Hi.
how can i downgrade 2.0.4 official to 2.0.3 official on Q5 Pro ?
Hello just install The 2.03 firmware and follow the procedure you have in this :
http://www.futeko.com/newforum/index.php?topic=1865.0
1. Extract update.zip (using an unzip program like 7zip, winzip etc) from Q10 PRO FIRMWARE. ANDROID 7 TO ANDROID 7. FUTEKO. HMD-2.0.3 2017-04-12.095905. Q10 PRO MUST ALREADY BE RUNNING ANDROID 7 TO INSTALL THIS FIRMWARE.zip to the root of a FAT32 formatted USB pen drive. (the USB pen drive should contain a single file called 'update.zip').
2. Insert the USB pen drive into any USB port of Q10 Pro.
3. With Q10 Pro turned off, use a paper clip or pen to press and hold the the pinhole UPGRADE button on the back of Q10 Pro (next to the power port).
4. While keeping the UPGRADE button pressed, turn on the Q10 Pro.
5. Q10 Pro will show the Android 7 coloured circle upgrade logo.
6. When you see the coloured circle upgrade logo you can release the restore button.
7. A progress bar will indicate update progress. Do not turn box off or use the box/remote during update!
8. When update is complete the box will automatically reboot.
9. First boot will take 3-5 minutes. The box will reboot into new Android 7 firmware. Allow boot to complete.