Database Users

[Q] How to sideload kernel with USB Debugging enabled?

Hi all,
I greatly need your help or some advice. I searched for more than 6h yesterday and Im surprised I couldnt find a solution to my problem.
Typical stuff : I broke the screen of my Nexus 4, that is completely stock 5.0.1. The phone is unrooted, bootloader is locked and obviously USB Debugging is disabled.
I need to backup some data from my phone : pictures, notes and if possible my contacts.
When I connect my phone via USB to my PC, I cant browse my files since my screen is locked. My screen is not responding at all, so no way I can unlock it. Only thing I can do is install new applications on my phone, but no way to launch them since I'd need to unlock my screen again.
I have installed adb and fastboot in order to try and use Android Screen Control, but I dont have USB Debugging enabled.
So I read that I could sideload a kernel that has USB Debugging enabled by default.
I got into Recovery Mode, and tried sideloading a zip file containing a Kernel found on the forum, but I always get an error saying the footer is wrong and the signature of the file didnt pass verification. I guess I can only sideload OTA updates ?
I tried fastbooting CWM recovery, that also didnt work.
adb devices command lists my 'recovery' device.
At this stage, all I need is to either be able to unlock my phone so I can access my files via USB (i tried few apps without success), or to enable USB debugging so I can connection using sideload, use Android Screen Control, reset the pattern lock, and backup my phone.
Also, USB OTG isnt enabled by default on Nexus 4, so that's another dead-end
So what are my options ? Where could I find a kernel that has USB Debug enabled, and how can I sideload it considering phone is not rooted, and bootloader is locked (unlocking it and whipping data defies the purpose).
THANK YOU for any advice!

There is nothing you can do with a locked bootloader and no custom recovery. Sorry man, but you're not going to be able to access your data.
Sent from my Nexus 9 using XDA Free mobile app

I've exactly the same problem, but my bootloader is unlocked and I'm rooted.
I'm also on a Nexus 4 with 5.0.1 and I'm trying to get control over my device from my Windows PC. But I don't know which kernel to use and how (yet) to enable USB debugging.
Help is appreciated.

Joakim_Lind said:
I've exactly the same problem, but my bootloader is unlocked and I'm rooted.
I'm also on a Nexus 4 with 5.0.1 and I'm trying to get control over my device from my Windows PC. But I don't know which kernel to use and how (yet) to enable USB debugging.
Help is appreciated.
Click to expand...
Click to collapse
All you need is a custom recovery to boot into to access your files. If you don't have one, download the latest version of twrp from here. http://techerrata.com/browse/twrp2/mako
Then flash that using fastboot. If you need help let us know.
Sent from my Nexus 5 using XDA Free mobile app

Hmm, "error: cannot load 'open recovery-twrp-2.3.2.3-mako'.
Sure usb-debugging doesn't have to be enabled?

Joakim_Lind said:
Hmm, "error: cannot load 'open recovery-twrp-2.3.2.3-mako'.
Sure usb-debugging doesn't have to be enabled?
Click to expand...
Click to collapse
You have an ancient version of twrp. Install the latest. I'm positive you don't need usb debugging enabled.
Sent from my Nexus 5 using XDA Free mobile app

Yes, you're so right! I also missed .img in the command
But what kernel would you recommend me to use so I have usb-debugging I can have usb-debugging enabled?

I am in almost completely the same situation! My N4 fell yesterday and shattered at the bottom right hand corner. No the touch screen doesn't work and there are sections of the screen that are black. However, I have...
root
cwm recovery
stock 5.0.1 kernel
windows 7
adb not working
fastboot working
usb debugging disabled
a need for usb debugging to become enabled.
I would like a kernel with usb debugging enabled and instructions on how to install it. Or if you have another fix, instructions on that.

Alternative method to access locked phone w broken screen?

Hi, thanks in advance for helping.
This is the situation.
I want to backup as much as possible items from my phone since it's broken, but:
- The screen is broken
- Device is locked
- USB debugging is DISabled.
I already searched a lot and tried the cmd adb commands to unlock it, but since usb debugging is disabled my device is not found..
I also tried to unlock my device using findmymobile, but somehow it won't unlock it.
I am now able to get Kies to recognize my phone (using recovery mode) and Kies of course noticed my device is locked.
Before I go to the store and buy that OTG cable, I was wondering if there is any way to change the registry of Kies and trick it into thinking my device is not locked. Sorry if this is a really weird question to ask.
OR is there any other way I can unlock my phone from my laptop? I know the pin code, so that is not the problem.
Thanks in advance.

Fastboot Won't Recognise My Nexus 6p

Hi all,
I am trying to root my phone, following this guide: http://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928
However, I am stuck at entering 'fastboot devices' into the command prompt. It will not return my device's serial number. I know this is supposed to be becuase I don't have the correct drivers installed - but I'm pretty sure I do! I've spent hours scouring the internet for solutions and I can't find anything to help. So now I turn to you, please help me
I'm running windows 10.
I've double checked the google usb driver is installed.
I've manually installed the android bootloader interface driver.
The bootloader screen says on my phone says 'Connect USB data cable'. It is already connected and I have tried connecting it to all the ports on my laptop. I'm using the original cable that came with the phone.

Well did you enable USB debugging? I'm assuming you did but you didn't list that in the process you said you did.

Eric214 said:
Well did you enable USB debugging? I'm assuming you did but you didn't list that in the process you said you did.
Click to expand...
Click to collapse
I did indeed. And I also fixed it! I just needed to do some more tinkering. I set the fastboot.exe to recommended defaults. Not sure why it was not already but there you go. You can lock or delete this thread now, thanks!

Nexus 4 - Broken screen, no touch, need to unlock

Dropped phone, cracked screen, screen works but is unresponsive to touch.
Problem: Need to unlock to access data. This seems to be a common problem but I've been reading the forums and still cannot find a solution
Status:
- USB debugging disabled (presumably)
- No OTG support
- Not rooted
- ADB, running adb devices command shows no device
- Booting to android screen shows Secure boot: enabled, Lock state: unlocked (not sure what this means)
I've tried Vysor and k.janku1's tool, both don't work as presumably the USB debugging is disabled.
Is there any way to enable USB debugging? Or is there any way to connect to ADB? Or any way to flash CWM without ADB?
Any help would be greatly appreciated!!

What data you want to access? May be you need to see if you can boot in to fastboot mode, flash a recovery and then take it from there.
If you are able to do that then you can connect your phone to PC and access it as an USB stick.
Nitin

nitin.chobhe said:
What data you want to access? May be you need to see if you can boot in to fastboot mode, flash a recovery and then take it from there.
If you are able to do that then you can connect your phone to PC and access it as an USB stick.
Nitin
Click to expand...
Click to collapse
Thank you!!! I have flashed the CWM recovery and can access it on my phone. Where should i go from there? I have tried 'mount USB storage' but the phone is not being recognized on the computer still, I cannot see the storage. I am trying to access mainly contacts and photos. Thanks again!

Try flashing twrp it has mtp mode

Jellyfishk said:
Thank you!!! I have flashed the CWM recovery and can access it on my phone. Where should i go from there? I have tried 'mount USB storage' but the phone is not being recognized on the computer still, I cannot see the storage. I am trying to access mainly contacts and photos. Thanks again!
Click to expand...
Click to collapse
Your contacts should be synced to your google account. Get them from there.
I do not use CWM as it is not supported these days (although it was my favorite recovery back then). So can't help you. As @[email protected] suggested, flash TWRP.
Nitin

[email protected] said:
Try flashing twrp it has mtp mode
Click to expand...
Click to collapse
nitin.chobhe said:
Your contacts should be synced to your google account. Get them from there.
I do not use CWM as it is not supported these days (although it was my favorite recovery back then). So can't help you. As @[email protected] suggested, flash TWRP.
Nitin
Click to expand...
Click to collapse
Thank you both, TWRP worked and I could connect it as USB storage to my computer!
Another question is, would it be possible to enable USB debugging through adb/CWM/TWRP? So I can use those tools to control my phone via computer.

Jellyfishk said:
Thank you both, TWRP worked and I could connect it as USB storage to my computer!
Another question is, would it be possible to enable USB debugging through adb/CWM/TWRP? So I can use those tools to control my phone via computer.
Click to expand...
Click to collapse
No, that's not possible as far as I know. If I were you, I would have flashed a custom ROM which has USB debugging enabled (Like NitrogenOS)
Don't know how can you flash that without touch. Check if some connector like this allows you to use your mouse with the phone.
Nitin

how to Enable USB Debugging

Hi.
I need help because my Axon7 is bricked.
I first installed JPver ROM, and apply OTA update. But it was bricked.
My Axon 7 stops on logo when I turn on the power.
And I used Miflash to solve the problem, but I do not know how to do one process.
So, I don't know how to Enable USB Debugging.
Is there a way to turn on USB debugging without booting up?
Please help me, and thank you for your help.

core0122 said:
Hi.
I need help because my Axon7 is bricked.
I first installed JPver ROM, and apply OTA update. But it was bricked.
My Axon 7 stops on logo when I turn on the power.
And I used Miflash to solve the problem, but I do not know how to do one process.
So, I don't know how to Enable USB Debugging.
Is there a way to turn on USB debugging without booting up?
Please help me, and thank you for your help.
Click to expand...
Click to collapse
You don't need USB debugging, you have to enter EDL. While the phone is off, hold both volume buttons and insert the USB cable (it has to be already connected on the PC) on the phone at the same time. Then use MiFlash with a FULL_EDL package

Choose an username... said:
You don't need USB debugging, you have to enter EDL. While the phone is off, hold both volume buttons and insert the USB cable (it has to be already connected on the PC) on the phone at the same time. Then use MiFlash with a FULL_EDL package
Click to expand...
Click to collapse
Thanks for your help.
I understood and tried it.
However, an error related to "hello packet" occurred and it failed.
So I will try it on another PC.
Thank you.