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This commit is contained in:
Philippe Teuwen 2019-07-24 00:52:24 +02:00
commit c0eb19acb1
19 changed files with 1480 additions and 1447 deletions
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96
armsrc/mifaresim.c
View file

@ -42,30 +42,36 @@ static bool IsTrailerAccessAllowed(uint8_t blockNo, uint8_t keytype, uint8_t act
| ((sector_trailer[8] >> 7) & 0x01); | ((sector_trailer[8] >> 7) & 0x01);
switch (action) { switch (action) {
case AC_KEYA_READ: { case AC_KEYA_READ: {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("IsTrailerAccessAllowed: AC_KEYA_READ"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("IsTrailerAccessAllowed: AC_KEYA_READ");
return false; return false;
} }
case AC_KEYA_WRITE: { case AC_KEYA_WRITE: {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("IsTrailerAccessAllowed: AC_KEYA_WRITE"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("IsTrailerAccessAllowed: AC_KEYA_WRITE");
return ((keytype == AUTHKEYA && (AC == 0x00 || AC == 0x01)) return ((keytype == AUTHKEYA && (AC == 0x00 || AC == 0x01))
|| (keytype == AUTHKEYB && (AC == 0x04 || AC == 0x03))); || (keytype == AUTHKEYB && (AC == 0x04 || AC == 0x03)));
} }
case AC_KEYB_READ: { case AC_KEYB_READ: {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("IsTrailerAccessAllowed: AC_KEYB_READ"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("IsTrailerAccessAllowed: AC_KEYB_READ");
return (keytype == AUTHKEYA && (AC == 0x00 || AC == 0x02 || AC == 0x01)); return (keytype == AUTHKEYA && (AC == 0x00 || AC == 0x02 || AC == 0x01));
} }
case AC_KEYB_WRITE: { case AC_KEYB_WRITE: {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("IsTrailerAccessAllowed: AC_KEYB_WRITE"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("IsTrailerAccessAllowed: AC_KEYB_WRITE");
return ((keytype == AUTHKEYA && (AC == 0x00 || AC == 0x01)) return ((keytype == AUTHKEYA && (AC == 0x00 || AC == 0x01))
|| (keytype == AUTHKEYB && (AC == 0x04 || AC == 0x03))); || (keytype == AUTHKEYB && (AC == 0x04 || AC == 0x03)));
} }
case AC_AC_READ: { case AC_AC_READ: {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("IsTrailerAccessAllowed: AC_AC_READ"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("IsTrailerAccessAllowed: AC_AC_READ");
return ((keytype == AUTHKEYA) return ((keytype == AUTHKEYA)
|| (keytype == AUTHKEYB && !(AC == 0x00 || AC == 0x02 || AC == 0x01))); || (keytype == AUTHKEYB && !(AC == 0x00 || AC == 0x02 || AC == 0x01)));
} }
case AC_AC_WRITE: { case AC_AC_WRITE: {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("IsTrailerAccessAllowed: AC_AC_WRITE"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("IsTrailerAccessAllowed: AC_AC_WRITE");
return ((keytype == AUTHKEYA && (AC == 0x01)) return ((keytype == AUTHKEYA && (AC == 0x01))
|| (keytype == AUTHKEYB && (AC == 0x03 || AC == 0x05))); || (keytype == AUTHKEYB && (AC == 0x03 || AC == 0x05)));
} }
@ -93,46 +99,54 @@ static bool IsDataAccessAllowed(uint8_t blockNo, uint8_t keytype, uint8_t action
AC = ((sector_trailer[7] >> 2) & 0x04) AC = ((sector_trailer[7] >> 2) & 0x04)
| ((sector_trailer[8] << 1) & 0x02) | ((sector_trailer[8] << 1) & 0x02)
| ((sector_trailer[8] >> 4) & 0x01); | ((sector_trailer[8] >> 4) & 0x01);
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("IsDataAccessAllowed: case 0x00 - %02x", AC); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("IsDataAccessAllowed: case 0x00 - %02x", AC);
break; break;
} }
case 0x01: { case 0x01: {
AC = ((sector_trailer[7] >> 3) & 0x04) AC = ((sector_trailer[7] >> 3) & 0x04)
| ((sector_trailer[8] >> 0) & 0x02) | ((sector_trailer[8] >> 0) & 0x02)
| ((sector_trailer[8] >> 5) & 0x01); | ((sector_trailer[8] >> 5) & 0x01);
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("IsDataAccessAllowed: case 0x01 - %02x", AC); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("IsDataAccessAllowed: case 0x01 - %02x", AC);
break; break;
} }
case 0x02: { case 0x02: {
AC = ((sector_trailer[7] >> 4) & 0x04) AC = ((sector_trailer[7] >> 4) & 0x04)
| ((sector_trailer[8] >> 1) & 0x02) | ((sector_trailer[8] >> 1) & 0x02)
| ((sector_trailer[8] >> 6) & 0x01); | ((sector_trailer[8] >> 6) & 0x01);
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("IsDataAccessAllowed: case 0x02 - %02x", AC); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("IsDataAccessAllowed: case 0x02 - %02x", AC);
break; break;
} }
default: default:
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("IsDataAccessAllowed: Error"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("IsDataAccessAllowed: Error");
return false; return false;
} }
switch (action) { switch (action) {
case AC_DATA_READ: { case AC_DATA_READ: {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("IsDataAccessAllowed - AC_DATA_READ: OK"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("IsDataAccessAllowed - AC_DATA_READ: OK");
return ((keytype == AUTHKEYA && !(AC == 0x03 || AC == 0x05 || AC == 0x07)) return ((keytype == AUTHKEYA && !(AC == 0x03 || AC == 0x05 || AC == 0x07))
|| (keytype == AUTHKEYB && !(AC == 0x07))); || (keytype == AUTHKEYB && !(AC == 0x07)));
} }
case AC_DATA_WRITE: { case AC_DATA_WRITE: {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("IsDataAccessAllowed - AC_DATA_WRITE: OK"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("IsDataAccessAllowed - AC_DATA_WRITE: OK");
return ((keytype == AUTHKEYA && (AC == 0x00)) return ((keytype == AUTHKEYA && (AC == 0x00))
|| (keytype == AUTHKEYB && (AC == 0x00 || AC == 0x04 || AC == 0x06 || AC == 0x03))); || (keytype == AUTHKEYB && (AC == 0x00 || AC == 0x04 || AC == 0x06 || AC == 0x03)));
} }
case AC_DATA_INC: { case AC_DATA_INC: {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("IsDataAccessAllowed - AC_DATA_INC: OK"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("IsDataAccessAllowed - AC_DATA_INC: OK");
return ((keytype == AUTHKEYA && (AC == 0x00)) return ((keytype == AUTHKEYA && (AC == 0x00))
|| (keytype == AUTHKEYB && (AC == 0x00 || AC == 0x06))); || (keytype == AUTHKEYB && (AC == 0x00 || AC == 0x06)));
} }
case AC_DATA_DEC_TRANS_REST: { case AC_DATA_DEC_TRANS_REST: {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("AC_DATA_DEC_TRANS_REST: OK"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("AC_DATA_DEC_TRANS_REST: OK");
return ((keytype == AUTHKEYA && (AC == 0x00 || AC == 0x06 || AC == 0x01)) return ((keytype == AUTHKEYA && (AC == 0x00 || AC == 0x06 || AC == 0x01))
|| (keytype == AUTHKEYB && (AC == 0x00 || AC == 0x06 || AC == 0x01))); || (keytype == AUTHKEYB && (AC == 0x00 || AC == 0x06 || AC == 0x01)));
} }
@ -257,7 +271,8 @@ static bool MifareSimInit(uint16_t flags, uint8_t *datain, tag_response_info_t *
if ((flags & FLAG_4B_UID_IN_DATA) == FLAG_4B_UID_IN_DATA) { // get UID from datain if ((flags & FLAG_4B_UID_IN_DATA) == FLAG_4B_UID_IN_DATA) { // get UID from datain
memcpy(rUIDBCC1, datain, 4); memcpy(rUIDBCC1, datain, 4);
*uid_len = 4; *uid_len = 4;
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("MifareSimInit - FLAG_4B_UID_IN_DATA => Get UID from datain: %02X - Flag: %02X - UIDBCC1: %02X", FLAG_4B_UID_IN_DATA, flags, rUIDBCC1); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("MifareSimInit - FLAG_4B_UID_IN_DATA => Get UID from datain: %02X - Flag: %02X - UIDBCC1: %02X", FLAG_4B_UID_IN_DATA, flags, rUIDBCC1);
// save CUID // save CUID
@ -275,7 +290,8 @@ static bool MifareSimInit(uint16_t flags, uint8_t *datain, tag_response_info_t *
memcpy(&rUIDBCC1[1], datain, 3); memcpy(&rUIDBCC1[1], datain, 3);
memcpy(rUIDBCC2, datain + 3, 4); memcpy(rUIDBCC2, datain + 3, 4);
*uid_len = 7; *uid_len = 7;
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("MifareSimInit - FLAG_7B_UID_IN_DATA => Get UID from datain: %02X - Flag: %02X - UIDBCC1: %02X", FLAG_7B_UID_IN_DATA, flags, rUIDBCC1); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("MifareSimInit - FLAG_7B_UID_IN_DATA => Get UID from datain: %02X - Flag: %02X - UIDBCC1: %02X", FLAG_7B_UID_IN_DATA, flags, rUIDBCC1);
// save CUID // save CUID
*cuid = bytes_to_num(rUIDBCC2, 4); *cuid = bytes_to_num(rUIDBCC2, 4);
@ -297,7 +313,8 @@ static bool MifareSimInit(uint16_t flags, uint8_t *datain, tag_response_info_t *
memcpy(&rUIDBCC2[1], datain + 3, 3); memcpy(&rUIDBCC2[1], datain + 3, 3);
memcpy(rUIDBCC3, datain + 6, 4); memcpy(rUIDBCC3, datain + 6, 4);
*uid_len = 10; *uid_len = 10;
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("MifareSimInit - FLAG_10B_UID_IN_DATA => Get UID from datain: %02X - Flag: %02X - UIDBCC1: %02X", FLAG_10B_UID_IN_DATA, flags, rUIDBCC1); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("MifareSimInit - FLAG_10B_UID_IN_DATA => Get UID from datain: %02X - Flag: %02X - UIDBCC1: %02X", FLAG_10B_UID_IN_DATA, flags, rUIDBCC1);
// save CUID // save CUID
*cuid = bytes_to_num(rUIDBCC3, 4); *cuid = bytes_to_num(rUIDBCC3, 4);
@ -520,18 +537,21 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain) {
if (res == 2) { //Field is off! if (res == 2) { //Field is off!
LEDsoff(); LEDsoff();
cardSTATE = MFEMUL_NOFIELD; cardSTATE = MFEMUL_NOFIELD;
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("cardSTATE = MFEMUL_NOFIELD"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("cardSTATE = MFEMUL_NOFIELD");
continue; continue;
} else if (res == 1) { // button pressed } else if (res == 1) { // button pressed
button_pushed = true; button_pushed = true;
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("Button pressed"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("Button pressed");
break; break;
} }
// WUPA in HALTED state or REQA or WUPA in any other state // WUPA in HALTED state or REQA or WUPA in any other state
if (receivedCmd_len == 1 && ((receivedCmd[0] == ISO14443A_CMD_REQA && cardSTATE != MFEMUL_HALTED) || receivedCmd[0] == ISO14443A_CMD_WUPA)) { if (receivedCmd_len == 1 && ((receivedCmd[0] == ISO14443A_CMD_REQA && cardSTATE != MFEMUL_HALTED) || receivedCmd[0] == ISO14443A_CMD_WUPA)) {
selTimer = GetTickCount(); selTimer = GetTickCount();
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("EmSendPrecompiledCmd(&responses[ATQA]);"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("EmSendPrecompiledCmd(&responses[ATQA]);");
EmSendPrecompiledCmd(&responses[ATQA]); EmSendPrecompiledCmd(&responses[ATQA]);
// init crypto block // init crypto block
@ -550,12 +570,15 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain) {
switch (cardSTATE) { switch (cardSTATE) {
case MFEMUL_NOFIELD: case MFEMUL_NOFIELD:
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("MFEMUL_NOFIELD"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("MFEMUL_NOFIELD");
case MFEMUL_HALTED: case MFEMUL_HALTED:
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("MFEMUL_HALTED"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("MFEMUL_HALTED");
case MFEMUL_IDLE: { case MFEMUL_IDLE: {
LogTrace(uart->output, uart->len, uart->startTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->endTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->parity, true); LogTrace(uart->output, uart->len, uart->startTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->endTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->parity, true);
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("MFEMUL_IDLE"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("MFEMUL_IDLE");
break; break;
} }
@ -649,7 +672,8 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain) {
// WORK // WORK
case MFEMUL_WORK: { case MFEMUL_WORK: {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("[MFEMUL_WORK] Enter in case"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("[MFEMUL_WORK] Enter in case");
if (receivedCmd_len == 0) { if (receivedCmd_len == 0) {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("[MFEMUL_WORK] NO CMD received"); if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("[MFEMUL_WORK] NO CMD received");
@ -898,7 +922,8 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain) {
LED_C_OFF(); LED_C_OFF();
cardSTATE = MFEMUL_HALTED; cardSTATE = MFEMUL_HALTED;
cardAUTHKEY = AUTHKEYNONE; cardAUTHKEY = AUTHKEYNONE;
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("[MFEMUL_WORK] cardSTATE = MFEMUL_HALTED"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("[MFEMUL_WORK] cardSTATE = MFEMUL_HALTED");
break; break;
} }
@ -911,10 +936,12 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain) {
EmSendCmdPar(response, rats_len, response_par); EmSendCmdPar(response, rats_len, response_par);
} else } else
EmSendCmd(rats, rats_len); EmSendCmd(rats, rats_len);
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("[MFEMUL_WORK] RCV RATS => ACK"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("[MFEMUL_WORK] RCV RATS => ACK");
} else { } else {
EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA) : CARD_NACK_NA); EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA) : CARD_NACK_NA);
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("[MFEMUL_WORK] RCV RATS => NACK"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("[MFEMUL_WORK] RCV RATS => NACK");
} }
break; break;
} }
@ -929,28 +956,33 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t *datain) {
EmSendCmdPar(response, receivedCmd_len, response_par); EmSendCmdPar(response, receivedCmd_len, response_par);
} else } else
EmSendCmd(receivedCmd_dec, receivedCmd_len); EmSendCmd(receivedCmd_dec, receivedCmd_len);
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("[MFEMUL_WORK] RCV NXP DESELECT => ACK"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("[MFEMUL_WORK] RCV NXP DESELECT => ACK");
} else { } else {
EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA) : CARD_NACK_NA); EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA) : CARD_NACK_NA);
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("[MFEMUL_WORK] RCV NXP DESELECT => NACK"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("[MFEMUL_WORK] RCV NXP DESELECT => NACK");
} }
break; break;
} }
// case MFEMUL_WORK => command not allowed // case MFEMUL_WORK => command not allowed
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("Received command not allowed, nacking"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("Received command not allowed, nacking");
EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA) : CARD_NACK_NA); EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA) : CARD_NACK_NA);
break; break;
} }
// AUTH1 // AUTH1
case MFEMUL_AUTH1: { case MFEMUL_AUTH1: {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("[MFEMUL_AUTH1] Enter case"); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("[MFEMUL_AUTH1] Enter case");
if (receivedCmd_len != 8) { if (receivedCmd_len != 8) {
cardSTATE_TO_IDLE(); cardSTATE_TO_IDLE();
LogTrace(uart->output, uart->len, uart->startTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->endTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->parity, true); LogTrace(uart->output, uart->len, uart->startTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->endTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->parity, true);
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("MFEMUL_AUTH1: receivedCmd_len != 8 (%d) => cardSTATE_TO_IDLE())", receivedCmd_len); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("MFEMUL_AUTH1: receivedCmd_len != 8 (%d) => cardSTATE_TO_IDLE())", receivedCmd_len);
break; break;
} }

6
armsrc/mifareutil.c
View file

@ -602,10 +602,12 @@ void emlClearMem(void) {
uint8_t SectorTrailer(uint8_t blockNo) { uint8_t SectorTrailer(uint8_t blockNo) {
if (blockNo <= MIFARE_2K_MAXBLOCK) { if (blockNo <= MIFARE_2K_MAXBLOCK) {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("Sector Trailer for block %d : %d", blockNo, (blockNo | 0x03)); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("Sector Trailer for block %d : %d", blockNo, (blockNo | 0x03));
return (blockNo | 0x03); return (blockNo | 0x03);
} else { } else {
if (DBGLEVEL >= DBG_EXTENDED) Dbprintf("Sector Trailer for block %d : %d", blockNo, (blockNo | 0x0f)); if (DBGLEVEL >= DBG_EXTENDED)
Dbprintf("Sector Trailer for block %d : %d", blockNo, (blockNo | 0x0f));
return (blockNo | 0x0f); return (blockNo | 0x0f);
} }
} }

2
client/cmdlfem4x.c
View file

@ -243,7 +243,7 @@ void printEM410x(uint32_t hi, uint64_t id) {
if (!id && !hi) return; if (!id && !hi) return;
PrintAndLogEx(SUCCESS, "EM410x%s pattern found", (hi) ? " XL " : ""); PrintAndLogEx(SUCCESS, "EM410x%s pattern found", (hi) ? " XL" : "");
uint64_t n = 1; uint64_t n = 1;
uint64_t id2lo = 0; uint64_t id2lo = 0;

1
client/default_keys_dic2lua.awk
View file

@ -10,7 +10,6 @@ $1 ~ /^[A-Fa-f0-9]+/ { sub(/\r/, ""); print " '"substr($1,1,12)"'," }
END { END {
print "}" print "}"
print "---" print "---"
print "-- The keys above have just been pasted in, for completeness sake. They contain duplicates. " print "-- The keys above have just been pasted in, for completeness sake. They contain duplicates. "
print "-- We need to weed the duplicates out before we expose the list to someone who actually wants to use them" print "-- We need to weed the duplicates out before we expose the list to someone who actually wants to use them"

4
doc/bt_manual_v10.md
View file

@ -162,7 +162,7 @@ be connected.
2. The adapter button can be used to delete memory so that other add-on 2. The adapter button can be used to delete memory so that other add-on
can be searched and connected.<p align='center'> can be searched and connected.<p align='center'>
<img src="https://sneaktechnology.com/wp-content/uploads/2019/06/Button.png" alt="Image of blue shark add-on HC-06 white dongle button" width="200"> <img src="https://sneaktechnology.com/wp-content/uploads/2019/06/Button.png" alt="Image of blue shark add-on HC-06 white dongle button" width="200">
</p> </p>
3. After the connection is established, the blue state LED on add-on will 3. After the connection is established, the blue state LED on add-on will
turn on solid. turn on solid.
@ -212,5 +212,5 @@ The red LED will be extinguished when charging is completed.
#### (4) Get better signals #### (4) Get better signals
For the better heat dissipation, we have used a cast metal enclosure for the add-on. As a result Bluetooth wireless signals are sacrificed. For example, if the back of add-on is facing the Bluetooth host, the signal is very bad and the distance will be reduced. The best signal strength can be obtained when the front glass faces the Bluetooth host. For the better heat dissipation, we have used a cast metal enclosure for the add-on. As a result Bluetooth wireless signals are sacrificed. For example, if the back of add-on is facing the Bluetooth host, the signal is very bad and the distance will be reduced. The best signal strength can be obtained when the front glass faces the Bluetooth host.
If the Proxmark3 is not responding, it may be due to a poor Bluetooth connection. To improve performance, try repositioning the Proxmark3 so the glass face is directed toward the host. If the Proxmark3 is not responding, it may be due to a poor Bluetooth connection. To improve performance, try repositioning the Proxmark3 so the glass face is directed toward the host.