Device failed to turn on after software update.

[sriman1]

Hi, After software updates done on Samsung galaxy M30S, device is failed to turn on and only the Samsung logo is displaying all the time.

Can anybody please help me out.

[TrivendraSingh]

Try clearing cache by booting into the recovery mode and then restart the phone. If it still doesn't work try clearing the data as well to reset the device. Remember this will also clear all your important data that you have on your phone.

[sriman1]

what are the steps to reset the device ? 

[Anonymous]

press and hold volume down and power button for 7 seconds

[sriman1]

Device gets turn on but it gets hanged with displaying samsung logo

[Anonymous]

you have to do directly factory reset after taking backup..software glitches present

[Devv_007]

1> Boot to recovery mode and do a Cache wipe from there.

2>If not working with Wipe cache then do a factory reset from there.

3>If option 2 also doesn't work then boot it to download mode and reflash stock firmware via odin.For more info check sammobile.com and youtube tutorials for firmware flashing.

[MrGEEK]

1. power off the device.
2. Press volume up+power key+home button/bixby button, untill you see samsung logo and android on screen.

3. release power key and you will enter to recovery mode.

4.Use volume up and down to goto wipe cache partition and press power button to wipe cache.(you will see the status below)

5.now navigate to factory reset and press power button to reset.

6. Once all is done then navigate to reboot system and press power key, you will see samsung logo, wait for 6-7 min, after which your phone will start.

[MrGEEK]

If upper method don't work then use smart switch.

[rahul2202]

just press volume down and power key at same time for 30 seconds your phone will restart dont worry