diff --git a/update-sha1sums.py b/update-sha1sums.py
new file mode 100755
index 0000000..117f443
--- /dev/null
+++ b/update-sha1sums.py
@@ -0,0 +1,57 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2016 The CyanogenMod Project
+# Copyright (C) 2017 The LineageOS Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from hashlib import sha1
+
+device='X6833B'
+vendor='infinix'
+
+lines = [ line for line in open('proprietary-files.txt', 'r') ]
+vendorPath = '../../../vendor/' + vendor + '/' + device + '/proprietary'
+needSHA1 = False
+
+for index, line in enumerate(lines):
+    # Remove '\n' character
+    line = line[:-1]
+
+    # Skip empty lines
+    if len(line) == 0:
+        continue
+
+    # Check if we need to set SHA1 hash for the next files
+    if line[0] == '#':
+        needSHA1 = (' - from' in line)
+        continue
+
+    if needSHA1:
+        # Remove existing SHA1 hash
+        line = line.split('|')[0]
+
+        if line[0] == '-':
+            file = open('%s/%s' % (vendorPath, line[1:]), 'rb').read()
+        else:
+            file = open('%s/%s' % (vendorPath, line), 'rb').read()
+
+        hash = sha1(file).hexdigest()
+        lines[index] = '%s|%s\n' % (line, hash)
+
+with open('proprietary-files.txt', 'w') as file:
+    for line in lines:
+        file.write(line)
+
+    file.close()