https://community.nxp.com/t5/MCX-Microcontrollers/After-MCXW71-performs-NBU-Firmware-update-debugging-cannot/m-p/2197153#M4296 <P><SPAN>Hello, according to the steps, Create new workspace and build the bootable image. In the menu bar, select 'Tools' &gt; 'Manufacturing Tools', after executing Write image, execute Apply SB image,''mcxw71_nbu_ble_1_9_14_0.sb3". After the NBU firmware update is successful. Now when debugging the program in MCUXpresso IDE, debugging cannot proceed, Error: Wire Ack Fault - target connected.<span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Dbug失败.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/363618iB896944D9787ADEF/image-size/large?v=v2&amp;px=999" role="button" title="Dbug失败.png" alt="Dbug失败.png" /></span></SPAN></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="屏幕截图 2025-11-03 104257.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/363622i4C5AB7AFDA05CDAD/image-size/large?v=v2&amp;px=999" role="button" title="屏幕截图 2025-11-03 104257.png" alt="屏幕截图 2025-11-03 104257.png" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="屏幕截图 2025-11-03 104244.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/363621i82C3977BBA926B4B/image-size/large?v=v2&amp;px=999" role="button" title="屏幕截图 2025-11-03 104244.png" alt="屏幕截图 2025-11-03 104244.png" /></span></P><P><SPAN><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="屏幕截图 2025-11-03 103945.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/363619i47D2AEA8662169C4/image-size/large?v=v2&amp;px=999" role="button" title="屏幕截图 2025-11-03 103945.png" alt="屏幕截图 2025-11-03 103945.png" /></span></SPAN></P> Mon, 03 Nov 2025 02:50:42 GMT MrShen 2025-11-03T02:50:42Z https://community.nxp.com/t5/MCX-Microcontrollers/After-MCXW71-performs-NBU-Firmware-update-debugging-cannot/m-p/2197153#M4296 <P><SPAN>Hello, according to the steps, Create new workspace and build the bootable image. In the menu bar, select 'Tools' &gt; 'Manufacturing Tools', after executing Write image, execute Apply SB image,''mcxw71_nbu_ble_1_9_14_0.sb3". After the NBU firmware update is successful. Now when debugging the program in MCUXpresso IDE, debugging cannot proceed, Error: Wire Ack Fault - target connected.<span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Dbug失败.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/363618iB896944D9787ADEF/image-size/large?v=v2&amp;px=999" role="button" title="Dbug失败.png" alt="Dbug失败.png" /></span></SPAN></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="屏幕截图 2025-11-03 104257.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/363622i4C5AB7AFDA05CDAD/image-size/large?v=v2&amp;px=999" role="button" title="屏幕截图 2025-11-03 104257.png" alt="屏幕截图 2025-11-03 104257.png" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="屏幕截图 2025-11-03 104244.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/363621i82C3977BBA926B4B/image-size/large?v=v2&amp;px=999" role="button" title="屏幕截图 2025-11-03 104244.png" alt="屏幕截图 2025-11-03 104244.png" /></span></P><P><SPAN><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="屏幕截图 2025-11-03 103945.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/363619i47D2AEA8662169C4/image-size/large?v=v2&amp;px=999" role="button" title="屏幕截图 2025-11-03 103945.png" alt="屏幕截图 2025-11-03 103945.png" /></span></SPAN></P> Mon, 03 Nov 2025 02:50:42 GMT https://community.nxp.com/t5/MCX-Microcontrollers/After-MCXW71-performs-NBU-Firmware-update-debugging-cannot/m-p/2197153#M4296 MrShen 2025-11-03T02:50:42Z https://community.nxp.com/t5/MCX-Microcontrollers/After-MCXW71-performs-NBU-Firmware-update-debugging-cannot/m-p/2197184#M4298 Resolved! The jumper was not connected, thank you! Mon, 03 Nov 2025 03:55:03 GMT https://community.nxp.com/t5/MCX-Microcontrollers/After-MCXW71-performs-NBU-Firmware-update-debugging-cannot/m-p/2197184#M4298 MrShen 2025-11-03T03:55:03Z