hello,
guys my android phone canvas spark is totally dead after a rom installation but whenever i connect it to the pc a connection notification sound pops up.
but to flash an another rom I have to switch off my phone but how should I switch off my phone with blank screen which is not turning on and my battery is in-built.
how can i identify that my phone is off by connecting it to my pc.
dthackandjob said:
hello,
guys my android phone canvas spark is totally dead after a rom installation but whenever i connect it to the pc a connection notification sound pops up.
but to flash an another rom I have to switch off my phone but how should I switch off my phone with blank screen which is not turning on and my battery is in-built.
how can i identify that my phone is off by connecting it to my pc.
Click to expand...
Click to collapse
Try connecting to adb and type:
adb devices
if your device is connecting it will list your device. If you are connecting correctly then try the commands in the link below to see if you can use one of its modes to fix the device.
http://zidroid.com/boot-android-devices-to-download-fastboot-recovery-mode-using-adb/
The device can be powered on without the power button with the command:
adb reboot
you may have to run the sudo command before the adb reboot command works.(this may not work on all devices)
Related
Hi Guys,
I've had a few problems with my N5 recently...
If I plug my N5 into my PC via the stock USB cable and boot into the Bootloader (PWR+VOLDN) then it will allow me to flash the original N5 firmware, located here: https://developers.google.com/android/nexus/images, this would indicate to me that there is no issue with the actual devices ability to transfer files via USB connection... Right?
No!
For some strange reason my phone will allow me to push a full factory image to it and will also process any Fastboot commands that are sent to it but as soon as you boot into something like TWRP and try to control the phone's ADB functionality it will not find the device at all! The new MTP option in TWRP 2.8 will allow my computer to see my phone's MTP connection for about 1 second and then will immediately disconnect, the same happens when trying to connect to MTP from within Android too.
USB debugging doesn't show that it is connected when my phone is plugged into my PC and Windows makes the 'device connected' sound and then straight after makes the 'device disconnected' sound...
Any ideas? I am certain that this is an issue with my handset's hardware or software rather than any of the computers or cables... I have tried 3 different cables (including the stock cable) and also three different computers (Windows 8.1 @ Work, Mac OS X @ Work and my own personal PC running Windows 8.1 & Ubuntu @ Home)... All OSs and all computers run into exactly the same issue, device connects briefly and then disconnects.
I have troubleshooted issues relating to the driver. This is not the issue... Device Manager cannot even see the hardware after the disconnect.
Thanks for any help in advance,
Lewis
Also:
-Android does not detect that the USB is charging the device unless the device is booted with the cable attached (if it's not attached before the 'Google' screen then it can't see the USB input at all, within android or TWRP, of course...).
Having the exact same problem. Did you find a solution?
EvilBetty said:
Having the exact same problem. Did you find a solution?
Click to expand...
Click to collapse
It's most likely a driver issue.
Elluel said:
It's most likely a driver issue.
Click to expand...
Click to collapse
Not a driver issue.
3 different Nexus 5s, 5 different workstations. Other two Nexi are fine on all 5 PC's.
1 PC used for ADB forensics, 2 used for ADB development work, one known working for ROM'ing / rooting.
Phone has been factory reset, factory ROM'd from Fastboot. Connects fine on Fastboot. Will not connect on ADB / MTP.
On a fresh PC / phone reboot, the PC will detect the phone for just a second and then it will not reconnect until process is completed.
-EB
What's your adb version?
Went on for about 2 weeks, then suddenly went away on its own. I have no idea what the problem was or the solution. Sorry.
i have a nexus 5 which has stock ROM and blu spark kernel . i locked the bootloader while on the same kernel and again unlocked it . . the phone is bootlooping into twrp and the google logo . in twrp it says unable to mount data . i can access twrp . . i am unable to flash anything . it says unable to mount data/ . please the attachment
Dear all,
Please Help me. My One plus one is on CM12 official rom (rooted). Problem is when I connect my phone to computer and use ADB it is detected (adb devices: number & devices detected) but when in fastboot (fastboot devices : nothing is detected) I check in my device manager (yellow triangle on android ) My problem is why CAN it be detected when my phone is on but NOT during fastboot.
Necessary checks done : USB debugging, Universal driver, SDK installed, USB driver reinstalled again, tried changing usb ports on computer, tried on 2 laptops)
I am helpless, tried checking on forums can not find the answer.
CalvinVeez said:
Dear all,
Please Help me. My One plus one is on CM12 official rom (rooted). Problem is when I connect my phone to computer and use ADB it is detected (adb devices: number & devices detected) but when in fastboot (fastboot devices : nothing is detected) I check in my device manager (yellow triangle on android ) My problem is why CAN it be detected when my phone is on but NOT during fastboot.
Necessary checks done : USB debugging, Universal driver, SDK installed, USB driver reinstalled again, tried changing usb ports on computer, tried on 2 laptops)
I am helpless, tried checking on forums can not find the answer.
Click to expand...
Click to collapse
Have test to fastboot commands?
In fastboot be unplugged
Write
fastboot reboot
for test
Will answer wait for device
Plug device to test
My pc also does not recognise but work fine
with commands
geowolf1000 said:
Have test to fastboot commands?
In fastboot be unplugged
Write
fastboot reboot
for test
Will answer wait for device
Plug device to test
My pc also does not recognise but work fine
with commands
Click to expand...
Click to collapse
Tried adb reboot bootloader then phone boots into fastboot mode but from here..
is total no connection. Tried checking fastboot devices (nothing), fastboot reboot (waiting)
then i tried as u said unplug & plug in (not recognize) from here adb cannot be written anymore. (no more commands can be typed). Tried others like down loading Pdanet ,force install driver..Nothing works. Thinking ,did I corupt the bootloader while I was rooting it last time.?
I think if something was wrong with bootloader you could not either boot .
Do you use antivirus to pc?
Try without antivirus
What happening the false is from computer
Mine is reverse issue. When in fastboot mode, pc recognizes OPO, but when OPO is normally connected to pc, adb is not working. Its charging and can transfer data through USB, but OPO is not recognized through adb commands. Device Manager too recognizes my OPO only when it is in fastboot mode and not when normally connected via USB for data transfer.
I have a software, through which I can REVERSE TETHER my PC's internet to my mobile via USB. Because my OPO is not recognized via USB in normal mode, I can't do that. Any idea, what's wrong with my OPO.
(I have installed Android SDK and google usb drivers, for my OPO to work in fastboot. I have rooted. My pc runs on win7)
mrsureshisha said:
Mine is reverse issue. When in fastboot mode, pc recognizes OPO, but when OPO is normally connected to pc, adb is not working. Its charging and can transfer data through USB, but OPO is not recognized through adb commands. Device Manager too recognizes my OPO only when it is in fastboot mode and not when normally connected via USB for data transfer.
I have a software, through which I can REVERSE TETHER my PC's internet to my mobile via USB. Because my OPO is not recognized via USB in normal mode, I can't do that. Any idea, what's wrong with my OPO.
(I have installed Android SDK and google usb drivers, for my OPO to work in fastboot. I have rooted. My pc runs on win7)
Click to expand...
Click to collapse
Install pdanet+ for win
HI,
i was replacing the screen and suddenly my phone went in coma the sreen has been changed but no recovery or fast boot is accessible and even my pc is detecting it as mtp device and in adb cmd it says unauthorized or offline i need your help or my brother will kill me:crying::crying::crying: please help asap
i tried the hardbrick method but the driver installation dint succeed and the phone is still recognized as android device or mtp device.
MTP device and adb recognizes it means the phone is running fine! Check the display it sounds like it's issue.. And also when connected to PC try holding down power button and see if mtp device indication goes away (hold it for like 10 secs)
Transmitted via BACON
I have a Huawei p20 with a broken screen and the touch does not work, after research I discovered that the only solution to get all my data back is via adb (and perhaps also fastboot), only that when I connect it to the pc it gives access, it recognizes the but the device is unauthorized instead in recovery mode it does not recognize it, but if I try it in fastboot mode it recognizes it as fastboot, how can I use adb?
Noristay said:
(...) when I connect it to the pc it gives access, it recognizes the but the device is unauthorized instead in recovery mode (...)
Click to expand...
Click to collapse
Maybe you will find something interesting in the thread:
Bypass secure USB debugging prompt on phone with broken screen
Hello everyone, I have a Samsung Galaxy S II (I9100) with Cyanogenmod 11 (Snapshot M12) installed. Recently I dropped my phone and the screen was completely shattered. The display does not work, neither does the touch. However, the phone works...
forum.xda-developers.com
ze7zez said:
Maybe you will find something interesting in the thread:
Bypass secure USB debugging prompt on phone with broken screen
Hello everyone, I have a Samsung Galaxy S II (I9100) with Cyanogenmod 11 (Snapshot M12) installed. Recently I dropped my phone and the screen was completely shattered. The display does not work, neither does the touch. However, the phone works...
forum.xda-developers.com
Click to expand...
Click to collapse
unfortunately this post doesn't help me, as it tells them how to activate usb debugging, my problem is that when i'm in recovery it doesn't show me that my device when i type adb devices command
Looks USB is OK, because Fastboot works. But I guess that ADB isn't properly installed, especially ADB Verification failed. So you can't successfully run ADB, neither when phone is in normal mode nor when in recovery mode
Hi Guys , Have pixel 3 I cannot connect my device to PC as MTP but it can do bootloader mode when tap out the battery and put it back that strap and then plug on USB so it will work I found this solution after few months, but when I boot twrp I cannot access otg,and mtp enables unable to mount storage USB it not detected simply ,
I cannot make sideload or adb push anything my PC only detected on bootloadee mode after recovery it get ejected no recognized ,
I tried to install custom ROM manually like using only fastboot mode but flashing images like system,product,vendor everything needs to be " fastboot d" mode when I get this mode my device get disconnected why this happens to me I changed cables ,
Ports ,latest platform tools but I cannot access userspace or adb please help me I didn't sleep for 2 days its my mom phone.