Develop Bugs

[Q] Power Button Problem -- Alternative way to turn on the Galaxy Nexus

Hi,
I'm having the (common?) problem, that the power button doesn't work any more. You can press it as long or often as you want, it doesn't do anything.
So -- big mistake -- I took of the battery and tried to restart. But the power button seems to be broken (hardware), so I now cant even turn on the phone to make it connect to e.g. adb...
Is there any way, to get the phone (without using the power button :/) able to talk to the adb / fastboot interface? (or better, boot it completely)
Need to get some data off it before sending it in for replacement..
thanks !

take the battery out and plug into usb (connected to computer). put the battery back in and when you see the battery charging on the screen remove the battery again. On mine the battery image starts flickering. at that point i put the battery back in and it rebooted.
This has worked for me a few times. Once rebooted you will be able to see your device using adb and then fastboot.
i got the idea from this post but found the timing i used worked better than his random attempts while holding the x key on the nexus one.
http://forum.xda-developers.com/showthread.php?t=1524858
good luck

I've been searching the web for days looking for a way to turn on my Galaxy Nexus without using its broken power button, and your timing trick got it working. Thanks!

Thank you, i searched for a whole night during my night shift for this and it worked, lets hope i won't turn it off again :fingers-crossed:

Rooted?
If you have a rooted phone you can use AOKP ROM or any other roms that has volume wake in its settings. If your kernel supports it you can do what I did and use PGM Nexus from the market, basically what it does is let you lock and unlock your screen by swiping from left to right and right to left for each action (it keeps your touch controls on even when the screen is off and it doesn't use that much battery ) Hope this helps.

Rookie_One said:
Thank you, i searched for a whole night during my night shift for this and it worked, lets hope i won't turn it off again :fingers-crossed:
Click to expand...
Click to collapse
Is there some trick here guys? My phone has a busted power button and I need to get some data off it before repairing. I've tried this timing method but it doesn't seem to do anything. A charging icon shows up, I pull the battery and replace it, and then the full icon shows up and eventually disappears.

if you go to the phones main settings, security, lockscreen, then press none, youll be able to wake the device with the volume buttons. its a built in feature, no app needed.

cohrs said:
take the battery out and plug into usb (connected to computer). put the battery back in and when you see the battery charging on the screen remove the battery again. On mine the battery image starts flickering. at that point i put the battery back in and it rebooted.
This has worked for me a few times. Once rebooted you will be able to see your device using adb and then fastboot.
i got the idea from this post but found the timing i used worked better than his random attempts while holding the x key on the nexus one.
http://forum.xda-developers.com/showthread.php?t=1524858
good luck
Click to expand...
Click to collapse
I love you mate. Now I can use my phone again.

Oh thank God it WORKS! thanks to you man, your post is really helpful. thanks to everyone who have shared this idea!
Let me explain in detail how it works on mine:
1. battery pulled (if possible, the battery shoulldn't be too full to allow the charging animations to appear)
2. connect phone to usb that is connected on pc (without the battery inserted) n wait like 1 or 2 seconds before inserting the battery
3. insert the battery now
4. wait for the battery lightning logo to appear
5. once appeared, wait for the battery lightning logo to disappear (it took me almost 10 seconds.. might vary with yours)
6. once the battery lightning logo disappear, wait for the charging animation to appear (almost instant)
7. when the charging animation appears, kindly pull the battery now.. hehe.. it doesn't matter if you wanna pull it immediately after the charging animations appear or not as long as the animation is still playing..
8. this is the point where it should work or not:
A: sometimes the animation will continue to loop 3 times n nothing happen. Repeat process from step 1.
B: there's a split second static lines on the screen (static as in the iPhone 5 keyboard static) and then the battery animation got stuck. just wait. n then it turns off. n then it vibrates. n then, it boots! =D
P/S: This is NOT MY GNex. My GNex is fine right here with me. The GNex in description here belongs to my friends' aunt. she bought the phone based on my recommendation. the phone is only 4 months old. Mine is 7 months old. luckily the phone is still in warranty so she'd be able to get it fixed soon for free. I'm gonna give the phone back to her so that she could backup every single pictures n videos coz she never did any sort of backup since the phone was bought.. *gasp*
IMPORTANT!
since i have my own GNex, I emptied my battery (i left it only around 10% or so) n put it in her GNex so that the charging animations will appear when i try to revive it using the method above. coz before this, her GNex's battery was full n once the battery lightning logo disappear, only the battery full logo appears afterwards, meaning no animations is shown. n i don't know whether this affects anything at all. just thought i'd mention it. =)
actually I didn't even know the power button is problematic. I thought it was bricked or something. i've even used the omapflash thingy.. lol.. i even considered the odin method n stuff.. luckily i came across this thread..
thanks again everyone.
=)

please!!
cohrs said:
take the battery out and plug into usb (connected to computer). put the battery back in and when you see the battery charging on the screen remove the battery again. On mine the battery image starts flickering. at that point i put the battery back in and it rebooted.
This has worked for me a few times. Once rebooted you will be able to see your device using adb and then fastboot.
i got the idea from this post but found the timing i used worked better than his random attempts while holding the x key on the nexus one.
http://forum.xda-developers.com/showthread.php?t=1524858
good luck
Click to expand...
Click to collapse
i tried following this tutorial anyway and it did not work my phone does not boot at all it is Samsung Galaxy Ace Plus GT-S7500 the battery tested on other phones and it worked and before my phone goes to this state of no booting before it happens 8 hours ago i restarted my phone the Samsung name and site appeared then the screen started to give me lots of colorful lines then it got fully white i removed the bat for 3 minuets then i put it back then i pressed power button it should vibrate but it did not any way Samsung logo and site appeared then nothing i waited for 15 min and nothing i tried to restart my phone but the same result so i shut it off then i went to sleep then i woke up to run it don`t run at all even my PC +Charger does not detect my neither my phone does not detect them at all what shall i do

Works
:good:
cohrs said:
take the battery out and plug into usb (connected to computer). put the battery back in and when you see the battery charging on the screen remove the battery again. On mine the battery image starts flickering. at that point i put the battery back in and it rebooted.
This has worked for me a few times. Once rebooted you will be able to see your device using adb and then fastboot.
i got the idea from this post but found the timing i used worked better than his random attempts while holding the x key on the nexus one.
http://forum.xda-developers.com/showthread.php?t=1524858
good luck
Click to expand...
Click to collapse

I use this method to my i9001 and works like charm!!! I believed that something was wrong with my i9001 but nothing was wrong!!!!!
Sent from my Galaxy Nexus using xda premium

Just replace the power button. I did on mine.

ethanmars said:
Oh thank God it WORKS! thanks to you man, your post is really helpful. thanks to everyone who have shared this idea!
Let me explain in detail how it works on mine...
=)
Click to expand...
Click to collapse
Thank you!!!!
The timing was the issue. Tried everything before finding your post. You saved me!
Mixu

cohrs said:
take the battery out and plug into usb (connected to computer). put the battery back in and when you see the battery charging on the screen remove the battery again. On mine the battery image starts flickering. at that point i put the battery back in and it rebooted.
This has worked for me a few times. Once rebooted you will be able to see your device using adb and then fastboot.
i got the idea from this post but found the timing i used worked better than his random attempts while holding the x key on the nexus one.
http://forum.xda-developers.com/showthread.php?t=1524858
good luck
Click to expand...
Click to collapse
Thanks a million, man. You totally saved my bacon with this trick. :good:
My Galaxy Nexus is up and running again after about 5 minutes of pulling and inserting the battery I finally got it booted up.
My power button's been broken for a few weeks and I installed an app to turn my screen on using the VOL button but I was out all day today and made the mistake of letting my battery completely die and of course it powered down - OOPS.
Guess I'd better get that power button fixed.

heccubusxda said:
Thanks a million, man. You totally saved my bacon with this trick. :good:
My Galaxy Nexus is up and running again after about 5 minutes of pulling and inserting the battery I finally got it booted up.
My power button's been broken for a few weeks and I installed an app to turn my screen on using the VOL button but I was out all day today and made the mistake of letting my battery completely die and of course it powered down - OOPS.
Guess I'd better get that power button fixed.
Click to expand...
Click to collapse
which app was it ? was looking for one rly long time.

Yuvalyo said:
which app was it ? was looking for one rly long time.
Click to expand...
Click to collapse
There's a number of them on Play Store but I went with this one:
Button Savior
https://play.google.com/store/apps/details?id=com.smart.swkey&hl=en

ethanmars said:
Oh thank God it WORKS! thanks to you man, your post is really helpful. thanks to everyone who have shared this idea!
Let me explain in detail how it works on mine:
1. battery pulled (if possible, the battery shoulldn't be too full to allow the charging animations to appear)
2. connect phone to usb that is connected on pc (without the battery inserted) n wait like 1 or 2 seconds before inserting the battery
3. insert the battery now
4. wait for the battery lightning logo to appear
5. once appeared, wait for the battery lightning logo to disappear (it took me almost 10 seconds.. might vary with yours)
6. once the battery lightning logo disappear, wait for the charging animation to appear (almost instant)
7. when the charging animation appears, kindly pull the battery now.. hehe.. it doesn't matter if you wanna pull it immediately after the charging animations appear or not as long as the animation is still playing..
8. this is the point where it should work or not:
A: sometimes the animation will continue to loop 3 times n nothing happen. Repeat process from step 1.
B: there's a split second static lines on the screen (static as in the iPhone 5 keyboard static) and then the battery animation got stuck. just wait. n then it turns off. n then it vibrates. n then, it boots! =D
Click to expand...
Click to collapse
I followed the same basic procedure (thanks!), but wanted to add a couple notes.
1) I wasn't having much luck after step 8 until I actually put the battery back in as suggested by the second post in the thread -- that seems to trigger the boot process more consistently.
2) If the process is not working, try a different USB cable. I tried a number of times with one cable to no avail, then finally got desperate enough to try another cable, and it worked the very first time.
3) Once the phone is actually booted, here are a couple other apps that can help with the lack of functioning power button:
https://play.google.com/store/apps/details?id=net.ponury.pgm2free --- For those who are rooted, you can use this (or the paid version with more features) to slide your finger across the turned-off screen to wake the phone. It can be a little finicky in my experience, sometimes pressing the volume button after swiping seems to do the trick:
https://play.google.com/store/apps/details?id=com.katecca.screenofflock -- Lets you turn off the screen via a shortcut; I have a shortcut on my home screen and in my notifications.

rjax said:
https://play.google.com/store/apps/details?id=net.ponury.pgm2free --- For those who are rooted, you can use this (or the paid version with more features) to slide your finger across the turned-off screen to wake the phone. It can be a little finicky in my experience, sometimes pressing the volume button after swiping seems to do the trick:
https://play.google.com/store/apps/details?id=com.katecca.screenofflock -- Lets you turn off the screen via a shortcut; I have a shortcut on my home screen and in my notifications.
Click to expand...
Click to collapse
+1 try PGM......its rockz big time!
be sure to have a PGM compatible kernel though

Recovery mode from power button hold??
PLEASE HELP!!! So I happened to push the recovery mode on my galaxy nexus by holding the power button and selecting reboot then recovery....... I think that's why my 2,500 song and many pictures are gone??. D: >_<.. if that is the case is there anyway for me to get my music back without have previously saving it on my computer???????????????
---------- Post added at 12:48 PM ---------- Previous post was at 12:21 PM ----------
PLEASE HELP!!! I pushed recovery option the power button reboot option from holding the power button down. and I think that's why I lost all my music and pictures.:'(. can someone please tell me how to get it back or do I have no hope.. I just don't want to give up.......

Sudden Death Syndrome [Fix?]

Edit: Read second post for possible fix.
"Ugh, look at this idiot/noob posting another SDS thread! SPAMZ! " Now hold on there Mr./Mrs. forum person! Give me a chance, if you will, please! Let's start off with phone specs and all of that jazz.
Phone Specs (hopefully all-inclusive, sorry for unknown info)
Phone: Samsung Galaxy S III SPH-L710
Carrier: Sprint
Mobo: It's 16GB, so probably the one that's known to experience the SDS
ROM: FreeGS3 v3.0.0
Kernel: Ktoonsez (couldn't tell you the version, whatever the ROM came with when selecting "ktoonsezz" as my kernel during installation)
If you need more info, ask for it and I will try to supply it.
The Issue
So, I was sitting here using my phone as a wireless hotspot for my laptop, when I went to check on my phone because a webpage was not loading, when I turned on the screen it showed what I believe was the "critically low battery" pop-up, then the phone turned off in less than a second. First I tried to power the phone on: nothing happened. So, naturally, I grabbed my charger and plugged in my phone. Hopefully others know the screen that pops up when you plug in your GS3 while it is off, that little battery with the spinning circle in it? Well that pops up incredibly briefly, then my screen goes blank and the phone is completely unresponsive. I have tried battery pulls, multiple batteries, getting into download mode, anything and everything (as far as I know).
What to Do?
Do I have the SDS? :crying: Is the only option to take my phone in to a Samsung center and get them to repair it? (I think Samsung is building a GIANT building 5 minutes from my house.) Is there some simple thing I can do I am unaware of?
Thanks in advance //Slit

Miraculous Miracle! (9 steps)
Well I'll be darned (moments after post, of course)! I have a solution that may work for anyone with an identical issue:
1. Let phone sit plugged in to wall for some time (hour or so, 30 minutes is probably fine)
2. Keep phone plugged into wall
3. Have any case you may have and the back removed
4. Pull the battery
5. Have fingers ready on the download mode buttons
6. As soon as the battery is slipped in, press and hold download mode buttons
7. Miracle! (download mode starts)
8. Press down and reboot phone
9. Return to normal, clam, non-panicking state
Is Your Issue Semi-Identical to Mine?
If your phone will show that battery with spinning circle in it or light up the LED very briefly when you plug your phone into the wall, then this fix should work for you if done properly.
Hope this helps someone! //Slit

SlitWeaver said:
Well I'll be darned (moments after post, of course)! I have a solution that may work for anyone with an identical issue:
1. Let phone sit plugged in to wall for some time (hour or so, 30 minutes is probably fine)
2. Keep phone plugged into wall
3. Have any case you may have and the back removed
4. Pull the battery
5. Have fingers ready on the download mode buttons
6. As soon as the battery is slipped in, press and hold download mode buttons
7. Miracle! (download mode starts)
8. Press down and reboot phone
9. Return to normal, clam, non-panicking state
Is Your Issue Semi-Identical to Mine?
If your phone will show that battery with spinning circle in it or light up the LED very briefly when you plug your phone into the wall, then this fix should work for you if done properly.
Hope this helps someone! //Slit
Click to expand...
Click to collapse
I have a very similar situation. Was playing around on the phone, and then it just froze, went black and I haven't been able to turn it on since. When plugged in there is no light, unless I don't use a battery then I get a red light for a short while (short while at least on a PC, I haven't tried for an extended period of time when plugged into the wall). PC recognizes it kind of. It recognizes that something is connected, but that is about it. I'm going to give this method a shot, hopefully it works. Just in case though, any other ideas?

[Q] HOX wont start up after new battery replacement.

Hi.
I had a HOX which I wanted my daughter to use, which was running android Revolution custom ROM, but the battery was on the way out. So I purchased a new battery, dismantled the phone with no issues, changed out the battery and put it back together. I then gave it a full charge, till the charge light was green. But now the phone will not switch on at all. I have tried the usual button tricks, power + Vol Up & Down, Power + Vol Down to try and reset the battery status or boot it into recovery, but nothing works. I just get a Green double flashing light after about ten seconds, and this only goes on while you hold the power button down. The phone is recognised when you plug it onto the PC. I tried updating the drivers in the PC to see if this woudl help, as I read this as a suggestion as well, but nothing seems to be able to get it to start up again.
Took it apart again today, put the old battery back in, checked no cables had come out. All well but it still will not power up.
I am at a loss as to why this is the case. Spent the last week on and off online looking for a solution, but have found nothing that works.
I can't find anything about a double flashing green light when you try to power up the phone.
If anyone has any idea how to get it at least booting back into recovery that would be great!
TIA.

[Q] SM-T700 Froze, Powered off - Soft bricked?

Hey guys,
Appreciate it if you could spare me some advice on how to proceed.
So I was watching a twitch stream and all of the sudden tablet froze, and the audio froze as well causing a large super high pitch noise, I hard-reset the tablet but instead of resetting it just turned off, I started to browse the forums and found that a combination of (POWER + VOL UP & DOWN + HOME) would reset the tablet,now what this did for me is turn the tablet on but it was stuck in SD CARD Mode, back again to the forums, read that letting it discharge fully and then it will be able to be charged and turned on, that worked tablet was back doing some various tasks no video again and then boom freezes again same symptoms except this time I couldn't get it to go to SD CARD Mode its very finicky after trying at various times in the day I finally got it to work, same process except this time as soon as it turned on I went into recovery factory reset it to stock, worked a bit longer this time only installed chrome, and it froze again (don't think it was chrome) , rinse repeat and I flashed the latest firmware with ODIN worked fine, I've gotten to the home screen ran through the "factory new" set up and it turned off of me again.
I plugged it in let it charge, came up with battery icon 5% 10% ect, then I left it for a while, I came back and I cant even get it to show the battery percentage(tap power) let alone turn on.
I'm fairly sure that eventually I can get it turn back on but from there I don't know what to do.
TL;DR - Tablet Froze, Hard Reset, Froze again - Rinse Repeat, ODIN to latest STOCK firmware, tablet worked for 5 min before turning off again (plugged in), present situation
Any ideas as what to be causing the freezing and how I could remedy it?
Also sometimes when it froze it turned itself off without me hard resetting it.
Thanks its been driving me insane,
Please do not hesitate to ask me to clarify or provide more information so I can help you help me.

Maybe youve got the loose battery connector problem?

ashyx said:
Maybe youve got the loose battery connector problem?
Click to expand...
Click to collapse
What would you suggest I do, submit it to warranty ? Will they disregard the fact that knox has been tripped if its a hardware issue ?

sunb3ar said:
What would you suggest I do, submit it to warranty ? Will they disregard the fact that knox has been tripped if its a hardware issue ?
Click to expand...
Click to collapse
I had the loose battery connector problem, but the symptoms do not sound the same as mine. I could get mine to boot up, but the screen would flicker and a few white lines would appear before it would reboot itself. I actually started a ticket with Samsung and got the packaging label but, upon further reading, realized that I was pretty much SOL after tripping knox, and didn't want to risk the chance of getting charged for just sending it in. If it is indeed the loose battery connector, you should be able to remove the back cover yourself and fiddle with it. Ultimately, mine needed re-soldering, and I was able to find a local electronic repair shop to do it for me for cheap.
Good luck!

UPDATE: I've managed to get into SDCARD MODE yet again, except discharging seems to get out of it, but once I plug it back in it doesn't come up charging it just black screen, until I hold some buttons and arrive back at sdcard mode. Good times.
Trying various things to get it to boot..
EDIT: Appreciate the insight Squez, I want to exhaust all the other options before opening it myself, if Knox didn't void the warranty to some degree, opening it up should put the final nail in the coffin.
EDIT2: Good news, sort of, tablet isn't dead! after numerous attempts with charge SDCARD mode, discharge, It finally start to charge properly and I managed to get it to boot, worked for a few hours then I left it to charge, and went to sleep, woke up and wont turn on again, but I am in SDCARD Mode again but need wait for it to discharge from presumably 100% ....

[What do you mean Sd card mode? DOWNLOAD mode?
Also no need to let the battery drain.
Just press VOLUME DOWN(not volume up) and POWER together then hold until it restarts.
This is a hard reset and will ALWAYS work unless the device is hard bricked. It is the equivalent of a battery pull.
I continually see here and there incorrect information regarding key combinations, even in so called guides, this forum is even guilty!
Here is what works on the 10.5lte, as far as I'm aware its the same for all versions, indeed pretty much any Samsung device.
HARD RESET:
VOLUME DOWN - POWER.
Hold until the device restarts.
DOWNLOAD MODE:
HOME - VOLUME DOWN - POWER.
Hold until the device boots.
RECOVERY MODE:
HOME - VOLUME UP - POWER.
Hold until the device boots.

ashyx said:
[What do you mean Sd card mode? DOWNLOAD mode?
Also no need to let the battery drain.
Just press VOLUME DOWN(not volume up) and POWER together then hold until it restarts.
This is a hard reset and will ALWAYS work unless the device is hard bricked. It is the equivalent of a battery pull.
I continually see here and there incorrect information regarding key combinations, even in so called guides, this forum is even guilty!
Here is what works on the 10.5lte, as far as I'm aware its the same for all versions, indeed pretty much any Samsung device.
HARD RESET:
VOLUME DOWN - POWER.
Hold until the device restarts.
DOWNLOAD MODE:
HOME - VOLUME DOWN - POWER.
Hold until the device boots.
RECOVERY MODE:
HOME - VOLUME UP - POWER.
Hold until the device boots.
Click to expand...
Click to collapse
I should of posted a photo earlier but here is one I found on google of same screen: (check attachments)
Except UP KEY and DOWN KEY don't do anything, its just this screen, if you attempt to hard reset ect, it will just reload this screen, hence the discharge, then plug it back in and hope it begins to charge "battery icon appears". I have gotten it to boot like this a few times.

sunb3ar said:
I should of posted a photo earlier but here is one I found on google of same screen: (check attachments)
Except UP KEY and DOWN KEY don't do anything, its just this screen, if you attempt to hard reset ect, it will just reload this screen, hence the discharge, then plug it back in and hope it begins to charge "battery icon appears". I have gotten it to boot like this a few times.
Click to expand...
Click to collapse
Wtf
How did you get to that mode? Looks like its trying to flash from the sd card. Ive seen safe mode but not that.
see here: http://forum.gsmhosting.com/vbb/10127092-post62.html

ashyx said:
Wtf
How did you get to that mode? Looks like its trying to flash from the sd card. Ive seen safe mode but not that.
see here: #
Click to expand...
Click to collapse
Yeah its strange as.
I'll have a look at that, thanks.
EDIT: It just finished discharging and now I am on the battery screen.. Usually once it charges here I can get it to boot, what I'm curious is what on earth keeps causing it to freeze up, because in download mode and twrp (gone since i flashed stock via odin) it wouldn't freeze at all, only have issues with it once its booted or charging. I installed a logcat earlier hopefully that should shed some light on the situation,
EDIT2: Well another very interesting thing, the official Samsung charger wont charge it, only works if I plug it into pc or use a non-official charger, strange thing is nothing is wrong with the samsung charger or cable since I can charge my phone fully from it. These have to be some of the strangest symptoms.
EDIT3: Only works through USB port on PC for now, non official charger comes with red X on battery once booted. I assume you can work around this once rooted but that's for another time..
EDIT4: Charge through pc to around 2-3%, boot device, plug into official samsung wall charger and it begins to charge properly.
EDIT5: Hooray back to step one, trying get into SDCARD Mode, same thing happened left it overnight and it wont turn on or charge anymore.

ashyx said:
Wtf
How did you get to that mode? Looks like its trying to flash from the sd card. Ive seen safe mode but not that.
Click to expand...
Click to collapse
i am pretty sure the HOME - VOLUME DOWN - POWER. puts the 10.5 into the sdcard mode.
my tablet is doing very similar to sunb3ar findings.
have had it come back to me once from sdcardmode.. (let if go flat and starting charging then it would start via normal buttons)
it crashed not long after that. it got stuck in sdcard mode again, but this time none of the drain flat, put on charge has worked.. just blank..
fyi- we try to put it in RECOVERY MODE, but it does not work when in this crashed / sdcard mode state
i even disconnected the battery and then plugged back on charge.. nothing..
today i tested the battery volts, 2.8v , for a 3.8v i thought that was ok. i attached my RC lipo multi charger set to 1amp 3.7volt charge, direct to the - + on the battery- got it up to 3.5v, plugged back in, put the charger on- the sdcard mode (most life it has shown in a week).
still not coming up with 'battery' display to say its 'turn-off and being charged'. just the sdcardmode might disappear and return..
i am currently adding mode charge to battery... will try to HARD RESET next.. since i have not tried that combo yet..
HARD RESET:
VOLUME DOWN - POWER.
Hold until the device restarts.
edit: i took it off 'direct' charge, battery at 3.7volts.. then plugged in normal charger, i got a 'battery symbol' but it had the lightening bolt, not a %.. so i unplugged and reconnected to my direct charge to give the battery more volts. i am surprised that the unit seems to think a battery with 3.8volt as it specs seems to not be like with volts not much lower than 3.8.. could be time for a new battery if we can get this thing to restart

Note 4 shuts off and won't reboot!! Help please

My bf calls me from work phone and says he was in middle of sending me a message when his phone just shut off. He tried to power back on but nodda. I walked him through a hard reset but its still not coming on. Little LED light in corner just strobes blue. Everything on phone is factory so no rooted or anything... Please help me

Check the battery for a charge by plugging in the charger while it's powered off.
Hard reset? Was that a factory reset in recovery? Before the slow blinking blue light, did the boot splash animate and also animate a yellow spark screen?
I ask because that would be normal before display shows the apps are optimizing and starting after dalvik-cache wipe. Give it time; 10 to 30 minutes. If it's not starting with splash screen, pull the battery for a bit while discharging with the power button for at least 30 seconds. Longer if it still won't display the boot splash.
If it's still not booting, try download mode and connect KIES to recover it. It's been awhile but there's an emergency firmware recovery option but here's an older guide that might still apply:
http://forum.xda-developers.com/showpost.php?p=40966346&postcount=1
Sent from my SM-N920P using Tapatalk

pull battery for 30- 45 seconds. after getting it back together press,- volume up/home key/power (same time of course) to hopefully get the android recovery screen. if u cant get anything to show- KIES will not help. take the phone to a corp sprint store and have a nice friendly convo with a tech rep. after u have buttered him up ask about your note 4 and see if he will diagnose it without asking for the 75.00 fee worse case senario- pay the 75.00 up front and get an open box note 4 or possibly a note 5 if they are not avail. make sure to ahve your bill paid. cant be asking for a phone when u owe for 3 months.

It's related to the battery problems with Lollipop. Have him charge the phone while it's powered off and it should start charging up.

tragicallyhip said:
It's related to the battery problems with Lollipop. Have him charge the phone while it's powered off and it should start charging up.
Click to expand...
Click to collapse
I don't believe its the battery and do anything with firmware cause I have Google Chromebook so it doesn't have windows on it and every one I've seen to download requires either Mac or windows...

MaryJane8510 said:
I don't believe its the battery and do anything with firmware cause I have Google Chromebook so it doesn't have windows on it and every one I've seen to download requires either Mac or windows...
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There have been many batteries that failed after 12 months with a bad cell causing immediate shutdown. That type of shutdown or even an OTA update can potentially corrupt memory and fail to boot. Mine failed after 15 months; 2 shutdowns around the 20-30% capacity remaining was enough to compel me to stop risking memory corruption. But the battery didn't do that every charge cycle; very random but not since I stopped using that battery.
If you've factory reset in recovery and it still won't boot, the phone needs the firmware flashed. Take it to Sprint or a Best Buy Samsung Experience kiosk to get that done since you don't have a Windows or Linux machine. If the flash gets it going, I'd recommend getting a battery replacement but keep the phone charged above 40% until battery replaced.

Sound like a hardware failure or the battery is bad. I've had this happen on my other N4 that i just had replaced. To test for hardware failure do this exactly how i say:
1. Pull the battery then press and hold the power button for at least 1 minute and 30 seconds.
2. Release the power button and replace the battery but DO NOT press the power button for at least 10 minutes.
3. After letting the phone sit with the battery installed for at least 10 (without pressing ANY buttons), press and hold power, volume down and the home button until the phone boots to download mode.
4. If you successfully get download mode to launch then you should be able to press volume down to cancel and restart the phone normally. If this works to launch the download mode but fails to reboot normally then keep trying these steps and eventually u should be able to get it to boot.
However, if this works, it only confirms that there is hardware failure and odin will most likely fail when flashing the stock firmware. You will most likely need to have the phone replaced if the above steps work or if it does not work. But you can try to odin the same stock firmware that was last installed on the phone. If you try to flash a newer or older firmware than what is already installed on the phone, there's a good chance it will fail. this is where good memory comes into play. you will need to have a good idea of which software version is currently running on the phone and flash that version to successfully flash the stock rom tar using odin on your pc. Good luck