The initial iPhone 7 supply shortage was due to better-than-expected demand for the iPhone 7 Plus and undersupply of jet black casings caused by a poor production yield rate of 60-70%; overall demand is still weaker than that for the iPhone 6S.
Ukushoda kokuqala kokuphakelwa kwe-iPhone 7 kungenxa yesidingo esingcono kunokulindelekile se-iPhone 7 Plus nokutholakala okwanele kwamakhava. umnyama ocwebezelayo kubangelwe yizinga eliphansi lokukhiqiza lembuyiselo yama-60-70%; ukufunwa komhlaba kusabuthakathaka kunalokho kwe-iPhone 6S.