Hi everyone, this is the first time i write here. I've been dealing with this problem for some hours now and it seems i can't get out of it alone.
Today i decided to wipe the N5 and install Lollipop. I downloaded the factory image, wiped everything from TWRP (i know it was unnecessary...), started to flash all the stuff from ADB...but i got some error. I tried again, and got the same error again. So i started to mess around...a guide told me to give adb the following commands:
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
I think it was after this that ADB stopped recognizing my phone, and now i can't even get to the recovery. I tried uninstalling and reinstalling sdk and google usb drivers plenty of times, i even tried some alternative solutions like LGUnitedMobileDriver and Universal Naked Driver.
I can see that windows sees the device (which now only works in fastboot mode) from Device Manager, and that ADB is working (if i give the command "adb version" it responds correctly), but there's no way to make adb recognize the Nexus. If i just install the drivers, Device Manager shows it as "Android Bootloader Interface". A guide i found says to manually select "Android ADB Interface" or "Android Composite ADB Interface", and so i have done (i have to untick the "show compatible hardware" box in the installation process to see this options), but no luck.
Does anybody have any idea how to solve this? What may i have missed?
You need fastboot commands to flash images in recovery. ADB will only recognize the device when you have android running
Try "fastboot devices" command without quotes. It should detect your phone and return a serial number. If so, flash the images (see the sticky on how to return to stock and follow the method 2)
Adb and fastboot are two different things. ASB works in android or recovery but is not used for flashing. Fastboot works in bootloader.
I wrote an "adb and fastboot" thread. Use it uninstall your Google drivers and install naked.
Omg, it was that simple! Thank you guys, you were so fast :good:
If you downloaded the factory image, it seems like you just need to flash that with fastboot.
1). Reboot into the boot loader by holding down volume when powering on.
2). Type fastboot devices to make sure your phone is recognized.
3). Untar the image and execute the flash-all.bat script. This will completely factory reset your phone, including stock recovery. Note this will also delete your internal storage files.
If you don't like this approach, you can also flash the recovery partition with fastboot flash recovery recovery.img, where recovery.img is the TWRP image you downloaded. Once you boot into recovery you can restore a nandroid or whatever from there. Good luck.
Sent from my Nexus 5 using Tapatalk
Related
Hello.
Earlier today I wanted to try a new JB rom to replace ICS so I transfered it into SD card and tried to reboot into recovery.
Instead of getting to recovery, I got stuck in fastboot mode, so I'm assuming recovery has been damaged.
After a whole afternoon of researching this forum I tried for several times this tutorial in order to install a recovery and afterwards a ROM (http://forum.xda-developers.com/showthread.php?t=1088046) and similar ones in both Mac OS X and Windows 7 (tried both USB 2.0 and USB 3.0 so its not a problem from USB) and I didn't succeed at all.
When I am using Windows 7, when I use "fastboot erase recovery", I keep receiving this message "waiting device". If I write "fastboot devices", I don't get results.
When using Mac OS X, I can get via command line to the folder "platform-tools" where fastboot is located but if I write "fastboot erase recovery" or something, it says "command not found". I've read it could be because I have to set fastboot as an environmental variable, but I having trouble setting it (Mac OS Lion).
Thank you so much for reading. Please help me!!! Any clues would be really appreciated!
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UPDATE: I finally managed to communicate with the device.
I used the following commands from this tutorial http://androidforums.com/optimus-m-all-things-root/382525-guide-get-out-fastboot-mode-2.html
fastboot erase boot
fastboot erase recovery
fastboot erase system
fastboot flash recovery
The problem is, now I'm stuck at LG Logo, can't access fastboot... Please help, I think it's even worse now.
boot rom, pull out battery and boot normal, it does or not? if it does use terminal emulator or adb push to install custom recovery, adb will work in fastboot if you had checked android debugging
http://forum.xda-developers.com/showthread.php?t=1007244
http://forum.xda-developers.com/showthread.php?t=1146566
grigtm said:
boot rom, pull out battery and boot normal, it does or not? if it does use terminal emulator or adb push to install custom recovery, adb will work in fastboot if you had checked android debugging
http://forum.xda-developers.com/showthread.php?t=1007244
http://forum.xda-developers.com/showthread.php?t=1146566
Click to expand...
Click to collapse
I don't understand what you mean by boot rom. Every time I turn on the phone, (normal or as POWER+HOME+VOL DOWN) it goes into fastboot. When I pull out the battery, and power again it goes again into fastboot...
techdani said:
I don't understand what you mean by boot rom. Every time I turn on the phone, (normal or as POWER+HOME+VOL DOWN) it goes into fastboot. When I pull out the battery, and power again it goes again into fastboot...
Click to expand...
Click to collapse
ok, read here http://forum.xda-developers.com/showthread.php?t=1088046 do exactly what says in this thread
hey guys i have a question.. i made a total n00b mistake and now i am not sure what to do..
I have a htc one s
-i rooted the phone and put twrp 2.8 the newest one then i tried to load a custom rom.. i read somewhere on line that you did not need s off to do this so i tried and now everytime the phone boots it loads the htc screen but goes to a black screen which is kind of dim .. anyway my bootloader is unlocked its version 2.15 and i can get back in to my recovery and mount it i tried several roms but none work.. i was wondering if someone here has a stock rom or something that can get my phone to boot in to a os.. i have tried using fastboot to try and s off but everywhere i read it says u need debugging on my drivers are installed correctly but when u do adb devices it shows empty space.. ive tried many drivers even the google generic i cannot get it to work for the life of me... any help will be appriciated
cheers
Sam
Well let's take it easy. There were some things you've missed when reading so that's why you run into problems.
First thing you missed is that YOU MUST FLASH THE KERNEL IN FASTBOOT if you're S-On. That is EVERYTIME you flash a ROM.
Second, when you're in fastboot, you won't have "ADB devices" command working, you'll have to use "fastboot devices" command instead, ADB does not work while in fastboot.
What you'll have to do is like this:
1. Take any ROM you'd like to flash, place it on your sdcard (while you're in recovery you can mount sdcard to be accessible from pc)
2. Extract from the rom and save it on your pc (in the same folder where adb/fastboot commands are, usually /android-sdk/platform-tools) the "boot.img" file that's in the root of the ROM zip. That'll be called generic "the kernel".
3. Flash the ROM in recovery
4. Reboot to bootloader then while still connected to pc via USB, select fastboot mode. On your screen the "fastboot USB" will be shown.
5. Check if fastboot drivers are installed and fastboot commands are working by issuing "fastboot devices" command. If it'll not return your device then check if drivers are installed properly and you are not using an USB 3.0 port on windows 8.1 (were reported some issues with this configuration).
6. Having fastboot working, open command prompt in the location where fastboot is (and where you have saved the boot.img file) and issue the command: "fastboot flash boot boot.img"
7. Reboot
Now your new ROM should boot and work. Pay attention to choose the right ROM for your hboot and don't forget to do these steps EVERYTIME you're flashing a ROM.
If you're still looking for a stock ROM to flash, there's a thread with all RUUs linked, choose the one for your carrier or model type and run that one but I guess you won't need that
Good luck
Sent from nowhere over the air...
First I'll give credit where it is due. From two threads on this site is where I got help with this issue:
I followed THIS guys steps for manually erasing and got the recovery images and lots of other useful information from HERE. Thank you guys very much!
OK, so, hopefully I can help someone with my little story as well. I was having issues with apps and programs crashing on me with lollipop and the new marshmallow update. The tablet just wasn't working properly and moving slow. I even had the SD card holding all my apps and larger files so I didn't overload the internal storage. So, I decided I wanted to flash back to factory/stock recovery and go from there. I did this using THIS method. I flashed via the "flash-all.bat" file (the command in fastboot is the same as the file name). I should note that there was one instance that failed during the install (I did try it again and got the same failure). Said something about “did you mean you wanted to flash this partition” or something, then showed it failed. After flashing I hit continue on the bootloader screen of the tablet and it said it was "cold booting." After about 5 minutes or so it started to boot but never made it past the NVidia screen. I tried wiping the phone with factory reset, wiping the cache, etc. and then re-flashing the recovery (again with the .bat file). I tried flashing TWRP but it didn't install apparently, because it still went to factory recovery. I even re-locked and then unlocked my bootloader to see if that would set everything straight. Nothing seemed to work. I knew I would eventually find a solution though so I kept looking. Stumbled on some other people that had the same issues but no solution (hope those people got it figured out). So here's what I did after some more research:
First, if you're in this situation and you did factory reset to try and resolve the problem, you may feel like you can no longer communicate with the device via fastboot/adb, but as long as you have the usb drive and your SDK tools installed (I used CodeWorks for Android all-in-one program) that shouldn't be a problem. You'll just have to be in the bootloader on the tablet.
-If for some reason you deleted or uninstalled your drivers and tools you'll have to download them again and then, the computer should still be able to communicate with the tablet. In the device manager under portable devices it will still show up as Module something or other. So the computer still sees the device but doesn't fully recognize it yet. Don't worry, this should still work! Just make sure you that fastboot is seeing the device by inputting "fastboot devices" in the command window and a 14 digit serial number should pop up. If it just says "list of devices" or there's nothing then you wont be communicating with the tablet.
Your device should be connected to your computer and started in bootloader mode. On your computer you should have the command prompt for adb/fastboot open. I just go to the folder where the .exe files are located and hold shift and right click in the white space of the folder, then select "open command window here."
From here follow the erase steps: stolen from manigault! :highfive:
fastboot erase system
fastboot erase userdata
fastboot erase boot
fastboot erase recovery
fastboot erase cache
Then flash your recovery MANUALLY:
fastboot flash recovery {dir}/recovery.img
fastboot flash boot {dir}/boot.img
fastboot flash system {dir}/system.img
fastboot flash userdata {dir}/userdata.img
fastboot flash staging {dir}/blob
fastboot flash dtb {dir}/tegra124-tn8-p1761-1270-a04-e-battery.dtb
You can download whatever recovery version you wish. I downloaded 2.2.2 because that's what my device came with out of the box on Christmas 2014. It will more then likely be a .zip file. To make this whole process a little easier simply extract the files in the .zip file where the adb.exe and fastboot.exe files are located (folder should be named platform-tools) and you can completely eliminate typing the whole directory before the file name. ***After your done flashing everything you can go back and delete those files if you want. Just double check that you're deleting the right files by looking at the original zip file. Not sure if it makes a difference but I deleted them anyway.
For example the commands in fastboot will look like this exactly :
(after extracting recovery files into platform-tools folder)
fastboot flash recovery recovery.img
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash userdata userdata.img
fastboot flash staging blob
fastboot flash dtb tegra124-tn8-p1761-1270-a04-e-battery.dtb
Note: Do NOT use the flash-all.bat command as this doesn't seem to work for this situation. Do it manually like shown above. And let each individual process complete before attempting to input another command.
After this step I didn't select continue on the bootloader. You can either select reboot or simply input "fastboot reboot" into the command window. It may take about 5 minutes to start installing everything but just be patient, it should start. Sometimes with these things you have to do things twice before it works. If for some reason it doesn't work the first time then start from the beginning and try it again. It took two times for me, but that's because I installed system.img twice and was getting double screen. Newb error... and I was a bit inebriated last night when I did this.
Hope this helps someone!
Thanks again to manigault and MidgetMob!
NVIDIA download files HERE!
i think i done the same thing
but the problem i now have is i cnt get tablet into fastboot on pc. i can load fastboot on tablet with power and volume down , but the tablet only shows as MTP device in device manager. i have downloaded drivers from nvidia and no matter what i try i cant install them i have been through all instructions but scince it went to mtp device i cant get device showing in adb. The only way i can get device showing in adb on pc ist to select apply update from adb ! but none of these commands listed in your post will work because its in sideload. is there anyway i cn reset , flash custom rom ect bu using commands while device is in adb sideload.
all i get is now send the package you want to apply to the device with "adb sideload <filename>".....
if you could shed any light on this it would be much appreciated , thanks , lester
did you update official android 6.0 before? then, not working stock recovery, stock boot...
If you can enter bootloader mode, download unofficial twrp 3.0.0.0 (here http://forum.xda-developers.com/shield-tablet/development/wip-twrp-2-8-0-1-unofficial-t2877117) and flash it.
i have a working boot.img file on marshmallow if you want.. please reply.
Sorry for the late response! I have no clue how you got into sideload??? Are you talking about through the recovery on your device? You're not able to get adb/ fastboot to recognize the device, right? It doesn't matter how you get the tablet into the bootloader. Whenever you have the phone in the bootloader then you'll use the fastboot command to "talk to" the device; i.e. "fastboot devices" without the quotes. That command should show your device if it shows as an MTP device whenever you open your "device manager" in windows. That's the same exact situation I was in. Download the codeworks from nvidia like I linked above. Hopefully then you should be able to recognize your device through the bootloader. If not DM me and I'll try to help you.
I'm having the exact problem as Lester. Tablet boots into bootloader but won't connect to computer. So I go into recovery mode and nothing works except apply update from adb. Which brings up the side load message that Lester quoted. And bootloader is showing "device=locked". I am attempting to fix this tablet for a friend that messed it up trying to flash a custom rom. Problem is he had no idea what he was doing and I'm not exactly sure what he did. I do however have a lot of experience with rooted android devices and flashing so any help would be GREATLY APPRECIATED!
---------- Post added at 05:59 PM ---------- Previous post was at 05:55 PM ----------
Also, I've already tried flashing stock rom back onto the tablet by applying update from sd card function in the recovery but when I try to do that the tablet for some reason can't mount the sd card.
rom fiend said:
Tablet boots into bootloader but won't connect to computer.
Click to expand...
Click to collapse
If you've got the device in bootloader then you need to use fastboot, not adb. Try the command 'fastboot devices' and see if the device id is listed. If so then grab a factory image, unzip it and use fastboot to flash the .img files using the commands 'fastboot flash system system.img'. Just make sure to match the partition names to the files.
Hello i have similar issue except when i try flash something i get this error ''remote: file write failed''
and i have to reboot into fastboot to get it flashing fully
but even though i managed to flash everything by rebooting when i boot system nothing shows up, i can just see the back light coming on and turning off after a while
Please help
Hey folks,
i have a problem with my shieldtablet. The fastboot doesn't work properly. I cannot load anything via "fastboot flash blablabla.img". Minimal ADB and Fastboot just shows "waiting for device" and if i check the devices via "fastboot devices" is just shows nothing but the normal command prompt.
Then i did a mistake and flashed the twrp 3 version with an older one, so i am unable to enter the recovery-mode. If i chose Recovery Mode via bootloader (or if i restart the tablet into recovery mode) it has a short bootloop and then after some trials it starts normal into Blisspop.
How could i flash this without the fastboot? Is there any trick i could use?
The tablet is unlocked. I had several custom-roms installed. Currently Blisspop 6.4 without playstore.
That looks like your PC is not seeing your tablet. Boot into fastboot mode, connect it to your PC and look in Windows device manager for the device.
Thanks a lot! ADB worked fine on Win10. Last time I flashed the recovery was on my old Win7-System. It seems, that the Upgrade deleted just the fastboot drivers.
One last question: is it normal, that if i chose the fastboot protocoll entry on the bootloader, that it restarts the bootloader?
Yes, that's normal. The menu entry is redundant because when you see it you are in fastboot mode already.
Hi,'
I think I disabled google app on my nexus 5 (stock android) and since then my phone is stuck in boot loop. (My phone does not go past logo of marshmallow rolls or message saying starting apps 10 of 10). I have very important data that is not yet backed up and I need them to be recovered.
From various threads, I did following in recovery mode
1. Wipe cache option under recovery menu - as it was mentioned, that it would not delete any user data on my sdcard. (No help, still stuck with boot loop)
2. In recovery mode - there was an option to mount phone memory and I did that. My phone shows a message at the bottom of the screen that it is successfully mounted. But I am not familiar how to proceed further or to recover data from my phone.
My phone is running stock android and I think I have not disabled USB debugging. I am not familiar about ADB, but can follow your guidelines and execute them. When I connect my phone to windows laptop, I see my laptop trying to install the MTP device driver, but fails saying unable to find the driver.
I need to recover my data and Any help is greatly appreciated.
Is your bootloader unlocked? I'm guessing not.
Sent from my Nexus 5X using XDA Free mobile app
If the bootloader is unlocked, you could flash twrp and then mount the data partition from twrp. If the bootloader is not unlocked, you could try pulling the data from the phone using adb commands. Was debugging enabled in the rom?
I have not unlocked my boot loader. Is there a guide to use adb with stock android?
Only if you enabled debugging in developer options.
Today, I installed 15sec ADB installer and booted my device in to recovery mode by pressing power and volume keys.
Then under recovery menu there was an option called - Mount / System. I selected it by pressing power key and from ADB ran adb devices.
No devices was listed, when I ran ADB devices.
But I saw another option in my phone recovery screen - Apply update from ADB.
I got a message in phone - "Now send the pacakge you want to apply to the device with adb sideload filename".
Now, when I execute ADB devices in my PC cmd prompt, I see my device with its serial number.
then I tried to use ADB Pull /sdcard/ to recover files from PC command prompt. But I got a message - saying error closed.
Am I doing the right things? Can you guys guide me to recover files from this point.
My bootloader version is HHZ20h. Product - Hammerhead.
I noticed from below link a user has had luck with sideloading a launcher. Has anyone here tried it ? will it affect my data on phone?
https://code.google.com/p/android/issues/detail?id=64773#c22
Any guide to sideload google search app in recovery mode?
Have you considered side loading the OTA from Google? https://developers.google.com/android/nexus/ota Directions are on the site.
When you get to this point
(But I saw another option in my phone recovery screen - Apply update from ADB.
I got a message in phone - "Now send the package you want to apply to the device with adb sideload filename".), you send the ota zip. (Adb sideload <name of zip> ). You have to make sure the zip file is in the folder with adb files.
Sent from my Nexus 9 using Tapatalk
I tried to install OTA update and did the reboot. But it did not help.
Can anyone provide me a launcher that I can sideload in recovery mode? Reading from various threads, I think my phone is in this state because I disabled the google app, which is also the launcher.
Thank you
Try to flash system image without userdata wipe and wiping only cache
Sent from my fx-82MS CAF using Tapatalk
santi1993 said:
Try to flash system image without userdata wipe and wiping only cache
Sent from my fx-82MS CAF using Tapatalk
Click to expand...
Click to collapse
How to perform this flash without wiping my user data? Any guide for it?
Download the stock image from Google that matches the rom currently installed on the phone, extract system.img, boot phone into fastboot mode, and type fastboot flash system system.img at the command prompt, and reboot.
audit13 said:
Download the stock image from Google that matches the rom currently installed on the phone, extract system.img, boot phone into fastboot mode, and type fastboot flash system system.img at the command prompt, and reboot.
Click to expand...
Click to collapse
Let me try it. so far I have been able to execute only adb sideload commands, after choosing Apply update from ADB.
Let me try this - fastboot flash system system.img.
smartey said:
Let me try it. so far I have been able to execute only adb sideload commands, after choosing Apply update from ADB.
Let me try this - fastboot flash system system.img.
Click to expand...
Click to collapse
Boot ur phone in fastboot mode (From power off to vol down + power), then connect it to the pc and install latest_google_drivers for nexus devices, ull need to manually install them, after that ur fastboot will recognize ur device.
From that type fastboot devices, if u see ur device connected u simply need to get into the commands that the other user gave to you, i u are lucky ur device will boot.
if u had unlocked bootloader the thing was easy as installing twrp 3.0.2.0 and backup all ur data via MTP