Serious Post For Fingerprint Button - Lenovo ZUK Z2 (Plus) Questions & Answers

Hey, months ago my battery was swollen up I decided to change it so I ordered a new battery.. A few days back I got my new battery *original* after replacing the battery I found that my fingerprint sensor button isn't working when I touch.. The only thing I can do with it is just press it.. Pressing the home button works but nothing happens when I touch it..
Please give the solutions guys I changed the roms twice even flashed the stock rom.. But nothing happened..
Please share the answers

Reopen your phone and check near the home button, you may have dislodged/damaged the connector that goes to the sensor. If it's just out of place, take it out and put it back in, making sure it snaps in properly. If it's torn somewhere you will need to order a new one.

NSDCars5 said:
Reopen your phone and check near the home button, you may have dislodged/damaged the connector that goes to the sensor. If it's just out of place, take it out and put it back in, making sure it snaps in properly. If it's torn somewhere you will need to order a new one.
Click to expand...
Click to collapse
I checked, no wire is torn it is safe as it was... What should I do now ?

Zukker said:
I checked, no wire is torn it is safe as it was... What should I do now ?
Click to expand...
Click to collapse
It won't be a wire, it would be a ribbon connector, like this: https://www.ebay.com/itm/Boton-de-I...hash=item33ea2b57dd:m:mcafy4h6tL2vnIt0TJT6vaw
If you're sure it's not broken, just pull it out and snap it back into place. Wiggle it a little to make sure it's not loose. Then put your phone back together and check.

Related

[Q] Problems with power button and no way to fix it, workarounds?

It seems that my power button has died on my Galaxy Nexus, which is a huge pain in the strategical locations. While I know how to turn the phone off should it shut down, I have no idea how to handle anything else. I have my friends CALL ME to be able to unlock the phone and use it.
There are some apps on Android Market that specifically state that they fix power buttons, but none of them work with the latest versions of Android according to the reviews (if there's any I've missed, let me know).
I know that the phone can be turned off using a charger, since plugging it in or out makes the screen turn on. But are there other ways to turn on the screen, since it's a phone and I'm mobile most of the time?
Is there another way to remap the keys on Android? Note that I cannot root my phone, so options like that are not good either.
Is there a way to remotely turn on Android phone with a tablet through some app? Since I'm carrying my Nexus 7 with me and it uses my phones internet connection to stay online. I tried to find an app that does this, but could not find any.
Any help is much appreciated! I do not wish to buy Nexus 4 at the moment because it isn't much of an improvement and sending it back to UK for warranty seems like a huge mess that I would rather avoid for now.
Thanks!
kristovaher said:
It seems that my power button has died on my Galaxy Nexus, which is a huge pain in the strategical locations. While I know how to turn the phone off should it shut down, I have no idea how to handle anything else. I have my friends CALL ME to be able to unlock the phone and use it.
There are some apps on Android Market that specifically state that they fix power buttons, but none of them work with the latest versions of Android according to the reviews (if there's any I've missed, let me know).
I know that the phone can be turned off using a charger, since plugging it in or out makes the screen turn on. But are there other ways to turn on the screen, since it's a phone and I'm mobile most of the time?
Is there another way to remap the keys on Android? Note that I cannot root my phone, so options like that are not good either.
Is there a way to remotely turn on Android phone with a tablet through some app? Since I'm carrying my Nexus 7 with me and it uses my phones internet connection to stay online. I tried to find an app that does this, but could not find any.
Any help is much appreciated! I do not wish to buy Nexus 4 at the moment because it isn't much of an improvement and sending it back to UK for warranty seems like a huge mess that I would rather avoid for now.
Thanks!
Click to expand...
Click to collapse
First, try pgm (slide 2 wake).
Secondly, why can't you root the device? Once you have your screen on, you can turn on USB debugging, and use to it reboot to recovery or fastboot.
Third, there's some experience from users that fixed their own device's power button.
Sent from my Nexus
Buy a new power button and put it in.
For Toro & Toroplus:
http://www.etradesupply.com/oem-samsung-galaxy-nexus-sch-i515-power-button-flex-cable-ribbon.html
For everything else:
http://www.parts4repair.com/samsung-galaxy-nexus-i9250-power-flex-cable/
kristovaher said:
It seems that my power button has died on my Galaxy Nexus, which is a huge pain in the strategical locations. While I know how to turn the phone off should it shut down, I have no idea how to handle anything else. I have my friends CALL ME to be able to unlock the phone and use it.
There are some apps on Android Market that specifically state that they fix power buttons, but none of them work with the latest versions of Android according to the reviews (if there's any I've missed, let me know).
I know that the phone can be turned off using a charger, since plugging it in or out makes the screen turn on. But are there other ways to turn on the screen, since it's a phone and I'm mobile most of the time?
Is there another way to remap the keys on Android? Note that I cannot root my phone, so options like that are not good either.
Is there a way to remotely turn on Android phone with a tablet through some app? Since I'm carrying my Nexus 7 with me and it uses my phones internet connection to stay online. I tried to find an app that does this, but could not find any.
Any help is much appreciated! I do not wish to buy Nexus 4 at the moment because it isn't much of an improvement and sending it back to UK for warranty seems like a huge mess that I would rather avoid for now.
Thanks!
Click to expand...
Click to collapse
I had a similar problem with my Samsung Captivate a long time ago. I used WidgetLocker and enabled volume wake function. It uses volume buttons to wake the screen. I'm not sure if this feature is still available, but it's worth a try. If it is not, you can ask for a refund. There are also several apps/widgets to put the phone to sleep. I used this combo for a few months before I got a new phone. Hope this helps :fingers-crossed:
I still haven't found a solution and these apps that say they are a solution, do not work on latest versions of Android. Any other options?
kristovaher said:
I still haven't found a solution and these apps that say they are a solution, do not work on latest versions of Android. Any other options?
Click to expand...
Click to collapse
download intellicover app from play store. does not require root
i think pgm is the solution, but you have to root the phone
I've managed to fix my power button recently, its a hardware problem. Do this only if you dont have warranty and are comfortable with opening up your Nexus.
Go to iFixit website and follow instructions to dissassemble the Nexus, its quite easy, a few screws and flat cable disconnects. Next, you need to remove your power button flex cable from the motherboard, do this by lifting the cable connector on the motherboard up and pulling it gently out.
Next thing is a bit tricky and you need to have pretty good sight and precision.
On the flex cable the button consists of 2 pieces, the flex cable and the button itself, which is like a black sticker sticked on the flex cable.
I've removed the sticker and the button that is glued to it with a scalpel (careful!!) and I've found actually rust and dirt on contacts (dunno how rust got there, i have expected dirt only), and then with my scalpel I've carefully scratched the dirt and rust of both parts of the button and its contacts on the flex cable. After that I've put the black sticker back on the flex as it was before (if it wont glue tape it with a small piece of tape) and return everything where it was and assemble Nexus back togeather. And voila! It works!
Keep in mind that I didn't have warranty so it was either open up and try to repair or toss a $200 device. Also, I'm not responsible for any damage that you do to your phone, this is just a brief description of my power button fix. Hope there will be more successful repairs :fingers-crossed:
I had to use volume_wake, while waiting for replacement power button. But this feature does not present on stock roms.
I believe i've read about remapping the hardware buttons; if you're interested, search google. I personally prefer and use smart screen on. I just wave over the proximity sensor and the screen turns on.
Try procedure described here: http://androidforums.com/samsung-galaxy-nexus/700265-power-button-not-working.html#post5797688.
I was very skeptical, but it indeed worked on my phone. Power button started to act normally again! I was amazed!
Wlld1 said:
I had to use volume_wake, while waiting for replacement power button. But this feature does not present on stock roms.
Click to expand...
Click to collapse
This would be the easiest thing to do if you're already rooted
Sent from my Galaxy Nexus using Tapatalk 2
dj_chapz said:
On the flex cable the button consists of 2 pieces, the flex cable and the button itself, which is like a black sticker sticked on the flex cable.
I've removed the sticker and the button that is glued to it with a scalpel (careful!!) and I've found actually rust and dirt on contacts (dunno how rust got there, i have expected dirt only), and then with my scalpel I've carefully scratched the dirt and rust of both parts of the button and its contacts on the flex cable. After that I've put the black sticker back on the flex as it was before (if it wont glue tape it with a small piece of tape) and return everything where it was and assemble Nexus back togeather. And voila! It works! D
Click to expand...
Click to collapse
Thank you so much for this! Mine just died an hour ago and I have already fixed it in under 20 minutes.
doomed151 said:
Thank you so much for this! Mine just died an hour ago and I have already fixed it in under 20 minutes.
Click to expand...
Click to collapse
Glad to be of help :good:
Solved the same problem with dj_chapz suggestion posted here http://forum.xda-developers.com/showpost.php?p=41282390&postcount=8
After I split in half the button I found oxidized contacts with green and black scurf. Cleaned it with little amount of ethyl - works perfectly!
dj_chapz said:
I've managed to fix my power button recently, its a hardware problem. Do this only if you dont have warranty and are comfortable with opening up your Nexus.
Go to iFixit website and follow instructions to dissassemble the Nexus, its quite easy, a few screws and flat cable disconnects. Next, you need to remove your power button flex cable from the motherboard, do this by lifting the cable connector on the motherboard up and pulling it gently out.
Next thing is a bit tricky and you need to have pretty good sight and precision.
On the flex cable the button consists of 2 pieces, the flex cable and the button itself, which is like a black sticker sticked on the flex cable.
I've removed the sticker and the button that is glued to it with a scalpel (careful!!) and I've found actually rust and dirt on contacts (dunno how rust got there, i have expected dirt only), and then with my scalpel I've carefully scratched the dirt and rust of both parts of the button and its contacts on the flex cable. After that I've put the black sticker back on the flex as it was before (if it wont glue tape it with a small piece of tape) and return everything where it was and assemble Nexus back togeather. And voila! It works!
Keep in mind that I didn't have warranty so it was either open up and try to repair or toss a $200 device. Also, I'm not responsible for any damage that you do to your phone, this is just a brief description of my power button fix. Hope there will be more successful repairs :fingers-crossed:
Click to expand...
Click to collapse
I just did this repair and I have large clumbsy fingers. thank you! I just had to remove corrosion between the button contacts and around. i dabbed nail polish remover (i'm not sure if that is a bad idea or not, but it got my phone working!) and did a little bit of scraping. on my sch-i515 there was a some clear plastic folded over the back sticker part that i had to get up, then i was able to get the black part up without having to fully remove it.

[Q] Screen not working after opening back panel

Hi everyone.
So Ive been having problems with my glide keyboard being loose. everything else was working fine tho. today it completely fell off, only the screen cable/ribbon were holding the two pieces together. so i decided to take apart the back panel and reattach the keyboard. a few screws to take take out and put in. a simple fix right? wrong! after finding the screws to replace the missing ones that caused the keyboard to fall away, and putting everything back in place... THE SCREEN WOULDNT TURN ON! the phone did light up and vibrate but the screen is completely not alive. i took everything apart again and even double checked the screen connection, tried again and lo, the screen still wasnt working...
i dont know what to do....is there a possibility that i damaged the ribbon, or i need to reset something... what could be wrong?
been searching for fixes all day and came up with nothing... any help would be appreciated :fingers-crossed::fingers-crossed:
ribbon
Try to change the ribbon if it's not that expensive. Maybe because of the stress on it, it went bad.
The ribbon cable is around 60$ us, i broke mine trying to replace my ear speaker
Sent from my SGH-I927 using xda app-developers app
Monad_Mind said:
Hi everyone.
So Ive been having problems with my glide keyboard being loose. everything else was working fine tho. today it completely fell off, only the screen cable/ribbon were holding the two pieces together. so i decided to take apart the back panel and reattach the keyboard. a few screws to take take out and put in. a simple fix right? wrong! after finding the screws to replace the missing ones that caused the keyboard to fall away, and putting everything back in place... THE SCREEN WOULDNT TURN ON! the phone did light up and vibrate but the screen is completely not alive. i took everything apart again and even double checked the screen connection, tried again and lo, the screen still wasnt working...
i dont know what to do....is there a possibility that i damaged the ribbon, or i need to reset something... what could be wrong?
been searching for fixes all day and came up with nothing... any help would be appreciated :fingers-crossed::fingers-crossed:
Click to expand...
Click to collapse
What was the result? I have the same issue and replaced both screen and ribbon but the display does not light. Only the lower shortcut lights up (home, search, back etc.).

[Q] HELP! F180 Not booting/Red LED blinking problem

Hi mates. I have a weird problem. Just last night I am restoring a Nandroid Backup of VANIR ROM for geehrc, which DONT have a problem with my phone. When suddenly after booting and showing the lockscreen, the phone becomes unresponsive and after a few seconds, turns off. After that, It wont boot, even fastboot or recovery wont show up. Even tried the hard reset combo, but to no avail. Download mode works, but I have not tried to flash KDZ yet. Also when I plug in the charger, LG logo shows up then a blank grayish screen, then a battery icon with charging animation, plus a label that says 0% charging. I leave it for about 4 hours, thinking that the phone might just depleted the battery. But still it wont turn on. When I turn it on while plugged in, the LED blinks in red color. The blinking is continuous. What seems to be the problem? Is it hardware or software issue? Please help me guys! :crying:
Any help mates?
Im really loosing my hope reviving my device. Tried different methods from the web. I just flashed KDZ, but the phone keeps flashing the LG logo when plugged in. When I unplug the charger, and power on the phone, nothing happens! Damn. Can anyone give an insight on what might cause the problem? Thanks in advance!
Sorry to hear about your troubles! Honestly, I have no idea what could have caused this, but if I had the same issue, and nothing worked as you described, I would probably crack the phone open, disconnect the battery and just let it sit for a day or so. Then reconnect it, and try powering up again (might need to charge it first). Who knows whether it helps or not, but it definitely wouldn't hurt, and you don't seem to have a lot of options right now...
It's interesting that the download mode still works. The common wisdom says that you should be good after flashing stock KDZ, but your experience shows otherwise...
i've experienced it before. It happen due to your battery is out of charge. What i do is, i open the case, pullout battery and install back.
After that i charge the phone. And voila...charge is on..and my hp on too. :good:
kt-Froggy said:
Sorry to hear about your troubles! Honestly, I have no idea what could have caused this, but if I had the same issue, and nothing worked as you described, I would probably crack the phone open, disconnect the battery and just let it sit for a day or so. Then reconnect it, and try powering up again (might need to charge it first). Who knows whether it helps or not, but it definitely wouldn't hurt, and you don't seem to have a lot of options right now...
It's interesting that the download mode still works. The common wisdom says that you should be good after flashing stock KDZ, but your experience shows otherwise...
Click to expand...
Click to collapse
Thanks for your feedback! It's really weird. I have flashed 3 KDZ's already. From Original F180K to E975. Nothing. Other option I have aside cracking it open is returning it to the seller fro check up. But that's the last resort. I suspect something got "unglued" while I am using it. Since the device got really hot before it happened.
mark_vyz said:
i've experienced it before. It happen due to your battery is out of charge. What i do is, i open the case, pullout battery and install back.
After that i charge the phone. And voila...charge is on..and my hp on too. :good:
Click to expand...
Click to collapse
Will definitely try this. Thanks for the advice. How long should I remove the battery?
I just removed for a second and put it back. Most probably due to battery not fit. So i just retighten it.
Sent from my LG-E975 using xda app-developers app
MitoTakatori said:
Will definitely try this.
Click to expand...
Click to collapse
Should you go ahead with it, and in case you've never opened an OG before, just a little advice... It's not difficult, but you need to watch for a couple of things:
1. Make sure you remove the SIM tray BEFORE removing the back cover.
2. Start opening it from the bottom (after removing two screws), and work your way along the sides to the top. When putting it back together, go in reverse (top to bottom).
3. Be careful around the SIM slot and the buttons when prying the cover open -- it's easy to break a thin "bridge" on the side of the cover. Just don't push on those areas.
4. When putting the cover back on, it might be a bit tricky to hold power and volume buttons in position. The easy trick is to use a piece of scotch tape on the outside, so they don't fall in.
Good luck!
kt-Froggy said:
Should you go ahead with it, and in case you've never opened an OG before, just a little advice... It's not difficult, but you need to watch for a couple of things:
1. Make sure you remove the SIM tray BEFORE removing the back cover.
2. Start opening it from the bottom (after removing two screws), and work your way along the sides to the top. When putting it back together, go in reverse (top to bottom).
3. Be careful around the SIM slot and the buttons when prying the cover open -- it's easy to break a thin "bridge" on the side of the cover. Just don't push on those areas.
4. When putting the cover back on, it might be a bit tricky to hold power and volume buttons in position. The easy trick is to use a piece of scotch tape on the outside, so they don't fall in.
Good luck!
Click to expand...
Click to collapse
Thanks a lot for the tip! Actually I already opened it, only problem left is the battery. How can I remove it?
MitoTakatori said:
Thanks a lot for the tip! Actually I already opened it, only problem left is the battery. How can I remove it?
Click to expand...
Click to collapse
I wouldn't suggest actually removing the battery, unless you absolutely have to. It's mounted by a double-sided adhesive tape, so taking it out is a bit tricky. My idea was just to disconnect it. You need to undo two screws that secure the power connector, right below the camera flash. The screws are under the plastic tape, just peel it off. When you remove those screws, carefully pull the connector up. That's it. Check the contacts for any signs of damage or corrosion, and clean up as needed. When reconnecting it, push firmly to make sure it sits properly.
kt-Froggy said:
I wouldn't suggest actually removing the battery, unless you absolutely have to. It's mounted by a double-sided adhesive tape, so taking it out is a bit tricky. My idea was just to disconnect it. You need to undo two screws that secure the power connector, right below the camera flash. The screws are under the plastic tape, just peel it off. When you remove those screws, carefully pull the connector up. That's it. Check the contacts for any signs of damage or corrosion, and clean up as needed. When reconnecting it, push firmly to make sure it sits properly.
Click to expand...
Click to collapse
Nice tip again! Thanks! Now I don't have remove the battery. Only problem left is finding the small philips screw driver. Haha. Hoping that this solve the problem. If not, bye LGOG.
Thanks for all the helm mates! My LGOG is back in action!! Thanks again! :laugh: :good:
MitoTakatori said:
Thanks for all the helm mates! My LGOG is back in action!! Thanks again! :laugh: :good:
Click to expand...
Click to collapse
Great to hear! Congrats!
kt-Froggy said:
Great to hear! Congrats!
Click to expand...
Click to collapse
Now I am running Mokee's latest build. And will flash again VANIR. Thanks again guys. Thought I have to buy a new phone.
hi, same problem... but i must search at home if i can find a tool to open the screw... i only have - and + in this size and didnt work i miss my phone ((
ok. worked for me fine! Thanks!
now 80% battery instead of 0% very cool
and now i know how it looks into the phone very good working LG...
No more charge stuck on 0% sulation
when I plug in the charger, LG logo shows up then a blank grayish screen, then a battery icon with charging animation, plus a label that says 0% charging. I leave it for about 4 hours, thinking that the phone might just depleted the battery. But still it wont turn on.
SOLUTIONS:
1st take battery out of cell.
Leave in direct sun light for 1 hrs.
Clean battery pin with soft brush.
Charge battry manualy by Desktop charger about 2 to 3 hrs.
Put battery back in phone and start charging.
It will done Insha ALLAH.

How to access internal storage when power button is ripped ?

Hello,
I have a Samsung Galaxy Nexus. Yesterday, power button has stopped to work. Nothing was happened when I pushed it.
I tried to open the device (my mistake ) and I tried to see if there was a problem. By opening device, I have accidentally ripped the power button component. So, now it's not connected to the nappe.
Logically, it's impossible to start device now without that connection between power button and nappe.
My problem is that the internal storage of my device contains a lot of photos that I would like to save.
Do you know if there is a way to get these photos ?
Thanks by advance for your help.
Sylvain
boot
i had that problem with another phone....which had a work around
but you may not like it.
1. you may be able mess with the pins in micro usb to get it to "trick" itsleslf on (idk if itll work for this phone, dont really wanna risk frying the phone too)
2. buy a new ribbon online. i took mine apart to paint it . and luckily this phone has a ribbon that slides and locks onto the board instead of soldered on
3.idk what bootloader you have but yours may have an option to take the battery out. *button press comb.* then you can get into download mode(which wont help) but could bring you into the bootloader....unlocked of course.
otherwise....
~*option 2*~ is the best course to take...and they are cheap
rlparnell said:
i had that problem with another phone....which had a work around
but you may not like it.
1. you may be able mess with the pins in micro usb to get it to "trick" itsleslf on (idk if itll work for this phone, dont really wanna risk frying the phone too)
2. buy a new ribbon online. i took mine apart to paint it . and luckily this phone has a ribbon that slides and locks onto the board instead of soldered on
3.idk what bootloader you have but yours may have an option to take the battery out. *button press comb.* then you can get into download mode(which wont help) but could bring you into the bootloader....unlocked of course.
otherwise....
~*option 2*~ is the best course to take...and they are cheap
Click to expand...
Click to collapse
Hello,
Thanks for your answer.
I took option 2 for the moment and I bought power button nappe on internet.
I wait to receive it and i will try the operation of last chance lol.
Sylvain
assembly
When I put mine back together. The sticky back to the buttons wouldn't hold to put it back together.
I used a razor....clean it up and scrapped the sticky back to some Velcro I had.
I would hope they send it with the ?double sided tape? Needed to hold it on.

Black Shark 3 Blocked

It was a normal day, I just left my house with my Black Shark 3 fully charged, I used it for some messages and simple things when at 2 hours it turns off by itself and cannot be turned on, instead it vibrates every 15 seconds, does not react to the charger or show any information on the screen, just dead except for vibrating and vibrating. The recovery mode does not work, the key combination turn off + volume up or down is useless. Help!!! I never touched or modified it, it was completely updated to the default official versions, I learned to accept my Chinese version with Google complications and language support, I accepted it as it was KLE-A0 with JoyUi 12.5 and Android 11
{Mod edit: Quoted post has been deleted}
How? You can help me
Her0. said:
How? You can help me
Click to expand...
Click to collapse
try flashing qfil ROM. PM me i'll guide you
slashyuz6 said:
try flashing qfil ROM. PM me i'll guide you
Click to expand...
Click to collapse
I do not know much about how to do this, thanks bro for the support, I only know that it does not respond when connecting it to the PC, it is totally dead ... I wanted to rule out some hardware problem but I also can't find how to uncover it
Her0. said:
I do not know much about how to do this, thanks bro for the support, I only know that it does not respond when connecting it to the PC, it is totally dead ... I wanted to rule out some hardware problem but I also can't find how to uncover it
Click to expand...
Click to collapse
then you need to pull out the battery connector, both of them, then do the test point method (you need to take out the back cover of your phone). i was facing the same problem like yours, that's how i bring the phone back to life.
slashyuz6 said:
then you need to pull out the battery connector, both of them, then do the test point method (you need to take out the back cover of your phone). i was facing the same problem like yours, that's how i bring the phone back to life.
Click to expand...
Click to collapse
I don't see any screws on the back of the black shark, neither on the sides ... Maybe the screen will have to be taken off but it makes me insecure
Her0. said:
I don't see any screws on the back of the black shark, neither on the sides ... Maybe the screen will have to be taken off but it makes me insecure
Click to expand...
Click to collapse
the back cover is attached by using double sided tape, you just need to heating up the back cover with heat gun or hairdryer to soften the glue. just search on youtube, how to take off the back cover. you can PM me if you need help.
slashyuz6 said:
then you need to pull out the battery connector, both of them, then do the test point method (you need to take out the back cover of your phone). i was facing the same problem like yours, that's how i bring the phone back to life.
Click to expand...
Click to collapse
u dont need to open cover for edl. when phone is off, hold volume down + plug phone to pc. it should be detected as edl mode. check pc device manager to confirm
Jbazt_katuforzs said:
u dont need to open cover for edl. when phone is off, hold volume down + plug phone to pc. it should be detected as edl mode. check pc device manager to confirm
Click to expand...
Click to collapse
the phone is totally dead, no response to any button or any computer, even not responding to the charger. it is just plain dead. i was also experiencing the same exact problem. the last thing he can do is only do the test point method which require him to open up the back cover.
Do not pay anything to anyone trying to offer you help for $. Either your device is physically damaged (in which case it needs to go in for repair) or it can be fixed with some study and help.
Hello friends, after all, when I press and hold the volume down key, it seems to achieve a connection in PCSUITE, however, it asks me to connect in a normal way before
What do you think that in the end what muy BS3 have is that the board burned, I always thought that that heat could be taken well by the device after all it is Gaming with liquid cooling, right?

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