Phone not detected in Fastboot - OnePlus 8T Questions & Answers

Long story short converted my phone from TMO to global. Went to relock bootloader but didn't flash the global rom from Oxygen updater and had to MSM back to TMobile. I have all the latest drivers installed and all the latest tools. My pC detects my phone when its booted but when I go into Fastboot I can't send commands to it. ADB Devices runs and says the list but does not show the device number. Sending a command comes back as device not found. If I unplug the phone my pC makes the disconnect sound. There's no sign of my phone in device manager but when I go down to the tool bar I can find Android device attached via USB.
I spent 2 hours already trying to get this to work and I'm out of ideas. I've even googled it and tried everything there. My last thought is to MSM again in hopes that it resets something

Smallsmx3 said:
Long story short converted my phone from TMO to global. Went to relock bootloader but didn't flash the global rom from Oxygen updater and had to MSM back to TMobile. I have all the latest drivers installed and all the latest tools. My pC detects my phone when its booted but when I go into Fastboot I can't send commands to it. ADB Devices runs and says the list but does not show the device number. Sending a command comes back as device not found. If I unplug the phone my pC makes the disconnect sound. There's no sign of my phone in device manager but when I go down to the tool bar I can find Android device attached via USB.
I spent 2 hours already trying to get this to work and I'm out of ideas. I've even googled it and tried everything there. My last thought is to MSM again in hopes that it resets something
Click to expand...
Click to collapse
Update: Looks like I'm good to go. Phone is connected again. B Now when I try to unlock my bootloader I can't flash the unlock token I get an t error cannot load unlock_token.bin

Got it all figured out!

Smallsmx3 said:
Got it all figured out!
Click to expand...
Click to collapse
What did you do for PC to see phone in fastboot mode? I have the same thing where it cannot see in fastboot mode

Arr6 said:
What did you do for PC to see phone in fastboot mode? I have the same thing where it cannot see in fastboot mode
Click to expand...
Click to collapse
Honestly I was typing in adb devices instead of fastboot devices. So I think my computer was detecting it. I did reinstall drivers that I got from the OnePlus site. I made allot of dumb errors

Related

[Q] LG-P506 Fastboot Can See My Device But Won't Show The Serial Number

So I have a LG p506 and I recently installed cyanogen-mod 10.1 on it. I had to use the November release as the newest one wouldn't load past the cyanogen logo(i let it run for a couple hours). Everything seemed to work great after that. So I put the phone in my backpack for a later date.
When i finally pull it back out the battery was completely dead, and plugging the phone into usb would not charge it. I used an external device to charge it.
Basically the only thing the phone can do now is load the lg logo, go into emergency mode, and fastboot. I can erase and flash images, I have tried system boot and recovery multiple times with different files.
However I get the same two things every time i try something:
1. when I plug the phone into usb, the phone will do its thing then give a STALL GET_DESCRIPTOR error
2. fastboot devices shows something but I get a "?" where the serial number should be.
I am not proficient enough with fastboot to try other commands. Any one have some advice?
Also, I've tried every usb port I have, theres only one that works with the phone. One of the usb ports shows up normally on the phone but fastboot won't show any devices. I am running windows 7 ultimate x64.
The one thing i haven't tried is reinstalling windows 8 on one of my hdd's and seeing if it isn't a win7 issue. Ive used it with win 8 before and it didn't give the error message.
baked cake said:
So I have a LG p506 and I recently installed cyanogen-mod 10.1 on it. I had to use the November release as the newest one wouldn't load past the cyanogen logo(i let it run for a couple hours). Everything seemed to work great after that. So I put the phone in my backpack for a later date.
When i finally pull it back out the battery was completely dead, and plugging the phone into usb would not charge it. I used an external device to charge it.
Basically the only thing the phone can do now is load the lg logo, go into emergency mode, and fastboot. I can erase and flash images, I have tried system boot and recovery multiple times with different files.
However I get the same two things every time i try something:
1. when I plug the phone into usb, the phone will do its thing then give a STALL GET_DESCRIPTOR error
2. fastboot devices shows something but I get a "?" where the serial number should be.
I am not proficient enough with fastboot to try other commands. Any one have some advice?
Also, I've tried every usb port I have, theres only one that works with the phone. One of the usb ports shows up normally on the phone but fastboot won't show any devices. I am running windows 7 ultimate x64.
The one thing i haven't tried is reinstalling windows 8 on one of my hdd's and seeing if it isn't a win7 issue. Ive used it with win 8 before and it didn't give the error message.
Click to expand...
Click to collapse
fastboot doesn't show a serial number for that device. At least never has for me. If 'fastboot devices' lists something like
Code:
List of devices attached
???????? fastboot
then you're good to go.
damn that was my only thing to go on lol. nothing will get this phone to boot into recovery. im about to get a sd card reader for my pc to test and see if its bad.
baked cake said:
damn that was my only thing to go on lol. nothing will get this phone to boot into recovery. im about to get a sd card reader for my pc to test and see if its bad.
Click to expand...
Click to collapse
You can use fastboot to flash another recovery. Rashed should have a link in the OP for the 4.1.2 ROM you said you were using. You can continue to use the command-line if you like, but I did write a Windows app for flashing recoveries. Links in my signature.
shinobisoft said:
You can use fastboot to flash another recovery. Rashed should have a link in the OP for the 4.1.2 ROM you said you were using. You can continue to use the command-line if you like, but I did write a Windows app for flashing recoveries. Links in my signature.
Click to expand...
Click to collapse
ill give it a try, but i have tried just about every recovery file i can get my hands on and no luck, also looks like winds 8 doesn't want to acknowledge my phones existence. I downloaded and installed the driver from LG but still no luck, windows 8 is giving me a failed descriptor error as well.
ok so i have been stumbling around for a bit and noticed something possible wrong.
Windows 7 device manager shows my device, installed correctly, but listed as USB Modem Phone ADB Port.
Shouldn't this be a fastboot port? Since ADB is only available via the android operating system, and i can't get into my operating system, all i have is fastboot.
I have ran thru quite a few fast boot recovery pages, and I don't know what im missing here.
baked cake said:
ok so i have been stumbling around for a bit and noticed something possible wrong.
Windows 7 device manager shows my device, installed correctly, but listed as USB Modem Phone ADB Port.
Shouldn't this be a fastboot port? Since ADB is only available via the android operating system, and i can't get into my operating system, all i have is fastboot.
I have ran thru quite a few fast boot recovery pages, and I don't know what im missing here.
Click to expand...
Click to collapse
I'd say that was/is the correct port name. I don't have that device anymore so I cannot say for sure.
Sent from my LG-P769 using Tapatalk
ok, so this is a follow up on some things i have tried recently.
Since my last post i have:
1. put the sdcard into my tablet, and formatted it/ ran an error scan on it via windows.
2. i then flashed a recovery file via my phones fastboot, i pulled that card put it back in tablet to see what files it installed.
3. according to windows, flash recovery installed a .LOST folder with nothing in it, which is the same thing my tablet has on its internal memory, so i don't think there's anything wrong there.
4. phone still cant boot past LG logo(or recovery), or charge the battery when plugged in.
5. I still get a stall get_descriptor error when connected via usb, and commands such as fastboot reboot don't work, tho the phone will say its rebooting (it says its rebooting then just sits there and does nothing, command prompt will say action completed).
6. one thing i have tried as well, is telling windows not to automatically install drivers, then uninstalling my phone from device manager.
Whats interesting about this was that windows was installing its own ADB modem driver from it's own library every time i plugged in the phone. After disabling auto drivers, and reinstalling my LG drivers, the phone simply remains an unknown device.
Some things I have tried include pointing windows to the driver folder, both the downloaded folder and the folder windows installed it to. Neither worked.
The next thing I tried is the have disc option on both. Although there are setup information files in the install folder (about 50 of em), pointing the phone to each file one at a time did not work.
What did work, interesting enough was pointing the phone to a set of Naked Drivers I downloaded, although none of those drivers are specifically for my phone, and they only gave me the same problem I had when i had windows auto installing its own driver.
LG L5 612 - fastboot issue
Hi,
I have an LG L5 612.
I'm trying to perform below actions, but always get "waiting for device" ... and nothing happens.
fastboot reboot-bootloader
fastboot flash boot boot.img
"adb devices" lists my device correctly, while "fastboot devices" output nothing.
C:\ADB>adb devices
List of devices attached
LGOTMS840b676a device
C:\ADB>fastboot devices
C:\ADB>
C:\ADB>fastboot reboot-bootloader
< waiting for device >

failed root fastboot only help please

I bought a t mobile one plus 7 pro - version gm31cb-on 9.5.10 before I read about the hassle it can be compared to an unbranded phone. The bootloader is unlocked.
I tried the msm tool to go to international version but it got stuck on parameter preload so I decided to try to root and get rid of the tmobile flash screen later.
long story shortened, the phone is stuck on the warning screen.
Pressing buttons, I can get it into fastboot but adb doesnt see the phone to flash/push anything.
If I try to boot into recovery, it sticks at the warning screen.
can I somehow get adb to see the phone in fastboot mode?
do you know if i need a certain os/file so i can get past the parameter preload with msm?
i followed the steps in the msm tutorial.
if msm sees the phone and it gets to parameter preload does it mean it is not a driver issue but maybe the wrong software?
Any advice is appreciated.
thank you for your time and expertise
Marc
through fastboot
I am using the universal fastboot and adb tool and trying to flash boot twrp and start over
current error: failed remote recovery a no such partition
after fastboot --set-active=b
same error
update 2
somehow, after simply trying over and over i got twrp on partition a
i think i will stay here until a kind member can direct me to an img that will work
thank you
marcadamf said:
I bought a t mobile one plus 7 pro - version gm31cb-on 9.5.10 before I read about the hassle it can be compared to an unbranded phone. The bootloader is unlocked.
I tried the msm tool to go to international version but it got stuck on parameter preload so I decided to try to root and get rid of the tmobile flash screen later.
long story shortened, the phone is stuck on the warning screen.
Pressing buttons, I can get it into fastboot but adb doesnt see the phone to flash/push anything.
If I try to boot into recovery, it sticks at the warning screen.
can I somehow get adb to see the phone in fastboot mode?
do you know if i need a certain os/file so i can get past the parameter preload with msm?
i followed the steps in the msm tutorial.
if msm sees the phone and it gets to parameter preload does it mean it is not a driver issue but maybe the wrong software?
Any advice is appreciated.
thank you for your time and expertise
Marc
Click to expand...
Click to collapse
You just need to update Qualcomm drivers.
https://forum.xda-developers.com/oneplus-7-pro/how-to/guide-mega-unbrick-guide-hard-bricked-t3934659
blas4me said:
You just need to update Qualcomm drivers.
https://forum.xda-developers.com/oneplus-7-pro/how-to/guide-mega-unbrick-guide-hard-bricked-t3934659
Click to expand...
Click to collapse
doing so now...
thank you for the help.
I somehow got it up and rooted.
will msm work while rooted or mess up root?
I have a gm1915 wich is not listed in the link for the drivers? any thoughts?
These should work. As for MSM tools use the international version.
If you can't shut off device, hold power + Vup for about 10 seconds without being connected to a power source. If your fast enough, keep device plugged, and just press Vdown, to boot recovery.
https://drive.google.com/file/d/1JoHF6RF1THVn3pQWywaJz2URGTPxL2pH/view
not sure where you are at right now, but i installed a wrong os version (android 10 on my phone with pie on it). It would only boot into fasdtboot screen no matter what I did or tried. Could not get adb to recognize it, had no twrp or rom installed correctly. No way to fix it, could not use MSM tool as phone had to be able to be shutoff, which mine couldn't. never recognized it due to that. tried drivers to no avail. not really many answers out there, til I found out about fastboot roms.
check out this page: https://forum.xda-developers.com/oneplus-7-pro/how-to/rom-stock-fastboot-roms-oneplus-7-pro-t3931424
* IMPORTANT: in above link, remember to only download the OS version that fits your phone previously. DO NOT try to update your phone to a different version using that method. Also this method will NOT work on a branded phone, so if your phone is originally a T-Mobile phone then unfortunately this is not a solution for ya.
You may also want to check out this page as well: https://www.reddit.com/r/oneplus/comments/3izejg/so_youve_just_bricked_your_oneplus/
I hope this helps. The Fastboot Rom solution worked for me, it saved me from throwing my phone in the trash. I ran the bat file and it did the rest.

Fastboot waiting for any device

Hello everybody, I was trying to update my Magisk and that process failed. I thought nothing of it put it off. Tried to restart my phone a few days later and now it's stuck in a fastboot loop. Cannot even go into recovery. So I'm like okay, probably need to reinstall recovery and flash a clean rom again. Try the "fastboot boot recovery.img" command and it's giving me a "waiting for any device". Googling says it's a driver error, but that's strange because I have used my phone on this computer before with ADB and fastboot. Fastboot and ADB commands work fine on my Oneplus 3T.
A week ago I also had the problems after the Magisk update. But connecting to the PC worked normally for me. Once you've installed the drivers, there shouldn't be any problems. You could use a different cable.
Incidentally, Magisk only messed up the boot image. It is sufficient if you flash your boot.img, then the twrp.zip, reboot into recovery, then the magisk.zip.
That was completely enough for me. Cell phone works normally again, without data loss.
Good luck!
Yeah that's exactly what I am trying to do, I can't even flash the boot.img to get into recovery, my computer won't recognize the device for some reason now. Do you know where I can find the drivers? I could only find shady 3rd party sites. Thanks!
Tried installing drivers from here, no change.
Download Latest OnePlus USB Drivers for Windows and Mac
Download The Latest OnePlus USB Drivers For All OnePlus Android Smartphones. We Have Included USB drivers for Both Windows And Apple MAC OS Users. Download Links Given Below.
www.getdroidtips.com
This is installed and works with me
ghost323 said:
This is installed and works with me
Click to expand...
Click to collapse
No joy, looks like that's the same file as the one I downloaded. Thanks for your help anyways.
Now I can't even turn my phone off lol. It woke itself up this morning magically and now whenever I hit power off in fastboot it just boots up again into fastboot. Might have to send it in...the horror
Your phone is crying out for help. It doesn't like to die.
I think you will have tried everything possible. Have you already connected it to another computer with the right drivers? Tried other cables?
ghost323 said:
Your phone is crying out for help. It doesn't like to die.
I think you will have tried everything possible. Have you already connected it to another computer with the right drivers? Tried other cables?
Click to expand...
Click to collapse
Haha yeah, it's like your kid who refuses to go to bed and is throwing a tantrum. Yeah two different computers that are known to have worked with this phone in the past (how I unlocked the bootloader in the first place). Different ports, different cables. It seems like I'm having the same issue that a lot of other people are having with the last Magisk update, except they're able to flash the recovery image in fastboot to get back running.
This is a ****ty situation! That was really a nasty magisk update. I wonder why its consequences are so different, even though it is the same cell phone.
fastboot cannot recognize device but adb can
usb debugging is enabled on device. running latest version of adb, fastboot. Have tried on both mac and win10 but same issue on both. Oneplus 7 pro is running 10.3.0GM21AA >fastboot devices >adb devices List of devices attached 966c8016...
forum.xda-developers.com
Look at this. Maybe it will help you so that your computer recognizes the cell phone again.

Oneplus 8T stuck in Qualcomm CrashDump mode

After trying to restore stock OOS and rebooting fastboot my phone is now stuck in Qualcomm Crashdump mode. I have MSMDownloadTool installed but it won't open, it just opens a windows saying "Program has been started" after executing it.
I also can't reboot to the bootloader, the phone just turns on or off.
What to do?
From my rather long post in https://forum.xda-developers.com/t/...your-device-to-oxygenos.4180837/post-86563159 :
"connect the phone to the PC whilst it's still in CrashDump mode and then press Pwr + Vol Up until the phone buzzes and then hold Vol Up + Vol Dn and MSM will then connect."
Thank you, that worked. I have another question if you don't mind:
I tried to restore OxygenOS with https://forum.xda-developers.com/t/...xygenos-fastboot-roms-for-oneplus-8t.4348023/ but it cant find the create-logical device and delete-logical-device commands, also when I try to flash some of the image files fastboot complains about not being able to flash system critical files. I tried running fastboot flashing unlock_critical but that didn't change anything. Is there any other way to restore Oxygen OS with fastboot or is there any fix to my issues? I've been looking on the web for a few hours now, to no result.
petrolblue said:
Thank you, that worked. I have another question if you don't mind:
I tried to restore OxygenOS with https://forum.xda-developers.com/t/...xygenos-fastboot-roms-for-oneplus-8t.4348023/ but it cant find the create-logical device and delete-logical-device commands, also when I try to flash some of the image files fastboot complains about not being able to flash system critical files. I tried running fastboot flashing unlock_critical but that didn't change anything. Is there any other way to restore Oxygen OS with fastboot or is there any fix to my issues? I've been looking on the web for a few hours now, to no result.
Click to expand...
Click to collapse
The delete/create logical commands are in the thread OP, but you have to tap on "click to show" button.
Note that fastbootd is not the same as fastboot. And you need to be in that mode to avoid the "critical" warning and to be able to do the logical partitions stuff.
So, after massively failing to update my 8T I am stuck in a bootloop with a bit of Crash dump [dm-verity device corrupted force dump].
I am still able to access fastboot but that is it. I can't get adb working, when I attempt to enter recovery mode all I get is a black screen, MSM is not able to find my phone/I can't get my phone to enter EDL (been trying for about 5 hours now).
I feel so defeated by this can anyone help me?
Did you read my post (#2)?
Does your PC make a sound when you connect your phone to it in EDL mode? If so, try reinstalling the Qualcomm driver (though I've never needed to do that).
If you can get into bootloader, then you can try using the method in https://forum.xda-developers.com/t/guide-unbrick-or-restore-to-oos-using-only-fastboot.4289013/
BillGoss said:
Did you read my post (#2)?
Does your PC make a sound when you connect your phone to it in EDL mode? If so, try reinstalling the Qualcomm driver (though I've never needed to do that).
If you can get into bootloader, then you can try using the method in https://forum.xda-developers.com/t/guide-unbrick-or-restore-to-oos-using-only-fastboot.4289013/
Click to expand...
Click to collapse
Whenever I connect my phone to the pc it just auto-boots. In my devices the driver does show up. But I don't think I have been able to access EDL.
I did reinstall the driver as well, no change. I tried installing the drivers and MSM stuff on a 2nd pc, still unable to get it going.
I did come across this method and my phone/fastboot keeps erroring whenever I try to use cmd for anything beyond Reboot fast boot. It's weird.
Angilias37 said:
Whenever I connect my phone to the pc it just auto-boots. In my devices the driver does show up. But I don't think I have been able to access EDL.
I did reinstall the driver as well, no change. I tried installing the drivers and MSM stuff on a 2nd pc, still unable to get it going.
I did come across this method and my phone/fastboot keeps erroring whenever I try to use cmd for anything beyond Reboot fast boot. It's weird.
Click to expand...
Click to collapse
I see that your PC sees the phone (Qualcomm...) but has an ! against it. If you open that you should see the option to update the driver.
PS: you may need to flash boot, DTBO, and recovery in fastboot first before you can use fastbootd to flash the other partitions for the fastboot method.
BillGoss said:
I see that your PC sees the phone (Qualcomm...) but has an ! against it. If you open that you should see l the option to update the driver.
Click to expand...
Click to collapse
Right but where's the update? From everything that I can find it is the most updated version
Angilias37 said:
Right but where's the update? From everything that I can find it is the most updated version
Click to expand...
Click to collapse
I use the driver (Qualcomm HS-USB QDLoader 9008) from https://www.catalog.update.microsoft.com/Search.aspx?q=qualcomm hs usb 9008
OK
BillGoss said:
Did you read my post (#2)?
Does your PC make a sound when you connect your phone to it in EDL mode? If so, try reinstalling the Qualcomm driver (though I've never needed to do that).
If you can get into bootloader, then you can try using the method in https://forum.xda-developers.com/t/guide-unbrick-or-restore-to-oos-using-only-fastboot.4289013/
Click to expand...
Click to collapse
Ok I take back what I said! That link with the CMDs worked!
I really don't know what I did differently, probably skipped a step or something, but I was able to reset my phone!
Still unsure what is going on with the drivers but the crisis has been averted!
Thank you BillGoss! You are incredibly helpful!

Question Need Help - ROG 5s bootloop

Hi All
I have ROG 5s tencent edition. it was modified by seller to global. I have been using it for more than 1 year now. Last night something happened and it went off. I tried turn it on but it kept bootlooping at logo. It is not detetedable by computer because bootloader was locked by seller before selling. I had no idea about that at that time.
MY device is now in bootloop. I can open bootloader but it won't take me to recovery mode. Fastboot commands are also not working . Phone not found by computer in any state. Can any one provide me with some pointers on how an i flash firware,
Recoery is not opening. When I select it from bootloader it keeps bootlooping
Fastboot is not seen by computer. Tried many cables, both ports.
If anyone can guide me that be a huge favor as this is my daily driver
Your device should be dected in bootloader mode even if it has been locked. Connect via the side port with a good data cable and check drivers on Windows.
Once you have verified you have access to send Fatboot commands to the device in Bootloader mode, you can simply do a RAW flash to any working version and then upgrade normally to the firmware version you want. You don't need unlocked bootloader to flash this way.
Andrologic said:
Your device should be dected in bootloader mode even if it has been locked. Connect via the side port with a good data cable and check drivers on Windows.
Once you have verified you have access to send Fatboot commands to the device in Bootloader mode, you can simply do a RAW flash to any working version and then upgrade normally to the firmware version you want. You don't need unlocked bootloader to flash this way.
Click to expand...
Click to collapse
I have tried but it is not detected as anything. Not even unknown device. I have installed qualcomm drivers. What other drivers are there? Could u tell?
dksoni411 said:
I have tried but it is not detected as anything. Not even unknown device. I have installed qualcomm drivers. What other drivers are there? Could u tell?
Click to expand...
Click to collapse
If there isn't a hardware issue with the device, you should be able to.
Try to delete the driver and re-install it. Use the official Android USB driver from the SDK as opposed to Qualcomm drivers from random places on the net. Plug it in from the side port and try to turn it on while connected. Have Device Manager in Windows open and notice changes. Read out what it is recognized as. If absolutely nothing, then it's the cable, Windows or the device may really have a motherboard defect.
I believe it's more likely motherboard. Is there any fix for it?

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