ADB not working on Recovery/Fastboot mode. - Android Q&A, Help & Troubleshooting

I am trying to root my old phone Samsung Galaxy core prime G360h so that I can gain some confidence to change the stock rom of my main device. When the phone is on, adb works perfectly and recognise the device. I can even reboot device when the phone is unlocked. But once I go into Fastboot/Recovery mode then ADB fails to find the device and no commands work(.To the best of my knowledge, I have all the necessary drivers. I have tried multiple USB slots, multiple computers (Windows 7 sp1 and Windows 10 latest update), and have searched all around the internet and various forums on XDA for an answer. I've tried manually updating the USB drivers through device manager, installed universal usb driver, but that did nothing. What I don't understand is that how ADB works when the device is on but don't work when it's in Recovery/Fastboot mode. I would have post images to clear things but the site is not letti g me to post imaves
tldr: adb recognize phone when it's on but Adb don't work in fastboot/recovery mode
Thanks in advance for any help, I've tried everything I can think of.

On MediaTek devices you need Preloader VCom Driver so your PC would detect your phone on fastboot but on Qualcomm ( which is your phone chipset ) i don't know what driver is required ...

Related

[Help!] Cannot get ADB to recognize device

Hi, I have a BLU Advance 4.5 4G phone and I need to be able to use it for testing the apps I develop. I have enabled developer mode and enabled USB debugging, and I have verified that a driver is installed for the device, but adb doesn't recognize the device.
Thanks!
Have you updated the drivers to the Google USB drivers? Normally, adb wouldn't work with drivers installed from device.
Guides on how to are easily found, just search.

Bricked Device with USB Debugging Disabled

Hey all.
I use a Redmi Note 3 (Snapdragon) and upto now I used CM13. I wanted to switch back to MIUI 8, as it supports LTE, so I tried to flash the MIUI ROM using TWRP. My device bricked and doesnt go past the loading screen. The bootloader also got locked and my device is also not being detected in adb command prompt. In device manager, I can only see ADB Bootloader driver but not any other. I tried installing ADB drivers again but it doesnt work. I believe I did not enable USB debugging. I have a TWRP backup of the previous ROM on my pc but is there any way to flash it?
Please help
Hi , I am new to xda and was previously viewing the posts of other users only, now I have an issue with one of my devices. I have a phicomm passion 660 in INDIA AKA Phicomm P660 in Europe.issue is the digitizer is broken ,USB debug is not enabled, ADB and Fastboot doesn't recognise the device as it appears to be issue with Google USB drivers( which is obvious due USB debug not enabled), all I want to do is use optical mouse to use the device again for DEDICATED VR VIEWING, I can boot the device to Fastboot and in normal boot the pc recognises the device as MTP, I tried steps from many other posts but since the device is not recognised by ADB , the result is ground zero,cant install cwm through sdcard due signature verification error.so any help or direction to relevant posts would be very helpful

Fastboot not detecting device

For whatever reason fastboot on my PC (win10) doesn't detect my phone, adb detects it fine when it's in recovery or booted normally, I cannot send fastboot commands as it says waiting for device. I've tried a few things like the LG Mobile Driver and a universal driver but it still isn't working. Any ideas?
Just to clarify I am in Fastboot mode when trying this.
Edit: Also tried the Google USB drivers from the SDK manager, didn't make a difference
I ended up simply doing it on an Ubuntu installation. Works perfectly on there, not sure why Win10 doesn't work though.
My problem is solved.

Pc does not recognize moto x4 in fastboot mode

Hello everyone, before I decide to create a topic in the community I want to report that I tried "everything" to solve my problem, I searched the internet for solutions and nothing, I believe that I will have a light here.
My moto x4 device with android 9 is recognized by the pc when it is on, but in fastboot mode the pc is unable to recognize it, I have already downloaded all the necessary drivers, tested on two different PCs, used all the USB ports, installed the ADB and FASTBOOT, gave the command via cmd to restart in the fastboot, but it simply seems that nothing I do is able to fix this, in the device manager the following information appears:
unknown usb device (device descriptor request failed)
I've tried to update and uninstall, but nothing happened too, remembering that when the device is on it works perfectly on USB.
My operating system is windows 10.

[Please help] OnePlus X bricked, not detected by computer

Hello,
I am left with a OPX with no ROM, and no bootloader (after trying to upgrade TWRP). It shows the Oneplus icon, and Fastboot mode works.
I'm trying to access the device through adb or fastboot, but my computers can't detect nothing.
I installed Qualcomm drivers, ADB & Fastboot, Oneplus USB drivers. I tried to connect my OPX with Fastboot, and with "volume up" plugging (as shown in the mega unbrick guide), nothing shows up in the device manager.
What can I do ?
Thank you very much.
NOTE : I was not in developer mode on the last ROM installed ...
Since fastboot works it seems that your PC or maybe the conection might be the problem here.
Have you tried different cables, USB ports, different computers or different Operating Systems?
Could your MicroUSB Port be broken?
( You could give Ubuntu a shot. It might take a little time to install, but it's free and if you can save your phone with it it could be worth the time. You can also unbrick your device under Linux once you successfully connect it in EDL mode. )

Categories

Resources