![Silver Steel Plate](https://static.wixstatic.com/media/aa8c0aa7ed284038b58a32af55ae6337.jpg/v1/fill/w_16,h_9,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/aa8c0aa7ed284038b58a32af55ae6337.jpg)
DESAL-8 Firmware Update Instruction
Step 1:
Press and hold the F & S buttons at the same time
![11.jpg](https://static.wixstatic.com/media/4fb422_3b35c7fb635e4283bc28408de8b63995~mv2.jpg/v1/fill/w_918,h_460,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/11.jpg)
Step 2:
While holding the F & S buttons, turn on the light fixture
![12.jpg](https://static.wixstatic.com/media/4fb422_758eae7654a84299a65ea436ce008c93~mv2.jpg/v1/fill/w_600,h_452,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/12.jpg)
![13.jpg](https://static.wixstatic.com/media/4fb422_60d8d9684b1b417d949895e283d20ca5~mv2.jpg/v1/fill/w_124,h_71,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/13.jpg)
Step 3:
Light fixture is on "Stand By Mode" - Wait Program
Step 4:
Now open up the DESAL SIK app, and click Bluetooth connect button
Then, choose the related light fixture that will need to have firmware update
![1.jpg](https://static.wixstatic.com/media/4fb422_6e75486d159f496e92b0ed39eecbfd97~mv2.jpg/v1/fill/w_53,h_116,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/1.jpg)
![2.jpg](https://static.wixstatic.com/media/4fb422_7fa78052a62247d39db00ac56199f845~mv2.jpg/v1/fill/w_53,h_116,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/2.jpg)
![3.jpg](https://static.wixstatic.com/media/4fb422_0cc4aac0040e410bae3c2b932ef8cfe9~mv2.jpg/v1/fill/w_53,h_116,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/3.jpg)
Step 5:
Once connected to the light fixture, click the top right button, then click "Firmware Update"
Click "OK" to confirm you want to update the firmware, then update will be started.
![5.jpg](https://static.wixstatic.com/media/4fb422_42bdc5fac8b2409285310e02e46f9cc8~mv2.jpg/v1/fill/w_53,h_115,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/5.jpg)
![6.jpg](https://static.wixstatic.com/media/4fb422_e713e6bc8edf4f20b2ab482b94fa2431~mv2.jpg/v1/fill/w_53,h_115,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/6.jpg)
![7.jpg](https://static.wixstatic.com/media/4fb422_60970a76a2ff4393930dcbc16574e215~mv2.jpg/v1/fill/w_53,h_115,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/7.jpg)
Step 6:
Both the DESAL app and light fixture will show firmware update completed (Program ok)
And now you can re-start the light fixture.
![8.jpg](https://static.wixstatic.com/media/4fb422_b2c26f44a8644acb94618ab9f0621b2f~mv2.jpg/v1/fill/w_54,h_117,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/8.jpg)
![14.png](https://static.wixstatic.com/media/4fb422_4146782df5914ebd9636917f506fb840~mv2.png/v1/fill/w_120,h_74,al_c,q_85,usm_0.66_1.00_0.01,blur_2,enc_auto/14.png)
Step 7:
Double check if your APP is compatible with the correlated firmware version of your light fixture.
***Light fixture firmware version can be checked on the "Device INFO"**
Note that the Firmware version must be the same in order for the light to work properly.
![16.jpg](https://static.wixstatic.com/media/4fb422_b5a07802f93e457eb3c134b4884bd1b2~mv2.jpg/v1/fill/w_139,h_55,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/16.jpg)