"The operating system on your device is modified in an unauthorised way" System Update error on android device.
Note: This option wouldn't work to rooted device, but it can be solved if you unroot the phone.
Steps: 1. Power off the device and access recovery mode 2. Use "Wipe cache partition " You can also use " Wipe Data/ factory reset" , if this method doesn't work. find the procedure in the 2:26 3.use "Reboot system Now" for normal start up. Contact : deezzone music credit: ticker- silent panther
