diff --git a/src/btchip_apdu_hash_sign.c b/src/btchip_apdu_hash_sign.c
index 8e006af9..286fd1b7 100644
--- a/src/btchip_apdu_hash_sign.c
+++ b/src/btchip_apdu_hash_sign.c
@@ -20,6 +20,7 @@
 #include "btchip_bagl_extensions.h"
 #include "btchip_display_variables.h"
 #include "ui.h"
+#include "ledger_assert.h"
 
 #define SIGHASH_ALL 0x01
 
@@ -169,11 +170,11 @@ void btchip_bagl_user_action_signtx(unsigned char confirming, unsigned char dire
     if (confirming) {
         unsigned char hash[32];
         if (btchip_context_D.usingOverwinter) {
-            cx_hash_no_throw(&btchip_context_D.transactionHashFull.blake2b.header, CX_LAST, hash, 0, hash, 32);
+            LEDGER_ASSERT(cx_hash_no_throw(&btchip_context_D.transactionHashFull.blake2b.header, CX_LAST, hash, 0, hash, 32) == CX_OK, "Hash Failed");
         }
         else {
-            cx_hash_no_throw(&btchip_context_D.transactionHashFull.sha256.header, CX_LAST,
-                hash, 0, hash, 32);
+            LEDGER_ASSERT(cx_hash_no_throw(&btchip_context_D.transactionHashFull.sha256.header, CX_LAST,
+                hash, 0, hash, 32) == CX_OK, "Hash Failed");
             PRINTF("Hash1\n%.*H\n", sizeof(hash), hash);
 
             // Rehash
diff --git a/src/btchip_helpers.c b/src/btchip_helpers.c
index 343ce74d..bbc020c8 100644
--- a/src/btchip_helpers.c
+++ b/src/btchip_helpers.c
@@ -19,6 +19,7 @@
 #include "btchip_apdu_constants.h"
 #include "lib_standard_app/crypto_helpers.h"
 #include "bip32_path.h"
+#include "ledger_assert.h"
 
 const unsigned char TRANSACTION_OUTPUT_SCRIPT_PRE[] = {
     0x19, 0x76, 0xA9,
@@ -215,7 +216,7 @@ void btchip_public_key_hash160(unsigned char *in, unsigned short inlen,
     unsigned char buffer[32];
     cx_hash_sha256(in, inlen, buffer, 32);
     cx_ripemd160_init(&riprip);
-    cx_hash_no_throw(&riprip.header, CX_LAST, buffer, 32, out, 20);
+    LEDGER_ASSERT(cx_hash_no_throw(&riprip.header, CX_LAST, buffer, 32, out, 20) == CX_OK, "hash160");
 }
 
 void btchip_compute_checksum(unsigned char* in, unsigned short inlen, unsigned char * output) {
diff --git a/src/btchip_transaction.c b/src/btchip_transaction.c
index 9cd29e61..f15fe553 100644
--- a/src/btchip_transaction.c
+++ b/src/btchip_transaction.c
@@ -18,6 +18,7 @@
 #include "btchip_internal.h"
 #include "btchip_apdu_constants.h"
 #include "btchip_display_variables.h"
+#include "ledger_assert.h"
 
 #define CONSENSUS_BRANCH_ID_OVERWINTER 0x5ba81b19
 #define CONSENSUS_BRANCH_ID_SAPLING 0x76b809bb
@@ -87,18 +88,18 @@ void transaction_offset(unsigned char value) {
     if ((btchip_context_D.transactionHashOption & TRANSACTION_HASH_FULL) != 0) {
         PRINTF("--- ADD TO HASH FULL:\n%.*H\n", value, btchip_context_D.transactionBufferPointer);
         if (btchip_context_D.usingOverwinter) {
-            cx_hash_no_throw(&btchip_context_D.transactionHashFull.blake2b.header, 0, btchip_context_D.transactionBufferPointer, value, NULL, 0);
+            LEDGER_ASSERT(cx_hash_no_throw(&btchip_context_D.transactionHashFull.blake2b.header, 0, btchip_context_D.transactionBufferPointer, value, NULL, 0) == CX_OK, "Hash Failed");
         }
         else {
-            cx_hash_no_throw(&btchip_context_D.transactionHashFull.sha256.header, 0,
-                btchip_context_D.transactionBufferPointer, value, NULL, 0);
+            LEDGER_ASSERT(cx_hash_no_throw(&btchip_context_D.transactionHashFull.sha256.header, 0,
+                btchip_context_D.transactionBufferPointer, value, NULL, 0) == CX_OK, "Hash Failed");
         }
     }
     if ((btchip_context_D.transactionHashOption &
          TRANSACTION_HASH_AUTHORIZATION) != 0) {
         PRINTF("--- ADD TO HASH AUTH:\n%.*H\n", value, btchip_context_D.transactionBufferPointer);
-        cx_hash_no_throw(&btchip_context_D.transactionHashAuthorization.header, 0,
-                btchip_context_D.transactionBufferPointer, value, NULL, 0);
+        LEDGER_ASSERT(cx_hash_no_throw(&btchip_context_D.transactionHashAuthorization.header, 0,
+                btchip_context_D.transactionBufferPointer, value, NULL, 0) == CX_OK, "Hash Failed");
     }
 }