Install Jellybean custom ROM in Micromax A90s

Now you can apply first ever Jellybean custom ROM on Micromax A90s. The custom ROM is called ZhaoBlastJB v1.1 which based on android 4.1.1. The ROM can also be applicable for BLU Vivo 4.3 smartphone. The custom ROM features Galaxy S4 TouchWiz 5.0 and weather widget. It has Sony bravia 2 and 3 patch and album too. The boot sound is removed from old version and all the apps are zipalign. It supports battery saving and overall better performance tweaks.

Since it’s an unofficial update which means bug invasion is guarantied. So as loss of warranty because it comes with pre-root and superuser to remove the ROM. Pamandroid will not be responsible for any kind of data loss or brick of device.


  1. Micromax A90s
  2. Computer with internet connectivity
  3. Original USB cable
  4. Battery charged upto 40 % otherwise charge more
  5. Disable the antivirus program in computer and uninstall the same in smartphone
  6. Backup of all files present in system memory is necessary because we have to wipe cache
  7. Enable the USB debugging by settings->application->development


  • ZhaoBlastJB v1.1 ROM zip (
  • ROM Manager app

Procedure to update Micromax A90s with new Jellybean custom ROM

Step 1: First check the battery and then you need to download ROM Manager app in phone from Google play store. Also download the above zip file from above link to your computer.

Step 2: After that connect the phone to computer via USB cable and save the ZhaoBlastJB v1.1 ROM zip in root of the sd card. Do not save in any sub folder. Then detach the cable.

Step 3: Go to ROM Manager app and tap to select reboot system in recovery mode. The phone will switch off and boot automatically in recovery mode.

Step 4: In the recovery mode you need to choose to wipe cache partition and wipe data/factory reset. Then go back to mount & storage menu. There format the data, system and cache. The Delvik cache must also be wiped out in advance menu.

Step 5: After cleaning things, go back in main menu with volume rocker and install the zip file and wait to install the Jellybean custom ROM. The flashing of ROM takes 5 minutes and to reboot select reboot system now in main menu. The overall time to boot in normal mode, it will take more minutes so keep patience.

Congratulations you have successfully learned to install the first ever Jellybean custom Rom called ZhaoBlastJB v1.1 in Micromax A90s and BLU Vivo 4.3. BLU Vivo 4.3 needs sometime thing different way if this procedure doesn’t work. So follow the source link given below to flash the ROM. Anyways do like our Facebook and Google+ page.

Source (

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