diff --git a/app/Makefile.version b/app/Makefile.version
index 0fbc5027..9a7af6d4 100644
--- a/app/Makefile.version
+++ b/app/Makefile.version
@@ -3,4 +3,4 @@ APPVERSION_M=1
 # This is the `spec_version` field of `Runtime`
 APPVERSION_N=0
 # This is the patch version of this release
-APPVERSION_P=5
+APPVERSION_P=6
diff --git a/app/src/parser_impl.c b/app/src/parser_impl.c
index c8178d4f..0d08f7b0 100644
--- a/app/src/parser_impl.c
+++ b/app/src/parser_impl.c
@@ -38,6 +38,18 @@ parser_error_t _read(parser_context_t *ctx, parser_tx_t *v) {
     return parser_ok;
 }
 
+bool hasMemoToPrint(const parser_context_t *ctx) {
+    // Check if memoSection exists and has a commitmentDiscriminant
+    if ((ctx->tx_obj->transaction.header.memoSection != NULL && 
+        ctx->tx_obj->transaction.header.memoSection->commitmentDiscriminant && 
+        ctx->tx_obj->transaction.header.memoSection->bytes.len != 0) ||
+        (ctx->tx_obj->transaction.header.memoSection != NULL && ctx->tx_obj->transaction.header.memoSection->commitmentDiscriminant == 0)) {
+        
+        return true; // Memo is available to print
+    }
+    return false; // No memo to print
+}
+
 parser_error_t getNumItems(const parser_context_t *ctx, uint8_t *numItems) {
     *numItems = 0;
     switch (ctx->tx_obj->typeTx) {
@@ -197,8 +209,8 @@ parser_error_t getNumItems(const parser_context_t *ctx, uint8_t *numItems) {
             break;
     }
 
-    if (ctx->tx_obj->transaction.header.memoSection != NULL) {
-      (*numItems)++;
+    if (hasMemoToPrint(ctx)) {
+        (*numItems)++;
     }
 
     if(app_mode_expert() && ctx->tx_obj->transaction.header.fees.symbol == NULL) {
diff --git a/app/src/parser_impl.h b/app/src/parser_impl.h
index eb322f56..33f524a9 100644
--- a/app/src/parser_impl.h
+++ b/app/src/parser_impl.h
@@ -26,7 +26,7 @@ extern "C" {
 
 parser_error_t _read(parser_context_t *c, parser_tx_t *v);
 parser_error_t getNumItems(const parser_context_t *ctx, uint8_t *numItems);
-
+bool hasMemoToPrint(const parser_context_t *ctx);
 #ifdef __cplusplus
 }
 #endif
diff --git a/app/src/parser_print_txn.c b/app/src/parser_print_txn.c
index 73e4d4af..5822a20e 100644
--- a/app/src/parser_print_txn.c
+++ b/app/src/parser_print_txn.c
@@ -24,6 +24,7 @@
 #include "parser_address.h"
 #include "bech32_encoding.h"
 #include "crypto_helper.h"
+#include "parser_impl.h"
 
 #include "txn_delegation.h"
 
@@ -37,7 +38,7 @@ static parser_error_t printBondTxn( const parser_context_t *ctx,
     if (ctx->tx_obj->bond.has_source == 0 && displayIdx >= 1) {
         displayIdx++;
     }
-    const bool hasMemo = ctx->tx_obj->transaction.header.memoSection != NULL;
+    const bool hasMemo = hasMemoToPrint(ctx);
     if (displayIdx >= 4 && !hasMemo) {
         displayIdx++;
     }
@@ -90,7 +91,7 @@ static parser_error_t printResignSteward( const parser_context_t *ctx,
                                         char *outKey, uint16_t outKeyLen,
                                         char *outVal, uint16_t outValLen,
                                         uint8_t pageIdx, uint8_t *pageCount) {
-    const bool hasMemo = ctx->tx_obj->transaction.header.memoSection != NULL;
+    const bool hasMemo = hasMemoToPrint(ctx);
     if (displayIdx >= 2 && !hasMemo) {
         displayIdx++;
     }
@@ -413,7 +414,7 @@ static parser_error_t printInitAccountTxn(  const parser_context_t *ctx,
                 ? pubkeys_first_field_idx
                 : displayIdx - pubkeys_num + 1);
 
-    const bool hasMemo = ctx->tx_obj->transaction.header.memoSection != NULL;
+    const bool hasMemo = hasMemoToPrint(ctx);
     if (adjustedDisplayIdx >= 4 && !hasMemo) {
         adjustedDisplayIdx++;
     }
@@ -505,7 +506,7 @@ static parser_error_t printInitProposalTxn(  const parser_context_t *ctx,
     if (displayIdx >= 1 + proposalElements) {
         adjustedIdx = displayIdx - proposalElements + 1;
     }
-    const bool hasMemo = ctx->tx_obj->transaction.header.memoSection != NULL;
+    const bool hasMemo = hasMemoToPrint(ctx);
     if (adjustedIdx >= 7 && !hasMemo) {
         adjustedIdx++;
     }
@@ -581,7 +582,7 @@ static parser_error_t printVoteProposalTxn(  const parser_context_t *ctx,
                                              uint8_t pageIdx, uint8_t *pageCount) {
     tx_vote_proposal_t *voteProposal = &ctx->tx_obj->voteProposal;
 
-    const bool hasMemo = ctx->tx_obj->transaction.header.memoSection != NULL;
+    const bool hasMemo = hasMemoToPrint(ctx);
     if (displayIdx >= 4 && !hasMemo) {
         displayIdx++;
     }
@@ -648,7 +649,7 @@ static parser_error_t printRevealPubkeyTxn(  const parser_context_t *ctx,
                                             char *outVal, uint16_t outValLen,
                                             uint8_t pageIdx, uint8_t *pageCount) {
 
-    const bool hasMemo = ctx->tx_obj->transaction.header.memoSection != NULL;
+    const bool hasMemo = hasMemoToPrint(ctx);
     if (displayIdx >= 2 && !hasMemo) {
         displayIdx++;
     }
@@ -687,7 +688,7 @@ static parser_error_t printChangeConsensusKeyTxn( const parser_context_t *ctx,
                                         char *outKey, uint16_t outKeyLen,
                                         char *outVal, uint16_t outValLen,
                                                   uint8_t pageIdx, uint8_t *pageCount) {
-    const bool hasMemo = ctx->tx_obj->transaction.header.memoSection != NULL;
+    const bool hasMemo = hasMemoToPrint(ctx);
     if (displayIdx >= 3 && !hasMemo) {
         displayIdx++;
     }
@@ -729,7 +730,7 @@ static parser_error_t printUnjailValidatorTxn(const parser_context_t *ctx,
                                             char *outKey, uint16_t outKeyLen,
                                             char *outVal, uint16_t outValLen,
                                             uint8_t pageIdx, uint8_t *pageCount) {
-    const bool hasMemo = ctx->tx_obj->transaction.header.memoSection != NULL;
+    const bool hasMemo = hasMemoToPrint(ctx);
     if (displayIdx >= 2 && !hasMemo) {
         displayIdx++;
     }
@@ -766,7 +767,7 @@ static parser_error_t printActivateValidator(const parser_context_t *ctx,
                                             char *outKey, uint16_t outKeyLen,
                                             char *outVal, uint16_t outValLen,
                                             uint8_t pageIdx, uint8_t *pageCount) {
-    const bool hasMemo = ctx->tx_obj->transaction.header.memoSection != NULL;
+    const bool hasMemo = hasMemoToPrint(ctx);
     if (displayIdx >= 2 && !hasMemo) {
         displayIdx++;
     }
@@ -916,7 +917,7 @@ static parser_error_t printBecomeValidatorTxn(  const parser_context_t *ctx,
         displayIdx++;
     }
 
-    const bool hasMemo = ctx->tx_obj->transaction.header.memoSection != NULL;
+    const bool hasMemo = hasMemoToPrint(ctx);
     if (displayIdx >= 14 && !hasMemo) {
         displayIdx++;
     }
@@ -1033,7 +1034,7 @@ static parser_error_t printWithdrawTxn( const parser_context_t *ctx,
     if (ctx->tx_obj->withdraw.has_source == 0 && displayIdx >= 1) {
         displayIdx++;
     }
-    const bool hasMemo = ctx->tx_obj->transaction.header.memoSection != NULL;
+    const bool hasMemo = hasMemoToPrint(ctx);
     if (displayIdx >= 3 && !hasMemo) {
         displayIdx++;
     }
@@ -1084,7 +1085,7 @@ static parser_error_t printCommissionChangeTxn( const parser_context_t *ctx,
                                                 char *outVal, uint16_t outValLen,
                                                 uint8_t pageIdx, uint8_t *pageCount) {
 
-    const bool hasMemo = ctx->tx_obj->transaction.header.memoSection != NULL;
+    const bool hasMemo = hasMemoToPrint(ctx);
     if (displayIdx >= 3 && !hasMemo) {
         displayIdx++;
     }
@@ -1769,7 +1770,7 @@ static parser_error_t printUpdateStewardCommission( const parser_context_t *ctx,
         return parser_display_idx_out_of_range;
     }
     // displayIdx will be greater than the right part. No underflow
-    const bool hasMemo = ctx->tx_obj->transaction.header.memoSection != NULL;
+    const bool hasMemo = hasMemoToPrint(ctx);
     const uint8_t adjustedDisplayIdx  = displayIdx - 2 - (2 * updateStewardCommission->commissionLen) - (hasMemo ? 1 : 0);
     return printExpert(ctx, adjustedDisplayIdx, outKey, outKeyLen, outVal, outValLen, pageIdx, pageCount);
 }
@@ -1804,7 +1805,7 @@ static parser_error_t printChangeValidatorMetadata(  const parser_context_t *ctx
         displayIdx++;
     }
 
-    const bool hasMemo = ctx->tx_obj->transaction.header.memoSection != NULL;
+    const bool hasMemo = hasMemoToPrint(ctx);
     if (displayIdx >= 9 && !hasMemo) {
         displayIdx++;
     }
@@ -1882,7 +1883,7 @@ static parser_error_t printBridgePoolTransfer(  const parser_context_t *ctx,
 
     tx_bridge_pool_transfer_t *bridgePoolTransfer = &ctx->tx_obj->bridgePoolTransfer;
     char tmpBuffer[45] = {0};
-    const bool hasMemo = ctx->tx_obj->transaction.header.memoSection != NULL;
+    const bool hasMemo = hasMemoToPrint(ctx);
     if (displayIdx >= 9 && !hasMemo) {
         displayIdx++;
     }
diff --git a/deps/ledger-zxlib b/deps/ledger-zxlib
index eebf9d53..bca1c75a 160000
--- a/deps/ledger-zxlib
+++ b/deps/ledger-zxlib
@@ -1 +1 @@
-Subproject commit eebf9d533a497f01e60f7a6f8bd5465b1379882c
+Subproject commit bca1c75a00f2a6f7dd55ef64da1abeb0f1701c61
diff --git a/tests_zemu/package.json b/tests_zemu/package.json
index b5252a72..84c220b7 100644
--- a/tests_zemu/package.json
+++ b/tests_zemu/package.json
@@ -20,28 +20,28 @@
   },
   "dependencies": {
     "@zondax/ledger-namada": "../js",
-    "@zondax/zemu": "^0.51.0"
+    "@zondax/zemu": "^0.53.0"
   },
   "devDependencies": {
     "@types/jest": "^29.5.14",
     "@types/ledgerhq__hw-transport": "^4.21.6",
-    "@typescript-eslint/eslint-plugin": "^8.12.2",
-    "@typescript-eslint/parser": "^8.12.2",
+    "@typescript-eslint/eslint-plugin": "^8.17.0",
+    "@typescript-eslint/parser": "^8.17.0",
     "blakejs": "^1.1.1",
     "crypto-js": "4.2.0",
     "ed25519-supercop": "^2.0.1",
-    "eslint": "^9.13.0",
+    "eslint": "^9.16.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-import": "^2.31.0",
-    "eslint-plugin-jest": "^28.8.3",
+    "eslint-plugin-jest": "^28.9.0",
     "eslint-plugin-prettier": "^5.2.1",
     "jest": "29.7.0",
     "js-sha256": "0.11.0",
     "jssha": "^3.3.1",
     "leb128": "^0.0.5",
-    "prettier": "^3.3.3",
+    "prettier": "^3.4.2",
     "ts-jest": "^29.2.5",
     "ts-node": "^10.9.2",
-    "typescript": "^5.6.3"
+    "typescript": "^5.7.2"
   }
 }
diff --git a/tests_zemu/snapshots/fl-mainmenu/00004.png b/tests_zemu/snapshots/fl-mainmenu/00004.png
index b1f1c180..6e88af29 100644
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diff --git a/tests_zemu/snapshots/fl-sign-empty-memo/00000.png b/tests_zemu/snapshots/fl-sign-empty-memo/00000.png
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diff --git a/tests_zemu/tests/common.ts b/tests_zemu/tests/common.ts
index 8205dedd..d2bc7853 100644
--- a/tests_zemu/tests/common.ts
+++ b/tests_zemu/tests/common.ts
@@ -50,3 +50,5 @@ export const defaultOptions = {
   custom: `-s "${APP_SEED}"`,
   X11: false,
 }
+
+export const tx_empty_memo = '1e0000006c6f63616c2e3630646637376431616663346631643138326232356438370123000000323032342d31322d30335431393a31373a33372e3330333030303030302b30303a303023000000323032342d31322d30335431383a31373a33372e3330333030303030302b30303a30300100000023b071cddbb7e3d2d2dbbdc9577f433874802b0b5a84d0d6b89e7e68299223f81c4f4de107bb6045e0f23df4687b22246ab12d76d35438a0c877ed01b3b79fa6e0532400bbdfbc8c62c25bcc96b24b6128d6cf0ba65b6ab868c1ce03f3096ce900010a00000000000000000000000000000000000000000000000000000000000000060083ee299bfa3030ccb27effeb8d63f150a7292dcc0039c1a4bea74c320ab04be5b218369d8c1ae21e41f27edee173ce5e6a51015a4da086010000000000030000000169e9310fc72944fd0100000000000203985877af1c57d700fb27556dd0ea5088a633a6be175f9692b0e82f2f0c60f191a6844f87f6387ea3011100000074785f72657665616c5f706b2e7761736d0081e8b658f1422a25210000000039c1a4bea74c320ab04be5b218369d8c1ae21e41f27edee173ce5e6a51015a4d';
diff --git a/tests_zemu/tests/transactions.test.ts b/tests_zemu/tests/transactions.test.ts
index af9359f4..b29494ac 100644
--- a/tests_zemu/tests/transactions.test.ts
+++ b/tests_zemu/tests/transactions.test.ts
@@ -16,7 +16,7 @@
 
 import Zemu from '@zondax/zemu'
 import { NamadaApp, Signature } from '@zondax/ledger-namada'
-import { models, hdpath, defaultOptions } from './common'
+import { models, hdpath, defaultOptions, tx_empty_memo } from './common'
 import { hashSignatureSec } from './utils'
 
 // @ts-ignore
@@ -165,4 +165,26 @@ describe.each(models)('Transactions', function (m) {
       await sim.close()
     }
   })
+
+  test.concurrent('Sign transaction with empty memo', async function () {
+    const sim = new Zemu(m.path)
+    try {
+      await sim.start({ ...defaultOptions, model: m.name })
+      const app = new NamadaApp(sim.getTransport())
+
+      const resp_addr = await app.getAddressAndPubKey(hdpath)
+
+      const respRequest = app.sign(hdpath, Buffer.from(tx_empty_memo, 'hex'))
+      await sim.waitUntilScreenIsNot(sim.getMainMenuSnapshot(), 20000)
+      await sim.compareSnapshotsAndApprove('.', `${m.prefix.toLowerCase()}-sign-empty-memo`)
+
+      const resp = await respRequest
+
+      expect(resp.returnCode).toEqual(0x9000)
+      expect(resp.errorMessage).toEqual('No errors')
+      expect(resp).toHaveProperty('signature')
+    } finally {
+      await sim.close()
+    }
+  })
 })