https://devzone.nordicsemi.com/f/nordic-q-a/16272/pack-arm-cmsis-4-5-0-is-not-installedHello, I&#39;m developing nRF52 with Keil5.14. Before I used nRF52_SDK_0.9.2 and it worked fine.(With NordicSemiconductor.nRF_DeviceFamilyPack.8.0.3.pack) I upgrade the SDK to nRF52_SDK_12.0.0 and also installed Nordic Service pack 8.7.1(NordicSemiconductoren-USTelligent Community 13Mon, 12 Sep 2016 14:24:32 GMThttps://devzone.nordicsemi.com/thread/62209?ContentTypeID=1Mon, 12 Sep 2016 14:24:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3b4300ff-40c1-4fde-981a-2a20f203d16dPetter Myhre<p>Great! :)</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/62208?ContentTypeID=1Thu, 08 Sep 2016 18:10:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fcdf5b60-fad1-44b4-a09c-dca480433aceMich<p>Hi Petter,</p> <p>Thanks very much for your answer. I realized that I need to uninstall the older version of device service pack. Finally it works.</p> <p>Mich</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/62210?ContentTypeID=1Thu, 08 Sep 2016 13:11:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e08bf362-4f2a-40eb-b568-049c0995004aPetter Myhre<p>First go to Pack Installer and click Check for Updates, green arrows.</p> <p>Then go to Select Software Packs, select CMSIS 4.5.0. It should look like this:</p> <p><img src="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/SelectSoftwarePacks.JPG" alt="image description" /></p><div style="clear:both;"></div>