So my digitizer/LCD has developed an intermittent dead row about 1/3" tall, if I apply pressure as I touch it then it works. Sometimes it just works normally. So this got me thinking, since there is a grid of capacitive lines that basically just conduct with pressure, and that these traces go off the edge of the LCD to join together in some sort of microcontroller, there might be a small circuit trace on the edge of the screen that could be fixed with heat and pressure. Has anyone tried this?
My plan is to remove the LCD and frame, then remove the battery. I will then get it very hot with a heat gun then place a stack of books on the screen to clamp the traces into position.
I have problem only part of the screen, pressing does not come back to work. I believe that there is no hardware problem, just software ... but I do not know how to solve .... I wish I could help you!
Related
Hi, i have been experiencing a screen display problem.
When i power on the Hermes the screen does not power on.
If i then place the Hermes on a hard surface and press down hard on the long sides at the edge of the screen i can make the backlight and display appears.
However, if i release this pressure the backlight remains on but the display will become scrambled. The scrambled display is variously showing white noise, scan lines, mispositioned graphics, and ultimately fading to white.
Also, if the phone rings the audio is distorted and crackling.
I have dismantled the Hermes as far as removing the housing for the LCD from the rest of the phone. I then opened up this housing and disconnected / reconnected the LCD flex cable that is by the very edge of the housing. Then reassembled phone. No improvement was made, in fact the display issue was made more tempermental!
However the phone stil works as i am using it at the moment as a 3g modem for my laptop.
But it is extremely frustrating / near impossible to use it for any other purpose in this condition!
I am wondering as to what the problem could be and how i might solve it?
I am thinking that the problem must be due to a poor connection / oxidation / dry solder somewhere.
I would appreciate advice as to what i could do to solve this issue myself.
Next steps???
>>> Would there be any use in spraying a little WD40 into cable contacts?
>>> Someone has suggested passing a heat gun over the PCB to bond any solder that may have cracked.... Although i am sure that this is a trick that can work with old PCBs that he plays around with i am not so sure that this would be such a good idea on the flimsy multi layer boards in the Hermes.
Let me know what you think of these ideas...
white screen
Hi..not sure which version of the hermes you have, but this has been a common problem for years. My Cingular 8525 did the same thing. I finally figured out while placing the phone into a desktop charger that it was putting pressure on one lower corner of my phone and it would go white. It got to the point any pressure on it would cause the screen to fade to white. I contacted AT&T tech support about it and even though fone was out of the warranty period(over a year) they sent me a refurb ATT branded 8525 at no charge. I've had that one now close to two years with no problems.
Hi Oleschuldad, thanks for your reply. I have the Hermes100 branded as the "ORaNGE SPV M3100". Yes i have read that the white screen issue is a major blight for the hermes phone. From what i have read It seems that there are numerous causes and the problem can be difficult to trace to a specific component. The problem that my phone has is the opposite to the what you had with your phone. In that i must EXERT PRESSURE on the phone to be able to read the display. The indication is such that i am certain that it must be the result of either loose connection / bad solder / corrosion somewhere.
Think that i will get a can of electrical contact cleaner spray and clean the contacts on the flex cables.
Looks like corrosion is definitely an issue in my phone as there is some green oxide on the round watch type battery that sits on the main board next to the contacts for the main battery.
I will have to strip the phone down again at the weekend.
Hey im panicing so bad rite now. I just broke my htc's LCD screen ! Mad sad from this disaster . Dont got much money so can someone please tell me whats the cheapest or best way to replace or fix it ? I really need help because im freaking out!
The repair choices
There are basically two choices. Doing it yourself or having it repaired.
In either case the most straight forward is to replace the screen and digitizer as one unit. I expect you can still see things on the screen yet its cracked from one corner. Its the digitizer on the top that usually suffers but its hard to replace by itself. There is a YouTube video showing how to do this (search on Replace Touch Screen on HTC HD2 on YouTube).
If you are game to do it yourself (an electronics tech would be able to do it fairly well, though it is still fairly difficult) then you can buy a complete screen and digitizer off ebay (around $100). Getting the unit out of the case is tricky as its held in with 4xT5 Torx screws (easy bit) and lock notches around the case (tricky part). I found thin stiff plastic bits slotted in between the module and the case works well at releasing the locking notches. Then press out at the top of the battery area, while pulling the top edge of the plastic case out and down with your finger nails. One side at a time. Don't forget to remove the SIM card and SD card as these will hold the module in place if not removed.
The double sided tapes used to hold the screen in place are a problem, but warming them up with a carefully applied heat gun does release them. I would add that there is no need to unscrew any of the electronics boards as the screen can be replaced without doing this. Releasing the screen ribbon cable connector is done by flipping up the black locking section on the ribbon socket. Slide in the new cable, lock it down, then curl it around as you slide it backward under the metal case so that the curl in the cable occurs in that small space under the metal rather than being folded over sharply, which can fracture the ribbon cable "wires" rendering the screen dead.
Press the screen back down onto the tape (hopefully the tape has remained slick enough as its all that holds the screen in place). Be careful to align the edges and top and bottom correctly, otherwise your buttons won't work and the screen will not sit in the case properly. You can test the buttons as you align to feel for the slight click. Be sure to test all four as alignment left to right is just as critical for full function as up and down. You should also watch to be sure the light sensor little plastic bit (its a small clear cube of plastic) doesn't fall out and disappear while you are doing the screen swap and it stays in place during reassembly.
Then press it home into the plastic case. I remove the volume button (if it hasn't fallen out already) as it tends to push the volume button pads out of alignment (they are only held in with yellow tape (be careful not to loose them). Then with it all snapped in place pull out at the volume button section and slot the button back in place. Orientation is fairly obvious with the button points lower down and the joining bar going behind the case plastic to lock it in place (all with the screen facing upward). You may find the volume button only works if you press down on the screen slightly. This movement will be taken up when you screw the 4 torx screws back in.
Finish by powering up (with fingers crossed) and test. Hopefully all working.
Alternatively, if thats put you off doing it yourself, get it repaired by a service agent (around $300). Then it comes back all done with a small warranty. Most of the phone providers will be able to direct you to a good independent service agent.
I replaced my digitizer recently and when I put the phone back together and turned it on, the LCD looked different any thoughts or suggestions. I looked through some other threads but nothing described look like the problem I am having.
I guess the digitizer isn't original and polarizes the light in a different way, giving the strange optical effect.
Another issue maybe the digitizer is stuck tightly against LCD, try to put between the two a strip of thick adhesive tape around the edges, avoiding tight contact.
Or worst, maybe you damaged the LCD while disassembling, to verify this lift the digitizer and see if it looks the same or not without digitizer.
It looks as though it is a similar problem to * HERE *
I you go into your Web-browser and press the menu button, then view page info.
Look at the background (the webpage). What are the colours like?
I recently broke my 1 month old S5 LCD. Outer screen is just fine, but the LCD has paper thin glass, and it unfortunately met it's demise after a misplaced toss. I ordered a new LCD digitizer assembly and screen adhesive, then disassembled my broken phone. When I disassembled it there was either adhesive, or gasket material that was on top of the plastic flaps that go around the back and recent buttons (I assume adhesive), and also around the home button which I assume is important for functionality, and for water resistance. To make a long story short I assumed that this material would be provided with the screen adhesive so I removed the material from the back and recent buttons (it was already slightly damaged on one, and almost all peeled off of the other. I left the home button material because it seemed weak and I didn't want to break it. Also, some of this material had been peeled off/torn off surrounding the home button. After reassembling without the adhesive/gasket in these areas my phone now presses back or recent at random and it makes the phone almost impossible to use because it will exit out of programs or just start doing crazy stuff all on it's own.
My question is, is there somewhere that sells the adhesive/gasket for these three locations, if so where, and if not are there any suggestions of an alternative to the stock material. I am wondering if anyone has had some experience with this issue could chime it. I greatly appreciate any help.
Sincerely,
Dustin
I've just replaced the screen and digitiser in my wife's (original) Nexus 7. The new screen works but the digitiser is somewhat erratic - it mostly works when held in the hand, but becomes fairly unsensitive when placed on a table.
At first I thought it was a dodgy connection and holding it would put pressure on the ZIF connector on the motherboard for the digitiser. But I've discovered that if I place it on a thin table mat it is erratic, but putting my hand under the mat (so not changing the pressure on the back of the tablet) causes it to be more reliable, so I'm guessing its being affected by rf-coupling with the "holding" hand.
Anyway, I'm wondering if there's any way to recalibrate the sensitivity of the screen to see if upping the sensitivity will help?
Many thanks.