[Q] XT925 killed during attempt of downgrade from OTA 4.4.2 - RAZR HD Q&A, Help & Troubleshooting

Hello,
I've had recently broke my XT925 and have question if it’s possible to bring it back to life...
Well from the beginning... I've had glass smashed and during tearing screen from the glass I damaged it, so I've ordered new screen with glass and digitizer. When it arrived, after putting it all together it appears that screen doesn't respond on any touch. My friend read somewhere that it could be solved by flashing the phone again(now I don't know is it truth, and right now it feels like one of the smallest problem I have).
I flashed my Milestone 2 and Droid 4 before so I didn't suspect it be so troubling now.
Because my Motorola had been updated to 4.4.2 and I couldn't find firmware in that version I've decided to downgrade the version to 4.1.2. I found some video with how to modify XML file to be flashable. Unfortunately the video is in foreign to me language (Spanish I guess) and at the time I don't realize, that phone has to be unlocked to do that.
It, start to flash, but when it gets to "boot" it stop saying that it can't be downgraded. So right now My XT925 starts to AP Flash mod with text Flash Failure. I'm able to get to recovery mode and from there try to update phone but like in AP Flash it just don't want to flash Android 4.1.2.
Is there any way to bring it back to life?
I'm guessing that it should run if I could flash files for 4.4.2 but I don't know from where I can get them...
Please tell me do I have nice looking brick or there is a hope for my phone?
Phone is locked, has no other then stock tools installed, and it had system version 180.46.117.XT925.CCE-Retail.en.EU before I started to mess with it.
I tried flash it with 9.8.2Q-8-XT925_VQU-22_USERSIGNED_S7_UCAVANQU02NA02F.0R_LSAVNQJBRTFR_P007_A004_CFC.xml. When it begin starting in AP Flash mode I have removed every line that cause stopping the process (technically everything except "partition", "tz", "boot" and "system" is loaded from 4.1.2) so now its very messy. Right now I don't know what I was hoping for. What's done is done, so now I can only hope that it can be fixed.

If its even fixable, there is no way to fix it without the stock kk fxz, unless you can get it unlocked using Moto's site.
Sent from my G3 Rockin Cyanogen

Thank you for your reply.
I'll try unlocking by web when I get home. I'm only hoping that it can be done without working properly touch screen, or buy connect keyboard via OTG. Otherwise I'm doomed...

Why the F would reflashing after changing the screen and/or digitizer magically bring back the touchscreen functionality to life ?
No touchscreen only means the digitizer was not installed properly, that's all. Open the phone again and check all flex cables and connection, they are really tricky to put back in connectors properly. (pro tip, use some very small pliers to manipulate flex cables and put them back in their connectors)
Unlocking does not require any touchscreen functionality though, it's just a matter of keyboard input from your computer. Just unlock, downgrade properly to say 4.1.2, and when you're done see if the touchscreen work. And when you find out it doesn't, tear the phone apart again and double-check all flex cables connectors on the motherboard

It works!! Thank you very much!!
At first I have problems to find the fastboot.exe in the downloaded SDK directory (for those who also have problems with finding that file it is in 'sdk\platform-tools' folder). The process of unlocking is very easy so I have no problem with that . After unlocking phone flash correctly.
CoinCoin88 said:
Why the F would reflashing after changing the screen and/or digitizer magically bring back the touchscreen functionality to life ?
No touchscreen only means the digitizer was not installed properly, that's all. Open the phone again and check all flex cables and connection, they are really tricky to put back in connectors properly. (pro tip, use some very small pliers to manipulate flex cables and put them back in their connectors)
Unlocking does not require any touchscreen functionality though, it's just a matter of keyboard input from your computer. Just unlock, downgrade properly to say 4.1.2, and when you're done see if the touchscreen work. And when you find out it doesn't, tear the phone apart again and double-check all flex cables connectors on the motherboard
Click to expand...
Click to collapse
Apparently when you have KitKat update it's necessary to flash phone again after replacing the screen and/or digitizer. After flashing digitizer is working properly. I didn't need to open the phone and correct any flex cables (there is only one common to the screen and digitizer so if that was wrongly connected probably I won't be seeing anything). To be honest I don't think that will work without opening the phone. I instinctively unlocked the phone and started to choose the language. Then I realized that I can do it. I'm really glad that the phone is working correctly.
Once again thank you very much for your help.

M_Kwiatkowski said:
It works!! Thank you very much!!
At first I have problems to find the fastboot.exe in the downloaded SDK directory (for those who also have problems with finding that file it is in 'sdk\platform-tools' folder). The process of unlocking is very easy so I have no problem with that . After unlocking phone flash correctly.
Apparently when you have KitKat update it's necessary to flash phone again after replacing the screen and/or digitizer. After flashing digitizer is working properly. I didn't need to open the phone and correct any flex cables (there is only one common to the screen and digitizer so if that was wrongly connected probably I won't be seeing anything). To be honest I don't think that will work without opening the phone. I instinctively unlocked the phone and started to choose the language. Then I realized that I can do it. I'm really glad that the phone is working correctly.
Once again thank you very much for your help.
Click to expand...
Click to collapse
Well, I'll be damned, it's the first time I hear of such behaviour, and i've ripped apart a long list of devices before my razr... Sometimes to replace the screen, sometimes to replace the battery, sometimes just for fun... and I've never seen that before.
(Although IIRC there are two flex cables going from the front assembly to the motherboard in the xt925 and not just one, but I don't remember which one is for what)
edit: OK just found out lcd and digitizer are glued together in most recent phones, including xt925, so there's probably only one flex cable for the whole assembly. They other one was probably for the led I guess...)

CoinCoin88 said:
Well, I'll be damned, it's the first time I hear of such behaviour, and i've ripped apart a long list of devices before my razr... Sometimes to replace the screen, sometimes to replace the battery, sometimes just for fun... and I've never seen that before.
(Although IIRC there are two flex cables going from the front assembly to the motherboard in the xt925 and not just one, but I don't remember which one is for what)
edit: OK just found out lcd and digitizer are glued together in most recent phones, including xt925, so there's probably only one flex cable for the whole assembly. They other one was probably for the led I guess...)
Click to expand...
Click to collapse
The second one is for front camera, speaker and light sensor. I don't count that one because is actually separate part from the screen witch is screwed to the front frame of the phone. To be clear I had problems with that cable and I had to put it few times before camera and sensor start work correctly. That is why I paid special attention to the good fitting of these cables to the motherboard. That was before I smashed software by trying downgrade locked phone so I was pretty sure that it was fitted correctly.
Now my Motorola still works fine. After replacing the screen it actually lived longer in one piece then when I bought it. I scratched the screen next day from purchase... then it fell of my hands few times(usually with the help of other people)... That is why I decided to change glass and front frame... and then during the peel-off old glass from screen I broke the screen... It all happened in period shorter than two months... I'm guessing this particular XT925 is very unlucky... or... it's just unlucky to have me as the owner...
I'm very careful with carrying it with me now, so I don't have to replace the screen again... it cost alto... :|
Well, at least now I know how to bring it safely back to life. And I must admit that my friends are quite impressed that I managed get it work again.

Related

i9023 - Replacement screen touch input not working

Hi,
I recently dropped my i9023 and smashed the glass.
Bought a new screen with digitizer from global direct parts (www globaldirectparts com/Samsung-GT-I9023-LCD-and-Digitizer-Assembly-p/smsng6102150.htm)
Having put the new screen in it boots up fine and displays perfectly but the touch screen is not working at all and I can't do anything. If I put my smashed screen back in touch input works fine.
I've flashed back to stock I9023XXKB3 and I9023XXKB1 firmware, but nothing seems to help.
The ribbon to the screen doesn't appear to be damaged and because global direct parts had a minimum purchase of 2 I have 2 new ones and they are both unresponsive.
Anyone have any ideas?
My first idea would be to have the manufacturer fix it.
Sorry you are having trouble getting the touch screen to respond. I too have cracked my screen and would be very interested in your strip down and replacement steps as I am going to be doing the same. If you get time, could you write down your steps. There is a pretty good teardown at
http://www.ifixit.com/Teardown/Nexus-S-Teardown/4365/1
but I am not confident of the last bit of using a heat gun to separate the screen from the frame. Did yours come off easy ?
Yes I could have sent it to an authorized repairer but I would of been without the phone for a a while and it would cost twice as much. Plus I like pulling things apart.
markread544 - I pretty much followed the ifixit guide. however when pulling out the motherboard make sure the front and rear cameras and speaker are loose as well otherwise it wont come out.
I didn't use a heat gun, I just applied pressure until it started to lift, it would of definitely been easier if it had been warmed up but I didn't want to use a heat gun either. You would want to use an adjustable heat one on low if you did, I think a hair dryer would work as well.
I pulled mine a bit further apart then they did, the grey part in the attached pic comes off as well which makes it easier to get the screen out of the front bezel which it is also glued to.
Phone is back together at the moment with the cracked screen but I'll take some photos if I pull it apart again.
same problem here.
i bought an lcd on ebay for i9023 (slcd)
display OK , but no tactil response.
i had MP the OP but still no answer.
if you have any suggestion
thanks
how much for the screen? seems that 9023 is cheaper than 9020
80 euros for the less expensive , about 120-150 for the others
I ended up returning the screens from global direct parts and after about a month they gave me a refund.
After being quoted AU $250to get the screen replaced by an authorized repairer I decided to try again and bought a replacement screen on eBay from a seller called stream_beautiful for $86.
Got it today, installed and it works perfectly. No idea why the original screens from global direct didn't work.
I'm sorry to bump such an old thread, but I was wondering if there was any more information on this issue... I ordered an i9023 screen to repair a friend's phone about 2 months ago and had the same issue as the OP with it; touch input didn't work. I then contacted the seller (forceviewer on aliexpress) and he told me he'd replace it. After sending it back I then had to contact him again and send him pictures of the back of the old screen (with which touch input still works) because according to him there are 2 versions. Now I received the second screen a week ago and lo and behold, it exhibited the same problems. I noticed a number on the back of the screen is different, and the atmel IC (which I assume handles the digitizer input) has a different number on it too, however the seller has now adopted the position that it is definitely the correct display (quote: "If the pictures is right
The item will be right
I just send you the one same with your picturs
There are only two version.
Thanks")
Can anyone shed some light on what causes this? I know the guy's company tests their displays before sending them out, so that's probably not the problem, and receiving 2 faulty units in a row would be a bit weird, so I guess there's actually multiple versions (with a different digitizer controller IC?) which aren't compatible with each other... How do I make sure I'm getting the right one for my friend's phone? And, optionally, how would I go about convincing the seller to take this one back too and send me one that really works?
I'm having exactly the same issue...two replacement screens and touch input non responsive, re-install original and hey presto no problem...what I have noticed is that the part number on what I assume is the digitizer is different...
original -> KJ00423-101228-P00-7F-1
replacement -> KJ00423-101228-P00-5F-1
Yeah, my replacement says 6F-1 at the end, I can't check the original right now because my friend has his phone, but I'm willing to bet it doesn't say the same. Maybe I can make my case with this with the vendor, I'd really hate to have to buy another one of these displays for nothing
Guys,
It's the third SLCD screen that one of my fried is replacing to my I9023 Nexus S, and none of them is working. Yesterday he told me that when he bough the third one, the seller told him to "reprogram" the phone, because the drivers for new SLCD will be installed only then.
To be honest I didn't quite understood him, so, I though that the seller means to flash with a ROM. I did that, I installed CyanogenMod 9, everything went fine, but the touch still not working .
Does anyone knows how the phone could be completely wiped. Meaning everything what is in it to be reinstalled from the beginning....
I don't know what else to do, besides to buy a new phone
Hi All,
Just want to ask if anyone came to the solution yet ...?
Cheers,
no touch
Hello
i have the same problem:
1. The display works
2. But no touch reaction
i had bought a new screen for my I 9023 .
thanks for solutions
Yep, I have the same problem.
Original: KJ00423-101216-P00-1F-1
Replacement: (Not responding to touch): KJ00423-110207-P00-1F1
eBay Seller: mike410512
Bump - anyone sort this issue out?
I know this is an old thread, but since I have a shattered SLCD screen and i'm willing to replace it, i'd like to know what to do in case there's no touch response...
To get touch input again
Hi all,
I have smashed my phone screen twice on my S3 i9300. The first time I had the issue with the touch screen not detecting input but displaying correctly, I had taken it to an authorised repair centre and initially they did not know what was wrong.
There is only one way to "fix" this situation. You must remove the custom recovery and then reflash your phone with the stock samsung rom. Flashing the stock rom with stock recovery should pose no problem as it will be "official" and thus not blocked by stock recovery.
After reflashing, you must do a factory wipe + data reset. This is where you change your screen, making sure not to boot the phone for "the first time". If it does not work, repeat the reflash + factory wipe and try again.
The samsung rom will register the new hardware profile, and touch input will work. Why it works this way is beyond me, but taking these steps when changing the screen on a custom rom will ensure that the touch input works. Perhaps custom roms "borrow" drivers left over from stock rom? I don't know.
You can back up your current rom and restore after messing around with the samsung stock rom and you have gotten your touch screen working properly.
I have tried a whole heap of different "solutions" with this problem and this is the only one that works, and if you are taking it to a repair centre, make them aware that you have a custom rom installed.
Change screen
sinphild said:
Hi all,
I have smashed my phone screen twice on my S3 i9300. The first time I had the issue with the touch screen not detecting input but displaying correctly, I had taken it to an authorised repair centre and initially they did not know what was wrong.
There is only one way to "fix" this situation. You must remove the custom recovery and then reflash your phone with the stock samsung rom. Flashing the stock rom with stock recovery should pose no problem as it will be "official" and thus not blocked by stock recovery.
After reflashing, you must do a factory wipe + data reset. This is where you change your screen, making sure not to boot the phone for "the first time". If it does not work, repeat the reflash + factory wipe and try again.
The samsung rom will register the new hardware profile, and touch input will work. Why it works this way is beyond me, but taking these steps when changing the screen on a custom rom will ensure that the touch input works. Perhaps custom roms "borrow" drivers left over from stock rom? I don't know.
You can back up your current rom and restore after messing around with the samsung stock rom and you have gotten your touch screen working properly.
I have tried a whole heap of different "solutions" with this problem and this is the only one that works, and if you are taking it to a repair centre, make them aware that you have a custom rom installed.
Click to expand...
Click to collapse
Did anybody else use this way?
spanusorin2005 said:
Did anybody else use this way?
Click to expand...
Click to collapse
UP ..
i'm going to buy a screen + digitizer and i would have some advice about this, what code should i look ??? there are only two kind of screen or more ? what should i ask to the seller ???

[Q] 5158N replaced with 5158N.. no joy

I decided to learn tablets..so I took on a TF300T repair for a friend to start learning.Looks like this TF300T was the wrong choice.
Background.
TF300T Original digi was shattered and was barley working. possible ghost touches
Andriod 4.2.1
Original Digi 5158N FPC-1 06WW 2010 on the sticker JA-DA5158N-IBB 18140-10120500
I did check a few post before I bought a digitizer saw the issues with mixing different versions. So I went with an ebay digi from china with the 5158 model. I received the new on visual inspection it looks exactly the same. New Digi revived no white label but printed in small black ink on the new digi says 5158 12.28 D4\ 11205019701012D. At the bottom in white ink it says 5158N FPC-1 06WW 1225. seems like a match
I replaced the cracked screen went pretty smoothly. I put double sided tape on the digitizer plastic frame after cleaning the old junk off. I did not remove the top cover from the new tape,I just put the unit back together without screw so I could make sure it worked the plan was to test, re tear down then glue/tape the new digitizer down after I tested. Well I get no touch after the 5158N to 5158N swap.
unit loaded the first time and updated the camera firmware but not the touch
I did check the fuse on the main PCB around the LCD/touch connectors and found no burning.
the first time I powered the unit up with the new digi the screen jitterd a bit but no touch. after resetting the cables still no touch. the jitters stopped.. So at this point I ordered a USB adapter to connect a mouse.
This morning I received the mouse connector. went into settings it said. Touchpanel version ELAN-3011-4822 Kernal version 3.1.10-g215ac8bf
Also had a message about DMClient has stopped on first boot. went away after a few reboots.
Today I tried a cold boot after reading some post. It booted up showing the three icons RK/ANDRIOD/WIPE.. up at the top I got the following line:
andriod cardhu-user bootloader <1.00 e> released by "U5_epad-10.6.1.27.5-20130902" A03
key driver not found...booting 05
starting Fastboot USB download protocol
at this point in the cold boot booting the mouse and keyboard seem to be unresponsive. If I hit vol up I get booting kernal recovery image then i get an android logo and big error message sits there and then boots up normal.Still no touch.
After 1st cold boot I went back to check the touchpanel version and now it says ELAN-0000-0000 the Kernal version is a tad different now its 3.1.100-G215ae8bf
Is this normal and Ive missed something? Could it not be working because I ave not glued the new 5158 to the plastic frame?
Do i need to root the device then flash the touch firmware? Seems to me that it should have just accepted the new 5158 and worked that's why i spent the extra cash to avoid this kind of issue.
Any words of wisdom from some TF300T gurus would be a big help!
Forgot to mention at the time i replaced the touch digitizer I did not know to turn the service switch off. the battery was drained as it had ran down to nothing because I could not touch the power off. hopefully this didn't screw me?
CompJock said:
Forgot to mention at the time i replaced the touch digitizer I did not know to turn the service switch off. the battery was drained as it had ran down to nothing because I could not touch the power off. hopefully this didn't screw me?
Click to expand...
Click to collapse
Barring any hardware malfunction, the only way to find out is to root the thing and flash the firmware anew through ADB. This issue has been discussed so many times, it hardly warrants a new thread.
graphdarnell said:
Barring any hardware malfunction, the only way to find out is to root the thing and flash the firmware anew through ADB. This issue has been discussed so many times, it hardly warrants a new thread.
Click to expand...
Click to collapse
Thanks for the response. I apologize for the new thread, most of the other threads seem to deal with swapping mis matched digitizers and then flashing the rom. I thought because mine was an exact digitizer match it may be a different situation. i was just hoping that my experience had rung a bell and someone may point out my error.
At this point I'm pretty sure its not hardware the microsd card reader that shares the touch digitizer board works. and the touch ELAN chanaged to 0000-0000 only after I did a cold boot.
CompJock said:
Thanks for the response. I apologize for the new thread, most of the other threads seem to deal with swapping mis matched digitizers and then flashing the rom. I thought because mine was an exact digitizer match it may be a different situation. i was just hoping that my experience had rung a bell and someone may point out my error.
At this point I'm pretty sure its not hardware the microsd card reader that shares the touch digitizer board works. and the touch ELAN chanaged to 0000-0000 only after I did a cold boot.
Click to expand...
Click to collapse
Hi, i have the exact same issue. Also the system/etc/firmware/touch folder does not exist. I made it and put inside fw. The device whenever reboots it doesnt automatically update fw from the touch folder as it should. Through adb shell i always get error. Seems like the mobo not recognising digitizer. I also put the old broken one and still the same ELAN-0000-0000 i also forgot the off switch but i cant find any "weird" coil. Any help would be appreciated. I have read the other thread and learned a lot but nothing specific to this problem. Also my micro sd port was not working and i really thought was the pcb, but then i manually updated to the latest asus fw (from 4.1.1 to 4.2.1) and instantly micro sd works. When it wan on 4.1.1 i could find the touch folder and 04-3021-7038.ekt was inside (no label digitizer was the broken one and the new i bought as well). After the 4.2.1 update the touch folder disappeared and had to remake it. Tried with 04-3021-7038 and 02-3011-4820

Bought replacement LCD, replaced my broken one and now my touch doesn't work

Title explains all. I'm in a tight bind with money too..
I want to believe I can just reflash stock via odin and it will come back. Or is there something else I can do to make this work?
It sense touch 10% of the time, but it's never enough to unlock my phone or do anything with it.
Edit: the new screen worked perfectly before I did the operation. Don't know what went wrong. I didn't scratch or bend anything to my knowledge. The process took about 10 minutes and went really smooth.
kanzenmuketsu said:
Title explains all. I'm in a tight bind with money too..
I want to believe I can just reflash stock via odin and it will come back. Or is there something else I can do to make this work?
It sense touch 10% of the time, but it's never enough to unlock my phone or do anything with it.
Edit: the new screen worked perfectly before I did the operation. Don't know what went wrong. I didn't scratch or bend anything to my knowledge. The process took about 10 minutes and went really smooth.
Click to expand...
Click to collapse
Hello, I repair cellphones for a living. And it depends on a lot of things. My guesses are three things. From most likely to least likely.
1. You said that everything was working fine before you changed ROMS, it could be an incompatibly issue between the screen and the software. A lot of aftermarket screens are mostly compatible with stock, a lot have compatibility with custom ROM. It could be an issue solely on the software and not related to the screen.
2. There isn't a solid connection on the LCD connector, that usually happens with during installation, sometimes if the device is set down hard or dropped knocking the connection loose.
3. It's a defective screen. It happens sometimes. It's not uncommon for a screen to appear fine but after a few hours it acts up. It could have just been a coincidence that you noticed or went defective when you flashed (not saying flashing is responsible for this scenario).
Flash back to stock and then you'll have a great chance of to see which out of the 3 are responsible. Cheers.
I repair iphones, android devices, laptops, ect.
Sent from SM-G900Pkltespr
There are only 2 flex cables on the S5 LCD. Make sure the primary (top flex) is seated correctly, then the easiest thing to check before taking the screen back off is the flex under the battery cover. You will see a little screw near the lower right of the battery with a little cover. Pull up that cover while the battery is out and make sure that cable is seated correctly. If both flex cables are seated correctly then it can only be 1 of 2 things IMHO, the screen you purchased is defective or you bent some pins on the mobo where the flex cables attach. I don't think it's a rom issue.

Nexus 5 Audio and Black Screen Issues

Hi everyone, I'm have an issue with my Nexus 5 and hoping someone here can tell me whats going on.
It started off with the sound always cutting out, and I have to press the back part near the "S" logo for it to return.
Eventually the screen would go black but I can clearly see a back light is on. Now not only does the sound cut out, and screen goes blank.
It has become very sluggish to reboot it. I hold the power button until the phone reboots "Google" logo appears and the android animation. Now during this time the phone will be so slow to the point of being crippled out and i have to reboot it again and again until it is normal speed returns. Often it will black out during this time.
I'm just trying to understand what is failing. I tried safe-mode and it still has the issue. I cleared cache, reset the phone everything, nothing appears to fix the issue at all.
edit: I forgot to add, when I'm on YT or listening to music or browsing the web, even though the screen is blank with just the back light on, the sound is still going (when it works). I get text/call notifications still during this time.
My Phone Details.
Nexus 5
Android version, 6.0.1 (MOB30Y)
no ROOT
No replies at all, I guess I may have to garbage the phone. Idk what else to do with this device to fix it.
Please don't throw it away.
You said that pushing at a specific spot fixes the problem (or improves the audio situation). This means that it's a hardware problem. I have disassembled it many times and I know the layout. Behind the 'S' of NEXUS is actually the motherboard cover, and under it are 2 connectors; one for the battery and one for an extra 'board' that is located right underneath the LG logo on your back cover. On that 'board' is your screen connector, and also the speaker rests on there, as well as the primary microphone, 3G and 4G antennas and of course the USB port. The connector for this extra board is actually located a bit to the left on the 'S' (when you look at your phone from the back, it's more below the camera).
Now I have to note this: While using my phone, I have experienced some UI hiccups. At random times (very rarely) everything would just freeze for a few minutes, though music would still play. The power button was useless apart from the hard reset, it was so badly stuck. This was a software problem, although it appeared MOST at one point when my motherboard was faulty. Since I got a new device, it happened again but only once. I'm not sure that this is what you are experiencing. If this is the case, then it's a software fault. Never happened on CM so you can give it a try.
But since it's probably a hardware problem, you can always check it out yourself. Obviously if you have warranty you are covered. Otherwise, you can try disassembling it, at least take the back cover and the motherboard cover off, it's ridiculously easy, there is a disassembly guide from ifixit (I think) online, just be careful not to break the clips of the back cover (xp talking). If you open it, keep away metal things and the first thing you do after you remove the motherboard cover is remove the battery (xp talking again). Obviously turn off the phone properly before you attempt anything. Everything is sensitive in there so be careful. What you should look for is the long connector that connects the extra board that is located at the bottom of the phone with the motherboard. That's what you are pushing so if it's not sitting correctly, then that's your problem.
Plus, everything in there, apart from the motherboard, is cheap and can be found on eBay so don't worry if something is broken (unless it's the motherboard, then no hope ).
I hope I helped.
Firstly thanks for the reply. I did manage to remove the back and get to the connector you were saying. I reseated this and noticed the phone was working much better. I noticed the following still.
When it starts acting slow/crippled pressing this connector fixes the issue. However once the screen goes black with just a backlight this method is rendered useless. Also sometimes when I plug in the wire to charge it will cripple and or go black. So I wondering if the board is shot as you suggested to order a new one, or is it the connector strip ?
Again thank you for the response.
It seems like this board is causing everything. First, check the connector on the motherboard. Make sure that nothing is wrong on the motherboard. Then you can remove the bottom black plastic thing that has the speaker on it and 2 antennas. Then, inspect this board. Check the connector of the display. There is only one big connector on it. This board is glued on the frame of the phone. You can remove it but do it carefully. Do it slowly so that you don't break it. First, remove the antennas extension cables from either this board or the motherboard, and then pull it out.
This board is definately responsible for the black screens and audio issues (unless your display is faulty, check its connector), but I'm not sure about the phone being sluggish. Since this board offers input to the motherboard, I suppose that it could be its fault.
Remove it and inspect everything. Then, if you want, you can order a new one. If you come across D820 and D821 models, I don't think that this part of the phone has anything to do with it so don't worry.
I will take a further look into this for sure, and report back. If you can provide which motherboard is required for my device, so I can also read into this and so that I may order it right-away. Is there any model number or something that indicates which board to order once it is open?
Thanks again!
omega59 said:
I will take a further look into this for sure, and report back. If you can provide which motherboard is required for my device, so I can also read into this and so that I may order it right-away. Is there any model number or something that indicates which board to order once it is open?
Thanks again!
Click to expand...
Click to collapse
You don't need to change the motherboard, not to mention it's very expensive and hard to find. What you need to replace is probably the flex cable that goes below the battery. For example this.
This is not model specific, you can use it with all available Nexus 5 models (D820/D821, 16/32GB) so it doesn't matter what device you have.
FYI, if you think that you should replace your motherboard (you probably shouldn't), you need to take into account the storage (16/32GB) and the network differences (D820 or D821, the only difference is about the 4G networking, the american version has some bands enabled and some others disabled, and vice versa)
Okay, I just ordered the replacement flex cable. It is going to take about a month before it arrives from HK , I hope it fixes the issues. I will respond to this post once it is here and installed. Thanks again.
http://www.ebay.com/itm/271660361300?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
omega59 said:
Okay, I just ordered the replacement flex cable. It is going to take about a month before it arrives from HK , I hope it fixes the issues. I will respond to this post once it is here and installed. Thanks again.
http://www.ebay.com/itm/271660361300?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
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Click to collapse
in the meantime, pray it isn´t a motherboard issue, the conector can go bad and lose a few solder joints
I have exactly the same problem... I unmounted motherboard and clean everything but didn't help to much... did you find any solution ??
Siamer no solution just waiting for my delivery of the part. However it is getting worse with the blackscreens and crippled lag.
omega59 said:
Siamer no solution just waiting for my delivery of the part. However it is getting worse with the blackscreens and crippled lag.
Click to expand...
Click to collapse
my is the same. sometimes is working for few hours without any problems and than starting again, on the biggining it was power button problem but not I don't even touch that button (I use vol button to turn on) and sometimes screen getting black (with backlight on) and can't do anything so have to reboot... it's so anoying! Hope that parts will fix it, please let me know if you will find some solution. Today I will open phone and clean all connections etc...
Thanks,
siamer
I believe the part may fix it. I noticed if i run my finger along the strip the phone may uncripple itself or just turn black all together. I'm hoping it fixes it. I will report asap but this HK shipping is so slow it will be a month. Also there is no tracking
ATM i'am just trying to becareful with it trying not to trigger the issue. I just did an OTA update using FlashFire (6.0.1 (MOB31E) i wish v.7 will be available for my Nexus 5 ha ha!
Also if the Nexus 7p arrives I may just buy it to replace this Nexus5.
omega59 said:
I believe the part may fix it. I noticed if i run my finger along the strip the phone may uncripple itself or just turn black all together. I'm hoping it fixes it. I will report asap but this HK shipping is so slow it will be a month. Also there is no tracking
ATM i'am just trying to becareful with it trying not to trigger the issue. I just did an OTA update using FlashFire (6.0.1 (MOB31E) i wish v.7 will be available for my Nexus 5 ha ha!
Also if the Nexus 7p arrives I may just buy it to replace this Nexus5.
Click to expand...
Click to collapse
Hi Omega59.
Today I bought air compressed can(name: air dust) and open my nexus 5 as much as I could. I clean everything, every connector, every cable etc. and last few hours is working fine... even power button is working ok. I will let you know in next few hours how it will be, hope will be still ok
Good luck!
siamer
[edit]
there is still same problem, working better than before, black screen not showing so often but still showing... I think tomorrow I will order oneplus3... Would be nice wait to see new nexus but how... :/
Yeah I'm not sure when the Nexus 7p will arrive, they not even advertised much. I will assume next year?
OnePlus 3 looks nice, but compared to Galaxy 7 it's a bit better slightly. You should check out comparison charts
Maybe they are making a OnePlus 4 soon.
oneplus 3 already ordered. I don't like samsung. I would say nexus "7p" or "pixel xl" will be launch october as always prabaly 4th of october - leaks saing that... next oneplus will be launch around july next year as I know. the only phone that I was thinking about was oneplus, htc10 or new nexus but can't wait to see nexus...
today by excident I broke screen in my nexus 5, got a little bit angry
Regards,
siamer
omega59 said:
Siamer no solution just waiting for my delivery of the part. However it is getting worse with the blackscreens and crippled lag.
Click to expand...
Click to collapse
You probably don't want to hear this, but if it's getting worse, it's probably because of the pressure you apply to it, you make it worse. Be careful when you apply pressure around the motherboard since it's very sensitive. You REALLY don't want to break the motherboard. So if you find yourself pushing on the motherboard too often, you might want to leave it and wait for the replacement part so you won't ruin it.
Waiting for your news...
My part arrived yesterday. I put it in was pretty easy, however the first attempt i had to redo the top connector bc it was still black screen and no audio. After I disconnected the top connector ran some alcohol over it, re-put the top part things are working okay.
Just a note, the little USB connector (charger slot) seems to be very tight compared to the old one. Maybe bc it's new and not as worn down. But even just to put the wire in, requires more of a push, same with removing it.
I will see how it goes before I can really say that was the issue. I will report after a few days about it.
siamer said:
oneplus 3 already ordered. I don't like samsung. I would say nexus "7p" or "pixel xl" will be launch october as always prabaly 4th of october - leaks saing that... next oneplus will be launch around july next year as I know. the only phone that I was thinking about was oneplus, htc10 or new nexus but can't wait to see nexus...
today by excident I broke screen in my nexus 5, got a little bit angry
Regards,
siamer
Click to expand...
Click to collapse
I don't think N7P will be out this year, they have not advertised anything and we are almost in Oct. Right now they are all rumors.
omega59 said:
My part arrived yesterday. I put it in was pretty easy, however the first attempt i had to redo the top connector bc it was still black screen and no audio. After I disconnected the top connector ran some alcohol over it, re-put the top part things are working okay.
Just a note, the little USB connector (charger slot) seems to be very tight compared to the old one. Maybe bc it's new and not as worn down. But even just to put the wire in, requires more of a push, same with removing it.
I will see how it goes before I can really say that was the issue. I will report after a few days about it.
Click to expand...
Click to collapse
When I changed my screen and housing it was difficult to slide the USB connector in too. Just make sure that everything is in place, there is a rubber think for the microphone, maybe that's what's in the way. Don't stress the connector too much.

Question Make a backup from recovery?

I really busted up my phone this weekend. The screen is dead and I'm sure the digitizer is as well. I already got a new phone but I would really like to be able to recover my Signal messages. I thought I was backing them up to the SD card but they are actually on the internal storage. A couple questions:
1. Is there any way to be able to control the phone while also using an external display? I tried a couple different Type C dongles that have HDMI and a USB port but neither did anything and even my replacement phone didn't do anything in response. I've got Teamviewer installed that could possibly let me in (don't know if it's set up) but I don't know how to get past my decryption password prompt.
2. Is there any way to make a backup of the filesystem? I realize it would be encrypted but I do know my password if it's possible to somehow use that with some software. I've always had TWRP installed on my past phones so it was trivial to make nandroid backups. This phone is the US version and I had no ability to unlock the bootloader so it's completely stock.
The encryption keys are unique and tied to that current OS load. A factory reset destroys those keys. The password isn't the encryption key...
Unless you can access it remotely this is your only other option.
blackhawk said:
The encryption keys are unique and tied to that current OS load. A factory reset destroys those keys. The password isn't the encryption key...
Unless you can access it remotely this is your only other option.
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Click to collapse
That's disappointing. I'll got an identical phone now so I may try just following the same finger presses side by side to see if I can get it unlocked and get some sort of remote viewer installed. Another option I thought of is just to replace the screen but that's a bunch of work and would certainly be my last resort. The frame was a little bent but new screens come with a frame so as long as nothing further is damaged, it might work.
duttondj said:
That's disappointing. I'll got an identical phone now so I may try just following the same finger presses side by side to see if I can get it unlocked and get some sort of remote viewer installed. Another option I thought of is just to replace the screen but that's a bunch of work and would certainly be my last resort. The frame was a little bent but new screens come with a frame so as long as nothing further is damaged, it might work.
Click to expand...
Click to collapse
Using the new phone as a template may work.
Realize the mobo may have been damaged as well.
Use a good case to protect your new phone.
I use the Zizo Bolt for my N10+, it would've been destroyed long ago without it. Provides excellent protection in 3-4 foot drops onto concrete. Zero damage after 3 years.
Backing up all critical data is the only way to prevent this from happening again, eventually.
Try to find apps that support import/export file backup like Poweramp and ColorNote. Samsung contacts support it too.
I got a new display and tried to migrate all the pieces over. One row of the contacts of the FPC connector on the motherboard were broken off along with some minor damage to the other FPC connectors. I can buy a new flex cable and daughtercard. The phone basically got bent so the FPC connectors and bluetooth cable were pulled sideways. Getting this thing working again would require a new daughtercard, a new flex cable, a new bluetooth cable, and a new FPC connector for the motherboard (yikes) which are all available for little cost. I've actually got the skills and gear to do the connector replacement but just not the time. Maybe I'll do it someday when I've got some freetime at work.
The actual screen replacement was surprisingly easy with a heatgun, a single spudger, and a #00 phillips. I found the FPC connectors much easier to use than the old days when everything used those ribbon cables that would slide into connectors and be held in with plastic clips, they were super easy to damage.
Interestingly, the replacement screen I got has a slightly thicker bezel. It looked legitimate but has a slightly different ending number in the Samsung part number.
Sounds like a mess. Probably more hidden damage.

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