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How to change the PIN number for your SIM card on Chromebook LTE models - Acer Community
<main> <article class="userContent"> <p>You can change your SIM card PIN number for your Acer Chromebook if you feel like it has been compromised. Use the instructions below to change your SIM card PIN number.</p><ol><li>Select the time on the bottom right, then select <strong>Settings ⚙.</strong></li><li>Turn on <strong>Mobile data</strong>.</li><li>Turn on <strong>Enable Sim Card Locking (require PIN to use mobile data).</strong></li><li>Click the <strong>Change Pin </strong>button.</li><li>Enter your old PIN, then type and confirm your new PIN.</li></ol><p><br></p> </article> </main>