LG G4 H811 last shot - G4 Q&A, Help & Troubleshooting

Hi! I would like to try to give a last shot to my almost dead LG G4 H811, after charging the battery with an external charger I tried to boot it and the screen never turns on.
After that I tried to see if my computer was able to see it, so I plugged it with the battery attached and without pressing any button I saw this in dmesg:
Code:
[ 493.380017] usb 1-12: new high-speed USB device number 10 using xhci_hcd
[ 493.522999] usb 1-12: New USB device found, idVendor=05c6, idProduct=9008
[ 493.523005] usb 1-12: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 493.523009] usb 1-12: Product: QHSUSB__BULK
[ 493.523012] usb 1-12: Manufacturer: Qualcomm CDMA Technologies MSM
[ 493.524378] qcserial 1-12:1.0: Qualcomm USB modem converter detected
[ 493.524602] usb 1-12: Qualcomm USB modem converter now attached to ttyUSB0
Are those logs a good signal? I would really appreciate if it is possible to bring it back because we would like to use it for astrophotography on prime focus (it has a great camera)
Thanks in advance!

birry said:
Hi! I would like to try to give a last shot to my almost dead LG G4 H811, after charging the battery with an external charger I tried to boot it and the screen never turns on.
After that I tried to see if my computer was able to see it, so I plugged it with the battery attached and without pressing any button I saw this in dmesg:
Code:
[ 493.380017] usb 1-12: new high-speed USB device number 10 using xhci_hcd
[ 493.522999] usb 1-12: New USB device found, idVendor=05c6, idProduct=9008
[ 493.523005] usb 1-12: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 493.523009] usb 1-12: Product: QHSUSB__BULK
[ 493.523012] usb 1-12: Manufacturer: Qualcomm CDMA Technologies MSM
[ 493.524378] qcserial 1-12:1.0: Qualcomm USB modem converter detected
[ 493.524602] usb 1-12: Qualcomm USB modem converter now attached to ttyUSB0
Are those logs a good signal? I would really appreciate if it is possible to bring it back because we would like to use it for astrophotography on prime focus (it has a great camera)
Thanks in advance!
Click to expand...
Click to collapse
Sounds like you may have a bricked device. You should probably give this thread a thorough read, and follow it to the T.

Related

LG GW620,in Fedora12,adb can't find device.A week's trouble!

I'm nearly exhausted now.I installed the Fedora12,added a 50-android.rules int etc/udev/rules.d,in it i put "SUBSYSTEM==”usb”,SYSFS{idVendor}==”1004″,SYMLINK+=”android_adb”,MODE=”0666″ ".1004 is LG's vid. I restarted the pc,and my phone,adb still says no device.when I used lsusb,there was :Bus 002 Device 005: ID 1004:6171 LG Electronics, Inc.
and when I used dmesg -c command in the terminal,the last a few line were:
Code:
usb 2-2: new high speed USB device using ehci_hcd and address 3
usb 2-2: New USB device found, idVendor=1004, idProduct=6171
usb 2-2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb 2-2: Product: LG Mobile USB Modem
usb 2-2: Manufacturer: LG Electronics Inc.
usb 2-2: SerialNumber: 80A356748030787810
usb 2-2: configuration #1 chosen from 1 choice
CE: hpet increasing min_delta_ns to 15000 nsec
CE: hpet increasing min_delta_ns to 22500 nsec
CE: hpet increasing min_delta_ns to 33750 nsec
usb 2-2: USB disconnect, address 3
usb 2-2: new high speed USB device using ehci_hcd and address 4
usb 2-2: New USB device found, idVendor=1004, idProduct=6171
usb 2-2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb 2-2: Product: LG Mobile USB Modem
usb 2-2: Manufacturer: LG Electronics Inc.
usb 2-2: SerialNumber: 80A356748030787810
usb 2-2: configuration #1 chosen from 1 choice
usb 2-2: USB disconnect, address 4
usb 2-2: new high speed USB device using ehci_hcd and address 5
usb 2-2: New USB device found, idVendor=1004, idProduct=6171
usb 2-2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb 2-2: Product: LG Mobile USB Modem
usb 2-2: Manufacturer: LG Electronics Inc.
usb 2-2: SerialNumber: 80A356748030787810
usb 2-2: configuration #1 chosen from 1 choice
Phone ROM is 10g,I've been troubled by this problem by a whole week....
Really need your help,thank you!
what else infomation should I offer,or what command should I go on using?
I used to use Ubuntu 9.10,still got this problem.
I really want to try Nandroid and the APPS2SD ROM...
ADB is the most strange software I've ever met.I'm using ADB i.0.20.
ps:caose some reasons,in china ,can't get pages of google group discussion,thank the great firewall,and its developer!

[Q] QHSUSB_DLOAD equals permanent brick?

Last night I updated my Nexus 7 (2013) to 4.4.3, using the normal OTA notification. Everything was working fine, and the phone rebooted into 4.4.3 and I was happy. This morning however, the screen is all black and I cannot wake it in any way.
When I plug it into my computer it shows up in QHSUSB_DLOAD mode:
usb 2-1.5: new high-speed USB device number 19 using ehci-pci
usb 2-1.5: New USB device found, idVendor=05c6, idProduct=9008
usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-1.5: Product: QHSUSB_DLOAD
usb 2-1.5: Manufacturer: Qualcomm CDMA Technologies MSM
qcserial 2-1.5:1.0: Qualcomm USB modem converter detected
usb 2-1.5: Qualcomm USB modem converter now attached to ttyUSB0
By holding the power button I can get it to disconnect and reconnect, but always with this result.
The device was running rooted stock firmware, and was S-unlocked.
What can I do to fix this? Hopefully there is something to do other than return it..
frol_swe said:
Last night I updated my Nexus 7 (2013) to 4.4.3, using the normal OTA notification. Everything was working fine, and the phone rebooted into 4.4.3 and I was happy. This morning however, the screen is all black and I cannot wake it in any way.
When I plug it into my computer it shows up in QHSUSB_DLOAD mode:
usb 2-1.5: new high-speed USB device number 19 using ehci-pci
usb 2-1.5: New USB device found, idVendor=05c6, idProduct=9008
usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-1.5: Product: QHSUSB_DLOAD
usb 2-1.5: Manufacturer: Qualcomm CDMA Technologies MSM
qcserial 2-1.5:1.0: Qualcomm USB modem converter detected
usb 2-1.5: Qualcomm USB modem converter now attached to ttyUSB0
By holding the power button I can get it to disconnect and reconnect, but always with this result.
The device was running rooted stock firmware, and was S-unlocked.
What can I do to fix this? Hopefully there is something to do other than return it..
Click to expand...
Click to collapse
Have the same problem here
frol_swe said:
Last night I updated my Nexus 7 (2013) to 4.4.3, using the normal OTA notification. Everything was working fine, and the phone rebooted into 4.4.3 and I was happy. This morning however, the screen is all black and I cannot wake it in any way.
When I plug it into my computer it shows up in QHSUSB_DLOAD mode:
usb 2-1.5: new high-speed USB device number 19 using ehci-pci
usb 2-1.5: New USB device found, idVendor=05c6, idProduct=9008
usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-1.5: Product: QHSUSB_DLOAD
usb 2-1.5: Manufacturer: Qualcomm CDMA Technologies MSM
qcserial 2-1.5:1.0: Qualcomm USB modem converter detected
usb 2-1.5: Qualcomm USB modem converter now attached to ttyUSB0
By holding the power button I can get it to disconnect and reconnect, but always with this result.
The device was running rooted stock firmware, and was S-unlocked.
What can I do to fix this? Hopefully there is something to do other than return it..
Click to expand...
Click to collapse
Try the nexus 7 toolkit. There are options for recovering bricks. Good luck
Sent from my Nexus 7 using XDA Premium 4 mobile app

[Q] Phone doesn't boot

Hey community,
I have big problems with my Fairphone.
It doesn't boot, it happens nothing, totally black screen, no fairphone logo, no system popup...
I turned it off yesterday and since then I've got this issues.
I tried :
-every key combination but nothing happened
-to connect it with my computer and charger but nothing happened, no sign, no LED signal
-removed battery and sim card
I didn't make something unusual, only turned it off, so can anyone please help me?
Thanks in advance
DarkerTimes said:
Hey community,
I have big problems with my Fairphone.
It doesn't boot, it happens nothing, totally black screen, no fairphone logo, no system popup...
I turned it off yesterday and since then I've got this issues.
I tried :
-every key combination but nothing happened
-to connect it with my computer and charger but nothing happened, no sign, no LED signal
-removed battery and sim card
I didn't make something unusual, only turned it off, so can anyone please help me?
Thanks in advance
Click to expand...
Click to collapse
Hi can you try if the recovery mode still works? (e.g turn off the phone and power it on by keeping the power and volume up button pressed).
If that doesn't work try removing the battery and connecting the device to a Linux PC and see if a new device appears (by running dmesg). Do you see a device appear?
_keesj said:
Hi can you try if the recovery mode still works? (e.g turn off the phone and power it on by keeping the power and volume up button pressed).
If that doesn't work try removing the battery and connecting the device to a Linux PC and see if a new device appears (by running dmesg). Do you see a device appear?
Click to expand...
Click to collapse
Hi,
recovery mode doesn't work, the phone is completely dead.
Then I will try your tip with the Linux PC. But first I have to find one^^
I will tell you when i have access to a linux computer and when it gets the device.
Thanks for your help
Gesendet von meinem GT-I9505 mit Tapatalk
DarkerTimes said:
Hi,
recovery mode doesn't work, the phone is completely dead.
Then I will try your tip with the Linux PC. But first I have to find one^^
I will tell you when i have access to a linux computer and when it gets the device.
Thanks for your help
Gesendet von meinem GT-I9505 mit Tapatalk
Click to expand...
Click to collapse
You might like to know that you can run many versions of Linux directly from a DVD drive or USB drive. A popular one, and probably the easiest, is: http://www.ubuntu.com/desktop
To "run dmesg", as suggested by @_keesj, do the following:
Start Ubuntu
When the desktop is open, press the Windows key.
Connect your phone.
Type "Terminal".
Press Enter or click the Terminal icon.
Type dmesg, press Enter.
Vinnl said:
You might like to know that you can run many versions of Linux directly from a DVD drive or USB drive. A popular one, and probably the easiest, is: http://www.ubuntu.com/desktop
To "run dmesg", as suggested by @_keesj, do the following:
Start Ubuntu
When the desktop is open, press the Windows key.
Connect your phone.
Type "Terminal".
Press Enter or click the Terminal icon.
Type dmesg, press Enter.
Click to expand...
Click to collapse
Thank you very much, I will try
Gesendet von meinem GT-I9505 mit Tapatalk
Vinnl said:
You might like to know that you can run many versions of Linux directly from a DVD drive or USB drive. A popular one, and probably the easiest, is: http://www.ubuntu.com/desktop
To "run dmesg", as suggested by @_keesj, do the following:
Start Ubuntu
When the desktop is open, press the Windows key.
Connect your phone.
Type "Terminal".
Press Enter or click the Terminal icon.
Type dmesg, press Enter.
Click to expand...
Click to collapse
View attachment 2925701
I got this message when i connect my Phone to a 32bit Ubuntu VM (VMWare-Player)
Do you know an option for dmesg to make the text shorter? Its such a huge text, larger than the Terminal is able to display.
DarkerTimes said:
View attachment 2925701
I got this message when i connect my Phone to a 32bit Ubuntu VM (VMWare-Player)
Do you know an option for dmesg to make the text shorter? Its such a huge text, larger than the Terminal is able to display.
Click to expand...
Click to collapse
Congratulation for your first GNU/linux use !:highfive:
Yeah dmesg is super huge, it contains record of all that happened on your system since your started it up. (it s a bit more complicated in fact).
I dont know any option to make it shorter, but there are ways
- to only get the bottom of it,
- to save its output in a file
Code:
dmesg > ~/Desktop/dmesg-output.txt
- or to increase the amount of message your terminal can display (right click, profile, profile preferences, scrolling, unlimited).
However here you only need to look at what happened recently (i.e when you connected your phone)
If you connecte your phone and then run the dmesg command the end of the output should show the device detection in the last 50 lines.
I cant acces your attachement, is this only me ?
With a working phone on a non VM ubuntu you should see something like this.
(It may be different on your system, as long as you can read som usb lines, further more containing MT65xx or Mediateck, you are good to go !
....
...
[ 237.437926] usb 2-1.6: new high-speed USB device number 5 using ehci-pci
[ 237.530804] usb 2-1.6: New USB device found, idVendor=0e8d, idProduct=2000
[ 237.530809] usb 2-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 237.530812] usb 2-1.6: Product: MT65xx Preloader
[ 237.530814] usb 2-1.6: Manufacturer: MediaTek
[ 237.637040] cdc_acm 2-1.6:1.1: ttyACM0: USB ACM device
[ 237.692248] usbcore: registered new interface driver cdc_acm
[ 237.692250] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapter
....
That would means that your OS detected that a new device was connected to USB and that it recognise a mediateck phone.
I hope it's also the case with your phone !
BTW I don't know vmware so well, but sometimes virtual machine prevent virtualised operating system to acces usb port. Maybe someone can confirm that this issue wont appear here ? Or you can check it out by plugging some working usb device and look if some lines get added to dmesg
MoreThanADev said:
I cant acces your attachement, is this only me ?
Click to expand...
Click to collapse
Nope, apparently the attachment wasn't uploaded correctly.
MoreThanADev said:
I cant acces your attachement, is this only me ?
Click to expand...
Click to collapse
hope it works now
View attachment 2927858
here is the output from dmesg:
first run:
[ 5.270990] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 5.271001] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 5.271010] usb usb1: Product: EHCI Host Controller
[ 5.271019] usb usb1: Manufacturer: Linux 3.13.0-35-generic ehci_hcd
[ 5.271027] usb usb1: SerialNumber: 0000:02:03.0
[ 5.272005] hub 1-0:1.0: USB hub found
[ 5.272231] hub 1-0:1.0: 6 ports detected
[ 5.273333] ehci-platform: EHCI generic platform driver
[ 5.273386] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 5.273404] ohci-pci: OHCI PCI platform driver
[ 5.273465] ohci-platform: OHCI generic platform driver
[ 5.273494] uhci_hcd: USB Universal Host Controller Interface driver
[ 5.273813] uhci_hcd 0000:02:00.0: UHCI Host Controller
[ 5.273822] uhci_hcd 0000:02:00.0: new USB bus registered, assigned bus number 2
[ 5.274010] uhci_hcd 0000:02:00.0: irq 18, io base 0x000020c0
[ 5.274349] usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
[ 5.274351] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 5.274352] usb usb2: Product: UHCI Host Controller
[ 5.274353] usb usb2: Manufacturer: Linux 3.13.0-35-generic uhci_hcd
[ 5.274355] usb usb2: SerialNumber: 0000:02:00.0
[ 5.274492] hub 2-0:1.0: USB hub found
[ 5.274546] hub 2-0:1.0: 2 ports detected
second run
[ 201.982468] usb 2-2.1: new full-speed USB device number 4 using uhci_hcd
[ 202.310781] usb 2-2.1: New USB device found, idVendor=0e8d, idProduct=0003
[ 202.310840] usb 2-2.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 202.448421] cdc_acm 2-2.1:1.0: ttyACM0: USB ACM device
[ 202.456529] usbcore: registered new interface driver cdc_acm
[ 202.456544] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[ 202.471104] usbcore: registered new interface driver usbserial
[ 202.471210] usbcore: registered new interface driver usbserial_generic
[ 202.471344] usbserial: USB Serial support registered for generic
[ 202.481866] usbcore: registered new interface driver option
[ 202.482531] usbserial: USB Serial support registered for GSM modem (1-port)
[ 241.102849] usb 2-2.1: USB disconnect, device number 4
[ 266.180249] usb 2-2.1: new full-speed USB device number 5 using uhci_hcd
[ 266.581692] usb 2-2.1: New USB device found, idVendor=0e8d, idProduct=0003
[ 266.581747] usb 2-2.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 266.660505] cdc_acm 2-2.1:1.0: ttyACM0: USB ACM device
what to do now?
btw, every 50-60 seconds i got the pluggin and unplugg sound from my windows system
Edit:
i have a second Fairphone now and tried to turn on the first one with tha accu of the second one and the second phone with the accu of the first one. both doesn´t start. only the second one with the second accu is working.
DarkerTimes said:
second run
[ 266.180249] usb 2-2.1: new full-speed USB device number 5 using uhci_hcd
[ 266.581692] usb 2-2.1: New USB device found, idVendor=0e8d, idProduct=0003
[ 266.581747] usb 2-2.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 266.660505] cdc_acm 2-2.1:1.0: ttyACM0: USB ACM device
what to do now?
Click to expand...
Click to collapse
These lines are your phone so there is still some life in it. But it doesnt even start the preloader which appears after these lines if I plug in my phone (powered off).
Maybe this low level mode is enough for the SP flash tool and you can try the unbrick guide: http://forum.xda-developers.com/wik...o_restore_Fairphone_if_you_totally_bricked_it
Make sure to chose the correct image (FUSE for upgraded partition layout, 1G13G for the old layout)
You might want to uncheck "userdata", this might give you a chance of keeping your apps and settings.
Other than that you could contact Fairphone support.
My Solution
Code:
#include
/*
* Your warranty is now void.
*
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*/
I had the same Problem while trying install CM11.
What works for me @ a Win7 PC:
- remove the Battery (Force shutdown the phone)
- plugin the Battery
- Turn on the Phone while pressing the power-button and the volume-UP button. (release power button after 6 Secs)
- Now you're in the recovery menu
- If you have CWM (like me) goto --> install zip --> install zip from sideload
If you have another bootloader you'll find the "install zip from sideload" somewhere...
- Download the Original zip-file from Fairphone (Fairphone Website --> SUPPORT --> SOFTWARE --> UPDATES --> SOFTWARE --> DOWNLOADS)
- Download / install the MTK6589 ADB Driver (http://forum.xda-developers.com/showthread.php?t=2247537)
- now download a tool which contains the adb.exe (I tooked the "MTK droid root & tools" http://forum.xda-developers.com/showthread.php?t=2160490)
- Start the MTK tool as Admin and press "ADB-Terminal"
- in the Terminal write: "adb push NAMEOFTHEZIPFILE.zip"
- now your phone should start transfer, reboot and install the original OS
Hope this works for you too...
* More about ADB and Sideload (http://forum.xda-developers.com/showthread.php?t=2318497
Regards
_tmp said:
These lines are your phone so there is still some life in it. But it doesnt even start the preloader which appears after these lines if I plug in my phone (powered off).
Maybe this low level mode is enough for the SP flash tool and you can try the unbrick guide: http://forum.xda-developers.com/wik...o_restore_Fairphone_if_you_totally_bricked_it
Make sure to chose the correct image (FUSE for upgraded partition layout, 1G13G for the old layout)
You might want to uncheck "userdata", this might give you a chance of keeping your apps and settings.
Other than that you could contact Fairphone support.
Click to expand...
Click to collapse
shooter_92 said:
Code:
#include
/*
* Your warranty is now void.
*
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at me for messing up your device, I will laugh at you.
*/
I had the same Problem while trying install CM11.
What works for me @ a Win7 PC:
- remove the Battery (Force shutdown the phone)
- plugin the Battery
- Turn on the Phone while pressing the power-button and the volume-UP button. (release power button after 6 Secs)
- Now you're in the recovery menu
- If you have CWM (like me) goto --> install zip --> install zip from sideload
If you have another bootloader you'll find the "install zip from sideload" somewhere...
- Download the Original zip-file from Fairphone (Fairphone Website --> SUPPORT --> SOFTWARE --> UPDATES --> SOFTWARE --> DOWNLOADS)
- Download / install the MTK6589 ADB Driver (http://forum.xda-developers.com/showthread.php?t=2247537)
- now download a tool which contains the adb.exe (I tooked the "MTK droid root & tools" http://forum.xda-developers.com/showthread.php?t=2160490)
- Start the MTK tool as Admin and press "ADB-Terminal"
- in the Terminal write: "adb push NAMEOFTHEZIPFILE.zip"
- now your phone should start transfer, reboot and install the original OS
Hope this works for you too...
* More about ADB and Sideload (http://forum.xda-developers.com/showthread.php?t=2318497
Regards
Click to expand...
Click to collapse
Hey guys,
sry that I've been away for this long period of time.
The problem is that i can't enter recovery mode, so the only way to try it would be with the SP flash tool but I decided to contact the fairphone support and sent it back for repairing it.
But thanks all for your help!!
Edit: I got my phone back now. The issues were caused by damaged mainboard, they change it completely.
Sent from my Galaxy S4 using Tapatalk
I have the same problem
Hey,
I have the same problem, did it fall under warranty or did you have to pay for the repair?
hewitje240 said:
Hey,
I have the same problem, did it fall under warranty or did you have to pay for the repair?
Click to expand...
Click to collapse
Hi, did fall under warranty
Sent from my GT-I9505 using XDA Free mobile app

[Nexus 5X] [LG H790] Bricked device with wrong bootloader

Device: Nexus 5X - LG H790 - 16GB
Hey guys!
I've spent the past... 7hr reading and trying different things but nothing seems to work.
Here's what happened: I was trying to install a custom rom which required a custom bootloader.
Everithing's good 'till I mistankenly flash the bootloader for Nexus 5 instead of 5X. And hell was unleashed... the phone got bricked as soon as I rebooted it.
It won't turn on, no matter the key combination: Power, Vol Up + Power, Vol D + Power, Both Vol + Power, the same while pluggin the USB to the computer, w/ and w/o the power key. It won't turn on.
On linux, the device is displayed as:
Code:
Bus xxx Device yyy: ID 05c6:9008 Qualcomm, Inc. Gobi Wireless Modem (QDL mode)
And there's only one device generated, a TTY:
Code:
/dev/ttyUSB0
I can't see partitions. If I try to dd the device through the bus:
Code:
:~# dd if=/dev/bus/usb/xxx/yyy of=img
0+1 records in
0+1 records out
50 bytes (50 B) copied, 0.000147159 s, 340 kB/s
:~# xxd img
0000000: 1201 0002 0000 0040 c605 0890 0000 0102 [email protected]
0000010: 0001 0902 2000 0101 0080 0109 0400 0002 .... ...........
0000020: ffff ff00 0705 8102 0002 0007 0501 0200 ................
0000030: 0200 ..
Here's the dmesg output:
Code:
[34405.332730] usb 2-2: new high-speed USB device number 36 using ehci-pci
[34405.465440] usb 2-2: New USB device found, idVendor=05c6, idProduct=9008
[34405.465444] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[34405.465446] usb 2-2: Product: QHSUSB__BULK
[34405.465447] usb 2-2: Manufacturer: Qualcomm CDMA Technologies MSM
[34405.465868] qcserial 2-2:1.0: Qualcomm USB modem converter detected
[34405.466518] usb 2-2: Qualcomm USB modem converter now attached to ttyUSB0
[34425.715761] usb 2-2: USB disconnect, device number 36
[34425.716093] qcserial ttyUSB0: Qualcomm USB modem converter now disconnected from ttyUSB0
[34425.716129] qcserial 2-2:1.0: device disconnected
[34430.584072] usb 2-2: new high-speed USB device number 37 using ehci-pci
[34430.716784] usb 2-2: New USB device found, idVendor=05c6, idProduct=9008
[34430.716790] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[34430.716792] usb 2-2: Product: QHSUSB__BULK
[34430.716794] usb 2-2: Manufacturer: Qualcomm CDMA Technologies MSM
[34430.717197] qcserial 2-2:1.0: Qualcomm USB modem converter detected
[34430.717303] usb 2-2: Qualcomm USB modem converter now attached to ttyUSB0
If I connect to the TTY via screen, I always got the same response no matter what (I'm unable to reproduce it right now, but it was a 16 bytes [32 hex chars] fixed response, mostly zeroes).
So, I'm lost here.... the best response I found was to contact LG and ask for a replacement. So, I already sent an email to them. But the fact is, that I live in Argentina, and the phone was bought in USA through a friend, so I don't know if that option is gonna work
Every help is appreciated!
What can/should I do? I use Debian, but I've no problem using Windows 7 x64 if it's needed.
I'm on the same situation. I own a 32gb H790. I was taking random pictures with the google camera app, and suddenly it began to reboot, after that.. endless bootloop. I bought some usb c cables and tried to flash the original images (previous to that, it didn't had any mods, neither root). The flash somehow failed, and it didn't charge or boot since then, it only shows a flashing red light when connected. I couldn't enter recovery nor download mode either so the solution from the other thread didn't work for me. I guess RMA is the only solution for now.
I sent it to LG with a friend (I'm not from USA also), lets see what they say when they see it.
hackancuba said:
Device: Nexus 5X - LG H790 - 16GB
Hey guys!
I've spent the past... 7hr reading and trying different things but nothing seems to work.
Here's what happened: I was trying to install a custom rom which required a custom bootloader.
Everithing's good 'till I mistankenly flash the bootloader for Nexus 5 instead of 5X. And hell was unleashed... the phone got bricked as soon as I rebooted it.
It won't turn on, no matter the key combination: Power, Vol Up + Power, Vol D + Power, Both Vol + Power, the same while pluggin the USB to the computer, w/ and w/o the power key. It won't turn on.
On linux, the device is displayed as:
Code:
Bus xxx Device yyy: ID 05c6:9008 Qualcomm, Inc. Gobi Wireless Modem (QDL mode)
And there's only one device generated, a TTY:
Code:
/dev/ttyUSB0
I can't see partitions. If I try to dd the device through the bus:
Code:
:~# dd if=/dev/bus/usb/xxx/yyy of=img
0+1 records in
0+1 records out
50 bytes (50 B) copied, 0.000147159 s, 340 kB/s
:~# xxd img
0000000: 1201 0002 0000 0040 c605 0890 0000 0102 [email protected]
0000010: 0001 0902 2000 0101 0080 0109 0400 0002 .... ...........
0000020: ffff ff00 0705 8102 0002 0007 0501 0200 ................
0000030: 0200 ..
Here's the dmesg output:
Code:
[34405.332730] usb 2-2: new high-speed USB device number 36 using ehci-pci
[34405.465440] usb 2-2: New USB device found, idVendor=05c6, idProduct=9008
[34405.465444] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[34405.465446] usb 2-2: Product: QHSUSB__BULK
[34405.465447] usb 2-2: Manufacturer: Qualcomm CDMA Technologies MSM
[34405.465868] qcserial 2-2:1.0: Qualcomm USB modem converter detected
[34405.466518] usb 2-2: Qualcomm USB modem converter now attached to ttyUSB0
[34425.715761] usb 2-2: USB disconnect, device number 36
[34425.716093] qcserial ttyUSB0: Qualcomm USB modem converter now disconnected from ttyUSB0
[34425.716129] qcserial 2-2:1.0: device disconnected
[34430.584072] usb 2-2: new high-speed USB device number 37 using ehci-pci
[34430.716784] usb 2-2: New USB device found, idVendor=05c6, idProduct=9008
[34430.716790] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[34430.716792] usb 2-2: Product: QHSUSB__BULK
[34430.716794] usb 2-2: Manufacturer: Qualcomm CDMA Technologies MSM
[34430.717197] qcserial 2-2:1.0: Qualcomm USB modem converter detected
[34430.717303] usb 2-2: Qualcomm USB modem converter now attached to ttyUSB0
If I connect to the TTY via screen, I always got the same response no matter what (I'm unable to reproduce it right now, but it was a 16 bytes [32 hex chars] fixed response, mostly zeroes).
So, I'm lost here.... the best response I found was to contact LG and ask for a replacement. So, I already sent an email to them. But the fact is, that I live in Argentina, and the phone was bought in USA through a friend, so I don't know if that option is gonna work
Every help is appreciated!
What can/should I do? I use Debian, but I've no problem using Windows 7 x64 if it's needed.
Click to expand...
Click to collapse
As far as I know, you are now the owner of a beautiful paperweight. Short of replacing the motherboard, there isn't anything you can do. Hopefully you get a free replacement, but I wouldn't bet on it Best of luck!
Well, thanks guys... I got a reply today from LG, here it is:
Thank you for taking time to contact LG and we really appreciate your e-mail!
I hope everything is going well with you.
You are a valued customer and we regret to hear of any problems you have encountered with our product and we’re very sorry as LG doesn’t expect this to happen. I do recognize the frustration and disappointment this has brought as I would definitely feel the same if this has happened. Please accept our apology for the trouble or inconvenience you have experienced.
In response to your concern, you are welcome to send in the device to our facility so that our licensed technicians may run a full diagnostic test on the device and perform necessary repairs to address the issue - or to have it replaced under warranty if necessary. For your convenience, we will email you prepaid label so you won't have to pay shipping the device back and forth.
I would be more than happy to process a repair authorization for you. Please keep in mind that this process may take approximately 7-9 business days from the day the device is delivered to our facility to the day that it is delivered back to you. If the phone falls under manufacture defect, phone will be repaired right away for free or will be replaced depending on technician’s assessment and diagnosis. You may have an alternate option by visiting your local service provider. Would you like to proceed with the LG service option or would you like to try with your service provider first?
Should you decide to send the unit back, please let us know. Please also include the following so that we can set a repair ticket for the unit:
- phone number
- alternate phone number (if any)
- complete physical address where the unit will be shipped back after repair
- IMEI number (or ESN or MEID number)
- copy of the receipt (bank/credit card statement, email confirmation or order number)
If you have questions or need further assistance, please let me know. You can reach us out via LG Live Chat on our website (link removed, LG's website), or on our phone support by calling our technical support hotline 800-243-0000/ 1-800-793-8896.
Thank you and we wish you all the best.
Sincerely,
Click to expand...
Click to collapse
So, I'm gonna post how it goes, for future reference.
I found someone who fixed a similar brick on another LG phone. I think you can find similar images for the 5X.
I'm not allowed to post links yet so google "hard brick to hell and back"
wbxp99 said:
I found someone who fixed a similar brick on another LG phone. I think you can find similar images for the 5X.
I'm not allowed to post links yet so google "hard brick to hell and back"
Click to expand...
Click to collapse
Yes, I read that one before
No images nor KDZ for 5X
Thanks!
hackancuba said:
Well, thanks guys... I got a reply today from LG, here it is:
So, I'm gonna post how it goes, for future reference.
Click to expand...
Click to collapse
Did you tell them how your phone was bricked? I mean, that you flashed the bootloader for Nexus 5.
I'm in a similar situation (hard brick after "trying" to install original images) and I'm running out of ideas.
I met exactly the very same problem, flashing Nexus 5's bootloader to 5X. Moreover, I'm in the similar situation with you. I live in China and bought 5x in US.
I tried many methods I can find but none of them works. Finally, I send the phone to a local LG Mobile Phone service shop. The staff said the model is never sold in China but they can try. About two weeks later, they told me that, the phone is repaired. I got it yesterday. Until now, it works well.
And yes, they did charge 600 yuan (about 91 usd) from me. Not bad. Wish you have better luck.
guillermo1996 said:
Did you tell them how your phone was bricked? I mean, that you flashed the bootloader for Nexus 5.
I'm in a similar situation (hard brick after "trying" to install original images) and I'm running out of ideas.
Click to expand...
Click to collapse
I didn't actually told them what happened
So far, they told me I need to ship the phone to US and they'll repair it. The only issue now is trying to find the buying receipt from BestBuy, since I don't have it... damn!
Try using the LG UP tool.

Another bricked device question

A neighbour asked me to root his kindle fire hd yesterday. After a bit of research it looked like the software needed a downgrade first. I followed a guide and all went well or so I thought. After rebooting the kindle after the downgrade nothing happened.Black screen. Power button does nothing and I cant access the boot menu.None of the reset tricks work,
dmesg recognizes
New USB device found, idVendor=0e8d, idProduct=2000
[ 3081.285978] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 3081.285980] usb 1-1: Product: MT65xx Preloader
[ 3081.285982] usb 1-1: Manufacturer: MediaTek
USB disconnect, device number 46
but keeps disconnecting.
My windows virtual machine does not recognize the device
Can someone confirm that I need to go out and buy a new tablet now?
markw3 said:
A neighbour asked me to root his kindle fire hd yesterday. After a bit of research it looked like the software needed a downgrade first. I followed a guide and all went well or so I thought. After rebooting the kindle after the downgrade nothing happened.Black screen. Power button does nothing and I cant access the boot menu.None of the reset tricks work,
dmesg recognizes
New USB device found, idVendor=0e8d, idProduct=2000
[ 3081.285978] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 3081.285980] usb 1-1: Product: MT65xx Preloader
[ 3081.285982] usb 1-1: Manufacturer: MediaTek
USB disconnect, device number 46
but keeps disconnecting.
My windows virtual machine does not recognize the device
Can someone confirm that I need to go out and buy a new tablet now?
Click to expand...
Click to collapse
This is only for the 1st Gen Fire (2011)
See
Fire Index: Which Amazon (Kindle) Fire Do I have?
For correct form links
Sent from my XT1096 using XDA Labs
As far as I know its a kindle fire 7 5th gen

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