diff --git a/app/Makefile.version b/app/Makefile.version
index 9f9c8bd3..5fbe479b 100644
--- a/app/Makefile.version
+++ b/app/Makefile.version
@@ -1,3 +1,3 @@
 APPVERSION_M=0
 APPVERSION_N=24
-APPVERSION_P=3
+APPVERSION_P=4
diff --git a/app/src/common/tx.c b/app/src/common/tx.c
index a6bc11d7..71cfb52b 100644
--- a/app/src/common/tx.c
+++ b/app/src/common/tx.c
@@ -23,7 +23,7 @@
 
 #if defined(TARGET_NANOX) || defined(TARGET_NANOS2) || defined(TARGET_STAX) || defined(TARGET_FLEX)
 #define RAM_BUFFER_SIZE 8192
-#define FLASH_BUFFER_SIZE 16384
+#define FLASH_BUFFER_SIZE (85 * 1024)
 #elif defined(TARGET_NANOS)
 #define RAM_BUFFER_SIZE 0
 #define FLASH_BUFFER_SIZE 8192
diff --git a/deps/ledger-zxlib b/deps/ledger-zxlib
index 271f40ce..33f5c38d 160000
--- a/deps/ledger-zxlib
+++ b/deps/ledger-zxlib
@@ -1 +1 @@
-Subproject commit 271f40ce03219eac8396a309ce9704977cf59caa
+Subproject commit 33f5c38d8153534cf572d1ca7a7e09be7d55058b
diff --git a/tests_zemu/snapshots/fl-mainmenu/00004.png b/tests_zemu/snapshots/fl-mainmenu/00004.png
index 6349dfb5..8da83c6c 100644
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diff --git a/tests_zemu/snapshots/s-mainmenu/00004.png b/tests_zemu/snapshots/s-mainmenu/00004.png
index d2daa378..222e09f8 100644
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diff --git a/tests_zemu/snapshots/s-mainmenu/00010.png b/tests_zemu/snapshots/s-mainmenu/00010.png
index d2daa378..222e09f8 100644
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diff --git a/tests_zemu/snapshots/sp-mainmenu/00004.png b/tests_zemu/snapshots/sp-mainmenu/00004.png
index 85466962..d8ed08de 100644
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diff --git a/tests_zemu/snapshots/sp-mainmenu/00010.png b/tests_zemu/snapshots/sp-mainmenu/00010.png
index 85466962..d8ed08de 100644
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diff --git a/tests_zemu/snapshots/st-call_with_string_args/00002.png b/tests_zemu/snapshots/st-call_with_string_args/00002.png
index 71d19039..b32bb218 100644
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diff --git a/tests_zemu/snapshots/st-mainmenu/00004.png b/tests_zemu/snapshots/st-mainmenu/00004.png
index 6f75ad9d..e868434a 100644
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diff --git a/tests_zemu/snapshots/st-sign_standard_contract_call_tx/00002.png b/tests_zemu/snapshots/st-sign_standard_contract_call_tx/00002.png
index 4cbac972..319d68e6 100644
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diff --git a/tests_zemu/snapshots/x-mainmenu/00004.png b/tests_zemu/snapshots/x-mainmenu/00004.png
index 85466962..d8ed08de 100644
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diff --git a/tests_zemu/snapshots/x-mainmenu/00010.png b/tests_zemu/snapshots/x-mainmenu/00010.png
index 85466962..d8ed08de 100644
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