Update fpv-faq.md

fpv-faq.md

@@ -1,13 +1,11 @@
 ![OpenIPC logo][logo]
 
-## Alternative open firmware for your IP camera
+# Alternative open firmware for your IP camera
 _(based on Buildroot)_
 
 [![Telegram](https://openipc.org/images/telegram_button.svg)][telegram]
 
-### FPV FAQ
-
-### Installing the calibration file for SSC338Q
+## Installing the calibration file for SSC338Q/SSC30KQ devices
 
 - Take an SD card, delete all partitions on it, create one partition of 1 Gigabyte and format it as FAT32/VFAT.
 - Go to the OpenIPC repository [sensor-profiles](https://github.com/OpenIPC/sensor-profiles/) and download the file you need, for example [imx335_greg15.bin](https://github.com/OpenIPC/sensor-profiles/raw/master/files/imx335_greg15.bin).
@@ -23,6 +21,16 @@ rm /mnt/mmcblk0p1/imx335_greg15.bin
 - Reboot your device and enjoy. 
 - You can thank the project via [OpenCollective](https://opencollective.com/openipc#category-CONTRIBUTE).
 
+## Updating the device firmware from the SD card
+
+- Take an SD card, delete all partitions on it, create one partition of 1 Gigabyte and format it as FAT32/VFAT.
+- Go to the OpenIPC repository [Builder](https://github.com/OpenIPC/builder/) and download the firmware you need, for example [mario-aio](https://github.com/OpenIPC/builder/releases/download/latest/ssc338q_fpv_openipc-mario-aio-nor.tgz).
+- Unzip the archive and extract two files from it - rootfs.squashfs.ssc338 and uImage.ssc338q.
+- Download a [file](https://github.com/OpenIPC/firmware/raw/master/general/scripts/boot.scr) with commands for the bootloader, which will perform an automatic update firmware.
+- Place three files on the SD card and insert it into the device and reboot it.
+- If you did everything correctly, you will be able to see in UART how U-Boot will start updating the firmware when it starts.
+- You can thank the project via [OpenCollective](https://opencollective.com/openipc#category-CONTRIBUTE).
+
 
 [logo]: https://openipc.org/assets/openipc-logo-black.svg
 [telegram]: https://openipc.org/our-channels