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HELP ME poco x3 nfx signal problem

F

Faceman

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good pm mga boss meron ako dito tanggap poco x3 nfc . kwento ni tomer na hardrop unit then after nun nwala daw data pero detected sim nta kaso nka E lang minsan nag 4g sya kaso wla data na napasok any idea thanks
 

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Faceman said:
good pm mga boss meron ako dito tanggap poco x3 nfc . kwento ni tomer na hardrop unit then after nun nwala daw data pero detected sim nta kaso nka E lang minsan nag 4g sya kaso wla data na napasok any idea thanks
Click to expand...
Check antenna idol, if same check lines on antenna papuntang signal section, perform reflow on particular signal section involved components, check sa borneo para alam mo san titirahin, post update if may progress ba.
 
GSM_JAGUAR said:
Check antenna idol, if same check lines on antenna papuntang signal section, perform reflow on particular signal section involved components, check sa borneo para alam mo san titirahin, post update if may progress ba.
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dol bali not w
GSM_JAGUAR said:
Check antenna idol, if same check lines on antenna papuntang signal section, perform reflow on particular signal section involved components, check sa borneo para alam mo san titirahin, post update if may progress ba.
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ncheck ko na tol antenna buo naman. poblema dol di ako familiar sa ma signal ng android apple kasi kalimitan gawa ko meron naman ako burneo enlight me
 
update po action taken
Reheat PA IC at wtr ic same di nagsuccess .tinest ko vph at vreg present both voltage then check DATA and CLK ng PA IC wala voltage nagdalawang isip na ko bunutin si PA ic ( QM56020 ) At ayun napansin ko may mga missing pads ako nakita . after pads rework and reball PA IC ayun nag success . thanks kay boss gsm_jaguar sa guide .
 

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Faceman said:
update po action taken
Reheat PA IC at wtr ic same di nagsuccess .tinest ko vph at vreg present both voltage then check DATA and CLK ng PA IC wala voltage nagdalawang isip na ko bunutin si PA ic ( QM56020 ) At ayun napansin ko may mga missing pads ako nakita . after pads rework and reball PA IC ayun nag success . thanks kay boss gsm_jaguar sa guide .
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Case solved!, Hindi pa cpu boss. Hahaha
 
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