REFERENCE Samsung T285 no Display problem Fixed!!!

activa2r

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from other shop sinubukan ng mag replace ng lcd
pero black screen pa rin..

disassemle phone trace kay borneo
ok lahat ng coonection

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pero sinubukan ko mag diode mode missing ang pin 1 LCD ESD

at ito yun..

a63.JPG

nag trace ako pero na bigo ..
sinubukan ko e connect sa true rail nya
kasi sa schematic open mga resistor at transistor
nag jump ako sa arrow indicated pero no luck

Capture.JPG

IMG_0275.JPG

IMG_0276.JPG

decide na reball cpu..

tools
quick 861dw
bga paste 158 degree melting

Heat 380 AIR 40 samsung kasi kaya medyo makunat

a62.jpg

reballs linis glue at balik cpu and done..

a6.jpg
 
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