Read SIM 1st message and display it in a 20x4 LCD

[loosha]

Just I think so you don’t see the code carefully.
In my initialization I do the work.
Line = $80 'LCD 1st line

[EarlyBird2]

This instruction

HSERIN 5000,READ_SMS,[WAIT("AT+CMGR=1"),STR Sedata\13]'Check OK reply, wait 5sec max.

reads in 13 characters

this is what you should have

HSERIN 5000,READ_SMS,[WAIT("AT+CMGR=1"),STR Sedata\40\13]'Check OK reply, wait 5sec max.

Which will read in 40 characters but stop if a ASCII 13 is read.