Hey guys i hated my tf300 untill i put a custom ROM(hydro) on it.I have loved it ever since...unfortunately i dropped it and now the screen just doesnt respond anymore..screen still looks perfect no crack or scratch..i have tried full reset and everything i can....should i get i new digitizer??
will that fix it please help..
rchremi said:
Hey guys i hated my tf300 untill i put a custom ROM(hydro) on it.I have loved it ever since...unfortunately i dropped it and now the screen just doesnt respond anymore..screen still looks perfect no crack or scratch..i have tried full reset and everything i can....should i get i new digitizer??
will that fix it please help..
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Cracks are not always visible. But if they're not there, I'd suggest you open the back case and try to reseat the ribbon cables at the touchscreen PCB. While at it, check the flat silver cable connecting that board to the mainboard also. Make sure nothing is jarred loose by the drop.
graphdarnell said:
Cracks are not always visible. But if they're not there, I'd suggest you open the back case and try to reseat the ribbon cables at the touchscreen PCB. While at it, check the flat silver cable connecting that board to the mainboard also. Make sure nothing is jarred loose by the drop.
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thanx for responding...i did exactly what you said ..i disconnected both cables (silver and brown) and put them back..more than half of the screen started working, the other part was just dead and those parts didnt work even when i tilted the screen.. like 5 minutes later the entire screen is dead again......do you think its the digitizer?
rchremi said:
thanx for responding...i did exactly what you said ..i disconnected both cables (silver and brown) and put them back..more than half of the screen started working, the other part was just dead and those parts didnt work even when i tilted the screen.. like 5 minutes later the entire screen is dead again......do you think its the digitizer?
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Sorry for the late reply. I've run into this problem before. When you have a digitizer that works for a few minutes then stops as the tab warms up, (1) more likely than not, there's a crack somewhere or a tear on the ribbons, visible or not, or (2) the new screen boycotting the old firmware. No new screen points to faulty hardware. However, it doesn't hurt to eliminate possible software causes.
The best test I can think of at this point would be to first check the physical connections again (check the connectors and ribbon ends under a magnifying glass, make sure they aren't damaged, bent or stripped), then re-flash the firmware following instructions in another thread, then turn on "show touches" in settings. If you still see "ghost touches" after a few minutes, the digitizer is likely ass-kicked by the drop.
I've had a digitizer on a TF act "leisurely" because of a crack across the width of the bordering black strip that couldn't be detected with the naked eye because it severed the circuit on just the underside. The surface was totally smooth. As the crack spread, it became obvious.
If I had access to your glass, I could've tested for you. Too bad.
Related
ok i've really buggered it up this time, my screen's been pissing me off because it's still ****ed (slight drop, people suggested it might be a loose connector) so i got the t6 screw driver and opened it up and decided that i could probably live with a slightly buggered screen as opposed to anything going wrong.
Decided to give it another go today and re did the connectos and all. got to restart it and it seems the screen's off and the backlight's on or the screen's white. help?
No video signal I think, check the flat connecter that comes from the screen to the motherboard, this must be pushed in and clipped firmly.
checked that, it's all fine there, what's on the other end of the cable? has it got another connector in the screen should i check that? how do i take out the motherboard?
hi i replaced the digitizer following a guide i found online
step by step and being really careful.
when i finish the phone wouldn't turn on you can feel it vibrates once but that's all.
y tried going to the bootloader but it wont work.
i search online and found a couple of posting on forum anout people having the same exact issue, but without answer.
y re-opened to verify if i missed something, 3 times, but everything was fine except to the very last time i broke the ribbon for the track pad.
when i plug it to my laptop my charging light comes on for 3 sec then goes off and back on for 3 sec. and remains on a loop .
could it be that it needs to be reset some how?
i was thinking maybe i fried the board with my static, but i doubt it.
please help.
thanks in advance
I can suggest that you need to make 100% sure the ribbon cable for the slider is not dinged or has the black coating worn off. Other than that I suggest that you make sure the connection from the LCD (not the digitizer) didn't come loose. Those Jawbone connectors can be a pain to get in correctly. Also even though you got the connectors in right you need to make sure you didnt accidentally nick or fold the ribbon.
Also make sure the socket connector on the main board is on correctly. It may seem on but there should be a tactile snap when it goes on properly. The connector I am talking about here is the one that you pull off before lifting off the slide flex cable to take off the mother board.
One last thing on that connector...make certain none of pins got bent either.
I have done many different repairs of phones so those are the things I would look for. I havent repaired 4g slide yet bit have done other HTC phones and the similarities of the 4g slide motherboard and the Sensation's are crazy. It really is mostly a sensation with a keyboard and smaller screen.
Sent from my myTouch_4G_Slide using xda premium
yeah i know which one you re talking about, i'm going to take it apart again now. the only think i see wrong is,when i tried to separate the lcd from the the casing i might over heated it with the dryer, or i slide a credit card in to separate it and the flex got a little torn but i don't see any cracks or damage on the ribbon, but if that was the case the phone would turn on and just don't display anything, but is not booting up at all.
thanks for your reply tho. i appreciate it
nope, i just re-checked everything, and is the same thing. is someone want to buy itas is pm me.
So I broke my digitizer glass a few weeks ago. I ordered a new digitizer off ebay... I made sure I ordered the correct version (it was the "no model version" or whatever). Installed it which was really annoying because of all the nasty glue.
Now I can't get the tablet to turn on at all. Before at least the LCD was functional. The red charging light comes on when I plug in the charger but that's it.
Any way I accidentally broke a cable or something when I was taking it apart? I checked it all and everything seems fine... I really don't know what to do.
Assuming I can't get it fixed, think I could sell the broken tablet for anything?
Thanks!
zaner123 said:
So I broke my digitizer glass a few weeks ago. I ordered a new digitizer off ebay... I made sure I ordered the correct version (it was the "no model version" or whatever). Installed it which was really annoying because of all the nasty glue.
Now I can't get the tablet to turn on at all. Before at least the LCD was functional. The red charging light comes on when I plug in the charger but that's it.
Any way I accidentally broke a cable or something when I was taking it apart? I checked it all and everything seems fine... I really don't know what to do.
Assuming I can't get it fixed, think I could sell the broken tablet for anything?
Thanks!
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Of course you can resell the tab in its current state. Quickly or slowly depending on the asking price. But before doing that, you should check one more time. The fastest way is plug it to a TV monitor via the micro HDMI port. If it comes on, at least you know the system is working except for the video. Past that, there can only be two possibilities. (1) Bad lcd: something might have happened when you pried it off the broken digitizer; and/or (2) the video cable is bad, or improperly connected - by that, I mean you need to make sure it fits all the way in at both ends (mainboard & LCD). Check connection with a magnifying glass, You won't believe how many times people forget to reconnect the cable or connect it wrong. Lastly, if you did turn the service switch off, make sure it's turned on again. Good luck.
LCD to Mainboard connection...can it be connected "wrong"? Or simply not as snug as it should be?
Also, what is the service switch?
zaner123 said:
LCD to Mainboard connection...can it be connected "wrong"? Or simply not as snug as it should be?
Also, what is the service switch?
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Here's the link to the relevant thread. Search for the necessary information within it. The cable that goes from LCD to mainboard is labeled: "MB" end goes to mainboard. The service switch is located at the top of the mainboard looking from the back, to the left of the power button ribbon (top right corner of tab), and is labeled "on"/"off". You should turn it off before doing anything. It cuts off all current to the boards and prevents accidental shortcircuitings. If you don't and mess around with the digitizer board, you might burn a fuse that controls the dig's operations. But this is for later. Go to the thread and browse it.
I dropped my phone and shattered the screen. afterwards, the phone started behaving weird, the screen was purple with yellow static, but it still worked. So I bought a replacement screen and replaced it, but after the replacement, the same behaviour persisted. I googled it and found out that it might be the usb flex cable, so I replaced that. After the replacement it worked fine for about half an hour, then it just went black. Now when I turn it on, the backlight turns on, but nothing is being displayed. If I press down on the flex cable connector I get that purple yellowish screen that I had before, but as soon as I lift my finger, it goes black. Did I damage the connector on the motherboard or did I break the flex cable when replacing it?
Perhaps
not very helpful, but thanks anyways
I soaked all the components except the screen in alcohol for an hour and let them to dry, but it's still the same. By the way, I tried the old flex cable as well and it behaves the same.
entipck said:
not very helpful, but thanks anyways
I soaked all the components except the screen in alcohol for an hour and let them to dry, but it's still the same. By the way, I tried the old flex cable as well and it behaves the same.
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Hi there, sorry to resurrect this topic, but I'm having this same issue, just wanted to know if OP found a solution to this.
aquilesboy said:
Hi there, sorry to resurrect this topic, but I'm having this same issue, just wanted to know if OP found a solution to this.
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the solution is to resolder the connector of that flex cable on the nexus 5 mainboard. Use a heatgun and heat it up until the solder smelts, you can add some flux before that. That should fix it
234herobrine432 said:
the solution is to resolder the connector of that flex cable on the nexus 5 mainboard. Use a heatgun and heat it up until the solder smelts, you can add some flux before that. That should fix it
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Thanks for the reply, I'll try that, recently the USB data stopped working, PC doesnt recognize the device anymore but I guess it is still charging because it hasnt turned off.
I just dropped my P900 and it went completely dark. :crying: There's no mark, not a crack, nothing, but the display is completely dark. The touch buttons on each side of the home button lights up, but the display does not.
Any advice? Or it is Samsung support next?
May the ribbon for the display is disconnected from the circuit board.
poetryrocksalot said:
May the ribbon for the display is disconnected from the circuit board.
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Yeah, maybe I should open it myself and have a look. Are there any warranty seals that I will break if I pry it open? I have all the tools necessary, but are there any guides for opening the P900? I wouldn't want to break anything...
bluebirch said:
Yeah, maybe I should open it myself and have a look. Are there any warranty seals that I will break if I pry it open? I have all the tools necessary, but are there any guides for opening the P900? I wouldn't want to break anything...
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This is a video on replacing the battery but it helped me when I re-soldered the battery connection on mine.
https://www.youtube.com/watch?v=VeSG0hHpAG8
I've opened mine a few times and haven't noticed any specific seals but mine was refurbished to start with.
Also I have the proper tools but found a guitar pick was easier to use personally on this tablet.
Starting at the power port to remove the back made it a lot easier for me, its pretty hard to get anything between the back cover and the tablet in other areas.
poetryrocksalot said:
May the ribbon for the display is disconnected from the circuit board.
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This was indeed the problem! The connector has some kind of snap lock that had come loose. So easily fixed. Thanks for encouraging me to try to fix it myself. :good:
Glad I helped!
Sorry to hijack your thread but figured my problem might be related.
About 2 weeks ago I charged my tablet and stored it away. The other day I tried to use it and it wouldn't turn on. I tried to charge it but that didn't work either as there isn't even charging activity on the screen. I ordered a replacement battery thinking it might be that, but I was wrong. I still can't make it turn on. Any ideas what it can be? Thanks
bluebirch said:
This was indeed the problem! The connector has some kind of snap lock that had come loose. So easily fixed. Thanks for encouraging me to try to fix it myself. :good:
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I had a similar experience. 3 weeks ago the 1x my SM P-900 is out of its protective case, it falls 2.5 ft off a table. Hits the floor. No visible cracks or breaks. I could hear hear it operating but the screen was black. Took 3 weeks to talk myself up to it but I pried off the back & used a magnifier glass to c.a.r.e.f.u.l.l.y check every ribbon connect. 1 connector's pins were very slightly off alignment. Couldnt find anything else. Put it back together...Yes! Screen works. All seems good. Took the back off again & securely taped over every ribbon connect I could find. Long time intermittent screen flicker issue (when battery was below 40%) also seems to be gone. That has been the best, eye squintin', back hunchin', shallow breathin', micro-screw wrangling, time investment my non-hardware tech self has ever spent. Wooo!