Boot loop - fastboot/adp not working - Nexus 4 Q&A, Help & Troubleshooting

Hi all, I dropped and broke the screen of my rooted Nexus 4. I purchased a replacement screen/digitizer, but when I turned on the phone after installing I found it in boot loop. I went into recovery mode and wiped cache partition, dalvik-cache, but that didn’t help. Then I did a factory reset, which didn’t solve the problem either. I must have wiped usb debugging because now I can’t get fastboot or adb commands to work and my computer doesn’t recognize my phone anymore. I can access recovery mode but I am still stuck in boot loop. Any way to get my phone running again, or at least able to get my phone and computer (Mac) to see each other again? Thanks!

Make sure you have latest adb and fastboot SDK files installed. Debugging has no link to fastboot.
Sent from my Nexus 4

I have latest adb and fastboot SDK files installed. I was able to use adb and fastboot commands before I wiped my device, but not anymore

So I ended up getting a new phone -- Zenfone 2 -- and devices wasn't showing up. On a whim, I tried a different USB cable today and it worked! I hooked up my Nexus 4 with this cable and it also worked! Could've been such an easy solution.
I really liked my Nexus 4 and was hoping to eek out another year or so out of it but now I'm out the cost of a digitizer/lcd and another $300 for the Zenfone 2, but I guess it'll become my backup phone. Just wanted give an update and warn others to try switching cables before writing it off like I did.

Related

Softbricked Nexus 7 - Debugging Off?

Hi guys, after restoring from a backup I made in CWM - which apparently was corrupted - I can't boot past the "X" boot animation, and because of the glitch in the bootloader, I cannot boot to recovery, which would at least allow me to flash a clean ROM. At any rate, I tried to boot to recovery from my computer, but I keep getting "error: device not found" errors from ADB and the Nexus 7 ToolKit (which uses ADB anyway). I have tried all possible scenarios with drivers, but to no avail. I can only assume that debugging is disabled. Is this a reasonable assumption, and if it is true, am I completely screwed out of $250, or is there something I can do?
SpaceToast7 said:
Hi guys, after restoring from a backup I made in CWM - which apparently was corrupted - I can't boot past the "X" boot animation, and because of the glitch in the bootloader, I cannot boot to recovery, which would at least allow me to flash a clean ROM. At any rate, I tried to boot to recovery from my computer, but I keep getting "error: device not found" errors from ADB and the Nexus 7 ToolKit (which uses ADB anyway). I have tried all possible scenarios with drivers, but to no avail. I can only assume that debugging is disabled. Is this a reasonable assumption, and if it is true, am I completely screwed out of $250, or is there something I can do?
Click to expand...
Click to collapse
Can you get to fastboot if you have the USB plugged in? If so you can use it to restore stock with the factory images from Google.
I managed to use the fastboot method to solve the problem. Everything went nicely for about a day, and just an hour ago my soft navigation buttons stopped responding to touch. A factory reset from the device did not resolve the problem. I'm going to try some work in ADB once I get access to a proper windows computer, but that may not be for a while, is there anything that might work that doesn't require a computer in the meantime? (I'm clueless when it comes to Linux. I tried installing Java and the Android SDK using a LiveCD of Ubuntu, but my efforts were met with frustration.)
You can just put windows on through a disk rather than buying a PC
Sent from my Nexus 7 using xda app-developers app
Nah, I have a fully functional custom rig, but windows killed itself and my cracked disk image of the install disk is on the same hard drive on the same partition. I'm waiting for my SSD to come in, so I can install Mint on it and burn the iso on my hard drive from there, then install Windows on my SSD.
At any rate, I used my friend's computer to flash to stock from fastboot and it didn't fix anything. Now, every time i try to touch the screen it just pulls the notification bar down to that point on the screen. I'm ready to re-lock my bootloader and bring it back to the store if nobody has a more convenient solution.
UPDATE: I rebooted from there and I'm back where I was in the last post. My navigation buttons at the bottom don't work, and sometimes touches don't register on the rest of the screen. The lock screen also doesn't respond to touch either.
ADB commands only work when its on. Fastboot boot commands when in bootloader.
Or just plug the N7 into the PC, hold down all the buttons to boot into fastboot, then select recovery. It has to be plugged in to the PC to get into ClockworkMod.
Sent from my Nexus 7 using xda premium
player911 said:
ADB commands only work when its on. Fastboot boot commands when in bootloader.
Or just plug the N7 into the PC, hold down all the buttons to boot into fastboot, then select recovery. It has to be plugged in to the PC to get into ClockworkMod.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
But I'm not attempting to do anything in ADB, unless there is some way I can use ADB to fix my nav bar and lockscreen.
UPDATE: It seems the lockscreen is working. Also, my navigation bar sometimes feels like activating buttons without me touching them.
UPDATE 2: And just like that my lockscreen isn't responding to touch again.
Bump?
can we launch fast boot while in recovery cause mine n7 always boot into clockwork recovery, i can not boot into my rom

Need Help Unbricking Nexus 7

The problem is I can't unbrick and restore my nexus to stock rom.
I can't boot the device and I'm only able to boot to bootloader. However, my computer doesn't recognize the nexus. It keeps saying Window cannot recognize it whenever I plug my tablet to the computer in bootloader. I tried uninstall and reinstall driver several times, but none of them seems to work . ----> That means I can't even use adb to restore the phone simply because my tablet is not recognized in window.
Is there anyway to fix this problem? I really need your helps as soon as possible.
Thank you for reading !
Get to bootloader. Then use Wugs toolkit, open advanced options. On the very left is something like "temp boot to recovery". Once that boots it to recovery, ADB should work. It did for me. I was in some trouble last night and got out by this. If you know how to use adb/fastboot commands, you should be good. And I uninstalled my drivers and when I plugged it in the device automagically reloaded the drivers. But you have to do it a few times. Had to do it in bootloader, recovery, and another point. Anytime it asks to load drivers/etc do it.
I can't boot to recovery through Wug Tool Kit. It keeps saying Fastboot device was not found >"<
By the way, whenever I connnected my device to computer, the bootloader freezes :|
What were you doing before you go into this situation?
I was on Glazed Jelly Bean rom and wanted to go back to stock rom. I used nexus 7 toolkit to do all the work for me. However, there was something wrong like the toolkit didnt extract the stock img right or something like that, my tablet got bootloop, and what happened next was what i had been telling you guys.
Best bet is if somehow you could get into recovery or get adb working. Might want to uninstall drivers and install again and reboot computer. I would suggest using this thread and flash things manually back to stock. http://forum.xda-developers.com/showthread.php?t=1907796 but you would need adb working.
When you power off device and use volume and power can you get it to go into boot loader then plugged into computer try to get to recovery or adb.
Consider deleting the drivers from Windows after uninstalling them otherwise Windows may try to be "clever" and reinstall the bad driver when you plug the device in. The Nexus 7 drivers from Asus can be downloaded here and Google's USB drivers are here
Travisdroidx2 said:
Best bet is if somehow you could get into recovery or get adb working. Might want to uninstall drivers and install again and reboot computer. I would suggest using this thread and flash things manually back to stock. http://forum.xda-developers.com/showthread.php?t=1907796 but you would need adb working.
When you power off device and use volume and power can you get it to go into boot loader then plugged into computer try to get to recovery or adb.
Click to expand...
Click to collapse
What if I couldn't get adb working?
I tried everything and windows still doesn't recognize my device in fastboot
Have you tried Nexus Root Toolkit v .1.5.4?
kiddo94 said:
I tried everything and windows still doesn't recognize my device in fastboot
Click to expand...
Click to collapse
try connecting to the usb port at the back of your computer
Paranoid flashed with the bricked kernel did this to me once right after the move to 4.1.2. Even with a full wipe and all the usual safety precautions it just stuck on bootloop forever and wouldn't let me in. I chalked it up as that's what I get for being the guy that's never satisfied with stock. I was unable to get my nexus7 fixed. I sent you a suggestion on pm though.
Never mind everyone. Thank you so much for your help.
I tried install the nexus 7's driver on another computer and it recognized my device in bootloader mode, and restore everything back to stock now. Thank you so much!!!!
Mine did that to the first time I tried. After I got it to work, the permissions were all messed up and I could not get it to download anything off the web and I was getting a playstore error 90% of the time as well. I finally just wiped everything on my tablet, installed the stock rom via N7 toolkit, then reflashed smooth rom, and all is working now. It may have been a bug with the older version of N7 toolkit, as I updated it before I reran everything.

[Q] Nexus 7 can't boot or restore

I made the dumb mistake today of flashing my Nexus 7 with the wrong gapps and as a result setup would continuously crash.
I first tried to reboot into recovery by entering fastboot mode (power + volume buttons) but all i got was the google logo for all eternity
next I tried reverting to stock with the nexus 7 rootkit but it always failed on the fastboot check saying my device could not be detected.
Assuming my drivers were not working correctly I manually installed the google usb drivers and at this point if I look in the device manager I see Android device > Android Bootloader Interface but if I run the adb devices command I get nothing.
I feel like I'm at the end of my rope here so I could use any suggestions.
p.s. usb debugging is not enabled because I had just done a factory reset and I can't enable it because I can't really access anthing after booting up.
solved
Ok so after installing the google driver I decided to give the root tool and leaving my nexus 7 plugged in for a while I noticed that the fastboot screen was no longer frozen and decided to try the rootkit again and this time it worked like a charm so problem solved!!!
I guess I couldn't detect it with adb because usb debugging wasn't enabled but the rootkit was still able to restore it using the fastboot method.

[Q] Nexus 4 boot loop issue and device ADB not found when phone is on animation scree

Hello all,
Yesterday I saw in my nexus 4 all applications were getting crashed, so I tried to restart my phone. When I turned it back on, it got stuck in the boot animation. I cancelled the boot, and tried to boot it from the BootLauncher and in Recovery mode. Nothing worked. I tried booting it up last night and its been doing so since. Over 10 hours! What do I do? What is happening?
Its bootloop issues. I tried to install nexus root tool kit but it says "ADB device was not found". I tried my all ways to install drivers but device not getting detected to Nexus Root Toolkit.
My goal is to configure my device so that adb can communicate with it when its on (with USB debugging enabled) and also so that fastboot can communicate with it when its in bootloader mode.
Any help would be sure appreciated
Thanks!
Wipe Data or check your adb setup
Your emmc chip might be bad
Sent from my Nexus 4

Nexus 6p unresponsive screen with OS lock

Hello Everyone,
I have an issue with my nexus 6p screen all of a sudden being unresponsive to touch. The big error on my part was not setting up my videos and images to automatically backup. So now what i'm trying to do is unlock the phone using ADB and a usb cable but haven't had any luck. I've gotten as far as listing my devices, which show up an unauthorized and seem I can only authorize it from my phone. Q1. is this true? Could there be any other way to authorize my phone, or am I out of luck and my data is kaput? I've also tried an OTG cable but it doesn't load since i'm guessing the OS has to fully load for the cable work.
Do I have any choice on saving my data with a USB cable and command line or can someone suggest a tool that would help me out of this situation?
Put it into fastboot/download mode and flash the latest TWRP recovery.
Use TWRP's file manager or ADB Pull commands to pull your data off. Use ADB push to push a new ROM image and flash over everything except userdata (back it up just in case).

Categories

Resources