How to Install Custom ROM in Android
How to Install Custom ROM in Android

Flashing Custom ROMs in Android Device: Being able to install and flash custom ROMS  is one of the biggest reason that today so many people are rooting their Android Smartphones. Why stick to the old and monotonous interface of the device, when you can get much more interactive looks as well as much more great tweaks with custom ROMs. You can flash custom ROMs and just sit back and enjoy the interface on your Android Smartphone.

Android is great, but sometimes, the version you get with your phone—whether its vanilla Android or something like Samsung’s TouchWiz—leaves a bit to be desired. Here’s how to install a new version of Android (or ROM) on your device for an even better Android experience. Rooting your device grants you the power of your device. Power to manipulate its Performance and other features.

If you want to know more about rooting and Installing custom ROMS you can check this post : [Guide] From Rooting to Installing Custom ROM. Before reading this Make sure you have ClockworkMOD/TWRP or any other Recovery installed in your device. If you have a Mediatek Device you can make your own CWM & install in just 5mins by this method : CWM for Mediatek


Make sure the Custom Rom you are flashing is meant for your device or else it can cause boot loopsand soft brick . I’m not responsible for anything that happensto your device while flashing roms.

Prerequisite before installing Custom ROM :

  1. Download the suitable custom ROM for your device.
  2. Put the custom rom zip file in your sd card.
  3. Go To CWM Recovery/TWRP or any other recovery: Switch off the Phone Press and hold ” Volume Up + Power+ Home (Button combinations differs from device to device)” Buttons and Select Recovery Mode by Volume Up . Select Recovery Mode by Volume Down
  4. Backup: Before installing any rom please make a  Nandroid backup of  your current rom
    For that go to Backup and restore in recovery then click on Backup.  So that you if you mess things up then you can easily get back your phone to its previous working state and prevent it from soft brick .
  5. Now the Crucial Part Begins (i.e. Installing a custom rom)

How to Install Custom ROM through CWM & other recoveries:

Installing Custom ROM from CWM recovery
Installing Custom ROM from CWM recovery

Step 1: Wipe data factory reset –> Yes–delete all user data

Step 2: Wipe Cache Partion -> Yes-Wipe Cache

Step 3: Advanced -> Wipe Dalvik Cache -> Yes- wipe dalvik cache

Step 4: mounts and storage –> Format /System /data /cache.

Step 5: Install zip from sd –> – choose zip fromsdcard –> – Select Zip

Step 6: Reboot System now

Step 7: Wait for 5-10 min to bootup for the first time.

Now you are all set! You’ll have a new ROM with tons of settings to play with, the Play Store to download new apps, and—if you made a backup with Titanium—you can now head into Titanium Backup and restore all your apps and their settings. Enjoy!

How to Install Custom ROM through TWRP Recovery:

Installing Custom ROM from TWRP Recovery
Installing Custom ROM from TWRP Recovery

Step 1: Backup is needed or else Goto Wipe & Select System, Data, Cache & Dalvik cache.

Step 2: Swipe right to confirm wipe & wait for the wiping process to complete.

Step 3: Now goto Install & locate the downloaded ROM file. Select the file & swipe to confirm.

Step 4: Wait for the process to complete. It might take time depending on the device & recovery (Official/unofficial).

Step 5: Now reboot your device.


1. The Wipe data and cache doesn’t wipe Contacts?

-> It does wipe everything but your contacts/pictures are synced in your Google Account so they’ll be restored back. Any game progress *might* (don’t quote me) be saved on your SD Card so you might not have a problem. It doesn’t wipe your SD card, just the phone’s data.

2. How to Backup Apps & data?

-> You can use Titanium Backup to Backup system apps and data.

Last updated on: Apr 28, 2016 @ 7:34 pm


  1. Is there any inbuilt Google Apps (GApps) in Karbonn ROMs??? or should I download externally from any site? and what version to download as my device is MT6572 based..

  2. Hello, Am trying to find some way but lost. Please help
    I have karbonn S9. I want to install Lollipop. Presently it has Android 4.2.2. I have already rooted my mobile long back. Following is done.
    1) Downloaded and Installed Rom Manager from Play Store
    2) Since my phone is already rooted, I have SU permission and I think I have CWM also.
    3) When i open Rom Manager, it ask me for CWM. I said download and install but Rom Manager said my phone is not listed and therefore cannot download new CWM. It therefore, used already installed CWM.
    4) I tried to backup system. I started Rom Managr – Backup current Rom. Phone started in Recovery Mode. I selected Backup User Data. Backup started, phone asked to reboot. When I tried to find backup, can’t find back up :'(
    5) My CWM recovery looks old something ver 3….. Current version I saw is 6……. There are differences in the pics of recovery mode shown here and my phone recovery mode.
    6) Presently downloading “Android L for Titanium S9 –”. Also downloading Lollipop
    6) Now I want is:
    a) Update CWM recovery
    b) Backup my current ROM
    c) Update my phone to Lollipop version.
    d) In case of any problem while updating, how to use my current rom to install ver 4.2.2. again.

    Please guide me the steps.


  3. Ajinkya sir,
    i have faced a problem flashing your android L ROM for karbonn titanium S9.When i enter into the recovery mode in my mobile i dont get a option called “ADVANCE”

  4. Installed the L custom rm for my karbonn A25 intallation was fine but im stuck in the boot fo a long time
    Plz help me.

  5. HI Ajinkya.

    How can i revert my original OS of my Titanium S1.???
    please reply me.
    Give me original ROM or Backup file.

  6. Hy ajinkya tell how to do step no.3to5
    How to do dalvik cache & install rom from zip please response as soon as possible

    • Hey, CWM allows to install unofficial firmwares but the stock rom is factory firmware which is in different format but don't worry i'll post a CWM flashable stock rom. As many users are finding it difficult to install Stock recovery.

  7. hey bro im not able to make backup in cwm recovery in my titanium s5+ …it shows ''cant mount system'' now what to do :[

    • Hey, i think you have done something wrong while installing the CWM recovery which means cwm is not compatible with S5+ stock rom. But its working well on other device. Try installing cwm recovery again.

  8. nothing was coming in this way but holding volume down + power button some other menu is coming but there isn't any option for installing zip from sd please tell me how can i do this

  9. Hi Ajinkya!
    I flashed the xperia z rom on karbonn titanium s5 plus via CWM.Now my phone does not boot and it gets stuck on the xperia z screen forever…….
    What should I do ?????
    Plz help me as soon as possible!!!!!

  10. How to find which is the exceptional rom to do format system and how to instal custom rom on another custom rom on karbonn

  11. hey is there a problem with the sound driver?? internal speaker and headphones work fine but the external speaker has nothing going on. so no ring, no alarm, no music. pls help sir.

    my mobile model karbonn a12+