Samsung S4 i9505 Display Light Jumper Ways
I-LINK__Dark display, display lights not working and missing display lights repairing blog. The, "Phone-Tolls" (Solved, Tested, Working) Repairing__Samsung S4 i9505 Display Light Jumper Ways guide. From here you can resolve easy Samsung S4 i9505 Display Light not working issue with image diagram block. Here is the image diagram for replacing the faulted components.
Image Diagram, Samsung S4 i9505 Display Light Jumper Ways.
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| Samsung S4 i9505 Display Light Jumper Ways image block on phonetolls. |
How-To, Samsung S4 i9505 Display Light Jumper Ways repairing.
When the display issue come to any mobile phone. Their is no light on display, display not working. In many cases, Mobile phone can send received calls but the dark display issue will accorded. User can see something into a torch or sun light. Some time mobile phone will be died after the display fault. In many cases the faulted LED back lights are the major cause of this (Samsung S4 i9505 Display Light) not working issue.
The broken display not comes into this category. For the broken display you need to replace it. But for the missing something on a motherboard. For example, LED not working. Display connectors are missing or carbonation. Light chip is faulted and their is no current for the display lights. Mobile phone repairing by Phone-Tolls will help you. Let we start to manage repairing the display issue by steps.
First of all, You__need to clean all connector on the display section. You can clean by needle pin and electronics cleaner. Dry after cleaning by CTC or petrol with hot air. Try to avoid and do not disturb the sensitive part of mobile phone. The camera, mic and LCD panel comes into a sensitive parts of every cell phone. Do not try to heat main chips as the first solution. See inside the water damaged mobile phone. If there is any missing or damaged part you can trace. Try to repair it first then apply next step of mobile repairing. The next step to troubleshoot for this issue. Some tests are required for a display problem. Here are the important ways of troubleshooting.
Try to test current on the display Lights pins. If the display links are broken or missing. You can make a direct jumper by a image diagram below. For the display connector repairing. You need to start first from the motherboard connector then display panel strip connector and last LED connector at the back side of panel.
The jumper and LED lights are working fine but the LED current is missing. In this case, You need to fix this issue from the Lights controller section. There could be a separate section or build-on power chip. In separate section of LED lights controller. There could be lights current filter chip or transistor for a auto switching. The auto switch may help to refuse battery life. The display lights are the major things that can drain battery fast. So learn more for the display lights auto switching. Any way let we go to the point mobile repairing by steps.
Make sure! mobile phone "software" is working fine__You can test it by making a *blind call to other cell phone number. If, "the call is attended" cell phone motherboard is OK and the issue is only with its display section. The *Faulted display section will be repaired__by hardware troubleshooting. If you have a last and final plan to heat the power or CPU section. You need a dead approval from its owner. Mobile phone__will be permanently died. This issue will help for the water or quieted damaged display__But before going to last step. I recommend you to solve this issue from the display panel changing. Some time display panel is the major cause of this issue.
I have fix many time__this issue many time on my lab by replacing a display panel. You can test this issue by connecting other LCD if available on a lab. The best way to manage repair any display issue is a simple way. Just test the mobile phone some different ways. For example: If the display lights are not working. You can test it by torch light__There is a menu or display icon will be shown by external lights. You can test the faulted LED current by attached the external current from battery or power supply. If the LED lights are working fine at the external current. That mean the issue is traced and now you can shoot it from Lights controller section.
A little bit you can replace the faulted LED lights__The back side at the top of LCD there are one or more LED you can see after disassemble the LCD. If there are three LED lights into a series. You can test the faulted LED with check meter or by directing any one__You can make a direct jumper from here to sim controller section. It will help you for the easy and perfect missing display lights. But for the human mistake if you have find any thing else here. Please help me to correction that by email or comments section.
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