[Android Q&A, Help & Troubleshooting] toxinburn:
Yes that is the bootloader, and it is write protected which means you cant put any custom software on it yet....I am working on getting into a hidden menu that i have found so far i cannot get the am start command to open it up for me not exactly sure why just yet, maybe incorrect syntax of the command let me just show yall a snippet from this apk that tells me it can be done see below.

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="MSL_Checker">Enter MSL</string>
<string name="hdata">DATA</string>
<string name="hdebug">DEBUG</string>
<string name="hRTN">RTN</string>
<string name="hCTN">CTN</string>
<string name="hPROGRAM">PROGRAM</string>
<string name="DSSOption">DSSOption</string>
<string name="DSSOption_View">DSSOption_View</string>
<string name="dssServerUrl">dssServerUrl</string>
<string name="dssProxySerVerIPAdrress">dssProxySerVerIPAdrress</string>
<string name="dssProxyServerPortPref">dssProxyServerPort</string>
<string name="sNotSet"><Not Set>></string>
<string name="debug_password">enter Lock Code</string>
<string name="DebugMenu_Check">Enter Lock Code</string>
<string name="input_password">Enter MSL</string>
<string name="input_akey">Enter A key</string>
<string name="ok_button">OK</string>
<string name="cancel_button">Cancel</string>
<string name="Reset">Reset</string>
<string name="View">View</string>
<string name="Edit">Edit</string>
<string name="Dss">DSS</string>
<string name="Input_URL">Input URL</string>
<string name="Input_IP">Input IP Address</string>
<string name="send_data">Send to modem data</string>
<string name="Advanced">Advanced</string>
<string name="voice_privacy">Voice Privacy</string>
<string name="radio_disable_test_rc">Disable Test RC</string>
<string name="radio_f_rc1_r_rc1">F_RC1 R_RC1</string>
<string name="radio_f_rc2_r_rc2">F_RC2 R_RC2</string>
<string name="radio_f_rc3_r_rc3">F_RC3 R_RC3</string>
<string name="radio_f_rc4_r_rc3">F_RC4 R_RC3</string>
<string name="radio_f_rc5_r_rc4">F_RC5 R_RC4</string>
<string name="hybrid_mode">Hybrid Mode</string>
<string name="cdma_only_mode">CDMA Only Mode</string>
<string name="evdo_only_mode">EVDO Only Mode</string>
<string name="ehrpd_1x_mode">EHRPD 1x Mode</string>
<string name="ehrpd_only_mode">EHRPD Only Mode</string>
<string name="pro_devicestatus">Device status</string>
<string name="pro_true">true</string>
<string name="pro_false">false</string>
<string name="pro_scanning">Scanning...</string>
<string name="global_mode">Global Mode</string>
<string name="lte_cdma_evdo_mode">LTE + CDMA + EVDO Mode</string>
<string name="lte_only_mode">LTE Only Mode</string>
<string name="master_clear_failed">Failed to reset</string>
<string name="modem_Err_Dlg">Modem Error</string>
<string name="device_info_default">Unknown</string>
<string name="spc_fail_error">"Excess SPC failure!
Phone Shutdown 1 min later!"</string>
<string name="ddtm_value_off">DDTM OFF</string>
<string name="ddtm_value_on">DDTM ON</string>
<string name="app_name">IOTHiddenMenu</string>
<string name="PRL_Write">PRL Write</string>
<string name="NamBlock">NamBlock</string>
<string name="DSA_Title">DSS</string>
<string name="DSS_Server_URL">DSS Server URL</string>
<string name="DSS_Proxy_IP">DSS Proxy Server IP address</string>
<string name="DSS_Proxy_Port">DSS Proxy Server Port #</string>
<string name="Input_Port">DSS Input Port #</string>
<string name="MSL_NAM_Info">MSL NAM info</string>
<string name="MSL_mdn">MDN</string>
<string name="MSL_min">MSID</string>
<string name="MSL_akey">AKEY</string>
<string name="Hidden_menu_enable">Enable/Disable Hidden Menu</string>
<string name="Global_Hidden_menu_enable">Enable/Disable Global Hidden Menu</string>
<string name="Secure_Boot">Secure Boot</string>
<string name="Secure_Boot_key">Secure Boot Key</string>
<string name="next_button">Next</string>
<string name="success">Unlock Successful</string>
<string name="invalid_keys">Invalid Keys</string>
<string name="quit">Quit</string>
<string name="agree">I Agree</string>
<string name="done">Done</string>
<string name="warning1">"You have obtained the key for unlocking the bootloader to install custom OS. In order to unlock the bootloader, you must read and accept the following terms and conditions. By clicking on the “I Agree” button, you acknowledge and agree to the terms and conditions. If you change your mind, you may click on the “Cancel” button, which will stop the process.
1. The unlocking of the bootloader voids and invalidates the warranty of your device. As result of the unlocking, certain functions of your device may cease to function and physical injuries or material damage may occur, for example, due to the phone overheating. You take full responsibility for any and all consequences that may arise from the unlocking of the bootloader. Samsung will not be liable for any damages that such unlocking may cause, and you waive any rights in connection with the unlocking.
2. You will not be able to recover the device to its original state. Even if the device’s setting is restored, the warranty will remain voided and invalid.
3. As result of the unlocking, you may lose certain contents that you have stored on your device, for example, through the malfunction of the DRM functions.
4. You agree that your attempt to unauthorized kernel download from the default setting or without the authorization key will lead to blocking of the device, which may permanently disable the device. Samsung will not be responsible for any damages or injuries that result from such attempt. For downloading of custom kernel, you need to follow through a special installation process as set forth in the device manual.
5. You agree to comply with all applicable laws and regulations as well as any contractual obligations that you may have with your wireless carrier in using the unlocked devices. In particular, you will not operate the unlocked device on any wireless carrier’s network unless such wireless carrier approves of the operation of such unlocked device on its network.
6. You agree not to resell your unlocked devices to other parties without first explaining the content of the terms and conditions herein.
"</string>
<string name="warning2">"Your key is verified and the unlocking is successfully done.
If you want to read the terms and conditions you have agreed for unlocking bootloader, please visit our website."</string>
<string name="Dialog_title">Input value</string>
<string name="Dialog_subscript">Please enter value</string>
<string name="Dialog_ok">OK</string>
<string name="Dialog_cancel">Cancel</string>
<string name="select_title">Select Row</string>
<string name="select_subscript">Enter the row</string>
<string name="select_ok">OK</string>
<string name="select_cancel">Cancel</string>
<string name="help_title">Help</string>
<string name="help_subscript">email: lucky29.park@samsung.com tel:010-7260-5948</string>
<string name="help_ok">OK</string>
<string name="enter_button">Enter</string>
<string name="left_button">left</string>
<string name="right_button">right</string>
<string name="up_button">up</string>
<string name="down_button">down</string>
<string name="rssi_ok">OK</string>
<string name="rssi_ng">NG</string>
<string name="enable_hfa">Enable HFA</string>
<string name="restore_nai">Restoring</string>
<string name="yes_button">Yes</string>
<string name="no_button">No</string>
<string name="dtmf_set">DTMF Set</string>
<string name="dtmf_short">Short DTMF</string>
<string name="dtmf_long">Long DTMF</string>
<string name="lte_title">LTE Mode</string>
<string name="lte_enable">Enable LTE Mode</string>
<string name="Toggle_NAI">Toggle NAI</string>
<string name="lte_disable">Disable LTE Mode</string>
<string name="cdma_enable">Enable CDMA Mode</string>
<string name="global_enable">Enable GLOBAL Mode</string>
<string name="LTE_Service_Forced">LTE Service Forced</string>
<string name="MMSC_Title">MMSC</string>
<string name="MMSC_Server">MMSC URL</string>
<string name="Multimedia_Title">Multimedia</string>
<string name="Multimedia_RTSP_Proxy_Addr">RTSP Proxy Address</string>
<string name="Multimedia_RTSP_Proxy_Port">RTSP Proxy Port</string>
<string name="Multimedia_HTTPPD_Proxy_Addr">HTTPPD Proxy Address</string>
<string name="Multimedia_HTTPPD_Proxy_Port">HTTPPD Proxy Port</string>
<string name="Multimedia_IP_Addr">IP Address</string>
<string name="Multimedia_Port">Port</string>
<string name="Multimedia_Buffer_Length">Buffer Length</string>
<string name="Multimedia_Timeout">Timeout</string>
<string name="DirectConnect_SDC_Title">SDC Registration</string>
<string name="DirectConnect_User_Name">User Name</string>
<string name="DirectConnect_User_Name_Input">Input User Name</string>
<string name="DirectConnect_Password">Password</string>
<string name="DirectConnect_Password_Input">Input Password</string>
<string name="DirectConnect_Qchat_Enable">QChat Enabled</string>
<string name="Lte_Params_Title">LTE Parameters</string>
<string name="Lte_Params_Qchat_Apn">QChat APN for LTE</string>
<string name="Lte_Params_Qchat_Apn_Input">Input APN for LTE</string>
<string name="Lte_Params_Qchat_Drx">Desired DRX for LTE</string>
<string name="Lte_Params_Qchat_Drx_Input">Input DRX for LTE</string>
<string name="GlmsSwttings_Title">GLMS</string>
<string name="GlmsSwttings_Primary_Url">GLMS Primary URL</string>
<string name="GlmsSwttings_Primary_Url_Input">Input Primary URL</string>
<string name="GlmsSwttings_Secondary_Url">GLMS Secondary URL</string>
<string name="GlmsSwttings_Secondary_Url_Input">Input Secondary URL</string>
<string name="NabSettings_Title">NAB</string>
<string name="NabSettings_Primary_Url">NAB Primary URL</string>
<string name="NabSettings_Primary_Url_Input">Input Primary URL</string>
<string name="NabSettings_Wifi_Url">NAB WIFI URL</string>
<string name="NabSettings_Wifi_Url_Input">Input WIFI URL</string>
<string name="NabSettings_Enabled">NAB Enabled</string>
<string name="user_name_title">User Name</string>
<string name="user_name">User Name</string>
<string name="spi_mn_ha">SPI MN-HA</string>
<string name="spi_mn_aaa">SPI MN-AAA</string>
<string name="m_home_addr">M Home Address</string>
<string name="prim_home_agent">Prim Home Agent</string>
<string name="sec_home_agent">Sec Home Agent</string>
<string name="pev_tunnel_pref">Rev Tunnel Pref</string>
<string name="toggle_On">On</string>
<string name="toggle_Off">Off</string>
<string name="AAA_Passwd">AAA Password</string>
<string name="HA_Passwd">HA Password</string>
<string name="data_profile_title">Data Profile</string>
<string name="data_profile_user_name">Username</string>
<string name="data_profile_rev_tunnel_pref">Rev. Tunneling</string>
<string name="data_profile_ha_spi">HA SPI</string>
<string name="data_profile_ha_Passwd">HA Password</string>
<string name="data_profile_aaa_spi">AAA SPI</string>
<string name="data_profile_aaa_Passwd">AAA Password</string>
<string name="data_profile_ha_authalgo">HA AuthAlgo</string>
<string name="data_profile_aaa_authalgo">AAA AuthAlgo</string>
<string name="data_profile_device_ip">Device IP</string>
<string name="data_profile_prim_home_agent">Primary HA IP</string>
<string name="data_profile_sec_home_agent">Secondary HA IP</string>
<string name="authalgo_md5">MD5</string>
<string name="authalgo_none">NONE</string>
<string name="view">view</string>
<string name="ESN_MEID">Dec:</string>
<string name="Life_Timers">Life Timers</string>
<string name="Life_Calls">Life Calls</string>
<string name="Life_Bytes">Life Bytes</string>
<string name="Reconditioned_Status">Reconditioned Status</string>
<string name="Activation_Date">Activation Date</string>
<string name="MOBILE_NUMBER">Mobile Number</string>
<string name="SOFT_VER">Software Version</string>
<string name="SOFT_VER_SPR">SW Version</string>
<string name="OS_VER">OS Version</string>
<string name="RADIO_VER">Radio Version</string>
<string name="BBAND_VER">Baseband Version</string>
<string name="HARD_VER">Hardware Version</string>
<string name="PRL_VER">PRL Version</string>
<string name="PRL_VER_SPR">PRL</string>
<string name="ERI_VER">ERI Version</string>
<string name="PCB_version">PCB Version</string>
<string name="MSID">MSID</string>
<string name="priver">PRI:0x01</string>
<string name="priver1">PRI:3.0</string>
<string name="priver2">PRI:3.1</string>
<string name="priver3">PRI:3.4.5</string>
<string name="PRI_VER">PRI Version</string>
<string name="PRI_VER_SPR">PRI Checksum</string>
<string name="HEXA_MEID">Hex:</string>
<string name="GPSCLRX">GPSCLRX</string>
<string name="SCRTN">SCRTN</string>
<string name="Tethering_title">Tethering</string>
<string name="mmsc_title">mmsc</string>
<string name="mmsc">mmsc</string>
<string name="error_title">Attention</string>
<string name="error_empty">This field cannot be empty.</string>
<string name="TTY">TTY</string>
<string name="TTY_Warning">TTY</string>
<string name="call_setting_prefernce">TTY TestMode</string>
<string name="tty_list_string">TTY mode</string>
<string name="tty_value_string">TTY Mode full</string>
<string name="uart_name">UART</string>
<string name="modem_to_pda">PDA</string>
<string name="usb_name">USB</string>
<string name="phoneutil_name">PhoneUtil</string>
<string name="uart_to_lte">LTE</string>
<string name="usblogging_name">USB Logging(DM)</string>
<string name="usbsetting">Qualcomm USB Setting</string>
<string name="function_name">Function</string>
<string name="enable_name">enable</string>
<string name="disable_name">disable</string>
<string name="type_name">Type</string>
<string name="cponly_name">CP only</string>
<string name="aponly_name">AP only</string>
<string name="cpap_name">CP+AP</string>
<string name="auto_answeringmode">Auto Answer without device</string>
<string name="savenreset">SAVE and RESET</string>
<string name="ap_name">AP</string>
<string name="cp_name">CP</string>
<string name="all_name">ALL</string>
<string name="DUN_title">Dial Up Networking</string>
<string name="dun_allow_warning">Allow dial up network? You can not use other data services (i.e browser, MMS etc). After using dial up network turn off it for using other data services</string>
<string name="portmap">ETS Channel</string>
<string name="radio_hfk_diag">HFK,DIAG</string>
<string name="radio_hfk_null">DIAG,NULL</string>
<string name="radio_uart">UART</string>
<string name="radio_usb">USB</string>
<string name="radio_dpram">DPRAM</string>
<string name="mrd">MRD</string>
<string name="one_x_mrd">1X MRD</string>
<string name="hdr_mrd">HDR MRD</string>
<string name="shdr">SHDR</string>
<string name="diversity_test">Diversity Test</string>
<string name="pda_to_modem">CDMA MODEM</string>
<string name="lte_modem">LTE MODEM</string>
<string name="on">ON</string>
<string name="off">OFF</string>
<string name="alert_dialog_two_buttons_title">Yout should perform soft reset to change setting. Do you want to change setting?</string>
<string name="alert_dialog_ok">OK</string>
<string name="alert_dialog_cancel">Cancel</string>
<string name="dns_set">DNS Setting</string>
<string name="dns_enable">Enable DNS</string>
<string name="dns_disable">Disable DNS</string>
<string name="mms_provision">MMS Provisioning</string>
<string name="mmsc_domain">MMSC Domain</string>
<string name="mms_upload_shortcode">Upload ShortCode</string>
<string name="mms_uaprof">UAProf</string>
<string name="mms_auth_mode">AUTH Mode</string>
<string name="mms_user_agent">MMS User Agent</string>
<string name="mms_username">User Name</string>
<string name="mms_commercial">Commercial</string>
<string name="mms_lab_test">LAB Test</string>
<string name="mms_domestic_test">Domestic test</string>
<string name="mms_password">Password</string>
<string name="lock_code">Lock Code:</string>
<string name="invalid_code">Invalid Code</string>
<string name="hiddenmenu_enable_title">Hiddenmenu Enable/Disable</string>
<string name="hiddenmenu_enable_on">Hiddenmenu Enable</string>
<string name="hiddenmenu_enable_off">Hiddenmenu Disable</string>
<string name="Tool_launcher_name">Tool launcher</string>
<string name="Enable">ENABLE</string>
<string name="Disable">DISABLE</string>
<string name="EVDO_Menu_Title">EVDO</string>
<string name="EVDO_DDTM_Pref">DDTM</string>
<string name="EVDO_HDR_Pref">HDR</string>
<string name="eHRPD_Title">eHRPD</string>
<string name="ehrpd_Pref">eHRPD</string>
<string name="ehrpd_on">eHRPD ON</string>
<string name="ehrpd_off">eHRPD OFF</string>
<string name="Advanced_Menu_Title">Advanced</string>
<string name="Advanced_MEID_Pref">MEID</string>
<string name="Advanced_ESN_Pref">ESN</string>
<string name="Advanced_P_REV_Pref">P_REV</string>
<string name="Advanced_Vocoder_Pref">Vocoder</string>
<string name="HomeOrgin_Pref">Home Orig. Vocoder</string>
<string name="HomePage_Pref">Home Page Vocoder</string>
<string name="RoamOrigin_Pref">Roam Orig. Vocoder</string>
<string name="Advanced_BSReHRPD_Pref">BSReHRPD</string>
<string name="Advanced_LTE_Pref">LTE</string>
<string name="Advanced_EVRC_B_Pref">EVRC-B</string>
<string name="Advanced_SCM_Pref">SCM</string>
<string name="Advanced_Slotted_Mode_Pref">Slotted Mode</string>
<string name="Advanced_Slotted_Index_Pref">Slotted Index</string>
<string name="Advanced_Home_NID_Pref">Home NID</string>
<string name="Advanced_Home_SID_Pref">Home SID</string>
<string name="Advanced_MCC_Pref">MCC</string>
<string name="Advanced_MNC_Pref">MNC</string>
<string name="Advanced_ACCOLC_Pref">ACCOLC</string>
<string name="Advanced_Home_Sys_Reg_Pref">Home Sys Reg</string>
<string name="Advanced_FSID_Reg_Pref">FSID Reg</string>
<string name="Advanced_FNID_Pref">FNID Reg</string>
<string name="Advanced_LBS_IP_Addr_Pref">LBS IP Address</string>
<string name="Advanced_LBS_IP_Port_Pref">LBS IP Port</string>
<string name="Advanced_Lock_Code_Pref">Lock Code</string>
<string name="imsport_title">IMS Port Setting</string>
<string name="ok">OK</string>
<string name="clear">Clear</string>
<string name="port">Enter Port number:</string>
<string name="enable">Enable</string>
<string name="disable">Disable</string>
<string name="CLEAR">Clear</string>
<string name="Korea_mode_title">Korea Mode Set</string>
<string name="korea_mode">Korea Mode</string>
<string name="sprint_test_bed">Sprint Mode</string>
<string name="india_mode">India Mode</string>
<string name="mode_off">Mode Off</string>
<string name="Others_title">Others</string>
<string name="otatest">OTA Test</string>
<string name="otatest_on">On</string>
<string name="otatest_off">Off</string>
<string name="otatest_setting">OTA Test Settings</string>
<string name="mtp_mode">MTP</string>
<string name="mtp_adb_mode">MTP + ADB</string>
<string name="ptp_mode">PTP</string>
<string name="ptp_adb_mode">PTP + ADB</string>
<string name="rndis_mode">RNDIS</string>
<string name="rndis_adb_mode">RNDIS + ADB</string>
<string name="rndis_dm_modem_mode">RNDIS + DM + MODEM</string>
<string name="rmnet_dm_modem_mode">RMNET + DM + MODEM</string>
<string name="dm_modem_adb_mode">DM + MODEM + ADB</string>
<string name="programming_name">Programar</string>
<string name="activate_name">Activar</string>
<string name="view_name">Ver</string>
<string name="edit_name">Editar</string>
<string name="done_name">Hecho</string>
<string name="bt_chip">WCN3660</string>
<string name="permission_check">Could not launch the requested activity</string>
<string name="fieldtestmode">Field Test Mode</string>
<string name="systeminfo">System Info</string>
<string name="version">Version</string>
<string name="capability">Capability</string>
<string name="BATT_LEVEL">Battery Level</string>
<string name="BROWSERVERPref">Browser Version</string>
</resources>