1.1 Auto Keystone Correction
Keystone correction angle range is 20 degrees left and right, 30 degrees up and down.
Please make sure the automatic keystone correction is turned on by select Settings-Projection image Settings-Horizontal Automatic Correction (on)
If this issue persists, please restore the factory settings.
If this issue persists, it may be a problem with the hardware, provide a replacement.
1.2 Manual Keystone Correction
Four Point Keystone: settings-Projection image Settings-Four Point Keystone-Free adjustment by the directional buttons on the remote control;
Horizon And Vector Keystone: settings-Projection image Settings-Horizon Keystone/Vector Keystone/Reset
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