Samsung Galaxy A3 A300H Display Light Ways Backlight Jumper

Samsung SM-A300H Display Light Problem Jumper Lcd Light Ways Backlight Solution
Samsung Galaxy A3 A300H Display Light Ways Here’s a troubleshooting hint for Samsung A300H LCD Display problem such as a blank display or no display at all and otherwise a corrupted or garbled display. This solution may help you for easy repair procedures.

Note: This only works if you can still hear something on the phone like tones, incoming alerts and not on a white screen problem or hang up on white screen situation.

The quickstep to fixing display problem is that you have to verify a working LCD, just replace the LCD screen module at once just to ensure that the LCD is working or not and then proceed to hardware troubleshooting after confirming that the LCD is still fine. Just locate the highlighted components shows on figure solution picture below and do have a careful check up on each one of them one by one.

LCD is still fine. Just locate the highlighted components shows on figure solution picture below and do have a careful check up on each one of them one by one.

Samsung Galaxy A3 A300H Display Light Problem Ways Solution

The very first thing that you need to do is to re-solder all the pins of Samsung SM-A300H Display onboard connector and check LCD screen.
If the above step fails then check it with a good working LCD screen.
Now check both capacitors (Capacitor 1 and Capacitor 2) with their side’s first pin of display onboard connector. If any of them is faulty, replace them.
Now Check Continuity between a +ve terminal of the battery with display IC’s first pin.
Check all the display IC capacitors for continuity, if any of them is faulty then change it.
If the above step fails then gently heat display IC and check if it still fails then change it.

If you have further questions please don’t hesitate to leave a comment.

Note: Every repairing solution posted here is tested by at least one member of our team. Use the information available here at Your Own Risk. We are not responsible if any harm comes to your device during the repairing process.

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Samsung Galaxy A3 A300H LCD Display Light IC Solution Jumper Problem Ways LCD Display Light Not Working