yashsingh1/xdaforums huggingface dataset:
[Galaxy Note 4 Q&A, Help & Troubleshooting] pcp20us:
rrrr, found that setting, but i think thats only for downloaded apps. anyway i ll give it a go.
[Galaxy Note 4 Q&A, Help & Troubleshooting] pcp20us:
Hi

Disabling app optimization did not work, phone still becomes unrepsonive after sleep. With this turned off it seem all the system apps are still optimized, bloody stupid that you cannot disable more than one at a time seing there are pages of apps to disable.

And could not find anything on the web except a paid app to disable doze. IS there anyway to disable doze thru root abd tasker etc?

Wake lock works but cannot get it to autostart and it does use more battery.

So still looking for a fix. seems android needs more control over this doze option
[Galaxy Note 4 Q&A, Help & Troubleshooting] hx4700 user:
Wakelock made my Note 4 worse

Following suggestions from the forum, I installed wakelock and set it to level 4. Instead of freezing 2 or 3 times aday, that jumped up to 10 or more. :mad: Each time I had to restart wakelock and reset it. :mad::mad: Even after uninstalling it, the phone now freezes or restarts more than 10 times a day. :mad::mad::mad: Usually it does that when I want to get something done. I have heard of similar issue on other Samsung phones, and it is putting me off getting a new Note 8 if they come out.
[Galaxy Note 4 Q&A, Help & Troubleshooting] DeathEvil:
wakelock completely cured m phone too. i somehow doubt so many people have faulty mmc after upgrading to marshmallow. Running nougat rom (emotion) and the phone feels like a new phone!

if you have those pesky issues with your note i strongly suggest trying wakelock as its the only thing that fied it for me (tried pit files, oding restocks, smartswitch etc). good luck everyone
[Galaxy Note 4 Q&A, Help & Troubleshooting] Phyo Nyi Nyi:
Maybe some errors were coz of hardware issue.

Try to send service center
[Galaxy Note 4 Q&A, Help & Troubleshooting] DjStep:
Solved it finally

I have 2 identical Verizon Galaxy Note 4 N910V phones and both experienced the exact same problem at the exact same time: frequent crashes, boot loop, would not fully boot unless plugged into charger. The problem only started happening with after one of Verizon's Marshmellow updates in Dec 2016

Tried everything in these forums to fix. Wakelock etc. Replacement batteries. But nothing worked.

Here’s what finally worked for me:

1. Reverted software from Marshmellow back to Lollipop 5.1.1

2. Replaced batteries.

Even though I had recently purchased Samsung replacement batteries for both devices less than 6 months ago something about the Marshmellow updates seems to have fried the Samsung batteries as well. But when I put aftermarket replacement Stalion batteries in the devices now work like new.

Note: I tried replacing the batteries with the Stalion after market batteries before reverting to 5.1.1 but that did not solve the issue. Only after reverting the OS to 5.1.1 first, THEN replacing the batteries was the crashing issue fully solved..

I have tested and verified that putting the old Samsung batteries back in after reverting to 5.1.1 caused the devices to crash again.

3. To prevent Verizon installing the OTA update to upgrade from Lollipop to Marshmellow again, used Package Disabler Pro app to disable the system app called: syncmlcsvc

Both phones are working flawlessly now under typical daily use.

Thank goodness. I was so frustrated, but now I am so pleased to have the phones working well again. They are like new.

I post this in the hope it will solve your issues too
[Galaxy Note 4 Q&A, Help & Troubleshooting] callumbr1:
To most of you with this issue.... i had exactly the same issues as you guys. Would even restart and bootloop at 90%, constant crashing, downloading an app from play store caused a bootloop, tried wakelock and nothing helped. I replaced the battery with a brand new official samsung one and it has been perfect ever since. Not a single restart or freeze or bootloop. I reccomend changing the battery first
[Galaxy Note 4 Q&A, Help & Troubleshooting] woldranger:
Just a quick question for the fellow sufferers of this blight on the Note 4 -do any of you recall how it started? I'm having issues with my new (to me) N910F where every now and again, it won't connect to the internet through certain apps. The phone itself is still responsive and there is an active connection (I've tried it with both WIFI and mobile data) as I can browse the net on chrome, send and receive messages through whatsapp. But things like ebay wont connect.

I'm concerned that this might be a warning sign for things starting to fail - if it is then I'll get rid of the phone. But I'm hoping that it's just a random problem that's not connected to the issues that killed my last Note 4. So a little input would be greatly received!
[Galaxy Note 4 Q&A, Help & Troubleshooting] hondax:
I have had an restart issue from I got the first MM update. The unit would randomly restart typically once per day. After restart, it would need a manual restart in order to get the unit fully responsive again. In particular the pedometer would always halt. Random restarts has not happened since the last update (DPL2) was installed on Thursday and I am beginning to feel some optimism. N910F
[Galaxy Note 4 Q&A, Help & Troubleshooting] kevalpatel92:
So I have give it a shot and purchased a new anker battery and went back to 5.1.1 and still my phone gets freeze couple of time but the good news is now it doesnt get restarts..so some relief. Dont know whats the issue here When i was moving back to 5.1.1 phone did give me EMMC error couple of times and it went into bootloop for half an hour then it managed to come back to normal.
[Galaxy Note 4 Q&A, Help & Troubleshooting] crimson12:
I'll be honest, I didn't read most of this thread. However I did suffer from the freeze and restart. Replacing the microsd card with a different one fixed my problem entirely for what its worth.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Marky-boy:
Hi folks. Reading through this thread, I've had same problem.. N910G Australia, with Telstra factory firmware.

For all my efforts to resolve, I've managed to wreck the pit file on my phone.

Can someone link me a current Lollipop pack with all files (including pit) I need to restore my phone to working order? Al the links I've come across are dead or for other variants.

Edit: prefer Lollipop, as the errors all seemed to happen after upgrade
[Galaxy Note 4 Q&A, Help & Troubleshooting] woldranger:
I'm not sure about on here, but I had help over at Sammobile when I tried resetting my failing N910F and it dies mid way. I think this was the thread I used. Good luck.
[Galaxy Note 4 Q&A, Help & Troubleshooting] pcp20us:
Ha mate. Try this thread https://xdaforums.com/note-4/snapdragon-dev/note-4-debrick-img-t3488114/page8 its is about debricking images as thats what i needed, but may be other info. I have the canadia version note 4. I think i found some useful link in the above thread.

Try this link it might help but its for an F series.

http://pastebin.com/7KQxRRNF
[Galaxy Note 4 Q&A, Help & Troubleshooting] Soimu:
How can I kill my N910F?

Hi everyone, I have the same problem here and I want to send it to Samsung care but since I broke my warranty after rooting they will refuse my phone and if I kill the phone they will not know I rooted it.
[Galaxy Note 4 Q&A, Help & Troubleshooting] callumbr1:
They will always know its been rooted by the flash counter and tripoed knox.you can buy replacement main borad online for around $60 and replace yourself
[Galaxy Note 4 Q&A, Help & Troubleshooting] Soimu:
Hmm. I don't think. I want to give it a try since I can't use it normally and it's useless.
[Galaxy Note 4 Q&A, Help & Troubleshooting] 89Norcal:
Made an account just for this topic. I've read every page and decided to try the easy solutions first, having tried the more intensive solutions before and gotten nowhere.

Some context on my stock, unrooted device (T-Mobile 910T):

-Constant reboots, lagging, freezing, and reboots into download mode about 4 months in (Lollipop at the time)

-Wouldn't wake from sleep, but would play notifications

-Apps took forever to open, and froze the phone for 5-10 seconds when opening. Frequent reboots after freezing

-After multiple hard/soft resets, my phone completely hard bricked on me

-Sat in a box for a year

-Decided to try and fix it, was successful using the "debrick" image with Win32DiskImager

Even after revival, it had all of the above problems but luckily never bricked. Still had to constantly remove battery, hard reset, and use every trick to keep it operational, until now...

Solution that worked:

Granting "TouchWiz Home" permission to Contacts & Storage, posted earlier in thread

How-To

1. Settings> Application Manager

3. Press 3-Dots Menu > "Show system apps"

4. Select "TouchWiz Home"

5. Select "Permissions" and enable Contacts & Storage

Now it's working great (couple hours in). None of my apps are freezing, they open quickly, and the screen wakes every time. Not a single reboot either. I was convinced it was a hardware issue but so far so good. I'll report back if the problems return.
[Galaxy Note 4 Q&A, Help & Troubleshooting] 89Norcal:
So 1 day in, phone performance is still massively improved with minimal lag and only 1 freeze. However about 6 or 7 times my screen did not wake when pressing the power button. A couple of those times it would vibrate and then just reboot. I tried using a new launcher but that made no difference. Not sure if this is still a software issue.
[Galaxy Note 4 Q&A, Help & Troubleshooting] alisem:
Bonjour

Hi everybody I have the same problem with my n910F,

I spent a lot of time to flasher almost all custom rom (4.4, 5.0, 5.1, 6.0) and official but without success,

For me the solution that worked is the cpu awake aplication;

https://play.google.com/store/apps/details?id=com.dambara.wakelocker

(check unlimited time, phone start, display off and activate)

The advantage of this application with respect to the other cited in the pressed messages is that it launches itself after restart

Unfortunately your battery will drain a little faster but at least your phone will find its stabilized,

Personally I think the problem can be fixed with a modified kernel but unfortunately I do not have the necessary skills for this,

Here I await your returns for this provisional solution,

In passing I thank the developer of the application "Innovemind"

bonne chance
[Galaxy Note 4 Q&A, Help & Troubleshooting] pcp20us:
Hi 89Norcal. I have found my note 4 to be very intermittent. I use wakelock to keep cpu awake, this is the only way to get this thing to work. However after about 2 weeks it was off one morning and could nt power it on, freezer worked for me. So good luck and keep us posted.
[Galaxy Note 4 Q&A, Help & Troubleshooting] 89Norcal:
Yeah I'm worried this is another temporary solution. My phone works absolutely perfect when in use, but again today I had issues with the screen not waking up when pressing power. I removed the battery, waited a few minutes, and replaced. It then wouldn't go past the "Samsung Galaxy Note 4" screen. it would either sit there or restart again or just shut off. Then I left the battery out for over 30 minutes, and it booted up just fine. The screen would respond if I pressed power shortly after a timeout. Now I just left it alone for a minute and it won't wake again.

Now, the notification light doesn't even show making me think this is a power issue now. I'm way out of warranty so there's not much I can do, but I've never had such a horribly functioning smartphone before.

**UPDATE:**

After constant failures to wake and having to remove the battery for extended periods to even boot, I decided to try the Wakelock app and it's completely fixed the problem! My screen wakes every single time now and hasn't shut down or gone into boot loop for about 16 hours now. Battery life has definitely taken a small hit, so looking forward to finding a permanent, app-less solution.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Note4usr:
Hi all,

********Please Read*******Possible Solution********

My trusty Note 4 also started to keep freezing and restarting on its own. I went through the posts in this thread and followed and tried the Wake Lock recommendation, removing the memory card as well removing sim card recommendations and kept checking if it will fix the issue. Only Wake Lock (on Partial Wake option and Power Saving was disabled for all apps) recommendation and did work for me but the battery was draining really fast.

Since my phone started freezing and restarting recently, I was thinking their might be some app causing the issue and it looked like software problem to me, because if it was hardware issue then the Wake Lock trick shouldn't generally fix this issue.

I don't know what causes freezing and restarting issue for others but, for me I recently also installed Kaspersky Antivirus and with few other apps.

I said to myself lets trying unistalling the recently installed apps and see if it gets rid of the culprit so, I started to uninstall the recently installed apps and when I did, it was still the same until I uninstalled Kaspersky Antivirus.

As soon as I removed Kaspersky Antivirus, I could strightaway feel that my phone was working smoothly within seconds. And it was indeed Kaspersky Antivirus casuing the problem.

I did also clear the cache partition. And Wake Lock is at 0. But I still lose charge fast. This is because my phone battery is badly degraded and power saving is disabled for all apps. I think I it will still be okay if I turn on power saving for apps back again.

At first I only tried disabling Power Saving for all apps but, it didn't fix the issue though.

So if you have Kaspersky Antivirus installed and facing the freezing and restarting issue then give it try by uninstalling it and see if fixes the issue.

P.S. The device been working as before since removing Kaspersky Antivirus app but if I the problem come back, I will post an UPDATE.

Hope this share will help you.
[Galaxy Note 4 Q&A, Help & Troubleshooting] 1337SereniTyx3:
Hi guys. Flashing a custom bloatware removal zip seemed to have worked for me.

I edited a script made by [MENTION=4429486]zeomax[/MENTION] and [MENTION=3715007]SeaFargo[/MENTION] to exclude some secret phone codes and flashed it after re-flashing the latest stock firmware for SM-N910G.

It has been over 5 days now without a single automatic reboot / lag / freeze.

Let me know if this works for you too.
[Galaxy Note 4 Q&A, Help & Troubleshooting] 89Norcal:
So 3-4 days in and I haven't had a single automatic reboot or failure to wake since installing Wakelock. Performance has also remained stellar except for the slightest hit to battery life from Wakelock. I'll consider my device fixed.

Please refer to Post #239 and on for the steps I took to fix this issue.
[Galaxy Note 4 Q&A, Help & Troubleshooting] pcp20us:
Ha mate. Hope your right. Mine has been pretty stable with wakelock. I recon in the last month it has died 2 or 3 times. I changed wake lock apps to one that restarts on boot. However last time i went to restart my phone, it did not reboot and could not power on, so into the freezer. Then pull the battery, reinstall then it boots to download mode and says mcc faliure ( or emcc) stuff around abit removing battery then it will reboot..... its consistantly inconsistant:).

It would be good if a android tech person, or actually samsung would address this problem and or suggest a work around or a fix as it seems to affect a lot of phones but in varying ways, but deep sleep seems to be the cause.
[Galaxy Note 4 Q&A, Help & Troubleshooting] 7ussain1991:
Here what I have done guys !!

I were facing this problem a month ago as my

phone gets reboot randomly as well as freezing and

shutting down by it self at 60 % !!!

Can you imagine that !

What I have done guys that I changed my

' class 4 ' microSD card to a new ' class 10 ' one as well

as I have changed the battery !

And you know what guys!

I have no longer facing this problem !

It had been resolved !

Now my phone is working fine since the last month !!

Hope it helps ?
[Galaxy Note 4 Q&A, Help & Troubleshooting] 89Norcal:
Yeah I guess I should mention I haven't ran my battery to 0% and rebooted yet. But the phone finally works like it should have. Even before these issues it wasn't this fast. As far as Samsung directly addressing these problems, it seems like the solution is usually to just replace it through your service provider or send in for service under warranty. But I haven't had a faultless android phone since my HTC One M7, kinda used to it now.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Gurpreetswe:
well, tried everything. nothing worked as a permanent fix except EmotionOS Android Nougat 7.1.1 , my phone works like new, no more reboot , no more lag. no more download mode anymore,. yea u will lose spen command though., there is no other fix except aosp roms
[Galaxy Note 4 Q&A, Help & Troubleshooting] tempy1:
Note 4 N910T

Wakelock resolved the issue for me. So where does this put us? This has to be some kind od software thing
[Galaxy Note 4 Q&A, Help & Troubleshooting] mrvaio93:
Deleted
[Galaxy Note 4 Q&A, Help & Troubleshooting] Nilaypaul2017:
i have the same issue with my sm-n910g in india

i have never rooted my phone still 1.8 years no problems and now yesterday the phone is automatically restarting and lagging,freezing dont know what to do..in india we just have one year warranty and now i dont have enough money to change the motherboard which will be same as the phone's price..just need to say we can ban samsung from doing ****s with our hard earn money..i dont know what to say but if we gather against samsung then they might provide good and prompt service :(:(:crying:
[Galaxy Note 4 Q&A, Help & Troubleshooting] alisem:
try to use cpu awake apk

https://play.google.com/store/apps/d...ara.wakelocker

(check unlimited time, phone start, display off and activate)
[Galaxy Note 4 Q&A, Help & Troubleshooting] Nilaypaul2017:
from today my phone does not even start somehow...it was showing "mmc_read failure" then nothing..my 50k even 700 dollars has gone into water stupid samsung now i am going to purchase redmi note 4 which will stay at least same time as the note 4 stays
[Galaxy Note 4 Q&A, Help & Troubleshooting] DarkevilPT:
Hi, is there any permanent fix for this problem? My Note 4 is bricked always freezing doesnt start after reboot or when the battery dies.. its a mess. :\
[Galaxy Note 4 Q&A, Help & Troubleshooting] xhanatos:
There is a band-aid fix, install the Wake Lock app.

When your phone shuts down because you depleted your battery:

pull out the battery

let the phone cool down (place in the freezer. 1min should be enough)

put the battery back in the phone. Don't place the back panel back on because you'll be doing another battery pull later. DO NOT TURN ON.

charge the battery for a few mins so the battery has some juice.

pull out the battery. let the phone cool down again (freezer again if you want a quicker cool down)

insert the battery back in the phone

boot the phone

The above steps WORKS FOR ME when my phone shuts down due to a dead battery. It may or may not work for you.

From my experience, the mmc_failure error comes up when the phone is hot/warm. Once it has cooled enough, it will boot up normally.

INSTALL WAKELOCK from the Play store. Wakelock prevents your phone from going to deepsleep. Something is wrong with our Note4 and it cannot wake up from deep sleep (cause of the Note4 crashes, lags etc). Do a search on this thread for the wakelock settings.

INSTALL a ROM with HOT REBOOT option. you can HOT reboot the phone and it will reboot safely. it will not crap itself

and for the love of god, read the whole thread.

I've installed WAKELOCK since September and my phone is running ok, considering how badly it was performing before wakelock.

Alternative to wakelock app - https://xdaforums.com/showpost.php?p=70975100&postcount=254
[Galaxy Note 4 Q&A, Help & Troubleshooting] JuanWilliman:
After reading the ENTIRE THREAD, I just wanna smash my Note 4 (N910C) against the floor really hard.

Everybody seems to have solved this issue after installing WAKELOCK, so I did it, and enabled Partial Wakelock. I didn't noticed anything else than battery draining and slow charging. The device overheats, freezes and reboots while doing basic stuff like updating Facebook or browsing the internet, replying a WhatsApp...I don't watch videos or play games on my phone, and that bothers me, because if I don't have a freezer around, I cannot turn the device on again, even if it's cool after some minutes.

I CAN'T UPDATE APPS OR BROWSE THROUGH INTERNET MORE THAN 20 SECONDS!!!

I really want to find a fix for this phone, this will be my last Samsung phone ever.

Please, if there's an alternative fix for this, tell me please. Thanks
[Galaxy Note 4 Q&A, Help & Troubleshooting] Nilaypaul2017:
sure bro and this is my last sam**** phone too... just raise a complain against samsung together maybe its the way to stop this dumbass company..
[Galaxy Note 4 Q&A, Help & Troubleshooting] JuanWilliman:
I don't think they would take us seriously...companies (except for Google and Apple, as far as I've experienced), don't give a damn about older devices, apart from this one being my first and last Samsung phone and android phone, I think I'm gonna go back to iPhone, I miss having a device "idiot-proof", they may not have the best features but at least they will work fine for at least 3 to 4 years with the latest software.

I'm not saying I don't like android, in fact, i loved android, but it's too much money to me to keep risking on wether the next android I buy will have huge flaws like this one, I want a phone that works, period.

I'm selling my Note 4 ASAP before I smash it into pieces.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Nilaypaul2017:
exactly thats the fact actually now i am buying some cheap phones to get the work done sam**** is stealing our money and in technology no one can guarantee how long a device can last and its too much money and i feel the pain....and it has no solution how to fix it the service center told to change the motherboard which costs 300$ dollars which is too much...and bye to samsung and flagship phones i am not going to buy again a costly phone which lasts only 1 or 2 damn years ...i can purchase 5 device which will last 1year each and it will be value for money
[Galaxy Note 4 Q&A, Help & Troubleshooting] realhb:
Has anybody else tried this and also had any success?
[Galaxy Note 4 Q&A, Help & Troubleshooting] JuanWilliman:
I've used CM 13 and it worked flawlessly except for the camera, is unstable as ****, it works whenever it wants to, and also the resolution is a little bit worse than 4K, but still great pictures.

Pros of using AOSP:

-Phone will be very fast and snappy.

-you'll have more storage space, at least 2gb more.

-you can have the latest android as soon as developers release a stable build (which is way faster than Samsung).

-No bloatware.

-You can use almost any MicroSD card without any corruption.

-Many more...

Cons of using AOSP:

-You'll loose the s pen features, but at least you can use it as a regular stylus.

-You'll loose the fingerprint scanner.

-You'll loose the heart rate monitor.

-the camera will always be unstable.

-if you already use many Samsung services, you'll loose almost every one of them.

-Many more...

In my experience, I've used CM13, it was amazing, but I missed many features regarding the s pen, so I went back to stock or note 5/ s7 ports every once in a while.

But my mistake was that I always forgot to backup de EFS folder, so I would erase my IMEI, loosing any cellular connectivity. Twice. I've spent at least 100 bucks on IMEI restore. So backup the EFS folder on your recovery and think about the pros and cons about AOSP.

I hope this post helps you ;)
[Galaxy Note 4 Q&A, Help & Troubleshooting] realhb:
Thanks, this is great :) have you ever suffered from the freezing / restarting issues, and if so did switching to CM help fix that in any way? I'm willing to try it for a bit if it might help, I've tried several N5 / S7 ports now and none of them have fixed this problem.