diff --git a/app/Makefile.version b/app/Makefile.version
index 54f82061..8268a85e 100644
--- a/app/Makefile.version
+++ b/app/Makefile.version
@@ -3,4 +3,4 @@ APPVERSION_M=2
 # This is the `spec_version` field of `Runtime`
 APPVERSION_N=34
 # This is the patch version of this release
-APPVERSION_P=1
+APPVERSION_P=2
diff --git a/tests/testcases/manual.json b/tests/testcases/manual.json
index 2446ee81..1cea43e5 100644
--- a/tests/testcases/manual.json
+++ b/tests/testcases/manual.json
@@ -1840,5 +1840,43 @@
       "7 | Gas : 200000"
     ],
     "expert": true
+  },
+  {
+    "name": "minimal_extra_field",
+    "tx": {
+      "account_number": "V1",
+      "chain_id": "V2",
+      "fee": {
+        "amount": [
+          {
+            "amount": "b"
+          },
+          {
+            "c": "d"
+          },
+          {
+            "x": "y"
+          }
+        ],
+        "gas": "V3"
+      },
+      "foo": "bar",
+      "memo": "V4",
+      "msgs": [],
+      "sequence": "V5",
+      "unknown_param": "123456"
+    },
+    "foo": "bar",
+    "parsingErr": "No error",
+    "validationErr": "Unexpected field",
+    "expected": [
+      "0 | Chain ID : V2",
+      "1 | Account : V1",
+      "2 | Sequence : V5",
+      "3 | Memo : V4",
+      "4 | fee/amount : Unexpected field",
+      "5 | Gas : V3"
+    ],
+    "expert": true
   }
 ]
diff --git a/tests_zemu/package.json b/tests_zemu/package.json
index 882e74b5..29671cd8 100644
--- a/tests_zemu/package.json
+++ b/tests_zemu/package.json
@@ -18,7 +18,7 @@
     "testSR25519": "jest --detectOpenHandles --runInBand tests/sr25519.test.ts"
   },
   "dependencies": {
-    "@zondax/zemu": "^0.27.0-rc2",
+    "@zondax/zemu": "^0.27.4",
     "ledger-cosmos-js": "^2.1.8"
   },
   "devDependencies": {
diff --git a/tests_zemu/snapshots/s-mainmenu/00004.png b/tests_zemu/snapshots/s-mainmenu/00004.png
index 641950a4..0fac4278 100644
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diff --git a/tests_zemu/snapshots/s-mainmenu/00010.png b/tests_zemu/snapshots/s-mainmenu/00010.png
index 641950a4..0fac4278 100644
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diff --git a/tests_zemu/snapshots/s-sign_basic_extra_fields/00000.png b/tests_zemu/snapshots/s-sign_basic_extra_fields/00000.png
new file mode 100644
index 00000000..49639ec9
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diff --git a/tests_zemu/snapshots/s-sign_basic_extra_fields/00001.png b/tests_zemu/snapshots/s-sign_basic_extra_fields/00001.png
new file mode 100644
index 00000000..368d6198
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diff --git a/tests_zemu/snapshots/s-sign_basic_extra_fields/00002.png b/tests_zemu/snapshots/s-sign_basic_extra_fields/00002.png
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index 00000000..56fe9ab2
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diff --git a/tests_zemu/snapshots/s-sign_basic_extra_fields/00003.png b/tests_zemu/snapshots/s-sign_basic_extra_fields/00003.png
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index 00000000..9dae9154
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diff --git a/tests_zemu/snapshots/s-sign_basic_extra_fields/00004.png b/tests_zemu/snapshots/s-sign_basic_extra_fields/00004.png
new file mode 100644
index 00000000..08fc31e0
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diff --git a/tests_zemu/snapshots/s-sign_basic_extra_fields/00005.png b/tests_zemu/snapshots/s-sign_basic_extra_fields/00005.png
new file mode 100644
index 00000000..7ee7a7ba
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diff --git a/tests_zemu/snapshots/s-sign_basic_extra_fields/00006.png b/tests_zemu/snapshots/s-sign_basic_extra_fields/00006.png
new file mode 100644
index 00000000..006c26ab
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diff --git a/tests_zemu/snapshots/s-sign_basic_extra_fields/00007.png b/tests_zemu/snapshots/s-sign_basic_extra_fields/00007.png
new file mode 100644
index 00000000..131855e2
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diff --git a/tests_zemu/snapshots/sp-mainmenu/00004.png b/tests_zemu/snapshots/sp-mainmenu/00004.png
index 16bb08a0..c0ce7660 100644
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diff --git a/tests_zemu/snapshots/sp-mainmenu/00010.png b/tests_zemu/snapshots/sp-mainmenu/00010.png
index 16bb08a0..c0ce7660 100644
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diff --git a/tests_zemu/snapshots/sp-sign_basic_extra_fields/00000.png b/tests_zemu/snapshots/sp-sign_basic_extra_fields/00000.png
new file mode 100644
index 00000000..50c23a06
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diff --git a/tests_zemu/snapshots/sp-sign_basic_extra_fields/00001.png b/tests_zemu/snapshots/sp-sign_basic_extra_fields/00001.png
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index 00000000..0f9cfb13
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diff --git a/tests_zemu/snapshots/sp-sign_basic_extra_fields/00002.png b/tests_zemu/snapshots/sp-sign_basic_extra_fields/00002.png
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index 00000000..b47dabb4
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diff --git a/tests_zemu/snapshots/sp-sign_basic_extra_fields/00003.png b/tests_zemu/snapshots/sp-sign_basic_extra_fields/00003.png
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index 00000000..a51f4624
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diff --git a/tests_zemu/snapshots/sp-sign_basic_extra_fields/00005.png b/tests_zemu/snapshots/sp-sign_basic_extra_fields/00005.png
new file mode 100644
index 00000000..1e4be699
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diff --git a/tests_zemu/snapshots/sp-sign_basic_extra_fields/00006.png b/tests_zemu/snapshots/sp-sign_basic_extra_fields/00006.png
new file mode 100644
index 00000000..430a37e8
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diff --git a/tests_zemu/snapshots/x-mainmenu/00004.png b/tests_zemu/snapshots/x-mainmenu/00004.png
index 16bb08a0..c0ce7660 100644
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diff --git a/tests_zemu/snapshots/x-mainmenu/00010.png b/tests_zemu/snapshots/x-mainmenu/00010.png
index 16bb08a0..c0ce7660 100644
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diff --git a/tests_zemu/snapshots/x-sign_basic_extra_fields/00000.png b/tests_zemu/snapshots/x-sign_basic_extra_fields/00000.png
new file mode 100644
index 00000000..50c23a06
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diff --git a/tests_zemu/snapshots/x-sign_basic_extra_fields/00001.png b/tests_zemu/snapshots/x-sign_basic_extra_fields/00001.png
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index 00000000..0f9cfb13
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diff --git a/tests_zemu/snapshots/x-sign_basic_extra_fields/00002.png b/tests_zemu/snapshots/x-sign_basic_extra_fields/00002.png
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index 00000000..b47dabb4
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diff --git a/tests_zemu/snapshots/x-sign_basic_extra_fields/00003.png b/tests_zemu/snapshots/x-sign_basic_extra_fields/00003.png
new file mode 100644
index 00000000..4e0f2906
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diff --git a/tests_zemu/snapshots/x-sign_basic_extra_fields/00004.png b/tests_zemu/snapshots/x-sign_basic_extra_fields/00004.png
new file mode 100644
index 00000000..a51f4624
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diff --git a/tests_zemu/snapshots/x-sign_basic_extra_fields/00005.png b/tests_zemu/snapshots/x-sign_basic_extra_fields/00005.png
new file mode 100644
index 00000000..1e4be699
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diff --git a/tests_zemu/snapshots/x-sign_basic_extra_fields/00006.png b/tests_zemu/snapshots/x-sign_basic_extra_fields/00006.png
new file mode 100644
index 00000000..430a37e8
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diff --git a/tests_zemu/tests/common.ts b/tests_zemu/tests/common.ts
index bdcf10ea..cd283595 100644
--- a/tests_zemu/tests/common.ts
+++ b/tests_zemu/tests/common.ts
@@ -163,3 +163,38 @@ export const example_tx_str_basic2 = {
   ],
   sequence: '6',
 }
+
+export const example_tx_str_basic_extra_fields = {
+  account_number: '108',
+  chain_id: 'cosmoshub-4',
+  extra_field: 'empty',
+  fee: {
+    amount: [
+      {
+        amount: '600',
+        denom: 'uatom',
+      },
+    ],
+    gas: '200000',
+  },
+  foo: 'bar',
+  memo: '',
+  msgs: [
+    {
+      type: 'cosmos-sdk/MsgWithdrawDelegationReward',
+      value: {
+        delegator_address: 'cosmos1w34k53py5v5xyluazqpq65agyajavep2rflq6h',
+        validator_address: 'cosmosvaloper1kn3wugetjuy4zetlq6wadchfhvu3x740ae6z6x',
+      },
+    },
+    {
+      type: 'cosmos-sdk/MsgWithdrawDelegationReward',
+      value: {
+        delegator_address: 'cosmos1w34k53py5v5xyluazqpq65agyajavep2rflq6h',
+        validator_address: 'cosmosvaloper1sjllsnramtg3ewxqwwrwjxfgc4n4ef9u2lcnj0',
+      },
+    },
+  ],
+  sequence: '106',
+  unknown_field: 123456
+}
diff --git a/tests_zemu/tests/standard.test.ts b/tests_zemu/tests/standard.test.ts
index e96eaabe..e9436a85 100644
--- a/tests_zemu/tests/standard.test.ts
+++ b/tests_zemu/tests/standard.test.ts
@@ -107,8 +107,7 @@ describe('Standard', function () {
       const respRequest = app.showAddressAndPubKey(path, 'cosmos')
       // Wait until we are not in the main menu
       await sim.waitUntilScreenIsNot(sim.getMainMenuSnapshot())
-
-      await sim.compareSnapshotsAndAccept('.', `${m.prefix.toLowerCase()}-show_address`, 2)
+      await sim.compareSnapshotsAndApprove('.', `${m.prefix.toLowerCase()}-show_address`)
 
       const resp = await respRequest
       console.log(resp)
@@ -161,9 +160,7 @@ describe('Standard', function () {
 
       // Wait until we are not in the main menu
       await sim.waitUntilScreenIsNot(sim.getMainMenuSnapshot())
-
-      // Now navigate the address / path
-      await sim.compareSnapshotsAndAccept('.', `${m.prefix.toLowerCase()}-show_address_huge`, 3)
+      await sim.compareSnapshotsAndApprove('.', `${m.prefix.toLowerCase()}-show_address_huge`)
 
       const resp = await respRequest
       console.log(resp)
@@ -201,9 +198,7 @@ describe('Standard', function () {
 
       // Wait until we are not in the main menu
       await sim.waitUntilScreenIsNot(sim.getMainMenuSnapshot())
-
-      // Now navigate the address / path
-      await sim.compareSnapshotsAndAccept('.', `${m.prefix.toLowerCase()}-sign_basic`, m.prefix == 'S' ? 6 : 5)
+      await sim.compareSnapshotsAndApprove('.', `${m.prefix.toLowerCase()}-sign_basic`)
 
       const resp = await signatureRequest
       console.log(resp)
@@ -248,15 +243,58 @@ describe('Standard', function () {
 
       // Wait until we are not in the main menu
       await sim.waitUntilScreenIsNot(sim.getMainMenuSnapshot())
+      await sim.compareSnapshotsAndApprove('.', `${m.prefix.toLowerCase()}-sign_basic2`)
+
+      const resp = await signatureRequest
+      console.log(resp)
 
-      // Now navigate the address / path
-      await sim.compareSnapshotsAndAccept('.', `${m.prefix.toLowerCase()}-sign_basic2`, m.prefix == 'S' ? 7 : 6)
+      expect(resp.return_code).toEqual(0x9000)
+      expect(resp.error_message).toEqual('No errors')
+
+      // Now verify the signature
+      const hash = crypto.createHash('sha256')
+      const msgHash = Uint8Array.from(hash.update(tx).digest())
+
+      const signatureDER = resp.signature
+      const signature = secp256k1.signatureImport(Uint8Array.from(signatureDER))
+
+      const pk = Uint8Array.from(respPk.compressed_pk)
+
+      const signatureOk = secp256k1.ecdsaVerify(signature, msgHash, pk)
+      expect(signatureOk).toEqual(true)
+    } finally {
+      await sim.close()
+    }
+  })
+
+  test.each(DEVICE_MODELS)('sign basic with extra fields', async function (m) {
+    const sim = new Zemu(m.path)
+    try {
+      await sim.start({ ...DEFAULT_OPTIONS, model: m.name })
+      const app = new CosmosApp(sim.getTransport())
+
+      const path = [44, 118, 0, 0, 0]
+      const tx = JSON.stringify(example_tx_str_basic)
+
+      // get address / publickey
+      const respPk = await app.getAddressAndPubKey(path, 'cosmos')
+      expect(respPk.return_code).toEqual(0x9000)
+      expect(respPk.error_message).toEqual('No errors')
+      console.log(respPk)
+
+      // do not wait here..
+      const signatureRequest = app.sign(path, tx)
+
+      // Wait until we are not in the main menu
+      await sim.waitUntilScreenIsNot(sim.getMainMenuSnapshot())
+      await sim.compareSnapshotsAndApprove('.', `${m.prefix.toLowerCase()}-sign_basic_extra_fields`)
 
       const resp = await signatureRequest
       console.log(resp)
 
       expect(resp.return_code).toEqual(0x9000)
       expect(resp.error_message).toEqual('No errors')
+      expect(resp).toHaveProperty('signature')
 
       // Now verify the signature
       const hash = crypto.createHash('sha256')