iPhone 6 plus mất đèn hoàn toàn 2018
step 1: measure the resistance at 6 sockets, if lost any line -> use zxw tracking and lifting wires (yellow frame) on this line.
orange text: Incase, phones drop in water, they often combustion base of IC ->replace. With the strong wire was also died diot. Notice, the capacitors (orange frame), if lost, it will make the light bright a while, then die, or IC light was heat. The capacitors (purple frame), if shorting, the power was lost, the shorting of primary voltage part 2.
green text: Incase, the base under screw was scraped -> lifting from IC light to this testpoint (have to take off 2 capacitors to see).
note: Take a careful look at the screen, if it just show apple icon without light, or doesn’t show anything -> it was a different problem. Specific of IP 6+ have 2 IC light, so base on logic, it cannot die both of them at the same time. With our experience, most of them just break line and often lost 1 light. Take a look at screw base or take off 2 IC light -> measure impedance green base, if lost -> lifting to line (scrape under screw).
orange text: Incase, phones drop in water, they often combustion base of IC ->replace. With the strong wire was also died diot. Notice, the capacitors (orange frame), if lost, it will make the light bright a while, then die, or IC light was heat. The capacitors (purple frame), if shorting, the power was lost, the shorting of primary voltage part 2.
green text: Incase, the base under screw was scraped -> lifting from IC light to this testpoint (have to take off 2 capacitors to see).
note: Take a careful look at the screen, if it just show apple icon without light, or doesn’t show anything -> it was a different problem. Specific of IP 6+ have 2 IC light, so base on logic, it cannot die both of them at the same time. With our experience, most of them just break line and often lost 1 light. Take a look at screw base or take off 2 IC light -> measure impedance green base, if lost -> lifting to line (scrape under screw).