[Guide]How to Fix BSOD/No Bootloader

wolfirotisha

Senior Member
Mar 2, 2011
181
34
0
Spanaway
THIS GUIDE WAS MADE WITH CWM Installed.
This post is to try and combine all the resources i used and found in one simple guide. I really hope this can get sticked so it doesnt get lost.

So after i flashed Hells-Core kernel for the N4 on My N5 i sorta screwed up my Nexus to the point that it wouldnt boot. Not even into bootloader. So unable to find anything on google i came to XDA for help. Well while waiting for a response on here my GF (who has No android knowledge about an average user.) took to google and found what i was looking for without even really Trying. The nexus 5 has a SECOND bootloader option that Alot of users dont know about. To access that second bootloader and fix the BSOD here are the steps you follow.
I AM NOT HELD RESPONSIBLE SHOULD YOU FULLY BRICK YOUR DEVICE BY DOING THESE STEPS!
1.) Plug your device into your PC or laptop (NOT required BUT it does make it easier to do the steps.)
2.) If your device is powered on but again you cant see anything hold Down+power till you hear your device eject from your Computer.
3.) As soon as you hear it eject press and hold Down+up+power. You are now in the secondary bootloader

Now for the Fun and Dangerous stuff.
1.) Open CMD prompt and direct yourself to your ADB location
2.) Type adb devices. If your device shows up here skip the next step.
2a.) If your device DOESNT show up navigate to the recovery option and load recovery. Once your in recovery proceed to the next step.
3.) in CMD prompt type adb shell. if you see # your good. if not type SU
4.) once you have root access in adb shell enter the following command: dd if="/dev/block/mmcblk0p11" of="/dev/block/mmcblk0p6" and hit enter you should see something like this
dd if="/dev/block/mmcblk0p11" of="/dev/block/mmcblk0p6"
1024+0 records in
1024+0 records out
524288 bytes (512.0KB) copied, 0.136945 seconds, 3.7MB/s
5.) after all that is done you are good to go. Reboot your device and pat yourself on the back seeing as your Soft-Bricked device and bootloader is now fixed and in working order again.

Again We at WolfRoms© are Not responsible for ANY damage that results from these steps.

Thanks*
Andriy2 and his post with the partition command:
http://forum.xda-developers.com/google-nexus-5/general/bootloader-bootloader-nexus-5-t2746343
cargobr151 for the partition list:
http://forum.xda-developers.com/google-nexus-5/general/info-partition-list-nexus-5-t2517503
And lastly grim489 for helping me out on another post i had.

Guide written by Wolf
Founder and one man dev team of WolfRoms©
 
Last edited:

bitdomo

Senior Member
Nov 3, 2011
1,542
1,240
0
28
Göd
Thanks for the guide. You are the second guy who saved his phone thanks to the secondary bl.

Tapatalk-kal küldve az én Nexus 5-el
 

bitdomo

Senior Member
Nov 3, 2011
1,542
1,240
0
28
Göd
I have one question.

3.) As soon as you hear it eject press and hold Down+up+power. You are now in the secondary bootloader
At this phone your screen is on? What do you see? Or the phone's screen remains black during the process?
 

GUGUITOMTG4

Senior Member
Oct 26, 2011
870
332
0
GuGuPlace
I have one question.



At this phone your screen is on? What do you see? Or the phone's screen remains black during the process?
During that step, your phone is still bricked and screen should be off. (if the screen is on, then this guide might not be needed for your device)
It should light up after "Now for the Fun and Dangerous stuff" step ( 4&5 )
 

bitdomo

Senior Member
Nov 3, 2011
1,542
1,240
0
28
Göd
During that step, your phone is still bricked and screen should be off. (if the screen is on, then this guide might not be needed for your device)
It should light up after "Now for the Fun and Dangerous stuff" step ( 4&5 )
I found out the screen turn ons

2.) If your device is powered on but again you cant see anything hold Down+power till you hear your device eject from your Computer.
3.) As soon as you hear it eject press and hold Down+up+power. You are now in the secondary bootloader
Otherwise how we could navigate to the recovery?

2a.) If your device DOESNT show up navigate to the recovery option and load recovery. Once your in recovery proceed to the next step
So we see the normal fastboot screen right?
 

GUGUITOMTG4

Senior Member
Oct 26, 2011
870
332
0
GuGuPlace
I found out the screen turn ons



Otherwise how we could navigate to the recovery?



So we see the normal fastboot screen right?
If you screen turns on, you could solve your issue in another manner. what happened to your phone that brought you here?
To navigate to recovery, given that the phone is on the alternate bootloader, just would need to press 2 times either vol- or vol+ and press power.
like we do normally.
 

bitdomo

Senior Member
Nov 3, 2011
1,542
1,240
0
28
Göd
If you screen turns on, you could solve your issue in another manner. what happened to your phone that brought you here?
To navigate to recovery, given that the phone is on the alternate bootloader, just would need to press 2 times either vol- or vol+ and press power.
like we do normally.
My phone is fine. I am just curious.

Tapatalk-kal küldve az én Nexus 5-el
 

Georgiazen

Senior Member
Sep 15, 2013
99
13
0
I found out the screen turn ons



Otherwise how we could navigate to the recovery?



So we see the normal fastboot screen right?
i can get into recovery but i have no zip on interal so im stuck. pc wont see device so i can transfer a rom over to the phone
 

simms22

Recognized Contributor - R.I.P
Jun 4, 2009
34,056
25,931
0
BROOKLYN!
www.androidcommunity.com
I flashed trinity kernel for the n4 onto my n5, 3 times in a row accidentally! after it not booting 3 times, I realized my mistake. I went ahead and flashed the n5 trinity kernel after, and to my surprise it booted, with everything normal. no issues after. I assumed it would've changed my partitions, but it did not.
 

bitdomo

Senior Member
Nov 3, 2011
1,542
1,240
0
28
Göd
i can get into recovery but i have no zip on interal so im stuck. pc wont see device so i can transfer a rom over to the phone
Reboot to recovery.
Connect your phone to the PC
Download usb drivers http://forum.xda-developers.com/showthread.php?t=2386956
Open device manager and update the driver for AOSP on Hammerhead device.
If you are running windows 8 or 8.1 then you have turn off the driver signature enforcement to install the driver.
Install this http://forum.xda-developers.com/showthread.php?t=2588979 skip the driver installation.
Create a new folder on the root of your C drive and name it to flash
Download a rom zip.
Rename the zip to flash.zip make sure you will not rename it to flash.zip.zip then copy it to the C:\flash folder
In recovery enable adb sideload. If you are using TWRP then it is in the ADVANCED menu.
Open CMD window and type these commands:

cd C:\flash
adb sideload flash.zip
 

Georgiazen

Senior Member
Sep 15, 2013
99
13
0
Reboot to recovery.
Connect your phone to the PC
Download usb drivers http://forum.xda-developers.com/showthread.php?t=2386956
Open device manager and update the driver for AOSP on Hammerhead device.
If you are running windows 8 or 8.1 then you have turn off the driver signature enforcement to install the driver.
Install this http://forum.xda-developers.com/showthread.php?t=2588979 skip the driver installation.
Create a new folder on the root of your C drive and name it to flash
Download a rom zip.
Rename the zip to flash.zip make sure you will not rename it to flash.zip.zip then copy it to the C:\flash folder
In recovery enable adb sideload. If you are using TWRP then it is in the ADVANCED menu.
Open CMD window and type these commands:

cd C:\flash
adb sideload flash.zip
ok but it doesnt say asop it says android device and mtp
 

Georgiazen

Senior Member
Sep 15, 2013
99
13
0
this what i see 1. android phone - composite adb devive

---------- Post added at 05:40 PM ---------- Previous post was at 05:37 PM ----------

now it says google nexus adb interface