Removed Google Apps system app, now the device wouldn't boot I have a Micromax Canvas A1 device (Android one). It's been rooted and I have removed some system apps on it before. When I disabled Google App, a lot of space was freed and the system worked fine. So I thought I could free some more space by uninstalling the app without any harm. But when I uninstalled it, the 'searchbox stopped working' message came up. I powered off and then on again, but the boot doesn't complete. The android boot animation keeps running endlessly. Tried entering recovery mode, couldn't. Micromax logo is all it shows. Tried the same with adb, it says 'insufficient permissions for device'.

How do I fix this?
Reflash the Android One OS by booting into recovery. 

First get into the bootloader:

1) Power off your device and wait 4-5 seconds after lights go off.

2) Press and hold Power + Volume Up button together for a few seconds and then release the buttons as soon as you see the boot menu screen

3) Boot into recovery. Flash the Original ROM using TWRP or stock recovery