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REFERENCE Samsung A11 No Power.. Fixed...

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activa2r

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Joined
Oct 30, 2022
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History ng phone bago nag no power medyo ma lag at bagal ng response..
kaya naisipan e restart at ayon biglang vibrate na lng hanggang sa namatay na.
trace sa PSU (power supply) 0.126ma steady lang pag press ng power switch..

kaya CPU reworks uli..
Tools:
Hot air Quick 861dw..
BGA solder Paste 158deg melting point..

Disassemble phone and pull out CPU..
hot air profile 280• Air 30 for removing glue around CPU nozzle number 1
tapos preheat 309• air 35 nozzle number 2
Pull out Cpu
hot air 355• Air 60..

IMG_20231027_164652.jpg

linisin glue sa cpu at board 310 heat 30 air at reball CPU..

IMG_20231027_184531.jpg

install cpu 355 heat 60 air.

and done..

IMG_20231027_190410.jpg

IMG_20231027_190430.jpg


IMG_20231027_190600.jpg

sana makatulong sa mga baguhan..
 
History ng phone bago nag no power medyo ma lag at bagal ng response..
kaya naisipan e restart at ayon biglang vibrate na lng hanggang sa namatay na.
trace sa PSU (power supply) 0.126ma steady lang pag press ng power switch..

kaya CPU reworks uli..
Tools:
Hot air Quick 861dw..
BGA solder Paste 158deg melting point..

Disassemble phone and pull out CPU..
hot air profile 280• Air 30 for removing glue around CPU nozzle number 1
tapos preheat 309• air 35 nozzle number 2
Pull out Cpu
hot air 355• Air 60..

View attachment 29288

linisin glue sa cpu at board 310 heat 30 air at reball CPU..

View attachment 29289

install cpu 355 heat 60 air.

and done..

View attachment 29290

View attachment 29291


View attachment 29292

sana makatulong sa mga baguhan..
sir p silip po stencil mo..tia
 
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