RFID scanner stopped suddenly

[Md Mubdiul Hasan]

Hello There,

I need a suggestion how to proceed a hardware failure. Recently, I am working with a RFID scanner( 1D and 2D) that has a variety of application(Buzzer,vibrator,bluetooth senors) interfaced with android smartphone. This device has a Gun interface (similar to https://www.go4mobility.eu/wp-content/uploads/2017/06/M3-Mobile-RFID-Gun-Handleiding-User-Manual.pdf).

When I frequently scan the object through RFID, the device gets power OFF suddenly after 1 hour test. For sure, PCB is also getting hot.

I am not sure whether it has firmware or hardware problem.

Kindly suggest me what to do, in case of power management IC, this has been used,http://www.ti.com/lit/ds/symlink/bq24074.pdf.

Thank you