Bootloop after 4.3 OTA, USB and thus Fastboot not working! - Nexus 4 Q&A, Help & Troubleshooting

I got a serious problem with the N4 of a friend.
First thing to know: his display was broken and he got it repaired. Afterwards, his phone was running fine. Then, he got the Android 4.3 OTA. He accepted the update, but since then in keeps bootlooping (I won't go past the Nexus-X). As far as I know, everything was stock!
Here are the things I tried:
- first I checked the recovery. Indeed it was the stock one, so nothing to do here.
- I wanted to wipe or flash the stock rom using fastboot but i wasn't able to get a connection. First I thought of driver issues, but my N4 works fine (adb & fastboot) on the same computer.
- Establishing a connection failed on two other computers too (my N4 worked)
- Even the device manager in Windows 7 dosen't even recognize anything when plugging in the usb cable (normally you see the ADB whatever device listed in the device manager)
- Right now I tried to get a connection using Ubuntu. Again, no usb device was recognized when plugging in the cable.
So right now, I'm a bit lost. It seems, that the usb port is broken since I can not establish a connection. And without that, I won't be able to wipe or flash anything using fastboot.
Does anyone have an idea what could have gone wrong? I'm still able to boot into the bootloader and see the information:
Bootloader version: MakoZ20i
Radio: .84
HW Version 11
16GB version
According to these information, it seems that the 4.3 Update finished at least the bootloader and radio. But it won't boot into the rom. Could the download mode be of any help?
I appreciate any help.
Thanks.

Since you are in the bootloader scroll up to recovery and select it.
Now you will see a android opened up with "No command." written below the android.
Press volume up and power until it unlocks the recovery and try to wipe the data and cache partition followed by dalvik cache.
Sent from my Nexus 4 using Tapatalk 4

Thanks for your idea, but it turned out to be hardware problem!
I took the device to the lab and had a look at the usb connector. The contact in the middle was teared of the carrier and was stuck to the back and thus no data connection could be established! I was able to to bend it back (more ore less) to its initial position and now its working. Though I'm wondering how long it will last until its pushed back again.
Fact is, that i was able to connect via fastboot. I tried to flash 4.3 again but it still didn't boot. Its back to 4.2.2 and its working now.
Again - thanks for your idea.
Thread can be closed!

Related

[Q] Update to 4.4 brick

Hello, after updating my Nexus 7 (Wi-FI) via OTA my nexus wouldn't turn on... it just got stuck on the nexus logo.
I tried wiping, flashing the OTA via sideload, also tried flashing the factory image also via sideload, but I kept getting an error (error 7 I think).
After that, I used the fastboot update image-nakasi-krt16s.zip but it got stuck on sending system < 611886 KB >.
I don't know what else to do, any help would be appreciated!
Same problem here. I'm running a pure stock. In rooted device and it bricked on me.
Sent from my SGH-M919 using XDA Premium 4 mobile app
theblackout said:
Hello, after updating my Nexus 7 (Wi-FI) via OTA my nexus wouldn't turn on... it just got stuck on the nexus logo.
I tried wiping, flashing the OTA via sideload, also tried flashing the factory image also via sideload, but I kept getting an error (error 7 I think).
After that, I used the fastboot update image-nakasi-krt16s.zip but it got stuck on sending system < 611886 KB >.
I don't know what else to do, any help would be appreciated!
Click to expand...
Click to collapse
Speaking of getting stuck with the "sending system" process, It was also mentioned in this thread.
It seems that you could go back to 4.3 by flashing factory images and flash 4.4 factory image again, then you are good to go.
Just for you information.
noradoor said:
Speaking of getting stuck with the "sending system" process, It was also mentioned in this thread.
It seems that you could go back to 4.3 by flashing factory images and flash 4.4 factory image again, then you are good to go.
Just for you information.
Click to expand...
Click to collapse
Same thing using that thread, I.
fastboot erase system
fastboot flash system system.img (old 4.3 img)
stuck on sending system <529061 KB>
getting nervous here, any other ideas?
OK, I finally got it back to life!
I fastboot cwm recovery, then adb sideload this rom: http://forum.xda-developers.com/showthread.php?t=2222374
That should do it
theblackout said:
OK, I finally got it back to life!
I fastboot cwm recovery, then adb sideload this rom: http://forum.xda-developers.com/showthread.php?t=2222374
That should do it
Click to expand...
Click to collapse
I will try this when i get home from work and see how it goes.
Ksealy03 said:
I will try this when i get home from work and see how it goes.
Click to expand...
Click to collapse
Hi, Ksealy03...
Erm... but before you do that... Whilst fastboot flashing stock Android 4.4 (KitKat), you might want to try changing the USB cable that connects your Nexus 7 to your PC to a different USB port on your PC. Or, possibly even changing the USB cable completely.
The 'stuck on sending image' problem is a commonly reported one here on XDA.
Indeed, I myself don't recall NOT having the problem, whenever I fastboot flash factory stock... it's always the same, "Oh no, here we go again... still sending system image" after five minutes. It's almost predictable - I just expect it happen now.
Anyway... I then disconnect my USB cable from my PC, reboot the Nexus 7 bootloader... reconnect my USB cable TO A DIFFERENT USB PORT on the PC - and begin the flash procedure all over again... and then it works! System image goes over.
Quite why this happens, I've no idea... but I suspect it has something to do with the size of system image, 'cos everything else (recovery, etc) goes over quite happily, without problems. At some point the fastboot connection dies (times out?), and you have to re-establish it.
Rgrds,
Ged.
GedBlake said:
Hi, Ksealy03...
Erm... but before you do that... Whilst fastboot flashing stock Android 4.4 (KitKat), you might want to try changing the USB cable that connects your Nexus 7 to your PC to a different USB port on your PC. Or, possibly even changing the USB cable completely.
The 'stuck on sending image' problem is a commonly reported one here on XDA.
Indeed, I myself don't recall NOT having the problem, whenever I fastboot flash factory stock... it's always the same, "Oh no, here we go again... still sending system image" after five minutes. It's almost predictable - I just expect it happen now.
Anyway... I then disconnect my USB cable from my PC, reboot the Nexus 7 bootloader... reconnect my USB cable TO A DIFFERENT USB PORT on the PC - and begin the flash procedure all over again... and then it works! System image goes over.
Quite why this happens, I've no idea... but I suspect it has something to do with the size of system image, 'cos everything else (recovery, etc) goes over quite happily, without problems. At some point the fastboot connection dies (times out?), and you have to re-establish it.
Rgrds,
Ged.
Click to expand...
Click to collapse
Ok im actually trying it now. i have a different USB cable that I will use.
teraonic 318
No luck. because my debugger is not on I can t do anything. ADB and fastboot wont even recognize the device. probably just call up Asus.
Ksealy03 said:
No luck. because my debugger is not on I can t do anything. ADB and fastboot wont even recognize the device. probably just call up Asus.
Click to expand...
Click to collapse
I had a similar issue that I was able to fix. Hopefully this will help you too.
I have a Nexus 7 that is rooted, stock ROM, unlocked bootloader. I have gotten many OTA updates since buying the device, and all previous OTA updates have completed without a hitch.
On the most recent OTA Kit Kat update, the device froze when trying to apply the update. It just displayed the boot animation in perpetuity.
I was able to use the Nexus Toolkit here on XDA (LINK) to load the stock Kit Kat ROM. Hope that helps.

[Q] Bell D803 constant re-boot

A bit of an SOS situation if anyone knows the right steps please
Well, I restored a Titanium Backup and mistakenly toggled the "restore system apk". It ran fine, all restored and then when I rebooted got stuck.
By "stuck", it re-boots constantly. It shows the LG animation, then all I can see is two messages before it starts booting again:
1) "Unfortunately, Google Play Services Has Stopped"
2) "Unfortunately, System UI has stopped
... and then it does the entire boot sequence, animation, again, and again.
Here is what I can do:
* It is in USB debug mode.
* I have drivers on laptop
* I am able to connect with adb and also shell into phone.
* With adb, I have output to the file an "adb bugreport" as well as an "adb logcat".
* I have several backups:
a) The modemsst1.img and modemsst2.img created by Titanium Backup
b) Titanium backups (full apps and data)
c) an "adb backup - all" backup
* I managed to get it into firmware update mode by pressing the volume up button and the power button and then when it flashed red a few times, just the up button. So, I can get it into Firmware update mode.
Of course, I have never really used adb before, except to dabble a bit. So, I am encouraged that I can somehow get into with shell.
I am not unplugging it until I know what to do!
Since then I have been able to turn the phone off and also put it into charging on USB.
This is what worked:
* Hold down power and volume down button until booting stops and phone turns off completely.​
When it does shut down, I kept buttons down until it flashes logo again and then shuts down again. Then I let go. Phone is off and when I plugged in the charger it shows charging animation.
Now, after inspecting the bugreport, I noticed a lot of these messages for all the system apps like this one:
"I/PackageManager(21318): Expecting better updatd system app for com.lge.sizech"​
I think the cause of all this shralp is this, I did a LG Mobile Support Tool "Upgrade Recovery" and then in Titanium Backup I restored an older backup (incl system apks). At least that makes sense seeing all the "Expecting better apdat system app" messages in the bugreport.
Still not sure what to do next
I tried the very good instructions here:
[Guide] Unroot/Unbrick - flash official factory firmware with LG Launche
http://forum.xda-developers.com/showthread.php?t=2471370
The update succeeded. However, when I rebooted the phone it is in the same boot-loop with message that it was before.
I used the BELL D803B10D_00.kdz file. Now I will try with the earlier version BELL D803BA_00.kdz file.
We will see what happens ...
do you have nandroid backup from previous rom?
I have three backups:
1) Titanium Backup (full)
* This was my first backup performed right after rooting device and installing Titanium Backup.
2) Titanium Backup (full)
* Did this 2 days ago. Device was working OK and did as precaution.
3) ADB BACKUP. I did this one before my Titanium restore.
I restored the first titanium backup and that (ooooppps!) was after I did an LG Firmware update.
ALSO:
I am on Windows 7 64 and although adb works fine, fastboot does not. I understand that might be a problem with windows 7 64.
So, unless anyone objects, I am going to redo on my windows 32 machine and also "fastbook oem unlock".
Since firmware is OK, if I do the fastboot oem unlock, that will wipe everything. But I can still boot and re-setip the phone, right?
Just checking before I fudge everything up here ..
ALSO ALSO:
I had antivirus/theft security installed and I disabled it partway through last restore.
Maybe that has somethng to do with this all .
But I am still cool because I can ADB and also firmware install seems ok.
ADB works and that is the one good sign.
or you can follow ADB Sideload method
http://forum.xda-developers.com/showthread.php?t=2318497
zekurosu said:
or you can follow ADB Sideload method
http://forum.xda-developers.com/showthread.php?t=2318497
Click to expand...
Click to collapse
I don't (didn't) have TWRP installed. How can I sideload without it?
Also, should I adb oem unlock to get it wiped at this point?
I'm having a similar problem on a Bell D803. Just happened very randomly today. I turned my phone off for an exam, then turned it back on after.. initially had no signal and a black background. Settings for factory reset wouldn't work. My phone is rooted and has TWRP. I went into recovery and formatted.
Bootloop.
Bootloop.
Bootloop x 20.
I however, don't get the same two messages. I just keep bootlooping.
Got home, tried to go through download mode to unbrick it, but for some reason my computer isn't picking it up. I have all the drivers, and before this incident, it was recognized.
Any solutions?
I'm thinking of buying an OTG USB and then just flashing a stock zip from recovery. Would that be a possible viable solution?
asdfvtn said:
I'm having a similar problem on a Bell D803. Just happened very randomly today. I turned my phone off for an exam, then turned it back on after.. initially had no signal and a black background. Settings for factory reset wouldn't work. My phone is rooted and has TWRP. I went into recovery and formatted.
Bootloop.
Bootloop.
Bootloop x 20.
I however, don't get the same two messages. I just keep bootlooping.
Got home, tried to go through download mode to unbrick it, but for some reason my computer isn't picking it up. I have all the drivers, and before this incident, it was recognized.
Any solutions?
I'm thinking of buying an OTG USB and then just flashing a stock zip from recovery. Would that be a possible viable solution?
Click to expand...
Click to collapse
Well, I am able to connect with adb fine on my laptop (Win 7 64) but not on my desktop (Win 7 32)
But on my Win 7 64 I cannot get into fastboot.
I am wondering if the driver install on my desktop went foo-bar and needs reinstall. Also, I noticed that the website drivers are more recent USB drivers than some of the ones linked on this site.
I used adb uninstall package for many user packages and it was success. But I still see the packages listed in the bugreport?
For example: I already uninstalled "com.benhirashima.skiplock" and also "com.lookout".
Why? What to do to really zap them for good?
Sorry, I posted the wrong link earlier.
This was the guide I used which succeeded but made no difference to the boot-loop.
LG G2 Stock Firmware (Go Back to Stock)
http://forum.xda-developers.com/showthread.php?t=2432476&highlight=d803
Just figured out how to do a factory reset.
http://www.youtube.com/watch?v=3ogBvzbPikc
The hard reset worked and now I am configuring the phone settings!
So, again, this is what I did:
1) http://forum.xda-developers.com/showthread.php?p=45293512
2) http://www.youtube.com/watch?v=3ogBvzbPikc
Not sure if it all worked but I am setting the phone up as we speak (or as I type)
natureburger said:
Well, I am able to connect with adb fine on my laptop (Win 7 64) but not on my desktop (Win 7 32)
But on my Win 7 64 I cannot get into fastboot.
I am wondering if the driver install on my desktop went foo-bar and needs reinstall. Also, I noticed that the website drivers are more recent USB drivers than some of the ones linked on this site.
Click to expand...
Click to collapse
Hmm that's strange. Unfortunately for me, I'm already on 64-bit and it still isn't picking it up.
ALL FIXED UP
WORKING 110%
:good:
natureburger said:
ALL FIXED UP
WORKING 110%
:good:
Click to expand...
Click to collapse
I have followed this to a t.
Succesfully flashed the stock firmware that came with the phone when sold.
Did hard reset using the the power button and volume down
= phone rebooting every 10 seconds, no wifi, imei = null
adb devices = offline.
Really depressed right now. If anybody can help me I would appreciate it.
zprovo said:
I have followed this to a t.
Succesfully flashed the stock firmware that came with the phone when sold.
Did hard reset using the the power button and volume down
= phone rebooting every 10 seconds, no wifi, imei = null
adb devices = offline.
Really depressed right now. If anybody can help me I would appreciate it.
Click to expand...
Click to collapse
Press the power button down and hold it.
It should turn off, then look like it is turning on, (flash logo very briefly) and then turn off.
Let go of power button and it should stay off.
Do that. Now, does it work to turn off completely?
Let's see if you can do that first.
Then .. do hard reset, exactly like this:
http://www.youtube.com/watch?v=3ogBvzbPikc
Does the hard reset screen show and give you hard reset options?
natureburger said:
Press the power button down and hold it.
It should turn off, then look like it is turning on, (flash logo very briefly) and then turn off.
Let go of power button and it should stay off.
Do that. Now, does it work to turn off completely?
Let's see if you can do that first.
Click to expand...
Click to collapse
Yup. I totally understand what you are saying and have done it many times. I had to use that method to get into download mode and also had to use it to do hard reset.
I just reflashed the phone all over again a second time succesfully.
Reboots every 5 seconds. Keyboard came up for a few seconds for the first time in 48 hours during the initial setup phase. 5 seconds later as I was trying to input a wifi code it would not appear. then it rebooted as usual.
I really appreciate any input right now. :cyclops::crying:
zprovo said:
Yup. I totally understand what you are saying and have done it many times. I had to use that method to get into download mode and also had to use it to do hard reset.
I just reflashed the phone all over again a second time succesfully.
Reboots every 5 seconds. Keyboard came up for a few seconds for the first time in 48 hours during the initial setup phase. 5 seconds later as I was trying to input a wifi code it would not appear. then it rebooted as usual.
I really appreciate any input right now. :cyclops::crying:
Click to expand...
Click to collapse
1) Are you able to completely turn it off using my instructions?
2) When you hard reset (2nd half of this video), http://www.youtube.com/watch?v=3ogBvzbPikc
a) Does the hard reset screen show?
b) Does it give you the hard reset options?
3) Before it was bricked, was it in 'usb debug mode' in developer options?
4) Which kpz version did you restore to?
5) Did your "adb devices" ever work? Did your "adb shell" ever work?
natureburger said:
1) Are you able to completely turn it off using my instructions?
2) When you hard reset (2nd half of this video), http://www.youtube.com/watch?v=3ogBvzbPikc
a) Does the hard reset screen show?
b) Does it give you the hard reset options?
3) Before it was bricked, was it in 'usb debug mode' in developer options?
Click to expand...
Click to collapse
1) Yes absolutely. It is sitting next to me right now doing nothing at all because I turn it off when I am not trying to fix it, otherwise it keeps rebooting relentlessly.
2) a) Yes, same as the video. b) Yes it says the same exact thing as the video. I press power key twice and it begins. The stock recovery android appears with a loading bar on the bottom for ~1 minute then it goes to the boot "lg animation".
3) Yes it was. Before it was bricked I essentially always had it in debug mode because I successfully rooted it and simply left it on debugging mode after having to activate it to root.
4) D801V11B_00.kdz The EXACT same as the original. This is a Videotron (canadian) phone. I can clearly remember without a doubt going into about phone and this is what it was running before all of this happened.
5) I am having a bit of memory strain here, but I do believe it also said adb devices before any of the issues came. It is a good point I will try "adb device" from another trusted computer.
Other notes: I can browse the android os for a few seconds. Sometimes sound does not work, wifi is non functional (even though the keyboard never appears, I managed to have a security free wifi in my proximity and it would not connect (was saying: temporarily avoiding bad signal)) and also I do have modemstat1.img and modemstat2.img backups for EFS.
adb devices consistently shows "offline" but it is definitely recognizing the phone. I have also tried using usb debugging activated and still "offline". Drivers are up to date and all.
The upper drawer in the usual g2 user interface is strange now. it doesnt have anything except for the date (1970 something...) and a "gear" icon for system settings. I am talking the drawer you drag down from the top of the screen.
This phone was working with absolutely no problems 2 days ago.
Thank you so much for looking into this. I have certainly exhausted my repairing capacities. I am entirely dependent upon the knowledgeable individuals in here from here on out.
zprovo said:
1) Yes absolutely. It is sitting next to me right now doing nothing at all because I turn it off when I am not trying to fix it, otherwise it keeps rebooting relentlessly.
2) a) Yes, same as the video. b) Yes it says the same exact thing as the video. I press power key twice and it begins. The stock recovery android appears with a loading bar on the bottom for ~1 minute then it goes to the boot "lg animation".
3) Yes it was. Before it was bricked I essentially always had it in debug mode because I successfully rooted it and simply left it on debugging mode after having to activate it to root.
4) D801V11B_00.kdz The EXACT same as the original. This is a Videotron (canadian) phone. I can clearly remember without a doubt going into about phone and this is what it was running before all of this happened.
5) I am having a bit of memory strain here, but I do believe it also said adb devices before any of the issues came. It is a good point I will try "adb device" from another trusted computer.
Other notes: I can browse the android os for a few seconds. Sometimes sound does not work, wifi is non functional (even though the keyboard never appears, I managed to have a security free wifi in my proximity and it would not connect (was saying: temporarily avoiding bad signal)) and also I do have modemstat1.img and modemstat2.img backups for EFS.
adb devices consistently shows "offline" but it is definitely recognizing the phone. I have also tried using usb debugging activated and still "offline". Drivers are up to date and all.
The upper drawer in the usual g2 user interface is strange now. it doesnt have anything except for the date (1970 something...) and a "gear" icon for system settings. I am talking the drawer you drag down from the top of the screen.
This phone was working with absolutely no problems 2 days ago.
Thank you so much for looking into this. I have certainly exhausted my repairing capacities. I am entirely dependent upon the knowledgeable individuals in here from here on out.
Click to expand...
Click to collapse
Hmmmm..... why your adb devices is not working? But the re-pair works and you can then do hard reset.
But that is good information you shared.
Maybe someone else can chime in.
From my experience:
1) adb usb access seems spotty. My win 7 64 connected fine and it even kept the shell through the reboot cycle. But on my win 7 32 machine it was only detecting device and then not able to shell.
2) I was also able to use from the LG website LG MOBILE SUPPORT TOOLS.
Download the LG MOBILE SUPPORT TOOL
I downloaded the most recent one from the LG website and make sure to select your options >> country and then the correct phone model at the upper right hand corner of the tool.
Then install USB driver for correct phone model.
Then see if USB works, "adb device" should return the device code.
"adb shell" should show the shell prompt.
3) There is always fastboot. But I an noob and know 0% about how to properly connect and use it.
Some others please chime in and help this droid bro!

Nexus 4 Won't Start (Backlight Comes On)

Hello,
I've had my Nexus 4 for about six months now and have never had any issues with it until two weeks ago. I've been using TWRP and multirom on it to try out Firefox OS, CM11, LuneOS, Sailfish OS, and Ubuntu Touch (running with 4.2.2 as base per requirements for Sailfish and LuneOS). I installed the latest LuneOS build about two weeks ago which involves installing via MultiROM and then switching it to be the primary ROM for the device (temporarily moving Android 4.2.2 to a secondary ROM going back into recovery and reversing it when I'm ready to use my other OS's again).
Anyways I started up LuneOS as usual with no issues and messed around with a bit before deciding to reboot (still into LuneOS not recovery) for whatever reason but the phone never did turn back on. I set the phone down for a few minutes not paying attention so I'm not sure if anything (visibly) unusual happened.
I'm not able to get it to go into recovery mode no matter how long I hold volume down + power (or any other combination of the volume/power buttons) and Nexus Root Toolkit does not detect any ADB devices. I've managed to get it to show up in Device Manager twice under Other Devices as "Jellybean on Mako" but still can't do anything with it.
When I plug the device in I can see the backlight turn on but nothing ever displays on the screen. I've been trying for two weeks now and have tried charging it for hours plugged up to my PC, original wall charger, QI charger, and have even taken the device apart to unplug the battery for a while which didn't help either.
Any input would be appreciated as I'm pretty discouraged at this point.
Does phone respond to fastboot commands?
audit13 said:
Does phone respond to fastboot commands?
Click to expand...
Click to collapse
It doesn't appear so. In Nexus Root Toolkit I get the error message that FASTBOOT device was not found.
Just to update I bought a new battery and replaced it and still have the exact same issue with the device so I can safely rule that out. Does anyone else have any suggestions please?
Maybe some info in this thread will be of use: http://forum.xda-developers.com/nexus-4/general/tutorial-how-to-unbrick-n4-t2347060
You said it finds "Jellybean on mako" did you try doing adb reboot recovery or adb reboot fastboot? Might work if you had debugging on. Also what shows up on the screen when you shut the device down and attempt to go to bootloader?

Probable brickage of TN7

Hi folks,
So, after little usage due to instability caused by the Lollipop upgrade I hadn't used the TN7 in a while. Yesterday I thought I'd have a go at reconditioning it.
Background: The bootloader has been unlocked, recovery was TWRP, I'd flashed and reflashed stock ROMs of KitKat and Lollipop several times previously. The main problem in Lollipop was that whilst the SD card files were showing up fine in FS Explorer, I couldn't see any of my files or folders when looking at local storage. Also, Google Play Services refused to update (or install using an APK).
Yesterday I grabbed the factory ROM from the nVidia site to do a full factory install and reset. I followed the instructions, flashing the recovery, boot, system, userdata, staging blob and dtb in that order. I then rebooted and...nothing. No power (or so it appears), no boot screen, no ability to get back into the bootloader, nada, zilch. When I read back through the flash commands I noticed that the final part of flashing the system image failed, which could well be the cause - I should have paid more attention.
I've searched all over and tried multiple options to get the TN7 to boot or show some signs of life. I don't even get an LED showing when plugged into a wall socket to charge.
The device doesn't show in fastboot or adb on the Mac. I did however get a small sign of life from Windows. If I hold down the power button for around 10 secs and let go, I can hear the Windows chime of a device connecting, immediately followed by a disconnect sound, the Device Manager updates but shows nothing new.
So my question is: have I completely screwed the pooch, or is there something that can be done to resurrect it?
Cheers for reading,
Gray
Evil Penguin said:
Hi folks,
So, after little usage due to instability caused by the Lollipop upgrade I hadn't used the TN7 in a while. Yesterday I thought I'd have a go at reconditioning it.
Background: The bootloader has been unlocked, recovery was TWRP, I'd flashed and reflashed stock ROMs of KitKat and Lollipop several times previously. The main problem in Lollipop was that whilst the SD card files were showing up fine in FS Explorer, I couldn't see any of my files or folders when looking at local storage. Also, Google Play Services refused to update (or install using an APK).
Yesterday I grabbed the factory ROM from the nVidia site to do a full factory install and reset. I followed the instructions, flashing the recovery, boot, system, userdata, staging blob and dtb in that order. I then rebooted and...nothing. No power (or so it appears), no boot screen, no ability to get back into the bootloader, nada, zilch. When I read back through the flash commands I noticed that the final part of flashing the system image failed, which could well be the cause - I should have paid more attention.
I've searched all over and tried multiple options to get the TN7 to boot or show some signs of life. I don't even get an LED showing when plugged into a wall socket to charge.
The device doesn't show in fastboot or adb on the Mac. I did however get a small sign of life from Windows. If I hold down the power button for around 10 secs and let go, I can hear the Windows chime of a device connecting, immediately followed by a disconnect sound, the Device Manager updates but shows nothing new.
So my question is: have I completely screwed the pooch, or is there something that can be done to resurrect it?
Cheers for reading,
Gray
Click to expand...
Click to collapse
Hi,
It can be fixed via apx mode.
Download drivers and switch to apx mode.
Follow instructions http://mobileviandroid.blogspot.in/2015/07/nvidia-tegra-note-7-apx-images.html?m=1
Remember to change your device serial number as mentioned in instructions.
I also faced the same problem as you are facing now. It fixed. If you need any help further just post. God bless. Hope it helps
DJDON1302 said:
Hi,
It can be fixed via apx mode.
Download drivers and switch to apx mode.
Follow instructions http://mobileviandroid.blogspot.in/2015/07/nvidia-tegra-note-7-apx-images.html?m=1
Remember to change your device serial number as mentioned in instructions.
I also faced the same problem as you are facing now. It fixed. If you need any help further just post. God bless. Hope it helps
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Click to collapse
Lol that site ripped my Tutorial! how nice of them, You should of linked the person to https://forum.xda-developers.com/nvidia-tegra-note-7/general/nvidia-tegra-note-7-apx-images-t3149839

Stuck in rescue mode after tried flashing stock firmware

Good evening! I hope you can help me.
I flashed LineageOS 14.1, but I wanted to go back to EMUI. I made all the wipes and tried to flash different stock firmwares through a forced update (volume buttons + power button), but it never worked. At that point, I read about a guy in this forum who suggested to create a flashable zip with Huawei Update Extractor: I followed the suggestion and tried to flash it with TWRP. No error was given, but when I tried to restart, TWRP told me I had no OS installed. I thought it was strange, so I tried to restart anyway. That's when I got in rescue mode. I can't get into the recovery and I can't use fastboot. What rescue mode shows me is:
RESCUE MODE
Attention!
Please update system again
Update User Guide:
*link*
*android avatar*
Error!
Func NO: 10 (boot image)
Error NO: 2 (load failed!)
Pressing the three buttons, I'm able to force an update. The problem is I can't find a firmware that doesn't get rejected. With Lollipop firmwares, it starts to install, but it fails at 12%. With Marshmallow ones, the installation process doesn't even start.
What can I do to make it work again? I'm very sad because this phone was gifted to me a couple of days ago and I already messed it up. I don't even know how to turn it off.
What can I do to get in fastboot mode? At that point, what should I do to flash the stock firmware? Or maybe do I need to find the first stock firmware ever installed into this phone to make the forced update work?
Please, I need help. Thank you in advance!
P.S. The phone's model is ALE-L21. I live in Italy, so I assume it's a European version.
Did you managed to fix this?
Jhon_Locke said:
Did you managed to fix this?
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Not yet, but I'm working on it. I found out that the device is recognized by my PC if I follow these steps:
1. Connect the phone to the PC and wait for it to go in rescue mode;
2. Wait until the notification LED stops to blink;
3. Disconnect the USB cable;
4. Press volume - and power button;
5. Reconnect the cable.
At that point, the screen turns black and the phone is recognized as "㄰㌲㔴㜶㤸". I installed the drivers and now it's recognized as "HUAWEI USB COM 1.0". I should be able to reflash the partitions and make my phone work again, but I'm still trying to understand how to do it correctly.
Any help is appreciated!
ErikChimello said:
Not yet, but I'm working on it. I found out that the device is recognized by my PC if I follow these steps:
1. Connect the phone to the PC and wait for it to go in rescue mode;
2. Wait until the notification LED stops to blink;
3. Disconnect the USB cable;
4. Press volume - and power button;
5. Reconnect the cable.
At that point, the screen turns black and the phone is recognized as "㄰㌲㔴㜶㤸". I installed the drivers and now it's recognized as "HUAWEI USB COM 1.0". I should be able to reflash the partitions and make my phone work again, but I'm still trying to understand how to do it correctly.
Any help is appreciated!
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Click to collapse
fastboot detects your device when you plug it into your computer?
I mean, if you run "fastboot devices" it shows your phone?
I've had this same problem but with an P8 Lite 2017, after flashing some ROM that supposedly was the stock one and trying to flash recovery I ended up with my phone bootlooping into rescue mode, I was able to "bypass" this thing rebooting my phone like crazy, seriously like after 20 reboot it finally booted into the damn ROM and I never touched the phone again. Sometimes when the phone ran out of battery and tried to power it on the phone booted into rescue mode and again after some reboots it booted to Android but now I want to install a custom ROM or at the very least root this damn phone so that's why I'm asking you if you have solved this, if you do then probably if I follow the same steps I would be able to fix that screen, hopefully.
If you are able to flash something start with flashing all recoveries your update.app has, maybe that's the problem (at least in my phone it is).
Jhon_Locke said:
fastboot detects your device when you plug it into your computer?
I mean, if you run "fastboot devices" it shows your phone?
I've had this same problem but with an P8 Lite 2017, after flashing some ROM that supposedly was the stock one and trying to flash recovery I ended up with my phone bootlooping into rescue mode, I was able to "bypass" this thing rebooting my phone like crazy, seriously like after 20 reboot it finally booted into the damn ROM and I never touched the phone again. Sometimes when the phone ran out of battery and tried to power it on the phone booted into rescue mode and again after some reboots it booted to Android but now I want to install a custom ROM or at the very least root this damn phone so that's why I'm asking you if you have solved this, if you do then probably if I follow the same steps I would be able to fix that screen, hopefully.
If you are able to flash something start with flashing all recoveries your update.app has, maybe that's the problem (at least in my phone it is).
Click to expand...
Click to collapse
No, it doesn't show anything if I write that command...
I guess mine won't ever boot into the rom because it seems like there's no system installed. I made some researches and found out there are some softwares that let you reflash the partitions IF the phone is recognized as "HUAWEI USB COM 1.0". I'm still trying to figure out how to do it correctly though. I feel like if I do something wrong, then my phone won't probably turn on again.
In your case, you should be able to flash a custom rom without any issue. You just have to be very careful and inform you as much as you can: I don't want your phone to end up like mine?. Anyway, it seems pretty hard to go back to the stock rom, so think about it before you flash a custom rom. Also, make a Nandroid Backup is very important.

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