Touch screen digitizer separate from lcd? - Xiaomi Redmi 4X Questions & Answers

Hey
I hate using my phone with screen protector and i found touch screens for a very affordable price at aliexpress. So i thought i can use it without protection and replace it when scratched a lot. But i don't know whether they are real or fake, can i replace the touch screen only at redmi 4x
Thx
For example this one
https://m.aliexpress.com/item/32955...d=8346amp-Zo7DJJvOz-vtl-JXLungyw1553249259914

The product you've linked is for a Redmi Note 4X, be careful when shopping for parts. A few items on Aliexpress show black touchscreens with very visible silver touch buttons (menu/home/back), these are certainly not original. The other ones I don't know, but you'll likely not experience a big difference to the original one.
Be warned though: Replacing just the touchscreen is time consuming work. You have to remove all the glue to separate the LCD from the touchscreen glass, and later add new glue.
On the Redmi 4X the screen is also glued to the phone internal frame, you have to remove that and glue it back in too (can be done with a hair dryer, but be careful, it breaks easily).
There are some Youtube videos that explain replacing touchscreens, they make it seem easy and quick, but it takes some time for a beginner.

Thanks a lot for the enlightening answer, i didn't pay attention the link i wrote, but the idea is there, so you say its possible to change the digitizer only although its not easy and it s time consuming.. Thanks again, i ll consider this. 'cause its much more better to use without a screen protector..

Related

Scratches

Hi guys,
I have some minor scratches on my screen (2 to be exact ), but I was wondering, when I buy a new front cover, does that also include some kind of plastic window? Or are HTC's touched by the LCD itself and do you need a new screen when you have sratches?
Please enlighten me
Aren't you using a screen protector?? If you are you just need to change the screen protector itself.
If you've scratched the touchscreen itself (as, out of the box it has no protection on it) then I'm afraid it will be a replacement touch screen (fairly cheap)... but you shouldn't replace the whole LCD unit (hideously expensive)!
I bought a secondhand kaiser with protector from the factory on it. But it was old so I decided to take it off and order a new good one. But then i discovered two (minor) scratches. I'm doubting, the new touchscreen is almost cheaper than a good screenprotector, but opening the screen means opening the whole entire phone .
_MsG_ said:
I bought a secondhand kaiser with protector from the factory on it. But it was old so I decided to take it off and order a new good one. But then i discovered two (minor) scratches. I'm doubting, the new touchscreen is almost cheaper than a good screenprotector, but opening the screen means opening the whole entire phone .
Click to expand...
Click to collapse
Well, screenprotectors can be very cheap (and reasonable). - just depends what you're looking for. In my experience it's always been cheaper to buy a good quality screen protector for a different device and guilotine it down to size. Here in the UK, locally, I can get a pack of 5 good quality matt screen protectors (which are better than the shiny ones when you're out on a motorbike in bright sunlight!) for about £5.99 but as they're designed for a digital camera I need to trim about an inch of each one lengthways.
If you do need to replace the touchscreen you will need to open the phone... Can't really help on that one as I've only been playing with the Kaiser for about 12 weeks and have not (unusually for me) cracked it open.
I suspect it will be just as rugged as my original Hermes though!
Whatever you decide - good luck!
Maybe I just put my Whine modus to off and ignore the two scratches that arent visible, only in direct sunlight at a certain angle . I can feel them though with the stylus, but I hope that will be over with a new screenprotector.

Replace Digitizer only?

My touch screen stopped working on my phone, but the screen is still visible. I'm assuming it's the digitizer. I was wondering if anybody has done or tried replacing only the digitizer. Does this work, is it better just to replace both? Any suggestions? Thanks.
Save yourself the headache
Just replace the complete screen unit (lcd + digitizer).
The digitizer is held on the screen with some super strong adhesive that is nearly impossible to get off cleanly. Also, there are three (4?) thin ribbon tabs that have to be soldered to the board on the rear of the lcd. Unless you are really confident with a soldering iron, it is extremely hard to do.
I replaced my screen unit in about a half hour. Make sure you go to the wiki and find one of the excellent disassembly guides before you start.
Thanks
Thanks, that's exactly the information i needed to know. I found the fon logix video. Is it only a t6 tool i need, or do i also need a t5. I have seen conflicting info on this? Thanks again.
I got my scren unit from ebay, and it included a torx driver and a plastic case tool. I honestly can't remember what size came in the kit, because I used my own torx set. Im pretty sure its just the one size, though.
Good luck!
You might find this information interesting.
http://forums.wireless.att.com/cng/board/message?board.id=cingular&thread.id=116836
Disregard ............
i always replace only the touch screen. okay i've done it aprox 30 times. But i never broke one.
if you decide to replace only the touchscreen, there are 2 types. thus check which on you have, and i found out that sometimes reassamble, and cleaning can help.
good luck.
torx is 5 and 6, 6 for opening the back of the phone, 5 for the screen part removal of the body and opening it. you need an opening tool!!
adhesive
is there a terrible adhesive between the screen and digitizer, as the second poster mentioned? how difficult is it to deal with?
just cut away with snapoff knives. It wil break in more pieses. (the glas that is) just be carefull, and take your time
Thanks
Thanks for all of the info, i went ahead and purchased the screen with the digitizer and tools. One thing i have noticed though is the d-pad has stopped working also, i'm using a custom rom so i'm not sure if it's just that or it's something else. i will prob re-image after i replace screen.
Abel2007 said:
just cut away with snapoff knives. It wil break in more pieses. (the glas that is) just be carefull, and take your time
Click to expand...
Click to collapse
Well, guess I was a smarty pants and bought my stuff before consulting XDA...as such, I ONLY bought the touchscreen rather than the entire new unit. Cheaper, yes, but I had no idea about the adhesive until just now. My only question is, once I remove the old screen from the LCD with a razor blade, how do I affix the new one?
Anyone?
i would love to know this too because i have to also replace my digitizer!
drokkon said:
Well, guess I was a smarty pants and bought my stuff before consulting XDA...as such, I ONLY bought the touchscreen rather than the entire new unit. Cheaper, yes, but I had no idea about the adhesive until just now. My only question is, once I remove the old screen from the LCD with a razor blade, how do I affix the new one?
Anyone?
Click to expand...
Click to collapse
I used rtv gasket maker the transparent blue one worked well.
you can find it in automotive section. Actually any silcone will work.
also can use double sided tape but needs to be very thin
I've already changing my digitizer, but it doesn't seem to work. So I've change the whole part. cost me $20 more on ebay.
my advice is to change the whole package with the lcd too.

Do I need a whole new screen or just a digitizer?

So I dropped my Tilt today and there are several big cracks through the glass front. The phone works fine and I think the LCD screen is alright. I think the cracks are just in the glass part and the LCD is fine but I cant tell. One thing for sure is that the touch response is all messed up and I can't align it. I see digitizers on ebay for cheap. Is that the glass part that is cracked? Can I just get that or do I need a whole screen assembly?
Thanks
I tried to change digitizer but it is a mess you need to weld it to the display and it is not so easy (I'm not an electronic technician), additionally it comes sticked all around the display border so it is hard to clean the display boundary to stick the new digitizer and also it is hard to remove the old digitizer because it is to weak to remove it in one piece. For this reason, at least for my experience, I rather prefer to change the display and digitizer together so you don't have to fight with the removal, welding and sticking the new digitizer. Hope help you take decission.

[Q] Display scratched / broken solution?

Hello. Like 1 week ago i had an exam and we did put phones in a class.I finished exam,i took phone and i went home.After 4-5 hours, i was using my phone and i rotated it to be in landscape and i saw that display is scratched / broken.Possible to be scratched because i feel a line on top phone (not on display) near samsung watermark,or possible to be scratched + broken.Let's say that is a scratch.In that day when i saw it,this scratch was up to half the screen in the diagonal.After 1-2 days, this scratch went until bottom left (in diagonal) lol.So,I'm thinking that is broken,but I'm not sure because it feel just like a scratch.The display is working fine,i don't have any problems.
So,my question is,is there any solution to make scratch "invisible",to dissapear?I saw on youtube some videos with i**** or other phones,but i didnt tried,in one of the videos was used banana lol.I won't buy another screen,i think it will cost around 100€...I wanted to sell my phone for like 100€.But now with that scratch...
PS: If i could find the guy who did this...I will request him 250€ (the amount which i paid for s advance),i will broke his phone and i will punch him
Rob, there's no real method to remove a scratch or fix a broken glass... The only option available is to change the touch screen part (dangerous for display if you are not expert) or the whole assembly (touch screen+display+middle body)
I remember once I had "Displex" paste, really fixed scratches but it's only for plastic (like non-touch phones), basically is a polish paste (don't use on glass, otherwise will be full of scratches)
My advice is: punch him if you find who did this
Inviato dal mio GT-I9505
Unfortunately that is not a scratch but a crack. Our display is composed of 4 layers. Display, touch, silicon, gorilla glass. Your glass is cracked. Fact is that you can buy glass really cheap (10e) but technology/tools (needed to remove and apply silicon) to replace it is not cheap. You could try to find out if anyone in your city does this kind of repair but I doubt that they will charge less than 50e. Good thing is that crack will not affect function of your phone in future, but obviously you cannot sell it for 100e any more.

d802 glass panel replacement help

hi...
i have a d802 device with broken screen glass...
touch & gestures work... screen works... it only has a few cracks on it...
can i just replace the front glass (cheaper solution?) or must i replace the whole digitizer and front panel...
any suggestions on trusted online shops thazt sell genuine LG d802 parts?
thanks in advance
Digitizer and glass is a single unit, and is readily available on ebay (for cheap) so there is that. The thing is that it is next to impossible to separate the glass from the display itself, and without professional tools the result of the reassembly will be quite awful. The best would be to exchange the display assembly as a whole. This is actually done quite easily. Lots of guides are available online, which just makes the process even easier.
Also for where to get the displays. You can actually contact LG or one of their service providers to purchase the display assembly. This way you are completely sure to get a top quality product. This is a tad more expensive though.
Ebay is also another place to get displays, the quality varies greatly here (have gotten anything ranging from completely original to barely functioning knock off. )
Etradesupply is apparently the best place to get displays at the moment, as their S+ grade is comparable to the ones you get from LG
http://www.etradesupply.com/lg-g2-d802-lcd-screen-and-digitizer-assembly-black.html
lusseMagnet said:
Digitizer and glass is a single unit, and is readily available on ebay (for cheap) so there is that. The thing is that it is next to impossible to separate the glass from the display itself, and without professional tools the result of the reassembly will be quite awful. The best would be to exchange the display assembly as a whole. This is actually done quite easily. Lots of guides are available online, which just makes the process even easier.
Click to expand...
Click to collapse
yes, i saw some youtube tutorials and removing glass from digitizer is a pain in the a$$, it can be done using hot air to melt the glue - but it's a time consuming process...
what interests me more is a whole screen section (glass+digitizer) and buying a proper genuine one for d802 (i think some people had issues with installing wrong panels from other variants to their d802 model)
thanks for your helpful answer :good:
60nine said:
yes, i saw some youtube tutorials and removing glass from digitizer is a pain in the a$$, it can be done using hot air to melt the glue - but it's a time consuming process...
what interests me more is a whole screen section (glass+digitizer) and buying a proper genuine one for d802 (i think some people had issues with installing wrong panels from other variants to their d802 model)
thanks for your helpful answer :good:
Click to expand...
Click to collapse
The thing is that the D800 and Veriozon models (as I recall) uses different digitizers. The connectors for these should not physically be able to connect to the D802 motherboard.
But to be able to cure the optically clear glue used for displays you will not only need an uv light but also lots of practice. Air bubbles get caught under the glass way too easily for it to be viable.
One more thing to note. the LCD itself is too easy to bend. Any flex will destroy it. Should also note that I too have watched the video where someone separates the G2 glass from the LCD and have tried to follow along multiple times. Every time resulting the same way. LCD breakage. Both times the polarizing filter got unstuck. So if you really want to go this route, my advice would be to find a professional to do the job.
Recently I had same problem: cracked digitizer. After my experience - first trying to replace only digitizer - NOT GOOD. I had to buy a whole set - digitizer and LCD. Just pay attention to your type of LG G2 - you can find all the types. But I am not sure if you can find a genuine replacement. Usually they are substitute, with no logo. But everything works fine. Pay attention also to where and how the connectors are placed and the most important thing - after you took out the old LCD give it a good heat to the back of the battery pack because is stuck with strong biadhesives and try not to pry too much the battery.
I just replaced mine G2 D802 (from 2013) Lcd, you need to replace the whole thing (screen+lcd)I think, you can buy the Lcd from the Internet. I bought the lcd about $50 and got the shop to replace it for $6. Now my G2 is like new.

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