https://www.enodev.fr/enTue, 16 Jan 2024 22:07:07 GMTNikola (getnikola.com)http://blogs.law.harvard.edu/tech/rsshttps://www.enodev.fr/posts/restore-the-flames-software-after-a-failed-upgrade.htmlChristophe Vu-Brugier<p>I own a <a href="https://developer.mozilla.org/en-US/docs/Archive/B2G_OS/Phone_guide/Flame">Flame developer reference phone</a> that runs Firefox OS and have been playing with it for a couple of weeks. The Flame is a fully unlocked device: you have access to the bootloader and can change the firmware. Unfortunately, like me, you may <em>fail</em> to flash the firmware. But as we will see, you can still recover your phone.</p> <h2>Fastboot to the rescue</h2> <p>I tried to upgrade my Flame device to a newer version but the upgrade failed for an unknown reason. Even worse, my phone did not boot correctly after the failed upgrade: it was blocked after the "animated fox" appeared on screen. Thus I could not even use my Flame to phone...</p> <p>In such a situation, the solution is to boot the Flame in <em>fastboot mode</em>. For that, you have to press the right combination of keys to instruct the bootloader to enter fastboot mode. For the Flame, you should press <strong>power</strong> and <strong>volume down</strong> at the same time.</p> <p><img alt="Power + volume down" class="img-fluid" src="https://www.enodev.fr/images/flame-fastboot-combo.jpg"></p> <p>After pressing <strong>power</strong> + <strong>volume down</strong>, your Flame device should boot and display the "Thundersoft" red logo. Plug your phone to your computer with the USB cable and invoke the <code>fastboot</code> utility in a terminal emulator:</p> <div class="code"><pre class="code literal-block"><span class="gp">$ </span>fastboot<span class="w"> </span>devices <span class="go">1da25746 fastboot</span> </pre></div> <p>Great! Your device has entered fastboot mode and is ready to be flashed with the original Firefox OS firmware.</p> <h2>Flashing the original Flame firmware</h2> <p>The procedure to flash the original Flame firmware is described in <a href="https://developer.mozilla.org/en-US/docs/Archive/B2G_OS/Phone_guide/Flame/Updating_your_Flame#Updating_upgrading_the_Flame%27s_software">updating your Flame's software</a>. Download the base image named <del><code>v123.zip</code></del> <code>v18D_nightly_v5.zip</code> (<strong>Update march 2019:</strong> the URLs of the base images mentioned in the documentation are dead, but several Firefox OS enthusiasts <a href="https://groups.google.com/forum/#!topic/mozilla.dev.fxos/r9lrH42FIds">keep sharing base images</a>) and decompress it. The archive contains a shell script called <code>flash.sh</code> that you will need to edit. I commented out some lines in order to skip the instructions executed before <code>fastboot devices</code>.</p> <div class="code"><pre class="code literal-block"><span class="c1"># adb kill-server</span> <span class="c1"># adb devices</span> <span class="c1"># adb reboot bootloader</span> fastboot<span class="w"> </span>devices </pre></div> <p>After running the script, my Flame phone was fully restored and I could enjoy it again (and even use it as a phone)!</p> <div class="caption"> <img src="https://www.enodev.fr/images/pouce-cesar-fondation-cartier.thumbnail.jpg" class="img-fluid rounded" alt="César, Le Pouce, Fondation Cartier"> <p>Thumbs-up for a Firefox OS user who restored his phone!<br> <small>César, Le Pouce, Fondation Cartier</small></p> </div>Firefox OSFlamePhonehttps://www.enodev.fr/posts/restore-the-flames-software-after-a-failed-upgrade.htmlMon, 18 Aug 2014 18:00:00 GMT