Problem on my Sony Experia Tipo single-sim

[maikumike]

Hey,

I just bought my xperia tipo almost 4 months ago.

and this is my problem:

Everything is fine except for the rectangular red light blinking on my screen display.

This only happens when I'm on the "Messaging" menu.

I got the same problem previously and I have resolved this by simply updating the software phone via Sony PC Companion.

But this time, it hadn't worked. What else can I do? I haven't tried doing factory reset and I dont want to

Is there another solution for this problem? Please advice.

Thanks in advance. 

[Johan]

You could check if it still remains if you use another SIM card? Let me know how it goes.