diff --git a/Makefile b/Makefile
index 05e3a6a..5ae9fa7 100644
--- a/Makefile
+++ b/Makefile
@@ -8,4 +8,10 @@ build:
 #	@$Env:GOOS="linux"; $Env:GOARCH="arm"; $Env:GOARM=5
 
 #	.profile
-#	cgo_enabled 0
\ No newline at end of file
+#	cgo_enabled 0
+
+push:
+	git status
+	git add -A
+	git commit -m "Transfer."
+	git push origin master
\ No newline at end of file
diff --git a/api/modem/at/at.go b/api/modem/at/at.go
index e6f25d9..9c1c5a3 100644
--- a/api/modem/at/at.go
+++ b/api/modem/at/at.go
@@ -92,6 +92,7 @@ func (p *atPort) makeReq(msg string) (string, error) {
 	}
 	// Read
 	readLen, err := p.port.Read(p.inputBuf)
+	log.Println("RAWREAD:", string(p.inputBuf[:readLen]))
 	if err != nil {
 		return "", fmt.Errorf("port read: %w", err)
 	}
diff --git a/api/modem/modem.go b/api/modem/modem.go
index a595817..a0dda20 100644
--- a/api/modem/modem.go
+++ b/api/modem/modem.go
@@ -107,11 +107,11 @@ func (m *modem) checkPort(portName string) error {
 
 	// Check serial connection
 	// Connect
-	port := at.New(portName, m.baudrate)
-	if err := port.Connect(); err != nil {
+	m.port = at.New(portName, m.baudrate)
+	if err := m.port.Connect(); err != nil {
 		return fmt.Errorf("connect: %w", err)
 	}
-	defer port.Disconnect() // Do not bother about errors...
+	defer m.port.Disconnect() // Do not bother about errors...
 
 	// Ping
 	log.Println("Ping...")
@@ -121,7 +121,7 @@ func (m *modem) checkPort(portName string) error {
 	}
 
 	// Check model
-	model, err := port.Request(at.CmdGet, "CGMM")
+	model, err := m.port.Request(at.CmdGet, "CGMM")
 	if err != nil {
 		return fmt.Errorf("get model: %w", err)
 	}