N4 bricked, tried several things, don't know what to do next - Nexus 4 Q&A, Help & Troubleshooting

Hello,
For some time the fastboot mode doesn't work on my N4. Neither Recovery, it remains inaccessible. (black sceen)
Recently, I formatted the system partition and android now cannot boot any longer (!).
Download mode works though!
So I followed the tutorial from there to unbrick it:
https://forum.xda-developers.com/nexus-4/general/tutorial-how-to-unbrick-n4-t2347060
But I am stuck at the LGNPST step, because my device doesn't appear in the app. I used a Win10 PC, so maybe there is some kind of uncompatibility with the "a bit old" procedure. I tried all three usb ports of the PC, with no luck.
Now, I don't know what to do next.
Is there some kind of procedure that can work with Linux instead of Windows to restore fastboot mode ?
Thanks a lot!

Have you checked whether your phone is appearing in device manager?
Perhaps Windows did not apply the driver to the device automatically (it happens sometimes).

Related

Driver recognition problem

Hi
As many people here i've encountred a problem with fota while being using a rooted ROM (g.lewarne ROM)
Now my phone is bricked. I can't go into recovery nor Download mode. I only have the LG logo for moments with error: secure booting error!
cause: boot certification verify
When i plug my phone it is not recognized in the hardware manager. I've already installed Drivers.
All i have in the hardware manager is a new hard under name QHSUSB_BULK that needs driver.
I have just one hope to get my phone alive, by reconizing it again by my computer, then maybe i can go under download mode.
I've tried everything but nothing could work without download mode.
PS: I've made a hard reset, which was maybe a silly decision.
By the way, after installing the OTA my phone went into CWM Recovery, it was detectable by adb, i used adb to reinstall TWRP, then i used command
"adb reboot download" instead of "adb reboot recovery", then i had never seen the CWM recovery again, only the mentioned above error.
After few seconds my phone screen goes black but the phone is still on since i can see light at the corners of the phone.
and it is not reachable by adb.
It makes me crazy now.
once i plug it to the computer it gives me plenty drives to format and one drive with only one folder inside called image, only readable, with many files inside.
Could you please help me to get my phone alive?:crying:

[RESOLVED] Need Driver Help getting bootlooped phone to show up in Devices

My son attempted a flash without reading through much.. he had the newest firmware and now it won't boot into anything but TWRP and what i think is download mode (it just shows the LG logo, but I do have adb access). The issue is in these modes, I can't get windows to recognize the device to be able to assign it to port number 41. I can manually pick a driver, but then it only shows up as that driver, not the phone on the devices location in Windows. .. So, the LGFlashtool doesn't recognize it and nothing works. I've even tried assigning it the LGE Android Platform USB Serial port driver, set to port 41 and it still won't work.
Any suggestions? Is there another method from the LGflashtool one detailed? Thank you for any advice! (this experience is enough punishment and a great lesson for my son to learn to READ and follow instructions).
This is for the AT&T model.
FIXED. Through multiple attempts and multiple threads, I ran into this thread:
http://forum.xda-developers.com/showthread.php?t=2451696
I did it through TWRP Terminal. Upon rebooting, I'd see the LG logo super fast and then nothing.. I held down power for some time, then the up volume, plugged in and I HAD DOWNLOAD MODE! whew.
From here, all is well, it shows up on devices and I can push the factory firmware. -Yay for google, yay for XDA and all the resources these forums have pooled together!.
(thanks)

[Q] No Recovery, No Download Mode, Not Recognized in Fastboot mode by PC

Hello there!
So I accidentally bricked my phone a few days ago and now it is resting as a brick on my desk, but how did all of this happen, you may ask?
Well, the story is rather simple, I had the Simple ROM V. 1.4 installed on my G2 and decided to update it to version 2.0, which is posted here somewhere, but what I didn't notice was that the file I was downloading (even though it said it was compatible with all versions) was not for the D800 but for the LS980 and this bricked the phone.
First I was stuck on fastboot mode and was able to get my download mode back, but it kept saying that it couldn't flash the stock rom because it was the wrong model.
Looking online and through these forums, I found out that it was because the download mode that it had was not the right one to use, and that I needed to "destroy" download mode, enter once again in fastboot mode and flash the new download mode, this, however, turned out out to be impossible as the fastboot mode is no longer being detected by Windows nor Linux.
I installed back the USB drivers, installed Android ADB, changed the UDEV rules with mew vendors ID from the list provided by Google, updated the drivers on my PC and even tried to change the directory in which the phone would appear.
The problem resumes to this:
When in fastboot mode (connected to the PC) and type
Code:
fastboot devices
in both Windows and Linux, I get the response as
Code:
???????? devices
.
When I try with
Code:
adb devices
I get back nothing.
Curious thing is that the phone does appear on Device Manager as an Android ADB device and when on Linux I use the
Code:
lsusb
I get back that it is being recognized as
Code:
Google Inc. 18d1 d00d
, which I believe is the phone.
When trying to run any fastboot commands, the phone stays on "waiting for device" on Linux or "flashing" on Windows and later a messages pops back at me with
Code:
Error too many links
.
With all this in mind, I would like to ask you guys, is there something that I am missing?
Any help will be truly appreciated!
PS. Forgot to mention that I have tried with other computers and have the same result and the model of my phone is the D800.
Just to add a bit more into the case.
I had installed prior to all this mess, TWRP which had a Nandroid backup in the internal storage and file backup.
When using the LG Flash tool (KDZ one) I am able to see the available storage, which is about 2.5gb. This leads me to believe that both the Nandroid backup and Backup files are still in the internal storage.
Also, I did some more digging and got information that it might be the USB cable, however, this cable worked fine the first time and with other devices. and while connecting the phone with it to the PC it will still register the device as connected, but apparently no USB port is assigned or fastboot flash tool does not find the phone.

Need Help with hard brick

Well. First things first. the root of the issue is probably a bad usb port i guess as it's very unstable it even sometimes reboots into download mode on its own when i plug my phone to charge or even gives a Not charging state until i replug it many times then it gives the normal charging (AC) so it's a really messy one.
that's the usual anyway i was rooted and flashed a lollipop rom normally then bugged some apps so i decided to reflash stock kitkat rom however like i said it's a bad usb connection so sometimes the flashing goes slowly and i have to replug the cable for it got smoothly again.
this time i noticed this at 15% and instead of staying in download mode stuck at that the phone rebooted and ofcourse this time only a black screen no download mode no recovery no nothing i guess a typical hard brick? this is my first time dealing with a hard brick so i didn't know what to do at all so i'm still figuring out stuff anyway i installed Qcomm drivers and checked the device manager it's the 9006 one not the 9008 and it shows many drives on my pc (windows 7 64-bit) but no partitions in windows xp 32-bit on another pc and on the laptop it gives no drives i think. i tried with SRK tools it says everything as it should but when it's done i unplug the cable then reboot however still shows many partitions and no download mode.
I don't use my phone alot however i don't own another one so i kinda need help fast please so if anyone has any ideas don't hesitate please.
Thanks in advance.:good:
Update: After following the linux method i now don't have a black screen only stuck on lg logo and still no download mode.
the phone isn't recognized by the pc at all not even 9006 or 9006
the recovery gets stuck at processing and it doesn't say fastboot either on the logo screen.
Croshio said:
Well. First things first. the root of the issue is probably a bad usb port i guess as it's very unstable it even sometimes reboots into download mode on its own when i plug my phone to charge or even gives a Not charging state until i replug it many times then it gives the normal charging (AC) so it's a really messy one.
that's the usual anyway i was rooted and flashed a lollipop rom normally then bugged some apps so i decided to reflash stock kitkat rom however like i said it's a bad usb connection so sometimes the flashing goes slowly and i have to replug the cable for it got smoothly again.
this time i noticed this at 15% and instead of staying in download mode stuck at that the phone rebooted and ofcourse this time only a black screen no download mode no recovery no nothing i guess a typical hard brick? this is my first time dealing with a hard brick so i didn't know what to do at all so i'm still figuring out stuff anyway i installed Qcomm drivers and checked the device manager it's the 9006 one not the 9008 and it shows many drives on my pc (windows 7 64-bit) but no partitions in windows xp 32-bit on another pc and on the laptop it gives no drives i think. i tried with SRK tools it says everything as it should but when it's done i unplug the cable then reboot however still shows many partitions and no download mode.
I don't use my phone alot however i don't own another one so i kinda need help fast please so if anyone has any ideas don't hesitate please.
Thanks in advance.:good:
Update: After following the linux method i now don't have a black screen only stuck on lg logo and still no download mode.
the phone isn't recognized by the pc at all not even 9006 or 9006
the recovery gets stuck at processing and it doesn't say fastboot either on the logo screen.
Click to expand...
Click to collapse
You must have flashed wrong version of the rom .
After trying the linux method, if you cant get into fastboot mode, recovery or not in download mode, then try this : http://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404
This requires you to open your phone so be cautious .
Thanks I followed that guide. Download mode after. Using the Windows tool instead of Linux then flash tool normally.

H E L P - bootlooping, COM does not recognize phone

Hi everybody,
ill try to make it short:
My 6p has entered into the bootlooping mode.
I have never unlocked the bootloader/changed ROM/kernal.
After I let it bootloop until the battery is dead it's changing from bootlooping into blinking red dot. Then when I charge it for a couple of minutes it comes back to life after 10~ min it's bootlooping again - so I have a window of possibilities to play with the setting. In that window I have used the "OEM unlocking" option.
In the bootlooping state when I boot into the bootloader and connect it into the PC the device doesn't recognize that it has been connected and a PC ,and the PC recognize a entry of new device but doesn't recognize it is a Nexus 6p.
this situation is the same when I connect the phone when it is alive.
I have installed adb and fastboot with this software
https://forum.xda-developers.com/showthread.php?t=2588979
with the 1.4.3 version it shows in the end of the process "0 files copied" and then I tried the 1.3 version and it showed that 4 files were copied but it also showed an error.
I have also downloaded ADB from google site but it does not work either.
When I try to open the powershell in a folder where I have downloaded an img and type in a fastboot command the computer doens't recognize any type of command.
So if anyone can help me ill be glad.
Thanks in advance,
Matan.
matan4442 said:
Hi everybody,
ill try to make it short:
My 6p has entered into the bootlooping mode.
I have never unlocked the bootloader/changed ROM/kernal.
After I let it bootloop until the battery is dead it's changing from bootlooping into blinking red dot. Then when I charge it for a couple of minutes it comes back to life after 10~ min it's bootlooping again - so I have a window of possibilities to play with the setting. In that window I have used the "OEM unlocking" option.
In the bootlooping state when I boot into the bootloader and connect it into the PC the device doesn't recognize that it has been connected and a PC ,and the PC recognize a entry of new device but doesn't recognize it is a Nexus 6p. Matan.
Click to expand...
Click to collapse
What is the new device identified as....Qualcomm HS-USB QDLoader 9008? Your phone may be stuck in EDL mode. If that is the case you need to search XDA and attempt solutions for that problem first.
Did you previously have your PC setup properly with the correct USB drivers and it was working OK, or just now trying to get your dead phone to communicate? If the former it may be the EDL issue above. If it was the latter, the communication problem may just be the drivers were never set up in the first place. Have you tried a different cable or port on your PC, or another PC?
With no access to the OS you will be unable unlock the bootloader or access to ADB because those have to be enabled FIRST in the OS, so there's no helping you here until you can actually boot into the OS. Do you have access to Recovery mode? Tried a factory reset? If you don't have recovery, that was a major omission.

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