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[Q] Disassembly for screen replacement

I know this is a hardware question, but I'm hoping someone might have an answer.
My son cracked the screen on his Galaxy S Blaze. I ordered a replacement screen assembly and found a video which I thought showed how to replace the screen, but it was for a different model. I have the cover off, the flex cables disconnected and the motherboard out, but I can't figure out how to remove the old screen from the front housing. Based on the other video, it should be a combination of heating the edge of the housing with a hair dryer until the adhesive softens, then prying it off. I've tried to do this with no luck, but it could be that I'm not prying hard enough - kinda scared to break it.
Does anyone know how to remove the screen - or better yet, know of a disassembly guide for the Galaxy S Blaze?
Thanks!

Heat, Heat and more heat...

Be careful with the heat as it can destroy amoled

a little off topic but...
One of the pins on my usb port got damaged. I was curious and took off the cover to have a look at what would be needed to replace it.... too much soldering that is above my skill level. Anyways, in the process of removing the cover, I lost functionality of my hardware buttons. I'm assuming I damaged the cables that attach them to the mobo. Didn't notice this until I put the cover back on and booted up. Does that seem right? Was I just being too harsh while taking it apart and ripped a ribbon or something of the like?

[Q] Motherboard replacement help

Anyone have a guide or tips on replacing the motherboard. My tablet bricked while updating to 10.6.1.8 and is stuck in the Asus splash screen. I've seen to utube vid on the screen replacement but can not seem to find a motherboard how to. It seems to motherboard must be removed during the screen replacement. Will I need paste? Is the large copper heat sink cover glued on? Any advise would be great.

Tabbajit said:
Anyone have a guide or tips on replacing the motherboard. My tablet bricked while updating to 10.6.1.8 and is stuck in the Asus splash screen. I've seen to utube vid on the screen replacement but can not seem to find a motherboard how to. It seems to motherboard must be removed during the screen replacement. Will I need paste? Is the large copper heat sink cover glued on? Any advise would be great.
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The copper pad has glue where the processor and the rams are. Some might have glue at the far left and right side. But you can lift it off (you will break the warranty seal in the process). If you're replacing the motherboard, you need to:
A. Disconnect (1) the battery (connector located underneath the copper pad); (2) charging cable (flat amber); (3) touchscreen cable (flat white or silver, sometimes covered with black tape); (4) lcd screen cable (strand of multi-colored wires taped down to the battery); (5) remove the small amber cable connecting the power switch to the MB; and (6) disconnect the speakers connector from the MB.
B. Remove all the tiny screws in plain sight holding the MB to the magnesium frame.
C. Lift the cameras off their slots with something non-metal, like a toothpick.
D. Lift the MB just a bit to make sure it's loose, then SLIDE it out to the left, paying particular attention to the power button module (small amber ribbon assembly at the top right corner). If you pull it straight up, you will rip it.
Reassembly is just the reverse. Be sure to connect the battery last, just before reinstalling the copper pad. Good luck. Go to this thread for pics.

Thanks for the pointers. Will I need any thermal paste for the processor?

Tabbajit said:
Thanks for the pointers. Will I need any thermal paste for the processor?
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Apparently, the copper pad is smeared with some heat-conducting adhesive at contact points with the processor and ram chips. Some people would just stick it back. It didn't hold as well the second time though, in my experience. I cleaned off the sticky stuff, used Arctic Silver 5 on both components, and stuck some copper tape around the pad's edge. Just personal preferences.

Tabbajit said:
Thanks for the pointers. Will I need any thermal paste for the processor?
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i don't think it is necessary...

so there are 2 cables I am not able to disconnect. one is the larger longer cooper ribbon that connects to the charging\docking port. the other has a similar connection. it is under black tape and is between the mico hdmi output and a multi color ribbon. I was able to get the other ones disconnected. Please help. Trying to take my time but I am getting frustrated and worried I am going to break something
EDIT- I figured it out. The black part behind the tan connection part is tinny but flips up. I got it disconnected. That was easier than I though!

[Q] Chip (gyroscope) came off during screen replacement

Hey folks, Doing my screen replacement on my N5 and got sloppy. Gyroscope chip popped off camera unit.
Should i just order a new camera unit, or is there a way to re-adhere this thing?
See picture.
thanks for your help all

You can resolder it with heat gun

Get a new one. Unless your soldering skill is above adverage
SENT BY ENTANGLEMENT

No not that skilled. Just placed an order for a new one. Thanks folks

So if my gyroscope is not working, I should order an entire camera unit?

These chips are surface mounted. You'll need to add solder paste to each individual copper plating then place the chip on top correctly. Then you'll need to apply heat evenly for it to solder back together. You could do this using an oven if you remove the lens and flex cable. Just remember to place the IC the right way on the board and don't short-circuit anything.
It's much harder than it sounds if you want to do it right. I used to do this for a living and I use $20,000+ machinery to do it.

Camera focus problem

After disassembling my phone to change the usb port, camera is not able to focus on nearby objects. I have installed another program to handle the focus manually but not luck, the focus is moving when i slide the bar, but with nearby objects is blurry. Any idea???

Did you replace the port pcb with the same part number?
Check any connectors you took off for damage to the pins or misalignment. Check ribbon cables for damage. Reassemble exactly as it was disassembled... watch some tear down vids, maybe you missed something.
Loose components and pcbs are more susceptible to ESD damage... ESD protocols should be observed. At least keep room humidity above 45%! Wear cotton clothes.

Did you replace the port pcb with the same part number?
It's identical but with different part number.
I cheked the connectors, good solder and alignment. May be i have to use a magnifien lens to check SMD connectors, sometimes when you remove a connector welding can break .......

FalloSistema said:
Did you replace the port pcb with the same part number?
It's identical but with different part number.
I cheked the connectors, good solder and alignment. May be i have to use a magnifien lens to check SMD connectors, sometimes when you remove a connector welding can break .......
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Not identical, wrong part. This could be the cause. To verify this put the old pcb back in to see if it resolves the issue.
If so you need that exact OEM part.
Also the BGA chipsets are impossible to inspect with their dozens of solder joints under the chipset... but I don't think that's the issue.

Finally resolve, the problem is the lens protector, when i removed it, camera focus its very fast even macro scenes.
There are two issues with the lens protector, is lightly gladed, but the most important, the distance between the camera and the lens, as show this video:

Vertical moving lines new phone screen

I dropped my Samsung A30 recently which broke the screen. Having replaced the full screen with a new one, I’m still having issues vertical lines across the screen, any thoughts on what it could be?
Could it be an issue with an alignment or do I need to replace some other parts?

Carefully check the display ribbon cable and pins for any damage. Replace if any is found. Make sure they are clean and completely seated. Inspect the mobo for any signs of damage. Assemble it exactly as it was before.
Likely the only other thing left is the mobo assuming the display is good.
You can try clearing the cache, a factory reset or reflashing to the same rom. However chances are if the data was corrupted it's because of mobo damage. If so using another compatible 3rd party rom -may- bypass the damage*.
Always use a good case to protect the mobo from unsurvivable high G loading or direct physical damage from drops.
*try gently flexing the mobo and putting slight pressure on the chipset with it on. The chipsets are BGA with the solder pads on the bottom and are sensitive to board flexing and high G loads. If one or more of those solder joints are cracked the only way to repair is with a hot air station and a lot of skill. A visible fracture solder joint on a surface mount cap or resistor, etc can be repaired... with the right skillset and tools including a good temperature controlled soldering iron.

blackhawk said:
Carefully check the display ribbon cable and pins for any damage. Replace if any is found. Make sure they are clean and completely seated. Inspect the mobo for any signs of damage. Assemble it exactly as it was before.
Likely the only other thing left is the mobo assuming the display is good.
You can try clearing the cache, a factory reset or reflashing to the same rom. However chances are if the data was corrupted it's because of mobo damage.
Always use a good case to protect the mobo from unsurvivable high G loading or direct physical damage from drops.
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Thanks for the direction, I’ll attempt the above

AHuss123 said:
Thanks for the direction, I’ll attempt the above
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You're welcome. I added to that post.
Use good light and a magnifying aid to inspect it.
Take your time...