cannot restore to stock, constant FCs, need help - Nexus 7 Q&A, Help & Troubleshooting

hello. i used LCD density monitor to try to fix the market after switching the DPI settings, and my device is unusable. as sooon as i boot, everything force closes, nothing runs. ADB cannot connect to the device. it says theres no device connected.
i used toolkit to reflash stock rom, but i cant reset to factrory, so it keeps booting into this terrible set up with nothing working. stock recovery is just the android with the open chest and eclamation.
going through the toolkit, i cannot get the ADB drivers to install and correctly see my tablet.
can anyone offer some help?
much appreciated!

Not sure if this will work for you but when ADB couldn't see my N7, it was because it was in MTP mode.
Settings > Storage > Menu (top right) > USB computer connection > select Camera (PTP)
If that works, you can push all the stock images and recovery via fastboot.

managed to finally get adb to work, flashed stock, and starting over wiuth a restore, but theres no MTP drivers installed. anyone have any idea how to install them or where to get them?

joshtb86 said:
managed to finally get adb to work, flashed stock, and starting over wiuth a restore, but theres no MTP drivers installed. anyone have any idea how to install them or where to get them?
Click to expand...
Click to collapse
Can you roll us a little how you managed to revive your device?
Sent from my Galaxy Nexus using xda premium

kind3rgarten said:
Can you roll us a little how you managed to revive your device?
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
to get ADB to work, i went through the manual driver install several times before i got it to work. i had the USB plugged into a usb 3.0 port, and for some reason, ADB does not recognize through 3.0 ports. plugged into a 2.0 port and had no problem getting ADB to finally recognize it.
I flashed stock, but rebooted to the same problem. i managed to get into the menu and factory reset. after factory resetting, it was fine.
no more LCD density until they fix that.

Make sure you have android SDK installed.
Sent from my Nexus 7 using Tapatalk 2

joshtb86 said:
to get ADB to work, i went through the manual driver install several times before i got it to work. i had the USB plugged into a usb 3.0 port, and for some reason, ADB does not recognize through 3.0 ports. plugged into a 2.0 port and had no problem getting ADB to finally recognize it.
I flashed stock, but rebooted to the same problem. i managed to get into the menu and factory reset. after factory resetting, it was fine.
no more LCD density until they fix that.
Click to expand...
Click to collapse
The easiest way to change your DPI is to either download ROM Toolbox or edit it yourself. ROM Toolbox is good for whole slew of things, not just DPI modding. I would recommend it for anyone with a rooted Android Device.
And thanks for telling us that information, nice to know that ADB doesn't support USB 3.0. :/
Sent from my Nexus 7 using xda premium

Related

adb when fully booted in 2.1

Quick and possibly stupid question but is adb accessible in 2.1 when fully booted? I know in 1.5 it was but I can't seem to do it in 2.1 unless i'm in recovery.
cali310 said:
Quick and possibly stupid question but is adb accessible in 2.1 when fully booted? I know in 1.5 it was but I can't seem to do it in 2.1 unless i'm in recovery.
Click to expand...
Click to collapse
I'm far from an expert, but with USB debugging enabled I can adb to my phone with it fully booted...in fact, that's how I rooted it, lol.
I might be missing something though...like I said, I'm pretty much a newb.
cali310 said:
Quick and possibly stupid question but is adb accessible in 2.1 when fully booted? I know in 1.5 it was but I can't seem to do it in 2.1 unless i'm in recovery.
Click to expand...
Click to collapse
No problems here doing it.
You have to be connected using the choice HTC Sync when you plug the phone in. Then you have to wait a few seconds and then you should be able to use ADB
Leukay said:
You have to be connected using the choice HTC Sync when you plug the phone in. Then you have to wait a few seconds and then you should be able to use ADB
Click to expand...
Click to collapse
Actually the trick is NOT using htc sync. HTC sync also uses adb and you can't have multiple adb connections. So if you have htc sync running on your computer (even if you aren't currently connected to it) it's holding a connection to your phone and will prevent command line adb from working properly.
I tried all 4 settings when USB is connected and no luck w/ any of them.
cali310 said:
I tried all 4 settings when USB is connected and no luck w/ any of them.
Click to expand...
Click to collapse
Can you tell us what adb is telling you? To answer your original post... adb works perfectly fine in all flavors of 2.1. So there is something else going on.
That's the thing. It's not showing the device. If I do an adb devices it's not showing up unless i'm in recovery. Same thing when using fresh kitchen. I tried using it the other day to wipe the lock screen cache to install the invis one and that's when I discovered the prob.
That's the thing. The device isn't showing up. If I do an "adb devices" I get nothing unless i'm in recovery. Same thing w/ fresh kitchen. I went to use it the other day to wipe my lock screen cache and that's when I discovered the prob. It worked in recovery too.
Sounds like you are missing drivers. Are you running Win 7 by any chance?
Anyways, try this, it should help. Download PDAnet (google it for link) and install it. This will install correct drivers for you . Then it should work.
ccapasso said:
Sounds like you are missing drivers. Are you running Win 7 by any chance?
Anyways, try this, it should help. Download PDAnet (google it for link) and install it. This will install correct drivers for you . Then it should work.
Click to expand...
Click to collapse
I already have PDANet installed. It is the 1.12 version if that makes a difference. And yes, i'm running Win 7 64 bit. It was working fine w/ 1.5 so I don't think it's a driver issue.
This worked for me as well.....
jackal424 said:
I had a similar problem. I use Windows 7 Pro 64bit.
Here is what helped fix the issue:
http://www.mydigitallife.info/2009/08/24/workaround-for-htc-hero-sync-problem-in-windows-7/
Click to expand...
Click to collapse
I'm using linux, and I used linux to root both of our Heros. Now, in linux I can't communicate with the phone through adb. It just doesn't see the phone. On the same computer I boot into windows and adb works fine.
What could be causing this?
One time, I had a bad USB cable. Only charged, and made no USB connection whatsoever (ADB, sdcard mount, etc.)
Before I mess w/ htcsync does one of the hero gurus around here think it is worth trying? As I said before I have no probs with adb in 1.5 when fully booted nor do I have a prob w/ it when in recovery (both 1.5 and 2.1) so I wouldn't think it's a driver issue. If i'm wrong let me know.
Also, which of the 4 USB settings do you select when the phone is plugged into the pc?
I had the exact same issue. I blogged about it here so I could show screenshots in context
http://sprintherotips.blogspot.com/2010/03/pc-connection-issue-windows-7-ultimate.html
cali310 said:
Before I mess w/ htcsync does one of the hero gurus around here think it is worth trying? As I said before I have no probs with adb in 1.5 when fully booted nor do I have a prob w/ it when in recovery (both 1.5 and 2.1) so I wouldn't think it's a driver issue. If i'm wrong let me know.
Also, which of the 4 USB settings do you select when the phone is plugged into the pc?
Click to expand...
Click to collapse
charge only.
Updated the drivers and the sdk and now I can adb in. Thanks a lot ro_bro and everyone else. It only works for me in htcsync mode. It searches for htcsync for like 30 secs then lets me cancel. Charge only doesn't work. I assume something else is screwed up.

need help.

I have no idea what i did, but my Nexus 7 formatted every file on there, there's not even a rom it can boot into....I can boot into recovery, but I have no idea how I can bring a file and load a rom on Nexus 7 because I can only get to three things..bootloader, recovery and google (unlocked) that's stuck there because of no rom.
using nexus 7 toolkit...but i'm probably doing something wrong...getting device not found.
can someone give me a noob guide on what i can try to fix this
Use the flash back to stock option with device will not boot checked on wugfresh toolkit
Sent from my Nexus 7 using xda app-developers app
the computer is not picking up the nexus 7...it makes a sound when i connect or disconnect the USB, but it doesn't show up on the computer.
really need help...i'm sure this can be fixed since i can boot into recovery or boot loader...
djricekcn said:
the computer is not picking up the nexus 7...it makes a sound when i connect or disconnect the USB, but it doesn't show up on the computer.
really need help...i'm sure this can be fixed since i can boot into recovery or boot loader...
Click to expand...
Click to collapse
Did you try installing the driver package that comes with Wugs?
Its sounds like it isnt finding the drivers to me.Are you using a custom recovery or the stock?
Try using Odin and see if it recognizes it.
Kodiack99 said:
Did you try installing the driver package that comes with Wugs?
Its sounds like it isnt finding the drivers to me.Are you using a custom recovery or the stock?
Try using Odin and see if it recognizes it.
Click to expand...
Click to collapse
i thought odin is for samsung devices...where do i download one that works with N7?
I'm trying to install drivers, but it's not doing anything but opening up pictures with how to install in Wugs.
using wugs, it does pick up as grooper under device manager, but doesn't show on the MY COMPUTER section
not sure what you mean by recover or stock, but i can get into Clockword Mod Recover 6.0.1.0...does that help?
**tried odin 3.7 but it isn't doing anything
LOL sorry I got a few devices and 2 out of 3 are samsung.
Maybe try to install the drivers in the toolkit here http://forum.xda-developers.com/showthread.php?t=1809195 ,if you can get a image on there you should be able to flash it with Clockwork if you select install from zip.
I dont suppose you made a backup with Clockwork?
If you can get adb working you can easily flash it back to stock by following this http://forum.xda-developers.com/showthread.php?t=1907796
how do i do this when i can't boot into android
Driver Installation
This seems to be the most confusing part for many people. Be patient and thoroughly read all the instructions.
Enable usb debugging on your device (found under Settings > Developer Options)
NOTE: Since Android 4.2 the Developer Options are hidden by default.
To enable them, go to Settings > About Phone, and tap on build number around seven times. A small dialog will appear letting you know "You are now a developer!"
Install the abd driver - detailed instructions for installing or upgrading and existing driver on your version of Windows can be found at http://developer.android.com/tools/extras/oem-usb.html
Once the driver is installed open a command prompt and change directories to <your sdk directory>\platform-tools (see #2). From the command prompt run "adb devices". This will list any adb-capable devices that are connected to the computer by their serial number assuming your drivers are installed correctly. Recap:
Code:
can't figure it out....
"devices not found"
djricekcn said:
can't figure it out....
"devices not found"
Click to expand...
Click to collapse
Did you install the drivers from the nexus toolkit?
And maybe try a reboot of your pc,and try unplugging usb and replugging while in fast boot.
Also check in CWM and see if a backup has every been made even if its old, its better than where you are now.
there's no backup of anything on the nexus...everything got wiped somehow. nexus 7 toolkit keep tellingthe resource loader cache doesn't have loader mUI entry" whichs tells me it's ok..
adb: unable to connect backup
unplug / reboot / different ports...basic pc stuff already done
Maybe try using a different cable,Other than that maybe try a different pc and see if it loads a default driver to at least give you access to put a zip file on it to flash,could be your driver is corrupt on that pc never heard of it installing a nexus as grooper.
Besides that I'm at a loss.
Best of luck,hopefully you get it figured out.
so...i've tried the following already just to make it clear...
i already tried all the basic pc things
-switch usb ports
-reboot pc
-use usb2
-use usb3 ports
-use a different computer (one 8, one XP)....both...i don't really know what to do cause instructions seems to be mostly in 7 and/or just not working on 8
-rebooted asus n7
if someone can give me step by step, noob guide...instead of saying try thing / that, it may help me.
djricekcn said:
there's no backup of anything on the nexus...everything got wiped somehow. nexus 7 toolkit keep tellingthe resource loader cache doesn't have loader mUI entry" whichs tells me it's ok..
adb: unable to connect backup
unplug / reboot / different ports...basic pc stuff already done
Click to expand...
Click to collapse
A lot of people who think every thing got stopped find their files under /storage/emulated/0
Sent from my Nexus 7
Clean ROM 2.5 - leanKernel 0.7
Try this to get adb working it was a fix for this guy. If adb works you can flash stock images.
http://forum.xda-developers.com/showpost.php?p=30230955&postcount=8
If you're using one of the toolkits you should be able to push an image to it.
Sent from my HTC Desire S using xda app-developers app
Kearkan said:
If you're using one of the toolkits you should be able to push an image to it.
Sent from my HTC Desire S using xda app-developers app
Click to expand...
Click to collapse
which is what I'm having trouble with...it's not picking up....
and can't find media player 13....only find some sort of pack..tried it...not working becuase it's not applicable with W8 even though i downloaded the W8 version..arg.
http://windows.microsoft.com/en-US/windows/download-windows-media-player
Included in Windows 8 and Windows 8 Pro, but doesn't include DVD playback. Go to the DVD playback for Windows page to find out how to add DVD playback to Windows 8. To get Windows Media Player 12 for Windows 8 N and KN editions, download the Media Feature Pack.
Click to expand...
Click to collapse
I had exactly the same problem. I was able to restore mine to stock 4.2 without ever having the Nexus 7 show up under my computer. My understanding is that it isn't supposed to show up there unless it is booted into android, but I could be wrong. Anyways, just try downloading the stock N7 firmware and installing with the Unroot and restore stock option in the Wugfresh Toolkit, and if you want root and custom recovery back, simply use the option to reroot and follow the instructions. That's what I did and it worked like a charm.
Sent from my Nexus 7 using xda premium
was able to get it working with a MAC, can't adb push on the computer i have at home...not recognizing it even after drivers installed...well it recognizes but adb doesn't.

Stuck at "android is upgrading"/"starting apps"

Basically I tried to install acid audio mod 8 on my phone but did not realize that it was xperia only, so now it is stuck on "android is upgrading"/"starting apps" everytime i reboot. I tried flashing back to acid audiomod 7 and that didnt help. I am running Slimrom with franco kernel btw. I also tried wiping dalvik cache, just cache, and formating the phone from recovery, none of that helped. I dont have any roms saved on my phone or any backups so I am stuck like this and I cant connect my phone to my pc, my pc would recognize it but it wont show up in my computer so I cant access it to to save another rom to it. I tried connecting via recovery (where it goes "download mode do not unplug the device until the process is complete") But that doesnt work, the it would try and install drivers for two "Full JellyBean on Mako" (so it seems like slimrom is based off of a older cm 10 build), but it would come back with no drivers found. When I am in recovery via clockwork my pc recognizes my phone as "Android" but again I still cant do anything with it. Someone please help! I need to fix it by tonight because I am going camping tommorow with family for a few days so having my phone working is a must .
Thanks for those that try to help!
PS I tried using nexus 4 toolkit to reinstall drivers that didnt help.
Deleted
Sent from my Nexus 4 using xda app-developers app
help!
please help! Im searching for what I can do but i cant find anything at all.
What exactly do you mean it recognizes as android? Do you mean from device manager? Does it recognize it via adb? If so you can use adv to push or side load a rom
Sent from my Nexus 4 using xda app-developers app
marsdta said:
What exactly do you mean it recognizes as android? Do you mean from device manager? Does it recognize it via adb? If so you can use adv to push or side load a rom
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Im not sure how to do that, lol, im still pretty noob, but yeah I mean from devicemanager.
I would install the SDK . you could also use the adb files of the toolkit if you want
When you locate the adb files. Open a command prompt (shift right click ) and type adb devices. To check if its being recognized. If it is we can push a ROM.
Download ROM of choice and place it in the same folder as adb
Then type the command
Adb push nameofrom.zip /sdcard/nameofrom.zip
Or if you near a PC I can help out via teamviewer
Sent from my Nexus 4 using xda app-developers app
marsdta said:
I would install the SDK . you could also use the adb files of the toolkit if you want
When you locate the adb files. Open a command prompt (shift right click ) and type adb devices. To check if its being recognized. If it is we can push a ROM.
Download ROM of choice and place it in the same folder as adb
Then type the command
Adb push nameofrom.zip /sdcard/nameofrom.zip
Or if you near a PC I can help out via teamviewer
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Could you please help out through team viewer lol? I know I have adb sdk installed, just dont know how to use it.
lemon07r said:
Could you please help out through team viewer lol? I know I have adb sdk installed, just dont know how to use it.
Click to expand...
Click to collapse
LEARN.
exbo, no comment, not even worth say anything lol maybe try learning manners.
Anyways thank you marsdta for helping me through team viewer .
Download the factory image, learn to use adb or try the toolkit to flash it back to stock, and never touch your phone again. As far as drivers, try this. http://junefabrics.com/android/downloadold.php
marsdta said:
What exactly do you mean it recognizes as android? Do you mean from device manager? Does it recognize it via adb? If so you can use adv to push or side load a rom
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Hello sir I to have the same problem I tried to install beats audio on my gionee elife e3 mobile it was also having same problem but I am using windows 8.1 it was detecting as android phone but not android device so please help me over team viewer I have all drivers installed for it though when I select update driver of unknown device as android device it dosent show android adb interface but when I select as android phone it shows android adb interface and in sdk when I use adb devices it dosent show any name so where can I side load to so help me please....
lemon07r said:
Basically I tried to install acid audio mod 8 on my phone but did not realize that it was xperia only, so now it is stuck on "android is upgrading"/"starting apps" everytime i reboot. I tried flashing back to acid audiomod 7 and that didnt help. I am running Slimrom with franco kernel btw. I also tried wiping dalvik cache, just cache, and formating the phone from recovery, none of that helped. I dont have any roms saved on my phone or any backups so I am stuck like this and I cant connect my phone to my pc, my pc would recognize it but it wont show up in my computer so I cant access it to to save another rom to it. I tried connecting via recovery (where it goes "download mode do not unplug the device until the process is complete") But that doesnt work, the it would try and install drivers for two "Full JellyBean on Mako" (so it seems like slimrom is based off of a older cm 10 build), but it would come back with no drivers found. When I am in recovery via clockwork my pc recognizes my phone as "Android" but again I still cant do anything with it. Someone please help! I need to fix it by tonight because I am going camping tommorow with family for a few days so having my phone working is a must .
Thanks for those that try to help!
PS I tried using nexus 4 toolkit to reinstall drivers that didnt help.
Click to expand...
Click to collapse
i had the exact same problem, it was stuck at starting apps, then suddenly i heard my phones msg toe go up, so i thought id randomly give a call to the hone, and it rang and showed up the diler, i rejected, jumped in settings, and as it turns our, i had an old version of nova launcher which wasnt compatable with art. and since it was my default launcher ,even though it fc'd android kept trying to launch it i set lg home as default and now its fine phone is lg g2
you can do what is stated above or you can wipe data using stock recovery, not needing any pc, but you will loose all your data
shriom_manerker said:
i had the exact same problem, it was stuck at starting apps, then suddenly i heard my phones msg toe go up, so i thought id randomly give a call to the hone, and it rang and showed up the diler, i rejected, jumped in settings, and as it turns our, i had an old version of nova launcher which wasnt compatable with art. and since it was my default launcher ,even though it fc'd android kept trying to launch it i set lg home as default and now its fine phone is lg g2
Click to expand...
Click to collapse
Download stock images etc
Go into fastboot, use the fastboot toolkit to flash them. That's what I did cause recovery was being weird. This was a while ago though. I dont have a nexus 4 anymore so I can explain how to do it in detail, i broke it and now im stuck with my dumb iphone 4s.

No OS Installed, Can't Sideload (USB Not Working)

I tried to install a new font with Font Installer, as it had worked in the past, but my phone then got stuck in a boot loop. I had already gotten rid of my backup after I found out that PA wasn't going to be updated until 4.4, so I thought there was no need for a Nandroid until then. I do not seem to have any PA ROM .zip's on my phone anymore.
A couple weeks ago, my usb port stopped working and everytime I try to plug something into the port, it begin to heat up and there is a burning smell. So I cannot transfer anything through usb.
So I made a factory reset and then wiped the system and now when I try to reboot, TWRP says "No OS Installed." When I proceed and the phone reboots, I am stuck on the screen with "Google."
Is there any way I can fix this?
NexusAndroid4 said:
I tried to install a new font with Font Installer, as it had worked in the past, but my phone then got stuck in a boot loop. I had already gotten rid of my backup after I found out that PA wasn't going to be updated until 4.4, so I thought there was no need for a Nandroid until then. I do not seem to have any PA ROM .zip's on my phone anymore.
A couple weeks ago, my usb port stopped working and everytime I try to plug something into the port, it begin to heat up and there is a burning smell. So I cannot transfer anything through usb.
So I made a factory reset and then wiped the system and now when I try to reboot, TWRP says "No OS Installed." When I proceed and the phone reboots, I am stuck on the screen with "Google."
Is there any way I can fix this?
Click to expand...
Click to collapse
First of all it is a good lesson why you always have to keep a nandroid backup.
Ia the USB on your PC is the problem? Can't you go to other PC and transfer a zip to your nexus?
I guess that USB is the only way.. You obviously can't use WiFi or bluetooth. Find a PC and do it.
Good luck.
Sent from my Nexus 4 using XDA Premium 4 mobile app
MasterLinuxer said:
First of all it is a good lesson why you always have to keep a nandroid backup.
Ia the USB on your PC is the problem? Can't you go to other PC and transfer a zip to your nexus?
I guess that USB is the only way.. You obviously can't use WiFi or bluetooth. Find a PC and do it.
Good luck.
Sent from my Nexus 4 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
You're right about that.
No, the usb on my N4 is the problem. Plugging any usb cable into the port doesn't work. No computer can recognize the device and the device is unable to charge through usb either.
I'm very sorry and it's painful to say but I can't think of any solution.. Maybe only to fix your USB port..
Sent from my Nexus 4 using XDA Premium 4 mobile app
http://www.ebay.com/sch/i.html?_nex...kw=nexus+4+usb+repalcement&_sacat=0&_from=R40

Nexus 4 lost computer USB data connection ability

at some point in the last 6 months or so, my phone lost the ability to connect to my computer- I've tested by uninstalling and reinstalling the USB drivers on my computer, using virtual drivers, etc. Everything I could- I even tested on other computers that it has worked on in the past. Nothing helps.
I then decided it must be on my phones end, so I went so far as to replace the USB connection board inside my phone and that doesnt even work.
I used to have my phone rooted, but that was lost at some point over a couple OTA updates-- Is there anyway I can restore root access on my device without using a USB connection, or does anyone have any ideas on how to fix the connection issue?
Thanks!
Did you check the cable?
krystyuc said:
Did you check the cable?
Click to expand...
Click to collapse
Multiple cables as well. I'd do that before replacing the board!
crazychris78 said:
Multiple cables as well. I'd do that before replacing the board!
Click to expand...
Click to collapse
Usb debugging enabled?
krystyuc said:
Usb debugging enabled?
Click to expand...
Click to collapse
Tried that as well. I've tried pretty much everything I can think of. the superuser app says it might be a kernal issue
crazychris78 said:
Tried that as well. I've tried pretty much everything I can think of. the superuser app says it might be a kernal issue
Click to expand...
Click to collapse
Try the following
1)Boot into booloader and check in device manager if the phone is detected if so then go flash-all.bat 4.4.3( will wipe your phone,new phone factory)
krystyuc said:
Try the following
1)Boot into booloader and check in device manager if the phone is detected if so then go flash-all.bat 4.4.3( will wipe your phone,new phone factory)
Click to expand...
Click to collapse
bootloader isn't recognized on my PC or any others, either
crazychris78 said:
bootloader isn't recognized on my PC or any others, either
Click to expand...
Click to collapse
Well,in that case...i don't know.Maybe you should go to a specialist.
Look for flashify, a app can flash recovery, once you have recovery, you can have root.
Sent from my Galaxy Nexus using Tapatalk
chongns said:
Look for flashify, a app can flash recovery, once you have recovery, you can have root.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Flashify requires root access
do you have a kernel with fast charge enabled? that disables PC data connection
crazychris78 said:
Flashify requires root access
Click to expand...
Click to collapse
please answer below question
1. what os use on your PC ?
2. do you install others driver beside google adb and fastboot?
3. what version of adb and fastboot you have if you have installed before
4. you said you have OTA udpate from gogole or form the ROM developer?
note:
you need to install latest adb and fastboot. latest version is .31
if you have other 2 or more driver installed before, it may crash or mis regonice the phone, like samsung and google driver for Galaxy nexus which i facing.
some help form external web here
I have same problem, i tried even on linux. What is worst i removed rom from sdcard and now my current rom crashed. When i try to pull new rom via adb, new file is created but is "empty". Usb otg doesn't work in recovery ;/
I am seeing the same thing also. I even bought a USB replacement part on ebay and installed it. The PC still doesn't see the device.

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