Related
I took the OTA to 4.3 on my Nexus 7. It was previously unlocked and rooted, but had no kernels, etc changed. After the update ran, I lost root as expected, however, in trying to get it back, I've discovered I'm having a couple of other issues.
First, the device is no longer working properly via USB on my PCs. On both my Win 7 and Win 8 PCs, the device won't properly connect to where I can browse files or anything else. On the Win 8 computer, I see a Nexus 7 device in Device manager, but drivers won't install. I downloaded the drivers from the Asus site, but trying to manually install them doesn't work on the Win 7 machine, and on the Win 8 machine, they install but don't seem to be working with the Nexus 7 as it still shows a problem in Device Manager.
The tablet also will not boot into recovery mode. I can power it up into fastboot mode, but if I select "Recovery Mode" and hit the power button, I just got the Android with the red triangle for a few minutes before it boots back into the OS. After doing some searching, I saw where you might need to have it plugged into a PC to get it to go into recovery, but that doesn't work, either (might be tied to the USB problem).
Ideas?
Did you turn on developer options, and USB debugging? Have you tried USB connection type PTP instead of MTP?
If you have the stock recovery, the red triangle and Android are normal. You can bring up a blue options menu by pressing the power and volume up buttons from the red triangle Android.
Sent from my rooted Nexus 7 @ 49.4 mpg
exglynco said:
Did you turn on developer options, and USB debugging?
Sent from my rooted Nexus 7 @ 49.4 mpg
Click to expand...
Click to collapse
Yes.
Try another driver source. Wugfresh's installation is a lot tougher than Skipsoft's, but try the other guy 's system.
Sent from my rooted Nexus 7 @ 49.4 mpg
exglynco said:
Try another driver source. Wugfresh's installation is a lot tougher than Skipsoft's, but try the other guy 's system.
Sent from my rooted Nexus 7 @ 49.4 mpg
Click to expand...
Click to collapse
I was using the stock drivers off the Asus page. I'll look around for the two you mention. I assume they're posted on here somewhere.
And about the recovery just try flashing another recovery from fastboot
Code:
fastboot flash recovery recovery.img
Sent from my Nexus 7
Red Devil said:
And about the recovery just try flashing another recovery from fastboot
Code:
fastboot flash recovery recovery.img
Sent from my Nexus 7
Click to expand...
Click to collapse
Without USB access? That's my dilemma.
OK, I'm getting closer. I got TWRP installed and rerooted it. I had to do the "Revoke USB debugging authorizations" on the Dev Options screen. Then it would work via ADB.
Still not browsing files yet on my desktop, but at least I know I'm talking to it. So now I'll play with the driver installation a bit.
EDIT: Well, drivers reinstalled for about the 4th time, and it's still not allowing me to browse files from my desktop. Galaxy S4 works fine as soon as I plug it in, even if I also uninstall it's drivers. Ideas? I obviously have it working over USB because I can give it commands and reboot it via the PC.
OK, try this one. Plug in your tablet to pc, go to hardware manager, find your Android Device then choose Uninstall (choose Remove all drivers for this device), unplug and plug in your tablet again. Your Windows should discover few new devices (mine has discovered three) and download drivers for them then you should see Android ADB Interface in Android Devices and Nexus 7 in Mobile Devices.
--edit--
I've solved my issue
http://forum.xda-developers.com/showthread.php?p=44322739#post44322739
Already been done that road multiple times.
have the same problem except one thing: no one 3 computers don`t detect my nexus. have no reaction in device manager, on connection nexus as mtp/debug/fastboot. Only usb-otg works.
xxut said:
have the same problem except one thing: no one 3 computers don`t detect my nexus. have no reaction in device manager, on connection nexus as mtp/debug/fastboot. Only usb-otg works.
Click to expand...
Click to collapse
After you plug your nexus in have you unlocked the screen to see if it is asking you to authorize the tablet?
What other steps have you taken? Have you installed proper drivers? Have you manually chosen to update drivers with the sdk drivers if in device manager is showing the nexus? Have you tried the drivers from Asus?
Sent from my Nexus 7 using Tapatalk 4 Beta
SlowCobra96 said:
After you plug your nexus in have you unlocked the screen to see if it is asking you to authorize the tablet?
What other steps have you taken? Have you installed proper drivers? Have you manually chosen to update drivers with the sdk drivers if in device manager is showing the nexus? Have you tried the drivers from Asus?
Sent from my Nexus 7 using Tapatalk 4 Beta
Click to expand...
Click to collapse
I personally did all of those things. After having the Nexus "forget" all the other PC authorizations on the dev screen, I finally got it to accept ADB commands, just not to properly install drivers that would allow me to browse files like it had done on 4.2.
SlowCobra96 said:
After you plug your nexus in have you unlocked the screen to see if it is asking you to authorize the tablet?
What other steps have you taken? Have you installed proper drivers? Have you manually chosen to update drivers with the sdk drivers if in device manager is showing the nexus? Have you tried the drivers from Asus?
Sent from my Nexus 7 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Nexus doesn`t appears in device manager. At all. It starts to charage, but no reaction in device manager, no any reaction(except charging) at nexus. On computer it looks like i didn`t connect anything. I`ve trying to intall drivers as legasy hardware, but nothing changes. Sorry for my english.
xxut said:
Nexus doesn`t appears in device manager. At all. It starts to charage, but no reaction in device manager, no any reaction(except charging) at nexus. On computer it looks like i didn`t connect anything. I`ve trying to intall drivers as legasy hardware, but nothing changes. Sorry for my english.
Click to expand...
Click to collapse
Try turning off usb debugging. My tablet cannot connect to pc but with usb debugging off it at least recognises tablet as a media device and this enables me to view its files
.but still the problem of not being able to root
When I plug in my nexus4 to a computer it wont show up...most of the time.
I've used 3 different cables.
4 different computers, running, linux mint, win7 and XP.
I installed clocwork mod recovery today and then it showed up as a new device on a XP copmuter but then it would never show up again.
I'm rooted, running carbon ROM, usually with TWRP recovery but switched today.
I've tried it in MTP and PTP modes, debugging on and off.
it charges just fine from a PC.
any ideas are appreciated.
setherd said:
When I plug in my nexus4 to a computer it wont show up...most of the time.
I've used 3 different cables.
4 different computers, running, linux mint, win7 and XP.
I installed clocwork mod recovery today and then it showed up as a new device on a XP copmuter but then it would never show up again.
I'm rooted, running carbon ROM, usually with TWRP recovery but switched today.
I've tried it in MTP and PTP modes, debugging on and off.
it charges just fine from a PC.
any ideas are appreciated.
Click to expand...
Click to collapse
Have you installed the drivers properly?
Pipusz said:
Have you installed the drivers properly?
Click to expand...
Click to collapse
For some of the computers. Today I'm at work and I don't have the drivers installed. I keep my phone plugged in to charge. In the past the PC, running windows XP, always pops up the new device found notification. It won't even do that except for the 1 time mentioned earlier.
it it possible for the recovery image to affect things?
Mine won't show up in my PC (windows 8) If USB debugging is off. I'm fairy certain this behavior started at some point during the rooting process because I had a hell of a time getting the files to the phone.
setherd said:
When I plug in my nexus4 to a computer it wont show up...most of the time.
I've used 3 different cables.
4 different computers, running, linux mint, win7 and XP.
I installed clocwork mod recovery today and then it showed up as a new device on a XP copmuter but then it would never show up again.
I'm rooted, running carbon ROM, usually with TWRP recovery but switched today.
I've tried it in MTP and PTP modes, debugging on and off.
it charges just fine from a PC.
any ideas are appreciated.
Click to expand...
Click to collapse
From what I noticed, when you use a lockscreen with some kind of protection the device memory will not show up if it hasnt't been unlocked in the past few minutes or before connected. This is mostly for security reasons to make sure you are the one accesing the device..
I am not sure if this is the source of the problem you are mentioning but just to let you know
That's not it, I'm doing this with it right in front of me, unlocked
Sent from my Nexus 4 using Tapatalk 4
Have your nexus connected and disable developer settings and delete your adb driver. Then select mtp mode while connected and you should be able to connect now.
Sent from my Nexus 4 using xda app-developers app
FWIW, I have encountered odd connection issues with my Nexus 4 running bone-stock Android.
As I recall, it won't connect to ADB in MTP mode. In PTP mode, it usually works. Personally, I just said "screw it" and starting using MyPhoneExplorer for everything.
Enable USB debugging in your phone. Nuff said.
nothing works, PTP, debugging on/off, etc.
well I finally got a hold of my wife N4, it connects just fine. so I think it's definitely a hardware issue.
Ifixit shows how to replace the daughter board.....but I'd rather send it to LG for warranty replacement but I have it rooted.
If I could just get it to connect once more I would flash it back to stock.
Hey,
So I got my D802 today and I want to do the whole Root, Recovery, ROM shenanigans.
But for the love of god I cant connect the phone in MTP mode, so I cant Root, nor install a recovery.
I cant connect to the LG PC Suite either.
Any Ideas?
what connection type are u choosing after plugging it into the computer? are u running Windows, Mac, Linux? Windows will work with mtp out of the box but I think Mac and Linux need phone drivers installed. Windows will need drivers when you're ready to "unlock" using adb.
Sent from Tapatalk using my xposed VZW G2
Right, so I´m running Win7 64 Bit
I tried multiple USB Ports, rebooting PC and Phone, resetting Phone and now i´m all out of ideas
I never had any problems with the other phones I rooted and unlocked on this Computer
E-I-K-E said:
Right, so I´m running Win7 64 Bit
I tried multiple USB Ports, rebooting PC and Phone, resetting Phone and now i´m all out of ideas
I never had any problems with the other phones I rooted and unlocked on this Computer
Click to expand...
Click to collapse
when you first plug in your phone it gives you the option to install the drivers needed to connect in the different modes, if not on the top right corner of the menu with charge/mtp/pc software it should have the option to install the drivers
E-I-K-E said:
Right, so I´m running Win7 64 Bit
I tried multiple USB Ports, rebooting PC and Phone, resetting Phone and now i´m all out of ideas
I never had any problems with the other phones I rooted and unlocked on this Computer
Click to expand...
Click to collapse
you never said what connection type you're choosing on the phone after plugging it in. there are a few options and change how the phone is seen by Windows. some options won't have it display as an mtp device or as a drive letter in my computer.
Sent from Tapatalk using my xposed VZW G2
Usb cable problem?
Try toggle usb debugging
Sent from my LG-D802 using XDA Premium 4 mobile app
Really Weird
I'm having the same issue. I'm running OptimusG3 v1.3, I've never had an issue with it before, I used MTP to transfer files yesterday, worked flawlessy, now it won't. I was trying to map the G2 as a network drive, I installed LGPCSuite, a couple of other software that should be inconsequential, and suddenly my phone says connected as MTP, but my laptop won't recognize or show the device in My Computer. I get installing device drivers prompts, I used the hardware and devices troubleshooter which told me 'LGE Android MTP Device has a driver problem' and LGE Mobile USB Modem has a driver problem. Reinstall device driver -> completed, but still not fixed. I installed LG's universal uSB tool or whatever, no fix. I have no idea wth is up (It's not a USB debugging accidental toggle either). I'll try uninstalling PCSuite. I though it would be more useful
... and is no longer recognized when connected to a computer via USB, meaning I can't return to stock to get ready for the Lollipop OTA.
Got a rooted Nexus 4 running the latest PA beta.
What happens when connecting to PC:
- On two different Windows machines: systray popup saying "USB device not recognized. The last USB device you connected to this computer malfunctioned etc.". In device manager it says "Unknown USB device (device descriptor request failed)"
- On elementary OS, based on Ubuntu 12.04: nothing, besides charging.
No USB debugging connection notification on the Nexus 4 either when plugging in.
What I've tried (USB debugging enabled, all relevant drivers installed):
- Settings > Storage > USB computer connection > check Camera PTP (used to be required in order to get an RSA key prompt when connecting to a computer, now it does nothing)
- Flashing latest stable CM to see if PA was to blame. Made no difference.
- Uninstalling device through device manager in Windows and reconnecting. No effect. Driver update doesn't work either, finds nothing.
- Using Wugfresh's Nexus toolkit to see if that worked, but that obviously doesn't work either when the device isn't recognized, same with the Universal Nexus Linux Toolkit on Linux.
- Scouring the net for solutions and coming up with nothing
I have flashed factory images before on this phone without problems. Should I consider it a hardware failure by now, or is this a known issue with a fix?
Try a new wire, different usb port on computer, finally look into cleaning your charging port on the phone/replacing it.
DrFredPhD said:
Try a new wire, different usb port on computer, finally look into cleaning your charging port on the phone/replacing it.
Click to expand...
Click to collapse
Tried three different cables, every port on two laptops, no joy - my girlfriend's phone connects normally.
Wouldn't replace the charging port, then I'd just get a new phone since it's a 2 years old Nexus 4. If only there was a way to flash the factory image using only TWRP.
bimsebasse said:
Tried three different cables, every port on two laptops, no joy - my girlfriend's phone connects normally.
Wouldn't replace the charging port, then I'd just get a new phone since it's a 2 years old Nexus 4. If only there was a way to flash the factory image using only TWRP.
Click to expand...
Click to collapse
Flash this in twrp http://forum.xda-developers.com/showthread.php?p=47476426
Sent from my Nexus 5 using XDA Free mobile app
Thanks jd1639, that seemed to be exactly what I was looking for -
- but then I had an extremely blonde moment and formatted everything in TWRP, wiping the ROM I was gonna flash in the process, on a device where USB file transfer doesn't work anymore
My phone is now a paper weight.
Have you tried the file manager in twrp yet? I've found it connects when nothing else will...
Nexus 4 when plugged in with 2 different cables (both capable of transferring MTP as tablet transfers files and connects as MTP just fine) don't do anything and just charge the phone . No "connected as a media device" notification. Checked settings and it's on debugging mode as well as MTP mode but still not being recognised and the same applies for PTP. Phone has been factory reset and still does not get recognised by computer. Device Manager doesn't pick up anything either. No ADB, Nexus 4 name in Device Manager. What's the problem and how can i get it to show up on computer as an MTP device? The phone's not rooted and is Android Version 5.0.1 Lollipop.
Sir,
Please wait until mods will move this thread to the device specific forum for more relevant answers.
For full access please register an account on XDA.
Stand by
Good luck
Had the same issue my USB port on my Nexus 4 was going bad, but it was still charging the phone. I replaced the port and was back in business.
Sent from my Nexus 4 using Tapatalk
XDA Visitor said:
Nexus 4 when plugged in with 2 different cables (both capable of transferring MTP as tablet transfers files and connects as MTP just fine) don't do anything and just charge the phone . No "connected as a media device" notification. Checked settings and it's on debugging mode as well as MTP mode but still not being recognised and the same applies for PTP. Phone has been factory reset and still does not get recognised by computer. Device Manager doesn't pick up anything either. No ADB, Nexus 4 name in Device Manager. What's the problem and how can i get it to show up on computer as an MTP device? The phone's not rooted and is Android Version 5.0.1 Lollipop.
Click to expand...
Click to collapse
You could try and install ADB drivers . It might help the pc detect.
64bit
32bit
N4 will not show up as MTP in android
If you want to use MTP, it is supported in TWRP recovery.
Boot into TWRP recovery and you can view and transfer everything in N4 /root via windows explorer on PC.
mine once had MTP work flawlessly until i start to done this and that, now whatever i did only PTP works
boot to TWRP? sadly nothing work ?
groovepeppy said:
mine once had MTP work flawlessly until i start to done this and that, now whatever i did only PTP works
boot to TWRP? sadly nothing work ��
Click to expand...
Click to collapse
If your bootloader is unlocked, you can flash or boot into TWRP recovery, it supports MTP.
If you have any connection problems between PC and TWRP MTP, it is likely driver related.
You will need to look in Device manager on PC while phone is connected.
Download the howto_driver.zip from the "15 seconds ADB Installer thread" and follow the picture tutorial contained in the zip file. This should fix your connectivity issues.
If you are sill having connection issues, You could try and install ADB drivers . It might help the pc detect.
64bit
32bit
Then go back through the picture tutorial in the howto_driver.zip
Best of luck
Nexus 4 Update
Took it to phone technician who replaced battery port on phone. He didn't do a good job on the reassembly of the Nexus 4 when replacing phone battery port and fixed it. Drivers install now.
Calvin Vongola said:
Nexus 4 Update
Took it to phone technician who replaced battery port on phone. He didn't do a good job on the reassembly of the Nexus 4 when replacing phone battery port and fixed it. Drivers install now.
Click to expand...
Click to collapse
Glad you got it sorted out :good: