I also have a Samsung laptop (QX412), and I'm trying to get into boot menu. F12 does nothing. F8 displays: Edit Boot Options for Windows 7 Partition: 2 Hard Disk: 74aba7c9 [ /NOEXECUTE=OPTIN Enter=Submit, Esc=Cancel ???? I can select the primary boot drive in the bios, but last time I did that (on another laptop) it messed up my HDD. So would rather just select a temp boot device than change the default. Also, not sure which is the right usb to select...

I have been doing glass only screen repairs using LOCA for just over a year, and am also thinking of moving up to using OCA. Firstly, I don't use LOCA in the phone's frame, I remove the LCD from the phone and manually align it. Yes I can remove LCD's from all the Samsung Galaxy range. I want to start using OCA for the following reasons: - No need to take LCD/AMOLED out of the frame, saving time, and money on adhesive. - With LCD screens, no need to remove backlight to prevent LOCA leakage. No need to replace backlight, especially with iPhone 6's where backlight is very hard to remove and reuse. And some phones I can't find replacement backlights. - No returns or discounts due to LOCA uncured, or backlight leakage. - Less clean up. I think the method by dannyp1987 is unnecessary, if like me you rarely get bubbles in your LOCA to begin with. I have tried using OCA by just heating it up with a heat gun and trying to liquefy it slightly, but didn't work. PS: I think the OP is in Far North Queensland (Australia).

As far as I know, you can't buy mobile phone motherboards (logic boards) as a replacement part, as that is the actual "phone" with the individual IMEI number assigned to it. You have to buy another phone to get another motherboard.

I have seen one phone parts site (EtradeSupply) list all different variants of the mid housing (G920F, G920V, G920R etc). But another site (WitRigs) has just one, as if they aren't specific.

Does anyone know? Because i'm in Australia and can't find G920i variant.

Also, has anyone simply swapped over the antennas, and crimped them onto the new housing?