diff --git a/src/device/device_ledger.cpp b/src/device/device_ledger.cpp
index cbfca6c56..b89fb0827 100644
--- a/src/device/device_ledger.cpp
+++ b/src/device/device_ledger.cpp
@@ -567,6 +567,7 @@ namespace hw {
         }
       
         #ifdef DEBUG_HWDEVICE
+        send_simple(INS_GET_KEY, 0x04);
         memmove(dbg_viewkey.data, this->buffer_recv+0, 32);
         memmove(dbg_spendkey.data, this->buffer_recv+32, 32);
         #endif
@@ -1300,6 +1301,7 @@ namespace hw {
       log_hexbuffer("GENERATE_TX_PROOF: **r**   ", sig.r.data, sizeof( sig.r.data));
 
       this->controle_device->generate_tx_proof(prefix_hash_x, R_x, A_x, B_x, D_x, r_x, sig_x);      
+      MDEBUG("FAIL is normal if random is not fixed in proof");
       hw::ledger::check32("generate_tx_proof", "c", sig_x.c.data, sig.c.data);
       hw::ledger::check32("generate_tx_proof", "r", sig_x.r.data, sig.r.data);