my guess is that the flex cable is attached to the motherboard 1st and the last step before gluing is to attach it to the LCD. At 5:18 the connector on the LCD part is visible
Quick tip to anyone intentionally taking apart a smartphone or similar device: start by looking at a repair guide. Sometimes ribbon cables are inconveniently placed, easily cut or torn if you use your opening tool in the wrong place. If you want it to work when reassembled you want to know these trouble points.
Just looked up the model online, and there appear to be quite a few complaints of the adhesive attaching the display failing after a few years. Don't be too hard on the boys - that's probably what's happened!
The same thing happened to my Tab A, but fortunately I noticed it before the screen fell off, and pushed it back. If you order a new ribbon, pretty sure you can order new adhesive tape specifically for this model.
Ha. My J7 is also discombobulated by ungluing the screen, while my sweetheart's A20e is a lot more civilized, you just spudge your way in, none of that adhesive rubbish. Agreed on tweezers, got a kit and it's pretty useful. And the medical forceps - a trick I learned from Fran, and saw IMSAI Guy do that too. Use the Forceps, Dave! I think the ribbon is plugged into a locking connector on the motherboard - it was done before the mobo cover went on, and left hanging until connecting with the daughterboard in the final assembly. So, more disassembly. Dig under the board... I never realized the fail button does the sad trombone sound.
You could do the replace trace trick if you get some tiny insulated magnet wire and connect the ribbon that way, tedious though but it would be better to get a donor or new ribbon cable.
Those ribbons don't come lose at all when they're a reduced to a tiny strip. You need to pierce them with a needle in at least two different points before it weakens too much unless it's a ZIF and you need to undo the latch. I also use de-oxidant to help ease them out. It works but you need to have your anchor points... no tweezers that I know can do that job.
Last Samsung tablet I had taken apart was suffering from a lack of backlight. The problem was located somewhere on the main board because I attempted a screen replacement and got the same results. Additionally it was designed to have the back removed to get inside instead of going in under the display. I’m imagining the same thing with this model.
Take the back panel off you’ll get easy access to everything that way. It is held on with clips all around; it’s usually easier if you start prying at it on a corner. Be sure to take the sim/memory card tray out first to Make it easier and less potential to damage it.
Pretty much this. I've restored a bnch of samsung tablets and the back panel is the first this that unclips off. The lcd is usually glued on first with the cable coming through to the back. I'm surprised you managed to get the screen off so easily. Probably bad glue ?
Quick question, did you turn it off first or at least give ample time for the battery to cut out? It's probably not a great idea to be poking metal tweezers in the connector if the unit might still be powered.
Replacing the screen in these tablets is amazingly easy, just hear it a bit on the oven to 85°C, then the glue just releases. Use plastic spudgers and suction cups to get it loose. Getting the 1-2mm screen tape is the hard part.
Ugh, torn ribbon cable. I suspected so as soon as I saw it flapping around. I've been noticing that this happens to a whole ton of Samsung tablets due to how they attach the screen to the body... I had a couple of Galaxy Tab 5e with the glued screen coming undone overtime. No dropping, no nothing - it's just that the glue degrades by itself. Tropical country here, might be a major reason... the glue can't cope with the temperatures. Probably the same for Australia, this tablet wasn't designed with the south tropics in mind. I guess it comes with a design that makes these tablets so light. But it's kinda sh*t isn't it? I decided not to get another Samsung tablet, particularly the expensive ones, because of that. Unfortunately for me, one of the tablets dropped the screen in a way it cracked, and the other one I had "fixed" the issue with a very thin double tape but then the tablet got dropped, enough to shatter the screen too. And these tablets... once the screen is gone, the prices for parts are just too expensive to be worth the fix. That's particular to my region because of shipping and tax costs though. A screen kit gets too close to the price of a new tablet. I've even tried using them as makeshift HTPCs or a half ass desktop using DeX, but you know what? It's just not worth the hassle. It's just a major pain to deal with the thing when you don't have the tablet native screen, so much that it's just better to buy something specific for the function. Seems you can buy that ribbon cable alone easy for Galaxy Tab A on Aliexpress though... 5 bucks fix. Good luck Dave!
Hi Dave. Any update on that DC driven LCD? I'm wondering why at least some dodgy chinese companies do not make some products with DC driven LCD's, if you can get away with it?
Screen is connected to the flex cable last, guess they designed it on purpose so the flex cable wouldn’t easily disconnect from the PCB, but opening it back makes it prone to tearing it off, should of had a bigger opening
Sometimes it's surprising how long it takes engineers to realize an obvious fault. I already guessed before opening the device that if it was children and the disconnected screen cable would be destroyed.
I had a Fusion5 tablet that randomly turned off one day and began getting extremely hot. After removing the back and disconnecting the battery, I discovered that the power management/charge IC was burning hot! After putting it back together, I returned it under warranty to Amazon and received their "upgraded model". However, the tablet remained unused for a week and refused to charge or power on! Upon taking it apart, guess what? The same chip that handles power management had once again became faulty out of nowhere and luckily theres protection on the battery pack itself. Never buying those cheap tablets ever again.
I haven't seen a Samsung Tablet in the wild for years. Name brand Android tablets in general seem as rare as hen's teeth - they've such a bad reputation for poor quality and support that no one bothers with them around here.
Didn't Jerry do a bit on sentence speakers? Let me know if you want to join my new sitcom team. It will be a tech horror/comedy. I've asked Sorin to join but no certainty yet. Cheers big maxxy. Enjoy your vids
They probably expect you to disconnect the ribbon from the screen instead. Good thing the ribbon is replaceable at least.
Yep, likely.
my guess is that the flex cable is attached to the motherboard 1st and the last step before gluing is to attach it to the LCD. At 5:18 the connector on the LCD part is visible
Quick tip to anyone intentionally taking apart a smartphone or similar device: start by looking at a repair guide. Sometimes ribbon cables are inconveniently placed, easily cut or torn if you use your opening tool in the wrong place. If you want it to work when reassembled you want to know these trouble points.
From an "Easy fix!" over to *sad trombone* and culminating in a rant. I've been there too!
When you get the new ribbon cable, you can also buy a new glue strip for the screen. They cost only a few bucks.
Just looked up the model online, and there appear to be quite a few complaints of the adhesive attaching the display failing after a few years. Don't be too hard on the boys - that's probably what's happened!
Unlatch the connector before pulling...
The same thing happened to my Tab A, but fortunately I noticed it before the screen fell off, and pushed it back. If you order a new ribbon, pretty sure you can order new adhesive tape specifically for this model.
I think it would be attached to the board first then to the screen before gluing down.
Ha. My J7 is also discombobulated by ungluing the screen, while my sweetheart's A20e is a lot more civilized, you just spudge your way in, none of that adhesive rubbish.
Agreed on tweezers, got a kit and it's pretty useful. And the medical forceps - a trick I learned from Fran, and saw IMSAI Guy do that too. Use the Forceps, Dave!
I think the ribbon is plugged into a locking connector on the motherboard - it was done before the mobo cover went on, and left hanging until connecting with the daughterboard in the final assembly. So, more disassembly. Dig under the board...
I never realized the fail button does the sad trombone sound.
You could do the replace trace trick if you get some tiny insulated magnet wire and connect the ribbon that way, tedious though but it would be better to get a donor or new ribbon cable.
I'm excited for the follow up video if you decide to do that
Those ribbons don't come lose at all when they're a reduced to a tiny strip. You need to pierce them with a needle in at least two different points before it weakens too much unless it's a ZIF and you need to undo the latch.
I also use de-oxidant to help ease them out. It works but you need to have your anchor points... no tweezers that I know can do that job.
Last Samsung tablet I had taken apart was suffering from a lack of backlight. The problem was located somewhere on the main board because I attempted a screen replacement and got the same results. Additionally it was designed to have the back removed to get inside instead of going in under the display. I’m imagining the same thing with this model.
Take the back panel off you’ll get easy access to everything that way. It is held on with clips all around; it’s usually easier if you start prying at it on a corner. Be sure to take the sim/memory card tray out first to Make it easier and less potential to damage it.
Pretty much this.
I've restored a bnch of samsung tablets and the back panel is the first this that unclips off.
The lcd is usually glued on first with the cable coming through to the back. I'm surprised you managed to get the screen off so easily. Probably bad glue ?
Great tutorials- but i’ve yet to see a Dave fixes video that has gone to plan with an actual fix :) Still interesting though! 😊
Quick question, did you turn it off first or at least give ample time for the battery to cut out? It's probably not a great idea to be poking metal tweezers in the connector if the unit might still be powered.
there looks to be a clip on the back of the screen. so the flex would be dangling out and you just connect it to the screen.
0:50 Big dent under sim tray....lol
I had the very first Samsung Galaxy tab their first android tablet it came with Tron Legacy really liked it in 2010
Replacing the screen in these tablets is amazingly easy, just hear it a bit on the oven to 85°C, then the glue just releases. Use plastic spudgers and suction cups to get it loose. Getting the 1-2mm screen tape is the hard part.
Ugh, torn ribbon cable. I suspected so as soon as I saw it flapping around.
I've been noticing that this happens to a whole ton of Samsung tablets due to how they attach the screen to the body... I had a couple of Galaxy Tab 5e with the glued screen coming undone overtime. No dropping, no nothing - it's just that the glue degrades by itself.
Tropical country here, might be a major reason... the glue can't cope with the temperatures. Probably the same for Australia, this tablet wasn't designed with the south tropics in mind.
I guess it comes with a design that makes these tablets so light. But it's kinda sh*t isn't it? I decided not to get another Samsung tablet, particularly the expensive ones, because of that.
Unfortunately for me, one of the tablets dropped the screen in a way it cracked, and the other one I had "fixed" the issue with a very thin double tape but then the tablet got dropped, enough to shatter the screen too.
And these tablets... once the screen is gone, the prices for parts are just too expensive to be worth the fix. That's particular to my region because of shipping and tax costs though. A screen kit gets too close to the price of a new tablet.
I've even tried using them as makeshift HTPCs or a half ass desktop using DeX, but you know what? It's just not worth the hassle. It's just a major pain to deal with the thing when you don't have the tablet native screen, so much that it's just better to buy something specific for the function.
Seems you can buy that ribbon cable alone easy for Galaxy Tab A on Aliexpress though... 5 bucks fix. Good luck Dave!
They probably connect the screen end last, not the pcb end.
It may not even be removable at the end where it broke.
Hi Dave. Any update on that DC driven LCD?
I'm wondering why at least some dodgy chinese companies do not make some products with DC driven LCD's, if you can get away with it?
This is why I always get a case for tablets and phones. Get a five to ten dollar ruggedized case and it will survive the rath of the children
Final connection is done at the screen end of the flat flex🤣👍
Screen is connected to the flex cable last, guess they designed it on purpose so the flex cable wouldn’t easily disconnect from the PCB, but opening it back makes it prone to tearing it off, should of had a bigger opening
That's the southern hemisphere model to stop the cable falling out. Rest of the world has the connector the other way around 🦘🙃
Backwards spinning toilets got him again
Даже у таких маэстро бывают ошибки, потому, не стоит никогда огорчаться, если что то сломали случайно:)
Я думаю это было до него сломано, эти шлейфы довольно сложно порвать вот так ровно) Скорее всего при предыдущем вскрытии ножом перерезали.
Sometimes it's surprising how long it takes engineers to realize an obvious fault. I already guessed before opening the device that if it was children and the disconnected screen cable would be destroyed.
I had a Fusion5 tablet that randomly turned off one day and began getting extremely hot. After removing the back and disconnecting the battery, I discovered that the power management/charge IC was burning hot! After putting it back together, I returned it under warranty to Amazon and received their "upgraded model". However, the tablet remained unused for a week and refused to charge or power on! Upon taking it apart, guess what? The same chip that handles power management had once again became faulty out of nowhere and luckily theres protection on the battery pack itself.
Never buying those cheap tablets ever again.
I haven't seen a Samsung Tablet in the wild for years. Name brand Android tablets in general seem as rare as hen's teeth - they've such a bad reputation for poor quality and support that no one bothers with them around here.
What, A tab A went wrong and it was'nt the USB connector? If i had'nt seen it myself...
Wow those things are really targeting your videos lol. Thought I were first. Apparently not
Didn't Jerry do a bit on sentence speakers? Let me know if you want to join my new sitcom team. It will be a tech horror/comedy. I've asked Sorin to join but no certainty yet. Cheers big maxxy. Enjoy your vids
whack it back in - that's what she said...
noob
Yes it would see you are.