particle - CCParticleExplosion working on Simulator but not on iPhone 4S -


i having issue ccparticleexplosion works on simulator , fails on iphone 4s. in simulator, particles fine. when explosion happens on iphone, there dark shadow of explosion , broken, flickering fragments of texture used. here code:

bombexplosion = [[ccparticleexplosion alloc] initwithtotalparticles:3]; //bombexplosion = [[ccparticleexplosion alloc] init];  //bombexplosion.autoremoveonfinish = yes; bombexplosion.texture = [[cctexturecache sharedtexturecache] addimage: @"newnhamm_multicolored_sparkle_edit.png"]; bombexplosion.speed=100; bombexplosion.duration = 1.3; bombexplosion.life = 0.3; bombexplosion.position = ccp(835,85);  cccolor4f startcolor, startcolorvar, endcolor, endcolorvar; startcolor.r = 1.0f; startcolor.g = 1.0f; startcolor.b = 1.0f; startcolor.a = 1.0f;  startcolorvar.r = 0.0f; startcolorvar.g = 0.0f; startcolorvar.b = 0.0f; startcolorvar.a = 0.0f;  endcolor.r = 1.0f; endcolor.g = 1.0f; endcolor.b = 1.0f; endcolor.a = 1.0f;  endcolorvar.r = 0.0f; endcolorvar.g = 0.0f; endcolorvar.b = 0.0f; endcolorvar.a = 0.0f;  bombexplosion.startcolor = startcolor; bombexplosion.startcolorvar = startcolorvar; bombexplosion.endcolor = endcolor; bombexplosion.endcolorvar = endcolorvar;  [self addchild:bombexplosion];


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