diff --git a/fido2/ctaphid.c b/fido2/ctaphid.c
index 6d247c7..4ba3f09 100644
--- a/fido2/ctaphid.c
+++ b/fido2/ctaphid.c
@@ -16,6 +16,7 @@
 #include "util.h"
 #include "log.h"
 #include "extensions.h"
+#include "version.h"
 
 // move custom SHA512 command out,
 // and the following headers too
@@ -729,155 +730,7 @@ uint8_t ctaphid_handle_packet(uint8_t * pkt_raw)
             is_busy = 0;
         break;
 #endif
-#if defined(SOLO_HACKER) && (DEBUG_LEVEL > 0) && (!IS_BOOTLOADER == 1)
-        case CTAPHID_PROBE:
 
-            /*
-             * Expects CBOR-serialized data of the form
-             * {"subcommand": "hash_type", "data": b"the_data"}
-             * with hash_type in SHA256, SHA512
-             */
-
-            // some random logging
-            printf1(TAG_HID,"CTAPHID_PROBE\n");
-            // initialise CTAP response object
-            ctap_response_init(&ctap_resp);
-            // initialise write buffer
-            ctaphid_write_buffer_init(&wb);
-            wb.cid = cid;
-            wb.cmd = CTAPHID_PROBE;
-
-            // prepare parsing (or halt)
-            int ret;
-            CborParser parser;
-            CborValue it, map;
-            ret = cbor_parser_init(
-                ctap_buffer, (size_t) buffer_len(),
-                // strictly speaking, CTAP is not RFC canonical...
-                CborValidateCanonicalFormat,
-                &parser, &it);
-            check_hardcore(ret);
-
-            CborType type = cbor_value_get_type(&it);
-            if (type != CborMapType) exit(1);
-
-            ret = cbor_value_enter_container(&it,&map);
-            check_hardcore(ret);
-
-            size_t map_length = 0;
-            ret = cbor_value_get_map_length(&it, &map_length);
-            if (map_length != 2) exit(1);
-
-            // parse subcommand (or halt)
-            CborValue val;
-            ret = cbor_value_map_find_value(&it, "subcommand", &val);
-            check_hardcore(ret);
-            if (!cbor_value_is_text_string(&val))
-                exit(1);
-
-            int sha_version = 0;
-            bool found = false;
-            if (!found) {
-                ret = cbor_value_text_string_equals(
-                        &val, "SHA256", &found);
-                check_hardcore(ret);
-                if (found)
-                    sha_version = 256;
-            }
-            if (!found) {
-                ret = cbor_value_text_string_equals(
-                        &val, "SHA512", &found);
-                check_hardcore(ret);
-                if (found)
-                    sha_version = 512;
-            }
-            if (sha_version == 0)
-                exit(1);
-
-            // parse data (or halt)
-            ret = cbor_value_map_find_value(&it, "data", &val);
-            check_hardcore(ret);
-            if (!cbor_value_is_byte_string(&val))
-                exit(1);
-
-            size_t data_length = 0;
-            ret = cbor_value_calculate_string_length(&val, &data_length);
-            check_hardcore(ret);
-            if (data_length > 6*1024)
-                exit(1);
-
-            unsigned char data[6*1024];
-            ret = cbor_value_copy_byte_string (
-                    &val, &data[0], &data_length, &val);
-            check_hardcore(ret);
-
-            // execute subcommand
-            if (sha_version == 256) {
-                // calculate hash
-                crypto_sha256_init();
-                crypto_sha256_update(data, data_length);
-                crypto_sha256_final(ctap_buffer);
-                // write output
-                wb.bcnt = CF_SHA256_HASHSZ;  // 32 bytes
-                ctaphid_write(&wb, &ctap_buffer, CF_SHA256_HASHSZ);
-            }
-
-            if (sha_version == 512) {
-                // calculate hash
-                crypto_sha512_init();
-                crypto_sha512_update(data, data_length);
-                crypto_sha512_final(ctap_buffer);
-                // write output
-                wb.bcnt = CF_SHA512_HASHSZ;  // 64 bytes
-                ctaphid_write(&wb, &ctap_buffer, CF_SHA512_HASHSZ);
-            }
-
-            // finalize
-            ctaphid_write(&wb, NULL, 0);
-            is_busy = 0;
-        break;
-
-        /*
-        case CTAPHID_SHA256:
-            // some random logging
-            printf1(TAG_HID,"CTAPHID_SHA256\n");
-            // initialise CTAP response object
-            ctap_response_init(&ctap_resp);
-            // initialise write buffer
-            ctaphid_write_buffer_init(&wb);
-            wb.cid = cid;
-            wb.cmd = CTAPHID_SHA256;
-            wb.bcnt = CF_SHA256_HASHSZ;  // 32 bytes
-            // calculate hash
-            crypto_sha256_init();
-            crypto_sha256_update(ctap_buffer, buffer_len());
-            crypto_sha256_final(ctap_buffer);
-            // copy to output
-            ctaphid_write(&wb, &ctap_buffer, CF_SHA256_HASHSZ);
-            ctaphid_write(&wb, NULL, 0);
-            is_busy = 0;
-        break;
-        case CTAPHID_SHA512:
-            // some random logging
-            printf1(TAG_HID,"CTAPHID_SHA512\n");
-            // initialise CTAP response object
-            ctap_response_init(&ctap_resp);
-            // initialise write buffer
-            ctaphid_write_buffer_init(&wb);
-            wb.cid = cid;
-            wb.cmd = CTAPHID_SHA512;
-            wb.bcnt = CF_SHA512_HASHSZ;  // 64 bytes
-            // calculate hash
-            crypto_sha512_init();
-            crypto_sha512_update(ctap_buffer, buffer_len());
-            crypto_sha512_final(ctap_buffer);
-            // copy to output
-            ctaphid_write(&wb, &ctap_buffer, CF_SHA512_HASHSZ);
-            ctaphid_write(&wb, NULL, 0);
-            is_busy = 0;
-        break;
-        */
-#endif
         default:
             printf2(TAG_ERR,"error, unimplemented HID cmd: %02x\r\n", buffer_cmd());
             ctaphid_send_error(cid, CTAP1_ERR_INVALID_COMMAND);