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| The <b>Flash New Firmware Image</b> section is used to upgrade the device's firmware. Firmware can be upgraded either from server or from an image uploaded from your computer. | | The <b>Flash New Firmware Image</b> section is used to upgrade the device's firmware. Firmware can be upgraded either from server or from an image uploaded from your computer. |
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− | The figure below is an example of the Flash New Firmware Image section: | + | The figure below is an example of the Flash New Firmware Image section and the table below provides information on the fields contained in that section: |
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| [[File:{{{file_flash_firmware}}}]] | | [[File:{{{file_flash_firmware}}}]] |
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| <th>value</th> | | <th>value</th> |
| <th>description</th> | | <th>description</th> |
− | </tr>
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− | <tr>
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− | <td>Download</td>
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− | <td>- (interactive button)</td>
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− | <td>When clicked, downloads the firmware version currently available in the server (Fota Free)</td>
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− | </tr>
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− | <tr>
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− | <td>Check For New FW</td>
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− | <td>- (interactive button)</td>
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− | <td>When clicked, checks if there is a newer firmware version (than the device's current version) available on server (Fota Free)</td>
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| </tr> | | </tr> |
| <tr> | | <tr> |
| <td>Keep settings</td> | | <td>Keep settings</td> |
| <td>yes | no; default: <b>yes</b></td> | | <td>yes | no; default: <b>yes</b></td> |
− | <td>When checked, specifies that all of the current device settings must be kept after the firmware upgrade</td> | + | <td>Ensures that all of the current device settings will be kept after the firmware upgrade</td> |
| </tr> | | </tr> |
| <tr> | | <tr> |
| <td>Upgrade from</td> | | <td>Upgrade from</td> |
| <td>File | Server; Default: <b>Server</b></td> | | <td>File | Server; Default: <b>Server</b></td> |
− | <td>The source of the firmware image. Can be either downloaded from Fota Free (Server) or uploaded from you computer (File)</td> | + | <td>Source of the firmware image. Can be either downloaded from Fota Free (Server) or uploaded from a computer (File)</td> |
| </tr> | | </tr> |
| <tr> | | <tr> |
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| <td>Flash selected image (Upgrade)</td> | | <td>Flash selected image (Upgrade)</td> |
| <td>- (interactive button)</td> | | <td>- (interactive button)</td> |
− | <td>When clicked, initiates a firmware upgrade</td> | + | <td>Uploads the firmware image to the router and attempts to verify its validity</td> |
| </tr> | | </tr> |
| </table> | | </table> |
| + | |
| + | ===Firmware verification=== |
| + | ---- |
| + | When you upload a firmware image, the device will have to verify the validity of that image. If the verification was a success, you will redirected to window with a message such as this: |
| + | |
| + | [[File:{{{Trb14x_webui_system_flash_firmware_verification_succeeded_v1.png}}}]] |
| + | |
| + | This means that the uploaded firmware image is compatible with your device. The indication also displays the file's MD5 and SHA256 checksums. A <b>checksum</b> is a sequence of hexadecimal symbols generated after running an algorithm called a cryptographic hash function on a file. Calculating a checksum and comparing it with the one provided by the file source can be used as a file authenticity check method. A list of {{#ifeq:{{{name}}} | TRB142 | {{{series}}} | {{{name}}}}} firmware checksums can be seen <b>[[{{#ifeq:{{{name}}} | TRB142 | {{{series}}} | {{{name}}}}} Firmware checksum list|here]]</b>. |
| + | |
| + | If everything is in order, you can click the <b>Proceed</b> button to initiate the upgrade or click <b>Cancel</b> to abort. |
| + | |
| + | On the other hand, if the uploaded a firmware file that is incompatible with your device, you will see an indication such as this: |
| + | |
| + | [[File:{{{Trb14x_webui_system_flash_firmware_verification_failed_v1.png}}}]] |