diff --git a/frontend/index.html b/frontend/index.html
index d2a1c6b..60c9398 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -1901,7 +1901,7 @@ function onFilterChange() {
 }
 
 // ──────────────────── Versioning ────────────────────
-const PWA_VERSION = '1.17.0';
+const PWA_VERSION = '1.17.1';
 const MIN_SERVER_VERSION = '1.0.0';
 
 function parseVersion(v) {
diff --git a/frontend/sw.js b/frontend/sw.js
index d4faf00..9540a82 100644
--- a/frontend/sw.js
+++ b/frontend/sw.js
@@ -1,4 +1,4 @@
-const CACHE = 'simtrace-analyser-v24';
+const CACHE = 'simtrace-analyser-v25';
 
 const PRECACHE = [
     'index.html',
diff --git a/pyproject.toml b/pyproject.toml
index 3c7f5a6..7eef658 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.backends._legacy:_Backend"
 
 [project]
 name = "simtrace2-pysniff"
-version = "1.17.0"
+version = "1.17.1"
 description = "Python-based sniffing tool for SIMtrace2 hardware (SIM card communication sniffer)"
 readme = {file = "README.md", content-type = "text/markdown"}
 license = {text = "GPL-2.0-or-later"}
diff --git a/simtrace2_pysniff/__init__.py b/simtrace2_pysniff/__init__.py
index 9790553..5a2c95a 100644
--- a/simtrace2_pysniff/__init__.py
+++ b/simtrace2_pysniff/__init__.py
@@ -6,7 +6,7 @@ from .gsmtap import GsmtapSender, GsmtapReceiver
 from .pcap import PcapWriter
 from .dump import FileDumper, format_message
 
-__version__ = '1.17.0'
+__version__ = '1.17.1'
 __all__ = [
     'SniffSession',
     'DeviceDisconnected',
diff --git a/simtrace2_pysniff/server/decode.py b/simtrace2_pysniff/server/decode.py
index 98d9125..4a89460 100644
--- a/simtrace2_pysniff/server/decode.py
+++ b/simtrace2_pysniff/server/decode.py
@@ -3243,19 +3243,32 @@ def _decode_smsp(raw, p1=None):
 
 
 def _decode_spdi(raw, p1=None):
-    """EF_SPDI (§4.2.66): 'A3' container with PLMN records (§0.3)."""
+    """EF_SPDI (§4.2.66): 'A3' container (or bare '80' value tags) with
+    3-byte PLMN records — same shape as EF_PLMNwAcT for _file_summary."""
     if all(b == 0xff for b in raw):
         return {'empty': True}
+    plmns = []
+
+    def collect(value):
+        for i in range(0, len(value) - 2, 3):
+            plmn = _decode_plmn(value[i:i + 3])
+            if plmn and plmn not in plmns:
+                plmns.append(plmn)
+
     for tag, _length, value in parse_tlv(raw):
         if tag == 0xA3:
-            plmns = []
-            for i in range(0, len(value) - 2, 3):
-                plmn = _decode_plmn(value[i:i + 3])
-                if plmn:
-                    plmns.append(f"{plmn['mcc']}-{plmn['mnc']}")
-            if plmns:
-                return {'plmns': plmns if len(plmns) > 1 else plmns[0]}
-    return {'raw': raw.hex().upper()}
+            got = False
+            for t2, _l2, v2 in parse_tlv(value):
+                if t2 == 0x80:
+                    collect(v2)
+                    got = True
+            if not got:
+                collect(value)  # bare records inside A3
+        elif tag == 0x80:
+            collect(value)
+    if not plmns:
+        return {'raw': raw.hex().upper()}
+    return {'plmns': plmns}
 
 
 def _decode_spn(raw, p1=None):
diff --git a/tests/test_decode.py b/tests/test_decode.py
index 7cad17b..cd00048 100644
--- a/tests/test_decode.py
+++ b/tests/test_decode.py
@@ -1976,8 +1976,29 @@ class TestNewFileDecoders(unittest.TestCase):
 
     def test_spdi(self):
         from simtrace2_pysniff.server.decode import _decode_spdi
-        r = _decode_spdi(bytes.fromhex('a30652f01000f110'), p1=None)
-        self.assertEqual(r['plmns'], ['250-01', '001-01'])
+        # Standard form: A3 wrapping inner '80' TLVs, one PLMN each
+        r = _decode_spdi(bytes.fromhex('a30a8003' '52f010' '8003' '72f010'), p1=None)
+        self.assertEqual(r['plmns'], [{'mcc': '250', 'mnc': '01'},
+                                      {'mcc': '270', 'mnc': '01'}])
+
+    def test_spdi_bare_records_fallback(self):
+        from simtrace2_pysniff.server.decode import _decode_spdi
+        r = _decode_spdi(bytes.fromhex('a306' '52f010' '00f110'), p1=None)
+        self.assertEqual(r['plmns'], [{'mcc': '250', 'mnc': '01'},
+                                      {'mcc': '001', 'mnc': '01'}])
+
+    def test_spdi_read_binary_regression(self):
+        # stk_test1 session msg 14036: READ BINARY of EF_SPDI crashed
+        # _build_summary (plmns were strings, not dicts) → whole message
+        # decoded as None ("No decoded data available").
+        prev = {'sel': {'fid': '6fcd', 'name': 'EF_SPDI',
+                        'structure': 'transparent'},
+                'ins': 0xA4, 'ins_name': 'SELECT', 'sw1': '61'}
+        r = decode_message(bytes.fromhex(
+            '00b000000da305800352f020ffffffffffff9000'), prev=prev)
+        self.assertEqual(r['file']['plmns'],
+                         [{'mcc': '250', 'mnc': '02'}])
+        self.assertIn('250/02', r['summary'])
 
     def test_smsp(self):
         from simtrace2_pysniff.server.decode import _decode_smsp
diff --git a/tests/test_pcap_import.py b/tests/test_pcap_import.py
index 7e5ab53..2a32b32 100644
--- a/tests/test_pcap_import.py
+++ b/tests/test_pcap_import.py
@@ -197,7 +197,7 @@ class TestImportEndpoint(unittest.TestCase):
 class TestVersion(unittest.TestCase):
     def test_package_version(self):
         from simtrace2_pysniff import __version__
-        self.assertEqual(__version__, '1.17.0')
+        self.assertEqual(__version__, '1.17.1')
 
     def test_status_includes_version(self):
         import os