Signal Loss and Automatic Shutdown After Phone Display Replacement

I replaced my phone's display due to rainwater damage, and it's functioning properly. However, after inserting the SIM card, it's not receiving a signal, and the phone also shuts down automatically when not in use. Can you please assist me with this issue?

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Hi @nick14579,

Did you check for and clean off any corrosion from the systemboard, flex cable connections, battery connections etc due to the water damage to the screen, using Isopropyl Alcohol 99% if there was, you never mentioned it?

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