After a trip to a shower my HTC One was declared dead (boot loop even after rice, humidity remover, heat, and others) I figured I would open the phone even it it meant that I could destroy it. It turns out that all you really need is patience and tools already available. Sure, I did bent the upper cover but, hey, everything else is intact.
I started by removing the volume button and started using those "guitar picks" around going down. Added some heat to unset the glue and moving slowly I started prying open the right side (when you are looking at the lcd). Than continued moving down until the left side was stuck. After that I went high on the volume button to set the whole right side open.
Now I'm using the other tool (the one that looks like a lever?) I started opening the left side. This side was a lot harder so I applied heat again. After that the glue wasn't an issue and it started to open nicely. Now I have the phone open and I'll see if I can get it working again.
Sorry for the English. I'm too excited to correct the mistakes and I'm not from an English speaking country.
Edit: added tools pictures.
The guitar picks were used to start opening the phone. The green and blue tool were used to open the left/top/bottom sides. The light blue tool was used mostly as a lever on the right side that was already open.
Edit2:
Video will be here shortly: http://forum.xda-developers.com/showpost.php?p=48832250&postcount=22
Overall experience while opening the HTC One (compared to the iPad 2/iPhone 3G/S/4S/iPod touch 5th/Motorola Atrix/Transformer Prime) I would give it a 4. The iPad being a 2 (almost impossible to open without a heat source and nearly impossible to mount a new glass without issues).
Uhuhu said:
After a trip to a shower
Click to expand...
Click to collapse
... Should I ask why?
To fix the purple tint caused by heat on the camera sensor. thats why.
chc31 said:
... Should I ask why?
Click to expand...
Click to collapse
After dropping my an old phone in the toilet (Before I went ) never again. My phone is barred from the bathroom unless its in my pocket. I guess the OP wanted to have some alone time with his phone.........................
chc31 said:
... Should I ask why?
Click to expand...
Click to collapse
TuneIn, on the upper part of the bathroom/shower (we mostly call it "box" to take a shower while listening to music.
Wow I think that this would be very usefull for other people who want open it...
Von Ropen said:
Wow I think that this would be very usefull for other people who want open it...
Click to expand...
Click to collapse
Well, it clearly isint. He just wanted everyone to know that he was able to open the phone.
Ok you did a pretty amazing job. Now let's move on.
Sent from my One using xda app-developers app
jags_the1 said:
Well, it clearly isint. He just wanted everyone to know that he was able to open the phone.
Ok you did a pretty amazing job. Now let's move on.
Sent from my One using xda app-developers app
Click to expand...
Click to collapse
Sorry you meant he was able to break the phone
Von Ropen said:
Sorry you meant he was able to break the phone
Click to expand...
Click to collapse
Phone is back. 100% working again. After opening it up I used a hairdryer on the "on/off" switch, left it open to cool down. After an hour I left it charging and left it there. It wasn't boot looping anymore and it turned on.
Uhuhu said:
Phone is back. 100% working again. After opening it up I used a hairdryer on the "on/off" switch, left it open to cool down. After an hour I left it charging and left it there. It wasn't boot looping anymore and it turned on.
Click to expand...
Click to collapse
But it is the same phone? how did you repare the top right corner of the screen that was completely off centered?
Von Ropen said:
But it is the same phone? how did you repare the top right corner of the screen that was completely off centered?
Click to expand...
Click to collapse
Same phone. I just glued it back to position with a superglue (superbonder is the trademark I've used). Used a toothpick to smear it gently and used some phone books to keep things in place. The top aluminum part was bent but the superglue is now holding it.
About the video, I'm not sure I'm willing to open it again. It would be awesome tho..
I have read that under the speaker grills there are screws holding it together.. did you encounter these screws?
twerg said:
I have read that under the speaker grills there are screws holding it together.. did you encounter these screws?
Click to expand...
Click to collapse
Found no screws. It's stuck together in one piece by some clips on the white border only. It's also glued around the same white border.
Follow-up: The phone is still working fine but not charging anymore. I'll wait to open it again later, in about two days or so, and than I'll video the process to see if there's something wrong. Hopefully it's fixable. And I hope I can open it without issues just like the first time. If it doesn't charge I'll see if I can get a new charging port (maybe the water did some damage by rusting the contacts of the port).
It seems that the phone is playing tricks on me. It's charging today.. Go figure..
Could be the water damage. I read where people with different phones talked about the phone acting weird like it just stop charging or the screen won't come on. That would come and go without warning. Remember my father in law damaged a phone once when he was a truck driver and delivering his load in to a walk in freezer. He made many trips in and out and I guess from the extreme cold to heat made it condensate inside the phone. Where are the water damage labels on the phone beings you had it open?
Sent from my Nexus 7 using Tapatalk 4
Double post.
Water labels are intact and since htc left Brazil we don't have an authorized to fix it so I opened it and saw that there is no water indicator in red. The water damage sticker is below the flash. Look at the pictures and you'll see a white sticker below the flash and another close to the usb port on the lower side of the phone. Not sure if the second one is a water damage indicator..
I'll keep using the phone till I get some alone time to open it. Tho I'm worried that I might break the phone this time (since it's working again - for no apparent reason).
So, yeah, there's an issue with the charging. Not sure if it's the port or the phone. Tested different chargers and it won't charge while it's on nor when it's off. After a day off it charged (yesterday) but now it won't charge. This sux. I have to find out what's going on. So, yes, I'll have to open it again. I can't have a phone that will be used to drive using gps all day behaving it like that. Phones won't last 4 hours on battery alone while using gps.
Added new picture with tools used..
Sorry for the double/triple post, but it's the best way to keep everyone informed..
If I helped you in any way please consider donating something so I can buy a new phone. The HTC One is dead due to an issue with the USB connector or something else that I'm still not aware. I will use this phone as a test bed from now on to see if I can fix other stuff without breaking too so I do need a new phone. You can donate here: http://bit.ly/1a9vqqg
Thanks and enjoy the video! I hope it helps a lot of people.
A video will be uploaded here: (it's 04:37am GMT -2) and still 205 minutes left to upload. Video will be 720p and it's 1.2gb so yeah, it will take a while. But now I'm off to bed. And sorry for my english. I'm ok writing but I'm so so when speaking. I said I would edit the video but since it's just shy of 19 minutes I figured I would leave it like that.
If you guys have any idea on what to do to help me fix the charging issue I would see if I can try that now that the phone can be easily opened. :fingers-crossed:
Related
OK, it happened. It was powered on, splashed, went under for about 3 seconds and I pulled it out. I immediately pulled the battery and set it out to dry. so now 24 hours later I power it up and .... well the lcd is toast. I can heat everything power up and navigate blindly somewhat. I open the phone and then I hear it dialing numbers randomly.
OK, that is all I can figure out so far. The question is do you guys think it is worth trying to replace the lcd and see if that fixes the majority of the problems or a waste of time?
In the mean time I have ordered a tilt/8925 or whatever they are calling it now.
Ouch...some users say that you need to open it up and clean it with some solution to get rid of the stuff that the water puts on there. I've always been paranoid about that (PDA is the new newpaper in the can...).
Its fairly easy to open, just make sure you download the guides(in wiki under htc service manual). Its a HELL of a lot EASIER if you also have the number 6 torque key... Once you do it you'll see its fairly robust and takes an awful lot of force to break., just follow the steps one at a time and TAKE YOUR TIME cos theres no first prize for flying through the disassembly and finding you forgot to put something back or missed a screw.
Cheers...
Steelpreacher;
Just as a side note; my 8525 has hit water twice! The first time it fell into my garden pond; just barely hit the water when I caught it but it did get wet. After doing 'all the right things', I was in the same boat as you--no lcd; could navigate blindly. Took it apart somewhat and left it open. When I came back to it about 3 weeks later, it was alive and well! Screen was fine and all the keys worked.
If you do buy another phone as I did, keep the other around as a spare and check it again in a month or so. It may surprise you!
I wounder if you use it as toilet paper or what.
Selling?
Would you like to sell it? Coming back from all that damage may be pricy.
Vicious said:
Would you like to sell it? Coming back from all that damage may be pricy.
Click to expand...
Click to collapse
Vulture...
Man is this the stupidest problem ever...
The good news: I finally got my DHD yesterday...
The bad news: The battery cover is as bad as I've been hearing. For some reason I couldn't put it back on. So I pushed the Battery as far in as I could in order to put the cover on. The phone works great, but now the battery is stuck inside and won't slide out by itself and I don't know how to take it out
Please Help...
Put your fingers flat on the table, same width as the battery door.
Rest the DHD on your fingers (so that the battery door is facing the table.
Raise the DHD an inch or two and bring it down on your fingers (not so hard that it hurts).
Keep doing this, the battery will work its way free and drop onto the table.
I'll add a pic in a sec...
Thanks James, this definitely sounds very doable; I'm giving it a try now!
The battery has moved about half an inch now!! This is working *jumping up and down with joy*
I got the battery out!! Why does everyone else's battery just seem to slide out by itself? I thought it was because I pushed it too far in, but even when the battery is half way out, I still have to pull it out with some effort...
Maybe my phone just has a lot of "friction"? When I watch those YouTube videos, everyone seems to glide their fingers smoothly across the screen, but when I do it, it feels very fricative...do you guys put on hand lotion or something...
Do not press the screen too much, only a slightest touch is needed. Also if you have moist hands, it makes swiping the screen harder.
nubicurio said:
The battery has moved about half an inch now!! This is working *jumping up and down with joy*
I got the battery out!! Why does everyone else's battery just seem to slide out by itself? I thought it was because I pushed it too far in, but even when the battery is half way out, I still have to pull it out with some effort...
Maybe my phone just has a lot of "friction"? When I watch those YouTube videos, everyone seems to glide their fingers smoothly across the screen, but when I do it, it feels very fricative...do you guys put on hand lotion or something...
Click to expand...
Click to collapse
Probably because its a new phone. You have to play with it a little bit until the oil from your skin lubes up the screen. Then its all slidey slides.
I had a similar problem with my first DHD... part of the the plastic wrapper around the battery had folded back on itself along the forward edge of the battery. That caused the battery to get wedged inside. A little trimming of the plastic wrapper with a craft knife fixed it... YMMV
Sent from my Desire HD using XDA App
you sure you didnt put it back in upside down or something?
rossysaurus said:
you sure you didnt put it back in upside down or something?
Click to expand...
Click to collapse
I'm pretty I didn't because the phone was working but seriously I could totally go without the cover; the battery really gets stuck in there when it's inside!
nubicurio said:
I'm pretty I didn't because the phone was working but seriously I could totally go without the cover; the battery really gets stuck in there when it's inside!
Click to expand...
Click to collapse
No you can't - the WiFi/BT antenna is in that cover .
would've given you some extra grip tho
Now seriously, if when u look at ur battery there's no visible flaws that u can safely and/or easily remove and if your screen keeps giving you the finger in my opinion you should return it for a replacement. There's been enough faulty hardware cases, the folks at HTC know the drill by now. If that's not an option, sell it on ebay ( or your local online market ) and grab a new one;]
tkolev said:
No you can't - the WiFi/BT antenna is in that cover .
Click to expand...
Click to collapse
And I was wondering the whole time why that piece of plastic would cost 19 Euros!
bahkata said:
would've given you some extra grip tho
Now seriously, if when u look at ur battery there's no visible flaws that u can safely and/or easily remove and if your screen keeps giving you the finger in my opinion you should return it for a replacement. There's been enough faulty hardware cases, the folks at HTC know the drill by now. If that's not an option, sell it on ebay ( or your local online market ) and grab a new one;]
Click to expand...
Click to collapse
AWWW it's just my stupid, clumsy fingers are still trying to learn how to swipe across the screen...think I'm getting a hang of it now ...luckily no major flaws with my DHD so far *knock on wood*
Join the club and stay in
I got an aftermarket battery stuck in my DHD and had basically given up on getting it out until I found this thread. Nice work! Worked a treat after tapping it for what seemed like a couple of minutes.
Slow and steady wins the race!
Cheers guys
Hi everyone,
My phone survived falling off the roof of my car and being run over by another car - the leather slip case kept it intact. Initially I thought I'd got away with it, but its picked up a screen defect which has got progressively worse. Essentially the colours go screwy - a green tint with blue bands which move across the screen. Its definitely a loose wire as I've been able to "fix" the fault by tapping the back of the phone.
Until tonight, where its not going back to normal no matter where I tap or how hard. I'm not afraid of disassembly if its fixable - found a video online where they pull it literally to bits. But if I go buy the torx driver is the ribbon cable into the screen reasonably easy to get to? Anyone done it?
Still got 4 months left on my contract, so will be a little sad if I have to resurrect my Hermes.....
The blue thing usually happens with my phone. Got my screen replaced like a week ago and the problem persists. What I do is 'flex' the screen in the top left and bottom right and that usually works. Try like bending the screen (sort of) and it will probably work.
Skellyyy said:
The blue thing usually happens with my phone. Got my screen replaced like a week ago and the problem persists. What I do is 'flex' the screen in the top left and bottom right and that usually works. Try like bending the screen (sort of) and it will probably work.
Click to expand...
Click to collapse
Success!!!!! Sir, you are a genius, thankyou!
auximinies said:
Success!!!!! Sir, you are a genius, thankyou!
Click to expand...
Click to collapse
No problem, any day. Don't even ask how I figured out that that's the way it can be fixed haha.
Sent from my HTC HD2 using XDA App
My god how did your phone survive that
Sent from my HTC HD2 using XDA App
I just noticed a moment ago that when I tap my phone hard enough it turns off. For example sliding the kb open or setting it down on a table hard enough. I have to be real gentle with it now. And I have never been very rough with it its in great condition. I dropped it once on carpet a few months ago. But that's it. I have 2 batteries and I switch them out every other day. Could that have something to do with it? I really do not want to goto the sprint store and have the look at it because ill have to flash back to stock and deal with their lines and annoying staff. Anyone know what I can do to fix this issue?
Sent from my SPH-D700 using XDA App
Is it possible that you thumped it hard enough to knock it unconscious? Just kidding, sounds like you have a short somewhere.
Sent from my SPH-D700 using XDA Premium App
screw that. flash it back to stock and take it in. i wouldnt be able to deal with that.
^^ I agree
However, take a look at your battery contacts. One of my 3 is noticeably bent "differently" but not necessarily broken than the other 2 (although it's NEVER lost contact even in a fall). Maybe it's not maintaining the tension it needs to keep the connection.
kycrop44 said:
I just noticed a moment ago that when I tap my phone hard enough it turns off. For example sliding the kb open or setting it down on a table hard enough. I have to be real gentle with it now. And I have never been very rough with it its in great condition. I dropped it once on carpet a few months ago. But that's it. I have 2 batteries and I switch them out every other day. Could that have something to do with it? I really do not want to goto the sprint store and have the look at it because ill have to flash back to stock and deal with their lines and annoying staff. Anyone know what I can do to fix this issue?
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
Happens to me when I close the keyboard too hard so I put a piece of thin cardboard between the cover and battery to secure it even more and no more problem.
kennyglass123 said:
Happens to me when I close the keyboard too hard so I put a piece of thin cardboard between the cover and battery to secure it even more and no more problem.
Click to expand...
Click to collapse
doesnt paper heat up the battery more? and i think the OP should place a claim on the phone (you should too). you people paid a lot for your phone and it should work (without putting cardboard)
alexnaoumi said:
doesnt paper heat up the battery more? and i think the OP should place a claim on the phone (you should too). you people paid a lot for your phone and it should work (without putting cardboard)
Click to expand...
Click to collapse
your right I did pay alot for this phone and it should work properly without ghetto rigging it. It actually stopped for now idk what did it, I tried a number of things including pressing the battery in harder and that may of solved it, but I bet it does it again one day. plus I wouldnt mind having a brand new one if thats what they would do to fix it lol
That happened to me a couple times, but it was the extended batteries and thus generic cover that doesn't fit well to begin with.
alexnaoumi said:
doesnt paper heat up the battery more? and i think the OP should place a claim on the phone (you should too). you people paid a lot for your phone and it should work (without putting cardboard)
Click to expand...
Click to collapse
Then don't cover the whole battery. Use a small strip runnin diagionaly and fasten it to back cover is it don't move around when u drop your phone again.
Try a little peice of paper in between the batt and the wall of batt hole.
Epoxy your battery in place.
Or u can stop abusing your phone.
Tell your phone your sorry..
Sent from my SPH-D700 using XDA App
alexnaoumi said:
doesnt paper heat up the battery more? and i think the OP should place a claim on the phone (you should too). you people paid a lot for your phone and it should work (without putting cardboard)
Click to expand...
Click to collapse
Not anymore than sitting on my hip. Paper is an insulator so actually would help in Florida sun. But my issue is a $21 extended battery and extended back, not stock. So a small piece of cardboard helps to keep it really tight. Also probably because I have dropped my phone a few times.
keith5039756827 said:
Then don't cover the whole battery. Use a small strip runnin diagionaly and fasten it to back cover is it don't move around when u drop your phone again.
Try a little peice of paper in between the batt and the wall of batt hole.
Epoxy your battery in place.
Or u can stop abusing your phone.
Tell your phone your sorry..
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
LMAO!!!! Nice...think I will download a flowers jpg for my phone now.
My first epic did this. It's a manufacturing problem. I took it back and sprint replaced it. (I returned it the day after I bought it, though).
I have had this happen to me and all I did was flash a different rom. It seemed to be a had flash or the rom I was using. That is assuming you are rooted and running a custom rom. Give it a try. Flash something else and see if the problem goes away. Mine did.
I was on my way into the sprint store as I was restoring a different rom and after restoring i could not reproduce the power down when bumping or sliding keyboard. That's how I figured out it had to be the rom. I have not had it happen since, that was 5 months ago.
desire s turns off
Ive had my desire s for less than 2 months and ive had to leave it back for this reason. The slightest of taps to the bottom right corner and off it goes.
Estimated return time from the car phone warehouse is 1 month. whahahahah....
Mine does the same thing, bougt mine off ebay, esy fix I just took a very small piece of electrical tape, made it so its sticky on both sides and stuc it behind the battery
Sent from my SPH-D700 using XDA App
I had this problem also. Mine was one of the three contacta on the phone broke. The brass contacts that touch the battery.
Sent from my SPH-D700 using XDA App
kennyglass123 said:
But my issue is a $21 extended battery and extended back, not stock
Click to expand...
Click to collapse
Same here! With the stock battery it works fine, but with the extended to hard of a jolt will reset it.
Hi all
So I just installed a few games on my Nexus 4 this evening and noticed some areas of the screen not responding. Its isolated to about a 1cm from the left on my screen. When I enable the "show touches" option under developer options I can see the ball jump when I move my finger over the area. Whats odd is that the very edge reports OK and I can swipe to Google Now without issue.
I was using PA with Franco and just as a test revered to stock and it seemed to work however after about 5 mins it went back to the same behaviour. Once again I installed my stock nandroid and now its just jumping like it was. So confused!
I guess some software is running and causing issue or the screen is over sensitive in that area me touching it is causing issue. Its worth noting that I changed the screen a few days ago so it could be the connectors but could it be isolated due to a connection?
bert682 said:
Hi all
So I just installed a few games on my Nexus 4 this evening and noticed some areas of the screen not responding. Its isolated to about a 1cm from the left on my screen. When I enable the "show touches" option under developer options I can see the ball jump when I move my finger over the area. Whats odd is that the very edge reports OK and I can swipe to Google Now without issue.
I was using PA with Franco and just as a test revered to stock and it seemed to work however after about 5 mins it went back to the same behaviour. Once again I installed my stock nandroid and now its just jumping like it was. So confused!
I guess some software is running and causing issue or the screen is over sensitive in that area me touching it is causing issue. Its worth noting that I changed the screen a few days ago so it could be the connectors but could it be isolated due to a connection?
Click to expand...
Click to collapse
Ok so I was able to use the old screen (cracked) in a frankenstein fashion and it works 100% of the time. The current seen seems to work for a while and then goes back to missing that area.
Will try and return for a replacement.
bert682 said:
Ok so I was able to use the old screen (cracked) in a frankenstein fashion and it works 100% of the time. The current seen seems to work for a while and then goes back to missing that area.
Will try and return for a replacement.
Click to expand...
Click to collapse
Update 3
So the issue has progressed to being intermittent. It will be broken for a few hours, then work OK for a few. This can happen at random,so, not plugged in as I suspect heat was an issue. I can get a text, its broken, pocket the phone and in 5 mins when I get the reply it can be working again.
Ive made a video of what its doing, notice the white dot "jump" when compared to the right.
https://drive.google.com/file/d/0B0i6bdx3f4lWd3VmTWZXM0tjMTQ/edit?usp=sharing
Any suggestions?
You need a different screen if you want to fix it.
bert682 said:
Update 3
So the issue has progressed to being intermittent. It will be broken for a few hours, then work OK for a few. This can happen at random,so, not plugged in as I suspect heat was an issue. I can get a text, its broken, pocket the phone and in 5 mins when I get the reply it can be working again.
Ive made a video of what its doing, notice the white dot "jump" when compared to the right.
https://drive.google.com/file/d/0B0i6bdx3f4lWd3VmTWZXM0tjMTQ/edit?usp=sharing
Any suggestions?
Click to expand...
Click to collapse
Check that the flex cable isn't damaged, dirty or loose before you bother with a replacement. Either way, you probably need a replacement screen
lopezk38 said:
Check that the flex cable isn't damaged, dirty or loose before you bother with a replacement. Either way, you probably need a replacement screen
Click to expand...
Click to collapse
Yea I took it all apart and while the new one was connected I was able to connect the old one, upside down etc. It worked OK. Did a bit of a blow and properly pressing down on the connectors.
I could accept the screen is at fault at return it but when the issue is not 100% of the time I know my luck will be that when it gets tested at the sellers end it will work, get sent back to me and be broken again.
Have some monitoring apps running now so I can tell of its heat. Since this side is away from the battery im less incluined to think its heat from that. The motherboard does run down that side so it could be something in that? Ever seen any reports of that getting too hot?
Could even be heat from the antenna cable somehow?
Strange that it spans the whole length though.
Ill risk the return I think, got a video of it being broken so will see what happens.
Run over to Radio Shack (or whatever the equivalent is in what ever country you're in - I don't know where you are) and find a product called Deoxit/Progold. Deoxit cleans the contacts from oxidation, Progold enhances conductivity. Or find something similar.
This stuff is great for blasting inside headphone jacks to get rid of the "scratching" when your plug gets moved around, to fix iffy USB connections, etc. A little goes a long way. I don't know if it'll solve your screen issues, but it's worth a try, and if it doesn't work, you can still use it on other things, so it's not a waste of money.
Planterz said:
Run over to Radio Shack (or whatever the equivalent is in what ever country you're in - I don't know where you are) and find a product called Deoxit/Progold. Deoxit cleans the contacts from oxidation, Progold enhances conductivity. Or find something similar.
This stuff is great for blasting inside headphone jacks to get rid of the "scratching" when your plug gets moved around, to fix iffy USB connections, etc. A little goes a long way. I don't know if it'll solve your screen issues, but it's worth a try, and if it doesn't work, you can still use it on other things, so it's not a waste of money.
Click to expand...
Click to collapse
Wow, that stuff isnt cheap. Lets hope a little does go a long way!
Thanks, have ordered a small bottle, will give it a go.
I noticed that my new screen is genuine LG (at least its stamped all over it) but the one I removed seems to be a 3rd party replacement. Its got some areas that "look cheap" in comparison. Its got a small foil coating over the flex cable where as the one I removed didnt. I assume its to protect and move heat away?
Few forum posts mention the use of 3rd party chargers....I have used a cheap one when I am in work. I have used in on my old HTC Desire HD and my Lumia 520 and never had an issue. Do you think it could have damaged the digitiser?
bert682 said:
Wow, that stuff isnt cheap. Lets hope a little does go a long way!
Thanks, have ordered a small bottle, will give it a go.
I noticed that my new screen is genuine LG (at least its stamped all over it) but the one I removed seems to be a 3rd party replacement. Its got some areas that "look cheap" in comparison. Its got a small foil coating over the flex cable where as the one I removed didnt. I assume its to protect and move heat away?
Few forum posts mention the use of 3rd party chargers....I have used a cheap one when I am in work. I have used in on my old HTC Desire HD and my Lumia 520 and never had an issue. Do you think it could have damaged the digitiser?
Click to expand...
Click to collapse
Interestingly enough , the original digitizer is wrapped with aluminum tape. Some knockoffs have a better cover in fact. They use a hard aluminum sheet instead of aluminum tape. Some knockoffs don't have that shielding which is bad because that tape is there to keep the IC from getting spammed with useless data by radio frequencies and such.
If you haven't dropped your device , i don'T think it is likely that there is a problem with the glass. It's most likely the IC.
You could transfer your old flex to your new glass which is easy but you need some seriously steady hands.
When you remove the glass from the frame , you will see the flex cable's contact zone. It's basically the part where it connects to the glass. If you heat that area up with a heat gun it's gonna come right off when the solder beneath melts. Take out the new one and the old one. You need a flathead tip for your solering iron , which is like a flathead screwdriver. Simply take some solder and spread that solder around the contact dots , don't worry it won't stick to the plastic but it will melt if you keep it at the same spot too much. When you're done spreading , there are two dots with which you can align your old flex cable to your new glass. Use some adhesive tape around the alignment dots and Align the dots with your flex cable (you'll know which dots when you see it because it's orange and kinda stands out) press it so the adhesive holds and then use your heat gun and melt the solder to the contact zone.
It's actually easier than it sounds.