[Q] Nexus s 4g locked up - Nexus S Q&A, Help & Troubleshooting

Okay, first of all I know, I'm a total noob. I have followed these forums a long time and have successfully rooted a few phones. One of which was my nexus s 4g. I was trying to unroot the phone so I could get ics. This is when I ran into problems and right now I just want to be able to get my phone working again. Right now I am stuck on the Miui boot up screen and no matter how long I wait it stays on that screen. If I do a battery pull and hold down power and vol up I can get into the bootloader screen with the information as follows: fastboot mode, product name-Herring, HW Version Rev 34, Bootloader version-D720SPAKE1, Baseband version-D720SPAKE1, Carrier info, SPR, serial number-37308B81276A00EC, Lock State-locked. Then the different options I can choose are reboot bootloader, reboot, recovery, power off. If I choose reboot, it takes me back to the mius screen and stays there. If I choose recovery, I get the triangle with the exclamation point. I then hold power and up volume again and I get a screen that says Android system recovery <3e> with reboot system now, apply update from sd card wipe data/factory reset and wipe cache partition. I have tried all of these as well with no luck. When I go to apply update from sd card I get matrix-cfs_v15.5 zip, root.zip, update.zip and then what looks like apps such as Alarms/, Android/,MIUI?, etc. If I try to select any of the first ones such as matrix-cfs_v15.5 zip, I get Install /sdcard... , finding update package..., opening update package..., verifying update package..., E.signature verification failed, Installation aborted. Then it gives me the system recovery options again. Any help would be appreciated.

Did you try ADB fastboot method?

Not sure how to try that

I tried doing the adb, followed all directions and installed and when I go to the command prompt and type in anything, such as, adb reboot bootloader I get, adb is not recognized as an internal or external command, operable program or batch file.

ok I got that working now but when I type adb devices and press enter I get a message saying List of devices attached and then it doesn't show anything and I get the command prompt again saying:c:\android\android-sdk\platform-tools>

also since the phone is stuck in either the miui screen or bootloader I can't get into it to put it in usb debugging mode. I am trying on my own to get this going and am stuck any and all help would be very much appreciated.

TerryUK98 said:
Lock State-locked.
Click to expand...
Click to collapse
I think that means you have a locked bootloader.
And from what you're telling, I believe you have stock recovery.
Also, when you're in fastboot mode, I don't think adb commands apply. Use fastboot commands instead (i.e. fastboot devices).
Search for guides showing you how to install and use fastboot.

I did fastboot as well and the problem I think I am having is it's not recognizing my phone because usb debugging wasn't turned on before it locked up. How would I get it to recognize my phone or download an img to my phone if it is not being recognized. Sorry if this is a stupid question.

You don't need usb debugging in fastboot mode.
You either:
1. Don't have drivers installed.
2. Don't have fastboot installed correctly.
You really need to read a guide or two, through and thoroughly.
Bc it sounds like you have no clues.

Yeah dude. Take a step back and go over what you have installed and where you installed it.Yes, fastboot commands start with fastboot instead of adb. And you're on stock recovery.

Thanks for the answer that I don't need usb debugging in fastboot mode, I wasn't sure of that. I have downloaded and installed my drivers multiple times and when I use the device manager to update drivers it says I have the latest drivers installed already. Whenever I do fastboot commands I will type in fastboot devices and shouldn't my device serial number come up? It just gives me the line c:\android\android-sdk\platform-tools>
And is waiting on me to type a command in. And yes I have been looking at guides all night. I appreciate any help you guys might have and remember we were all noobs at one time.

The zip in this tutorial should help.
It has adb, fastboot, and the drivers needed.
And unlock the bootloader because it is locked.

Finally got it, I had everything downloaded that I needed already, but looking at different forums, etc, it seemed like everyone named it something different. So I just used the one link you gave me and did it exactly the same way and it worked. Thanks so much! and again thanks for your patience.

Related

[Q] Nexus S not working...

I'm going to probably get a lot of hate for this because there are a ton of forums that might get me here. I did search for about 3 hours tonight and discovered some things but am still confused. I hope someone can help this be more simple. So a friend has a Nexus S that isn't working (I have a Nexus S by the by too). It's unlocked but no ClockWork on it. I can press volume up and power to get to fastboot mode. When I click on "reboot," the phone will just loop on the Google logo. If I click recovery, it starts to boot then shows the triangle with the exclamation mark. From there, I can press power and up or down on volume to get the blue screen which says reboot system now, apply update, wipe, wipe. You get it. I'm stuck...I can also turn off the phone, hold volume up/down and plug in the usb to get to "downloading..."
I want to get this phone working and back to stock. I have the SDK Manager (my phone isn't rooted so I use it to take screenshots) and pda net (which I still don't understand why or how to use with this) and two versions of Odin. It seems like Odin can get this working but I can't get it to work or find a clear guide on how to use it and which ones to use. This is a Tmob Nexus S, I think the i9020. Any help would be so greatly appreciated and I will give you all the credit. Oh, and i can pull up the device on ddms with the sdk manager and can explore the files but there is nothing. I can't find a way to drag a file on the phone to "apply update from /sdcard." Sorry again and thanks again!
callison.168 said:
I'm going to probably get a lot of hate for this because there are a ton of forums that might get me here. I did search for about 3 hours tonight and discovered some things but am still confused. I hope someone can help this be more simple. So a friend has a Nexus S that isn't working (I have a Nexus S by the by too). It's unlocked but no ClockWork on it. I can press volume up and power to get to fastboot mode. When I click on "reboot," the phone will just loop on the Google logo. If I click recovery, it starts to boot then shows the triangle with the exclamation mark. From there, I can press power and up or down on volume to get the blue screen which says reboot system now, apply update, wipe, wipe. You get it. I'm stuck...I can also turn off the phone, hold volume up/down and plug in the usb to get to "downloading..."
I want to get this phone working and back to stock. I have the SDK Manager (my phone isn't rooted so I use it to take screenshots) and pda net (which I still don't understand why or how to use with this) and two versions of Odin. It seems like Odin can get this working but I can't get it to work or find a clear guide on how to use it and which ones to use. This is a Tmob Nexus S, I think the i9020. Any help would be so greatly appreciated and I will give you all the credit. Oh, and i can pull up the device on ddms with the sdk manager and can explore the files but there is nothing. I can't find a way to drag a file on the phone to "apply update from /sdcard." Sorry again and thanks again!
Click to expand...
Click to collapse
It seems your boot.img file either corrupted or missing.
Find a working copy of file, flash it via ADB interface or fastboot. Flash recovery file CWM. If that doesnt work, Try flashing CM7 Rom or someother ROM.
Did you check http://forum.xda-developers.com/showthread.php?t=895545 ?
Odin should be your last resort, if nothing really works for you.
If you want to return to stock, simply flash the NAND backup found here: http://forum.xda-developers.com/showthread.php?t=884093 .
Disclaimer : I take no responsibility of what so ever happens to your phone, however you should be good if you follow proper steps.
Thanks so much for the quick reply. I think I've made some headway...I can "see" the device with cmd by typing adb devices. After that though, I don't understand how to get the stock nexus s rom on the phone. How do I move that file to my phone (what's the line of code I type)? I've tried "adb install <c:\grh78> but it says the syntax isn't correct. Any more help is so greatly appreciated and I appreciate the already prompt response. Thanks!!!
callison.168 said:
Thanks so much for the quick reply. I think I've made some headway...I can "see" the device with cmd by typing adb devices. After that though, I don't understand how to get the stock nexus s rom on the phone. How do I move that file to my phone (what's the line of code I type)? I've tried "adb install <c:\grh78> but it says the syntax isn't correct. Any more help is so greatly appreciated and I appreciate the already prompt response. Thanks!!!
Click to expand...
Click to collapse
Download your rom of choice (stock, custom)
Flash Cwm via fastboot if you haven't already
Boot into recovery.
Use adb push to push your zipped rom to the sdcard (adb push file.zip /sdcard/file.zip)
Use cwm to flash this zip.
Sent from my Nexus S using xda premium
callison.168 said:
Thanks so much for the quick reply. I think I've made some headway...I can "see" the device with cmd by typing adb devices. After that though, I don't understand how to get the stock nexus s rom on the phone. How do I move that file to my phone (what's the line of code I type)? I've tried "adb install <c:\grh78> but it says the syntax isn't correct. Any more help is so greatly appreciated and I appreciate the already prompt response. Thanks!!!
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?p=9866675
http://forum.xda-developers.com/showthread.php?t=884093
These threads should be a complete solution to your issue.
Disclaimer : I take no responsibility of what so ever happens to your phone, however you should be good if you follow proper steps.
Wow fast responses. I bet it's annoying to help yet another person having issues (again, phone was given to me like this but yeah...) while you guys or gals already know how to do these things very well. Here's where I'm stuck. I enter this code in cmd:
fastboot flash recovery recovery-clockwork-5.0.2.0-crespo.img
and it just says < waiting for device >.
Here's a pic of the screen that I'm on with my phone when i enter the command.
http://imgur.com/Pey3W
If I'm just in the first screen by holding volume up and power, the computer won't read the phone. So I click recovery, the screen shows it's trying to install something then the triangle exclamation mark, i press volume up/down with power and get this screen and the computer can "see" my phone on cmd.
How do I get this flipping clockwork on this phone or get the stock image on my sd card? Thanks again for helping me out guys. I have taken a look at the links you have sent me and that's where i found the download as well as the code to enter. I will keep looking at them but if you find a faster solution, please let me know.
One more thing to be super clear on...when I'm on the screen on the Nexus S that says Fastboot Mode on top in red and Lock State - Unlocked...my computer won't read the phone, therefore I cannot fastboot the recovery img...
callison.168 said:
One more thing to be super clear on...when I'm on the screen on the Nexus S that says Fastboot Mode on top in red and Lock State - Unlocked...my computer won't read the phone, therefore I cannot fastboot the recovery img...
Click to expand...
Click to collapse
So you already tried "fastboot devices" while in fastboot mode?
Edit: Actually it sounds you really want stock so download the complete stock OTA ROM (including boot.img etc.), rename it to update.zip and put it on the root of your sdcard. Boot into the stock recovery like you did already and hit apply update.
EDIT: Go here to download the correct OTA http://forum.xda-developers.com/showthread.php?t=1056062
Find the correct 2.3.6 "Full ROM" for your phone model. Sounds like in those instructions you don't need to rename to update.zip. Haven't seen stock recovery for a while so I don't remember.
If there is a wipe option in the stock recovery then do that first.
Yes I have tried fastboot devices in fastboot mode but nothing because my computer doesn't read the phone in that mode. And yes, I want to put the stock rom on there but that's the key, I can't get access to the root of my sdcard. I can't push anything into the sdcard to flash it. Any ideas what to type or how to access the sdcard? Thanks a million, billion.
Also, I can't get the phone to boot at all, like I can't get passed the Google Logo if I reboot so I can't access the sdcard in the traditional way.
callison.168 said:
Yes I have tried fastboot devices in fastboot mode but nothing because my computer doesn't read the phone in that mode. And yes, I want to put the stock rom on there but that's the key, I can't get access to the root of my sdcard. I can't push anything into the sdcard to flash it. Any ideas what to type or how to access the sdcard? Thanks a million, billion.
Click to expand...
Click to collapse
Connect with adb and type this:
adb shell mount /sdcard
Then type:
adb push rom.zip /sdcard/update.zip
callison.168 said:
Yes I have tried fastboot devices in fastboot mode but nothing because my computer doesn't read the phone in that mode. And yes, I want to put the stock rom on there but that's the key, I can't get access to the root of my sdcard. I can't push anything into the sdcard to flash it. Any ideas what to type or how to access the sdcard? Thanks a million, billion.
Click to expand...
Click to collapse
If fastboot devices returns NOTHING then this is most likely a driver issue. Remove the device through device manager, make sure you have a recent SDK (for the USB driver) and let it re-detect.
callison.168 said:
Also, I can't get the phone to boot at all, like I can't turn on the phone so I can't access the sdcard in the traditional way.
Click to expand...
Click to collapse
If you can get into the boot loader and get a proper USB driver you should be able to flash a recovery.
Once you've flashed Clockwork Mod (recovery) you'll be able to push to the sdcard using ADB or possibly mount the sd card through the CWM menu (although I've yet to have that work).
In order to get a recovery flashed though you need to get fastboot to see your device (unless you can already boot into recovery, then just use ADB).
irishrally said:
Connect with adb and type this:
adb shell mount /sdcard
Then type:
adb push rom.zip /sdcard/update.zip
Click to expand...
Click to collapse
If he's stuck at the Google logo and has a trash boot.img it's not likely he'll be able to get a shell via ADB. Now, if the system is hanging starting a device or looping during boot then that's possible.
krohnjw said:
If he's stuck at the Google logo and has a trash boot.img it's not likely he'll be able to get a shell via ADB. Now, if the system is hanging starting a device or looping during boot then that's possible.
Click to expand...
Click to collapse
He said he can access stock recovery and has connected with adb, unless I read wrong.
irishrally said:
He said he can access stock recovery and has connected with adb, unless I read wrong.
Click to expand...
Click to collapse
Indeed - I saw no clockwork and figured he'd toasted his recovery image as well, but it does look like stock recovery is there. ADB should push fine to the sdcard from recovery then.
More...so if i type in adb reboot bootloader in the recovery screen, it does just that...great. But then my computer makes a noise, a double tap if you will...like a dun dun, like something didn't work. When you plug in something to the computer it usually goes like dun na...but the phone clearly won't read when I'm in bootloader/fastboot mode. So when I type a command, nothing will work...
callison.168 said:
More...so if i type in adb reboot bootloader in the recovery screen, it does just that...great. But then my computer makes a noise, a double tap if you will...like a dun dun, like something didn't work. When you plug in something to the computer it usually goes like dun na...but the phone clearly won't read when I'm in bootloader/fastboot mode. So when I type a command, nothing will work...
Click to expand...
Click to collapse
That noise is that it detects a device has been connected (assuming a recent version of windows). If you want to flash CWM you need to get the driver sorted for the device. No amount of plugging/unplugging is going to fix it.
If you have the stock recovery you can boot into the stock recovery, use adb to push the full OTA package to the sd card and then just flash that from the stock recovery.
callison.168 said:
More...so if i type in adb reboot bootloader in the recovery screen, it does just that...great. But then my computer makes a noise, a double tap if you will...like a dun dun, like something didn't work. When you plug in something to the computer it usually goes like dun na...but the phone clearly won't read when I'm in bootloader/fastboot mode. So when I type a command, nothing will work...
Click to expand...
Click to collapse
Go to the stock recovery like you have done before and type the adb command I wrote above.
Thanks is all I can say. Okay so when I type in the command, this is what I get:
- exec '/system/bin/sh' failed: No such file or directory (2) -
the "stock recovery" I can get into is the picture I posted a link for. That's what I can access as well as the fastboot mode when I first turn on the phone with volume up/power. But when my computer makes the noise that it's connected (using Windows 7 64bit) it makes a different sound then the normal "device connected." Like it's corrupted.
by the way...if we can get this working, I'll post a picture of me holding the fixed phone!

[Q] Stuck on Google logo. Unable to push image file to phone... Please help.

Tried various possible solutions and still can't get past the Google logo. Installed adb and Samsung driver but when executing commands such as "abd remount" or "adb push file.zip \sdcard\" in cmd I get an error saying "device not found".
Does anyone know how I could resolve this issue?
I tried clearing the cache and wiping the data from the phone, and even heating the phone with a hair dryer. I'd very much appreciate any help.
looks like you still be able to get in reovery ? if so , then nothing you should worry , just flash a new ROM
Do you mean like a boot image or a recovery image?
If so then you need to put phone in fastboot mode, hold volume up and power til it comes up on screen, then on command prompt on your computer type in fastboot flash recovery xxxxxxx.img (xxxxx is the name of the file like cwm5.0.2.0.img or whatever)
That should give you a working recovery to flash roms from.
Is your boot loader unlocked?
If you wanna mount then just go to mounts and storage and mount USB storage and it will show up on your computer!
nodstuff said:
Do you mean like a boot image or a recovery image?
If so then you need to put phone in fastboot mode, hold volume up and power til it comes up on screen, then on command prompt on your computer type in fastboot flash recovery xxxxxxx.img (xxxxx is the name of the file like cwm5.0.2.0.img or whatever)
That should give you a working recovery to flash roms from.
Is your boot loader unlocked?
If you wanna mount then just go to mounts and storage and mount USB storage and it will show up on your computer!
Click to expand...
Click to collapse
Thanks for your reply, seems to be hanging on waiting for device. Fastboot appears to be locked and it just hangs on "waiting for device" when I enter the command fastboot oem unlock... Not sure where to go from here.
leeroy88 said:
Thanks for your reply, seems to be hanging on waiting for device. Fastboot appears to be locked and it just hangs on "waiting for device" when I enter the command fastboot oem unlock... Not sure where to go from here.
Click to expand...
Click to collapse
It was a recovery image file by the way. Tried fastboot flash recovery xxxxx.img like you had said but same problem...
leeroy88 said:
It was a recovery image file by the way. Tried fastboot flash recovery xxxxx.img like you had said but same problem...
Click to expand...
Click to collapse
Hmmm try going to cmd prompt and typing in adb devices, if you get nothing then your adb isn't set up properly and you need to go into setting and change the path on your computer.
I know the details are sketchy but gimme a min and I will find you a link
---------- Post added at 03:05 AM ---------- Previous post was at 03:00 AM ----------
http://forum.xda-developers.com/showthread.php?t=1161776
Find the Android sdk folder in your computer, move it to the root of C.
I don't think adb is where this guide says it is, there is a read me in the folder where it was saying it has moved to the platform tools folder.
So anyway find the path to the file and put it where the guide says and you should be on the ball.
Forget adb. You need to use fastboot.
Open a command prompt in the directory with fastboot or cd into it.
Put phone in fastboot mode.
On the command prompt type fastboot devices.
You will see your serial number. If you don't recheck and make sure you did everything. Sdk PDA drivers if need be etc.
Fastboot flash recovery custom recovery img name.img
Boot into recovery
Mounts and storage.
Mount SD card
Put a rom for you device on there.
Unmount
Wipe everything but sdcard from recovery.
Flash the rom by going to install zip from SD card......
Okay still stuck trying to connect to my phone. I haven't been able to get my serial number show when typing fastboot devices in cmd. adb is set up and seems to be working but the list of devices is blank when I type in adb devices. The phone was put into fastboot mode both times. I get <waiting for device> when I try
fastboot flash recovery clockwork-5.0.2-crespo.img
I think the bootloader may be locked as it does say LOCKED under lock state, which is probably the reason why I can't get the recovery image to work. I couldn't install PDANet as it wanted to connect to my phone while in debugging mode at the end of the installation. Would it be possible that fastboot oem unlock won't work with without having PDANet installed? I'd really appreciate any further help on this topic.
You need the drivers.
albundy2010 said:
You need the drivers.
Click to expand...
Click to collapse
I have the Google USB driver package installed from SDK Manager. I had tried to install some other Samsung driver found on another post but it wouldn't install.
Turns out drivers weren't fully installed, managed to get PDANet installed and could connect to the phone with fastboot devices. Serial number was displayed in cmd. Only problems lies with unlocking the bootloader. fastboot oem unlock fails giving an error: too many links. Anyone have a solution to this?
leeroy88 said:
Turns out drivers weren't fully installed, managed to get PDANet installed and could connect to the phone with fastboot devices. Serial number was displayed in cmd. Only problems lies with unlocking the bootloader. fastboot oem unlock fails giving an error: too many links. Anyone have a solution to this?
Click to expand...
Click to collapse
Did you try booting into bootloader in the first place? Volume up+Power
Then you can use fastboot. Forget PDAnet. Just install SDK and ADB
Use this:
http://forum.xda-developers.com/showthread.php?t=1007782
ismailham said:
Did you try booting into bootloader in the first place? Volume up+Power
Then you can use fastboot. Forget PDAnet. Just install SDK and ADB
Use this:
http://forum.xda-developers.com/showthread.php?t=1007782
Click to expand...
Click to collapse
Yeah I was in bootloader at the time, but I noticed that the Lock-State said locked. So I figured I must first use fastboot oem unlock. If I was to try flash with a stock recovery image would I still need to unlock the bootloader? Like I said I was able to use fastboot devices and get my phones serial number to show up, so I think SDK and ADB is properly installed, path set correctly etc.
leeroy88 said:
Yeah I was in bootloader at the time, but I noticed that the Lock-State said locked. So I figured I must first use fastboot oem unlock. If I was to try flash with a stock recovery image would I still need to unlock the bootloader? Like I said I was able to use fastboot devices and get my phones serial number to show up, so I think SDK and ADB is properly installed, path set correctly etc.
Click to expand...
Click to collapse
I don't think you need to unlock the boot loader to flash a recovery image.
I may be wrong but I remember someone saying that once. I had mine unlocked before I had the chance to try it out. What happens when you type in fastboot oem unlock?
nodstuff said:
I don't think you need to unlock the boot loader to flash a recovery image.
I may be wrong but I remember someone saying that once. I had mine unlocked before I had the chance to try it out. What happens when you type in fastboot oem unlock?
Click to expand...
Click to collapse
After typing fastboot oem unlock I get three dots ...
Pretty much straight away it fails and says something about "too many links".
Did you do all the steps from here http://nexusshacks.com/nexus-s-root/how-to-root-nexus-s-or-nexus-s-4g-on-ics-or-gingerbread/ ?
kvaju said:
Did you do all the steps from here http://nexusshacks.com/nexus-s-root/how-to-root-nexus-s-or-nexus-s-4g-on-ics-or-gingerbread/ ?
Click to expand...
Click to collapse
Thanks for your reply, I followed the steps just now and got the exact same error. Before I was trying fastboot oem unlock while in platform-tools but this time I had downloaded the nexussrootICS.zip file, and extracted it to the root of C. I tried fastboot devices and my serial shows up and after fastboot oem unlock I get "status read failed: too many links."
The only difference I seem to have is that in my device manager I have Android Device > ADB Interface, as opposed to SAMSUNG Android Device > ADB Interface.
Not a big difference but that's all I can think of.
the same issue for me. is there any working solution for that?
I recently had success in recovering from this issue.
Here is the link, read the last comment
http://forum.xda-developers.com/showthread.php?t=1894147
GnubbyaBush said:
I recently had success in recovering from this issue.
Here is the link, read the last comment
http://forum.xda-developers.com/showthread.php?t=1894147
Click to expand...
Click to collapse
Thanks! I'll try to do this fancy dancing

[Q]Stuck in bootloop with deleted OS, abd not working.

Hey all,
I have a big problem with my TF700.
I wanted to root my device after unlocking the bootloader through the app, but by being dumb I managed to delete the OS in TWRP (thought it was factory reset) and now I'm in big trouble.
The only thing the tablet loads now is the TWRP 2.2.1 recovery. (TWRP came with a root-package, I didn't install it myself.)
Since I can't load an OS that is apparently deleted, I'm stuck with using the (latest) SDK to get the stock rom back on the tablet.
The problem is, it doesn't work, at all. The device is recognised by my (Win7) PC and the 'adb devices' command gives me the ID and 'recovery'.
If I try to push the ROM to the Sdcard folder (or any folder, for that matter) It gives me a "protocol error" with no other explanation.
If I try to sideload it it is stuck on "Waiting for device".
I tried the 'shell' command, just to see what that does, but it also gives me an error.
Other commands can also give the the "error: closed" message.
Since both of those commands don't work, I can't get anything on this tablet, since I can't get this version of TWRP to mount an external (micro) SDcard, the option simply isn't there.
Can anyone help me with this, of has my tablet been reduced to an expensive paperweight?
That's the problem with packages - you don't really know what's in it...
What root package did you use?
You have a very outdated recovery installed. I'm guessing here, since you didn't post your bootloader version and that's the first thing we need to know!
Can you still get into the bootloader?
Boot with Power and Volume Down buttons until you see the tiny script and post your bootloader version. Should be something like 10.6.1.....
Do NOT do anything else in recovery at this point!!!! If it is incompatible with your bootloader you could hard brick!
Once we know if you have fastboot access and what your bootloader version is, we can help you to flash the correct recovery in fastboot. With that installed it's a piece of cake to get you up and running.
But be patient! Don't do anything else you're not quite sure of!
*Update Below*
I believe the culprit was the 'Install recovery' method "Scott's Recovery install tool"
I tried a few but most didn't do anything. Every tool I tried comes from the xda forums and checked youtube videos explaining the steps.
If I boot using Volume down + power, nothing extra happens. I just see in the left hand corner "this device is unlocked", since I unlocked the bootloader using the ASUS app.
If I use the command adb reboot bootloader, it goes to TWRP 2.2.1.
Does this imply that I also deleted the bootloader?
Update: I deleted all drivers and software regarding the tablet from my PC and I installed the adb setup package from these forums and reinstalled the (universal?) driver package. This turned out to be a newer version of adb, and I actually managed to push a file to the tablet with no problems. I am reluctant to try anything else at the moment, since this whole ordeal had given me quite the scare (and the desire to learn more about this all)
Can anyone help me revive my tablet?
FooYoungHi said:
*Update Below*
I believe the culprit was the 'Install recovery' method "Scott's Recovery install tool"
I tried a few but most didn't do anything. Every tool I tried comes from the xda forums and checked youtube videos explaining the steps.
If I boot using Volume down + power, nothing extra happens. I just see in the left hand corner "this device is unlocked", since I unlocked the bootloader using the ASUS app.
If I use the command adb reboot bootloader, it goes to TWRP 2.2.1.
Does this imply that I also deleted the bootloader?
Update: I deleted all drivers and software regarding the tablet from my PC and I installed the adb setup package from these forums and reinstalled the (universal?) driver package. This turned out to be a newer version of adb, and I actually managed to push a file to the tablet with no problems. I am reluctant to try anything else at the moment, since this whole ordeal had given me quite the scare (and the desire to learn more about this all)
Can anyone help me revive my tablet?
Click to expand...
Click to collapse
Ok, good - you got adb working. The adb command to boot into the bootloader is
Code:
adb reboot-bootloader
Note the hyphen
Also I wonder if you pushed Power and Volume Down long enough. You should feel the tablet vibrate twice, then see some tiny script and 3 icons appear. That would be the bootloader menu and in it, you are in fastboot mode by default.
The next step would be to check if you have a fastboot connection.
The command for that is
Code:
fastboot devices
Read my guide on flashing a custom recovery and rom very carefully and follow the steps outlined to get TWRP 2.8.0.1 on your tablet.
Ask any questions you may have in that thread.
http://forum.xda-developers.com/showthread.php?t=2688891
Edit: Sorry, forgot that we have to determine your bootloader version first. So use the button combination or the adb command to boot into it and post it. Don't worry. I don't think you did anything to the bootloader - it's not that easy to mess it up...
Unfortunately, the adb code doesn't work, with or without the hyphen. The device will reboot, but will return to TWRP.
I've held down the Volume down+power button for more than a minute witout result. The device will just reboot after a while for as long as I'm holding it. I do see the screen flicker for a second.
I've also noticed, that after I push a file to the tablet, that after a reboot it loses the data I just moved.
After booting TWRP, when I look in the command line of TWRP, it tells me that it can't mount the 'system' , 'data' and 'cache' forders. (tw_mount)
And it specifically mentions (multiple times) that the /data folder failed to mount, giving the message "No such file or directory"
It seems I really managed to F'ed it up good...
My "force-boot-to-bootloader" kernel module might help you unbrick. Read this guide very carefully before you do anything:
http://forum.xda-developers.com/transformer-tf700/help/guide-t2853546
You people are my new heroes!
The last guide did the trick. The stock firmware is installed and I'm currently updating and installing all the apps.
Thank you all só much, you really saved me a ton of frustration.

LG GPAD 7 stuck on Fast Boot

Purchased an Lg Gpad 7 Wifi tablet (v400) 2 weeks ago. Came with preinstalled Lollipop android so i couldnt install a recovery rom to flash any other custom roms. Downgraded to Kitkat version following the instructions on Xda forums and succesfully installed Twrp. When i installed Cyanogenmod 12.1 through Twrp i got stuck in fastboot screen.
Any suggestions and / or solutions would be greatly appreciated.
I had a similar problem.. Only mine was stuck at the bootloader. Go in TWRP and repair /data and other partitions. My data partition gave me an error since F2FS is a little flaky and some ROMs corrupted it (claimed they supported it). I would recommend erasing the system, cache and data partition if you can't get into TWRP.
The problem is i cant get out of fastboot whatever i try. It says start on bootloader but the tablet just restarts on an empty screen doing nothing.
Hakalai said:
The problem is i cant get out of fastboot whatever i try. It says start on bootloader but the tablet just restarts on an empty screen doing nothing.
Click to expand...
Click to collapse
if you have an sd card, try removing that, then reboot.
if that doesnt work, try entering fastboot command, fastboot continue
Tried without sdcard and i get the same fastboot screen.
How can i give any commands? The only options i have are Restart Bootloader / Restart / Power off. Tried restarting bootloader but i get nothing in return tablet just stays on with nothing on screen.
Hakalai said:
Tried without sdcard and i get the same fastboot screen.
How can i give any commands? The only options i have are Restart Bootloader / Restart / Power off. Tried restarting bootloader but i get nothing in return tablet just stays on with nothing on screen.
Click to expand...
Click to collapse
you said it was stuck on fastboot, if thats the case, install any needed drivers on your pc, connect device to it, open a terminal in the fastboot dir (after you go get fastboot), then try those commands i gave. you could also try, fastboot reboot dont think i mentioned that before.
bweN diorD said:
you said it was stuck on fastboot, if thats the case, install any needed drivers on your pc, connect device to it, open a terminal in the fastboot dir (after you go get fastboot), then try those commands i gave. you could also try, fastboot reboot dont think i mentioned that before.
Click to expand...
Click to collapse
Did as you said but every command i gave gives me an error message in adb terminal. There are new lines in fastboot menu in tablet now. Bottom two are SECURE BOOT - enabled & LOCK STATE - locked.
Hakalai said:
Did as you said but every command i gave gives me an error message in adb terminal. There are new lines in fastboot menu in tablet now. Bottom two are SECURE BOOT - enabled & LOCK STATE - locked.
Click to expand...
Click to collapse
hmm, ok, im guessing it would have said that normally, when not broken. all the command does is try to release it past where its stuck. it doesnt actually flash, lock, unlock, or change anything.
imo, this seems good, because now we know fastboot is working.
i own lg devices, but not your specific device. i would hate to give you some bad advice and make your tablet broken more, but if it were me in this situation, i would try to flash the factory KK firmware you used to downgrade with odin or however you did it. hopefully, that will clean everything up and let it boot properly.
if for whatever reason you cant do that, we could try extracting the factory file, and just flashing recovery and system, those should be the only things that got changed putting on twrp and cm normally.
Sorry, I have the serious proplem wtih my LG pad V400, I rooted it and using <LG Flash Tool 2014> with <V40010c_00.kdz> to downgrate the firmware but their is error then my LG pad stuck in fastboot menu as with just turn off, restart and restart bootloader. if i seclect one one them the tablet just logged again the fastboot menu
it stuck on the fastboot menu and i cannot do nay think with it. I can restart with factory restore mode but when select yes to restore, it will restart and log in fastboot menu again.
I downloaded adb and fastboot program and put in one folder <Minimal ADB and Fastboot> in C:\Program Files (x86)\Minimal ADB and Fastboot
I dont have recovery image so i download file <cm-13.0-20160421-NIGHTLY-v400-recovery.img> form your link to download TWRP file
move it to folder of fastboot programe and changed its name to <recovery.img>
I turn on the tablet and it waited at fastboot menu
when i run the command <fasboot flash recovery recovery.img> and they said some thing wrong like in picture
please help me

flashing pixel 2 without usb debugging

Hey guys, I need help flashing my Google pixel 2. It was off for a couple of months and now when I am trying to start it, its not booting without putting it on charge and even then it only shows the battery icon then the google icon and restarts (So a bootloop). But when I press and hold the power button and volume down key, it goes in the fastboot mode ( the one where all device information is shown with an Android Logo) (Pic att).
If I select Download mode, it just shows operation denied and if I select recovery mode then it goes to bootloop again. Also as far as I remember when I last used the phone, the usb debugging was turned off so please suggest what to do from here.
If you have USB debugging disabled with OEM unlocking off there's not much you can do. That's why I usually suggest if you're going to relock your bootloader keep oem unlocking enabled so you can flash the factory image if you run into problems. this has saved me a few times.
try downloading the platform tools and usb driver and running the unlock command, what message do you get? The first command you want to run is ADB devices to make sure that your device appears in the list and the command prompt. second command to run is fastboot reboot bootloader , If your phone restarts back into bootloader then you know you have the driver and fastboot /ADB installed and working properly. then go to the Android developer page and find the proper unlock fast boot command I think there's a different one for the Pixel 2.
Alekos said:
If you have USB debugging disabled with OEM unlocking off there's not much you can do. That's why I usually suggest if you're going to relock your bootloader keep oem unlocking enabled so you can flash the factory image if you run into problems. this has saved me a few times.
try downloading the platform tools and usb driver and running the unlock command, what message do you get? The first command you want to run is ADB devices to make sure that your device appears in the list and the command prompt. second command to run is fastboot reboot bootloader , If your phone restarts back into bootloader then you know you have the driver and fastboot /ADB installed and working properly. then go to the Android developer page and find the proper unlock fast boot command I think there's a different one for the Pixel 2.
Click to expand...
Click to collapse
Hey thanks for the update man. I know I should have kept atleast oem unlocking enabled. My fault.
Now I followed your instructions and the phone only shows under fastboot devices. But when I run ADB devices it comes as blank under list of devices attached. I still tried the fastboot reboot bootloader command but the phone just restarts with the battery charging icon flashing on screen and then going back into the fastboot mode. (pic of which I attached in the original post).
Any other ideas would be appreciated, else ill just take it to a service centre.
mayankggrwl said:
Hey thanks for the update man. I know I should have nlocking enabled. My fault.
Now I followed your instructions and the phone only shows under fastboot devices. But when I run ADB devices it comes as blank under list of devices attached. I still tried the fastboot reboot bootloader command but the phone just restarts with the battery charging icon flashing on screen and then going back into the fastboot mode. (pic of which I attached in the original post).
Any other ideas would be appreciated, else ill just take it to a service centre.
Click to expand...
Click to collapse
Mine shows blank also when running the devices command.
If you can run commands like "fastboot reboot bootloader" or "fastboot reboot recovery" etc and the device restarts, then platform-tools and driver is installed. I mean make sure you have the latest versions of both or else there's no point on going any further. An older version platform-tools will cause a bunch off issues so update that for sure.
what happens when you run any of these commands when your in the bootlaoder menu (where it says Fastboot and device state: locked) (after you've updated platform-tools, check the version by typing the command " fastboot --version" - 31.0.3 is the latest version)
fastboot flashing unlock
fastboot flashing unlock_critical
fastboot oem unlock
If you can unlock your device, you can flash recovery/bootloader image and go from there. But it doesn't look good.
Alekos said:
Mine shows blank also when running the devices command.
If you can run commands like "fastboot reboot bootloader" or "fastboot reboot recovery" etc and the device restarts, then platform-tools and driver is installed. I mean make sure you have the latest versions of both or else there's no point on going any further. An older version platform-tools will cause a bunch off issues so update that for sure.
what happens when you run any of these commands when your in the bootlaoder menu (where it says Fastboot and device state: locked) (after you've updated platform-tools, check the version by typing the command " fastboot --version" - 31.0.3 is the latest version)
fastboot flashing unlock
fastboot flashing unlock_critical
fastboot oem unlock
If you can unlock your device, you can flash recovery/bootloader image and go from there. But it doesn't look good.
Click to expand...
Click to collapse
Hey man, Thanks for the update.
Unfortunately none of these commands are working and yes I have the latest platform tools and drivers installed. Attaching image of the same.
mayankggrwl said:
Hey man, Thanks for the update.
Unfortunately none of these commands are working and yes I have the latest platform tools and drivers installed. Attaching image of the same.
Click to expand...
Click to collapse
yeah, it means the oem unlocking option is disabled in developer options. damn.
can you try logging into recover menu at all so you can update both boot slots A/B with the ota using adb update option in the recovery menu.
What about running a few fastboot commands to delete userdata and even switch boot slots. that Fastboot screen will show what slot you are booted in (either a or b). try switching slots and booting then?
fastboot --set-active=a (if you are in Slot-B)
fastboot --set-active=b (if you are in Slot-A)
After swithing slots, hit restart device and as soon as you see the Google Logo, hold volume down. If you can boot into Android, enable oem unlocking as soon as you can, don't even connect to wifi or whatever. Or try accessing Recovery mode after switching slots. Main goal is to try to access recovery to update ota and/or access Android to enable oem unlocking.
have you looked on xda for other fastboot commands to try? There's a few Unbrick posts on the Pixel subs - worth a try?
edit-- sorry, I deleted some of my comment by mistake, had to rewrite it/
Alekos said:
yeah, it means the oem unlocking option is disabled in developer options. damn.
can you try logging into recover menu at all so you can update both boot slots A/B with the ota using adb update option in the recovery menu.
What about running a few fastboot commands to delete userdata and even switch boot slots. that Fastboot screen will show what slot you are booted in (either a or b). try switching slots and booting then?
fastboot --set-active=a (if you are in Slot-B)
fastboot --set-active=b (if you are in Slot-A)
After swithing slots, hit restart device and as soon as you see the Google Logo, hold volume down. If you can boot into Android, enable oem unlocking as soon as you can, don't even connect to wifi or whatever. Or try accessing Recovery mode after switching slots. Main goal is to try to access recovery to update ota and/or access Android to enable oem unlocking.
have you looked on xda for other fastboot commands to try? There's a few Unbrick posts on the Pixel subs - worth a try?
edit-- sorry, I deleted some of my comment by mistake, had to rewrite it/
Click to expand...
Click to collapse
Okay so I tried switching slots. Currently active slot is A but it again shows error that slot chage is not allowed in locked state. Well was worth a try.
I tried almost everything to get into recovery menu as per my knowledge but cant. It just restarts back into the fastboot state or goes into bootloop.
I did a bit of searching before creating this thread but didnt found anything. Ill try again and see if someone has something similar.
mayankggrwl said:
Okay so I tried switching slots. Currently active slot is A but it again shows error that slot chage is not allowed in locked state. Well was worth a try.
I tried almost everything to get into recovery menu as per my knowledge but cant. It just restarts back into the fastboot state or goes into bootloop.
I did a bit of searching before creating this thread but didnt found anything. Ill try again and see if someone has something similar.
Click to expand...
Click to collapse
this thread is interesting:
{Solved} Pixel 2 Bricked, need help.
Hey Guys. I'm new to the Pixel 2 and have found myself stuck and not sure what to do. I'm stuck at this screen and keep getting getting an error message staying "Slot Unbootable: Load Error". I am not able to get into fastboot to flash the...
forum.xda-developers.com
specifically this comment:
{Solved} Pixel 2 Bricked, need help.
Hey Guys. I'm new to the Pixel 2 and have found myself stuck and not sure what to do. I'm stuck at this screen and keep getting getting an error message staying "Slot Unbootable: Load Error". I am not able to get into fastboot to flash the...
forum.xda-developers.com
download the full factory image (not ota) and extract it, and move the radio and bootloader images into platform tools folder and try flashing? But don't think you can.
Also, maybe try installing Skipsoft and see what commands you can execute from there? https://skipsoft.net/download/unified-android-toolkit-v1-7-2/
it supports the Pixel 2.
Not sure how the op in that thread above fixed his Pixel 2 with Skipsoft tool. His Device state said Locked in his screenshot on his post.
Also try draining the battery and see if it will boot into Recovery Mode at all. And check the other Pixel threads (like Pixel 3 XL) there's a few unbrick posts there also.
edit--try these commands
fastboot erase system
fastboot erase data
fastboot erase cache
Alekos said:
this thread is interesting:
{Solved} Pixel 2 Bricked, need help.
Hey Guys. I'm new to the Pixel 2 and have found myself stuck and not sure what to do. I'm stuck at this screen and keep getting getting an error message staying "Slot Unbootable: Load Error". I am not able to get into fastboot to flash the...
forum.xda-developers.com
specifically this comment:
{Solved} Pixel 2 Bricked, need help.
Hey Guys. I'm new to the Pixel 2 and have found myself stuck and not sure what to do. I'm stuck at this screen and keep getting getting an error message staying "Slot Unbootable: Load Error". I am not able to get into fastboot to flash the...
forum.xda-developers.com
download the full factory image (not ota) and extract it, and move the radio and bootloader images into platform tools folder and try flashing? But don't think you can.
Also, maybe try installing Skipsoft and see what commands you can execute from there? https://skipsoft.net/download/unified-android-toolkit-v1-7-2/
it supports the Pixel 2.
Not sure how those users in the thread flashed the bootloader image since I didn't think you could if the device state is locked, but worth a try.
Also try draining the battery and see if it will boot into Recovery Mode at all. And check the other Pixel threads (like Pixel 3 XL) there's a few unbrick posts there also.
Click to expand...
Click to collapse
Okay great !! Thanks for these. Ill go through that thread and will see if any of the listed methods work. Will also try that software. In a rush so will try these later on and then ill update you.

Categories

Resources