[Q] DIY repair troubleshooting, need help - Motorola Droid 3

So I've installed a shiny new digitizer on my D3 and I've barely been able to boot since. At first nothing but the back-light came on except one out of ten tries actually got me to the lock screen where it appeared to have frozen. Took it apart and put it back together again. At this point only the charging led comes on, screen is blank. Re-assembled again making damn sure all cables were properly inserted, same thing. Power+M does nothing. I confess I did rough up the cables a bit, looking under a magnifying glass I don't see any obvious tears however.
Anyone else been through this?

...i bought the same droid with new digitizer for parts on ebay.
Problem was the Flex Ribbon Cable.
On ebay is opprox for $30.

You had issues with booting also?

my problem was ...sometimes boot with display white, sometime white

New flex cable did the trick!:laugh: I have 890 installed right now, could someone kindly remind me of the typical procedure for installing Maverick or Eclipse from here? I know this ususally involves un-rooting, bootloader/recovery but I'm not sure which guides to follow and in which order. Thanks.
EDIT:Nevermind, I found the information in the post next to this one.

Related

Very Dim Screen on AT&T Tilit - Backlight issue(?)

Here's my story:
I recently bought this phone for only $125 - not bad deal if you ask me. I knew from the beginning that the screen was a little mess up, even the guy I bought it from knew that. You would need a flash light in order to see what was on the screen. From any other point of view, it's just totally dark/black. So the guy was gracious enough to include a new lcd screen which he ordered to replace the old one. So I decided to undertake the task of putting it in myself. Once that was all said and done, I powered the tilt up and it was doing the exact same thing before I put the new lcd screen in, which was not lighting up the screen and it was still very dark to see anything.
With a flashlight, you can see that it's still working and the touchscreen works fine too. I think another person posted a thread with the same problem, but no one really replied back to him. Has anyone come across this problem before? Some have said that it's the flex cable that connects to the front d-pad and lcd screen itself is the cause for the back light issue. Any suggestions out there?
If I were you I'd try to figure out the pinouts for the LCD panel. Try to see if the Kaiser is outputting the necessary voltage for the backlight. Also try the opposite and apply voltage to the LCD to test the backlight.
Unless it is 2 back LCDs, I'm assuming there is a fault somewhere internal and not turning on the backlight.
I've never taken my tilt apart, but this is where I would start.
I wouldn't know where to begin to troubleshoot a device like this. Lol! It's fairly easy to take apart - there's actually a video on youtube that takes you step-by-step. I guess this isn't as common as some problems are, but I don't want to spend money having someone else fix something that could be so minute. And prices for some of the replacement parts are almost as expensive as what I bought the phone for.
When I took my tilt apart, physically, everything looked good from what my eyes can see. A little cleaning here and there, nothing major. The guy who had it before me flashed the rom to try and make it look like it had touchflo on it so I reflashed it back to the original rom software (or at least, whatever was on the HTC website). I tried doing hard resets, soft resets, rom flashing and everything, still no luck.

[Q] Captivate with smashed screen worth fixing?

]I bought a broken captivate through a friend of a friend for its accessories (for its battery, micro usb cable, and the back in case I ever damage or scratch mine).
I guess this guy bricked his cappy, got mad and threw it at the wall which completely smashed the screen. I realized a while ago that when I put a battery in it and plug it into the wall, that it will actually charge the battery so have been using it as a charger. Recently though I noticed that the soft keys light up. So tonight I got the bright idea for fun, that I'd put a jig in it and connect it to ODIN. Low and behold, it detected the device and I flashed it to stock. When it rebooted, the start up sound came on.
So my question to you guys is this... if the phone can be flashed and boots up okay, is it worth trying to see if someone (a local cell repair shop) can put a new screen on it? The reason I ask is because right now there is absolutely nothing that can be seen on the screen. Its completely smashed so its all black (picture attached). I just don't know if its worth trying to fix up to use as a backup or spare (or possibly sell). I don't know if the screen itself is the LED or if there are components behind the screen that might need to be repaired too. I am guessing it would probably make it too expensive to salvage but wasnt sure if anyone here has fixed one up
I put my sim in it but when I call it just goes to voicemail so don't know if its because it still needs to be set up when you first boot up or if its because other things are broken inside.
View attachment 540170
last i checked on ebay a screen replacement is about 80 bucks. not difficult at all to do yourself. there is a captivate teardown you can find in the forums.

HTC One Weird Problem

Hey everyone,
I've been lurking around these forums trying to find a solution to a few problems that my HTC One M7 has been having but have yet to find a solution.
It all started with the black screen problem where I could only see the screen on my phone by shinning a bright light on it. I decided to do a factory reset but that didn't fix the problem.
My next step was taking the back housing off my phone to see if any of the flex cable connections were loose. Since I've been tinkering around inside I've gotten some weird versions of different things to happen.
I've gotten the screen to be back to normal brightness without touch controls and I've gotten the phone to be completely working outside of sound. Right now I have all the flex cables and black antenna cable unplugged and decided to let the battery drain completely before I reseat all the cables, recharge, and try from scratch.
Just wondering if anyone has any ideas on some solutions to the problem or things I can try. I've also though about replacing some of the flex cables to see if that helps. Thoughts?

[Q] HTC one M7 Screen dead

​Hi there can anyone help me please on this matter.
My wife has a HTC One M7. last week the phone fell in to the bath. I managed to open the phone up and clean it.
The phone was taken apart and cleaned correctly using the correct circuit board cleaning solution (sorry cant remember the name).
I then ordered a new battery as the old one was not holding full charge. I also ordered a new screen + digitizer as the old one was cracked.
I have put everything together and charged the phone.
The phone charges correcrtly and has no problems at all.
When i switch on the phone it starts as normal and makes normal sounds etc BUT the screen is dead.
There is NO life in the screen at all even though its a new screen etc.
I know that the old screen is working and even using that i still get nothing.
Has anyone else come across this issue ?
Are there any guides to test the screen driver IC etc ....???
Thanks for your help in advance
It seems like that you have got a faulty screen.
amebb said:
​Hi there can anyone help me please on this matter.
My wife has a HTC One M7. last week the phone fell in to the bath. I managed to open the phone up and clean it.
The phone was taken apart and cleaned correctly using the correct circuit board cleaning solution (sorry cant remember the name).
I then ordered a new battery as the old one was not holding full charge. I also ordered a new screen + digitizer as the old one was cracked.
I have put everything together and charged the phone.
The phone charges correcrtly and has no problems at all.
When i switch on the phone it starts as normal and makes normal sounds etc BUT the screen is dead.
There is NO life in the screen at all even though its a new screen etc.
I know that the old screen is working and even using that i still get nothing.
Has anyone else come across this issue ?
Are there any guides to test the screen driver IC etc ....???
Thanks for your help in advance
Click to expand...
Click to collapse
MIght be a faulty screen as said above, maybe a broken or badly connected flex cable. And since the phone went into the bath, maybe a defective motherboard. Its very hard to tell.
as @alray said, it's hard to judge what's the cause of the dead screen, it may be one of the three causes.
so first, you can connect your old screen to the motherboard, if it can still work, to check whether the mother board was damaged or not
if the old screen can be lighten up, you can exclude the possibility of damaged motherboard.
second , you can connect your new screen to the motherboard again. Just be carefully and pay attention to the connector. Make sure it is connected correctly. If the screen can't be lighted up, you need try to use achohol or something else in a small brush to clean the connector. Handle gently to avoid damaging the IC. After that check whether the IC has lost some part or not. Then, if the flex cable or connector is fine, you can connect the new screen to the motherboard again.
finally, if the new screen still keep the same same situation. you can almost judge that you ordered a defective part.
May the steps above helps!
Hi there
the screen works fine as well as the connectors.
These have been tested on another htc one phone.
I have noticed that the motherboard connecter is damaged..... i will try to get some pics up later today.
Thanks

[Q] SIM not read after screen replacement

As we all know, the phone is pretty darn well put together and surprisingly durable. But, unfortunately, it is not invincible. About a month and a half ago I cracked my screen. The phone had a case, but it wasn't anything hefty (the HTC Double Dip case). The phone was still completely usable, but I like the phone and wanted to keep it nice so I decided to replace the screen. I ordered the screen + framework assembly and it was about $55. In the past when I have replaced screens on a few iPhones and an ASUS tablet the parts were quite a bit cheaper, but whatever. My phone is the black model, but I decided to try something different and ordered the new part with red speaker grills. Most guides and such said that the M7 is a pretty hard phone to repair, but I have worked on a couple other phones before, so I gave it a go. After many, many hours of carefully prying apart the phone and transplanting the logic boards to the new screen framework I put it all back together and powered it up. To my surprise the phone powered up and the screen worked fine. (And let me tell you the red and black looks damn good). The first thing I noticed was that vibration didn't work. A bit annoying, but the phone looked good enough that I could get past that. Next I tested the speakers and noticed that at full volume the speakers sound a little bit messed up. Again, a little annoying, but I'm not a professional so I wasn't overly disappointed. Then came the real problem...
THE REAL PROBLEM:
When I put the SIM card in the phone didn't detect it. After a reboot it still didn't detect it. After a factory restore it still didn't detect it. Perhaps the ribbon cable connecting the SIM reader to the board was not all the way secured? After how hard it was to take the phone apart the first time I was not a fan of the idea of doing it again. But alas, the next day I opened the phone back up super carefully so not to damage the new parts. It was thankfully a little bit easier the second time. I made sure the SIM reader was all the way connected, but the phone still wouldn't read the SIM. I pulled the old SIM reader out from the old screen framework assembly and plugged it into the board, but the SIM was still not detected, indicating that the new screen did not come with a bad SIM reader. Has this problem happened to anyone else? What steps should I take? I now have really nice looking M7 that is essentially useless.
So does anyone have input on this?
Pr.TOSHIBA said:
So does anyone have input on this?
Click to expand...
Click to collapse
Same thing happened to me. Also swapped out the old reader without any luck.... Any update on this?
Does it detect it at all? Like ask for the pin code if you use that?
Do you have to disconnect the battery when replacing the screen on this phone? I know on some phones I repaired I had to manually set the current time and date (resets to year 1970 or something like that if you disconnect the battery) to get a signal.
Otherwise I have no idea

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