Hello there,
I've tried converting Chinese to Global firmware Vivo X80 pro (unlocked bootloader and rooted) and ends up with completely dead bricked after flashing all files on fastboot it's rebooted on a black screen and never went on again!
Can't boot into fastboot mode neither recovery but its can connect to pc via USB-C which is USB-3.1 only! My pc recognize it as "USB root hub" so what does that mean? Please if there is any solution to consider?
Best regards
The function of the USB root hub
The USB root hub sits directly on the mainboard of a PC and consists of a control chip that controls the USB ports on the mainboard.
Depending on the design of the mainboard, there can be several USB root hubs. There are several USB ports on each mainboard, which are either accessible at the back of the computer or are internal to the PC on the mainboard as plug-in connections. These internal connections are usually led via a corresponding cable to the USB ports, which are accessible from the front of the PC case.
The USB root hub(s) are responsible for controlling all USB ports present on the PC. A maximum of 127 USB devices can be connected and managed per USB root hub. In order to be able to connect so many devices to the PC, external USB hubs are usually used, which work more or less as distributors.
Related
Hi guys, I'm obviously new here, but I did have a look and couldn't seem to find this answer anywhere else.
I'm trying to hook my HTC Desire to my PC, but every time I connect it via USB cable it says that device drivers are not found and that Windows cannot rectify the problem.
I've tried installing HTC Sync, but the PC won't even recognise that there's a phone or mass storage device hooked up, so it just stays at "disconnected".
I've selected the phone to appear as a mass storage device when I plug it int the PC (I even select this on the phone's display as I connect it via USB so the phone realises that it's being plugged into a PC).
Does anyone know how to fix this?
Thanks in advance.
I've struggled with a problem like this before (though, a flash drive, not a phone).
There were two solutions that helped mi on two different occasions.
1) Removing all usb devices from the computer. Shut the computer down, take out the power cord and wait for 20-30 min to settle all capacitors. Then turn it on and plug the devices back in.
2) Put the device in the computer as Mass Storage. Go to device manager and see where is the device. Right click on it (should be unknown or stuff), choose update driver. If it doesn't find anything try updating windows with latest patches and try again.
3) I was solving a non-detectable usb webcam, but removing ALL usb devices from the device manager (Under USB choose device, delete, choose device, delete.) Then click Scan for changes on the top to refresh the devices and install the drivers of the usb root hubs, etc. This would probably fix the problem if the above fails.
---- edit ----
Quick note: if your keyboard/mouse are USB, you could hang without keyboard or mouse until you restart your computer, so keep in mind if you can detect them, delete them last
----/edit -----
If you still can't get it to work, please provide results from another computer (if it works there as mass storage), or better if you have some Linux Live CD you could try there if it gets recognised.
Where you try to plug usb cable into PC - front panel or rear? Because a lot of PCs have an issue with front panel usb. Try rear panel
jankos said:
Where you try to plug usb cable into PC - front panel or rear? Because a lot of PCs have an issue with front panel usb. Try rear panel
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Click to collapse
Thanks to both of you for the swift replies
I actually figured I'd check this short fix before trying the more detailed ones and it seems like it was just a matter of plugging it into the rear usb!
I'm definitely putting this solution to my personal FAQ. Thanks, jankos.
HTC EVO won't mount as a drive
verified that issue was with the front USB port. I plugged my EvO in to a usb hub I had plugged into back usb port and it worked like it was supposed to.
When I plug my handset to ANY computer (with, without kies or drivers, it doesn't matter) the phone charges, but, nothing appears on the computer (no unknown device or recognizing the two drives of the phone, but not mounting them (as it did before)) on the phone.
The "USB" icon doesn't prompt and if I go to settings/wireless and network/ USB utilities, when I touch the USB mass storage button, it prompts me to connect cable, which is already connected.
-USB debug isn't activated (I've tried both)
When my phone is powered off and I start to charge it, the charging screen doesn't prompts, It just start booting.
I've tried different USB Cables.
The Phone is Official Stock Never Rooted (I discovered this trying to root it today)
Am I SOL if I want to root it without a working USB Data port?
Any ideas?
i would say make sure there's no dust/ buildup in the port. I had connection issues once to find a pocket lint cramed in there. next do all the other stuff. uninstall/reinstall drivers, diff usb port, diff pc, reboot. My symptoms were similar to yours but i was able to reboot into recovery/bootloader and use adb/fastboot no prob, so not sure. and I was already rooted/twrp recovery. might be worth it to try fastboot in bootloader just to be sure and get a recovery on it asap. If that works you should be able to recover stock or flash whatever, then test usb again in diff pc with fresh kies install. good luck.
Sounds like bad/improper USB cables to me, not all USB cables support data and charging, make sure you're using an official Samsung USB cable.
If you have a friend with a Samsung smart phone ask to try their cable.
Today I first used an OTG adapter, after last week OTA update, but to my surprise it no longer works.
I've tried with a couple of different adpaters, with mouse and USB drive that previously worked, but neither one works now.
Can anyone confirm? I'm on stock 2.20.40.58, bootloader locked, no root.
EDIT: Now it seems that my phone isn't even recognized in my PC ( I'm at work at the moment, and I used a couple of generics microUSB cables, with the same results ), only charging works fine. Did something broke? Or it is just me
I'm on the same firmware version and I can confirm that USB OTG works. Also the phone and external memory card are detected when a USB cable is plugged. in(tried 2-3 generic cables as well as the ASUS cable). You may want to update your USB drivers for the PC to see if the phone gets recognised.
N15H4NT said:
I'm on the same firmware version and I can confirm that USB OTG works. Also the phone and external memory card are detected when a USB cable is plugged. in(tried 2-3 generic cables as well as the ASUS cable). You may want to update your USB drivers for the PC to see if the phone gets recognised.
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Click to collapse
Thank you, now I'll check it more thoroughly when I get home.
I've managed to replace the USB board, and now OTG USB is working back, the phone is recognized on PC, but says "Device descriptor request failed" (I've tried with W10 on two different PCs, same results). A thread in ZenTalk mentions the issue in a Zenfone 5, but did all with no resukts
Hi all.
I have a wonderful LG G7 (model G710EMW from Brazil carrier Claro).
Recently I've tried to connect it to my new car audio system that supports Android Auto and it didn't work as expected. Long story short, I've discovered that USB does not work on my phone.
Charging works alright, but anything that requires an USB connection simply does not work.
When I connect my phone to my PC, the phone starts charging, never shows the "USB connection" notification icon and the PC does not recognize anything. The phone also does not allow me to choose the kind of USB connection that is to be used (you know, MTP and the other options). When connected to PC through USB cable it displays exactly the same behaviour as if it was connected to a regular charger.
I have tried different cables, being two LG original USB-C to USB-A cables, an USB-C to USB-A from Xiaomi and a generic brand USB-C to USB-A charging and data cable. All of them show the same behaviour.
I did soft reset my phone, thinking maybe some app I downloaded could be interfering, but it also did not change anything. Also hard-reset, but no change either.
I've already tried replacing the circuit board with the USB plug but that also didn't change anything.
The only time USB works is in EDL mode, which shows expected behaviour. PC recognizes the "Qualcomm HS-USB QDLoader 9008 (COM3)" port and with QFIL I can navigate through partitions and stuff seems to work.
I would try installing a different ROM, but as I would need to cross-flash to unlock bootloader (default ROM does not enter fastboot) I am stuck on the USB issue now.
Has anyone seen something like this? Any suggestions to what I could try?
lucaslittermentz said:
Hi all.
I have a wonderful LG G7 (model G710EMW from Brazil carrier Claro).
Recently I've tried to connect it to my new car audio system that supports Android Auto and it didn't work as expected. Long story short, I've discovered that USB does not work on my phone.
Charging works alright, but anything that requires an USB connection simply does not work.
When I connect my phone to my PC, the phone starts charging, never shows the "USB connection" notification icon and the PC does not recognize anything. The phone also does not allow me to choose the kind of USB connection that is to be used (you know, MTP and the other options). When connected to PC through USB cable it displays exactly the same behaviour as if it was connected to a regular charger.
I have tried different cables, being two LG original USB-C to USB-A cables, an USB-C to USB-A from Xiaomi and a generic brand USB-C to USB-A charging and data cable. All of them show the same behaviour.
I did soft reset my phone, thinking maybe some app I downloaded could be interfering, but it also did not change anything. Also hard-reset, but no change either.
I've already tried replacing the circuit board with the USB plug but that also didn't change anything.
The only time USB works is in EDL mode, which shows expected behaviour. PC recognizes the "Qualcomm HS-USB QDLoader 9008 (COM3)" port and with QFIL I can navigate through partitions and stuff seems to work.
I would try installing a different ROM, but as I would need to cross-flash to unlock bootloader (default ROM does not enter fastboot) I am stuck on the USB issue now.
Has anyone seen something like this? Any suggestions to what I could try?
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Click to collapse
Hi bro, i'm from brazil too, have you tried reinstall usb drivers? have you tried on another pc? If you are using Windows 10, check on Windows update if its not blocking the drivers
danielcs1995 said:
Hi bro, i'm from brazil too, have you tried reinstall usb drivers? have you tried on another pc? If you are using Windows 10, check on Windows update if its not blocking the drivers
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Click to collapse
I did try on another two different computers, all on Windows 10, and none of them recognized the phone except when the phone was in EDL mode.
I haven't tried installing drivers for the phone, before when it worked I never had to manually install anything for the PC to recognize my phone.
I'll give that a go, thanks!
lucaslittermentz said:
I did try on another two different computers, all on Windows 10, and none of them recognized the phone except when the phone was in EDL mode.
I haven't tried installing drivers for the phone, before when it worked I never had to manually install anything for the PC to recognize my phone.
I'll give that a go, thanks!
Click to expand...
Click to collapse
Just to let you know, I could not find the USB driver for regular usage of the phone connected to the PC. What I found was drivers to use the phone with ADB and drivers for EDL mode.
I got to test the phone on a Linux Manjaro installation and there the computer also did not recognize any new device with "lsusb" command, whereas using a working LG G7 ThinQ the output of "lsusb" was:
Code:
Bus 001 Device 004: ID 1004:61f9 LG Electronics, Inc. Optimus (Various Models) MTP Mode
Note: the working phone had the USB connectivity option set to "Charge only" (or something like that, my phone is in Portuguese).
Hi , my Poco F3 arrived today and i was very hyped to use it but i've come into a problem.
Neither my win10 laptop or my F3 can identify each other when i connect them via USB, i can't even find it on the device manager, on my sister's laptop it connects and identifies weirdly enough but that's an older laptop is really slow and unreliable for anything specially since its not mine.
My laptop is a new one 2020 model and it connects well to any other device ...
I've tried replugging 100 times and i've made sure USB debbuging was toggled on my poco, also made sure the usb config was on file transfer, i've tried installing various ADB drivers too but it didn't help.
Can anyone please help me out with this , the poco f3 is my first android device and i really wanted to put other roms and use the ADB fastboot tools to debloat it but without connecting it with my laptop its gonna be very hard ...
Use official USB cable. Don't use a USB hub. Connect directly to the laptop. Change a USB port.
Plug your phone USB cable to laptop, switch file transfer mode on phone drop down menu, then reboot your laptop without disconnecting your phone from laptop.
Right click on the windows button on the task bar. Click on device manager. Does any device appear on their when the F3 is plugged in. Also as said above directly connect to a PC usb port rather than through a hub (maybe use a Usb c to usb c cable if your laptop only has usb c ports)