No Fastboot/Flashmode, no LED - Xperia Z2 Q&A, Help & Troubleshooting

Hi guys,
so I'm having a minor (maybe major) issue with my device. I'm (was) running the Resurrection Remix Oreo without problems. I did have an annoying problem with my proximity sensor tho (black screen when making a call, up until now I used the power button to hang up).
I tried to disable the sensor using sensor disabler from the xposed framework. After reboot I tried making a call and my phone shut off.
No LED, no falshmode, no fastboot, no vibrating after holding down power+volume up. Any idea of how to fix this?
Any help would be much appreciated.
Cheers
Edit: Got this fixed by simply de- and re-connecting the battery. All good!

How did you get to the battery if I may ask?

bastadur said:
How did you get to the battery if I may ask?
Click to expand...
Click to collapse
Oops, im sorry, I overlooked your reply. You have to open the backcover to get to the battery. It's really easy, just heat the back up a little using a hairdryer, carefully lift the cover at the top using a suction cup and try to get underneath it using a plastic pick (a butter knife also does the job if you're careful). After you're in, just work your way around the back cover until it comes off.
Check this video, if something's not clear
Sorry again for the late reply!:angel:

Related

Screen Stays Off After Call HELP!

Hey, I'm currently using CyanogenMod 6.1.1
In the past week when I am on a call, and I take the phone away from my ear, the screen does not turn back on.
This means I cannot disconnect the call or call anyone or do anything.
It remains off even if I press the power button, volume buttons or circle button.
If anyone has any ideas on why this is happening or how to fix it I would really appreciate it, Thanks!
It's the proximity sensor. Did you replace the screen recently?
Sent from my Liberty using Tapatalk
Yes I did, I thought I did so correctly but I guess not.
Any idea what could be wrong? Is there a software setting I could set it to just look at orientation not proximity sensor??
You didn't install the tiny rubber cover for the proximity sensor, it won't work properly without it.
You can either fix this or someone posted a hack to disable the sensor a while ago on here. Search for it.
Sent from my Liberty using Tapatalk
I am currently having this problem, and in the process of finding a replacement for the rubber cover... I just wanted to post a TEMPORARY work around for anyone that runs into this problem:
If the phone is set to keep the screen awake while charging, plugging in the phone (USB or AC) will return the screen after a call. You must have the phone unplugged first (making a call while charging requires unplugging the phone, and then plugging it in again)
Hope this helps anyone with this issue
There's also a temporary fix that you might find useful: just hold it up to a light. Flash the light in the top right corner. Doesn't matter whether you hold it under a lamp, use a flashlight, I even use my bic lighter to activate it. The screen will then turn on again.

[Q] Menu button flashing issue

Hi to everyone in this forum. I've recently received as a present a new toshiba folio 100, but, since I'm experiencing an annoying menu button flashing, I've thought of it as a software problem so I upgraded the folio using the foliomod1.3c and applied the rotate patch and also the 1.3c fix patch. The menu still flash with no apparent logic. I've tried to kill all applications running and it's still there. It seem to come up and down at random. I ask to all in this forum: do you believe it's a hardware issue or is a software issue? Because if it's a hardware issue I'm going to try to have a new folio from toshiba. I'm overall very pleased with the work that Dexter made to make the folio an usable machine but this flashing is driving me crazy. I use the folio basically as a portable scientific pdf reader so I need to concentrate on what I read and this flashing is really annoying. I would like very much to thank you all in this forum in advance for all the suggestion/help you could provide.
use my "foliobuttons" app
teknoraver said:
use my "foliobuttons" app
Click to expand...
Click to collapse
I have a request that serve All those who suffer MENU crazy button .
Is it possible to prepare application you can setting ON/OFF the MENU button
Most of the time useless button.
sometimes button jump after 10 minutes, sometimes after an hour
Usually I fix the problem by changing the settings with FolioButtons 1.1.
If you could add to FolioButtons on/off operation for menu Buttons was the best.
Hi teknoraver,
Can you add enabled/disabled menu button in foliobuttons application ?
flashing on...
teknoraver said:
use my "foliobuttons" app
Click to expand...
Click to collapse
I am pretty desperate about this issue, because none of the methods seem to help...
Right now the buttons work opposite- Menu button flashes mad and none of the other 3 responds...dont know how it happened
Just a thought- while the folio is booting up the menu button ALREADY flashes! I have zero understanding in there but isn't it a process that loads / starts early in the line?
I appreciate everyone's effort trying to solve this bug as it makes this handy tool a useless pile of crap.
I was wondering how many folio users are suffering of this crazy buttons madness.
Mine was crazy from the very beginning; I sent it back for repair and toshiba only did a firmware restore... Nothing changed at all!
It makes my folio almost unusable!
bye bye crazy buttons
After two weeks of testing and a complete breakdown of my folio100, I finally find the problem or just crazy buttons and freezing of the screen.
I drag a thickness in the screen in the bottom right corner of the screen to isolate the audio connector and it works better than a miracle again.
The only downside is that the screen comes out slightly from the slot but nothing really bad.
The thickness I put slightly too big or-1.4 mm I'll Demount next week to put a finer and I'll try to take pictures in passing.
Note however that the loss of waranty is innevitable.
Sorry for my bad english ;-)
I think it's a hardware issue and even a build quality issue.
If i hold my folio at the side of the buttons, i get the flashing buttons problem (even the foliobuttons app will not help), if i hold it at the other side, i've got no problems at all.
Do you have an animated background? Because I saw that some people had this issue with an animated background...
Hi Mshr73, nice first post indeed
Could you post some pictures of what you did?
Mshr73 said:
After two weeks of testing and a complete breakdown of my folio100, I finally find the problem or just crazy buttons and freezing of the screen.
I drag a thickness in the screen in the bottom right corner of the screen to isolate the audio connector and it works better than a miracle again.
The only downside is that the screen comes out slightly from the slot but nothing really bad.
The thickness I put slightly too big or-1.4 mm I'll Demount next week to put a finer and I'll try to take pictures in passing.
Note however that the loss of waranty is innevitable.
Sorry for my bad english ;-)
Click to expand...
Click to collapse
seems to get better...
I really don’t want to be too quick on this, but Dexter’s 1.4 seems to bring relief to this issue - for 2 days I have been running this mod the menu button stopped flashing!!
Any similar impressions on this?
vietnamibalzsam said:
I really don’t want to be too quick on this, but Dexter’s 1.4 seems to bring relief to this issue - for 2 days I have been running this mod the menu button stopped flashing!!
Any similar impressions on this?
Click to expand...
Click to collapse
No way pal, I guess I'm in the opposite situation. It still happens to me, and sometimes I think it even got worse... well, I can always look at crazy keys as a "special feature" that no other tablet will have!!!
I just tested without thickness under the screen, with foliomod 1.4 and after a few hours I again the problem of crazy buttons.
Mshr73 said:
After two weeks of testing and a complete breakdown of my folio100, I finally find the problem or just crazy buttons and freezing of the screen.
I drag a thickness in the screen in the bottom right corner of the screen to isolate the audio connector and it works better than a miracle again.
The only downside is that the screen comes out slightly from the slot but nothing really bad.
The thickness I put slightly too big or-1.4 mm I'll Demount next week to put a finer and I'll try to take pictures in passing.
Note however that the loss of waranty is innevitable.
Sorry for my bad english ;-)
Click to expand...
Click to collapse
Well, I just finished dismantling e reassembling my Folio. Following your hint, I cut a piece of paper and put it between the audio connector and the back of the screen (yes, it was metal vs metal). I'll see whether it's gonna work or not. Crossing fingers for now.
Not that I'm so confident in leaving a piece of paper stuck right where the DC input is .
BTW, did you try with a smaller thickness? Even if this is the problem, I'm wondering whether a piece of paper would be enough or not.
thyself can someone. post pictures of before and after details?
we will be much appreciated
i didn't have the crazy buttons issue this far in 2 weeks, just my home butten needs to be pressed harder. I'm pretty sure it's hardware related, i read often that users experience it when changing from an warm room to a colder one, or in regions where its verry humid(some circuit closes maybe...). so Mshr73 is on the right way as far as i can tell.
Dexter's 1.4
^Sbk79^ said:
No way pal, I guess I'm in the opposite situation. It still happens to me, and sometimes I think it even got worse... well, I can always look at crazy keys as a "special feature" that no other tablet will have!!!
Click to expand...
Click to collapse
Really sorry mate, I hope it will solved this for others too...
Anyhow, it is so disturbing, that I was already considering to send the tablet back to Toshiba...
I'll try to do this weekend if I do not have too many customers. I post the result Monday.
Mshr73 said:
I'll try to do this weekend if I do not have too many customers. I post the result Monday.
Click to expand...
Click to collapse
I'm looking forward to your pictures, too... because my trial simply didn't work.
I tried with both a single piece of paper and then with 2 pieces wrapped in tape. I put these spacers between the back of the display and DC/audio connector.
In both cases, the crazy keys phenomenon started to happen after 15-20 minutes of usage.
In most cases, it starts to show when I unlock the device. As soon as I unlock it, home and menu buttons light up with no apparent reason and go crazy for 10-30 seconds.
Then, I even tried to loosen just a little the screws (I read, somewhere in the forum, of a guy who said that he solved his crazy keys and screen lag problems this way). I mean, all screws are now locked but not too tight. Well, I have to say that I don't have any screen lag anymore (I even removed the piece of paper, from the battery area, which used to solve the issue before) but crazy keys still happen. I'm going slightly mad
^Sbk79^ said:
I'm looking forward to your pictures, too... because my trial simply didn't work.
I tried with both a single piece of paper and then with 2 pieces wrapped in tape. I put these spacers between the back of the display and DC/audio connector.
In both cases, the crazy keys phenomenon started to happen after 15-20 minutes of usage.
In most cases, it starts to show when I unlock the device. As soon as I unlock it, home and menu buttons light up with no apparent reason and go crazy for 10-30 seconds.
Then, I even tried to loosen just a little the screws (I read, somewhere in the forum, of a guy who said that he solved his crazy keys and screen lag problems this way). I mean, all screws are now locked but not too tight. Well, I have to say that I don't have any screen lag anymore (I even removed the piece of paper, from the battery area, which used to solve the issue before) but crazy keys still happen. I'm going slightly mad
Click to expand...
Click to collapse
Well ... with a piece of paper the problem Come back.
I handed a piece of cardboard and the problem disappears.
I think that to raise the screen to solve them but I'm still not 100% sure.

broken power button?

So I've been playing with my phone for the last couple of days and recently I've been getting random reboots. I thought it was the ROM so I rolled back to a ROM I wasn't getting the issue and experienced the same. I did switch from CWM to TWRP and started getting the problem right around the same time. What happens is the phone goes dark like it's going to reboot, it does it's vibrate to say it's awake and repeats the vibrate roughly once a second until I push the power button a few times or until I pull the battery. I've been able to replicate this by holding the power button down.
Has anyone experienced this issue?
so is your power button broken?
rangercaptain said:
so is your power button broken?
Click to expand...
Click to collapse
it still functions but it feels touchy. it's very easy to activate it. I'm wondering if the hardware switch is loose and out of place. I'm still debating on tearing it down or calling Samsung and getting it replaced, but I'm not sure if I really want a referb or some tech playing with my phone.
A referb word be preferable to a broken power button.
Sent from my SAMSUNG-SGH-I717 using Tapatalk 2
kinghorsey said:
A referb word be preferable to a broken power button.
Sent from my SAMSUNG-SGH-I717 using Tapatalk 2
Click to expand...
Click to collapse
True, but I generally rebuild my devices myself so I don't know. Does anyone have experience with Samsung warranty return and wait times?
Theoriginalgiga said:
True, but I generally rebuild my devices myself so I don't know. Does anyone have experience with Samsung warranty return and wait times?
Click to expand...
Click to collapse
They just told me not 2 hours ago(Samsung rep) that it would take 6 weeks to get me a replacement s pen...maybe a phone is faster?
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
UnHived Mind said:
They just told me not 2 hours ago(Samsung rep) that it would take 6 weeks to get me a replacement s pen...maybe a phone is faster?
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Click to expand...
Click to collapse
haha I doubt it, I'll call them tomorrow to find out and if it's going to be too long I'll just tear it down and take a look at it. I have been meaning to look at the possibilities of adding an inductive charger to the phone, maybe this is the opportunity.
I'm having exact same problem. power buttong gets stuck if I press it. phone reboots and just vibrates after reboot without going to recovery or samsung logo. I have stopped using power button and enabled wakeup screen on volume button (SlimROM). Also added "Power" to power widgets in notification drawer settings. I try to avoid pressing power as much as possible.
i'm thinking of calling Samsung support or open phone myself to check it out. let me know if you got it fixed by Samsung. how long did it take to get the phone back? did you restore phone to stock rom before sending it? was it covered under warrenty?
Theoriginalgiga said:
So I've been playing with my phone for the last couple of days and recently I've been getting random reboots. I thought it was the ROM so I rolled back to a ROM I wasn't getting the issue and experienced the same. I did switch from CWM to TWRP and started getting the problem right around the same time. What happens is the phone goes dark like it's going to reboot, it does it's vibrate to say it's awake and repeats the vibrate roughly once a second until I push the power button a few times or until I pull the battery. I've been able to replicate this by holding the power button down.
Has anyone experienced this issue?
Click to expand...
Click to collapse
I have an issue similar to this, im thinking my issue is loose connections. what mine does is turn on for a bit and then restart. I've been able to resolve mine by flashing this rom.
http://forum.xda-developers.com/showthread.php?t=2261598
via odin.
I would try taking your phone apart and cleaning the power button with a q-tip and a LITTLE alcohol. if that fails i'd try to flash the rom. Good Luck
attends nimeno
did flashing the rom every fix it op? or did you just go ahead and replace the power button? if the rom did fix it, can someone repost the link? the link is broken.
Again i would try cleaning the power button off first.
to do so:
there should be 9 small phillips screws around the battery -remove those
then the metallic looking rim around the phone has clips that clip the back portion to the rest of the phone. use a finger nail and seperate the grey from the white around the phone, unlatching the clips. remove the back cover and locate the power button(on the left when looking at it from the back. dap the q-tip in a tiny bit of alcohol barely moistening the cotton. apply the q-tip to the button getting a small amount on it and press the button until it clicks smoothly. on the cover you took off you can remove the button it has a little rubber angle on each end holding it in. clean around that also. reassemble and test.
dweeezy said:
I have an issue similar to this, im thinking my issue is loose connections. what mine does is turn on for a bit and then restart. I've been able to resolve mine by flashing this rom.
http://forum.xda-developers.com/showthread.php?t=2261598
via odin.
I would try taking your phone apart and cleaning the power button with a q-tip and a LITTLE alcohol. if that fails i'd try to flash the rom. Good Luck
Click to expand...
Click to collapse
terryxviet said:
did flashing the rom every fix it op? or did you just go ahead and replace the power button? if the rom did fix it, can someone repost the link? the link is broken.
Click to expand...
Click to collapse
Personally I wouldn't ever Odin with this issue, a reboot while flashing a new bootloader potentially boom. My issue was persistent through all roms and even in recovery which lead me to believe it was hardware. What I did to solve the issue was I pulled the case off, battery out and just played with the button for an hour or so. Felt how it clicked and if it was clicking funny. After that it worked fine. By playing with it I don't mean mashing on it, I mean gently and normal clicking, feeling where it caught and didn't. What it felt like to me was some lint under the button which eventually worked it's way out. Hope this helps
Sent from my Transformer Prime TF201 using xda app-developers app
I had this issue of my power button sticking today. I took the phone apart and used some rubbing alcohol on a q-tip to get some on the button and pressed it repeatedly. I did that a few times and used some canned air to dry it out a few times. Put it all back together and button is working like new again.
Theoriginalgiga said:
Personally I wouldn't ever Odin with this issue, a reboot while flashing a new bootloader potentially boom.
Click to expand...
Click to collapse
If its not staying on at all then i agree with you. But if the problem is off and on and you've already tried cleaning the button thats really one of your last resorts. if the phone reboots during a flash you will get a firmware download error and you will have to reflash. may take a few tries but if the phone eventually stays on it'll be fine.
rquiett said:
I had this issue of my power button sticking today. I took the phone apart and used some rubbing alcohol on a q-tip to get some on the button and pressed it repeatedly. I did that a few times and used some canned air to dry it out a few times. Put it all back together and button is working like new again.
Click to expand...
Click to collapse
fantastic to hear!
dweeezy said:
If its not staying on at all then i agree with you. But if the problem is off and on and you've already tried cleaning the button thats really one of your last resorts. if the phone reboots during a flash you will get a firmware download error and you will have to reflash. may take a few tries but if the phone eventually stays on it'll be fine.
Click to expand...
Click to collapse
As I agree with you. Glad we're on the same page with a power issue like that, I'd check via the recovery image to see if it happened there and continue troubleshooting.
Sent from my Transformer Prime TF201 using xda app-developers app
So I've confirmed it is the power switch. Any way to replace it?
dweezy you must have super tough fingernails. I recommend two guitar picks, working them as a pair -- one pixk to separate the bezel from the body, the other to hold the place as you move around the bezel.
Lost
Phone is stuck in a boot loop and this is what I know so far. Phone is on stock ROM, power button is working fine, I can get to recovery and OS and download mode, and while phone was charging I took the battery out and the phone keeps vibrating. I now know it's a hardware problem for me (I think), but I can not pin point where. Any advise would be helpful cause I really love my note and this is just breaking my heart. :crying:
teddy_1da said:
Phone is stuck in a boot loop and this is what I know so far. Phone is on stock ROM, power button is working fine, I can get to recovery and OS and download mode, and while phone was charging I took the battery out and the phone keeps vibrating. I now know it's a hardware problem for me (I think), but I can not pin point where. Any advise would be helpful cause I really love my note and this is just breaking my heart. :crying:
Click to expand...
Click to collapse
When you get into recovery does the phone stay on? If so how long 10 mins? Hours? If it stays on I would assume its software.
Phone stays on forever in those modes, I'm gonna flash a different ROM to see what happens .... so I'm back to say it's a hardware problem. Same exact thing happens with liquid JB, paranadroid, and CM 10...did a clean wipe before installing each one too. Friend pointed me to some sites talking about a battery failure causing phones to do that so I'm gonna order a new one and see what happens...if this fails I have to get a new phone...and continue to work on my baby.

[Solved] I think I killed it

Hey guys. I was using my phone to check email, browse facebook, normal stuff. When all of the sudden it emitted a high-pitch squeal and shut off. That was an hour ago. I've been unable to get it to come back on. If i pull the battery and reinsert, it'll show the Samsung logo before beginning and endless series of vibration pulses. It won't stop unless I pull the battery. I've tried getting into recovery, no luck. I tried putting it into Odin mode, but as soon as the Odin screen loaded, the phone went black and back into the vibration pulsing. I've tried pulling the SIM, memory card, new batteries, anything I can think of. I've got plenty of backups on my SD card, so wiping it isn't an issue if i could just get to a recovery screen.
Any ideas what the hell this is??
Bad battery.
Stuck power button.
Your power button may be stuck. Try flicking it with your finger.
Well, i tried booting it with only the wall power connected, no battery, but nothing. I tried flicking the power button to loosen it, but no joy there either. It feels like the power button is releasing itself like it should, doesn't feel stuck. I could possible spray a tiny bit of switch cleaner in there to loosen things up.
EDIT: What is a stuck power supply supposed to feel like? Mine feels like it's making a full movement. There's a solid click on a full press and a smaller click when releasing it. Feels like it's working. I'm tempted to just crack her open and get a better look. I'm on a replacement Blackberry while my note is down and this dumbphone is KILLING me! Gotta get the note back up and running.
The power button looks like this on the inside.
It's a tiny micro switch. Sometimes the tiny mechanics get stuck on the inside. When it's stuck, it constantly reboots. It's a very common problem and sometimes an easy fix.
Parts of your problem resemble a bad battery like capt mentioned. As well as the stuck power button symptom. You can take the phone apart and try to clean it. It's not hard to do. Spraying in the external button probably won't reach the actual button though. Sorry if our first two ideas aren't fixing your issue. Maybe someone else will come along with another idea.
I'm pretty sure we are correct.
It's the power button mine does that when it sticks high pitched noise then the black screen with vibrations
Sent from my SAMSUNG-SGH-I717 using xda premium
mv1luv said:
It's the power button mine does that when it sticks high pitched noise then the black screen with vibrations
Sent from my SAMSUNG-SGH-I717 using xda premium
Click to expand...
Click to collapse
This is EXACTLY what I experienced, noise and all. Sounds like I need to take my phone apart and examine that switch. Is it as easy as blowing compressed air (PC cleaner type) through it to clear it?
EDIT: Well, I gotta give it to you guys. You were spot on. I took the phone apart and really did nothing more than tap on the switch directly and it booted right up. I hit it with some canned air just to be safe and clean it all out. It's currently charging back up and looking fantastic at this point! Thank you guys so much. You've saved me from having to go any longer with a Blackberry!!
Glad to hear you're up and running again! This pesky power button issue has plagued many.
Please edit the subject line to say [solved] so others searching may be saved.
SilverStone641 said:
This is EXACTLY what I experienced, noise and all. Sounds like I need to take my phone apart and examine that switch. Is it as easy as blowing compressed air (PC cleaner type) through it to clear it?
EDIT: Well, I gotta give it to you guys. You were spot on. I took the phone apart and really did nothing more than tap on the switch directly and it booted right up. I hit it with some canned air just to be safe and clean it all out. It's currently charging back up and looking fantastic at this point! Thank you guys so much. You've saved me from having to go any longer with a Blackberry!!
Click to expand...
Click to collapse
Thank you for posting your resolution. Many don't and it kind of leaves us hanging as to whether or not suggestions helped.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
captemo said:
Thank you for posting your resolution. Many don't and it kind of leaves us hanging as to whether or not suggestions helped.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Click to expand...
Click to collapse
Thanks!! In the spirit of helping others plagued by this issue, it's interesting to note that my power button always "clicked" like it was making good contact, but never worked. As soon as I cleaned the switch, it started working, the click stayed the same either way. Moral is, even though the power button feels like it's working, CHECK IT!! :highfive:

[Q] Screen froze, cannot shut down

Dear Sirs,
my Omate Truesmart's screen froze completely at the settings screen after I tried to reenable bluetooth. Now the screen is on and the buttons are not working (tried holding them for a minute) so I cannot power it off in any meaningful way. I have no tiny screwdrivers here (on vacations).
Does anyone know any way to shut down this device without dismantling it?
Or do I have to wait for the battery to discharge completely?
I have seen such absurd situation on no other device yet so far..
All best.
So how did it go? Battery empty and now up and running again?
I had the same with my device. I did had the tiny screwdriver at hand and removed the battery. Now the back lid won't fully close...
apetit said:
So how did it go? Battery empty and now up and running again?
I had the same with my device. I did had the tiny screwdriver at hand and removed the battery. Now the back lid won't fully close...
Click to expand...
Click to collapse
Exactly, the ghost left the watch after a few hours, and now it works again.
I thought to put it on the sun to overheat the CPU and trigger the reboot, but then - it might never wake up
So, the bottom line is - always carry watchmaker's tools in your pocket!
Cheers
Mirko321 said:
Exactly, the ghost left the watch after a few hours, and now it works again.
I thought to put it on the sun to overheat the CPU and trigger the reboot, but then - it might never wake up
So, the bottom line is - always carry watchmaker's tools in your pocket!
Cheers
Click to expand...
Click to collapse
Nah, leave the lid as long as you can. Like I said, mine won't fully close now. One drop of water in the wrong place and it's is bye bye TS.

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