Salamat po. Lahat po ng training ay mahalaga. Kung ano ang makita nyong available dito po at sa group page enroll lang po kyo. Kahit gaano kasimple at kahirap ang matutunan naten basta meron ok po lahat yan pag pinagsama sama. :)
Up! Battery bro sa last encounter.. Nagccharge sya sa schematic tapos pag ginagamit d naman makita kung padrain na kc stuck sa 50%. Ending biglang mamatay kc drain na pla battery..
Kung sa hardware ibabase sa F1s
1. Check mo fpc connector on board sir at ung fpc connector ng camera kung ok lahat silipin mo sa scope kung walang bungi.
2. Tapos check mo sir yung diode values ng front cam fpc. Tyagain mo isa isa. kung ano ang kakaiba at malayo value or may value sa reference...
Issue:
Camera (No rear cam & front cam upside down)
*Pag openg ng camera app deretso na sa front camera at upside down ang lumalabas na image
Diagnosis:
1. Check the diode values on front cam
- All values are close to normal based on reference (Borneo Schematics)
2. Check the diode values on...
next, check diode values ng back camera fpc connector. compare mo values sir kung may abnormal or kung may putol.
Di ko alam kung pwede to ishare. Padelete na lang po admin kung bawal.. Qualcomm version po itong sample.
Issue:
1. No power
2. Not charging
Solution:
1: Removed shorted capacitor related and connected to PP_VDD_MAIN line (C4902)
Reference used:
1. Phone board for bitmap (pang locate ng line)
2. Borneo for schematic diagram (pang determine ng value and role of component)
Diagnosis Procedure:
1...
Issue:
1. Low current on charge
2. Auto drain battery (newly replaced)
3. High temperature on back case
Solution:
1. Replaced U2IC
Diagnosis Procedure:
1. Check current on product schematic (reading is 1.1A looks normal but eventually drop to .6, .8 and stays there)
2. Disassemble and use DC...
Issue: Failing switch
Procedure:
1. Check if the power switch button has signs of damage. (visual inspection)
2. Test using continuity mode in multimeter. Kung ok pero pumapalya minsan remove the button using hot plate.
a. Apply flux on the button and prepare the hot plate o kahit ung part ng...
Not charging and dead batt issue..
Steps:
1. Check physical condition of charging pin. (Replace if there are signs of corrosion and pseudo soldered pins)
2. Check battery if minimum charging voltage is present (around 3.7V)
3. Check if around 5V voltage is present on the positive line of the...
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