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I installed "L" on my Nexus 5 when the image was first released, and I've left it on since. The bugs were a minor annoyance to me, and I enjoyed having the latest OS version. Now that the release of "L" is growing closer, I've decided to switch back to stock so that I'll be able to OTA update once it's official. However, I can no longer connect to my computer via USB. The computer will recognize that there is a device attached, but then return Unknown Device. I was able to flash "L" to the phone, and had previous flashed Cyanogen, so obviously it used to connect.
I've done some searching and seen other people with the same problem, so just to cover all of the basic questions, I have done all of the following:
- Rebooting both devices.
- Switching USB cables (7 different cables).
- Tried every USB port on 3 different computers.
- Tried connecting a Nexus 4 and Nexus 7 to ensure the USB ports and cables worked (they worked).
- Switching from PTP "camera" to MTP "media" under USB settings on the phone. Also dev mode.
- Installed the Google USB Drivers.
- Reinstalled the USB drivers for my computer.
- Uninstalled all drivers, rebooted computer and phone, reinstalled drivers.
- And probably some other things I'm forgetting right now.
Questions for anyone who can answer:
1. Other threads have suggested to other people that the USB port on the phone may be hooped. If this is the case, is there any option of sending it back to Google to be replaced/repaired? It was purchased less than a year ago through the Google Play Store.
2. Is there ANY other way to revert to stock Android without plugging in to a computer? I'm worried that I'll be stuck with this dev preview of "L" forever, and that's just unacceptable (not throwing blame, I know it's an at-your-own-risk preview, but I don't want to buy a new phone right now).
Thanks for any help.
Will it recognize itself in ADB or Fastboot mode(Through BL)?
Any commands returns "Error: Device not found."
adb devices returns nothing.
edit: Fastboot DOES recognize it through the bootloader! I hadn't tried that! Frantic tinkering will now ensue, thank you!
My computer for some reason reminded itself of not recognizing my Idol 3 5'5 6045k. Two days ago it was all fine and now everytime i connect it to the computer it only charges. I've tried everything from changing usb cables to unistalling andthen installing the device drivers, enabling debugging, restaring either smartphone and computer. Everything I can think of. Please help me out, I'm trying to root the smartphone and without it recognizing I can't do anything, not even transfer files. :crying:
sdfg said:
My computer for some reason reminded itself of not recognizing my Idol 3 5'5 6045k. Two days ago it was all fine and now everytime i connect it to the computer it only charges. I've tried everything from changing usb cables to unistalling andthen installing the device drivers, enabling debugging, restaring either smartphone and computer. Everything I can think of. Please help me out, I'm trying to root the smartphone and without it recognizing I can't do anything, not even transfer files. :crying:
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Click to collapse
Obvious Question #1: Did you check the phone notification dropdown area to verify the phone is in MTP or PTP mode so it will show up on the pc? As for transfering files...you do have the option of loading up a microsd card with whatever files or installing a wifi adb app to connect wirelessly. You could even use an app like airdroid to let you do all sorts of things.
famewolf said:
Obvious Question #1: Did you check the phone notification dropdown area to verify the phone is in MTP or PTP mode so it will show up on the pc? As for transfering files...you do have the option of loading up a microsd card with whatever files or installing a wifi adb app to connect wirelessly. You could even use an app like airdroid to let you do all sorts of things.
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Therre's no notification after connecting the usb, it just charges the phone, seriously, I've tried everything to enable MTP but nothing does the job. And what do you mean by using an adb app? Can I root my smartphone by a wireless connection?
sdfg said:
Therre's no notification after connecting the usb, it just charges the phone, seriously, I've tried everything to enable MTP but nothing does the job. And what do you mean by using an adb app? Can I root my smartphone by a wireless connection?
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You are overcomplicating things. 1st...there is ALWAYS a notification in the dropdown that says what mode the phone is in....mtp, ptp, charge only or "cdrom mode" which installs the usb drivers. Pressing on that notification allows you to change the mode the device is in.
As for rooting....all you need to do that is to flash or boot TWRP (details on booting it are in the system image thread) and then flash the supersu zip from inside twrp to your device...reboot and done...but I think in the newer TWRP's they even offer options to root automatically...ie the zip is already built in. After rebooting to your phone you install the supersu apk from google play so you can configure what apps have superuser access.
famewolf said:
You are overcomplicating things. 1st...there is ALWAYS a notification in the dropdown that says what mode the phone is in....mtp, ptp, charge only or "cdrom mode" which installs the usb drivers. Pressing on that notification allows you to change the mode the device is in.
As for rooting....all you need to do that is to flash or boot TWRP (details on booting it are in the system image thread) and then flash the supersu zip from inside twrp to your device...reboot and done...but I think in the newer TWRP's they even offer options to root automatically...ie the zip is already built in. After rebooting to your phone you install the supersu apk from google play so you can configure what apps have superuser access.
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I'm telling you, everytime i try to connect my smartphone to the pc nothing shows up, i only notice the device is charging, there's no option anywhere to change it to MTP or Camera or CD ROM... And I've tried 2 different pc's
sdfg said:
I'm telling you, everytime i try to connect my smartphone to the pc nothing shows up, i only notice the device is charging, there's no option anywhere to change it to MTP or Camera or CD ROM... And I've tried 2 different pc's
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Your telling me when the phone is plugged into the pc you don't see the notifications below or some version of them at all? If so then you need to fully uninstall the devices in device manager including remove the drivers...then use the drivers in the system image thread (since you obviously can't use the ones from "cd rom mode" which would be the best solution). USB debugging isn't even an issue yet...your phone should still show up to the pc as a camera device (ptp) under just about ANY scenario using even built in windows drivers.
famewolf said:
Your telling me when the phone is plugged into the pc you don't see the notifications below or some version of them at all? If so then you need to fully uninstall the devices in device manager including remove the drivers...then use the drivers in the system image thread (since you obviously can't use the ones from "cd rom mode" which would be the best solution). USB debugging isn't even an issue yet...your phone should still show up to the pc as a camera device (ptp) under just about ANY scenario using even built in windows drivers.
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Thanks for all those tips, but I already tried that out aswell, 2 times to be precise, deleted all the drivers, rebooted pc and smartphone, tried different cables, but still nothing ever occurs.
sdfg said:
Thanks for all those tips, but I already tried that out aswell, 2 times to be precise, deleted all the drivers, rebooted pc and smartphone, tried different cables, but still nothing ever occurs.
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Have you tried a different cable? Perhaps that one is damaged or is only setup for charging? Only thing I can think of.
And then I realize you mentioned that Not sure what else would prevent it from giving you those options.
I'm also facing similar issue after the 2 update. Were you able to fix this?
http://askubuntu.com/questions/681959/ubuntu-14-04-15-10-android-file-access-issue?s=2|0.2054
Which kind of USB cable(s) have you tried specifically? Were they cheap eBay/generic kinds or well known branded ones?
Something as little as a Micro USB cable can cure a lot of problems. It needs to be a well built one by a known manufacturer to avoid problems.
brian117 said:
Which kind of USB cable(s) have you tried specifically? Were they cheap eBay/generic kinds or well known branded ones?
Something as little as a Micro USB cable can cure a lot of problems. It needs to be a well built one by a known manufacturer to avoid problems.
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Actually I've been having pretty good luck with the $1 ones from Dollar Tree but the key is certainly to try multiple cables....on some the microusb plug will make it difficult to get a solid connection especially if you have a case on the phone.
You may be missing the point of "trying" different cables. It's not so much the "quality" of the cable, it's the fact that some cables are for "power only", and "will not" transfer data, regardless of how hard you try.
You need to be using a "proven" data/power cable, otherwise your beating your head against the table for nothing.
Just to add, I put a piece of red tape on all my usb cables that are power only, no guess work.
I own idol3/moto g 2015 and s3, have no problem with other 2 device. I'm having this MTP issue after the UE40 update. Verified in all 3 OS, adb is detecting the device but not MTP/PTP. Idol3 support is not worthy responses.
http://forum.xda-developers.com/idol-3/general/mtp-issue-ue40-update-t3182564
http://askubuntu.com/questions/681959/ubuntu-14-04-15-10-android-file-access-issue
KashRaman said:
I own idol3/moto g 2015 and s3, have no problem with other 2 device. I'm having this MTP issue after the UE40 update. Verified in all 3 OS, adb is detecting the device but not MTP/PTP. Idol3 support is not worthy responses.
http://forum.xda-developers.com/idol-3/general/mtp-issue-ue40-update-t3182564
http://askubuntu.com/questions/681959/ubuntu-14-04-15-10-android-file-access-issue
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Well, USB works fine here, and I've had 5 different rom's, 2 Canadian, 2 US, and the Chinese rom, on this phone without any USB issues, sorry, can't help any further.
After a complete wipe and restore, it worked.
sdfg said:
My computer for some reason reminded itself of not recognizing my Idol 3 5'5 6045k. Two days ago it was all fine and now everytime i connect it to the computer it only charges. I've tried everything from changing usb cables to unistalling andthen installing the device drivers, enabling debugging, restaring either smartphone and computer. Everything I can think of. Please help me out, I'm trying to root the smartphone and without it recognizing I can't do anything, not even transfer files. :crying:
Click to expand...
Click to collapse
I had the same problem as well. It only showed charging when I plugged in the USB cable. Tried switching cables, turning off and on USB debugging but nothing worked. I finally just rebooted the phone and then it worked again. Strange that it suddenly stopped.
I have a different issue; the different USB modes work fine but I don't have the 'cdrom' option in the USB mode dialog. I've tried various Alcatel ADB drivers that I have found and none are working, using Win7 64. My Idol 3 4.7 is 6039I (US).
Answered my own question, simply install the Mobile Upgrade Q software.
nope, doesn't show up. it's a bug. i had it before, googled until i found a fix and got it working, now it's back to not being recognized. nothing shows on drop down menu.
I've had my OPO for a little over 7 months now. My issue began when I had my desktop at a friend's house and plugged my phone into a USB 3.0 port to grab some videos off the phone when the phone suddenly shut off and would not turn back on. I thought it was bricked somehow but after leaving it plugged into a USB 2.0 port for some time, the charging screen came on and I was able to turn the phone on, but since then both OTG and MTP/PTP transfer doesn't work. If/when the phone is plugged into a computer, it gives an error and Device Manager shows
"Port_#0001.Hub_#0004 Unknown USB Device (Port Reset Failed)" and I'm not only able to charge the phone with one out the dozens of micro usb cables I have. I've tried several cables and a handful of different computers and OSs (Windows 7,8,8.1,10, Ubuntu 15.04, Kali Linux) all to the same result.
I'm running COS 12.1-YOG4PAS3JL, rooted, and have TWRP installed. The phone doesn't show up when in Fastboot mode or the bootloader either. Nothing changes when I disable or enable USB Debugging as well. With DriveDroid if I set the USB system to "Standard Android" the phone reboots and that seems like the closest I've been able to get to any kind of progress. I've gone through unbricking threads as well as Googled until my fingers bled but I'm yet to find anyone with a similar situation where the phone isn't bricked, the micro usb port isn't broken, I can't pick between MTP or PTP mode (USB Connection just says USB is now disconnected), and I'm not running a custom ROM. I tried replacing the micro usb on the phone so I now know that it wasn't that that's been messed up but I'm not sure where to go from here. Any suggestions or help is greatly appreciated.
I've been having this problem for a long time, can't remember how much exactly. No matter what I've tried, I haven't managed to get my computer recognize my opo. I am still running Cyanogen 13.0, as it was the latest OTA update I got.
When I connect it via usb, absolutely nothing happens (I've also tried two cables). I have the device manager open and it doesn't even flash as it used when I had similar problems, which means that the device is not recognized at all. Therefore, I cannot find/update/remove the drivers anyhow.
Developer options on my phone have a bunch of things but none seems relevant, apart from open/close Android debugging (adb) and select USB Configuration (Charging/MTP/PTP etc). I've tried several options, nothing seems to change.
I've also installed some Windows MTP drivers (see here) which were supposedly solving the issue caused by a Windows 10 update, but no luck (which could have been the issue, but can't be sure-I can't remember the last time I was able to browse my phone's memory).
Any ideas?
tony.crete said:
I've been having this problem for a long time, can't remember how much exactly. No matter what I've tried, I haven't managed to get my computer recognize my opo. I am still running Cyanogen 13.0, as it was the latest OTA update I got.
When I connect it via usb, absolutely nothing happens (I've also tried two cables). I have the device manager open and it doesn't even flash as it used when I had similar problems, which means that the device is not recognized at all. Therefore, I cannot find/update/remove the drivers anyhow.
Developer options on my phone have a bunch of things but none seems relevant, apart from open/close Android debugging (adb) and select USB Configuration (Charging/MTP/PTP etc). I've tried several options, nothing seems to change.
I've also installed some Windows MTP drivers (see here) which were supposedly solving the issue caused by a Windows 10 update, but no luck (which could have been the issue, but can't be sure-I can't remember the last time I was able to browse my phone's memory).
Any ideas?
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If win10 causing that much issues,why don't dual boot win7 alongside?
Edit- I personally use Win8.1 Pro and it works fine without any issues.
I've been running Windows 10 insider builds for a while and run Into the same issue at some point, I'm not sure on which build you are currently on, I've reported that on the insider HUB but got no reply. I found a "solution" which is selecting PTP in the options and the phone will be mounted as a media device and you'll be able to access DCMI folder and pass files. It doesnt mount always, but you need to try some extra times.
Another workaround is to use an USB drive and the use an OTG cable.
Apparently, it was just the cables' fault. I didn't figure it out immediately, as I had two faulty cables instead of one, but after all I came over a working one and the opo was recognized and mounted as usual.
Thanks anyway
tony.crete said:
Apparently, it was just the cables' fault. I didn't figure it out immediately, as I had two faulty cables instead of one, but after all I came over a working one and the opo was recognized and mounted as usual.
Thanks anyway
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Cheers!
tony.crete said:
Apparently, it was just the cables' fault. I didn't figure it out immediately, as I had two faulty cables instead of one, but after all I came over a working one and the opo was recognized and mounted as usual.
Thanks anyway
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I wish I had the same issue ?
Hello there! I posted in the N00B thread without any success and so am casting a wider net:
I have a rooted phone that's been working well for about 1.5 yrs and all of a sudden it's not able to connect to the computer via USB. It was working fine til about 3 months ago, no new apps or changes to the system as far as I know. It still charges when connecting to the computer but I don't get the prompt to choose the USB mode and the computer doesn't recognize it as any sort of device. I've tried it on several computers that have recognized it in the past without luck (drivers up to date) and have tried different USB cords.
I've gone to USB and developer settings and changed and restored default settings for USB connection as well as toggled a bunch of other settings in that section.
I've wiped the Cache and Davlik Cache several times.
I cleaned out the physical port. Any other thoughts? thanks!
If you are on windows 10 PC, the latest windows updates could be an issue. I faced the same issue with my computer. After rolling back windows update (or may be resetting the PC to default settings) has helped resolve my issue and i could connect my phone again normally. It is nothing to do with your phone as far as i know.
shokod said:
Hello there! I posted in the N00B thread without any success and so am casting a wider net:
I have a rooted phone that's been working well for about 1.5 yrs and all of a sudden it's not able to connect to the computer via USB. It was working fine til about 3 months ago, no new apps or changes to the system as far as I know. It still charges when connecting to the computer but I don't get the prompt to choose the USB mode and the computer doesn't recognize it as any sort of device. I've tried it on several computers that have recognized it in the past without luck (drivers up to date) and have tried different USB cords.
I've gone to USB and developer settings and changed and restored default settings for USB connection as well as toggled a bunch of other settings in that section.
I've wiped the Cache and Davlik Cache several times.
I cleaned out the physical port. Any other thoughts? thanks!
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You said the drivers were up to date but you didn't say whether you tried completely uninstalling the drivers. If you didn't, uninstall every driver you can find related to the Honor, reboot and plug the phone back in. I'm running the absolute latest version of Windows 10 and have no problem connecting my wife's Honor 8.
gdp1979 said:
If you are on windows 10 PC, the latest windows updates could be an issue. I faced the same issue with my computer. After rolling back windows update (or may be resetting the PC to default settings) has helped resolve my issue and i could connect my phone again normally. It is nothing to do with your phone as far as i know.
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Click to collapse
Thanks for your suggestion - I did try rolling back the update without benefit. Also, to reiterate - this is not being recognized by several computers (including a Mac) and that leads me to believe that it's the phone that's the source of the issue. I don't even get the USB menu (Charging, MTP transfer, debug mode, etc) when I plug it into several different computers.
Tel864 said:
You said the drivers were up to date but you didn't say whether you tried completely uninstalling the drivers. If you didn't, uninstall every driver you can find related to the Honor, reboot and plug the phone back in. I'm running the absolute latest version of Windows 10 and have no problem connecting my wife's Honor 8.
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Thanks for your reply- I uninstalled all the drivers and still nothing when I plug the phone in, after a reboot. Also, to reiterate - this phone is not being recognized by several computers (including a Mac) and that leads me to believe that it's the phone that's the source of the issue. I don't even get the USB menu (Charging, MTP transfer, debug mode, etc) when I plug it into several different computers.
It may be too obvious but did you try another USB cable? If it's not the cable try this with the default dialer *#*#2846579#*#* then select in background>usb hisuite, connect the cable and see what happens.
Tel864 said:
It may be too obvious but did you try another USB cable? If it's not the cable try this with the default dialer *#*#2846579#*#* then select in background>usb hisuite, connect the cable and see what happens.
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I have tried different cables but no suggestion is too obvious! My sister in law actually also has an Honor 8 and her cable on my laptop is recognized, so that's what I've been using to troubleshoot with my phone. I did go into that menu you suggested and I tried toggling HiSuite, Manufacture, and Google and exit the menu and still nothing when I connect the cable (other than charging). Thanks
shokod said:
I have tried different cables but no suggestion is too obvious! My sister in law actually also has an Honor 8 and her cable on my laptop is recognized, so that's what I've been using to troubleshoot with my phone. I did go into that menu you suggested and I tried toggling HiSuite, Manufacture, and Google and exit the menu and still nothing when I connect the cable (other than charging). Thanks
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Have you played with any of the developer options like USB Debugging or USB configuration...... Nevermind, just re-read your original post. I was almost sure the dialer thing would fix it but if a reset won't I'm at a loss. I still don't think that it's a hardware problem but I guess it could be. There are things like wiping the cache partition that I see some folks have used for various problems. That would be an option that wouldn't affect your apps.