After replacing the motherboard, phone freezes

[ithagu1]

I have an issue with my Galaxy S10+.

It had a water damage, so the motherboard died.

I bought another S10+ from eBay with screen damage and used that motherboard and all works 100%.

I have 2 problems though.

1. Whenever I plug my headphones in this phone, it freezes. 

2. When I insert a simcard, againg the phone freezes. 

Apart from these two issues, the phone works 100% on WIFI.

Whatsapp calls 100%

Browsing & emails & accounts all is perfect. 

What could be causing the freezing problem here?

Any solutions, I will appreciate. Thank you.

[LongHiker · Accepted solution]

@ithagu1 I would think that the most likely cause of these issues is the motherboard that you purchased on eBay. 

[ithagu1]

Do you maybe think a reload of the firmware might fix this? 

🤔🤔🤔

[ithagu1]

Let me wipe data and restart the phone and see if this will fix.