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<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav> <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Introduction</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/" aria-current="page" class="sidebar-link">Getting Started With ACPI</a></li><li><a href="/Getting-Started-With-ACPI/ssdt-platform.html" class="sidebar-link">Choosing the SSDTs</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Methods</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/ssdt-methods/ssdt-methods.html" class="sidebar-link">How to create SSDTs</a></li><li><section class="sidebar-group is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/ssdt-methods/ssdt-prebuilt.html" class="sidebar-link">Pre-Built SSDTs</a></li><li><a href="/Getting-Started-With-ACPI/ssdt-methods/ssdt-easy.html" class="sidebar-link">SSDTs: The easy way</a></li><li><a href="/Getting-Started-With-ACPI/ssdt-methods/ssdt-long.html" class="sidebar-link">SSDTs: The long way</a></li></ul></section></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Manual</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/Manual/dump.html" class="sidebar-link">Getting a copy of our DSDT</a></li><li><a href="/Getting-Started-With-ACPI/Manual/compile.html" class="sidebar-link">Compiling and decompiling ACPI Tables</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Desktop</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/Desktops/desktop-disable.html" class="sidebar-link">Disabling desktop dGPUs</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Laptop</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/Laptops/backlight.html" class="sidebar-link">Fixing Backlight</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Laptops/trackpad.html" class="sidebar-link">Fixing Trackpad</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Laptops/laptop-disable.html" class="sidebar-link">Disabling laptop dGPUs</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading open"><span>Universal</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/Universal/ec-fix.html" class="sidebar-link">Embedded Controller</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading open"><span>Methods</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/Universal/ec-methods/prebuilt.html" class="sidebar-link">Prebuilt</a></li><li><a href="/Getting-Started-With-ACPI/Universal/ec-methods/ssdttime.html" class="sidebar-link">SSDTTime</a></li><li><a href="/Getting-Started-With-ACPI/Universal/ec-methods/manual.html" aria-current="page" class="active sidebar-link">Manual</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/Universal/ec-methods/manual.html#finding-the-acpi-path" class="sidebar-link">Finding the ACPI path</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/Universal/ec-methods/manual.html#dsdt" class="sidebar-link">DSDT</a></li><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/Universal/ec-methods/manual.html#devicemanager" class="sidebar-link">DeviceManager</a></li></ul></li><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/Universal/ec-methods/manual.html#edits-to-the-sample-ssdt" class="sidebar-link">Edits to the sample SSDT</a></li><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/Universal/ec-methods/manual.html#edge-cases" class="sidebar-link">Edge Cases</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/Universal/ec-methods/manual.html#multiple-pnp0c09-s-show-up" class="sidebar-link">Multiple PNP0C09's show up</a></li><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/Universal/ec-methods/manual.html#no-pnp0c09-show-up" class="sidebar-link">No PNP0C09 show up</a></li><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/Universal/ec-methods/manual.html#pnp0c09-already-named-ec" class="sidebar-link">PNP0C09 already named EC</a></li><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/Universal/ec-methods/manual.html#pnp0c09-already-has-an-sta-method" class="sidebar-link">PNP0C09 already has an _STA method</a></li></ul></li><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/Universal/ec-methods/manual.html#compiling-the-ssdt" class="sidebar-link">Compiling the SSDT</a></li><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/Universal/ec-methods/manual.html#wrapping-up" class="sidebar-link">Wrapping up</a></li></ul></li></ul></section></li><li><a href="/Getting-Started-With-ACPI/Universal/plug.html" class="sidebar-link">CPU Power Management</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Universal/awac.html" class="sidebar-link">AWAC vs RTC</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Universal/nvram.html" class="sidebar-link">NVRAM PMC</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Universal/rhub.html" class="sidebar-link">USB RHUB</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Universal/imei.html" class="sidebar-link">IMEI</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Universal/unc0.html" class="sidebar-link">Fixing Uncore Bridge</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Universal/smbus.html" class="sidebar-link">Fixing SMBus Support</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Universal/irq.html" class="sidebar-link">IRQ Fix</a></li><li><a href="/Getting-Started-With-ACPI/Universal/spoof.html" class="sidebar-link">GPU Spoof</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Cleanup</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/cleanup.html" class="sidebar-link">Cleanup</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Misc</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/troubleshooting.html" class="sidebar-link">Troubleshooting</a></li><li><a href="/Getting-Started-With-ACPI/CONTRIBUTING.html" class="sidebar-link">Contributing</a></li></ul></section></li></ul> </aside> <main class="page"> <div class="theme-succinct-content content__default"><h1 id="fixing-embedded-controllers-manual"><a href="#fixing-embedded-controllers-manual" class="header-anchor">#</a> Fixing Embedded Controllers: Manual</h1> <ul><li><a href="#fixing-embedded-controllers-manual">Fixing Embedded Controllers: Manual</a> <ul><li><a href="#finding-the-acpi-path">Finding the ACPI path</a> <ul><li><a href="#dsdt">DSDT</a></li> <li><a href="#devicemanager">DeviceManager</a></li></ul></li> <li><a href="#edits-to-the-sample-ssdt">Edits to the sample SSDT</a></li> <li><a href="#edge-cases">Edge Cases</a> <ul><li><a href="#multiple-pnp0c09s-show-up">Multiple PNP0C09's show up</a></li> <li><a href="#no-pnp0c09-show-up">No PNP0C09 show up</a></li> <li><a href="#pnp0c09-already-named-ec">PNP0C09 already named <code>EC</code></a></li> <li><a href="#pnp0c09-already-has-an-_sta-method">PNP0C09 already has an <code>_STA</code> method</a></li></ul></li> <li><a href="#compiling-the-ssdt">Compiling the SSDT</a></li> <li><a href="#wrapping-up">Wrapping up</a></li></ul></li></ul> <p>TO-DO:</p> <ul><li>Finish Edge cases and sample SSDT edits</li></ul> <h2 id="finding-the-acpi-path"><a href="#finding-the-acpi-path" class="header-anchor">#</a> Finding the ACPI path</h2> <p>To find the ACPI pathing, you have 2 methods:</p> <ul><li><a href="#DSDT">DSDT</a></li> <li><a href="#devicemanager">DeviceManager</a></li></ul> <h3 id="dsdt"><a href="#dsdt" class="header-anchor">#</a> DSDT</h3> <p>Finding the ACPI pathing is quite easy actually, first open your decompiled DSDT you got from <a href="/Getting-Started-With-ACPI/Manual/dump.html">Dumping the DSDT</a> and <a href="/Getting-Started-With-ACPI/Manual/compile.html">Decompiling and Compiling</a> with either maciASL(if in macOS) or any other text editor if in Windows or Linux(VSCode has an <a href="https://marketplace.visualstudio.com/items?itemName=Thog.vscode-asl" target="_blank" rel="noopener noreferrer">ACPI extension<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a> that can also help).</p> <p>Next, search for <code>PNP0C09</code>. You should get something similar:</p> <p><img src="/Getting-Started-With-ACPI/assets/img/pnp.8c2387eb.png" alt=""></p> <p>From the above example we see 2 main things:</p> <ul><li>Name of our embedded controller
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<ul><li>In this case being <code>EC0</code></li></ul></li> <li>Pathing of our embedded controller
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<ul><li><code>PC00.LPC0</code></li></ul></li></ul> <p>But now we get into edge case territory, what fun!</p> <p>The main ones to check for are:</p> <ul><li><a href="#fixing-embedded-controllers-manual">Fixing Embedded Controllers: Manual</a> <ul><li><a href="#finding-the-acpi-path">Finding the ACPI path</a> <ul><li><a href="#dsdt">DSDT</a></li> <li><a href="#devicemanager">DeviceManager</a></li></ul></li> <li><a href="#edits-to-the-sample-ssdt">Edits to the sample SSDT</a></li> <li><a href="#edge-cases">Edge Cases</a> <ul><li><a href="#multiple-pnp0c09s-show-up">Multiple PNP0C09's show up</a></li> <li><a href="#no-pnp0c09-show-up">No PNP0C09 show up</a></li> <li><a href="#pnp0c09-already-named-ec">PNP0C09 already named <code>EC</code></a></li> <li><a href="#pnp0c09-already-has-an-_sta-method">PNP0C09 already has an <code>_STA</code> method</a></li></ul></li> <li><a href="#compiling-the-ssdt">Compiling the SSDT</a></li> <li><a href="#wrapping-up">Wrapping up</a></li></ul></li></ul> <p>If none of the above apply to you, you're ready for the next section:</p> <h3 id="devicemanager"><a href="#devicemanager" class="header-anchor">#</a> DeviceManager</h3> <p>If you already have Windows installed on this machine, finding the EC pathing is fairly easy.</p> <p>Start by opening up Device Manager in Windows and looking for a device named <code>Embedded Controller</code>. Once found, click on it and select the <code>BIOS device Name</code> entry. You should get something like this:</p> <p><img src="/Getting-Started-With-ACPI/assets/img/ec.dd4b7c64.png" alt=""></p> <p>From the above, we can see that our pathing is <code>SB.PC00.LPC0.EC0</code></p> <p>Now with the pathing, you can head here: <a href="#edits-to-the-sample-ssdt">Edits to the sample SSDT</a></p> <h2 id="edits-to-the-sample-ssdt"><a href="#edits-to-the-sample-ssdt" class="header-anchor">#</a> Edits to the sample SSDT</h2> <p>Now that we have our ACPI path, lets grab our SSDT and get to work:</p> <ul><li><a href="https://github.com/acidanthera/OpenCorePkg/blob/master/Docs/AcpiSamples/SSDT-EC-USBX.dsl" target="_blank" rel="noopener noreferrer">SSDT-EC-USBX<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a> <ul><li>For Skylake and newer and all AMD systems</li></ul></li> <li><a href="https://github.com/acidanthera/OpenCorePkg/blob/master/Docs/AcpiSamples/SSDT-EC.dsl" target="_blank" rel="noopener noreferrer">SSDT-EC<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a> <ul><li>For Broadwell and older</li></ul></li></ul> <p>Now when opening this SSDT, you'll notice a few things. Mainly:</p> <ul><li>Some code is commented out
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<ul><li>This is code for disabling our EC</li> <li>Laptops users <strong>SHOULD NOT</strong> uncomment this</li></ul></li> <li>There's a new EC called <code>Device (EC)</code> <ul><li><strong>DO NOT RENAME THIS</strong>, this will be the EC we give to macOS</li></ul></li></ul> <p><strong>Before</strong>:</p> <div class="language- extra-class"><pre class="language-text"><code>External (_SB_.PCI0.LPCB, DeviceObj) <- Rename this
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Scope (_SB.PCI0.LPCB) <- Rename this
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</code></pre></div><p><img src="/Getting-Started-With-ACPI/assets/img/ssdt-before.b846f355.png" alt=""></p> <p>Following the example pathing we found, the SSDT should look something like this:</p> <p><strong>After</strong>:</p> <div class="language- extra-class"><pre class="language-text"><code>External (_SB_.PC00.LPC0, DeviceObj) <- Renamed
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Scope (_SB.PC00.LPC0) <- Renamed
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</code></pre></div><p><img src="/Getting-Started-With-ACPI/assets/img/ssdt-after.7996c4b7.png" alt=""></p> <h2 id="edge-cases"><a href="#edge-cases" class="header-anchor">#</a> Edge Cases</h2> <h3 id="multiple-pnp0c09-s-show-up"><a href="#multiple-pnp0c09-s-show-up" class="header-anchor">#</a> Multiple PNP0C09's show up</h3> <p>When multiple PNP0C09 show up, we need to next check for the following properties:</p> <ul><li><code>_HID</code> (Hardware ID)</li> <li><code>_CRS</code> (Current Resource Settings)</li> <li><code>_GPE</code> (General Purpose Events)</li></ul> <p>What these signify is whether this PNP0C09 device is real or not, as per the <a href="https://uefi.org/sites/default/files/resources/ACPI_6_3_final_Jan30.pdf" target="_blank" rel="noopener noreferrer">ACPI spec<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a>. So one's matching the above criteria are the one's we want to disable.</p> <ul><li>Note: If _STA shows up as well, you'll need to go here: <a href="#pnp0c09-already-has-an-sta-method">PNP0C09 already has an <code>_STA</code> method</a></li></ul> <h3 id="no-pnp0c09-show-up"><a href="#no-pnp0c09-show-up" class="header-anchor">#</a> No PNP0C09 show up</h3> <p>When this happens, you'll only need to create a "dummy" EC for macOS.</p> <p>Try searching for any devices named: "LPCB", "LPC0", "LPC", "SBRG", "PX40". If you have any of these, try using the LPC pathing of each of those device in place of the Embedded Controller's pathing.</p> <p>Note that <strong>DO NOT</strong> uncomment the EC disaling code as there are no devices that are considered "EC" in your machine.</p> <h3 id="pnp0c09-already-named-ec"><a href="#pnp0c09-already-named-ec" class="header-anchor">#</a> PNP0C09 already named <code>EC</code></h3> <p>Congrats! No need to create an SSDT-EC! However you will still want USBX if you're skylake or newer.</p> <p>Prebuilt can be grabbed here: <a href="https://github.com/dortania/OpenCore-Post-Install/blob/master/extra-files/SSDT-USBX.aml" target="_blank" rel="noopener noreferrer">SSDT-USBX.aml<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></p> <h3 id="pnp0c09-already-has-an-sta-method"><a href="#pnp0c09-already-has-an-sta-method" class="header-anchor">#</a> PNP0C09 already has an <code>_STA</code> method</h3> <p>This is the equivalent of not having an EC as we can't control it with our SSDT-EC, instead we'll need to create a "dummy" EC for macOS. You'll still want to find the PCI and LPC pathing for this device. So follow the guide as if you were creating a laptop SSDT-EC/USBX.</p> <p>Example of an EC with STA already:</p> <p><img src="/Getting-Started-With-ACPI/assets/img/sta.e2d0aed0.png" alt="Credit to rottenpants466"></p> <h2 id="compiling-the-ssdt"><a href="#compiling-the-ssdt" class="header-anchor">#</a> Compiling the SSDT</h2> <p>With the SSDT done, you're now <a href="/Getting-Started-With-ACPI/Manual/compile.html">ready to compile the SSDT!</a></p> <h2 id="wrapping-up"><a href="#wrapping-up" class="header-anchor">#</a> Wrapping up</h2> <p>Once you're done making your SSDT, either head to the next page to finish the rest of the SSDTs or head here if you're ready to wrap up:</p> <ul><li><a href="/Getting-Started-With-ACPI/cleanup.html"><strong>Cleanup</strong></a></li></ul></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated:</span> <span class="time">10/6/2020, 10:54:31 AM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
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