shower tray screw up

[G1zm0]

Hi . Ive a bit of a prob. I have a wbp 18mm plywood floor. I primed a area for my shower tray using srb.

The shower tray is a stone resin one 720 x 720
Its slimline profile.about 40mm

The floor is level . So I used a 10mm spread of mapei keraflex adhesive.
After installing the tray I have noticed its level at the the back and front but tge sides are out by about 5 mm.

Would I be able to lift this tray back out without damage?

Whats best way to do it . Theres about a 3mm layer of addy at bottom.

 

[AdamCH]

The longer you leave it the firmer it will get stuck as the adhesive cures.

 

[G1zm0]

Its bn down for a week. Was thinking if I used a long flat piece if metal and try break the bond . Or just cut the floor and take it out that way and replace floor.

Then angle grind the adhesive to release the board