Database Users

Sorry Guys but another A500 Bricked APX mode only

Hello,
I am another unfortunate user who has bricked his tablet. I installed Jue11 Ram Manager Plus and it asked to reboot my tab. On reboot it was bricked, flashing the android logo and not going any further. I have tried everything listed on the site to get my CPUID to no avail. have followed all instructions including trying to retrive using Ubuntu Linux, A500 Flash Tool, (which tells me it is in APX mode but returns a blank serial), NVflash gives a device not found. Any help? I am technically saavey on PC, Windows and the like, but fairly new to tablets.
A little more info, using A500 Manager it reports a500 in APX mode then acts like it is retrieving the serial but comes back blank. Nvflash reports device not found. Using Ubuntu gives errors but reports all needed packages are installed, (not a Linux Power User so could be an ID10T Error on my part).
Please, I appreciate any and all help.
hartgraves

hartgraves said:
Hello,
I am another unfortunate user who has bricked his tablet. I installed Jue11 Ram Manager Plus and it asked to reboot my tab. On reboot it was bricked, flashing the android logo and not going any further. I have tried everything listed on the site to get my CPUID to no avail. have followed all instructions including trying to retrive using Ubuntu Linux, A500 Flash Tool, (which tells me it is in APX mode but returns a blank serial), NVflash gives a device not found. Any help? I am technically saavey on PC, Windows and the like, but fairly new to tablets.
A little more info, using A500 Manager it reports a500 in APX mode then acts like it is retrieving the serial but comes back blank. Nvflash reports device not found. Using Ubuntu gives errors but reports all needed packages are installed, (not a Linux Power User so could be an ID10T Error on my part).
Please, I appreciate any and all help.
hartgraves
Click to expand...
Click to collapse
if u meant rom manager - our tab isnt supported, you'll need the patched BL before u can install a custom recovery
if nvflash is reporting device not found then check your data cable and/or that the acer usb boot recovery is installing from apx mode. You may need to manually install it by pointing it to the acer folder in program files/data depending which win OS u have...
try that and see how u get on...

dibb_nz said:
if u meant rom manager - our tab isnt supported, you'll need the patched BL before u can install a custom recovery
if nvflash is reporting device not found then check your data cable and/or that the acer usb boot recovery is installing from apx mode. You may need to manually install it by pointing it to the acer folder in program files/data depending which win OS u have...
try that and see how u get on...
Click to expand...
Click to collapse
Make sure you are using the mini usb cable and not the full size..

Try this for a possible fix
http://forum.xda-developers.com/showthread.php?t=1823583

[Q] Stuck at stage two (unlocking bootloader)

Hi guys !
I'm trying to install a custom rom on my A500 but I don't get to unlock the bootloader...
I stuck with blackthund3r tool at :
Flashing Bootloader (EBT) stage two - uploading image...
I'm on ICS OTA 4.0.3 and the bootloader is 0.03.12-ICS
I follow all the threads talking about that but did'nt worked...
I checked all the drivers but I don't get it...
somebody have a useful advice ?
Thanks !

babysugar said:
Hi guys !
I'm trying to install a custom rom on my A500 but I don't get to unlock the bootloader...
I stuck with blackthund3r tool at :
Flashing Bootloader (EBT) stage two - uploading image...
I'm on ICS OTA 4.0.3 and the bootloader is 0.03.12-ICS
I follow all the threads talking about that but did'nt worked...
I checked all the drivers but I don't get it...
somebody have a useful advice ?
Thanks !
Click to expand...
Click to collapse
couple apxFlash pictorials here:
http://forum.xda-developers.com/showpost.php?p=32905041&postcount=20
http://forum.xda-developers.com/showpost.php?p=25891744&postcount=44
You need the drivers installed
1. Acer website for the acer drivers
2.zip file attached for google/fastboot drivers
Ive attached a .jpg too, u need to have the apx device listed in hardware/printers as shown
3. with apxFlash try dumping your ".bct" when u see that window
4. you can try the afterOTA tool too...
5. if the auto tools dont work then you will need to rollback to HC using tdv4 EUU
6. have a look thru the OP of the cpuid thread for more background info on all things acer http://forum.xda-developers.com/showthread.php?p=25429111#post25429111

I've never had this much trouble before.
Ok. A little back story first. I'm not a moron, I have a myTouch 3G Sapphire 32a Fender rooted using the gold card method, LG G2x - P999 Rooted running CM10, and a SGH-T999 Stock rooted (That's a Galaxy S3 for those who don't know).
I have a friend that got an Acer Iconia a500 tablet a year ago. He's not a power user, doesn't know anything about rooting. All he did was play games on it. One day it wouldn't turn on, the screen was blank. Occasionally it would freeze at the Acer logo, but it would never boot up.
Now it's stuck in APX mod due to him pushing a bunch of buttons(idk how he got it into APX mode so don't ask), so there is absolutely no way to boot the tablet. He never turned on USB debugging, and I can't get into the tablet to turn it on because it's stuck in apx mode.
I must stress this!
I have been working on this tablet for 3 weeks now, and read countless posts about how to fix the exact problem that I'm having with this tablet, the only drawback is: step 1 is always, "Turn on USB Debugging." That is IMPOSSIBLE for me to do at this point.
Here is list of what I do know:
Hardware - Acer Iconia a500, APX Driver Version - 1.0.1.0 Released 4/1/2010 Shows as APX in Devices. Shows as Acer USB Boot-recovery driver in device manager.
Software
ADB info - Android SDK rev.20
ADB ver 1.0.29
Windows 7 64-bit completely up-to-date
Commands: adb get-state, get-serial ------- returns, unknown
Commands: adb remount, root, usb ------- returns, "error: device not found"
Command: adb devices -------- returns no value at all.
Programs used for rooting - AfterOTA 1.09, EUUS v3, blackThun3r A500 Manager
I have the CPUID, and SKB (I was somehow able to acquire those in one of my attempts to flash the stock rom)
What I don't know:
What version of Android OS is on the tablet. I'm pretty sure it has ICS, but he was deathly afraid of downloading any updates, even app updates even though I told him that all updates should be installed a.s.a.p. So there's a chance that it's still running HC.
Now here is my problem other than being stuck in APX mode. I have tried AfterOTA, it won't detect anything past Driver Installed on the Tablet information screen because USB debugging isn't enabled. So I can't use most of the functions of that program.
blackthund3r APX Flash v0.4 - Will get the tablet into the bootloader mode where it says:
Acer Iconia APX Mode in the upper right with a glowing yellow Acer logo in the center of the screen, nothing is flashing like the APX flasher says, I have reinstalled the drivers hundred of times with the same results.
Hangs at, "Flashing Bootloader (EBT) stage two - uploading image..."
EUUS v3 - Says, "Acer Iconia not detected"
(I had a screenshot posted here, but stupid forum limitations wouldn't let me. You could see what's going on if it let me post this.)
I do the reset procedure and it just goes back to the same message.
It will go into a screen on the tablet that says "Entering Acer Download Mode" Then EUUS tells me to do the reset procedure again, and this is a continuous loop that results in nothing being flashed. If I ignore that message and just continue nothing happens.
I also have a file called a500-hc.bat that runs nvflash and it gives an error that leads me to believe that a partition on the tablet is corrupted. Everyone says that EUUS v3 should fix this and flash back to original stock, but it obviously doesn't work.
Any help that I could get would be greatly appreciated. If you need any more information, just ask, and I'll do my best to get it. The tablet is (for lack of a better word) bricked, so I'm very limited on what sort of software info I can give you straight from the tab. Please Please Please help. And thank you in advance.

[Q] Nexus7 fully bricked with APX mode Only

For updating to android 4.3 , I flashed my N7.
I download the package the factory image from Google .
I entered the fastboot and do things following:
Code:
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
fastboot flash bootloader bootloader-flo-flo-03.14.img
fastboot reboot-bootloader
ping -n 5 127.0.0.1 >nul
fastboot -w update image-razor-jss15r.zip
when it come to
Code:
fastboot -w update image-razor-jss15r.zip
there is a warning about the bootloader
At this time ,bootloader seems didn't chaged , it's still grouper not flo.
I modified the android-info.txt to cheat the program and the tragedy start.
The windows remind me there is 6 unknown device. And then it fully bricked.
Now, When I turn on the N7, the screen stay blank.
APX device appear while connect to PC.
Can't enter fastboot mode ,can't enter recovery. even the screen can't be lighten.
Anyone else meet the same trouble or someone can help?
Before this, I have had try the follow tools.
The Nexus7 toolkit--won't work
tegra-android-developer-pack from nvidia website tegra developer tools --won't work
nvflash and wheelie from androidroot.mobi --can't work --(It's a rediculous project I think, If the fastboot work,why we need to flash rom via nvflash)

Sorry, but if you really flashed the files above, you have bricked your N7 completely. Probably you should have looked around and informed yourself before starting to flash files which are not compatible with the N7.
Btw. if you had used wheelie before, you would have some recovery files and you would be able to recover yourself from the brick. So it's not a ridiculous project at all.

I thought it's common sense to read, read, read and read a bit more faqs/how-tos/guides before doing anything to a device.
First of all, 'grouper' is the codename of the 1st gen N7 Wi-Fi (the 2012 model) while 'flo' is the 2nd gen N7 (2013 model), so you can't flash ones image to the other device.
Secondly, your device might be saved, but only if you still can access it with fastboot. If so, then flash the proper images for your device using a toolkit or a guide, if not, then you have a nice paperweight.

37nook said:
For updating to android 4.3 , I flashed my N7.
I download the package the factory image from Google .
I entered the fastboot and do things following:
Code:
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
fastboot flash bootloader bootloader-flo-flo-03.14.img
fastboot reboot-bootloader
ping -n 5 127.0.0.1 >nul
fastboot -w update image-razor-jss15r.zip
when it come to
Code:
fastboot -w update image-razor-jss15r.zip
there is a warning about the bootloader
At this time ,bootloader seems didn't chaged , it's still grouper not flo.
I modified the android-info.txt to cheat the program and the tragedy start.
The windows remind me there is 6 unknown device. And then it fully bricked.
Now, When I turn on the N7, the screen stay blank.
APX device appear while connect to PC.
Can't enter fastboot mode ,can't enter recovery. even the screen can't be lighten.
Anyone else meet the same trouble or someone can help?
Before this, I have had try the follow tools.
The Nexus7 toolkit--won't work
tegra-android-developer-pack from nvidia website tegra developer tools --won't work
nvflash and wheelie from androidroot.mobi --can't work --(It's a rediculous project I think, If the fastboot work,why we need to flash rom via nvflash)
Click to expand...
Click to collapse
This is a text book example of what happens when people don't read enough, and don't fully understand what they're doing. And it's not as if there aren't enough guides and how-to's here on XDA... and even on other forums!
Hi, 37nook...
You have almost certainly over-written your bootloader with a completely incompatible version designed for a different tablet (2nd gen Nexus 7)... and thus you are hardbricked. This is why you can't access fastboot mode and why your tablet defaults to APX mode when you hook it up to your PC.
And unless you had at some point run the flatline procedure BEFORE being bricked, your tablet is unrecoverable.
Regarding flatline (nvFlash) itself, it's designed, primarily as an emergency recovery measure... and not as a replacement for fastboot, as you seem to suggest in your post. It's preemptive and needs to have been executed before being 'bricked' in order to generate your own unique 'wheelie blobs', which are created on a per-device basis. Without these, nvFlash alone is useless.
It's not much comfort, I know... but I can only suggest you chalk this down to experience, and next time, with whatever tablet/phone you next end up with.... PAY ATTENTION TO WHAT YOUR DOING, AND READ EVERYTHING, and if you're still a little unsure... POST A QUESTION. Better to feel like you're asking a dumb question (which might not be so dumb), than end up with an expensive paperweight.
Rgrds,
Ged.

AndDiSa said:
Sorry, but if you really flashed the files above, you have bricked your N7 completely. Probably you should have looked around and informed yourself before starting to flash files which are not compatible with the N7.
Btw. if you had used wheelie before, you would have some recovery files and you would be able to recover yourself from the brick. So it's not a ridiculous project at all.
Click to expand...
Click to collapse
nvflash is not a good choice for one to flash his device because of higher risk.
there is too many tools available with a lower risk.
That's the reason I didn't use wheelie before.
You are right, I am a very impatient person, and now I get a lesson.

Erovia said:
I thought it's common sense to read, read, read and read a bit more faqs/how-tos/guides before doing anything to a device.
First of all, 'grouper' is the codename of the 1st gen N7 Wi-Fi (the 2012 model) while 'flo' is the 2nd gen N7 (2013 model), so you can't flash ones image to the other device.
Secondly, your device might be saved, but only if you still can access it with fastboot. If so, then flash the proper images for your device using a toolkit or a guide, if not, then you have a nice paperweight.
Click to expand...
Click to collapse
It's actually a nice paperweight now.
Thank you for your reply which tells me where I went wrong.
It's a really serious mistake, and it's also a painful story.
I can't access it with fastboot ,so said.

GedBlake said:
This is a text book example of what happens when people don't read enough, and don't fully understand what they're doing. And it's not as if there aren't enough guides and how-to's here on XDA... and even on other forums!
Hi, 37nook...
You have almost certainly over-written your bootloader with a completely incompatible version designed for a different tablet (2nd gen Nexus 7)... and thus you are hardbricked. This is why you can't access fastboot mode and why your tablet defaults to APX mode when you hook it up to your PC.
And unless you had at some point run thev flatline procedure BEFORE being bricked, your tablet is unrecoverable.
Regarding flatline (nvFlash) itself, it's designed, primarily as an emergency recovery measure... and not as a replacement for fastboot, as you seem to suggest in your post. It's preemptive and needs to have been executed before being 'bricked' in order to generate your own unique 'wheelie blobs', which are created on a per-device basis. Without these, nvFlash alone is useless.
It's not much comfort, I know... but I can only suggest you chalk this down to experience, and next time, with whatever tablet/phone you next end up with.... PAY ATTENTION TO WHAT YOUR DOING, AND READ EVERYTHING, and if you're still a little unsure... POST A QUESTION. Better to feel like you're asking a dumb question (which might not be so dumb), than end up with an expensive paperweight.
Rgrds,
Ged.
Click to expand...
Click to collapse
Thank you for your suggestion
There is still a question
I actually run these code twice.
First time a got a warning. because of the file content of android-info.txt in image-razor-jss15r.zip
the code
Code:
fastboot reboot-bootloader
must have been executed, and the bootloader is still grouper.
means the code
Code:
fastboot flash bootloader bootloader-flo-flo-03.14_img
didn't work
And the second time
Code:
fastboot -w update image-razor-jss15r.zip
led to the tragedy because I modified the android-info_txt in image-razor-jss15r_zip
What happened in updating image-razor-jss15r_zip ?

37nook said:
Thank you for your suggestion
There is still a question
I actually run these code twice.
First time a got a warning. because of the file content of android-info.txt in image-razor-jss15r.zip
the code
Code:
fastboot reboot-bootloader
must have been executed, and the bootloader is still grouper.
means the code
Code:
fastboot flash bootloader bootloader-flo-flo-03.14_img
didn't work
And the second time
Code:
fastboot -w update image-razor-jss15r.zip
led to the tragedy because I modified the android-info_txt in image-razor-jss15r_zip
What happened in updating image-razor-jss15r_zip ?
Click to expand...
Click to collapse
That is indeed puzzling... if after flashing the incorrect bootloader, and the bootloader is still showing as 'grouper' AFTER fastboot reboot-bootloader, then I'm puzzled.
I'm also further puzzled, that the rest of the flash went ahead... seemingly successfully. I know on my 'grouper', when fastboot flashing back to factory stock... if the bootloader isn't the correct version (for that version of factory stock), the flash aborts with the message 'Incorrect bootloader version'. I'm not sufficiently knowledgable though, concerning the specific details of the second gen Nexus 7 and it's associated stock factory images, to make further comment.
It's just possible (though unlikely), you might just be stuck in APX mode, instead of having a corrupted bootloader.
I assume you've tried all the usual button press combos... detailed here.
If you can boot into the bootloader, your Nexus 7 is recoverable... though I'm not optimistic.
Rgrds,
Ged.

OP, did you ever have any luck?

zamboniman87 said:
OP, did you ever have any luck?
Click to expand...
Click to collapse
+1

Hard Bricked Nexus 7 2012 Wifi NVFlash tool reports "uknown device found"
I just need to know and maybe need help modifying the adb/fb/apx android_apxusb.inf file more specifically targeted toward the nexus 7 for windows xp, my tablet does not boot into fastboot mode so fastboot.exe and adb.exe commands for reviving my tablet is out of the question.The nvflash tool in apx mode would be my only hope as the tablet stays with black screen and does not even show battery icon of it charging.I have been searching day and night for a solution and nothing.I have tried all the button combinations for the weird amount of seconds blah blah and nothing, i have tried everything, believe me...nvflash would be my only hope.I do not have any backed up blob.bin files so I can not use wheelie.exe I even tried someone elses blob.bin but no It is because the uid is unique I understand, I even opened the blob.bin file with notepad and supplied my CSSN code and the first part worked but the next part stumped me.... the rcm version part.I have the Secure Boot Key generated by supplying the CSSN of device in blackthunders tool so I want to run NVFlash.exe --bl bootloader-grouper-4.18.img --sbk 0x10117000 0x761CD506 0x7EE73604 0xBE055203 --sync.I have tried the universal naked drivers 0.73 but "ASUS Transformer Prime APX Interface" shows up in device manager after modifying the android_apxusb.inf file and supplying it the "Hardware device id" from device mamager by right clicking selecting properties etc;.Could there be an entry I could put in the android_apxusb.inf file for nexus 7 that nvflash.exe would not report "Uknown Device Found" and would recognize my nexus 7?.I did get the "ASUS Transformer Prime APX Interface" succesfully installed but nvflash is whining about the device being unknown.Furthermore I would like to make clear that the were no exclamation yellow triangles or anything and the device reported as working properly in device manager.I dearly would appreciate some insight into this.This all happpened on a personal quest to flash another kernel.Sequentially I use "TWRP" to wipe everything that they suggest you wipe" Davlik cache", "data", and two others, but after I wiped them I noticed that those were recommended to be wiped for flashing another ROM.I read just a little more down in the webpage that for flashing a kernel I only needed to wipe Davlik Cache and Data.I restarted the tablet and bam! bootloop.The android colorful spheres and no further.To recover from this I used Skip's Nexus v1.8.0 used the Soft-Bricked Bootloop option on the middle right of the tool's GUI hit the Flash Stock+Unroot buttton and let it run.I would let it run then it would take to long and appear to not progress so I stopped it and re ran it.This happened a few times but I finallly got it to complete, and after the toolkit rebooted my device i saw the "GOOGLE" Text when device booted.I waited for about 2 minutes and I saw it was not getting anywhere so I powered the Nexus 7 device off.
Next thing I did was press power button and nothing.I have tried everyhing, I assume that the solution would be nvflash and a cutomized .INF file pin point targted specifically for the nexus 7 2012 WiFi only tablet.Please help me, if there is no special APXInterface entrie i can edit the android_apxusb.inf file to help nvflash detect my device then it is game over for me.LOL I have seen many people post with a similar and identical poblem that have given up but I'm determned.LOL

Begining to think that it has to do with the nvflash.exe version is why.
After downloading another nvflash.exe with it's acompanying .dll's I found a nvflash program that executed and did not display the familiar "unknown device found" error message.I did it with the "NVidia USB Recovery mode for mobile" driver, nothing fancy.I was surprised that that nvflash version at least ran.The nvflash version i used is the nvflashtf201which is the Tegra3 ICS nvflash.I run that version of nvflash and I at least get this message in the command prompt on Windows XP sp3 after issuing a "harmless" nvflash --sync command.
Nvflash v1.13.87205 started
chip uid from BR is: 0x0000000000000000015d483bd137ec12
rcm version 0X4
Command send failed (usb write failed)
I googled around and some people say that it is because the bootloader is locked, and other say it is because the SBK version is 2 or higher or somthing if im not mistaken.As far as I know is that before I got the gadget hard bricked the boot loader was unlocked.I have even gone as far as to reformating my other computer and installing Unity Linux just to get my device accepting the nvflash commands I have configured the "rules.d" files to what "lsusb" shows I have tried different versions of nvflash like from upload sites and even from nvidias site even tried a newer cable (the newer cable works better but the old one still works)., I downloaded the "Cardhu" "Jelly Bean" stuff from the Tegra Android Development Pack 2.0r6 ( not 2.0r7 because the Tegra Android Development Pack 2.0r7 gives me an md5 hash blah blah error and would not install). The Tegra Android Development Pack 2.0r6 comes with nvflash.The reason I downloaded it was just to get nvflash.I do not have any blob files backed up, I only have the SBK from the chip uid of my device thus would like to try and get a hold of an nvflash in which the "--sbk" command parameter has not been deprecated.I understand that maybe i might not get lucky as the the newer nvflash programs might all have the "--sbk" parameter neutered as well as a few more command parameters.So does anyone know if there is a nvflash version that has the -"--sbk" command paramete support so that I can test and verify if the failed error message above if because I did not supply the program a Secure Boot Key or am I wrong about thinking I need to supply nvflash with a Secure Boot Key in this newer version given the program has a recent algorithm given the program found my devices chip uid as shown in the comman line output above? If thers nothing I can do then can some one comfirm.If there is another nvflash binary that is Tegra3 ICS and has the "--sbk" parameter then point me to where I can find it, or pm me. Thanks

I am almost giving up.
I have been trying to run the tools to check the SBK version.I have read and understand that the reason that I get that usb write error is because of 1.) a locked bootloader. 2.) the SBK version. and the other reasons I am not familiar with.I do not know how to unock the bootloader from APX mode(If that's possible at all.)I did have the bootloader unlocked before running the Nexus 7 toolkit v1.8.0.The option that I ran before my tablet got hosed was the option in the toolkit "Back to Stock" "Current status:" which I had the Soft-Bricked/Bootloop" option selected under the "Flash Stock + Unroot" button which I pressed. After the latter process was finished it rebooted my tablet did it's magic(as I could not see a better way to recover my tablet from the anterior soft brick event which happened before I was led to this process by trying to flash Faux123 kernel) my tablet got stuck at the "Google" with white text and all black screen.The tablet took to long to boot (more then a minute )so I shut it down with the power button.I went to power it on by pressing power button and WALA! hard bricked i'm hosed.The tablet does not boot into fastboot or anything. I cannot use ADB or fastboot either, just the complicated APX mode.I wish tablets were reformatable like computers.But back to the reason for the post;I ran the sbkchek tool and I get a "Segmentation Fault" error.I see many indiviuals in this forum had success running the tool.I am on a 32bit pc with Unity Linux OS.I tried a live cd with Puppy Linux and same error.I tried running the SBKDetect tool that downloaded these forums and the Live CD gives me the "cannot execute binary file" even though it is flagged executable or whatever(I'm not familiar with linux pardon the pun)".I am gonna try to run the tool on Unity Linux and see if I have success but I doubt it will work.Does anyone know if the 2012's Nexus 7 SBK version is SBKv1 or SBKv2?If there are different versions im not sure.I am guessing that the newer than 2012 versions of Nexus 7 have a different SBK version then the earlier ones.I have a question.Could the process of finishing the Nexus 7 Toolkit's "Flash Stock + Unroot" process have changed my bootloader to a locked bootloader and that's why i am getting the RCM Version 0x4 Cannot (Write to USB) error? If it is then what good is it to me if Icannot unlock the bootloader from APX mode? It's a dawg gone shame becuase I have the SBK.Can some one give me some insight or confused dog the right way.lol?

funkyo0o said:
I have been trying to run the tools to check the SBK version.I have read and understand that the reason that I get that usb write error is because of 1.) a locked bootloader. 2.) the SBK version. and the other reasons I am not familiar with.I do not know how to unock the bootloader from APX mode(If that's possible at all.)I did have the bootloader unlocked before running the Nexus 7 toolkit v1.8.0.The option that I ran before my tablet got hosed was the option in the toolkit "Back to Stock" "Current status:" which I had the Soft-Bricked/Bootloop" option selected under the "Flash Stock + Unroot" button which I pressed. After the latter process was finished it rebooted my tablet did it's magic(as I could not see a better way to recover my tablet from the anterior soft brick event which happened before I was led to this process by trying to flash Faux123 kernel) my tablet got stuck at the "Google" with white text and all black screen.The tablet took to long to boot (more then a minute )so I shut it down with the power button.I went to power it on by pressing power button and WALA! hard bricked i'm hosed.The tablet does not boot into fastboot or anything. I cannot use ADB or fastboot either, just the complicated APX mode.I wish tablets were reformatable like computers.But back to the reason for the post;I ran the sbkchek tool and I get a "Segmentation Fault" error.I see many indiviuals in this forum had success running the tool.I am on a 32bit pc with Unity Linux OS.I tried a live cd with Puppy Linux and same error.I tried running the SBKDetect tool that downloaded these forums and the Live CD gives me the "cannot execute binary file" even though it is flagged executable or whatever(I'm not familiar with linux pardon the pun)".I am gonna try to run the tool on Unity Linux and see if I have success but I doubt it will work.Does anyone know if the 2012's Nexus 7 SBK version is SBKv1 or SBKv2?If there are different versions im not sure.I am guessing that the newer than 2012 versions of Nexus 7 have a different SBK version then the earlier ones.I have a question.Could the process of finishing the Nexus 7 Toolkit's "Flash Stock + Unroot" process have changed my bootloader to a locked bootloader and that's why i am getting the RCM Version 0x4 Cannot (Write to USB) error? If it is then what good is it to me if Icannot unlock the bootloader from APX mode? It's a dawg gone shame becuase I have the SBK.Can some one give me some insight or confused dog the right way.lol?
Click to expand...
Click to collapse
I'm in the exact same situation. Nexus 7 2012 hard bricked, shows up in windows with APX driver. Nothing on the screen (stays dark). I have another blob.bin file from my Nexus 7 (bricked one is a friends), but I don't know how to go about modifying blob.bin, if it's even possible, or even finding out this device's SBK. Wish there was a way.

Blob.bin files are encrypted I think.
mzanette said:
I'm in the exact same situation. Nexus 7 2012 hard bricked, shows up in windows with APX driver. Nothing on the screen (stays dark). I have another blob.bin file from my Nexus 7 (bricked one is a friends), but I don't know how to go about modifying blob.bin, if it's even possible, or even finding out this device's SBK. Wish there was a way.
Click to expand...
Click to collapse
Right.I have tried modifying the blob file but I think it would not work.I have not studied nor am I ever gonna reverse engineer a closed source program, nor am I a cryptographer, but nvflash uses some bit strength of encryption to genrate that blob.Since it is encrypted and it would be defeating the purpose of an encryption algorithm existing at all(unless it is a "Proof Of Concept" cracked cypher like WEP) to always generate the same "blob" of "pseudo random data"; and aside from defeating the purpose dumb if it did;Then my guess would be that the probabilty is low to none.But you sure can use the "CSSN" number or "UID" on the box your device came in or a sticker inside your device, then get the "SBCalcv1.1.zip" tool (you should be able to easily find if you google it.There is a link in these forums) and follow the intuitive graphical user interface and it will calculate and display your SBK in a 0x00000000 0x00000000 0x00000000 0x00000000 "format".But getting the SBK was easy what is not goin for me is getting the tools "sbkcheck" and "sbkDetect" (These 2 tools are for Linux only I think) to run without the errors and show me what version.I am not sure if I am wasting my time with the probability my device is SBKv2.If i am not mistaken SBKv2 is the brain child of the manufacturers genius idea of locking the devices down more.So what I understand if I am not mistaken (someone correct me if i am wrong) is that SBKv1 can be used with nvflash but not SBKv1.And having a locked boot loader would make the nvflash tool cough up the dreaded "RCM Version 0x4 Command send failed (USB write failed)" error or whatever the error was lol. Locking the devices down more would increase there sales with the surefire fact someone is bound to brick their device.Instead of investing efforts to facilitate the device's recovery (which probably would be trivial) in case of a human mistake they just seem to want to DRM hardware.If you paid for the darn thing you should have the right to fix or repair the dawg gone thing,it would not hurt anyone but all the patents and intellectual property, registered trademark crap would not allow it.

Someone else blob.bin file might not work but..
I am pretty sure for the reasons i have explained above a blob.bin file will not work which is not unique to the indiviual device it was generated or created on but if you feel that lucky and with all due respect did not understand why then here it is.Good Luck don't say I didn't warn you it would not work.

current solution
mzanette said:
I'm in the exact same situation. Nexus 7 2012 hard bricked, shows up in windows with APX driver. Nothing on the screen (stays dark). I have another blob.bin file from my Nexus 7 (bricked one is a friends), but I don't know how to go about modifying blob.bin, if it's even possible, or even finding out this device's SBK. Wish there was a way.
Click to expand...
Click to collapse
Guys i think there isn't any solution right now, need to wait for Google or some developer to make a proper toolkit to solve that.
till that the only solution i think is to change the Motherboard; that's available on ebay,
but for me i did nothing with my tab, it was updated it self through OTA to 4.4.2.
just working fine but then after a day it got stuck i restarted it,(it took more time then normal to restart) and dead
but what i am confuse of is, if i buy a motherboard and this problem appear again
i am waiting to know what is the mess that take it to APX mode; only after that i will order a motherboard.

Is it still under warranty? You could send it in and have them possibly fix it under warranty. I tried to update to KitKat via the normal method and something went amiss and I went into APX mode as well.
I informed Asus about it and they had me RMA it and it was fixed, free of charge since it was still under warranty (less than year old).
Never hurts to try.

faizleaves said:
Guys i think there isn't any solution right now, need to wait for Google or some developer to make a proper toolkit to solve that.
till that the only solution i think is to change the Motherboard; that's available on ebay,
but for me i did nothing with my tab, it was updated it self through OTA to 4.4.2.
just working fine but then after a day it got stuck i restarted it,(it took more time then normal to restart) and dead
but what i am confuse of is, if i buy a motherboard and this problem appear again
i am waiting to know what is the mess that take it to APX mode; only after that i will order a motherboard.
Click to expand...
Click to collapse
I think I'm the newest member of the hard-bricked Nexus 7 club. Not a happy place to be.
Same thing happened to me last night. Watching YouTube, screen froze, audio kept playing. Went to hard restart, and the Nexus 7 was stuck in a boot loop. Went to boot into fastboot (vol - and power) and it would come up in fastboot, but would not boot to recovery. Restarted a couple times, and now, it's stone dead - won't boot to fastboot, or white Google screen. Nothing. It will connect as an APX device, and I've installed generic drivers. I'm trying to communicate through adb or fastboot, but nothing.
I can't imagine what happened. It was accidentally dropped from about 4 feet earlier in the week - maybe something came loose?
This sucks.

My Nexus 7 (V1) is on APX Mode i have installed the Universal Naked Driver 0.73. Gives it every Chance to bring it back to Android???

[Q] Bricked Advent Vega Tegra note 7 no usb debugging

My son has this tegra note which he dropped and it is stuck on the the "TEGRA NOTE" boot screen i can get the bootloader up and have tried factory reset and side loading a update with sd card but non of these have made any difference. I have watched all the un bricking vids and help files and tried everything i can but nothing works as the usb debugging was never enabled, is there any way i can re-install the complete OS without this enabled ?

icdeamons said:
My son has this tegra note which he dropped and it is stuck on the the "TEGRA NOTE" boot screen i can get the bootloader up and have tried factory reset and side loading a update with sd card but non of these have made any difference. I have watched all the un bricking vids and help files and tried everything i can but nothing works as the usb debugging was never enabled, is there any way i can re-install the complete OS without this enabled ?
Click to expand...
Click to collapse
Hi mate as you can get to the bootloader all is not lost.
Download the following files
The Restore to Factory via nvflash: http://www.adventcomputers.co.uk/download-select/nojs/3255
Recovery Guide: http://www.adventcomputers.co.uk/download-select/nojs/3260
Follow the guide to the letter apart from if you have the drivers already installed for ADB and Fastboot you also have the driver installed for APX.
This should get you booting again hopefully.

I have this problem but im on completely untouched device. No root no recovery all official roms.
What can i do?

LightInDark said:
I have this problem but im on completely untouched device. No root no recovery all official roms.
What can i do?
Click to expand...
Click to collapse
Do the above my friend that is your only hope.
Doing it via NvFlash doesn't require root as your flashing via a special mode called APX.

my problem is I don't think my computer even picks it up because the USB doesn't kick in until after the TEGRA NOTEtm screen as far as I am aware.

Follow the PDF it will place the device into apx mode for flashing via nvflash. The guide shows how to install drivers to flashing the device.
Apx mode is to recover from complete bricks or issues like the op. If you can't boot in to android give apx flashing a go. Trust me on this one. I have already done this myself.
Sent from my TegraNote-P1640 using XDA Premium 4 mobile app

icdeamons said:
My son has this tegra note which he dropped and it is stuck on the the "TEGRA NOTE" boot screen i can get the bootloader up and have tried factory reset and side loading a update with sd card but non of these have made any difference. I have watched all the un bricking vids and help files and tried everything i can but nothing works as the usb debugging was never enabled, is there any way i can re-install the complete OS without this enabled ?
Click to expand...
Click to collapse
When i root my slate 7 extreme i never knew that i need to enable the usb debugging mode but somehow i am able to get root access by unlocking the boot loader and installed the cwm(which is usefull to install stock/custom rom)..heck i only know that option was actually available and hidden by default after rooting the device.
the step i followed is from this link:
http://forum.xda-developers.com/showthread.php?t=2663449&page=2
and watching all rootjunky videos at YouTube might be helpful too..

You can unlock the bootloader, flash recovery the root that way but the aio scripts use adb and fastboot not just fastboot on its own.
Sent from my TegraNote-P1640 using XDA Premium 4 mobile app

hacktrix2006 said:
Hi mate as you can get to the bootloader all is not lost.
Download the following files
The Restore to Factory via nvflash: http://www.adventcomputers.co.uk/download-select/nojs/3255
Recovery Guide: http://www.adventcomputers.co.uk/download-select/nojs/3260
Follow the guide to the letter apart from if you have the drivers already installed for ADB and Fastboot you also have the driver installed for APX.
This should get you booting again hopefully.
Click to expand...
Click to collapse
Hello.
Does this also work for other brands of Tegra Note, like Homecare?
Cheers,
Jaro

Doesn't work, I tried this and it just gets stuck on the Advent Vega logo instead of the TEGRA Note logo.

Ok have you tried going into the bootloader and getting into recovery?
If you get a android with a red triangle just press Vol-Up and power then clear the cache then do a factory reset and then reboot and see what happens.
If after the reboot your still in the same boats as you was before the apx flash then i think it could be due to a messed up partition somewhere (bad block on emmc) i am still looking for other ways of recovering the devices that have bricked but Nvidia has decided not to reply to my messages (Thats the mobile team support for ya!)

I retried the flash and it got to the spinning nvidia logo for a few secs, then it froze and the screen messed up and jumped around pixelly. Then shut off and started getting incredibly hot and wouldn't stop. Seems like bad manufacturing to me.
Sent from my LG-G2 using XDA Free mobile app

It sure looks like that as my first on did this as well. Seems its a hit and miss. My first one died due to the battery getting way to hot and killing the tablet the second one i stopped at 4.3 and i haven't had any issues. So not sure whats causing the issue out right.
Take its out of warrenty?

I hope advent will replace it even while in another country, I got it while under warranty but I'm currently in Belgium. It didn't even last 1 month before dying.

If no luck you could try Nvidia directly via their support

Posting an update. Whenever I try the fix from the advent flash it finishes, reboots and gets stuck at tegra note again.

LightInDark said:
Posting an update. Whenever I try the fix from the advent flash it finishes, reboots and gets stuck at tegra note again.
Click to expand...
Click to collapse
Hi mate, OK how many times have you flashed via the APX ???
Can you get back into fastboot?
If you can try a fastboot -w and then try booting again.

Well I decided to try a full dead battery then left it to full charge)(charging screen still shows fine) then run the flash and now it still hangs, not sure how to enter fastboot with this tablet.
Sent from my LG-G2 using XDA Free mobile app

Press and hold Volume Up + Power Button till a black menu comes up then go to fastboot protocol.
Then issue the fastboot command!
---------- Post added at 03:18 AM ---------- Previous post was at 02:37 AM ----------
If doing the fastboot -w hasn't fixed it the last thing you can try is the following
Download this: https://mega.co.nz/#!3R1GTAxY!ZeQRTsZdP0xVHP8fl4ImsEQK6Wc0br-8BeeWWuKhd94
Extract this to where fastboot is then type the following.
fastboot flash staging blob
fastboot flash dtb tegra114-tegratab.dtb
then reboot and see what happens!

Just in case anyone still has these issues I'm going to post how I found a way to resolve them. I had all the problems mentioned in the previous posts and more besides. The inability to apply OTA updates, the device would freeze after 5 seconds of inactivity, endless boot loops, failed recovery partitions etc etc etc.
I tried a butt load of different solutions but none worked for me. What did work is described below. Others have already mentioned that Advent has a stock rom recovery utility, however, even after flashing that my problems still remained. So I downloaded the Advent stock recovery util and documentation and modified it slightly to the latest Android release for the Tegra Note 7.
Do as follows:
1 - Go here and download both the Advent Vega Tegra Note Factory Image (4.3) util and the documentation.
2 - Extract the Advent Factory Image zip file (as described in the documentation) somewhere on your pc.
3 - Inside the extracted folder you'll see a bunch of files. The three files we're interested in are the "recovery.img", "system.img" and "boot.img". Select all three and delete them.
4 - Now download the Tegra Super Tool utility here. At the time of this post the latest version is 2.5.
5 - Extract the downloaded Supertool to a new folder on your pc.
6 - Inside the extracted folder there are another bunch of files. Again, we're only interested in three of them. You're going to rename three of the files and use them to replace the three files you deleted earlier. At present their names are "4.4.2-2.5recovery.img", "4.4.2-2.5boot.img" and "4.4.2-2.5system.img.ext4". The filenames will obviously change as time goes by, but a little common sense goes a long way at this stage. So "4.4.2-2.5recovery.img" is renamed to "recovery.img", " 4.4.2-2.5boot.img" is renamed to "boot.img" and "4.4.2-2.5system.img.ext4" is renamed to "system.img". Once you've renamed them, copy them into the folder for the Advent Vega Tegra Note Factory Image which you extracted in step 2.
7 - Now go and read the documentation for the Advent Vega Tegra Note Factory Image util. Just take your time and follow it to the letter. It'll tell you how to put your Tegra Note 7 into it's APX mode, install windows drivers for it and begin the recovery of your device. It's mostly an automated procedure and fairly simple to follow as long as you follow the documentation.
This method brought my Tegra Note 7 back when it had several of the problems mentioned earlier in this thread, all at the same time.
Hope it helps someone.

[GUIDE] [UNBRICK] Unbrick Oneplus One

*** I've been receiving many requests and PMs from members asking to help them unbrick their device. Please note that I no longer own this device (and even if I did I would not purposely brick it just to reproduce your problem), therefore I am unable to help out beyond this tutorial. ***
Hello,
First some background and credits:
There are a few ways to brick a phone. Sometimes it's lack of experience, sometimes it's an accidental thing, sometimes there just isn't an explanation for what went wrong... (share your experience here, if you wish). For me, I owned my OPO for about 4 hours before things went wrong. First thing I did was I rooted it and installed TWRP. After creating a nandroid backup of the stock image I installed my favorite custom ROM and restored all my apps with TiBu. Everything was great and configured just the way I wanted it. I then wiped my old phone (Nexus 4), installed a new ROM and got it all ready for my wife. She was so excited to get rid of her GNex and move up to the N4. But then, for whatever reason, I opened an app on my OPO that I used to manage, download, and install kernels with. It came up with "there is a new kernel update!" and I instinctively clicked on "Install". 10 seconds later my phone was bricked. Nothing came on the screen, no fastboot, no recovery, nothing to boot to, no way to send data to and from it. The second the screen went black and the phone became lifeless I got that wretched feeling in my gut as I realized I just flashed a N4 kernel on my new OPO. Restoring the kernel management app with TiBu made it act like it's still running on my old phone, and in my excitement I didn't take a second to think things through...
I received a bit of consolation when a quick XDA search revealed that I am not the only dumbass to brick his phone this very way. I joined forces with some pretty smart and desperate people and tried different things, all described in the following thread: http://forum.xda-developers.com/oneplus-one/help/wrong-kernel-black-screen-fastboot-adb-t2835696. Unfortunately it took us what seemed like many long weeks to figure it all out. Well, in the end a solution was found and I documented it in the the following post: http://forum.xda-developers.com/showpost.php?p=55024864&postcount=136.
This was a few months ago, but I recently noticed many people continue to search for these directions and have problems finding them hidden among many pages and other threads, so I've decided to put this stand alone thread with these, now updated, directions.
Let me get one more thing straight, for the record. I did not find the way to unbrick the OPO. In fact I wasn't even the very first one to do it. It was a collective effort of few people who tried many different approaches and ideas, and I eventually documented these steps for others to follow. Being said, the following people deserve credit as well: @os_man, @rezor92, @Mnt-XDA. If I am forgetting other significant names and efforts, I apologize.
***CAUTION***
The following instructions are for hardware bricked devices ONLY and will not work on soft bricked devices. To determine whether your device is soft or hard bricked, click the button below:
Hardware brick
A hardware bricked OPO has nothing but a black screen (nothing ever comes on the screen, not even a boot logo), it might vibrate when a power button is pressed and held for 20 seconds, has no Recovery partition, no adb mode, and no fastboot partition. The device might be detected in Linux and you might be able to even send commands to it. In Windows, the bricked OPO should be detected as QHSUSB_BULK USB. You might have a bricked OPO as a result of flashing a kernel meant for a different device (or a ROM meant for another device that included a kernel), tinkering with the boot logo or bootloader, or your attempt of unlocking the bootloader resulted in corrupting the boot partition.
Software brick
Please do not attempt to use these directions if your phone is soft bricked. A software bricked OPO is one that might be stuck in a bootloop, but has a working bootloader, recovery partition, fastboot, or adb. If you press the power button and images appear on the screen and you are able to enter fastboot mode (Power + VolUP) or recovery (Power + VolDOWN) then your device is soft bricked. This thread does not encompass soft brick recovery, the instructions below do not apply and will not work on these phones. Consult other threads for help on soft bricked devices.
If based on the above explanation of differences between soft and hard bricks you determined your device is hard bricked, here's what you will need to do...
1:
Download Color.zip from (mirror needed).
After downloading, unzip the archive on your computer.
2:
Next, you need proper Windows drivers. There are architectural differences between Windows XP and Windows 7/8, so follow the directions below that pertain to you. One quick note about the drivers: the installation and process is very simple and straightforward on Windows XP (I also tested successfully on Windows 2003), but proves to be quite a challenge when running on Windows 7 or 8. Over and over people report issues when attempting the unbrick procedure on Windows 7/8, some have more luck than others. Being said, if you have access to a Windows XP computer, I highly recommend that you use that. If you have no choice but to use a Windows 7 or 8 computer and have problems, please share them here and read others' experiences.
So first, by now you probably tried a few different things to fix your phone and you've already installed some drivers, including Qualcomm USB drivers for 9006 and 9008. My best advice is to uninstall the drivers you tried so far and use the ones listed below. Go to Device Manager, right click on the bricked USB device (QHSUSB_BULK or Qualcomm HS-USB QDLoader 9008) and go to Properties, click on Driver, then select Uninstall. Check the box to remove driver files, if prompted. Then:
2a:
Windows XP users:
You are in luck, driver installation is straightforward. Go to the extracted Color.zip folder and find Driver.iso. Extract Driver.iso. Inside the extracted folder find Setup.exe. Run Setup.exe to install the drivers. The installer is Chinese, but all you need to do is click through the prompts.
2b:
Windows 7 and Windows 8:
These operating systems block unsigned driver installations by default. Follow these steps (thanks @nag4pl for testing these):
Download and extract these Qualcomm 2012 drivers: (mirror needed).
Connect your bricked phone and let Windows do its thing.
Now something very essential you need to do here is to execute two commands to allow you to install unsigned drivers for QHUSB_BULK. Click on Start Menu > Type cmd.exe > Right Click and Run as Administrator.
In the CMD window type in the following commands (hit enter after each):
Code:
bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS
Code:
bcdedit.exe -set TESTSIGNING ON
After both the commands should run successfully, restart your computer.
You can now proceed to install unsigned drivers from the file you downloaded. Open Device Manager, you should be seeing ugly yellow warning under other devices for QHUSB_BULK. Right click on the name and select Update Driver Software > Browse my Computer for driver software. For driver software location provide the path where you have extracted Qualcomm 2012 drivers you downloaded and make sure 'Include Subfolders' is checked. Proceed through all the installation prompts ignoring any warnings.
3:
Once you have the drivers straightened out, connect your bricked phone to the computer and start it up by holding VolUp + Power to about 10 seconds, and let the computer do its thing. Don't install drivers if they are not installed by itself. Instead launch Msm8974DownloadTool.exe as Administrator (right click on Msm8974DownloadTool.exe and select "Run as administrator") from the extracted Color.zip archive. It will scan all the COM ports and find the phone. That's the one line that looks different in the list. The list is just a list of your com ports and devices. If you unplug the phone and move it to another port, it will show your bricked phone on a different line.
Clicking on "Enum" just rescans the busses. Clicking the big square button in upper right corner scans the phone and reports what's good and what's not. It takes a minute for the scan to finish.
If you don't see your phone in the list of com devices, try unplugging/plugging in your phone a couple times, and rebooting it with VolUP + Power (hold 10 seconds). You will see it in Device Manager as well.
Once you see the phone in the list, click Start. You should see the programs start writing different files to the phone. Each time it writes a file you'll see a progress bar. Once you see this process happening, smile, you know you will be good to go... After all files are written, the com line with your device will turn green. You're good, unplug and reboot your phone. It will boot to ColorOS, the Chinese OS that comes on OPO.
4:
Optional Steps:
Your phone is no longer bricked. You now have a few options to get back to stock. The easiest way is to use a toolkit from http://forum.xda-developers.com/oneplus-one/development/oneplus-one-toolkit-manudroid19-gui-t2807418, or you can flash an image manually by following directions from: http://forum.xda-developers.com/oneplus-one/general/guide-return-opo-to-100-stock-t2826541. Download the proper image zip and after extracting it, run the following commands in fastboot mode:
Code:
fastboot flash boot boot.img
fastboot flash userdata userdata.img
fastboot flash system system.img
fastboot flash recovery recovery.img
fastboot flash cache cache.img
fastboot flash modem NON-HLOS.bin
fastboot flash sbl1 sbl1.mbn
fastboot flash dbi sdi.mbn
fastboot flash aboot emmc_appsboot.mbn
fastboot flash rpm rpm.mbn
fastboot flash tz tz.mbn
fastboot flash LOGO logo.bin
Make sure you have the proper image. I accidentally installed the 16GB version on my 64GB OPO first time and obviously didn't get 64GB of space.
That's about it. I think if people are still having problems then it's likely due to drivers, or Windows 7/8 issue.
Good luck! Share your experience here and let me know if I can improve this thread.
Please click the Thanks button if you found the above guide useful.

Added to OnePlus One index thread:
[INDEX] OnePlus One Resources Compilation Roll-Up
Transmitted via Bacon

did this and it finally worked but still i have unknown baseband and no imei.........flashed coloros using the msm tool and rom goes into a bootloop......tried all the ways with no luck....even flashed the persist.img......still no luck.......my last hope is claiming warranty and act like a noob in service center.......will they get to know taht i unlocked the bootloader?

mysterio619 said:
did this and it finally worked but still i have unknown baseband and no imei.........flashed coloros using the msm tool and rom goes into a bootloop......tried all the ways with no luck....even flashed the persist.img......still no luck.......my last hope is claiming warranty and act like a noob in service center.......will they get to know taht i unlocked the bootloader?
Click to expand...
Click to collapse
You should be able to boot to fastboot now. From there flash the cm11s image. I believe that "fastboot flash sbl1 sbl1.mbn" will fix the imei issue.
Also, unlocking bootloader does not void your warranty. Not with OPO.

netbuzz said:
You should be able to boot to fastboot now. From there flash the cm11s image. I believe that "fastboot flash sbl1 sbl1.mbn" will fix the imei issue.
Also, unlocking bootloader does not void your warranty. Not with OPO.
Click to expand...
Click to collapse
Tried it......still no imei

mysterio619 said:
Tried it......still no imei
Click to expand...
Click to collapse
Just to give one last try, flash color os modded zip from relic, i used 2.0.43 purezip and it gave me back my imei. Had the same issue as you last week. Be sure to flash TWRP 2.8.4.1 first and then flash color os.

Legit method.
Worked for me 2 weeks ago!

unbrick oneplus one, oppo 7
Hi there my friend, i had many works about unbricking solutions, a few of you know that, i have much easier and faster ways now, tested many times before i decided to share with you, it will be a long topic ( and my brain is messed up to sum them up clearly), as soon i can think clearly again, i start to write them, till then,
greetings from Istanbul to all geeks around thw world.
Ps: including restoring imei's if they got lost during this process.
Ps2: just a quick info abou imei, if your imei is "invalid" , this means your modem.bin (NON-HLOS.bin, baseband) is not inadaptable with your rom, just try flashing the right modem ( from fastboot), your imei will be back.
Ps3 : This will lead us to unbrick many Snapdragon's out there , not only oneplus one's or oppo's.

I had to use this tutorial some days ago.
There is also a modified .zip where the tool from OPO flashed CM11s instead of ColorOS.
http://forum.xda-developers.com/oneplus-one/general/tool-oneplusrecovery-tool-v1-0-restore-t2991851
I had many driver problems and i had to use this driver from qualcomm so my win7 could recognize the phone.
Tutorial to install the driver:
1. Open your device manager (Start - right click on computer - properties - devices manager)
2. Press on power + vol up for like 10 sec until you see a device showing up (called QHSUSB_BULK)
3. Right click on this devices and click on "Update Driver Software" -> "Browse my computer for driver software" -> locate the Qualcomm 2012\fre\Windows7 8 or vista folder depending on your setup. Update the driver.

michaeldepotter said:
I had to use this tutorial some days ago.
There is also a modified .zip where the tool from OPO flashed CM11s instead of ColorOS.
http://forum.xda-developers.com/oneplus-one/general/tool-oneplusrecovery-tool-v1-0-restore-t2991851
I had many driver problems and i had to use this driver from qualcomm so my win7 could recognize the phone.
Tutorial to install the driver:
1. Open your device manager (Start - right click on computer - properties - devices manager)
2. Press on power + vol up for like 10 sec until you see a device showing up (called QHSUSB_BULK)
3. Right click on this devices and click on "Update Driver Software" -> "Browse my computer for driver software" -> locate the Qualcomm 2012\fre\Windows7 8 or vista folder depending on your setup. Update the driver.
Click to expand...
Click to collapse
Hi, Dropbox link for drivers seems to be wrong.. could you please update correct one.. I am in very much need of it! pls!!

nag4pl said:
Hi, Dropbox link for drivers seems to be wrong.. could you please update correct one.. I am in very much need of it! pls!!
Click to expand...
Click to collapse
Sorry. Here is the link:
https://www.dropbox.com/s/vgujdut93m341qm/Qualcomm 2012.rar?dl=0
Sent from my A0001 using XDA Free mobile app

michaeldepotter said:
Sorry. Here is the link:
https://www.dropbox.com/s/vgujdut93m341qm/Qualcomm 2012.rar?dl=0
Sent from my A0001 using XDA Free mobile app
Click to expand...
Click to collapse
Thank you.. Troubleshooting my phone now..

may i ?
http://www.androidbrick.com/?wpdmdl=2599

Back from Brick!!
First of all Thanks a lot to @netbuzz(for such a life saver guide on unbricking 1+1) and @michaeldepotter for providing link to download appropriate drivers.
Here is some good news by my findings and can be a quick help for those who do not have or can't get XP. You can use Windows 7 itself for the process mentioned by @netbuzz
All you need to do is:
1. Download drivers from link provided by @michaeldepotter : https://www.dropbox.com/s/vgujdut93m341qm/Qualcomm 2012.rar?dl=0
2. Extract to some folder under C: or whichever drive you prefer.
3. Connect your bricked phone after pressing Volume Up and Power key (make sure phone vibrates once)
4. Now that QHUSB_BULK should be detected and Windows will eventually try to download drivers from update, which you can skip and close the window.
Now something very essential you need to do here is to execute some commands so that you will be able to install unsigned drivers for QHUSB_BULK.
4a. Click On Start Menu > Type cmd.exe > Right Click and Run as Administrator (make sure you are running cmd as admin)
4b. Now type below command
bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS
>hit Enter
bcdedit.exe -set TESTSIGNING ON
> hit Enter again
4c. Both the commands should run successfully, then restart your computer.
These steps are to disable driver sign verification. You must proceed to next steps only after above steps executed successfully.
After machine booted back to desktop
5. Now Open Device Manager by Start > Run > type "devmgmt.msc" and hit enter
6. You should be seeing ugly yellow warning under other devices for QHUSB_BULK.
7. Right click on the same > Update Driver Software > Browse my Computer for driver software
8. Now under driver software location, provide the path where you have extracted drivers which you downloaded from step 1. For me it was:
"C:\Users\Arjun\Downloads\Qualcomm 2012\fre\Windows7" - Remember to provide path only till windows 7 and make sure 'Include Subfolders' is checked.
9. Click next, and it should install driver for QHUSB_BULK. Click on Install Driver if you get any warnings.
Now your driver set-up for QHUSB_BULK in Windows 7 is complete and now you may proceed with the steps to run Msm8974DownloadTool as provided by netbuzz.
I have attached the screenshots for the same just for confirmation.
SuccessfullDriver - showing successful installation of driver
FlashInProgress - showing tool flashing the system image
FlashSuccess - showing green row indicating successful flash.
Once again, thanks a lot for all the guide and help. Hope this quick guide helps some one in need!!

nag4pl said:
First of all Thanks a lot to @netbuzz(for such a life saver guide on unbricking 1+1) and @michaeldepotter for providing link to download appropriate drivers.
Here is some good news by my findings and can be a quick help for those who do not have or can't get XP. You can use Windows 7 itself for the process mentioned by @netbuzz
All you need to do is:
1. Download drivers from link provided by @michaeldepotter : https://www.dropbox.com/s/vgujdut93m341qm/Qualcomm 2012.rar?dl=0
2. Extract to some folder under C: or whichever drive you prefer.
3. Connect your bricked phone after pressing Volume Up and Power key (make sure phone vibrates once)
4. Now that QHUSB_BULK should be detected and Windows will eventually try to download drivers from update, which you can skip and close the window.
Now something very essential you need to do here is to execute some commands so that you will be able to install unsigned drivers for QHUSB_BULK.
4a. Click On Start Menu > Type cmd.exe > Right Click and Run as Administrator (make sure you are running cmd as admin)
4b. Now type below command
bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS
>hit Enter
bcdedit.exe -set TESTSIGNING ON
> hit Enter again
4c. Both the commands should run successfully, then restart your computer.
These steps are to disable driver sign verification. You must proceed to next steps only after above steps executed successfully.
After machine booted back to desktop
5. Now Open Device Manager by Start > Run > type "devmgmt.msc" and hit enter
6. You should be seeing ugly yellow warning under other devices for QHUSB_BULK.
7. Right click on the same > Update Driver Software > Browse my Computer for driver software
8. Now under driver software location, provide the path where you have extracted drivers which you downloaded from step 1. For me it was:
"C:\Users\Arjun\Downloads\Qualcomm 2012\fre\Windows7" - Remember to provide path only till windows 7 and make sure 'Include Subfolders' is checked.
9. Click next, and it should install driver for QHUSB_BULK. Click on Install Driver if you get any warnings.
Now your driver set-up for QHUSB_BULK in Windows 7 is complete and now you may proceed with the steps to run Msm8974DownloadTool as provided by netbuzz.
I have attached the screenshots for the same just for confirmation.
SuccessfullDriver - showing successful installation of driver
FlashInProgress - showing tool flashing the system image
FlashSuccess - showing green row indicating successful flash.
Once again, thanks a lot for all the guide and help. Hope this quick guide helps some one in need!!
Click to expand...
Click to collapse
Thanks for this Win7/8 workaround. I'll be adding your info to the OP.

Finally Unbricked mine...Drivers resolved on Win 7
netbuzz said:
Second note about drivers is that I had the worst time trying to get things to work on my Windows 7 computers. Both Windows 7 and 8 block unsigned driver installations by default. I've tried overwriting these settings in Windows and spent half a day messing with it, and I never got things to work properly. At first all looked good to go, but then latter steps were failing. You might have a better luck getting drivers to work on Windows 7 or 8 (I've heard some people did it), but if you have access to a Windows XP or 2003 machine, try it first, it should save you some major headache.
Once you have the drivers straightened out, connect your bricked phone to the computer and start it up by holding VolUp + Power to about 10 seconds, and let the computer do its thing. Don't install drivers if they are not installed by itself. Instead launch Msm8974DownloadTool.exe from the extracted Color.zip archive. It will scan all the COM ports and find the phone. That's the one line that looks different in the list. The list is just a list of your com ports and devices. If you unplug the phone and move it to another port, it will show your bricked phone on a different line.
Click to expand...
Click to collapse
I have used the override tool for certificates: DSEO - Driver signature enforcement overrider
to allow the unsigned drivers to be used and it worked like charm on windows 7 64 bit.
Also, I used the additional Qualcomm 2012 drivers and not sure which one might got picked in that mess :cyclops::cyclops:
Thanks!!
:good::good::angel::angel:

nevermind!

Well I managed to hardbrick my phone. I am download the ColorOS file from Mega at the moment. It's downloading at 30KB/s and will take around 6.5 hours. Is there any other source to download it from ? Thanks !
Also, about the driver ...
While I wait on the colorOS to download I want to clarify one more thing about the driver.
According to the screenshot of @nag4pl the driver should show as Qualcomm USB diagnostic 9006, while for me it shows as Qualcomm HS-USB QDloader 9008. Is this going to be an issue ?
This is what I did. I uninstalled the default driver that came with windows 7. After that it failed to install the driver provided in this forum because it kept saying that device descriptor failed. I rebooted the phone several times and changed the USB ports and eventually windows detected it but AGAIN with the windows driver even though I had checked the option to delete the original driver while uninstalling it. Through the update driver option I managed to force it to install the unsigned driver.
Now I can see both the drivers under the update drivers option. Interestingly the default driver is a version ahead of the unsigned driver provided in this forum.
My only concern is that I see a different driver name compared to the one posted by @nag4pl

Thanks! Very useful for me!

That shouldn't be a problem. Not sure if that is specific to region, mine is India version phone.. Can some one clarify on this?