I replaced the logic board of my LG G3 with another one - because of a CPU issue. I realized that the phone did not have any touch input signal. Nothing at all. The new board is not defective - I tried another one just to make sure.
I am very confused right now since I don't know what the problem could be, I just removed the connectors and then put them in place again like they are supposed to be. I didn't do anything at all with the rest of the phone besides exchanging the logic board. What could be the issue and how can I fix it?
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Hi everyone,
I just bought an sprint GSIII logic board of ebay and it said working condition. I swapped the board into my phone and it won't boot then I take a closer look at the board turn out there is a missing IC with all the pad pull off. Look like they was trying to replace the chip with screw driver lol. Anyway does anyone know what the chip is? just curious Thank!
the missing IC is in the middle of the picture.
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After countless of hours diagnosis and doing trial and error in order to rectify the faulty touchscreen issue where a certain part of the touchscreen area is not working. My solution for this problem is by putting a piece of paper or hard cardboard underneath the digitizer ribbon cable just after the connector.(refer the circle part in the picture below)
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Hope it fix yours.
My brother who lives in Budapest had someone replace the battery they broke the fpc connectors when he got the phone back the screen wouldnt work so he called the guy who had run away and left him with three desolderd fpc i have someone who can replace them but i would need to buy the connectors ports
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Hello, I'm clumsy and destroyed my display by dropping my phone.
So I ordered a new display, removed the old one and connected the new display and everything worked. (With open case).
Then I was ready to glue the new display in, removed all the protective foil and suddenly the touchscreen is not working anymore.
Can someone give me a hint what the problem is?
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How should the small connector (Ground?, on the left side) should be attached to the inside of the phone?
Hello everyone,
I've got a bricked LG G4 H815 mainboard lying around. Recently, i've noticed that there are 5 empty connectors scattered across it
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In the service manual they are referred to as RF connectors (Part number: EAG63772101, location number: SW1002,SW1005,SW1101,SW1102,SW1106).
Since they say "RF", it seems likely that they are Antenna connectors (?). Does anyone have an idea, what they are used for?
Thanks
For external antenna