https://devzone.nordicsemi.com/f/nordic-q-a/64994/problem-updating-modem-software-1-2-0-and-firmware-on-thingy91Hello, 1) I updated the modem software with connect programmer trhu a USB connection on the Thingy:91 2) I updated al the HEX files in the &quot;thingy91_fw_2020-04-29_bc7ade8b&quot; on to the Thingy. Q1) how can I see which files are on the Thingy91? en-USTelligent Community 13Wed, 26 Aug 2020 10:16:19 GMThttps://devzone.nordicsemi.com/thread/266432?ContentTypeID=1Wed, 26 Aug 2020 10:16:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5472db12-e088-4710-afbf-e187dd9d2e5fMarnix<p>- Modem DFU completed successfully</p> <p>- Write &quot;thingy91_at_client_dfu_2020-04-19&quot; but Programmer tells Does not need to be reloaded.</p> <p>- Do I need to upload all HEX files in the folder to the Thingy one by one. (7 files)</p> <p>- When test in LTE link monitor UART Modem UICC and LTE are all red.</p> <p>Functionality power off</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/265455?ContentTypeID=1Thu, 20 Aug 2020 06:59:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:26b5305e-469a-4834-b882-8bc9ea6aba4cMartin Lesund<p>Hi Marnix,<br />Since you update <a href="https://infocenter.nordicsemi.com/index.jsp?topic=%2Fug_nc_programmer%2FUG%2Fnrf_connect_programmer%2Fncp_pgming_thingy91_usb.html" rel="noopener noreferrer" target="_blank">through (MCUboot) USB </a>you need to select the &quot;dfu&quot; files.<br />So if you use one of the files in the folder <em>/thingy91_fw_2020-04-29_bc7ade8b\images_dfu_hex/</em> you should be good.<br />e.g.<br />&quot;<em>thingy91_at_client_dfu_2020-04-29_bc7ade8b.hex</em>&quot;<br /><br /><br /><pre class="ui-code" data-mode="text">Package contents: images_full/ Full firmware images, updated over debug probe / development kit images_dfu_hex/ Application images, updated over USB, HEX format images_dfu_bin/ Application images, updated over USB, binary format</pre></p><div style="clear:both;"></div>