Inspiron 13 5378 Signature Edition Unable to Auto-rotate in tent/tablet mode

Hello,

I have been using my Inspiron 13 5378 since December 2016. After working normally for few days my screen stopped auto-rotating.
I sent my laptop back to Dell for repair and received it after a month in April. Very frustrating thing.

When I received the repaired laptop the auto orientation was working fine but it stopped working again after a couple of days.

I don't know what is triggering this but I have tried myriad of solutions available online including reinstalling chipset and sensor drivers, disabling and re-enabling sensors in device manager, setting sensor services to start automatically and much more.

But still, the auto-rotate feature is not working.

I don't want to send my laptop back to dell again for another month, please suggest any solution if you know it.

Thanks in advance!