Added extra warnings about unsupported modems

README

@@ -9,7 +9,7 @@ Licence:
 	GNU GPL version 2
 
 Version:
-	0.3
+	0.4
 
 Requirements:
 	Linux
@@ -52,5 +52,12 @@ Troubleshooting:
 	Early reports suggest that some modems cannot be unlocked by this
 	program. When I get hold of one of these devices I will work on it.
 
+	E220 devices will not work. I don not think they will ever work with
+	this script.
+
+	Devices beginning "E3" are unlikely to work at this point. I hope to
+	support these in a future version. If you have such a device and decide
+	to try this script please give me feedback on the link below.
+
 Bugs:
 	Please raise issues at https://github.com/mcphail/linux_huawei_unlocker

unlocker.py

@@ -3,7 +3,7 @@
 # unlocker.py
 # - Remove simlock on huawei modems
 #
-# Copyright (C) 2012 Neil McPhail
+# Copyright (C) 2013 Neil McPhail
 #		neil@mcphail.homedns.org
 #
 # Unlock code generator Copyright (C) 2010 dogbert
@@ -123,6 +123,18 @@ def testImeiChecksum(imei):
 		alt = not alt
 	return (_sum % 10) == 0
 
+# Display a warning if first digit of IMEI indicates a potentially troublesome
+# modem
+def checkImeiCompatibility(imei):
+	if ('8' == imei[0]):
+		print 80 * "*"
+		print "\n\tWarning"
+		print "\n\tYour modem's IMEI begins with '8'"
+		print "\tIt is likely to be incompatible with this script"
+		print "\tProceed at your own risk"
+		print "\n\tPlease provide feedback: see README and HELPME\n"
+		print 80 * "*"
+
 # Interrogate the lock status
 # Returns a dictionary with the lock status, remaining unlock attempts
 # and the - largely unused - carrier code
@@ -205,6 +217,7 @@ def main():
 				exit(1)
 			else:
 				print "IMEI checksum OK."
+				checkImeiCompatibility(imei)
 
 	# Obtain lockstatus
 	try: