3 Aug 2015

Install android lollipop based Cyanogenmod custom rom on Htc desire 816 a5

Htc desire 816 is one of first device to have a snapdragon 400 processor.It is initially launched with android kitkat and is yet to receive lollipop update.Its a beautiful device from htc with 5.5 inch screen with 720p hd display.Even though lollipop is not yet out completely you can still install it on this device with the help of cyanogenmod custom rom.

Device specific code name for htc desire 816 is "a5" and you should not get confuse between model number and device code.Also this device comes in dual sims too and they have device code names as "a5dwg" and "a5dug".This rom is specific to single variant only but you can still flash this on dual sim variant of desire 816 but you will face some problems for sure.

If you have this device and don't know how to update it to latest version of android then this guide is for you.We will help you to you to unlock your bootloader, install a custom recovery and finally install cyanogenmod in three steps.You have to follow these steps carefully so that you don't encounter any problems.

Flashing a custom on your android smartphone is very risky process.If you have bricked it then there is not chance of it getting it back to normal working state.Though the chances are very low to brick it we still hold no responsibility for any sought of damage caused.

Cyanogenmod custom rom for htc desire 816 a5:

Install Cyanogenmod custom on Htc desire 816 a5
Install Cyanogenmod custom on Htc desire 816 a5
About cyanogenmod custom rom:
Before flashing this you read some information about this cm 12.0 rom for desire 816,so that you can have an idea of this one offers to you.Cyanogenmod is one of the best custom roms available in android development ecosystem.They support lot of devices.This is based on android open source project with lot of added features.IT uses android 5.1.1 lollipop as base for now and will be updated to later versions of android when available.
cyanogenmod htc desire 816 custom roms
cyanogenmod custom rom
Though desire 816 is officially supported by cyanogenmod we still don't have cm 12.1 and you have to wait for some more time.Till then you have to completely rely on cm 12.0 only.
Features of Cm 12.0:
  • Trebuchet: This is the default launcher that comes with cyanogenmod. But if you flash full gapps then you might loose this as a default launcher.It doesn't have too many features like nova or other launchers but its simple, fast and does the job want it meant for.
  • Theme engine: Theme engine is from the cyanogenmod custom rom which basically changes the look user interface from lock screen  to ring tones all the way up to boot animations.The speciality of the theme engine is the ability to choose individual elements of every theme you have installed.So you like the ring tons and wallpapers of one theme and icons of other theme then you can have them at a time.Just open the theme chooser and you will understand how to do it.
    theme engine htc desire 816 custom roms
  • Status bar Tweaks:Status bar has lot of tweaks which include a brightness slider.Slide in status bar to adjust brightness of the screen.Double tap on status bar to sleep device to sleep but you dont have knock on feature.
  • Performance control:A default CPU manager app to control frequencies and governors . You can adjust cpu frequencies and also set them on boot too.
  • Software Updates: Cyanogenmod is usually available in three types one is nightlies which gets updated with new features every night and are quite stable for daily usage.second one is the snapchat which is monthly build version which will be stable version and other one is the release candidate.Some times nightlies are considered must stable than the snapshots. As of now we have android lollipop in form on CM 12.0. 
  • Network speed: You can get insight of your network speed n status bar.This is much helpful feature when compared to other features if you browse heavily.
    custom roms desire 816 traffic indicator
  • If you are missing root functionality or all your root apps are not working properly then to developer settings and check if root permissions are set properly.
These are key features of official  cyanogenmod 12.0 custom rom and you can explore rest of the features by flashing rom this on your htc desire 816 a5.

  • Check you model device variant first.This is essential as flashing rom on other variants might cause issues
  • Make sure that Htc Desire 816 drivers, that is sync is already installed on your computer.If you don't have a recovery installed then you have to install them bridge connection between pc and desire 816.
  • You must have updated it to latest official software version that is available.
  • Root:Do you have root access on your Htc desire 816? if yes its fine.If not then also don't worry as we are going to start from scratch.
  • Backup:Backup all your data which includes contacts,apps,photos videos etc everything to computer or any cloud networks as flashing cyanogenmod 12.0 rom on htc desire 816 ,wipes all your internal storage data.
  • Battery: Charge your desire 816 to 80% so that you wont encounter any battery related problems while flashing this rom.
  • Backup Efs partitions: This is for those who already have twrp recovery installed.Backup all your efs partition of your htc desire 816 on current Rom or firmware.Just in case if you loose signal you can just restore it back.
  • Custom recovery: You need a custom twrp recovery  installed on your desire 816.Without it you can not flash roms at all.Or else you have to download twrp recovery for htc desire 816.
  • You must have a unlocked bootloader.If not ,no worries.
  • Downloadscyanogenmod 12.0 for htc desire 816 a5  and google apps and transfer them to internal storage.

If you have a custom recovery installed proceed to step 3 directly.If not follow from step one.

#1: Unlock bootloader of htc Desire 816

This is first step is to unlock bootloader which you have go through before installing any custom rom on htc desire 816 and is a simple process but it requires a computer with Internet connection.
Must read: Basic adb and fastboot commands
  • Download and install htc drivers on your computer if you don't have.
  • Now power off the device completely and wait for few seconds to confirm that it is completely off.
  • Hold volume down and power button at same time for few seconds.When you see hboot release buttons.Using volume down for navigation select "fastboot" and click on power button to put desire 816 into fastboot.
  • Once you are in fastboot mode connect it to computer through usb cable and if you notice any driver installation process let it complete first.
  • Download  fastboot on our laptop or Pc and install it.You can install it any location but choose location as c: which is default location.
  • open the fastboot folder which is located in "c:\programming files".Right click on empty space by holding shift and you see an option "open cmd here".
  • If you don't find this option then press windows and R buttons at same time ,Run pops up and type cmd to open command prompt.
  • Now go to fastboot folder and copy the location of it which you can see in address bar of folder.
  • In command prompt type the command "Cd location of fastboot folder" and press enter.You will notice that fastboot appears in command line.To paste location right click on empty space in cmd and several pops up.Select paste.
  • One you press enter you have to notics minimal adb and fastboot in command line instead of c or some thing.
  • Once you are in fastboot window type "fastboot devices" and press enter.If your device is detected you will get a serial number in list of  devices attached.If not uninstall drivers and install them again.
  • Now type the command "fastboot oem get_identifier_token" and hit enter.You will get a serial key.Copy that key to notepad or ms-word.
  • Now open htcdev.com and register with a valid email id.
  • One you sign up there.Log in to your account and you will find developer centre in top most part.
  • Click on it and you will have three more options to choose from.select unlock bootloader.
    Unlock bootloader of htc desire 816 a5
    Unlock bootloader of htc desire 816 a5
  • Proceed all other steps as mentioned and you are are asked to submit Submit your key there.
  • You will receive a mail from Htc which includes a unlock_code.bin file. Download it and move it to fastboot folder which is located in programming files.
  • Now type the command "fastboot flash unlocktoken unlock_code.bin" and hit enter.Check your device ,you will notice a notification on desire 816 to confirm unlocking bootloader. Click on yes.This will unlock bootloder and also erases all data of your Htc desire 816.
  • You have a unlocked bootloader device which is ready to accept a recovery to be flashed.

#2: Install Twrp recovery on Htc desire 816 

  • Now download twrp recovery for htc desire 816  above link and paste it in fastboot folder.Don't forget to rename it to recovery or to twrp so that you can type it easily in command.
  • Put the device in fastboot mode again using button combinations.See it in step 1 if you don't know.
  • Type the command "fastboot flash recovery recovery.img".This will install latest twrp recovery on your htc desire 816 .
  • Once you have installed recovery reboot it and copy cyanogenmod 12.0 which you have downloaded on your computer to desire 816 internal storage and head over to next step.
#3: Flash Cyanogenmod 12.0 rom using Twrp
  • Download Cm 12.0 for  htc desire 816 for your model only and Gapps transfer it to sdcard or internal storage of your device.
  • Power of  device completely and wait for few seconds to confirm that it is off completely.
  • Hold volume down and power button at same time for few seconds.
  • When you see hboot release buttons.Using volume keys for navigation select recovery and click on power button to reboot into twrp recovery.
  • Once you are in  twrp click on  backup and select all partitions which you want to backup. It might take about 5 minutes for backup to complete. Don't interrupt backup process.This step is essential if flashing is your first time.
  • Once backup of your existing rom is completed click on back button.Wipe data,cache and dalvik cache and wipe system partition too.
  • Now select Install and navigate to location where you have placed your cm 12.0 rom and gapps zip files.
  • Flashing this might take about 5 minutes or even less.Once flashing is complete do a factory reset again.
  • Now reboot to system.

Wait for at least 30 minutes for initial boot to complete and once done you explore its features.One thing you have to keep in mind that you have to make nandroid backup for sure.Just in case if it enters bootloop you can restore it back.

If you experience any bootloops then press and hold power button for about 15 seconds and you will notice that it goes off completely and now use button combination to boot into hboot and from there enter recovery again.Once you are in recovery just restore backup.

If you have any other questions regarding installing cyanogenmod 12.0 custom rom on your htc desire 816 a5 don't forget to leave a comment below. 
Install android lollipop based Cyanogenmod custom rom on Htc desire 816 a5 Reviewed by Radha Krishna on 21:05 Rating: 5 Htc desire 816 is one of first device to have a snapdragon 400 processor.It is initially launched with android kitkat and is yet to receive...

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