From bdf3d3597b5d8e4260f80a00ada78e9ad612b00b Mon Sep 17 00:00:00 2001
From: herlesupreeth <herlesupreeth@gmail.com>
Date: Thu, 11 Feb 2021 06:59:29 +0100
Subject: [PATCH] utils.py: Fix for parsing MNC

This commit fixes the incorrect parsing of MNC from PLMN.
Previously its was parsing PLMN string 130062 as MCC 310 MNC 260,
whereas it should be MCC 310 MNC 026.

(The SIM was programmed with MCC 310 and MNC 026)

Change-Id: I799469206f87e930d8888367890babcb8ebe23a9
---
 pySim/utils.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/pySim/utils.py b/pySim/utils.py
index 3838effa..c1501847 100644
--- a/pySim/utils.py
+++ b/pySim/utils.py
@@ -137,9 +137,9 @@ def dec_mcc_from_plmn(plmn):
 
 def dec_mnc_from_plmn(plmn):
 	ia = h2i(plmn)
-	digit1 = ia[2] & 0x0F		# 3rd byte, LSB
-	digit2 = (ia[2] & 0xF0) >> 4	# 3rd byte, MSB
-	digit3 = (ia[1] & 0xF0) >> 4	# 2nd byte, MSB
+	digit1 = (ia[1] & 0xF0)	>>4		# 2nd byte, MSB
+	digit2 = ia[2] & 0x0F			# 3rd byte, LSB
+	digit3 = (ia[2] & 0xF0) >> 4	# 3nd byte, MSB
 	if digit3 == 0xF and digit2 == 0xF and digit1 == 0xF:
 		return 0xFFF # 4095
 	return derive_mnc(digit1, digit2, digit3)