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guys,i have a serius problem with my htc tytn.my lcd is flashing,horizontal stripes are going up and down all the time.the screen is for the moment full of grey rounds,but after some sec it is ok for some minutes.it's look's like the software mistake,so i flash my rom and it is the same thing.is lcd out or what? i realy need some usefull advice!
thanks
i forgot to tell,that those flashing stripes are mostly when i chagre the pda.they are on when pda is not charging,but some time to time.when it is on cable,it is aufwul!
c'mon guys,my lcd is blinking like crazy.i need a solution.
need more info...really
It could be a range of things. Does it change when you move it, press the sides,tap the screen? Does it do it by itself.....when it is just sitting there...no external movement. More info needed.
yxgwfty said:
It could be a range of things. Does it change when you move it, press the sides,tap the screen? Does it do it by itself.....when it is just sitting there...no external movement. More info needed.
Click to expand...
Click to collapse
it has minor efects,if i tap on the screen when he is doing this.if i slide him to landscape,screen is turn,but stripes are going up and down like in portrait .it is do it by itself,yes.i put him on table,and suddenly bum,start flashing.
i thought there is some power bricks,you know,like the lcd is touchy for the minor change in power.but it is weird,realy.
i take some pictures with one old vga camera phone.hope anyone can help me with the problem.
http://img145.imageshack.us/img145/7804/slika008qi7.jpg
http://img71.imageshack.us/img71/7509/slika006wl9.jpg
http://img100.imageshack.us/img100/6112/slika010ap3.jpg
http://img74.imageshack.us/img74/1262/slika010qb9.jpg
it sounds as if the connector inside the phone is coming loose. If you are able, try and pressure the connector so the connection is good.
http://blog-imgs-1.fc2.com/i/n/u/inuchanbt/CHT9000_dismantle05.jpg
http://blog-imgs-1.fc2.com/i/n/u/inuchanbt/CHT9000_dismantle06.jpg
Thats the connection i am referring to. If you need assistance in dismantling the hermes, try the mod, Mike Channons guide
If it is not this, then i am not sure...
Do this as a last resort as it will void any warranty you may have with your phone... it also sounds as though the screen is on its way out.
miffymiffy said:
it sounds as if the connector inside the phone is coming loose. If you are able, try and pressure the connector so the connection is good.
http://blog-imgs-1.fc2.com/i/n/u/inuchanbt/CHT9000_dismantle05.jpg
http://blog-imgs-1.fc2.com/i/n/u/inuchanbt/CHT9000_dismantle06.jpg
Thats the connection i am referring to. If you need assistance in dismantling the hermes, try the mod, Mike Channons guide
If it is not this, then i am not sure...
Do this as a last resort as it will void any warranty you may have with your phone... it also sounds as though the screen is on its way out.
Click to expand...
Click to collapse
ya,i thought it is screen fault,but i doubt,because phone is relising scratchy voices trouht speaker.i will try that conector.i don't have warranty any more,so no big deal if i void this.
duh,i am not realy sure witch connector might be lose? i must say,my pda drop on the floor about 2weeks ago.maybe from there are these problems?
My First Post! How's it going everybody! (Newb Alert)
I just purchased a Bell HTC Desire Z from a classified ad off of an older man who found that the phone wasn't fully functioning. The poor guy probably paid around $400CDN for the phone, but I ended up eventually buying it from him for $250.
Here is what is wrong with the phone:
1. Power Button-does not work, neither on or off...basically fully unfunctional and only way to turn phone off is battery pull...fun stuff! (planning on using the Teardown/Repair guide by verkion - recommended?)
2. The In-Call speaker (where you put your ear while talking on the phone) seems to have very limited sound, perhaps something has been destroyed on the inside, how all other sound mechanisms work, such as the external speaker and internal speaker w/ headphones. (planning on using the Teardown/Repair guide by verkion - recommended?)
3. The Digitizer, well parts of it (along the left edge of the phone when upright) are unresponsive, so called blind spots which when touched are unresponsive on the digital keyboard along with the home button (house shaped icon) - especially frustrating when browsing web pages because I have to click back like 10 times to get home... (planning on using the Teardown/Repair guide by verkion - recommended?)
4. It is a Bell branded phone, Locations does not work! however I have done the research on the forums and I think I can figure out the whole Rooting thing out, but advice is appreciated! (planning on using gtrab's FAQ for Dummies for the rooting, s-off, and de-branding)
Now...I am not really technologically inclined to the level most of you probably are, but I am good with my hands and really interested/curious about this whole mission I need to complete, so I can fix this phone myself instead of paying $100 for cell phone repair...plus its a nice challenge right?
Do you guys recommend that I take care, or at least attempt to fix the power button issue before I root the phone to a previous, unbranded firmware which will allow me to use Locations? This only makes sense right, because I am going to need the power button for that process?
I know this is a lot to ask, but I just need some pushes and shoves to get me on the right track to try and get this to work, so if it is technologically impossible or excessive...please let me know how I can fix 4 of these problems methodically in a safe and professional way!
Once again, I appreciate it.
Thanks in Advance
EDIT: My prediction is that the individual who originally owned this phone dropped it and as a result the digitizer, power button, and speaker were all affected...but of course I am no expert.
To me it sounds like the flex cable has been damaged. It would definitely cause all these things at once.
I'm pretty sure you need to fix the power button before rooting because you need the power button to actually root it.
Hmmm,
Never thought of that but it sure seems like a better diagnosis. The flex cable originates in the bottom half of the phone in the same compartment that the z hinge is found right?
It is also the flexible strip that runs through the middle of the phone when the hinge is half-way positioned, connecting the lcd/digitizer to the main motherboard of the phone?
I geuss replacing the flex cable would still involve the Teardown/Repair, however I dont think I will need to replace a power button, speaker, or digitizer IF!...that is the case.
Any other ideas on this?
TheToiletSpaula said:
Hmmm,
The flex cable originates in the bottom half of the phone in the same compartment that the z hinge is found right?
...
It is also the flexible strip that runs through the middle of the phone when the hinge is half-way positioned, connecting the lcd/digitizer to the main motherboard of the phone?
I geuss replacing the flex cable would still involve the Teardown/Repair, however I dont think I will need to replace a power button, speaker, or digitizer IF!...that is the case.
Any other ideas on this?
Click to expand...
Click to collapse
Yes thats the flex cable, it is built into the pcb behind the lcd, so the whole pcb has to be replaced AFAIK. Yes it requires a full tear down to do it, fairly basic to do, my phone is in pieces atm because the lcd needs replacing.
If the flex cable is the problem then none of those parts need replacing, it would be very unlikely in my opinion for all those parts to fail from a drop without it being flex cable related, possible though.
Link to the teardown, some steps in the middle are unneccesary for what you need. http://tjworld.net/blog/htc-desire-z-tear-down
elliott2705 said:
Yes thats the flex cable, it is built into the pcb behind the lcd, so the whole pcb has to be replaced AFAIK. Yes it requires a full tear down to do it, fairly basic to do, my phone is in pieces atm because the lcd needs replacing.
Click to expand...
Click to collapse
Hey, do you know where I can get a replacement pcb if I decide to take that route man? Seems hard to find that as a single part for sale...
I assume people replace their whole phone if they have a problem like mine :/
You wasted your freaking money on that phone!
250 is a huge waste!
You might as well add a line to your friends for the contract price.
melodicjunkie said:
You wasted your freaking money on that phone!
250 is a huge waste!
You might as well add a line to your friends for the contract price.
Click to expand...
Click to collapse
it's not THAT bad...considering a brand new one unlocked DZ goes for 450+ and i knew I could fix parts of the phone so for -200 cheaper...i don't know bro!
I just need to know if a replacement pcb is possible to get, or maybe just the flex cable is damaged in which I wouldn't need to replace something so crucial.
Who knows what to do?
EDIT: 450 where I live...Ontario, CA.
...i dunno...could even be water damage that did the deed to that phone....in which case you could be replacing a pcb...or not....I've seen water-loged phones come back to life before....sad thing is it might cost you a few to fix it properly...
Totally agree 250 was to steep...that guy probably paid 79 on contract for it....
Sent from my HTC Vision using XDA App
tvnaderwal said:
...i dunno...could even be water damage that did the deed to that phone....in which case you could be replacing a pcb...or not....I've seen water-loged phones come back to life before....sad thing is it might cost you a few to fix it properly...
Totally agree 250 was to steep...that guy probably paid 79 on contract for it....
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
Wow about the whole coming back to life thing you just said...thats exactly what my digitizer just did, so the left side of my lcd is now working including the home button!
Im guessing the touch panel ribbon was loose but it somehow shifted to functionality.
Great...now for the in ear speaker and power button, and 250 wont seem too bad!
Edit: anyone know how I can look for past signs for water damage like a colored change in a sticker or something?
TheToiletSpaula said:
Wow about the whole coming back to life thing you just said...thats exactly what my digitizer just did, so the left side of my lcd is now working including the home button!
Im guessing the touch panel ribbon was loose but it somehow shifted to functionality.
Great...now for the in ear speaker and power button, and 250 wont seem too bad!
Edit: anyone know how I can look for past signs for water damage like a colored change in a sticker or something?
Click to expand...
Click to collapse
There are 2 water damaged indicator stickers, 1 under battery and, 1 under the back housing, you can see it through the opening where the top tab of the battery door latches.
Edit: Forgot.... 1 on the battery too.
What color would the stickers be? They are both white, does that mean anything?
If they are pink they got wet.
Sent from my HTC Vision using XDA Premium App
^^ What they said.... Pink or Red
250 is quite a bit for a device with issues, but good news is it isn't water damage by the sounds of it.
I'm an aviation electronic tech, and your symptoms definetly sound like a loose interface ribbon. If I were u id haul it apart and reseat the flex cable you guys are talking about. I would put a 85% chance that's the issue.
good luck, and welcome fellow canuck to xda and dz family
Sent from my HTC Vision using XDA Premium App
Sounds good guys.
However...even if it is probably the flex cable that is causing the remainder of my problems:
1. the in call speaker being super quiet
2. power button not working
Is there any other chance that the speaker and power button areas have loose connections? what should i look for when i open the phone aside from ribbon/flex cable connections?
I need to get the power button fixed because then i can move onto rom modifications and stuff to finally get locations!
Yesterday i dropped my device from one feet. It turned off and i turned it on.
Now lower part of screen and capacitative buttons dont work. i will attach a image(non-working area outlined in red)
My warranty has expired so i cant exchange it for a new one. What should i do? Can i fix it by myself?
Please help me
Fycola123 said:
Yesterday i dropped my device from one feet. It turned off and i turned it on.
Now lower part of screen and capacitative buttons dont work. i will attach a image(non-working area outlined in red)
My warranty has expired so i cant exchange it for a new one. What should i do? Can i fix it by myself?
Please help me
Click to expand...
Click to collapse
Hi,
Only thing I can think of is that somehow it has damaged the cable from the touchscreen or the tiny wires that feed into the cable without damaging the screen. I came across a brand new screen I was replacing once for someone that had a similar problem where the bottom left hand corner wouldn't respond to touch unless there was firm pressure on the screen to create contact, and this was a brand new screen. It could also be that the touchscreen connector needs to be pushed back onto the board if it's come a bit loose.
If this is the problem, you can fix it by yourself although I'd have a good look around youtube, there are heaps of DIY videos of how to replace screens. If you do go down this path I recommend you replace the touchscreen/LCD/LCD frame in one go, as it's generally already pre- assembled the only thing here is that there are 3 brands of LCD's HTC used with the phone and they aren't all compatible, and you can only tell by pulling down your phone and looking at the LCD flex cable colours, and the other thing is that the screens that are available aren't always the same quality as the original. If this sounds to hard your best bet is to take it somewhere and diagnose the problem just in case it's something else
hi friend.my tab s 8.4(t705) has a bad problem.my tab screen show white color on green.my tablet bag has magnet.yesterday i exit my tab from bag and see screen work correct.but next time it doesnt show color correct.pls help me.i flash 5.0.2 stock rom.but this problem is hardware problem,becouse this problem is on recovery and boot animation
It could be something as simple as an bad connection it happens all the time, any flexing of the tablet can cause connectors to become loose, or damage could have happened to the display they are very sensitive and drops and bangs can damage them.
If you are still in warranty get it repaired or replaced, or take it to an phone/tablet repair shop, or if you are handy it`s easy to take one apart, lots of guides on ebay.
John.
I OPEN back cover and reinsert all connectors.but i doesnt work
Have you tried disconnecting the battery for a while, though i doubt this will help as i think the display is damaged, you need to get your tablet looked at by a repair shop.
John.
wearingblack90 said:
I OPEN back cover and reinsert all connectors.but i doesnt work
Click to expand...
Click to collapse
no i didnt it,but i think best way is repair shop
tnx for help friend
Hi
Sorry for my english, I'm hungarian, this is the best I can do.
So I bought a cheap (but not too cheap) SM-P905, but I can't get the screen to work properly.
The touch layer, the spen, the backlight works well, I managed to mirror the screen on my pc and everything else seems to be okay.
I got off the back cover, I tried to unplug and reattach every flex cable, even the battery. I tried to look everything under magnifying glass to see what could be the problem.
The lcd flex connector looks like this under my lens.
(Upload it in the next post, not working from the android app)
I tried to clean it with a needle, but it still looks like it is corroded or melted.
Is it possible that replacing this connector will get the screen back to normal? (I found flex connector replacement on the internet)
Or is it possible to repair it with some jumpers or something like this?
Is it melted because of some shorted circuit somewhere else, or because of a bad micro capacitor?
How and where can I locate and resolve this problem (s)? Maybe is it still the lcd that is simply dead and I can't bring it back to life?
I dont want to buy a screen, and a motherboard (neither only one of them )
Thank you for your help!
Okay the forum doesnt let me to insert links or photos, because I'm new here -.-
/s/53oab9sykbihn32/20151021_175009.jpg?dl=0 write dropbox dot com in front of link
https://www.dropbox.com/s/53oab9sykbihn32/20151021_175009.jpg?dl=0
In my opinion it died!!
I hoped for better opinions
I wanted to know how this thing can die?
It has to be caused by something.
Bad resistor/capacitor? Is it on the motherboard or on the lcd's circuitboard?? Or is it only the corroded flex connector??
I dont want to throw the whole tablet in the trash. Everything else is just operating fine.
If nobody can answer this, where should I write, where people can help with these very small components / resoldering / measuring what gone wrong here?
Alan-B said:
In my opinion it died!!
Click to expand...
Click to collapse
So today I measured the pins in worst condition. There are 2 pins that I tought can cause the problem and looks corroded. (Number 5 and 9 from the right) Both of them !are not used!. (There is a total of 3 pins that are not used on the connector/cable)
They are not lead through the flex cable, they have no function here.
So the problem comes from somewhere else, but I still don't know why they look like this.
Maybe I will try to seperate the screen from the body and look at it closer and its connectors/smaller circuit boards.
Sent from my SM-N9005 using XDA Free mobile app
Hmm, that pic does not make me think its a corrosion problem. At best, it can lead to a finicky connection, but there seems to be enough there for proper electrical contact. If this were a headphone jack, for example, I would say apply pressure near the cable to see if the headset works properly, and if it does, then I know its a cable problem. No idea if you can try to apply pressure to the cable and see if the LCD turns on.
If the screen mirrors on the TV successfully, then there are a bunch of Samsung Service Codes you can use to test the LCD. Unfortunately I do not know them for this model, but google should get you the service menu very easily. There is definitely a test in there for the LCD that should give you a better idea what to expect.
If the cable is pretty cheap, I would also just pick up one and try replacing. Nothing to lose! AND if you have access to another identical device, you can try to stick this LCD on that device to see if its the LCD thats the problem or the motherboard.
Lastly, I would want to know if the glass on that LCD has ever been replaced. If they did a glass only replacement, its possible they overheated the LCD ... OR used too much LOCA glue that shorted the connectors.
Many possibilities, so I wouldn't call it a day yet. First, look for the service menu, thats the best place to begin.
I will try the service codes.
Unfortunately I don't have more devices. The easiest way would be to test the identical parts on a working one, but I don't know anyone who would risk his/her tablet for this
The other thing I can do is to get another lcd-glass unit from ebay or from ifixit and try it. If the problem was the lcd, it should work, I'm happy, but if its black, I will have (maybe) 2 working lcd units for sale. Or I have to get a new motherboard (sounds expansive).
I don't think that they replaced the glass on this device, it looks very used and scratchy, so it was working before.
Thank you for taking your time for me and answering my dumb questions!!
Sent from my SM-N9005 using XDA Free mobile app
There are more good news than bad, so I'm very happy.
So 1-2 days ago I started to get off the screen to see if I can seperate the LCD from the receiver. Turned out its not that hard. The only hard thing is to get it off the body in one piece. Lots of heating with a hair drier, and a LOT OF PATIENCE. If you can get it off in one piece you are on your way.
Seperating the glass from the LCD is very easy, did it in 10 minutes, I don't think it needs heating...
So I did it, then I saw some water damage (white things) on the back side of the LCD. There is a small board here too, so I cleaned the white thing off with some alcohol.
Then I put the lcd back and voilá, Its WORKING!!!
The only problem is that I damaged the touch screen glass, so I need to order a new one, but its under 20$ so no problem.
Thank you all for your help, I hope that I finished here
Sent from my SM-N9005 using XDA Free mobile app
Good to know! Thank you for the update
Other solution is remove battery five minute and reconnect battery