rogy .... maybe this trick will help, naexperience ko na dati yan, simple lang ginawa ko, things needed, 1. hair blower 2. yung iphone, at the back of ur phone habang nakapower on , painitan mo ng gradual lang hanggang sa maattain nya yung high-temp, makikita mo mag aappear yung red sign na nagsasabing mag aauto standby/reset yung cp then wait mo lang na lumamig. ang science nun eh yung mga ios device inirereset na yung network/antenna system pag masyadong uminit o lumamig yung cp. wag mo lang iuupdate sa next ios update, kasi pag ginawa mo yun, mawawalan nnanaman ng signal yan. ulitin mo nanaman yung process. ..sana makatulong