Xl2411P overclock(out of range not disappearing)

[zerexxxx]

Hello folks.
During the past couple of days,ive been trying to overclock my xl2411p but it is just not working.currently im connecting it to my lenovo y540 laptop(rtx 2060) via displayport to mini displayport and it runs 144hz great but i want more...
Ive tried softmccs and oorbuster and all the rest versions but none of them get rid of the out of range error.
ive tried using different monitor setting but still no luck
in softmccs ,it says manufacture date is 2020.i wonder if they changed the firmware to stop people from overclocking.
any help would be appreciated.
My maximum overclock is at 149hz,any thing more throws the error.Whats funny is that ,anything less than 190hz,it stays black screen with the error and i have to unplug but anything after 190hz,it doesnt get stuck ,it just shows the error and im able to get out of the error using esc key.
Thank you all for help

[ThaSome]

Have you uncapped the HZ with the respective Pixel Clock Patcher?