Garbage or nah?

[fmbking]

I was watching YouTube a few days ago on my h918 and noticed half of the screen went fully dim, back to normal, then back again. Panicked, i restarted the phone. Upon boot LG logo was half dim so i ruled out a software problem. I then disassembled the phone and noticed powdery corrosion covering the screen to motherboard connection. Cleaning the metal contacts didn't solve anything. Would simply replacing the screen fix the problem or could a chip/module on the motherboard be responsible?

 

[Andy Chi]

I used to repair hundreds of smartphones with that problem when I used to be a phone tech a long time ago, when I come across a powdery corrosion, it's usually from water, meaning the phone was submerged into water in the past and the water rusted a bit on anything metallic, plus when water dries it leaves substances of flouride/dirt/chlorine/salt etc. Best thing to do before spending any money is get a soft bristle toothbrush and lightly brush any foreign debris away and clean the mobo and LCD connector as best as you can then assemble the phone back together and power on the phone then test it with normal uses through out the days.

 

[fmbking]

I used to repair hundreds of smartphones with that problem when I used to be a phone tech a long time ago, when I come across a powdery corrosion, it's usually from water, meaning the phone was submerged into water in the past and the water rusted a bit on anything metallic, plus when water dries it leaves substances of flouride/dirt/chlorine/salt etc. Best thing to do before spending any money is get a soft bristle toothbrush and lightly brush any foreign debris away and clean the mobo and LCD connector as best as you can then assemble the phone back together and power on the phone then test it with normal uses through out the days.

The screen is completely black now. Tried tooth brush (thank you), and qtip with alcohol as a last resort, no success. I noticed the area of the glass on the corresponding side of the LCD connection becomes extremely hot immediately when powered on. Hmmph, will probably buy another one instead of risking it on a new screen. Funny im writing this on my old G3 i had to bake in an oven to get to boot up. LG hates me.

 

[Andy Chi]

The screen is completely black now. Tried tooth brush (thank you), and qtip with alcohol as a last resort, no success. I noticed the area of the glass on the corresponding side of the LCD connection becomes extremely hot immediately when powered on. Hmmph, will probably buy another one. Funny im writing this on my old G3 i had to bake in an oven to get to boot up. LG hates me.

Ohh damm bro what a bummer. I still have a G3 too but with a dead SIM card reader. Good luck on whatever new phone ya get.