No network signal after restart
My galaxy a72 doesn't have any signal.I had a problem with unresponsive screen lately and I opened the phone to clean and check after getting advice from here.Today while at was ar uni the same problem occurred I restarted the phone just to get by until coming home to change the flex cable(I ordered aa spare one) and since then I have no network connection. Wifi works fine.I tried everything. Can the flex cable cause this problem?
Thanks in advance.
PS I checked my sim on my brother's phone and vise versa. My on my phone I stilldidn't have any signal.