how to disable boot and shutdown sound? - Flipout and Charm General

I installed the central europe ROM.
How can I disable the startup and shutdown sound?

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Hello, anybody know if is possible disable phone options menu (power button) when lockscreen is active in CM7.x?
Best regards
Pio.

[Q] Is my s4 damage inside or its hardware malfunction? or virus os damage!?

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[Q] Silent Mode doesn't desatictivate

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[Q] How to lock the phone at startup/boot with non-stock lockscreens?

I have tried many Lockscreen apps from Play Store (Slidelock, Echo etc) and they all have 1 problem. After restarting the phone, it doesn't lock and doesn't ask for the pattern so I can unlock it. After the boot, I have to press the Power button so the lockscreen will work.
I didn't have that problem with the stock-lockscreen. With the stock lockscreen (I have S4, Lollipop, non-root), after restarting the phone, lockscreen immediately locks the phone and asks for password/pattern but with Slidelock & Echo, it bypass it at boot and will only work after pressing the Power button from the phone.
Any solution? Or that's a general problem that non-stock lockscreens have?
P.S. I gave administrator permission for the lockscreen apps.

Security on OPT

Hi folks,
I'm enquire how to disable going to recovery via volup+power button when screen is locked? If my phone get stolen or something there is big chance that they go to recovery and delete all files and install other custom rom. Also how to disable usb plug when screen is off?

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