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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. | ||
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: | ||
[[File:{{{file_flash_firmware}}}]] | [[File:{{{file_flash_firmware}}}]] | ||
Line 18: | Line 18: | ||
<th>value</th> | <th>value</th> | ||
<th>description</th> | <th>description</th> | ||
</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> | <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> | <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> | ||
Line 47: | Line 37: | ||
<td>Flash selected image (Upgrade)</td> | <td>Flash selected image (Upgrade)</td> | ||
<td>- (interactive button)</td> | <td>- (interactive button)</td> | ||
<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}}}]] |