A-Trend AD-L528
Make sure there is no disc in the player tray.
Press Pause, 3, 1, 4, 1, 5 & 9 on the remote control.
The word CODE will appear in the DVD player’s window.
Enter the desired region number.
Press Pause.
Turn the player Off and then On again.
A-Trend Helios
Open the drive tray.
Press Stop on the remote control.
Press 1,9,9& 9 with the remote control.
Select the region option from the hidden menu that appears to change to all regions or a specific region.
Turn Off the machine with remote control.
Turn the machine back On with the remote control.
Insert the region disc you want to play.
Open the drive tray.
Press Setup on the remote control.
Press 1,9& 9 with the remote control.
Select the REGION option from the hidden menu that appears to change to all regions or a specific region.
Turn Off the machine with remote control.
Turn the machine back On with the remote control.
Insert the region disc you want to play.
A-Trend LE-511
Switch ON the DVD player.
Press Stop.
Press 1,9,9 & 9 on the remote control.
The hidden menu appears.
Set the Zone field to All.
Acoustic Solutions DVD-321_DVD521
Open disc tray.
Press Set-up on the remote.
Press Next, Preg, Next, Prev.
Enter region code set-up: ver 255=Region free, ver 1 = region-1, ver 2 = region 2
Press ‘left’ or ‘right’ key.
Press the Down key, twice Ver 4001 = macrovision enable Ver 4000 = macrovision disable.
Press ‘Left’ or ‘Right’ key.
Acoustic solutions DVD-451 _ DVD-521 _ DVD-551
Press the Setup button on the remote control.
Press Next.
Press Pause\ Setup
Press Prev
Press next.
You should now be in a secret menu where you can change Region 1-6 or for Region free.