yashsingh1/xdaforums huggingface dataset:
[Galaxy Note 4 Q&A, Help & Troubleshooting] Gurpreetswe:
This worked for me

In kernal Aditutor , go to CPU hotplug and change min cpu online to 2 .and max cpu screen off to 2. Scroll down and do the same under msm HOTPLUG,

its helping for now, and i have stopped using wake lock. Dont know how long it will work, but u can try :good::good:
[Galaxy Note 4 Q&A, Help & Troubleshooting] Mahi singh:
Onec I tried to Home+ volume up +Power key in my note4. in few days I going to switch off and it's not open simple pressing power key so I slep on it and then try and it's switch on again.but one day it'ssuddenly switch off. Bro My Samsung Galaxy Note 4{910F} is suddenly switch off and now I can't switch on ,.when I connect charger it's shows nothing in screen what can I do plz help me.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Gurpreetswe:
Dont worry ,

Connect it to pc, if QUALCOM 9008 shows under devices and printers , then i can help you to revive your phone.
[Galaxy Note 4 Q&A, Help & Troubleshooting] MissionImprobable:
So, at the moment it seems my issue has been resolved without a new motherboard. All the devices I'd gotten were on the latest firmware, but despite coming off of factory resets were always sluggish. I'm guessing the Samsung techs use Odin rather than any of the standard fare like Smart Switch, etc, dunno for sure, but after getting a full wipe and reinstall at Best Buy my phone is literally smoother than at any point on any of the phones I've had.

The input lag that's normally there with the keyboard is gone, browsing is smooth, and boot up after switching batteries is faster. I would like to know for sure if there's anything additional that they do so that it can be passed along.
[Galaxy Note 4 Q&A, Help & Troubleshooting] shadowxxx:
I have same problems with my Galaxy 910F, until i decided to root and install WakeLook - last try to regain my phone. I tried before to reflash original operator firmware from Samsung, with clean cache, reset to factory etc etc in vain - every time my phone become useless after first calling apel, after download a apps from store or when try to activate fingerprint scanner. Every action requiring some resources, freeze the phone for few seconds. After 3 or 4 feezes i had part of reboot ... and so on

After install WakeLock i have 3 days of intense use (up to 3 or 4 apps running simultaneous) my phone, surprising, works without problems. I don`t know if this problem is caused by motherboard or other component, but this apps save some money for me in this moment. Next time I think about a Note 5 :)
[Galaxy Note 4 Q&A, Help & Troubleshooting] myxcon:
[MENTION=7671330]Gurpreetswe[/MENTION] thanks for the detailed guide but unfortunately for me it did not work. I get an error saying Odin flash write fail when writing system.img. I am at a complete loss of ideas and dunno what to do next to try and recovery this damn phone. As others have suggested, using the app wake lock works 95% of the times, but the phone is sluggish.

Any other tips are appreciated.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Gurpreetswe:
I found the cause

Hello guys ,finally I managed to fix the rebooting issue . THE magic trick which worked is " DISABLE THE SMART MANGER " . This crap was running in background and caused lagging and random reboots. My device is running so smooth now. No need to use wake lock anymore. Please download the app called " no bloat" to disable it. I also disabled samsung weather daemon service and other unwanted bloatwares like car mode ,touchwiz and gear VR etc. using nova launcher now.you have to be rooted to do that

Feeling Awesome
[Galaxy Note 4 Q&A, Help & Troubleshooting] Gurpreetswe:
Screenshots

;)
[Galaxy Note 4 Q&A, Help & Troubleshooting] DuperMan:
Thank you. Just did it on the bus, hope it works xD

Sorry for the long quote :)
[Galaxy Note 4 Q&A, Help & Troubleshooting] kevalpatel92:
how can I disable smart manager if i am not rooted?
[Galaxy Note 4 Q&A, Help & Troubleshooting] GeKados:
I had the same problems with my Note 4 . Suddanly 2 wk ago, start to freze, become very hot and after that keep restarting.

I have installed Wake Lock after I have read this topic and the functionality improved. No more restarts, and no more freezing...., but another problem start to happnend last weekend. If swich off the phone or restarts simply doesn't start. For starting the phone took several minutes (battery out, start buton + for 1 minute and after seveal try it starts) , otherwise the functionality was OK. I have tried new battery , several antivirus or cleaning software... nothing helps.

I had 2 more weks up to my warranty expire so I went with the pfone at Samsung service center.....the conclusion : motherboard has worn out. !!!!

In conclusion , if you have this type of problems => go to Samsung service !!! Other solution doesn't solve the problem only keep a phone alive for little more time ... the final will be the same.

Cristi
[Galaxy Note 4 Q&A, Help & Troubleshooting] 3kgt:
Yest another user with simular issues.

Suddenly out of no where my phone wich i love started freezing, laggin, restarting...

My phone dosent get hot, i got stock german room and uppdated about 2 weeks agoo. Sadly i have been lazy and not made any resets for the last 4-5 uppdates.

testeded removing latest installed upps..didnt help

cleared cashe ..didnt help

problem is getting worse, and now sometimes its getting hard to restart and taking loong time, couple of times it even goes into download mode.

tested now removing sim and sd, no use

Now i will test touchwiz permissions and disable smart manager and test the wakelock to see if those help after reading this whole topic.

Sadly warranty will be hard to fix since i have already read that several who had problems with there phone Samsung gave them a S6 replacemnet here in Sweden duo to no replacement parts.. so dont want to risk taking it in for service and never getting it bad. will try my way

Next if nothing helps is complete reset, and downgrade to the last room i had before this one.

I was scared to brake the phone untill N8 comes out since i use the S pen and wireless charging and Ir and no other phones do offer this, and now this **** happens without me even dropping the phone lol :rolleyes:
[Galaxy Note 4 Q&A, Help & Troubleshooting] jDeLaGray:
Just wanted to chime in that as of yesterday, I've been having the same symptoms. Did a factory reset, cleared cache and my phone still does it, which makes me believe it's a hardware issue.
[Galaxy Note 4 Q&A, Help & Troubleshooting] 3kgt:
The crazy part is that this has happened yet to me only at night!!!!

For example today untill now i had not had 1 singel restart or freaze..

dunno if it has to do with some apps im starting

I have 3 batteries so i did change battery yesterday and it didnt help..

If this is in hardware related, why not all the time! I did use navigation today and 3 days in a raw, lots of calls and other stuff.,.not one singel problem. :S

Uppdate.. As much as i wanna understand this it dosent not make sense yet!

For example this morning i did a backup with mybackup pro and a nother with helium.. This meaning that the phone should get "warm" and work extra.

I hade GPS navigation for at least 30 min on, calls ect.. no crash

But now i come home, battery about 50%

I did open several apps, after some "hard" usage it restarted, and once it started i opened the same app that made it crash and it crashed and restarted again. I noticed that the phone was a little warm, nothing more than usual. I did put the phone into the frige for 30 sec...took it out, restart and same apps works without problem..did even have a 10 min call..

So i dont know whats causing the ****, if its hardware so Why not all time time?
[Galaxy Note 4 Q&A, Help & Troubleshooting] DodsRyckarn:
I have this problem.

I also experience that the screen get all glitchy when it freeze. I have dr.ketan M6 rom installed. have tried to going stock and several different rom but same problem no matter what.

For me the freezing starts when i charging the phone and using it at the same time. Lastly, the phone getting very hot doing boot loop.

Do i need to buy a new phone?
[Galaxy Note 4 Q&A, Help & Troubleshooting] 3kgt:
I would try to find out the problem before buying..beside for me there is no other damn phone wich compare or i would already have bought it a loong time agoo.. waited for the N7 wich didnt make it..im used to the pen, ir, wireless charging, ect ... only other phone wich comes near is the N7 wich i will be forced to buy if things dont work out untill N8 comes out..

One more thing..just found out from Samsung Sweden that i have 3 years warranty!!!Dont know in your countries, but you can as for it. So if things dont work out i will take it for service...yesterday it only froze/restarted 2 times in a row that i wrote about eariler.
[Galaxy Note 4 Q&A, Help & Troubleshooting] woldranger:
I was looking to see if there was an obvious fix for this issue and then found this thread - doesn't look like it's good news, very hit and miss with these workaround "solutions". I'm wondering what specific versions of MM people are running -is this just affecting stock ROM's or custom ones too? I just downloaded the latest UK build with the November security patcg. I wonder if that'll change anything?
[Galaxy Note 4 Q&A, Help & Troubleshooting] loycheewah:
Hmm strange problem. How about send it back to Samsung for a fix?
[Galaxy Note 4 Q&A, Help & Troubleshooting] 3kgt:
Cant personally answer u for sure, but from what i read here and other android forums its not rom relatied to stock rooms!

Dunno if All who have "simular" problems are caused by hardware or software. or its even cause of the same problem.

I now did reset cashe then reseted the phone then did reflash latest germany stock rom.

have yet in 2 days got a couple of freazing, one mmc read problem and 3 restarts.

So the problem is either deep software related in my opinun since i get this even before the phone did start Once after the flashing. OR its harware related.

If its harware i even suspect battery/power manigment since my phone battery before the reflashing died on 12%, and even tried to restart several times and it died on me.

And almost all of my freze, restart problems have been while im charging, or lower battery than 60%

Last resort i will take it to Samsung this week. Hopefully they still got spare parts. If not i will tell them to put my phone back together and live with it untill N8 comes or my phone brakes/dies totally. I did searche several hours yesterday to find a nother phone "even" as a replcement untill they fix mine or as an emergincy phone. But cant find one damn phone wich i want. Beside i almost have to stick with Sammy phones sine i own Gear S, S3, IconX wich all works best with sammy phones. and pay 900 bucks for a S7 edge is just too much. Even looked for a new N4 without any luck.

Excuse my speeling :D
[Galaxy Note 4 Q&A, Help & Troubleshooting] woldranger:
Looks like the phone's screwed! Everything I've read points to a faulty logic board and it's hardly an isolated incident - lots of people are having/have had the same issue, so much so that people have had their phones replaced under warranty with the Note 5 (after reading some posts from last year).

I bought the phone used 6 months ago so I've no way of getting any repairs under warranty. Ordinarily I'd just look to pick up a phone where I could take out the part, but it seems there's a pretty good chance that it could die too. Replacement boards dont look cheap :(
[Galaxy Note 4 Q&A, Help & Troubleshooting] 3kgt:
How loong warranty do u have? wich country ?

Sweden most Samsung products is 2 years. But the support told me they have 3 years for N4..hope they told it right. Biggest problem is parts.

PS not 1 singel freeze/restart today! And F***Cked upp part is that i installed all my apps on my Nexus 7 2gen to have as a backup, same apps and same settings backed upp by Helium.. Now the Nexus 7 is freezing and restarting, And it never did that either. So once agin this makes me suspect my apps, or maybe a combination of some apps :S Cant find any logical reason why my Nexys 7 would do same **** at the same time!
[Galaxy Note 4 Q&A, Help & Troubleshooting] woldranger:
I don't have warranty, I bought it used form ebay about 6 months ago. All was fine till thursday.

I tried using TWRP to restore the phone back to a time prior to these issues but within a couple of mins it started to freeze again :(
[Galaxy Note 4 Q&A, Help & Troubleshooting] woldranger:
Okay, so I tried the Wake Lock app and it seemed to have got rid of the freezes and reboots but at the expense of battery life. I figured this is the best scenario I could hope for given the situation and so I went to restore the phone back to the most recent Nandroid backup but then got "restore error opening (no such file or directory)" in TWRP. I went to reboot but then was faced with "no os installed"! After rebooting back into TWRP I could somehow manage to restore the backup I'd last used! Odd, really odd. I hadn't done any wiping at all as I was concerned that things might have got worse!

So now I'm stuck with a phone that may or may not last but certainly has lousy battery life. Do I try to buy a replacement mobo and hope that doesnt die too? I can't think of another phone that ticks all the boxes this does - I think I'll have a look through and see what other people moved on to next - the replacement battery is a must for me when traveling but it's gonna be really difficult to find.
[Galaxy Note 4 Q&A, Help & Troubleshooting] WillyWillFour2Oh:
My SM-910T started doing the same things last week and I first thought it was because I had rooted it and the nightly wasn't stable. Checked Synapse app and all cores were working properly. Restored it to stock and still had the issues. Upgraded to Marshmallow and the issues persist. Remove SIM, issues persist. Remove SD card, issues persist. Use partial wake lock, issues persist. This is without a doubt a hardware issue and that makes sense because this device reaches temperatures far higher than any smartphone motherboard can be subjected to while continuing to function properly. This is 100% poor quality manufacturing on Samsung's part and I think a class action lawsuit is in order here. I'm sick of these big corporations and their planned obsolescence! I ordered a Blackberry Priv, I will never use a Samsung phone again. It's sad because their Chromebooks are outstanding.
[Galaxy Note 4 Q&A, Help & Troubleshooting] fragia181:
Hi ! I have a big problem with my n910f....

Alfter many... many... flashing firmware i have a lot of lag, frezzing and automatic restart in download mode....

I try to reflash pit file... and nothig... i have reflashing original samsung firmware.... i have try to remove sd card... i try to restore efs folder... nothing... some time it still freeze and autorestar ib download mode... i think it's phone memory damage... when i try to lounch a cpu and gpu diagnostic it's all ok... any opinion please ? It's time to change my Phone?
[Galaxy Note 4 Q&A, Help & Troubleshooting] masood8:
I have the same exact problem which u r facing, I tried almost all what u did but still same problem.

I don't know what to do...
[Galaxy Note 4 Q&A, Help & Troubleshooting] woldranger:
I downloaded the Wakelock app as people recommended in this thread and selected partial wakelock 4. It's stopped the issues but hits the battery life. I'm gutted cos I was really happy with my N4 up to this point.
[Galaxy Note 4 Q&A, Help & Troubleshooting] masood8:
I am already using this app but it drain the full battery in 6 hours only, also the mobile keep heated in this duration.

I can't find the solution, I think its can be a Kernel problem OR finally the Motherboard memory problem.
[Galaxy Note 4 Q&A, Help & Troubleshooting] gogent:
Anyone tried downgrading to Lollipop 5.1.1 to see if these randoms reboot would go away?
[Galaxy Note 4 Q&A, Help & Troubleshooting] woldranger:
Guys, how are your phones holding up - still fine or have the issues returned?
[Galaxy Note 4 Q&A, Help & Troubleshooting] 3kgt:
Sadly my phone like many others got worst when i didnt think it could this damn fast!

Now latest 3-4 days it has restarted 10-15 times a day at least, many freezes ...

So i was forced to buy a new phone untill samsung gets me parts wich i ordered "if it ever gets to me"

Bought a Nexus 6P and a Moto G4 Plus.. And the stock damn phones are pretty fast, fingerpring is super fast..Thow hate the 6P fingerprint in the back and will take it back.

I miss the S pen and many apps/functions in the sammy phones.. sms app and many apps in stock sucks.
[Galaxy Note 4 Q&A, Help & Troubleshooting] gogent:
I downgraded to Lollipop 5.1.1 from the latest Marshmallow and so far so good. This is the last straw as I tried just about everything. If I experience any random reboots then I'm getting a new phone. I'm I tried countless ROMs, tried the fixes that were mentioned on this thread, but nothing worked. My steps below.

1. Boot into Recovery and factory reset.

2. Shut down phone.

3. Boot into download mode.

4. Install Lollipop 5.1.1 using ODIN

5. Go thru the setup and quickly set airplane mode

6. Prevent OTA updates with the video below.

https://www.youtube.com/watch?v=3XlxPPQ7z0I

7. Disable all animation. Developer options> set window animation scale, transition, animator to off. Transition effect on the home screen settings to none.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Erwindejonge:
Same problems for 1.5 week

Tried to flash custom rom, stock firmware, wiped and formatted the damn thing to much.

I think its a software or partition problem. How could such a big different of age of the phones get explained? Some are 1/1.5 years old, some are 2 years old. And it all started after the mm update.

However I Was lookin in flashfire at the partitions and noticed that the name of md5 partion is mmcblk0. Dunno if that partition could be the problem.

And i found a tw 5.0.1 repair firmware at a tread from sammobile, wich im gonne try. I will give report and link if it works.
[Galaxy Note 4 Q&A, Help & Troubleshooting] xhanatos:
Good luck. I've gone down that route and tried the 4.4.4 repair firmware. Didn't do jack.

http://xdaforums.com/note-4/general/emmc-bug-fix-tried-sm-n910g-sm-n910p-sm-t3468721
[Galaxy Note 4 Q&A, Help & Troubleshooting] Erwindejonge:
Have a bigger issue now. I lost my pit binary.

so till this point no succes at al

no stress just found my file
[Galaxy Note 4 Q&A, Help & Troubleshooting] SCViper:
Is there any possible way this is a software problem and not a hardware one? The fact that wakelock lvl 4 makes it perfectly stable is weird to say the least.

I have a 910F that I've owned for more than 2 years without problems and recently it started to have the same symptoms everyone seems to have: freezes, lag and ultimately restarting like mad. I've tried different ROMs, I tried CM14.1, I tried going back to kitkat on the earliest possible version, still nothing. It acts exactly the same way: it stutters, gets stuck, reboots or shuts down and refuses to power back up unless I either leave it be for a few hours or I take out the battery and hold the power button for a LONG time. EMMC errors, ODIN write errors, everything is so erratic.

The wakelock app solves this problem COMPLETELY as long as I start it as soon as I power up the phone. It's like magic and I honestly don't understand how that can make the phone stable.

Does anyone have ANY explanation at all? Is there any chance at all that this is software related and not the motherboard failing?
[Galaxy Note 4 Q&A, Help & Troubleshooting] 3kgt:
Dont understand it either, but the thing i cant understand either is why it only dose that sometimes and not always! hardware faliure normaly is one time thing and it stops working.

Have not tried the wakelock, but will do and see. Samsung have no parts yet

And sure it might be software glich deep in the motherbord like pc BIOS. a part that we cannot get to while flashing new rom.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Erwindejonge:
Update from my little adventure to flash the repair firmware. After a whole night trying to fix my system partition. Couse I coudn't flash a thing. Not with twrp or even with odin. 12hrs searching and trying I was able to flash a pit file, Custom rom, bootloader and mode. I have no problems anymore with lags or rebooting. My phone is stable for 3 days now.

I formatted my system partition.

Flashed a pit file

Flashed bl (DPH2)+ cp (DPB1)

I think the problem isn't hardware. But a MD5 partition, BL and CP problem after the MM update
[Galaxy Note 4 Q&A, Help & Troubleshooting] MissionImprobable:
My major resets are gone. My only issue now is soft resets, and it seems to be something caused by Sammy's software not playing well with Nova. Just gonna bear it for now, not gonna give up my paid launcher and all its features.
[Galaxy Note 4 Q&A, Help & Troubleshooting] masood8:
Can you explain your process? Where did u find the pit file and how did you formated the system partition?

I am having the same problem on my Canadian N4

thanks

---------- Post added at 05:14 AM ---------- Previous post was at 05:11 AM ----------

I downgraded to LP 5.1.1 but the frezzing nd reboot problem is the same, but lesser than MM
[Galaxy Note 4 Q&A, Help & Troubleshooting] jimbomodder:
Has anyone tried this,

1),Root device and install twrp,

2), completely format the entire phone including internal memory,

3), after format boot to download mode via button combo and flash latest firmware once, after that boot to recovery and factory reset/wipe cache and boot back to download and repeat the process a further two times and then let the phone boot and set it up. I've not got mine as yet but the previous owner has reported the random freezes. Let me know your outcomes, ( remove sim and exe as card whist formatting and flashing)
[Galaxy Note 4 Q&A, Help & Troubleshooting] SCViper:
I will definitely try this myself. Could you offer a little help with how you format the system partition and what PIT file you flashed? Thank you very much.
[Galaxy Note 4 Q&A, Help & Troubleshooting] 3kgt:
Could you please give uss a more noobie friendly explanining or guide.

Formated with odin ?

Stock roms ?
[Galaxy Note 4 Q&A, Help & Troubleshooting] Erwindejonge:
I think I could only explain everything in noobie style. Cause I'm a noob to. Haha

But I will write every step later today in my best english, cause I'm working right now. Also I will add all links to the files. Including credits for the original posters of them.

I cant guarentee that its working for everyone. Cause my phone was in a sort of brick before I did al this.
[Galaxy Note 4 Q&A, Help & Troubleshooting] pwhooftman:
Wake lock app works. Is this the MM deep sleep improvement playing up?

The wake lock app works perfectly. I seem to remember MM brought improved deep sleep behaviour further improving battery life. Could that be the cause?

Funny thing is i updated to MM weeks ago, and rooted afterwards so no OTA updates. But problems started a few days ago, like something is burning the emmc due to bad programming. The first symptoms i experienced were a few seconds delay in answering calls, no other lags.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Erwindejonge:
9

I didn't get any ota update. But after I flashed a pit file, other bl/cp and formatted my system partition I had no lag or rebooting for 4 days now. And I'm on the same rom wich I used when the lags and rebooting started.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Nohrice4yooh:
I have been having the same problem pf freezing and rebooting. I am on stock rom. Things that seem to worsen it is using the Sview cover or 3rd party fast charger. Plugging it into the usb port of my pc seems to help. Don't know if this is just placebo effect.