Database Develop

[Solved] Mass storage not working after failed root

Hi,
Im using a stock v30a rom and windows 7.
Yesterday i tried to root my phone with the latest version of AIO tool.
I followed instructions to the letter but while rooting the screen remained blank
AIO tool displayed a message "nvflash started" and went idle.
Rooting older versions was a matter off seconds so after a while i figured nothing
is going to happen and unplugged the usb cable.
The AIO tool then displayed a "usb write error"
The phone is working fine now but when i connect it to my pc in mass storage mode
It disconnects and reconnects all the time as if i was taking the cable in and out.
I did a hard reset , reinstalled LG united phone driver but that did not help.
Update: I connected the phone to a pc at work and mass storage works fine.
Can someone please help me uninstall the nvflash driver?

Looks like the presence of both drivers confused windows.
Figured i post the solution just in case someone has
the same problem.
Remove battery plug usb cable with volume up and down pressed,
Windows recognise "Nvidia usb device" go to device manager and
uninstall its driver.
If next time you connect the phone you get "cdc serial device not
connected" error reinstall lg driver and you re done.

[Q] Got factory cable but unknown device

Hi everyone. I need help to solve my brick phone trouble.
This my history:
I tried to flash a Moto X 1058 with a different firmware to be able to introduce a subsidy unlock code. That menu is locked on carrier's original firmware. So, did it with a wrong version and mess the phone, now it restarts automatically with a "boot failure" message and battery is not charging with wall charger.
I got this factory cable mentioned in another post and when is plugged screen says "Battery ok" "Transfer mode: USB Connected" in green text, but Windows won't recognize, says: "Unknown device". Y already tried different ports, different computers, uninstalling and reinstalling drivers but nothing.
I must say that before to use the factory cable, have the "battery low" red text message and once in any of those multiple press-hold keys sequence attempts (CAN'T REMEMBER WICH ONE) I was able to connect to the phone and windows recongnized via "fastboot device", but couldn't do a flash process due to the low battery state.
Any advise? Thanks in advance.

go_nathan said:
Hi everyone. I need help to solve my brick phone trouble.
This my history:
I tried to flash a Moto X 1058 with a different firmware to be able to introduce a subsidy unlock code. That menu is locked on carrier's original firmware. So, did it with a wrong version and mess the phone, now it restarts automatically with a "boot failure" message and battery is not charging with wall charger.
I got this factory cable mentioned in another post and when is plugged screen says "Battery ok" "Transfer mode: USB Connected" in green text, but Windows won't recognize, says: "Unknown device". Y already tried different ports, different computers, uninstalling and reinstalling drivers but nothing.
I must say that before to use the factory cable, have the "battery low" red text message and once in any of those multiple press-hold keys sequence attempts (CAN'T REMEMBER WICH ONE) I was able to connect to the phone and windows recongnized via "fastboot device", but couldn't do a flash process due to the low battery state.
Any advise? Thanks in advance.
Click to expand...
Click to collapse
so fastboot isn't working when you are on the screen that says "battery ok" "transfer mode: usb connected"? Your post is a little confusing. It sounds like you are trying to use rsd or something to flash back to stock FW. You can just do all of this manually through fastboot commands.
all you need to do is download the correct FW for your phone at http://sbf.droid-developers.org/ghost_rcica/list.php
unzip the file
put all the contents (not the folder but the contents in the folder) in the same directory that your fastboot.exe is in
run all of these commands http://forum.xda-developers.com/showthread.php?p=46712761&highlight=flash+stock#post46712761
and your done

jayboyyyy said:
so fastboot isn't working when you are on the screen that says "battery ok" "transfer mode: usb connected"? Your post is a little confusing. It sounds like you are trying to use rsd or something to flash back to stock FW. You can just do all of this manually through fastboot commands.
all you need to do is download the correct FW for your phone at http://sbf.droid-developers.org/ghost_rcica/list.php
unzip the file
put all the contents (not the folder but the contents in the folder) in the same directory that your fastboot.exe is in
run all of these commands http://forum.xda-developers.com/showthread.php?p=46712761&highlight=flash+stock#post46712761
and your done
Click to expand...
Click to collapse
Sorry if I was not clear. What I mean is...
Windows does not recognize the phone with the normal usb cable (the one that cames with the phone), says "uknown device".
Now, I try holding Volume Down + Power buttons, then connect the phone via factory cable and screen says "Battery ok, USB connected", but pc (windows 7) still does not recognize the phone, says "unknown device". I already tried to uninstall and reinstall drivers and different computers, but still the same.
There was only one time when the phone (even with low battery pattern) was recognized by windows with the standard usb cable, but can't remenber wich buttons I pressed.
By the way, I read english better than can write it, hope you can understand but most of all, I beg you can help.
Regards.

go_nathan said:
Sorry if I was not clear. What I mean is...
Windows does not recognize the phone with the normal usb cable (the one that cames with the phone), says "uknown device".
Now, I try holding Volume Down + Power buttons, then connect the phone via factory cable and screen says "Battery ok, USB connected", but pc (windows 7) still does not recognize the phone, says "unknown device". I already tried to uninstall and reinstall drivers and different computers, but still the same.
There was only one time when the phone (even with low battery pattern) was recognized by windows with the standard usb cable, but can't remenber wich buttons I pressed.
By the way, I read english better than can write it, hope you can understand but most of all, I beg you can help.
Regards.
Click to expand...
Click to collapse
windows isn't going to recognize it when it is "fastboot mode" which is the mode where is says "usb connected" or whatever. That is where you run fastboot commands from. If you open a command prompt window (in the directory that your fastboot.exe is in) then you can run "fastboot devices" and it will show that the phone is connected. From there you run the fastboot commands to fix your phone.

mmm no, unknown device it's button sequence matter.
jayboyyyy said:
windows isn't going to recognize it when it is "fastboot mode" which is the mode where is says "usb connected" or whatever. That is where you run fastboot commands from. If you open a command prompt window (in the directory that your fastboot.exe is in) then you can run "fastboot devices" and it will show that the phone is connected. From there you run the fastboot commands to fix your phone.
Click to expand...
Click to collapse
In fact fastboot did not work cause windows don't recognized the devices ("fastboot devices" did not list any device). Drivers were installed in the computer correctly but was a matter on how buttons was pressed.
So if this can help any one with the "UNKNOWN DEVICE" status in windows I did it this way, with the device administrator open (only to monitor the status of your device) in windows pc do this:
1.- Factory cable connected to the phone (so the phone did not restart automatically)
2.- Press POWER button until the phone get off. Before release the power button, disconnect factor cable.
3.- Press POWER + VOLUME DOWN for about 5 seconds, then release POWER BUTTON and keep holding VOLUME DOWN until the screens turns on.
4.- Screen says Connect USB Data Cable. Connect Factory cable. Screen says: "Battery Low" "Transfer mode: usb connected"
5.- Now hold VOLUME DOWN + VOLUMEN UP + POWER BUTTON, the phone turns off.
6.- When screen turns off, release VOLUME UP and POWER button. Screen must says "Battery OK" "Transfer mode: USB Connected"
7.- Windows must recognize the phone and install the drivers.
Try:
fastboot devices
...and your phone must be listed. I recommend to do a
fastboot erase cache
I have a downgrade security warning due to a lock bootloader. Once fastboot could connect to the phone, collect the neccesary data with
fastboot oem get_unlock_data
And follow instructions on https: / / motorola-global-portal.custhelp.com/app/standalone/bootloader/unlock-your-device-b
Sometimes you recieve a "your device does not qualify for bootloader unlocking" message, it's only a Device ID string mistake. Be sure to type or paste it correctly. Try again and don't forget to agree the terms below.
I could unlock the bootloader and my phone startup with a previous flash (the one that bricks my phone due to wrong firmware in a locked bootloader phone).
I hope this can help you too. Best regards

One M7 no connect to usb only charge

Hi i have HTC One M7 801n and cant connect to PC, i try whith other cables, other computers, different usb ports and drivers, nothing works, the micro usb conector seems to be ok, no message apears in the phone and only charge, fastboot says "fastboot ac" when conect to pc. i have the bootloader unlocked but i whant at least root the phone, any ideas pls ?

Or some way to root the phone whitout connect to pc ? Adb over WiFi ? Please help !!!

PITA22 said:
Or some way to root the phone whitout connect to pc ? Adb over WiFi ? Please help !!!
Click to expand...
Click to collapse
Please ! any one ?

PITA22 said:
Please ! any one ?
Click to expand...
Click to collapse
unlocking the bootloader requires a PC how did you do it ?

clsA said:
unlocking the bootloader requires a PC how did you do it ?
Click to expand...
Click to collapse
I did before, when the usb worked

PITA22 said:
I did before, when the usb worked
Click to expand...
Click to collapse
does device manager see your phone
have you tried different usb ports and cables.
have you installed the HTC drivers
do you have usb debugging enabled in developer options ?

clsA said:
does device manager see your phone
have you tried different usb ports and cables.
have you installed the HTC drivers
do you have usb debugging enabled in developer options ?
Click to expand...
Click to collapse
device manager see it "unknow device"
different ports cables and PCs not work.
usb debugging or not its the same, not recognize and "unknow device"

PITA22 said:
device manager see it "unknow device"
different ports cables and PCs not work.
usb debugging or not its the same, not recognize and "unknow device"
Click to expand...
Click to collapse
Reboot your phone and computer then try to connect it again. If the same issue, then look at this post and see if it will help. I have also uninstalled the drivers, rebooted the computer and then install the drivers again but not HTC Sync Mgr.

majmoz said:
Reboot your phone and computer then try to connect it again. If the same issue, then look at this post and see if it will help. I have also uninstalled the drivers, rebooted the computer and then install the drivers again but not HTC Sync Mgr.
Click to expand...
Click to collapse
nothing works like i said before already try in other computers win 7, winxp etc, always "unknow device" already try whith the las versions of HTC Drivers, in win7 and other computer whith xp, always apears like unknow device in device manager, like i said before in fasboot mode says only "fastboot ac".
Before stop working in one chance, connects and disconnects constantly without me touch the cable and and suddenly stop working

PITA22 said:
nothing works like i said before already try in other computers win 7, winxp etc, always "unknow device" already try whith the las versions of HTC Drivers, in win7 and other computer whith xp, always apears like unknow device in device manager, like i said before in fasboot mode says only "fastboot ac".
Before stop working in one chance, connects and disconnects constantly without me touch the cable and and suddenly stop working
Click to expand...
Click to collapse
If you have not done it already, try wiggling the mini-usb cable to see if it improves anything. Is the phone charging? It might be a hardware problem, I have read in some other post that it is the motherboard. Sorry, I can not think of anything else.

majmoz said:
If you have not done it already, try wiggling the mini-usb cable to see if it improves anything. Is the phone charging? It might be a hardware problem, I have read in some other post that it is the motherboard. Sorry, I can not think of anything else.
Click to expand...
Click to collapse
Yes i try to move the cable in the side of the micro usb, and 5 Or 6 diferents cables, and yes, the phone only charge.
Its very strange because I bought the phone used and only works one day and the second day lost the connection to pc when in try to unlock the bootloader, the first time no connected and suddenly work, I can only unlock the bootloader and stop working.

PITA22 said:
Yes i try to move the cable in the side of the micro usb, and 5 Or 6 diferents cables, and yes, the phone only charge.
Its very strange because I bought the phone used and only works one day and the second day lost the connection to pc when in try to unlock the bootloader, the first time no connected and suddenly work, I can only unlock the bootloader and stop working.
Click to expand...
Click to collapse
Try to clean the phone's contacts with a little rubbing alcohol and/or compressed air. There maybe lint or dirt on the contacts preventing a good connection.

maybe this shud work for u , it worked for me
http://canvas2update.blogspot.nl/2014/11/not-connecting-as-usb-storage-only.html

go to your battery manager, disable fast reboot. then turn off the phone and start it back up. It worked for me

punit_pandya said:
http://canvas2update.blogspot.nl/2014/11/not-connecting-as-usb-storage-only.html
Click to expand...
Click to collapse
Unfortunately that link does not work anymore. What was on it?
Asking because I got an m7 here where USB works just fine and reliably in both fastboot and recovery. But when the system (any ROM, tried more than 10 now), there's only charging. No MTP, no nothing.
Laptop's `dmesg` says:
Code:
[150266.816544] usb 2-1.5: new high-speed USB device number 16 using ehci-pci
[150266.935189] usb 2-1.5: New USB device found, idVendor=0bb4, idProduct=0c02
[150266.935193] usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[150266.935195] usb 2-1.5: Product: Android
[150266.935196] usb 2-1.5: Manufacturer: HTC
[150266.935197] usb 2-1.5: SerialNumber: XXXXXXXXXXXX
(1-2 seconds...)
Code:
[150359.023745] usb 2-1.5: USB disconnect, device number 16

bricked device, sol?

I've tried both normal & recovery booting and it doesn't turn on. Doesn't show the flashing logo either so I think I might be SOL unless there's a way for me to save it .

BAMvsGAME said:
I've tried both normal & recovery booting and it doesn't turn on. Doesn't show the flashing logo either so I think I might be SOL unless there's a way for me to save it .
Click to expand...
Click to collapse
If there is no sign of life, no known fix
send back to Amazon for a one time exchange if still under warranty
Sent from my sailfish using XDA Labs

Same thing just happened to me. I have a blank screen will not go into recovery mode or even pull up the screen.(black Screen) I just tried to downgrade to root. get nothing now. Take that back, my pc keeps beeping to leave me know a usb connectes, but then disconnects. tried different cables, one gives me a message USB Device not Recognized The last USB device you connected to this computer malfunctioned, and Windows does not recognize it. Another Cable in Device manager pops up MediaTek PreLoasder USB VCOM (Android). then disappears like every 15 seconds.

ivancunningham said:
Same thing just happened to me. I have a blank screen will not go into recovery mode or even pull up the screen.(black Screen) I just tried to downgrade to root. get nothing now. Take that back, my pc keeps beeping to leave me know a usb connectes, but then disconnects. tried different cables, one gives me a message USB Device not Recognized The last USB device you connected to this computer malfunctioned, and Windows does not recognize it. Another Cable in Device manager pops up MediaTek PreLoasder USB VCOM (Android). then disappears like every 15 seconds.
Click to expand...
Click to collapse
The following downgrades will permanently brick device:
- 5.3.2.1 to any lower version (no rollbacks possible)
- 5.3.2.0 to any version below 5.3.1.0
- 5.3.1.0 to any lower version
- 5.1.4/5.1.3 to any version below 5.1.2
- 5.1.2/5.1.1 to any lower version
This information is clearly spelled out in forum index. Contact Amazon for an exchange if within warranty.

Question Fastboot driver only displays on first use

I have a very odd issue with fastboot. The computer (windows 10) detects the device the first time I use fastboot and then will not show up in device manager on other attempts.
I have the EU variant running Oxygen OS 11.0.11.11.EB12BA with Magisk installed.
I have installed the Oneplus ADB drivers and this works flawlessly. Booting the first time into fastboot mode the device showed in the device manager, I was able to install the fastboot driver and fastboot devices showed my phone.
Trying a second or third time nothing shows in the device manager. The device is completely absent from USBDeview.exe. It behaves as if it's not even plugged in.
I was able to reproduce this on another computer I have.
Is anyone else facing this issue and/or knows what might be going wrong?
EDIT: If it helps anyone else having this issue I'm able to get the "OnePlus Android Bootloader Interface" to show up if I plug the phone into a USB HUB, then plug the HUB into the computer. Rebooting the phone again into fastboot will not show up but if I unplug and replug the hub in the driver will activate again.

VoltaGe86 said:
I have a very odd issue with fastboot. The computer (windows 10) detects the device the first time I use fastboot and then will not show up in device manager on other attempts.
I have the EU variant running Oxygen OS 11.0.11.11.EB12BA with Magisk installed.
I have installed the Oneplus ADB drivers and this works flawlessly. Booting the first time into fastboot mode the device showed in the device manager, I was able to install the fastboot driver and fastboot devices showed my phone.
Trying a second or third time nothing shows in the device manager. The device is completely absent from USBDeview.exe. It behaves as if it's not even plugged in.
I was able to reproduce this on another computer I have.
Is anyone else facing this issue and/or knows what might be going wrong?
EDIT: If it helps anyone else having this issue I'm able to get the "OnePlus Android Bootloader Interface" to show up if I plug the phone into a USB HUB, then plug the HUB into the computer. Rebooting the phone again into fastboot will not show up but if I unplug and replug the hub in the driver will activate again.
Click to expand...
Click to collapse
You don't need to install any fastboot drivers, if you're on windows; just install one plus driver (without driver signature/in test mode) and stay on them.

Sony make.belive said:
You don't need to install any fastboot drivers, if you're on windows; just install one plus driver (without driver signature/in test mode) and stay on them.
Click to expand...
Click to collapse
Sorry I think I've explained incorrectly. Those are the drivers I've installed, the problem is it only works once.
The second time I reboot the phone into Fastboot mode it doesn't display in device manager. Looking at USBDeview absolutely nothing shows up. Changing USB ports and the cable have no effect, however if I plug the phone into an old USB 2 hub I have then plug that into the computer it will display again in the device manager.