Database Users

[Q] ADB error:device not found

Hi, im trying to set up adb on my windows 7 computer and i have installed the update packages but when i try a command to my phone i get an error saying "error: device not found" even tho i have it connected via usb and i have debugging on. How can i fix it?

theminikiller said:
Hi, im trying to set up adb on my windows 7 computer and i have installed the update packages but when i try a command to my phone i get an error saying "error: device not found" even tho i have it connected via usb and i have debugging on. How can i fix it?
Click to expand...
Click to collapse
plug the phone, open a terminal as administrator/root and type
adb stop-server
adb start-server
adb devices
the last command must return your device name-id
If not there is smth wrong with your installation

The device didn't show up do you know what I could have done wrong? Do I have to turn on mass storage? Could it have something to do with my drivers, can't remember installing any... And in the device manager I see four android with a orange triangle with am exclamation mark inside.
Sent from my U8800 using Tapatalk 2

theminikiller said:
The device didn't show up do you know what I could have done wrong? Do I have to turn on mass storage? Could it have something to do with my drivers, can't remember installing any... And in the device manager I see four android with a orange triangle with am exclamation mark inside.
Sent from my U8800 using Tapatalk 2
Click to expand...
Click to collapse
No you don't need to enable mass storage, but you need to enable USB debugging from dev settings from the device. Use these drivers
https://www.dropbox.com/s/ryn7l7z0nfc842g/u8800_pc_drivers.zip

emmm... feeling kinda stupid right now... but how do i install the drivers? xD

theminikiller said:
emmm... feeling kinda stupid right now... but how do i install the drivers? xD
Click to expand...
Click to collapse
You have to install them manually from device manager.
Sent from my U8800

After i choose the folder with the drivers i only get a message saying it didnt find any drivers. Do you know why i cant install them?

Is it the same drivers when I'm using aurora ics as gingerbread roms?
Sent from my U8800 using Tapatalk 2

theminikiller said:
Hi, im trying to set up adb on my windows 7 computer and i have installed the update packages but when i try a command to my phone i get an error saying "error: device not found" even tho i have it connected via usb and i have debugging on. How can i fix it?
Click to expand...
Click to collapse
I had the same issue. This tutorial worked for me: http://goo.gl/OS3Vi
Hope it helps

kross666 said:
I had the same issue. This tutorial worked for me: http://goo.gl/OS3Vi
Hope it helps
Click to expand...
Click to collapse
Thanks alot! That worked perfectly, now i can start using adb on my phone xD
btw i have a question for adb... what does reboot to download mode mean? is that pink screen?

theminikiller said:
Thanks alot! That worked perfectly, now i can start using adb on my phone xD
btw i have a question for adb... what does reboot to download mode mean? is that pink screen?
Click to expand...
Click to collapse
I think its safe mode
Sent from my Impulse 4g running vPure Professional CM7.

kross666 said:
I had the same issue. This tutorial worked for me: http://goo.gl/OS3Vi
Hope it helps
Click to expand...
Click to collapse
Thank you the instructions in the link provided worked for me. I am able to see my listed by adb device command...

help
i have been trying to root my acer iconia tablet A100 for a week now, i ve tried and followed a dozen of ways. this is were it has brought me,
Device connected. Preparation for executing of the main script.
mkdir failed for /data/local/tools, Permission denied
push: tools/su -> /data/local/tools/su
failed to copy 'tools/su' to '/data/local/tools/su': No such file or directory
Unable to chmod /data/local/tools/*: No such file or directory
remote object '/data/local/tools/mempodroid' does not exist
The file "mempodroid" isn't created!
-
Not getting root!
-
Error!
-
Press any key.
please help me, what did i do wrong
thanks in advanced

jakk181571 said:
i have been trying to root my acer iconia tablet A100 for a week now, i ve tried and followed a dozen of ways. this is were it has brought me,
Device connected. Preparation for executing of the main script.
mkdir failed for /data/local/tools, Permission denied
push: tools/su -> /data/local/tools/su
failed to copy 'tools/su' to '/data/local/tools/su': No such file or directory
Unable to chmod /data/local/tools/*: No such file or directory
remote object '/data/local/tools/mempodroid' does not exist
The file "mempodroid" isn't created!
-
Not getting root!
-
Error!
-
Press any key.
please help me, what did i do wrong
thanks in advanced
Click to expand...
Click to collapse
this is not the forum for ur device..

then please tell then where is the correct forum.
i only when to this one because google brought me here, and it was on adb, which is what i am have trouble with.

Re: Adb - device not found (I had same problem) Fixed
theminikiller said:
Hi, im trying to set up adb on my windows 7 computer and i have installed the update packages but when i try a command to my phone i get an error saying "error: device not found" even tho i have it connected via usb and i have debugging on. How can i fix it?
Click to expand...
Click to collapse
I had the same issue updating my Nexus 7 in adb download mode device not found. You will also notice in system setting device driver is showing an error. You can download Adb driver installer which should detect any missing driver and fix the issue.
It worked for me straight away otherwise I had no way round getting to solve the problem. Fheww!! hope it works for you
Many Thanks.
adbdriver.com/downloads
---------- Post added at 05:55 PM ---------- Previous post was at 05:43 PM ----------
You may be missing the device driver when switching to USB Debugging mode using ADB Command prompt device not found.
Please download and intsall adb driver installer. It found my device and installed missing driver straight away problem fixed now I dont seem to have any issue.
adbdriver.com/downloads/
Glory be to Almighty God. Thank you!!

theminikiller said:
Hi, im trying to set up adb on my windows 7 computer and i have installed the update packages but when i try a command to my phone i get an error saying "error: device not found" even tho i have it connected via usb and i have debugging on. How can i fix it?
Click to expand...
Click to collapse
same problem...

Get in to Fastboot

the fastboot cable does not work with a fire hd 6/7
i can tell you how to get in fastboot without a fastboot cable!
What You Need:
Google SDK (Or adb driver and adb command)
USB Debugging (ADB)
Fastboot Driver (HTC Dream Fastboot Driver)
Link To HTCMania Driver Installer: bit.ly/1w0V5eK
Now connect your Fire and type in your shell or command line:
adb reboot-bootloader
Happy Fastboot!

Well I tried this and now I have a black screen and cannot power my fire hd 7 4th generation.
Edit* I was able to power it back on by holding down the power button for 30 seconds. Got scared for a second.

junglistknot said:
Well I tried this and now I have a black screen and cannot power my fire hd 7 4th generation.
Edit* I was able to power it back on by holding down the power button for 30 seconds. Got scared for a second.
Click to expand...
Click to collapse
You Need to install the Fastboot Driver
i post the link soon i don't know the link yet

hold power and volume up or volume down. font remember which. It will reboot after a few seconds.

Any luck with a link for the fastboot driver? I have a fastboot cable and firerooter which should work. But I can never get fastboot to recognize my fire hd 7. I tried to manually install the driver for MT65XX Preloader by adding the hardware ID of the the Fire HD 7 but windows tries to install the driver but then it says failed because it was unplugged.

I don't think you want to try fire rooter... I'm pretty sure that if it is successful you will have a paper weight.
Fire rooter is for the kfsowi kindles.
Sent from my XT907 using XDA Free mobile app

The new version was released and the Fire OS 4.0 is supported. GranPC tested it with a Fire HD 6 and it is working. I have to wait a few days for a new factory cable to come in to try anything else because my dog just broke my factory cable by yanking it out of my computer.

junglistknot said:
The new version was released and the Fire OS 4.0 is supported. GranPC tested it with a Fire HD 6 and it is working. I have to wait a few days for a new factory cable to come in to try anything else because my dog just broke my factory cable by yanking it out of my computer.
Click to expand...
Click to collapse
Please indicate the source of Gran PC testing it on Fire HD 6.
Gran PC
- Dec 27, 2014
Device Support
We ONLY support the Kindle Fire HD 7" 2013 (soho, KFSOWI). No other devices are supported. You need a fastboot cable in order to root your Kindle. Other devices are probably rootable but I do not have any. If you are interested in giving me one, email me at [email protected]. If you decide to give me one, I MAKE NO GUARANTEES that I will be able to do anything -- it all depends on how much free time I have.
Developers: Firerooter is open source. Feel free to poke around and port it to your own device. If you do get it working it would be really cool if you were to credit me. Firerooter is MIT licensed, so that means you can sell it or give it away as long as you keep the copyright notice in the license file.
DO NOT POST ABOUT ANY NON-SOHO DEVICES IN THIS COMMUNITY. YOUR POST WILL BE REMOVED AND IGNORED
Click to expand...
Click to collapse
Source: Device Support

The fastboot driver for the Fire hd 6 / 7 are the same as the HTC Dream Driver
Link To HTCMania Driver Installer: bit.ly/1w0V5eK

Any progress on root buddy?

Polochamps said:
Please indicate the source of Gran PC testing it on Fire HD 6.
Source: Device Support
Click to expand...
Click to collapse
I think he's talking about this:
https://plus.google.com/114394427275904523996/posts/X5jhqhX4p6A

Yeah I misread that post sorry for the confusion.

Anyone know if a fastboot cable works

My Fire HD 7 (4th gen) currently doesn't have a working recovery or OS.
I get this error when trying the command on the "amazon" screen-
Code:
C:\>adb reboot-bootloader
error: device unauthorized.
This adbd's $ADB_VENDOR_KEYS is not set; try 'adb kill-server' if that seems wrong.
Otherwise check for a confirmation dialog on your device.

I have tried a few times to run this.
This it what it says in my CMD
lug in your device with a USB data cable.
Please enable ADB debuging in the developer options (Tap Serial Number in Device Options 20 times if it is hidden)
and unlock your device to the homescreen. This script will root your device.
make sure all adb and fastboot drivers are installed if you have problems.
ACCEPT THE PROMPT ON YOUR DEVICE TO ALLOW USB DEBUGGING!
MAKE SURE "ALWAYS ALLOW" IS CHECKED IF THE PROMPT SHOWS!
Press ENTER when you have followed the above steps.
Press any key to continue . . .
adb server is out of date. killing...
* daemon started successfully *
Installing Google Play
4353 KB/s (29005099 bytes in 6.506s)
pkg: /data/local/tmp/com.google.android.gms-6.6.03_(1681564-036)-6603036-minAPI9.apk
Success
4317 KB/s (5716290 bytes in 1.293s)
pkg: /data/local/tmp/GoogleLoginService.apk
Success
3995 KB/s (2360070 bytes in 0.576s)
pkg: /data/local/tmp/GoogleServicesFramework.apk
Success
3863 KB/s (13859135 bytes in 3.503s)
pkg: /data/local/tmp/com.android.vending-5.9.12-80391200-minAPI9.apk
Success
Running exploit
< waiting for device >
...
FAILED (remote: unknown command)
finished. total time: 0.023s
resuming boot...
OKAY [ 0.016s]
finished. total time: 0.017s
Do not disconnect the device.
Please wait...
If it hangs here, please accept the USB debugging prompt on your device.
remount of system failed: Permission denied
remount failed
remount of system failed: Permission denied
remount failed
remount of system failed: Permission denied
remount failed
override rwxrwx--x root:root for '/data/dalvik-cache'?
Click to expand...
Click to collapse

How do you get to fastboot on OSX, any ideas ?

junglistknot said:
Well I tried this and now I have a black screen and cannot power my fire hd 7 4th generation.
Edit* I was able to power it back on by holding down the power button for 30 seconds. Got scared for a second.
Click to expand...
Click to collapse
Happened with me to LOL i actually had brown in my pants XD

[HELP] Problem while enabling Camera2 API

I want to enable Camera2 API so i can use GCam
so for doing that i turned on Usb Debugging and went into fastboot to enable Camera 2 API
but it is stuck on <waiting for devices>,
HTML:
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem enable_camera_hal3 true
< waiting for any device >
Normal usb debugging is working fine shown as:
HTML:
C:\Program Files (x86)\Minimal ADB and Fastboot>adb devices
List of devices attached
J7AAB7602858KJ3 device
What should i do to get it working?

Install the fastboot drivers from device manager in pc.

paradise220 said:
Install the fastboot drivers from device manager in pc.
Click to expand...
Click to collapse
Done but did not help.
Can u elaborate the way a bit, cause i might have done it wrong

Flamester said:
Done but did not help.
Can u elaborate the way a bit, cause i might have done it wrong
Click to expand...
Click to collapse
Right click My Computer
Select Manage
In the window choose Device Manager
You should find your phone in one of the categories
Right click the phone
Select Update driver
Update from the internet
Sent from my ZenFone Max Pro M1 using XDA Labs

I too have a problem in enabling of camera 2 API with adv
I have enabled usb debugging
I have installed latest drivers from device manager
After I type the command to fastboot camera 2 API it shows waiting for device
I tried this after the October Google security update which I got today.
Please provide a solution if present
Thank you

Prasidda said:
I have enabled usb debugging
I have installed latest drivers from device manager
After I type the command to fastboot camera 2 API it shows waiting for device
I tried this after the October Google security update which I got today.
Please provide a solution if present
Thank you
Click to expand...
Click to collapse
Try manually update driver while phone is in Fastboot mode.

Thank you
Now I have enabled cam 2 API
But slow motion is not working with Google camera.should I do anything?

Prasidda said:
Thank you
Now I have enabled cam 2 API
But slow motion is not working with Google camera.should I do anything?
Click to expand...
Click to collapse
No. It's not camera 2 API problem. slow motion is not available yet in Google camera ports.

Thank you for the clarification.

I still don't get it, what do you mean by manually updating the driver? Do you use the Search automatically for updated driver software or do you use the Browse my computer for driver software ? If you use Search automatically for updated driver software it says the device is up to date, but if you use Browse my computer for driver software which file should i choose

Unable to unlock bootloader

I've read the threads about unlocking bootloader in the redmi note 7, but none of them helped.
So the main problem is whenever I connect redmi into PC, it's recognized, but when I enter Mi Unlock app (miflash_unlock-en-3.5.1128.45), the phone is showing in left-up corner "..key to shutdown" (I can't see anything before key) and it's unmounting from PC.
I tried connecting it in many moments, but the result is the same. I tried also installing drivers from xiaomi, that you can install through the app itself, but it didn't change the results.
I've installed ADB app and drivers (as shown here: https://forum.xda-developers.com/showthread.php?t=2588979) and connected my device to mi account.
As in the thread on https://forum.xda-developers.com/redmi-note-7/how-to/one-redmi-note-7-unlock-bootloader-t3890751 I tried to check via ABS if my device is listed and there is the output:
C:\adb>fastboot devices
afd9005 fastboot
C:\adb>fastboot oem device-info
...
FAILED (command write failed (Unknown error))
finished. total time: 0.005s
Click to expand...
Click to collapse
And the device goes into that mode like from mi unlock app
I'm posting below the link to the screenshots of my phone's settings, os version and things that I've read could help (I don't know how to insert photos in the post other way).https://we.tl/t-O3Z7H6AABu
I've been fighting with it for too long... Maybe someone encountered this problem and/or is able to provide the fix.

You can see help here https://forum.xda-developers.com/redmi-note-7/help/fastboot-issues-t3964100
Should to try another PC or use a 2.0 USB HUB. I also have same problem with my laptop (core i3 with USB 3.0 port) but it's OK on an older PC (without USB 3.0)
Update: Hi, I found a better way to fix this problem. I did with my Dell 14 5447 (with Intel chipset and Windows 7). I uninstalled Intel(R) USB 3.0 eXtensible Host controler in Program and Features. And then download and install a newer driver from Intel (https://downloadcenter.intel.com/do...100-Series-and-Intel-C220-C610-Chipset-Family).

gazavn said:
You can see help here https://forum.xda-developers.com/redmi-note-7/help/fastboot-issues-t3964100
Should to try another PC or use a 2.0 USB HUB. I also have same problem with my laptop (core i3 with USB 3.0 port) but it's OK on an older PC (without USB 3.0)
Click to expand...
Click to collapse
Oh I didn't try with USB 2.0. I have one in Mobo, so on few hours I'm going to tell if it fixed the issue

gazavn said:
You can see help here https://forum.xda-developers.com/redmi-note-7/help/fastboot-issues-t3964100
Should to try another PC or use a 2.0 USB HUB. I also have same problem with my laptop (core i3 with USB 3.0 port) but it's OK on an older PC (without USB 3.0)
Click to expand...
Click to collapse
On my main PC plugging into a USB 2.0 on back panel didn't work, neither on my dad's PC, that have in the front panel USB 2.0.
So I opened the whole thing now on the laptop without USB 3.0 drivers installed. I installed win7 and I didn't have option in driver selection "Android", so I installed xiaomi drivers and just plugged the phone. AND IT WORKED! Now I just have to wait 102 hours XD
I have 2 modules inside my laptop that are connected to motherboard (1st include 2.0 usb, and 2nd 3.0, both on different sides of laptop), so they're in some way separated. I don't know how it would behave if I installed the drivers, but for now I'm not checking it.
Thanks you for help, I would never come up with that fix!
Just leaving the specs if it's caused by hardware and for someone who has the same:
i5-8400
B360M pro-vdh
Probably not improtant in this case, but just in case:
GTX 1060 3GB
16GB ram ballistix sport lt

=Terys;81704493]On my main PC plugging into a USB 2.0 on back panel didn't work, neither on my dad's PC, that have in the front panel USB 2.0.
So I opened the whole thing now on the laptop without USB 3.0 drivers installed. I installed win7 and I didn't have option in driver selection "Android", so I installed xiaomi drivers and just plugged the phone. AND IT WORKED! Now I just have to wait 102 hours XD
I have 2 modules inside my laptop that are connected to motherboard (1st include 2.0 usb, and 2nd 3.0, both on different sides of laptop), so they're in some way separated. I don't know how it would behave if I installed the drivers, but for now I'm not checking it.
Thanks you for help, I would never come up with that fix!
Just leaving the specs if it's caused by hardware and for someone who has the same:
i5-8400
B360M pro-vdh
Probably not improtant in this case, but just in case:
GTX 1060 3GB
16GB ram ballistix sport lt
My pleasure.

Redmi Note 7S USB Connection Issue

Device: Redmi Note 7s with MIUI Global 12.5.1 Stable version. I have never rooted or unlocked device. Developer mode is enabled.
Problem: My phone is not being recognized by any laptop / PC even OTG is not working. After connection to PC, it only charges. I don't even receive any notificaiton on phone. Error received in PC is "USB device malfunctioned". Error in device manager "Unknown USB Device (device descriptor request failed).
Already Checked:
*Debugging mode is enabled.
*Default USB configuration set to "File Transfer".
*Already tried Uninstalling / reinstalling USB Root hub / device marked as unknown USB device
*Already tried reinstalling USB drivers .
*Device USB connector and Main board already replaced but no change.
*Tried different cables (including MI original data cables).
*Tried different PC / Laptops (Windows 10 / 11).
It seems to be an MIUI settings issues. Please advice on how to resolve this.

Hello, have you tried disabling USB debugging to see if it'll work. And also, try USB tethering of internet, just for trial and error.

ernestowolabi said:
Hello, have you tried disabling USB debugging to see if it'll work. And also, try USB tethering of internet, just for trial and error.
Click to expand...
Click to collapse
Already tried...same results. still not working

puneetk77 said:
Already tried...same results. still not working
Click to expand...
Click to collapse
Usb 3 port? Change to 2

puneetk77 said:
Already tried...same results. still not working
Click to expand...
Click to collapse
I have already done all these.... it is for sure a MIUI settings issue.

puneetk77 said:
I have already done all these.... it is for sure a MIUI settings issue.
Click to expand...
Click to collapse
U clean the usb port of your phone?

puneetk77 said:
I have already done all these.... it is for sure a MIUI settings issue.
Click to expand...
Click to collapse
"How to Clean the USB-C Port on Your Phone or Laptop" https://www.businessinsider.com/how-to-clean-usb-c-port?amp

try that https://forum.xda-developers.com/t/solved-usb-mtp-issue.4392555/