trying to flast ZGEMMA H52TC

hi i am trying to flash to open atv 6.2 but cant seem to get the box to go into flash it just keeps loading up like. normal anyone got any suggestions as i am about to throw the box out of the windown lol thanks
 
There is a memory card formatting tool on here somewhere.. You will need to use that..boxes are very picky

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Try..... when you power up from the back button...[ hold on to the front power button ] see if it flashes that way...??
 
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