Unable to ADB & fastboot all of a sudden - Verizon HTC One (M8)

I have a adb enabled under developers section along with allow install of non- google apps. I have the HTC_fastboot files in the proper folder and I have navigated to that. When I type 'adb devices' I get 'list of devices attached'. When I reboot to bootloader fastboot returns the same response instead of giving me the serial number like usual.
This just happened all of a sudden when my computer stopped recognizing that my phone is connected. I can't do anything with it. Can anyone think of a way to get my phone to be recognized by adb and fastboot so that I can get into flashing mode and RUU mode too?

Solved. When all else fails, check the most simple solution:
I let my sister borrow one of my usb cables not long ago so she could charge her phone, and it appears she gave me a different one back (I didn't notice- I didn't think she had one to begin with). It seems the one she gave me was a charge only cable. Don't I feel like an idiot. Wah wah waaahhhh.

Related

[Q] Fastboot problem

hello,
I'm hoping someone here can help me sort out my current problem.
I've been trying to root so I can install the latest ICS port, but having problems at the Fastboot screen.
I apologize in advance if some of the references/names I'm using are incorrect.
So, I had originally unlocked my Nexus S sometime early this year. When I restart the phone, the "unlocked" lock picture shows up under the "Google" words, and when I go into fastboot mode, the Lock State is Unlocked.
I'm running 2.3.6 right now on the Tmobile version of the phone.
When the phone is on (not in fastboot mode), I can execute ADB commands and the device is recognized. As soon as I go into fastboot it isn't.
I'm running 64bit Win 7, and I have gone through the various threads that have listed this issue, and installed PDA Net drivers and still there is no solution.
In Fastboot mode, while connected to computer under device manager, it shows up under Universal Serial Bus Controllers as an Unknown Device... I'm unable to update any drivers for it, and even when I try to manually update the drivers by going to the PDANet drivers it does not allow it.
When the phone is on in regular mode in device manager it shows up as Android Phone and within that it has a listing called Android Composite ADB Interface.
As mentioned above, when phone on in regular mode everything is detected.
I installed clockwork app from market, assuming that the phone was "rooted" based on the "unlock state" in fastboot mode, but it immediately says that phone needs to be rooted because it was unable to find SuperUser file etc etc.
I've spent the better part of a few days trying to figure this out by checking all sorts of links, but I haven't found a solution. The main issue is that the phone is not being recognized when in fastboot mode when connected by USB. And I'm unable to install the proper drivers for fastboot mode.
Hopefully this makes sense, and someone can provide some insight.
Thanks in advance!
I'm not positive about this but couldn't you adb push the su binary and apk? I don't own the Nexus but I would think since its unlocked you could just push the files. If this would work I would think it's just a temporary solution to allow superuser permission. As I understand it, fastboot is the preferred method for the Nexus.
Sent from my PG06100 using Tapatalk
Did you try a fastboot command like fastboot devices?
Don't know if this applies to you but I had a similar sounding problem when trying to root my Nexus S where everytime I booted into fastboot mode I had an error message at the bottom of the screen saying something like 'fastboot status-fail Invalid command' and so I couldn't use any fastboot functions.
To get around it I used this one-click root . For some reason I got an error message halfway through for whatever reason and it wouldn't complete the root for me but it booted me into fastboot without receiving the error message and then once I was in I went and rooted manually.
The CWM is out of date on that site though (possibly the super-user zip too) so I replaced them with the latest versions and popped it in my dropbox for you, if you wanna try it out.
http://dl.dropbox.com/u/47770734/One-Click-Nexus-S.zip
Edit: just had a little look through the bat script and the initial commands that got me into fastboot properly is (with your phone in debugging mode):
adb start-server
adb reboot bootloader
Click to expand...
Click to collapse
So you could try that first if you wanna go through manually.
Know that you can't run adb command while in fastboot mode. Boot into your CWM and then you can start an adb shell and you'll be able to push all the files you want and execute all the commands you need.
Fastboot mode is for running fastboot indeed. Try 'fastboot devices' while you're in the bootloader and see if devices pop up. If not, you really have to figure out your drivers issue. Maybe remove the device completely from your PC (including driver files) and reinstall it using the PDAnet drivers.
Greetz

[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 >

ADB/Fastboot cannot see my device

Im having some trouble with ADB / Fastboot commands. No matter if i try "fastboot devices" or "adb devices" they both show nothing / no device. I've tried the commands to the TWRP recovery, a booted os and the bootloader in fastboot mode. Nothing seems to be working. Im using the well known adb/fastboot 15 sec installer from here. I've tried two win10 computers and now a win7 computer although all 64 bit, which have not been a problem before.
In the bootloader on the phone with the cable plugged in, the red fastboot text doesn't show "FASTBOOT USB" unless i move the cursor (like it doesnt update before i move the cursor). Im running the command prompts with administrative rights. I've also tried different cables, but im beginning to think that its the phones micro usb connector that is faulty, although MPT is working fine in windows, and transfers files without problems. Its a HTC One S im trying to do this on. All i want is to update my recovery!
Is there something very obvious im missing?
I found a solution however a wierd one. I already had debugging enabled on the phone, but thought that i should try and disable it, and then re-enable it right after. This seemed to trigger something, as my computer now started to install some drivers, that it had been missing before. After this fastboot commands and adb commands ran without any trouble.
Da9L said:
I found a solution however a wierd one. I already had debugging enabled on the phone, but thought that i should try and disable it, and then re-enable it right after. This seemed to trigger something, as my computer now started to install some drivers, that it had been missing before. After this fastboot commands and adb commands ran without any trouble.
Click to expand...
Click to collapse
I just tried that and it absolutely worked for me too. Thanks. Very bright person you are.

[GUIDE] V20 Fastboot access in Windows.

So I'm seeing a ton of posts of folks not able to get fastboot to see their devices. I've done some tinkering around and found a set of drivers that work fine for both ADB and Fastboot. (Attached)
Uninstall any ADB drivers you have on your system. Easiest way is to plug your phone in, go into device manager, right click your phone and select uninstall and check the box that says to remove the driver as well.
Then download this package, extract, simply run install.exe as admin. Don't panic, it doesn't do anything visual.
Now plug your phone in and see if adb works, you may need to authorize the computer again on the phone so make sure it's unlocked.
Reboot into bootloader and check if fastboot sees the phone by using
Code:
fastboot devices
If not then go back into device manager and right click on your phone, select update driver, let me select one from a list and you should see "Fastboot interface (Google USB ID)". Select this one.
Check fastboot without unplugging with the same command. Check and see if you can send commands to the phone by using for instance,
Code:
fastboot getvar unlocked
If the command fails, simply plug the phone into a different USB port and the same Google driver should install again and you should be able to send commands to the phone. Alternatively, you can reboot the phone by tapping the battery out and starting it all over again.
Now she chooches.
Lemme know if you're still having problems.
bless up ??
Does this work for sprint variant?
im having problems...damn it i don't get this
---------- Post added at 03:19 PM ---------- Previous post was at 02:42 PM ----------
any help please?
Verizon variant here,
I cannot seem to get this dang V20 in the right mode
(I've seen a bootloader or two in my day):highfive::laugh::silly:
I have used the adb command (several times)
Code:
adb reboot bootloader
to get it into bootloader mode, alas it is to no avail since all the command does is send the phone into "Restart" mode; nor can I get fastboot to recognize it when it is in, what I believe to be , the bootloader for said LG V20 of the
Verizon persuasion!​
Suggestions?
You need fastboot, not bootloader... To get it, turn off your phone, plug your LG cable into the computer, ( but not the phone yet) hold the volume down key for 5 seconds then plug it into your cable, do not release the button till your phone boots. It should boot into fastboot... Provided you have turned on USB debugging in developer settings (turn on oem unlock while you are in there too. (this is the way on the tmo V20 at least... If that doesn't work, I would use the dirty Santa guide
Sent from my LG-H918 using Tapatalk
Not sure how I finally got it working for my Verizon variant as I tried like four or five different ways, but someone should definitely make a video.. Perhaps I will since I think visuals are a good aid to go along with written instructions..
Thanks bro works
Very easy
With my t mobile v20
My phone shows as connected in adb devices. I can also get it to reboot bootloader, but once im there.. I cant issue any commands such as fastboot oem device-id. It gives me the dreaded waitng for any device.
can't manage to make this work for H990DS, i don't get the usual authorization window to the computer, only get the window to choose which USB mode (battery charge, file transfer, so on...) I'm trying to get adb to work to activate agressive Doze on Greenify app, any help?
Thanks
Vexamus said:
So I'm seeing a ton of posts of folks not able to get fastboot to see their devices. I've done some tinkering around and found a set of drivers that work fine for both ADB and Fastboot. (Attached)
Uninstall any ADB drivers you have on your system. Easiest way is to plug your phone in, go into device manager, right click your phone and select uninstall and check the box that says to remove the driver as well.
Then download this package, extract, simply run install.exe as admin. Don't panic, it doesn't do anything visual.
Now plug your phone in and see if adb works, you may need to authorize the computer again on the phone so make sure it's unlocked.
Reboot into bootloader and check if fastboot sees the phone by using
Code:
fastboot devices
If not then go back into device manager and right click on your phone, select update driver, let me select one from a list and you should see "Fastboot interface (Google USB ID)". Select this one.
Check fastboot without unplugging with the same command. Check and see if you can send commands to the phone by using for instance,
Code:
fastboot getvar unlocked
If the command fails, simply plug the phone into a different USB port and the same Google driver should install again and you should be able to send commands to the phone. Alternatively, you can reboot the phone by tapping the battery out and starting it all over again.
Now she chooches.
Lemme know if you're still having problems.
Click to expand...
Click to collapse
Perfect and Easy!!!! :good:
thx..ur ma angel
I can't find my phone in Device Manager.
this is great and works like a charm! thanks!
Thanks!

Botched Graphene install on Pixel 3A - need help restoring default settings

Hello,
I am hoping for some advice on how to revert my phone back to its original "factory settings" after a botched instal of GrapheneOS onto an unlocked Google Pixel 3A.
I got to the point at which I needed to Flash the Graphene Rom to the phone, but rather than installing, I received a message from Smart Screen MS edge asking if I really wanted to run as it's protecting my PC - I clicked run anyway and a blank command line window appeared for a second. Now my pc doesn't seem to be recognising the pixel 3A when I type ADB devices. My phone is currently in Fastboot mode "unlocked" and I'm hoping for some advice on what to do next. I'm total noob, so unsure how to start the process over (return the phone to it's previous state) before, maybe, trying again on a different PC.
I have since turned on my phone and Android 11 is still present and seems to work fine (however it gives me a warning on startup that the bootloader is unlocked.
Any help would be very much appreciated - thank you in advance.
Is all what happened that your phone now:
complains about "'maybe not safe bootloader unlocked".
This is just what android does when the bootloader is unlocked.
This you did before trying the flash.
If you want the warning gone simply lock it again.
However if you into the market for graphene OS then I would recomend: along with following their guide to a t to also read up here on xda about the general rooting unlocking thing a bit more so you get the overall process a bit better perhaps next time.
About windows. There are so many tools out there to help ya with disabling some of it's spying, turning off smartscreen, auto - uploads of all your data to M$oft, etc etc.
It's not hard to find.
Thanks for the response - I think I've worked out what is going on.
Typing ADB devices, my PC recognises the phone until I put it into fastboot mode - typing adb devices when in fastboot comes back with nothing and therefore when I try to flash, I assume the devices aren't talking to each other.
Not sure if there's a work around or whether it's a case of finding a new PC to try it on?
Thanks again.
Ignore
deroller said:
Thanks for the response - I think I've worked out what is going on.
Typing ADB devices, my PC recognises the phone until I put it into fastboot mode - typing adb devices when in fastboot comes back with nothing and therefore when I try to flash, I assume the devices aren't talking to each other.
Not sure if there's a work around or whether it's a case of finding a new PC to try it on?
Thanks again.
Click to expand...
Click to collapse
try another USB port first; use USB 2.0 if available! Reinstall google ADB drivers, make sure to use latest!
If above will not help:
on your computer: open device manager; on your phone: put your phone into fastboot; connect your phone to the computer WHILE keeping an eye on device manager; as soon as you'll connect your phone new device will appear in device manager ("unknown device" most likely but it might be some "android device" or "ADB device" too); right click it —> update driver —> automatic driver update worked in most cases for me, if not, go manual way and select google's "android fastboot device" (or something like that, can't remember actual name of the device); after driver install confirmation you should be good to go
Tamsta_T said:
try another USB port first; use USB 2.0 if available! Reinstall google ADB drivers, make sure to use latest!
If above will not help:
on your computer: open device manager; on your phone: put your phone into fastboot; connect your phone to the computer WHILE keeping an eye on device manager; as soon as you'll connect your phone new device will appear in device manager ("unknown device" most likely but it might be some "android device" or "ADB device" too); right click it —> update driver —> automatic driver update worked in most cases for me, if not, go manual way and select google's "android fastboot device" (or something like that, can't remember actual name of the device); after driver install confirmation you should be good to go
Click to expand...
Click to collapse
Hey there,
This is brilliant - thanks for all the advice. Having this support is helping me gain the confidence to learn more, research more, and then give it a go.
All the best.
deroller said:
Thanks for the response - I think I've worked out what is going on.
Typing ADB devices, my PC recognises the phone until I put it into fastboot mode - typing adb devices when in fastboot comes back with nothing and therefore when I try to flash, I assume the devices aren't talking to each other.
Not sure if there's a work around or whether it's a case of finding a new PC to try it on?
Thanks again.
Click to expand...
Click to collapse
thats if I am not wrongly remembering my experience:
because now your phone is in fastboot mode thus it won't show up with that command anymore.
Try: 'fastboot devices'
I imagine you put it into fastboot through: 'reboot fastboot' when you where in adb?
When in fastboot you can go on and flash the recovery and such.
Are you still in need of help here?
Hey, thanks for the clarification - been away and so haven't implemented all suggestions, yet.
I typed "adb reboot booloader" which I assumed put it into fastboot mode and then unlocked it using "fastboot flashing unlock".
I tried fastboot devices but the PC still doesn't see the phone. I'm going to try the update usb driver suggested by Tamsta_T and see how it goes.
Thanks for your help.

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