yashsingh1/xdaforums huggingface dataset:
[Galaxy Note 4 Q&A, Help & Troubleshooting] DarkevilPT:
So basically he installed CM which is now LineageOS. I've tried LineageOS and it still freezes all the way.
[Galaxy Note 4 Q&A, Help & Troubleshooting] realhb:
Alright thanks, looks like sticking with the wakelock fix is the only thing for it at the moment.
[Galaxy Note 4 Q&A, Help & Troubleshooting] DarkevilPT:
or maybe this: https://xdaforums.com/note-4/snapdragon-dev/note-4-debrick-img-t3488114

Im trying that thing now.
[Galaxy Note 4 Q&A, Help & Troubleshooting] realhb:
Looks interesting, let us know if it fixes anything :good:
[Galaxy Note 4 Q&A, Help & Troubleshooting] gogent:
Anyone on the latest Android update with WakeLock? Ever since rolling back to Marshmallow with the combination of WakeLock my phone has been operating flawlessly. I"m not sure if I should upgrade it to the latest Lollipop.
[Galaxy Note 4 Q&A, Help & Troubleshooting] fat-lip:
Sad to hear that Note 4 users still have this problem up till today. Mine freezes when using an app/unlocking the phone, and then restart and i'm only running Kit kat 4.4.4.

I did not even upgrade for the past 2 years since the day i bought it till today and it has been smooth without any issues, only for the past few days this suddenly happened.
[Galaxy Note 4 Q&A, Help & Troubleshooting] 89Norcal:
I was. However I have to update on the status of my Note 4. After working perfectly while using WakeLock, I allowed my battery to run to zero which brings back boot problems. After trying to hard reset multiple times, I was given a "Kernel Panic" error, and any boot to the "Galaxy Note 4 Screen" would just instantly die.

At this point I'm pretty much done with this phone. By far the worst electronic device I've ever owned in my life. Also the last 3 Android devices I've owned have all had issues (mostly lag, at worst complete bricking) so I think I'll try out Google phones, or just go with an iPhone.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Am1m:
Note 4 freezes, lags and reboots

I just wanted to summarise and share everything that I have tried so far by going through all the posts in this discussion up to this point. My problem started when I changed the fingerprint setting to not ask for my fingerprint when the phone is in my pocket. After couple of days the lagging and freezing started. When I tried to turn it on, occasionally it went into download mode and eMMC read fail could be seen on the top corner. Removing the battery and pressing power button again would turn the phone on. Everything I have tried after reading hundreds of articles online have not worked. The only solutions that seems to be working so far are from xda forums. My note 4 was running stock android marshmallow when the issue started happening.

Solutions that I have tried by going through 28 pages of this forum and so far no freezes, lags or reboots:

1.	Set permissions for touchwiz for contacts and calender to "allow".

2.	Disable power saving option under battery

3.	Disable battery optimisation for EVERY SINGLE APP one by one, under battery option

4.	BUT MOST IMPORTANTLY, I installed wake lock and enabled option 4 which is partial wake lock and set it up to “launch at boot”.

I believe the last option is what did the trick but I went through with options 1 – 3 as a precaution. I will deactivate those options one by one except for wake lock and update you guys if it makes any difference. So far my phone is running blazing fast but if I havent yet put it in my pocket which is what usually make the freezes and lags worse and my phone just turns off in my pocket. I assume its because of overheating.

Solutions that did not work:

1.	Installing Resurrection remix 6.01. Security option wasn’t working so I removed it

2.	Installed an android build at least three builds before the January security update thinking that it might be the update causing the issues but nothing

3.	Used Samsung emergency recovery to install stock again

4.	Then rooted the phone once more and this time used titanium backup to remove all the bloatware but the issue still continued

5.	Installed Emotion marshmallow ROM which did not help either.

6.	Installed Root Booster and paid for the extreme package to try and optimise my CPU load and RAM heap size still nothing. The extreme stability would prevent my phone from rebooting and I had to remove my battery each time I rebooted to make it work.

7.	Removed my simcard and SD card but same story again

8.	As someone suggested on this forum, I also froze smart manager but that removed the battery option from the settings so had to defrost smart manager using titanium backup.
[Galaxy Note 4 Q&A, Help & Troubleshooting] rishubchaturvedi:
Same issue with my Note 4 (N910G) India Version (LTE)

After rigorous use of my Samsung Note 4 (N910G) I came across post of NOUGAT ROM for N910 and thought to give a try and killed my device :rolleyes:

I rooted my phone and download ROM (CM14 & Lineage OS) both. Post TWRP process , both failed to install giving me Updater error 6 & 7 (which I solved by editing script binary - Youtube helped me here)

When I tried rolling back to my backup, Everything on this phone is liking FREEZE !!

I did almost 7 times cleaning & format and all steps again and again. Nothing worked.

This morning I got my handset finally working from backup & now current problem is Hanging/Freeze & auto restart in download mode :confused:

My handset only works in Ultra power save mode & if I try to backup my whatsapp chat (backup size of 6 GB) post 500 MB backup handset crashes ..

Is there anyone who can help me ...plzzzz
[Galaxy Note 4 Q&A, Help & Troubleshooting] fat-lip:
I have a spare Note 4 battery which i use most of the time, as the original battery is quite discharged due to wear and tear. I remember the last thing I did was use the Original, discharged battery last Thursday for a day, and switching back to the spare battery, 2 days later on Saturday i noticed the device was starting to freeze and restart.

Could it be a possibility the Original, discharged battery which had a lot of wear and tear cause the device to freeze and restart?
[Galaxy Note 4 Q&A, Help & Troubleshooting] Am1m:
Install wakelock app

install wakelock from google playstore and choose option 4 which is "partial wake lock" and finally from options enable "launch at boot".

This is what helped me fix my freezing and randomly rebooting note 4.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Xenova:
Confirm Solution: Enable Partial_Wakelock

Like mentioned by the other members in earlier this post, installing an app called "Wakelock" and enable the partial_wakelock (4th option) will solve the random lag --> random restart problem on Note 4 (n910G).

I tried to change the clear cache, flash new bootloader, flash new recovery, and using different custom roms, but the problem persists. Tried the app for 3 days, and never encountered another random restart.

The tradeoff is probably higher battery consumption during screen-off. But for me, that's far better than putting another $500 for a new phone.

I want to experiment with using "Amplify" to reduce the wakelock's frequency. But doesn't seem like there is any particular wakelock item is corresponding to the part_wakelock. Can anyone enlighten me?

Thanks.
[Galaxy Note 4 Q&A, Help & Troubleshooting] fat-lip:
Correct me if i'm wrong, but are these the steps correct to activate or keep Wake Lock run on startup:

1) Download and install Wake Lock.

2) Go to the Wake Lock app.

3) Select option 4 - PARTIAL_WAKE_LOCK

4) After step 3, there will be a grey icon on the top left corner, as well under Notifications indicating - Holding: PARTIAL_WAKE_LOCK

The very first time my Note 4 started freezing and rebooting, at first installing Wake Lock for me did not solve the issue. So i did a soft reset by going into Settings, as well as a hard reset by going into Recovery mode, and then Wipe data/factory reset - delete all user data, followed by reboot system now, afterwhich i noticed it seemed stuck at the Samsung logo.

I then took out the battery, powered on my Note 4, downloaded Wake Lock again, been using it for like 3 days, no freezing and rebooting so far.
[Galaxy Note 4 Q&A, Help & Troubleshooting] pcp20us:
It looks like my note 4 is getting worse. I started having freezing around December last year. Now its turning off or playing really dead when it freezes. Need to do the freezer trick to get it to reboot, but i have had to do that 3 times in the last 4 days.... So wakelock worked for a while but not anymore.... I recon this is hardware and about ready to drive over this thing with an excuvator!!
[Galaxy Note 4 Q&A, Help & Troubleshooting] stejjh:
BTW - Great thread.

Just to add I've the same issue with a 2 year old Note Edge (SM-N915G), tried everything this side of rooting - soft resets, factory reset, reload half a dozen factory firmware versions etc. with the same result - the phone locks up or reboots after a few minutes from boot.

I did eventually worked out a component in the device must be over-heating very quickly. i.e. within a few seconds of powering on at room temp.

So the only way of making any progress was to put the phone in the fridge for half an hour. This gave about 5 mins of up time to reload a factory firmware via odin, enable dev tools + usb debug etc. I even managed to install wakelock from the play store with option 4 but the phone still locks up at boot (if the phone is at room temp) or after a few mins if cooled in the fridge. Mad.

Doing an adb logcat over usb reveals nothing to point to the root cause of the issue.

Like many others - I'm so annoyed to have spent so much time troubleshooting only to find it looks like the hardware has failed and therefore isn't very durable. I don't expect to throw a £500 phone in the bin after 2 years.

That's the last Samsung phone this house buys!

J
[Galaxy Note 4 Q&A, Help & Troubleshooting] pcp20us:
Yep, we have a samsung led tv about 4 years old. TV is ok but the tv guide is crap. It takes so long to load that you just dont use it.

Image if some of these companies actually read what people write about their products

I laughed at the new samsung tv ad where they are telling us about their new 8 point battery quality assurance testing during product.... To late samsung the horse has bolted.

Samsung batteries i have hard are crap anyway, you've lost my business Samsung.

Happy days all you unhappy samsung note users
[Galaxy Note 4 Q&A, Help & Troubleshooting] basimzanaty:
I tried all solutions posted in the thread but in vain... Note 4 910 c kept on rebooting....

Just one solution that worked... I installed a Custom Rom after full wiping and I did not restore any of my previous apps by titanium backup "important" ... and I never get a one restart... "before installing the Rom, I got a restart every half an hour'

and this is the link

https://xdaforums.com/note-4/development/rom-erobot-rom-note4-1-0-xxu2dpcb-t3357271
[Galaxy Note 4 Q&A, Help & Troubleshooting] setiss:
With "full wiping" do you mean factory reset or did you wipe anything else?
[Galaxy Note 4 Q&A, Help & Troubleshooting] basimzanaty:
I did all wiping except for sdcard.... then when I installed the Rom I chose full wiping again which appear during the installation... after that It will take around 10 minutes to boot... but Don’t do any restore through titanium backup... start from scratch...for me... I have faced no problem at all since I installed this Rom...of course I used Twrp during the process... good luck...
[Galaxy Note 4 Q&A, Help & Troubleshooting] cory733:
went back to lollipop, and after that bought a new battery. Still won't function without wakelock and still takes a lot of tries to restart. Putting the battery in the freezer for a minute gets it to restart, even the brand new battery. Probably going to end up selling this thing just for the screen.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Godgi88:
Only one solution work for me....after installing

https://xdaforums.com/note-4/snapdragon-dev/rom-n910gdts1dph2-stock-deodexed-t3451516

and delete a facebook app, now my Note 4 N910F is like a new phone.
[Galaxy Note 4 Q&A, Help & Troubleshooting] setiss:
Thanks a lot! It worked!!
[Galaxy Note 4 Q&A, Help & Troubleshooting] Nilaypaul2017:
it is the good decision and in my case my note 4 stayed with me 1.5 years so spread this things and **** sam****...#boycott samsung
[Galaxy Note 4 Q&A, Help & Troubleshooting] setiss:
Well I was too quick here... However, thanks to the help of another user in a ROM thread, I think that I got it working for me.

What I did was TWRP>Wipe>Format Data>Yes and then I flashed another ROM. (EmotionOS in my case that is working great)

I did this yesterday and no problems so far.

Previously, things were working ok with Wakelock, but I didn't feel comfortable with the solution. I had factory reset many times before but that didn't make the trick.
[Galaxy Note 4 Q&A, Help & Troubleshooting] srjbhatla:
Hey let battery cool down and try to switch on. Give some time for phone, around 10mn

Hey let battery cool down and try to switch on. Give some time for phone, around 10mns between each try. It will restart. after that install wake lock from Google play store, and keep at partial wake. It will be ok.
[Galaxy Note 4 Q&A, Help & Troubleshooting] fovihoang:
finding another solution to replace WAKELOCK

I have met this issue few days ago with my N910P, when i'm still with android 5.1.1, then i try to wipe everything and come up to 6.0.1, remove SD card, but nothing worked untill i try wakelock, it works perfectly fine, but i want to find another solution which won't drain too much my battery.

I'm trying with #238 from Bribrigoo, hope that will work.

If anybody know anyway to fix this, please give me a hint, i will very appreciate that.

Thanks in advance.

---------- Post added at 06:06 PM ---------- Previous post was at 05:53 PM ----------

After 10minute trying this solution, my Note 4 crashed again :crying:

Get back to Wakelock
[Galaxy Note 4 Q&A, Help & Troubleshooting] logosA:
except wake lock you can try

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

Its the same principle but working better for me and with less battery consumption

Believe me I have tried everything

All MM roms present here in XDA

All stock MM roms (now i am in the latest stock rooted MM released 13/2/17)

All nougat roms (Lineage , RR , AOSP , EmotionOS)

The problem is always there and if not in the beginning, appears after a while.

Its definattely a hardware problem that I am afraid cannt be fixed with software solutions, but just for a while.

People that cant boot in their phones hear this:

Take a zip bag , take off your battery and sdcard and put your phone in the freezer. Leave it for some time (1 hour or more), take it out and try. You will be suprised.

When try to flash a stock rom and receiving emmc error>freezer and try again

my phone has spend hours in the freezer. Some times in the deep freeze for 5-6 minutes.

Any time that I want to flash a rom, I freeze it first and then do it

For heavy brick phones (no screen at all) read details here:

https://xdaforums.com/note-4/snapdragon-dev/note-4-debrick-img-t3488114/page53

good luck to all of us my friends :)
[Galaxy Note 4 Q&A, Help & Troubleshooting] tempy1:
Guys so wakelock was a temporary bandaid which stopped working for me.

I thought the memory in the phone went bad.

...BUT....

I followed the directions in this topic, freezer and all and my phone is fully operational without the need for wakelock

https://xdaforums.com/note-4-tmobile/general/ddi-mmcread-failed-boot-error-fix-t3434335
[Galaxy Note 4 Q&A, Help & Troubleshooting] setiss:
Did you try instead of wiping doing a factory reset, formating data from TWRP?
[Galaxy Note 4 Q&A, Help & Troubleshooting] fat-lip:
Guys, i had Wakelock running for at least 2 weeks and the phone ran smoothly without freezing or restarting. I transferred some photos from my pc to the phone, restarted it and noticed it was unable to turn on. Help!

---------- Post added at 08:52 PM ---------- Previous post was at 08:15 PM ----------

I did one of the steps here , Note 4 Does Not Start Up , by taking out the battery of the phone and then press and hold the power button for at least a minute to discharge the phone circuit and clear out its RAM. I then reinsert the battery and connected the phone to its wall charger and let it charge for at least 20 minutes. After 20 minutes have passed I disconnect the wall charger and was able to turn on my phone.

Maybe all that is needed is to replace a brand new battery to solve the whole issue?
[Galaxy Note 4 Q&A, Help & Troubleshooting] ssaqib4e:
Hi Guys! i have read the entire thread and tried both the wake lock application and flashing roms etc etc...

The Wakelock application does drain a lot of battery!

Also it seemd to be a software issue to me so i didn't buy a new battery as suspected by the post above mine.

SOLUTION: update:FAILS NOT A SOLUTION!

I confirm this works for N910G, others can try and let us know.

1) I went to the recovery TWRP, and wiped everything except the SD card.

2) Next i repaired file system for the system

3) Changed file system to FAT32 and then back to EXT4

4) Downloaded the pit file from here... https://www.sammobile.com/forum/showthread.php?t=30022

5) Bootloader and modem from here.. https://mega.nz/#F!Ax0gxSzZ!Qq_eJWX678bQHBhn7BHNDQ

6) Flashed these using through Odin, make sure the option REPARTITION is checked.

7) Rebooted to Recovery and Flashed LineageOS (7.1.1)

8) Installed Gapps...

9) Wipe cache/dalvik

10) Reboot to system

This worked for me.. and i am currently staying on LineageOS as i dont need fingerprint,heartratemonitor or 5ghz wifi..

Also after doing the above you can try flashing some other rom as well.. i havent tested whether it remains stable on any other rom or not..

I hope this solves your problem guys!

Update after 2 days!

The problem isn't resolved..

It still persists.

New theory:

That it all starts after the battery has drained below specific charge. For example my phone starts misbehaving after around 75%.. but i will be noticing it further for next 3 cycles.. and report back here..

Sorry for the above Solution if you went through that but that definitely is not the solution!
[Galaxy Note 4 Q&A, Help & Troubleshooting] Madnessx9:
My Note 4, after 3 and a half years started freezing and locking up like this. Funnily enough as the original posts mentions, removing he sim card seems to resolve the issue. going to try reformatting but seems i may have to replace the phone if going by the reports here. Shame because my upgrade is due in 6 months :(

Even freezes and locks up whilst using twrp and after flashing with an entirely new ROM. I think its safe to say something is wrong hardware wise.
[Galaxy Note 4 Q&A, Help & Troubleshooting] fat-lip:
Could it be another possibility that some apps installed are causing the said issue?

https://www.cnet.com/how-to/how-to-check-your-android-device-for-rogue-apps/

I downloaded Permission Dog and found out certain apps that had high permission levels, uninstalled them. Noticed that the said issue stopped for a while, used my phone as per normal, just that sometimes after the phone is keypad locked, the screen would go black and unresponsive when pressing all buttons.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Azurren:
Try removing the battery entirely and powering the device solely from the mains / power bank to completely rule-out any battery related problems.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Dwillian:
I have a noobie (to Samsung) question: how do you format the system partition? I would like to give that a try on my verizon note 4 (model SM-N910V).
[Galaxy Note 4 Q&A, Help & Troubleshooting] BluePhnx:
First Backup your data first to pc!!

Second you got to have TWRP or CWM recovery installed.

Third Then make sure you have a backup of current rom or new custom rom you want to try on ext sd card and make sure you back up your data (pictures, music, etc...)to pc first. This is a VERY IMPORTANT STEP to do! You can reflash stock firmware with odin as well if you want stock after step 4.

Fourth in TWRP recovery goto wipe and advance wipe and select system, data, dalvik and cache and swipe to wipe can try doing the wipe 5 times. (Optional you can wipe internal sd card too. WARNING this WILL DELETE ALL DATA OFF pbone!) So backup First.

Fifth flash custom rom or restart to download mode and flash stock firmware with odin.

edit took out root not necessary to have. I think.

edit 2 This will trip Knox and void warranty (if you have any left) and no service center will fix phone if rooted (Knox tripped). So something to think about. If you're not rooted I would check Samsung service center to see if they can fix it or how much for them to replace the motherboard.

Anyway I wanted to add that in.
[Galaxy Note 4 Q&A, Help & Troubleshooting] setiss:
I did this and everything was good for a day or two and then the program errors and restarting came again. The only thing that keeps my phone alive is the wakelock app.

I am worried about how damage am I causing to the phone keeping the cpu awake constantly.
[Galaxy Note 4 Q&A, Help & Troubleshooting] 55drsa:
Wakelock is a fix for me so far, but why?

Wake lock (darken) on option 4 has brought my nearly-unusable note 4 back to normal function. Rebooted once today, and I noticed the wake lock app was off at the time. No idea why this works. I tried everything else previously - including wiping cache, replacing battery, and keeping the phone cool - I've emailed the developer, curious if this Wakelock fix provides any insight into what the underlying problem is.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Fit101:
Can someone please tell me where to get a replacement mother board for the Note 4 N910V (Verizon)? Thx
[Galaxy Note 4 Q&A, Help & Troubleshooting] Dwillian:
You can get used MB's through Amazon and E-Bay, but you run the risk of buying someone else's failing MB and you will need to install it yourself.

You can also buy supposedly new OEM MBs on AliExpress.com for around $75 (try here). I've never bought anything direct from China, so I'm a bit apprehensive about going this route. Again, you would need to install it yourself.

Your best bet may be to contact Samsung Customer Service (call 1-800-SAMSUNG). They tell me that they can replace the MB for about $130. I'm starting that process now.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Fit101:
Thanks Dwillian, I preordered the S8 and just found out I get a $240 trade in value for my Note 4, so this is too good of an offer to dump anymore money in the Note.
[Galaxy Note 4 Q&A, Help & Troubleshooting] 55drsa:
Thoughts from Wakelock developer (Darken)

”I don't really know, but I can guess. I would guess that in one of their ROM updates Samsung made a mistake or went overboard/too aggressive on battery saving measures. Possibly reducing the cpu frequency too aggressive. Once the phone goes into a low power state / battery saving mode / whateveritis, it can't get itself reliably out of that state again. Aquiring a wakelock that keeps the CPU awake will prevent the phone from entering that state.”
[Galaxy Note 4 Q&A, Help & Troubleshooting] Dwillian:
That seems like a really great trade-in price. When I looked into upgrading my Note 4 on VerizonWireless.com it said my Note 4 only had an estimated trade-in value of about $80. I would have considered upgrading too if mine was worth $240.
[Galaxy Note 4 Q&A, Help & Troubleshooting] Fit101:
They take it off the new phone price, so basically I get $10 off per month for 24 months. Here's the promotion. https://www.google.com/amp/deals.ki...ts-for-the-galaxy-s8-are-actua-1793866900/amp