I’m frustrated as hell

Hello drummers....help !!! Technical problems..

Dm10 studio mesh..
1. How to fix cross talk noise .. headphones in the background quite noisy by itself..
2. How to fix. Bass edrum trigger...only triggers in the lower spot of mesh head where the trigger is located . Will not trigger anywhere else like the center.. malot is adjusted to low for playing comfortably. All wire connections look intact...but there is a black wire on jack that is only connected on one side...is it supposed to be like that?
3. Having trouble downloading new software or firmware..
Thank you for your time fellow drummers.. greatest people in the world..
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