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[Q] Nexus S not appearing in device manager in fastboot

I'm attempting to flash clockwork recovery and can't get the phone to respond to fastboot devices when in fastboot mode. I've tried everything I can find with regards to the drivers (pdanet, usbdeview, etc) and I can get google's and pdanet's drivers working fine with the phone booted normally (responds to adb devices). The problem seems to be that windows appears not to even notice that the phone is plugged in in fastboot mode and does not appear in the device manager, making the manual installation of drivers an impossibility.
Anyone know how to fix this?

stoo said:
I'm attempting to flash clockwork recovery and can't get the phone to respond to fastboot devices when in fastboot mode. I've tried everything I can find with regards to the drivers (pdanet, usbdeview, etc) and I can get google's and pdanet's drivers working fine with the phone booted normally (responds to adb devices). The problem seems to be that windows appears not to even notice that the phone is plugged in in fastboot mode and does not appear in the device manager, making the manual installation of drivers an impossibility.
Anyone know how to fix this?
Click to expand...
Click to collapse
in the main setting, application, developer settings.. is usb debugging enabled?

stoo said:
I'm attempting to flash clockwork recovery and can't get the phone to respond to fastboot devices when in fastboot mode. I've tried everything I can find with regards to the drivers (pdanet, usbdeview, etc) and I can get google's and pdanet's drivers working fine with the phone booted normally (responds to adb devices). The problem seems to be that windows appears not to even notice that the phone is plugged in in fastboot mode and does not appear in the device manager, making the manual installation of drivers an impossibility.
Anyone know how to fix this?
Click to expand...
Click to collapse
When I first set up ADB and Fastboot on my pc, I was getting a response when writing 'adb devices' in the console. However, 'fastboot devices' returned absolutely nothing.
Solution (with phone connected to pc and usb debugging cheched):
1-shut down the phone
2-press and hold Volume Up key + Power
3-once in bootloader interface, in the pc command prompt, type 'fastboot devices'.
Voila!
By the way, don't mount the phone as usb storage device.

Thanks for the responses guys but yes, USB debugging is enabled and yes, I've used that way to get to fastboot mode as well as adb reboot bootloader

Hi stoo
I have a same issue - did you managed to find solution for yours?
Cheers,
Wiktor

vstar said:
Hi stoo
I have a same issue - did you managed to find solution for yours?
Cheers,
Wiktor
Click to expand...
Click to collapse
easy way to set up fastboot

Any solution
Have the same problem: locked bootloader, not rooted 4.1.2. In ADB everything is ok, drivers ok (in device manager), can get it through "adb devices". But when I boot in fastboot (adb reboot bootloader), I hear the ti-da windows sound (usb unpluged - from adb session), but no ta-di when the phone re-boot in fastboot. No exclamation mark in device manager, nothing. The USB receive nothing when in fastboot. Is it possible that the fastboot image is corrupted? Can I reflash it? Or any other advice?
Thanks
EDIT - SOLVED - at least this step
The problem was the famous "broken power button"! I knew that I had problems with the power button (didn't work - that's why I try to flash a rom (4.2.1 or customized) with sleep tile in notification area).
I thought that the button is all the time OFF and don't switch to ON, but I finally understood that when when I boot in fastmode it freeze before installing device on the PC (I also had no volume up / down navigation in fastboot, a sign that it was frozen). So I ended to consider that the power button was permanently in ON position. I opened my phone and I measure the impedance on the power button. I had ~ 4ohms in off position of the button and 1.8 ohms (cheap multimetter.... probably should be almost 0) in on position. I measured also on volume switch where I had ~ infinite on off position, so I concluded that the button if blocked. I tried to see if I can resurrect it but no choice, so I took it off (unsoldered). I put the battery and the USB cable and boot it. From ADB I reboot it in fastboot and voila! The device popped in device manager! One problem solved! BUT...
I tried to use the Nexus Root Toolkit and it boots in fastmode and try to unlock the bootloader, but it asked me on phone screen if I agree for unlocking. I was able to use the volume to select Yes but I couldn't choose it with power! I had no option but to take the battery off. Starting from that point it was almost impossible to power it again. When I plugged the USB it shown the battery icon (charging). I tried every trick that I found on web, but nothing worked (even to fast plug / unplug many times the USB to overcharge it, but nothing). I was able only by pressing on the middle of volume (so Up and DOWN in the same time) and plus the USB to get to the screen of unlocking bootloader, but without the options YES/NO on the screen. Seems that it saves this state between boots, but why no option? Finally I was unable to boot at all, and it is like totally bricked
I thought that the power button is a simple switch ON / OFF, so I soldered 2 wires and I tried to touch them (short circuit) to simulate the ON, but nothing happened. Is it the button more complex that a simple switch? no ideea...
So now have a better phone than before (at least theoretically it should be able to fastboot), but it values zero because I can't power it on....

OK So I am in the exact same situation.
Nexus S, Broken power button, adb can see the device, fastboot cannot. fastboot cannot be navigated with the volume keys.
I also want to put an other rom onto it, but firstly I want to put TWRP recovery on it, as it supports touch, CW needs the power
button which like mentioned does not work.
I would rather not unsolder my power button to get into fastboot, any suggestions on how that might still be achieved?
thx
catalinu said:
Have the same problem: locked bootloader, not rooted 4.1.2. In ADB everything is ok, drivers ok (in device manager), can get it through "adb devices". But when I boot in fastboot (adb reboot bootloader), I hear the ti-da windows sound (usb unpluged - from adb session), but no ta-di when the phone re-boot in fastboot. No exclamation mark in device manager, nothing. The USB receive nothing when in fastboot. Is it possible that the fastboot image is corrupted? Can I reflash it? Or any other advice?
Thanks
EDIT - SOLVED - at least this step
The problem was the famous "broken power button"! I knew that I had problems with the power button (didn't work - that's why I try to flash a rom (4.2.1 or customized) with sleep tile in notification area).
I thought that the button is all the time OFF and don't switch to ON, but I finally understood that when when I boot in fastmode it freeze before installing device on the PC (I also had no volume up / down navigation in fastboot, a sign that it was frozen). So I ended to consider that the power button was permanently in ON position. I opened my phone and I measure the impedance on the power button. I had ~ 4ohms in off position of the button and 1.8 ohms (cheap multimetter.... probably should be almost 0) in on position. I measured also on volume switch where I had ~ infinite on off position, so I concluded that the button if blocked. I tried to see if I can resurrect it but no choice, so I took it off (unsoldered). I put the battery and the USB cable and boot it. From ADB I reboot it in fastboot and voila! The device popped in device manager! One problem solved! BUT...
I tried to use the Nexus Root Toolkit and it boots in fastmode and try to unlock the bootloader, but it asked me on phone screen if I agree for unlocking. I was able to use the volume to select Yes but I couldn't choose it with power! I had no option but to take the battery off. Starting from that point it was almost impossible to power it again. When I plugged the USB it shown the battery icon (charging). I tried every trick that I found on web, but nothing worked (even to fast plug / unplug many times the USB to overcharge it, but nothing). I was able only by pressing on the middle of volume (so Up and DOWN in the same time) and plus the USB to get to the screen of unlocking bootloader, but without the options YES/NO on the screen. Seems that it saves this state between boots, but why no option? Finally I was unable to boot at all, and it is like totally bricked
I thought that the power button is a simple switch ON / OFF, so I soldered 2 wires and I tried to touch them (short circuit) to simulate the ON, but nothing happened. Is it the button more complex that a simple switch? no ideea...
So now have a better phone than before (at least theoretically it should be able to fastboot), but it values zero because I can't power it on....
Click to expand...
Click to collapse

Yes, it should have been better for me to have also a possibility to enter in fastboot with the power button blocked in ON position, but I didn't find. And now I know no way how to power it up...

fastboot drivers
http://www.samsung.com/us/support/owners/product/GT-I9020PWAATT#
has anybody considered using this executable from samsung ..
from what i understood when installing it ,it only unzips the contents at programfiles/Samsung/drivers
then you can check this thread to install them spesifically http://forum.xda-developers.com/showthread.php?t=1901617
..In short.
Go to
"Device Manager"
find
"Android 1.0" or something like that (i had my device in fastboot/bootloader mode, dont know if it was necessary)
install drivers from the drivers directory and install
P.S. Mine is an ordinary 9023nexus s (slcd) though
be a bit more careful with nexus s4g

[Q] Stuck in bootloader with non-working power and volume buttons

I restored a backup with TWRP and am now stuck booting to the bootloader. To make things worse neither by volume buttons or my power button works so I can't get back to recovery.
The bootloader screen says Fastboot Mode at the top in red letters but I cannot gain usb access to reflash a new rom. Is there something I need to do to enable USB in the bootloader (I have the SDK and drivers installed on my PC already) or could my usb connection also be busted

Type from CMD:
fastboot devices
Click to expand...
Click to collapse
That should get you some info. If it doesn't work, your computer isn't set up properly.

Ted Mosby said:
Type from CMD:
That should get you some info. If it doesn't work, your computer isn't set up properly.
Click to expand...
Click to collapse
Nothing comes up which makes me think the usb connection is busted as well. I dropped my phone a few weeks ago which ended up breaking my power and volume buttons but now that I think about it I haven't used the usb data connection since then so I wouldn't know if something happened to that too. I can still charge my phone though. adb/fastboot are set up correctly because I've used it from my PC before. When I'm in the bootloader and plug the usb it doesn't show up on my pc so I think the drop broke it too

Screen turns off after entering PIN

Hello guys,
I just replaced screen on my 64GB OPO. Phone was fine before screen broke and I had a PIN lock on it. Now, when I turn on phone, I cannot do anything on my phone besides pulling down notification bar and swipe notifications. If I try to unlock by entering my PIN, screen turns off right after. If I enter wrong PIN, it will say Wrong PIN, but as soon as I enter right PIN, screen turns off.
I'm not sure why this is happening. I decided to boot into recovery and reflash the ROM. I hold Power + Vol Down, but phone starts booting normally, no recovery. Then, I try to go into Fastboot by Power + Vol UP, and phone boots normally, no fastboot. At this point, I cannot access recovery or fastboot. Then, I try ADB on laptop, I get "Unauthorized." I can't authorize ADB RSA dialog on my phone because as I said, when I enter my PIN to unlock my phone, screen turns off. Recovery, Fastboot, and ADB worked perfectly before replacing screen.
Anyone know how to fix this?. Thank you
TL;DR:
Replaced screen. Entering my PIN turns screen off immediately. No recovery, No fastboot, ADB gives "Unauthorized" Error.

xymic said:
Hello guys,
I just replaced screen on my 64GB OPO. Phone was fine before screen broke and I had a PIN lock on it. Now, when I turn on phone, I cannot do anything on my phone besides pulling down notification bar and swipe notifications. If I try to unlock by entering my PIN, screen turns off right after. If I enter wrong PIN, it will say Wrong PIN, but as soon as I enter right PIN, screen turns off.
I'm not sure why this is happening. I decided to boot into recovery and reflash the ROM. I hold Power + Vol Down, but phone starts booting normally, no recovery. Then, I try to go into Fastboot by Power + Vol UP, and phone boots normally, no fastboot. At this point, I cannot access recovery or fastboot. Then, I try ADB on laptop, I get "Unauthorized." I can't authorize ADB RSA dialog on my phone because as I said, when I enter my PIN to unlock my phone, screen turns off. Recovery, Fastboot, and ADB worked perfectly before replacing screen.
Anyone know how to fix this?. Thank you
TL;DR:
Replaced screen. Entering my PIN turns screen off immediately. No recovery, No fastboot, ADB gives "Unauthorized" Error.
Click to expand...
Click to collapse
https://forum.xda-developers.com/oneplus-one/general/tool-oneplusrecovery-tool-v1-0-restore-t2991851
You can use this,it does not uses fastboot and instead uses hardware debugging port.
Also using this on Xp system will make it easier to detect the device.

Mr.Ak said:
https://forum.xda-developers.com/oneplus-one/general/tool-oneplusrecovery-tool-v1-0-restore-t2991851
You can use this,it does not uses fastboot and instead uses hardware debugging port.
Also using this on Xp system will make it easier to detect the device.
Click to expand...
Click to collapse
I looked at that tool before I made this thread and in 3rd step, it says to press Power + Vol Up? Doesn't that mean you have to be in fastboot? Anyway, I tried it in Windows 10 and it didn't do anything. My phone gets detected by my laptop and everything. I will try in Windows XP and see if anything changes.

xymic said:
I looked at that tool before I made this thread and in 3rd step, it says to press Power + Vol Up? Doesn't that mean you have to be in fastboot? Anyway, I tried it in Windows 10 and it didn't do anything. My phone gets detected by my laptop and everything. I will try in Windows XP and see if anything changes.
Click to expand...
Click to collapse
No, power+vol+ is actually done to trigger the qualcomm port,if your device can't boot to fastboot,it means it's actually dead then your pc should be able to detect it as "Qhs_bulk" or "usb qcom diagnostics 9006".
Make sure you install the drivers given in the thread or Qualcomm 2012 drivers.Again this procedure doesn't work on fastboot/adb drivers!
You'll have to disable driver signature check on win8/10,Xp works without any issues.

Mr.Ak said:
No, power+vol+ is actually done to trigger the qualcomm port,if your device can't boot to fastboot,it means it's actually dead then your pc should be able to detect it as "Qhs_bulk" or "usb qcom diagnostics 9006".
Make sure you install the drivers given in the thread or Qualcomm 2012 drivers.Again this procedure doesn't work on fastboot/adb drivers!
You'll have to disable driver signature check on win8/10,Xp works without any issues.
Click to expand...
Click to collapse
Oh ok. I will try soon. I'll report back with results.
Thanks for your help man!

xymic said:
Oh ok. I will try soon. I'll report back with results.
Thanks for your help man!
Click to expand...
Click to collapse
Click "Thanks" button

Huawei P9 Mini lite problem (Boot loop, no able to use recovery)

Hello.
I am Finnish, so I try to tell my problem with correct english.
I have a Huawei P9 Mini Lite phone with Android 7, stock ROM. I unlocked the bootloader. I tried to install custom recovery, TWRP, but it failed, must have been wrong version, for other P9 model. I used Windows software just for for Huawei phones, that you can use to unlock, relock bootloder, root, and many stuff (I cannot remember the name of that software, it works in command prompt window). Situation was kind of messy, but after unlocking, I was able to boot phone to Android OS, only entering eRecovery first, and there press the "reboot" option. So I thought if I relock the bootloader, it maybe helps. After relocking, I rebooted my phone, and I got notification, that there is some problem with file system, and I must do factory reset. It offered me that option right away, so I clicked factory reset. After that, phone went into boot loop state, and also there is a warning screen, about that phone cannot be trusted, because of bootloader is unlocked-relocked. Cannot remember clearly, because the warning screen appears only for few seconds. I was able to press power, vol up/down buttons, that are mentioned in warning screen to enter recovery or continue etc., but it doesn´t help. Huawei logo appears, phone vibrates, and then it starts again... I cannot enter eRecovery anymore. I can enter to normal stock recovery only when I connect USB cable to PC, and press power and vol down, but there is no options to anything. Only notification, that I must connect phone to computer with USB cable, and I did that already. But computer doesn´t recognize my phone, so I cannot do nothing by using computer to try factory reset or something else. In a simple way, I have drivers on my PC for USB, and Huawei software too, but I cannot connect phone to PC. Interesting thing is, that Huawei software on my PC recognizes that there is my phone, when I use USB cable, but there is no connection between phone and PC. So how I can do anything to my phone, when I cannot use my PC to work with my phone? Battery is not removable, and I also let my battery to go empty, and when I connected phone to charger after that, and later tried to turn it on, boot loop started again.

[WANTED!!!] TWRP port for Huawei SLA-L02
Hi and welcome to this forum.
I apologize for the late reply. In the meantime, did you resolve the issue?
Is your device a Huawei SLA-L02?
If you still need help for the above-mentioned smartphone, let me know.
Thanks and greetings

can you please help me I need help because this is happening to me and can you please respond fast

Simon Šircelj said:
can you please help me I need help because this is happening to me and can you please respond fast
Click to expand...
Click to collapse
You can follow this guide.
Make sure that the build number ends in an even number (if your phone is a dual-sim model). For example, SLA-L22C432B150
In order to recover Android properly, it's necessary to discover which build number is installed now on your phone. So please, turn off your phone. Plug your phone to a computer by a usb cable, then hold down simultaneously the volume down button and the power button, so that the FASTBOOT&RESCUE MODE can start on your phone. Then, on Windows, run a command prompt as administrator and move to the directory where there are fastboot and adb.
Now, type and enter the following command:
Code:
fastboot oem get-build-number
Then, post the returned result, thanks.

Razer Phone stuck on splash screen

Hey, i have a really big problem. My Friend has a Razer Phone 1 and had magisk install on it. He did not want it anymore so he could use his online banking app. He opend the magisk app and clicked deinstall. Than it booted to TWRP and he restarted it. It was still booting to TWRP. So he startet the bootloader and did a factory reset. But now it's not doing anything. It just sits there in there on the splash screen. It's not saying anything about it that it has a unlocked bootloader. He did not lock the bootloader. I have downloaded the newest version from razer but i cannot use it because i cant go to the bootloader anymore. I tried to restart it but with no luck. Has anybody an idea on what can i try? He realy needs his phone.
Thanks.

Just ruling out some fundamental issues, did you plug in a USB cable to connect your Razer Phone to your computer (if you did, try another USB cable and/or another computer/even connect to another phone), Power Off the Phone, then turn it on and immediately press and hold the Volume Down button for Download Mode (or hold the Volume Up button for Recovery Mode).
EDIT: btw, opposite from what your friend did, I have Magisk installed so I can use banking apps. not sure why he wants to remove it.

OeTeJuNiOr said:
It just sits there in there on the splash screen. It's not saying anything about it that it has a unlocked bootloader. He did not lock the bootloader. I have downloaded the newest version from razer but i cannot use it because i cant go to the bootloader anymore.
Click to expand...
Click to collapse
Hold down Vol Down and Power until you can manage your way back into Fastboot/Bootloader mode and reflash everything from the system images provided by Razer.
At some point you should be able to interrupt the bootloop to be able to get the Vol Down button being held down recognized that the phone should go to Fastboot.