Almost certianly not of much use these days other than for reference if you have an old Nexus 5 with a currently locked bootloader.
Earlier today I found out about Android M being officially released for Nexus devices as of today. Considering that I had just recently activated my Nexus 5 and was not even running Android 5.1 I decided to give it a go. There aren’t a lot of custom roms for 6.0, and I’ve always liked running stock anyway.
Also as a word of caution this guide has a Linux system in mind, and I highly suggest even a Ubuntu flash drive for this as installing drivers for these phones is a total pain on Windows.
If you’re looking for just Android 6 and don’t care about Root access and or Tethering then you might as well wait for the OTA.
sudo dnf install android-toolson Fedora
sudo apt-get install android-platform-toolson Ubuntu
I absolutely cannot stress this enough, if you have not done so already back up every single file
on your phone, especially if you have not unlocked the boot loader. If you unlock the boot loader already
the phone will erase all data on the phone including the
Power off the phone, hold the volume down and power at the same time. You should see a boot loader screen come up.
Once your phone is in the boot loader menu plug it in and run the following command:
user@host:~/$ fastboot oem unlock
If you have fastboot this process is actually quite simple. Do be warned that this will take some time. I also strongly encourage you to make sure that your phone boots properly and has cellular service after this is complete
user@host:~/Downloads$ tar xfz hammerhead-mra58k-factory-52364034.tgz user@host:~/Downloads$ cd hammerhead-mra58k user@host:~/Downloads/hammerhead-mra58k$ ./flash-all.sh # Now is where you go and make yourself some coffee
In order to root our phone and flash a custom kernel we’re going to need to install a custom recovery. Now that you’re booting into Android 6 go ahead and shutdown the phone. Hold down the volume down and the power button to get back to the boot loader menu. This time there won’t be a lot of waiting as we’re only installing a recovery.
user@host:~/Downloads$ fastboot flash recovery twrp-hammerhead.img
Now once this is done do not reboot your device, simply unplug your Ethernet cable and
hit the volume up/down to select
reboot recovery and then tap the power button.
This will boot you into TWRP, it will pop up and ask you about modifying the file system. Go ahead and tell it that modifying the file system is fine. But don’t root your device from the recovery menus. Only do it by flashing a zip
Now that you’re in the recovery, you should be able to use either ADB to transfer the zip files over to your phone. I prefer the side load method, that way I don’t actually have to copy a zip to the phone and worry about managing zip files in two locations.
Go into the advanced menu in the recovery and select
ADB Sideload Flashing this file will probably
bring up a pretty technical installer. The options have safe defaults, just know what you’re doing
if you tweak any of the settings.
user@host:~/Downloads$ adb sideload ElementalX-N5-6.00.zip
The phone will probably reboot after installing the kernel. This is fine, just hold down the volume down and the power buttons until the phone shuts off. At that time release the power button. ( But not the volume down ) This should bring you back into the boot loader menu. Use this to get back into the recovery.
Once you’re back into the recovery go ahead and go to the advanced menu and
ADB Sideload once more,
this time be sure to check on the wipe cache and wipe dalvik cache buttons.
user@host:~/Downloads$ adb sideload permissive.zip
Once this is done you’re going to go and flash the SuperSU zip file you downloaded earlier. If you don’t have the permissive mode flashed you’re not going to be able to boot into android.
Go ahead and reboot the phone ( System ) from the recovery menu. The first boot might take a bit of time ( ~6 minutes on my phone ) #### Unlock tethering ( Optional ) - - - Although carriers want to charge extra for tethering and limit how you can use it. This is not the way it used to be. I argue that carriers should provide you with a data service and not try to micro-manage and track your usage of it.
user@host:~/Downloads$ adb sideload SuperSU.zip
user@host:~/$ adb shell android$ su root# echo "net.tethering.noprovisioning=true" >> /system/build.prop root# content insert --uri content://settings/global --bind name:s:tether_dun_required --bind value:i:0 root# reboot