Sometime there are no backlight on the LCD of iphone 3gs

[Hayley]

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It was revived subsequent to a victorious operation, other than an innovative predicament occurred. No lights on LCD! On the previous motorola V3 beneath metal sheild near battery connector encompass the similar number coil "6R8" in addition make sure lcd connector , if water damaged sometimes terrible contact commencing from connector give no light in lcd I be able to break down the iPhone pretty well, other than I have by no means tried to repair no matter which on the motherboard.

[Abhimanyusuta]

If coil is proper then what is the explanation for this predicament. I am in addition have predicament through blacklight iphone 3gs. I am ready completed to change this Coil other than the lcd still black I have predicament through one Htc HD2, subsequent to successfully recovering by means of Riff jtag, I have predicament with LCD light, I have picture on screen but no light. On microscope I saw to facilitate an cristal IC is broken in one corner, on picture mark through arrow. I guess its have 4x4 legs and a number of kind of led driver.

[Mumtaz86]

Through the microscope I become aware of diminutive physical damage beneath edge corner of this chip. I was desperate and endeavor to reflow cautiously this chip through hot air. And that is work, subsequent to this I got light on screen! I approximately always have with the intention of similar predicament, subsequent to LCD replacement. Try to press and grasp the iPhone’s Sleep/Wake button and the Home switch for several seconds (up to 10) imagine with the intention of this is called "soft" reset.

[Joshe]

Utilize the hot air station or superior infrared heater if you have and endeavor cautiously to resolder not essential to lift it up with the intention of ic merely heat it and through some needle endeavor to press it down a little. Set is ok the entire key camera toucher subsequent to set open change ringer then toucher not run iPhone 3g dead subsequent to LCD change. I have changed numerous previous to and had no predicament. I have tried regarding 3 LCD s and no joy. The old cracked one did light ip previous to but at present it does not.

[Tamkinat]

It might be for the reason that they are not genuine. Had extremely similar predicament. LCD did not worked on one phone, other than worked on additional. So I was forced basically revolutionize them and they mutually worked well. Have you completed convinced the plug for the screen is pressed in firmly. You be supposed to feel a hit it off as you are pressing it in. If not you might necessitate to eliminate the no 2 sticker pad and utilize on the innovative plug, or locate something comparable to make sure the plug is pressed down firmly.

[Lambodar]

I have comprised to 2 8GB 3G Iphones with the intention of desirable innovative lcds, I disassembled mutually of them following a service manual. I encompass not damaged several ribbons or tampered through the hardware or no matter which similar to that. My predicament is subsequent to positioning the innovative lcd in the iphone does not power on, Itunes picks the phone up other than no display on moreover Iphones. I in addition be familiar with to facilitate bot my screens are not faulty.