diff --git a/trezorlib/messages_pb2.py b/trezorlib/messages_pb2.py
index 1b3408a102..29c853f9ef 100644
--- a/trezorlib/messages_pb2.py
+++ b/trezorlib/messages_pb2.py
@@ -20,7 +20,7 @@ from . import types_pb2
 DESCRIPTOR = _descriptor.FileDescriptor(
   name='messages.proto',
   package='',
-  serialized_pb=_b('\n\x0emessages.proto\x1a\x0btypes.proto\"\x0c\n\nInitialize\"\r\n\x0bGetFeatures\"\x98\x03\n\x08\x46\x65\x61tures\x12\x0e\n\x06vendor\x18\x01 \x01(\t\x12\x15\n\rmajor_version\x18\x02 \x01(\r\x12\x15\n\rminor_version\x18\x03 \x01(\r\x12\x15\n\rpatch_version\x18\x04 \x01(\r\x12\x17\n\x0f\x62ootloader_mode\x18\x05 \x01(\x08\x12\x11\n\tdevice_id\x18\x06 \x01(\t\x12\x16\n\x0epin_protection\x18\x07 \x01(\x08\x12\x1d\n\x15passphrase_protection\x18\x08 \x01(\x08\x12\x10\n\x08language\x18\t \x01(\t\x12\r\n\x05label\x18\n \x01(\t\x12\x18\n\x05\x63oins\x18\x0b \x03(\x0b\x32\t.CoinType\x12\x13\n\x0binitialized\x18\x0c \x01(\x08\x12\x10\n\x08revision\x18\r \x01(\x0c\x12\x17\n\x0f\x62ootloader_hash\x18\x0e \x01(\x0c\x12\x10\n\x08imported\x18\x0f \x01(\x08\x12\x12\n\npin_cached\x18\x10 \x01(\x08\x12\x19\n\x11passphrase_cached\x18\x11 \x01(\x08\x12\x18\n\x10\x66irmware_present\x18\x12 \x01(\x08\"\x0e\n\x0c\x43learSession\"\\\n\rApplySettings\x12\x10\n\x08language\x18\x01 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MessageType_DebugLinkMemoryWrite\x10p\x1a\x04\xa0\xb5\x18\x01\x12)\n\x1fMessageType_DebugLinkFlashErase\x10q\x1a\x04\xa0\xb5\x18\x01\x42\x30\n\x1f\x63om.satoshilabs.trezor.protobufB\rTrezorMessage')
   ,
   dependencies=[types_pb2.DESCRIPTOR,])
 _sym_db.RegisterFileDescriptor(DESCRIPTOR)
@@ -298,8 +298,8 @@ _MESSAGETYPE = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=4900,
-  serialized_end=7308,
+  serialized_start=4918,
+  serialized_end=7326,
 )
 _sym_db.RegisterEnumDescriptor(_MESSAGETYPE)
 
@@ -2406,6 +2406,13 @@ _ETHEREUMSIGNTX = _descriptor.Descriptor(
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
       options=None),
+    _descriptor.FieldDescriptor(
+      name='chain_id', full_name='EthereumSignTx.chain_id', index=8,
+      number=9, type=13, cpp_type=3, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
   ],
   extensions=[
   ],
@@ -2418,7 +2425,7 @@ _ETHEREUMSIGNTX = _descriptor.Descriptor(
   oneofs=[
   ],
   serialized_start=3580,
-  serialized_end=3744,
+  serialized_end=3762,
 )
 
 
@@ -2468,8 +2475,8 @@ _ETHEREUMTXREQUEST = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=3746,
-  serialized_end=3849,
+  serialized_start=3764,
+  serialized_end=3867,
 )
 
 
@@ -2498,8 +2505,8 @@ _ETHEREUMTXACK = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=3851,
-  serialized_end=3886,
+  serialized_start=3869,
+  serialized_end=3904,
 )
 
 
@@ -2549,8 +2556,8 @@ _SIGNIDENTITY = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=3888,
-  serialized_end=4013,
+  serialized_start=3906,
+  serialized_end=4031,
 )
 
 
@@ -2593,8 +2600,8 @@ _SIGNEDIDENTITY = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4015,
-  serialized_end=4087,
+  serialized_start=4033,
+  serialized_end=4105,
 )
 
 
@@ -2637,8 +2644,8 @@ _GETECDHSESSIONKEY = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4089,
-  serialized_end=4192,
+  serialized_start=4107,
+  serialized_end=4210,
 )
 
 
@@ -2667,8 +2674,8 @@ _ECDHSESSIONKEY = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4194,
-  serialized_end=4231,
+  serialized_start=4212,
+  serialized_end=4249,
 )
 
 
@@ -2697,8 +2704,8 @@ _SETU2FCOUNTER = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4233,
-  serialized_end=4269,
+  serialized_start=4251,
+  serialized_end=4287,
 )
 
 
@@ -2720,8 +2727,8 @@ _FIRMWAREERASE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4271,
-  serialized_end=4286,
+  serialized_start=4289,
+  serialized_end=4304,
 )
 
 
@@ -2750,8 +2757,8 @@ _FIRMWAREUPLOAD = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4288,
-  serialized_end=4321,
+  serialized_start=4306,
+  serialized_end=4339,
 )
 
 
@@ -2780,8 +2787,8 @@ _DEBUGLINKDECISION = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4323,
-  serialized_end=4358,
+  serialized_start=4341,
+  serialized_end=4376,
 )
 
 
@@ -2803,8 +2810,8 @@ _DEBUGLINKGETSTATE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4360,
-  serialized_end=4379,
+  serialized_start=4378,
+  serialized_end=4397,
 )
 
 
@@ -2896,8 +2903,8 @@ _DEBUGLINKSTATE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4382,
-  serialized_end=4617,
+  serialized_start=4400,
+  serialized_end=4635,
 )
 
 
@@ -2919,8 +2926,8 @@ _DEBUGLINKSTOP = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4619,
-  serialized_end=4634,
+  serialized_start=4637,
+  serialized_end=4652,
 )
 
 
@@ -2963,8 +2970,8 @@ _DEBUGLINKLOG = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4636,
-  serialized_end=4695,
+  serialized_start=4654,
+  serialized_end=4713,
 )
 
 
@@ -3000,8 +3007,8 @@ _DEBUGLINKMEMORYREAD = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4697,
-  serialized_end=4751,
+  serialized_start=4715,
+  serialized_end=4769,
 )
 
 
@@ -3030,8 +3037,8 @@ _DEBUGLINKMEMORY = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4753,
-  serialized_end=4786,
+  serialized_start=4771,
+  serialized_end=4804,
 )
 
 
@@ -3074,8 +3081,8 @@ _DEBUGLINKMEMORYWRITE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4788,
-  serialized_end=4858,
+  serialized_start=4806,
+  serialized_end=4876,
 )
 
 
@@ -3104,8 +3111,8 @@ _DEBUGLINKFLASHERASE = _descriptor.Descriptor(
   extension_ranges=[],
   oneofs=[
   ],
-  serialized_start=4860,
-  serialized_end=4897,
+  serialized_start=4878,
+  serialized_end=4915,
 )
 
 _FEATURES.fields_by_name['coins'].message_type = types_pb2._COINTYPE