed to replace the drivers for fastboot mode (ADB was fine). There are two drivers, one for each mode.
fastboot doesn't see device
I've read a lot of articles about this problem but I can't resolve it. I decided to install my developer application on phone using wifi. To do this I need to do some things with my phone. The firs...
android.stackexchange.com
Click to expand...
Click to collapse
This works... Get the Google Driver.