If you getting error of Your System is Up to Date then follow below steps to Update your Karbonn Sparkle V running on LMY48M firmware with stock recovery.Note that your device must be unrooted and running on Stock Recovery.Here in this Steps by step tutorial of how to install the Android 6 OTA update on Karbonn Sparkle V manually.
See also:[OTA] Download Android Marshmallow 6.0 For Canvas A1 [How to]
#Update Micromax Canvas A1 to Android 6.0 Marshmallow.
1.Download the OTA file Karbonn Sparkle V from here and save the file on your desktop.
2.Now copy this OTA file into your Root of SD Card.
3.Then restart your device into
Recovery mode.You can do it by Switching OFF your device and then
pressing Volume down Key and power key for few sec Unitll you see the
bootloader.
5.Now Wait till the file is flashed (It takes about 5 – 7 minutes to complete the process).
6.After it’s done select “Reboot to a system now”.
Now your Canvas A1 will reboot and first boot take Some time.After boot completes You have Android 6.0 Marshmallow on your Karbonn Sparkle V.Enjoy!