crashes on startup

Hi try clearing your cache partition and when it starts see if software is updated

If you’ve already allowed the device to finish the update for several hours but booting up is still a problem, you have no choice but to perform troubleshooting. The first steps to do is to see what happens if you force reboot the device. This procedure simulates the effect of physically disconnecting the battery and in some cases, it effectively fixes update issues. Here’s how to do it:

Press and hold the volume down button and don’t let go.Press and hold the power key while holding down the volume down button.Keep both keys held down together for 10 seconds or more.Clear cache partition

Should force reboot fail to fix the issue, the next good thing to do is to access Recovery Mode and wipe the cache partition. This will force the device to delete the current system cache and build a new one.

To clear the cache partition:

Turn off the phone.Press and hold the Volume Up key, Home key, and Power key at the same time.When the phone powers on, the Android System Recovery screen appears approx. 30 seconds later.Release all of the keys.Press the Volume down key to highlight “wipe cache partition.”Press the Power key to select.Press the Volume down key to highlight “yes” and press the Power key to select.When the wipe cache partition is complete, “Reboot system now” is highlighted.Press the Power key to restart the device.