Hey guys i'm trying to unlock bootloader and flash the latest version but my devices is not recognised in fastboot. I do have the Android Bootloader Interface show up in drivers but when I use the command /adb devices, nothing show up in the list. In fastboot I have "Connect USB Data Cable" text but no matter how many times I had it replug or switch USB, the same error. I'm pretty sure there's nothing wrong with the cable because I can use it in normal mode.
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Hi guys ,my problem is that when I connect my phone via USB cable at first there is no problem, data transfer , windows mobile device center, everything is OK. But when I want to flash the phone pressing vol-down + switch on/off keys the phone is not connected to the PC. And I can't flash it. Also the phone wouldn't like charge trough the charger ,only with the data cable. Is it possible to have any liaison between the problem with charging with charger and no-connection when try to flash.
Also my phone was to the service for touch-screen change ,is it possible the technician make any mistake ? Cause I think that if he make a mistake with the connector nothing gonna work ,but it works at different situations.
Regards!
check to be sure USB SYNC driver installed correctly and also try a different usb cable.
I'll try but there is no logic ,the cable works when charge the phone, works when is connected to device manager but doesn't works when flashing ?
exactly. the device requires different drivers.
1. there is internet sharing and disk mode (which works with all computers, because those drivers are in the operating system)
2. then there is one driver for syncing
3. and another one for flashing
it is not the same kind of data transfer, which is why you need a different driver. but the thread "[tut] updating htc sync drivers" should cover all your windows vista/7 driver needs and a tutorial on how to install them, which in case of a x64 system can be fairly complicated.
if you already have hspl installed (which you can determine by entering bootloader mode and looking whether it says 1.56Olinex), you can also flash using the sd car method. put a rom of your choice on the sd card, name in BLACIMG.nbh and enter bootloader mode, you will be presented with options to flash the rom.
Ok, but in instructions at the thread you give me is written that I have to start making the steps after I see "USB" on the flashing screen. But I don't see it, it's only "Serial". And now what ? I know that if on the screen i written "USB" the phone and the computer are connected and there is no problem to flash ,but now what ?
well, before you start, put your device into bootloader mode. it will show "serial", then connect it to the pc. test your connection using mtty 1.42 (you'll find several download options here in the forum).
the connection settings for mtty are USB 115200-8-1-No-NONE-None
if it works, connect and press enter, the command shell should show USB> then.
if usb is not present in the connection settings, your connection is not established yet. proceed with the tutorial then. during the entire procedure, the device should remain connected to the pc in bootloader mode, so you install the driver for the right device state.
Hello,
I've problem something like this. Few months ago when i was conecting my phone to computer was everything OK, activesync, disk drive, but now nothing, just charging the phone. I've tryed everything in USB to pc zone, but nothing. When i'm going to bootloader it's writen serial. What can be here?
since you already tried all the different connection methods and even bootloader mode does not connect, there are hardly any options left, where the trouble could be:
- the usb port on the blackstone
- the usb port on the pc
- the cable
you can try another port on the pc (or even better, another pc altogether) and/or another cable, like from a digital camera, an external hdd... (many devices have mini usb cables, you should be able to use either one of those)
- How My Phone Got Bricked?: (Chinese Version Oneplus 2) I Was On Oxygen OS 3.0 And TWRP 3.0 And I Decided To Flash The Resurrection Remix ROM, I Did A Full Wipe And I Installed The Rom And It Failed To Installed The ROM. Now My Phone Is In A Bootloop With No OS Installed. I Have The Chinese Version OP2
- Current State Of My Device: My Device Is In A Bootloop With No OS Installed, I Did Notice That My Phone Was Not Being Recognized VIA Fastboot & ADB On My PC. I Went Fastboot Mode And My Phone Is Not Being Recognized By PC, And I Went To TWRP, ADB Was Not Working And ADB Sideload Is Not Working. I Also Tried A USB OTG With A USB Drive And Still TWRP Recovery Is Not Recognizing It. How Ever When I Connect My Device To PC And Check Device Manager And Press Scan For Hard Ware Changes My Device Shows Up As "COM 1". I Also Did Try To Put My Phone Into Qualcomm Mode Trying Alot Of Key Combinations But My Phone Is Not Getting Into Qualcomm Mode Or It Just Might Be Me Since I Heard Its Tricky For The Phone To Get Into Qualcomm Mode. I Did Try One Click ADB And Fastboot Installed And Qualcomm USB Driver, Still No Luck. And I Did Try The MEGA Unbrick Guide. I Have Tried This With 3 Other Computers Which Are All Running Windows 10 And Turned Driver Signature Enforcement Off And Still No Luck, And Also A PC Running Linux Mint And Still No Luck. Please Help Me And I Will Put All Thanks On All Of Your Replies And I Really Appreciate Your Help!
- Whats Working:
- My Device Charges From The PC And Wall
- I Am Using The Official OP2 Cable
- Can Access Recovery + Fastboot
- Turns On But In A Bootloop
I think it's a bad cable... if you can get into fastboot and the PC with Windows 10 and Linux both don't see it.. cable
Not sure whats needed on windows, since I never use it....but after a fresh install of Ubuntu 16.04 a few days ago, I did have to install a few adb and fastboot packages before my devices were recognized. Do you know if the adb/fastboot packages and they're dependencies are installed on the Linux mint computer?
If yes, power off phone and plug into computer. Then start phone in fastboot mode. Open a terminal on the PC and run "adb devices" (without quotes of course) .....any output on screen?
foomanjackel said:
Not sure whats needed on windows, since I never use it....but after a fresh install of Ubuntu 16.04 a few days ago, I did have to install a few adb and fastboot packages before my devices were recognized. Do you know if the adb/fastboot packages and they're dependencies are installed on the Linux mint computer?
If yes, power off phone and plug into computer. Then start phone in fastboot mode. Open a terminal on the PC and run "adb devices" (without quotes of course) .....any output on screen?
Click to expand...
Click to collapse
Yeah I did try typing ADB devices and Fastboot devices in both twrp and fastboot. I think the issue might be the cable
evertking said:
I think it's a bad cable... if you can get into fastboot and the PC with Windows 10 and Linux both don't see it.. cable
Click to expand...
Click to collapse
Yeah I think the cable is probably the problem. Although my phone chargers with the cable. I will look into buying a new cable soon but its a little expensive. I will try to buy it next week
fahad999 said:
Yeah I think the cable is probably the problem. Although my phone chargers with the cable. I will look into buying a new cable soon but its a little expensive. I will try to buy it next week
Click to expand...
Click to collapse
I'm sure you been reading and seen people with the same cable as ours with the same problem.. works with charging but not adb or fastboot. But you can try to issue a command with it.. fastboot devices does sometimes come back empty.. just try to do OEM unlock for example.
evertking said:
I'm sure you been reading and seen people with the same cable as ours with the same problem.. works with charging but not adb or fastboot. But you can try to issue a command with it.. fastboot devices does sometimes come back empty.. just try to do OEM unlock for example.
Click to expand...
Click to collapse
My cable did used to work with adb and fastboot before, and I did unlock the bootloader with it before. I think now the cable got broken
Same issue working cable
Same issue... but my cable is working fine. I have a 2nd OP2 and tried the qualcomm connect with my cable and volume up, and worked perfect. More over, I swapped motherboards and still didnt work. I have access to twrp on the phone and I can get into fastboot. But no way to connect to my pc
I am trying to recover the data from my old bootlooping LGV20. My drivers are updated. When I plug my current, working LGV20 into the computer, the phone is immediately recognized and the driver is listed as LG v4.2.0, the most current in Device Manager. The phone is labled as its model number in Devices and Printers. When I plug in my old V20 (which has full access to stock recovery and download mode but does not boot) the computer recognizes something is plugged in, but in Device Manager the device doesn't show up. In Devices and Printers the phone shows up, but as "LGE Android Phone".
Summary:
When a working LGV20 is plugged in, it is recognized and the latest 4.2.0 driver is used.
When the bootlooping phone is plugged in and completely off, it is only recognized as "LGE Android Phone"
Not recognized in Recovery mode
Because of this issue, I cannot use adb on the phone to recover my data.
The phone is stock, non-rooted, android 7, LG-VS995. I have the usb debugging option in the recovery menu though the phone bootloops when this is selected.
ADB installed via 15 second installer and SDK.
"ADB Devices" returns nothing.
When in Download mode, "Fastboot devices" returns nothing.
This issue was repeated on a second computer.
USB 2.0 and 3.0 tried.
The phone is recognized in LGMobileSupportTool
In Download mode the phone is recognized as "LGE AndroidNet" in Devices and Printers and as a COM41 port (changed from 7) in Devices and printers.
What do? I'm at a loss and it feels like I've tried everything.
Edit: I've successfully dumped the phone via LGUP, tried flashed a new image, phone is still bootlooping. Is there any way I can browse the userdata dump file?
I have installed all the drivers needed and my devices have been connected, but after I enter Fastboot mode and I plug the computer and then open the mi unlock tool, my devices are immediately not detected. is there a solution to this problem?
Test an other usb port not 3.0.
You can see here
https://forum.xda-developers.com/redmi-note-7/help/unable-to-unlock-bootloader-t4046611
So I have this strange issue, when i connect my phone windows says "Usb device not recognized" and my phone is just charging without any notification for file transfer option. even tried usb debugging no results. When connected in fastboot mode windows doesnt even show usb device not recognized. no action in windows. I have tried almost all basic fixes and also have replaced the entire charging board. The bootloader is locked.... and i wanted to mod the phone but unfortunately it doesnt connect to pc.