iPhone 5s water damage and no modem firmware after mag power on

babyrose

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iphone 5s water damage after powering on walang modem so hndi sya mka hagap ng
signal/hndi mag detect ng sim pero may imei


action taken:clean pcb
check kung may short ba kasi water damage at nag short sa may lights ic pero nakuha
nmn sa linis at ma swerte nag power on na pag check ko lahat modem firmware is
absent nwala sya at tumingin me sa schematics nakita ko si U2_RF ay connected sya
sa baseband sya yung mag supply ng voltage papuntang baseband kaya ni reheat ko
kaso hndi nkuha at ni reball ko na ayun nag ok nman... ito po yung screen shots


wag po muna tayo deritso sa baseband if mawala ang modem firmware kasi po may
nag supply ng voltage ppuntang baseband at yan si U2_RF


img_20170225_142152_zps9dsihjfo-jpg.64656

img_20170225_145129_zpszetbcwz5-jpg.64657
 
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