I have a problem with my pretty old model UE32D5700 that I recently bought for 30$, it appears that the image shows bluish whites and not totally white.
So I tried to calibrate it again through the service mode and as described here : https://wiki.samygo.tv/index.php?title=Calibration
but the image is still bluish.
I also tried to calibrate the screen with the patterns I attached to this post. It succeed but the image is still blue

Can you help me please ? What should I do ?
And how can I use the test pattern proposed in the service mode ?