yashsingh1/xdaforums huggingface dataset:
[Galaxy Note 4 General] kazbluesk1:
Just tried the safephone thingy, no joy.

Cant really send it back to Samsung, it was sent from Korea to Japan - just a nightmare to sort out. Unless I can figure it myself it looks like I have myself a beautiful mp3 player. BUT. I havent given up yet!!!!!! I think the radio is ok.

When I go next to a DOCOMO shop it switches on and then recieves a signal till I get home (about 3 km away) that doesnt sound like a broken radio to me. I feel it is software based. What I want to do it somehow flash a completely different rom but the ones Ive tried have all failed (the 910 C attempts) . The only ones that go through on ODIN are the official updates for the SM N910L . Somehow I have to get round that, but I dont know how because Im new to this.

Anyway, ill keep trying and thank you very much for your help.
[Galaxy Note 4 General] iridaki:
You can't flash a firmware that is not for your model number and even if you could, it is very dangerous and will most likely cause bigger problems than the ones you have now!

Also, if it was a software problem, surely it would be solved with a factory reset and reflash.

If you bought the device from Amazon, you could contact them and ask them how you could get around to having it sent to a service centre.
[Galaxy Note 4 General] abdyasar:
Can sb make a factory firmware? There is a guide for this. Any N910L user needed for it. He will use odin to get factory firmware.

http://androidforums.com/threads/how-to-backup-firmware-from-kies-upgrade-process.458795/
[Galaxy Note 4 General] Manipur:
I don't deserve the $50 reward but I think I know why u r having this problem. And no! I don't have a fix for it.

You said your phone is a Korean model. And u live in Japan.

According to the note 4 manual, it's mentioned that you should first use a sim card of the country you bought the phone from.

The first 5 cumulative minutes of calls should be made from a Korean sim card for activation. Then after that you can use a sim of ur choice of any other country.

This may be the thing that's giving you this problem and I'm quite willing to bet on it.

Best thing is to take it to a Samsung service center.
[Galaxy Note 4 General] iridaki:
But it was working fine for the 7 weeks. The region lock is more of a continent lock anyway, so his phone should work anywhere in Asia.
[Galaxy Note 4 General] Manipur:
I'm from India and there's a small leaflet in the box that says I must activate the phone with an Indian sim card and first 5 cumulative calls should be made from it. Otherwise the phone may not work.

I really have no idea.

There's an xda member by the name of Dr. Ketan. He's quite prolific with the note series. Maybe U sud send him a msg.
[Galaxy Note 4 General] CodeNameRedNeck:
Unless Samsung changed something the region lock only applies if you change regions and only if you don't activate it (first use) in the region it was built for. If you activate the phone in the region it was built for by using it for five minutes or the first five calls whichever it is, then you can use it in any region. If you activate it (the first use) in another region it will forever be locked to that region but you can still use it in that region.
[Galaxy Note 4 General] iridaki:
That's pretty much what they do at Sammobile and other similar sites distributing official firmwares, so you won't get anything different than what you've already tried.
[Galaxy Note 4 General] JasontheKep:
I have an idea, go into settings and do a factory reset from within touchwiz. I know it sounds simple but can't hurt to try, also when the phone boots back up. Skip putting in your Google information, then hold down the power button for approx 45 seconds or until the phone shuts all the way off, now turn it back on, put in your info and let me know your results.
[Galaxy Note 4 General] abdyasar:
This guide will make a factory firmware for N910L. Sammobile dont share a factory firmware with you.
[Galaxy Note 4 General] kazbluesk1:
Hi I had a look at some of his posts and he does seem like a knowledgable chap. Unfortunately he says clearly in his signature that he doesnt accept person messages on problems unless it is specifically related to a thread he is posting. So I don't feel right about bugging him when he doesnt want to be bugged.

Thank you though.
[Galaxy Note 4 General] kazbluesk1:
I am able to get 910L firmware updates from kies and I also have 2 sammobile installs - a 444 kitkat 910L and a 501 lollipop 910L but installing these does not seem to solve any problem. I tried to do and emergence firmware recovery with kies but it wont let me do that (my device (for that) wont show up.

It is really frustrating. Thank you for your help.
[Galaxy Note 4 General] kazbluesk1:
Ive been thinking about your reply, I bought a data sim for this phone and have never actually made a call from the phone (other than skype and wechat) so ....

but I then come back to that it worked perfectly as soon as I put the sim card in for the first 7 weeks.....

and around we go..

Thank you for trying to help me.
[Galaxy Note 4 General] kazbluesk1:
Hi Abdyasar,

I tried your suggestion for about 4 hours last night but could not get kies to recognise (in emergency recovery mode) my phone. It just kept saying "not recognised or supported" (something like that). Even though just 2 minutes before it had re-installed official 910L 5.0.1 lollipop over kies.

Thanks for your help
[Galaxy Note 4 General] kazbluesk1:
This is the point I am at now (Im not giving up on this !! :) )

There are 3 things Im thinking.

1)I want to somehow get into the service menu to activate the NV Rebuild All at the moment I can only see the tab NV Rebuild, I cant activate it.

2) I want to somehow (safely) install a system that is

not

910L which actually works on my machine.

3) I'm optimistic because I dont think my radio/modem is broken. Because when I go near a DOCOMO shop I can get cell 3g 4g LTE for maybe the next 3 km back to my house (maybe 20 to 25 minutes in a car). And the phone must have handed me over to other cell towers in that distance. Also, when I spoke to the iijmio engineer /manager on the phone he could see on the computer in front of him that my phone was requesting service. So this suggests to me that it is some software in the phone that is not authorising the connection in some way. So if it is a software problem I think it can be solved.

There must be an answer !!! (??)
[Galaxy Note 4 General] :
have you tried a different sim from a provider?
[Galaxy Note 4 General] kazbluesk1:
No. I have tried 5 or 6 from iijmio (who use the docomo system) and I've tried 2 cards from docomo sales counters. 1 of them worked (though crashed a lot. The other didnt. There are 2 or 3 other providers but they wont let me use their cards to check.

I guess I could go and blow 40 dollars on a prepaid sim card..................

?? Why not!!

Ok Im off to do that now, bak in an hour !! :)

Interesting to see what happens...........I dont think it'll work, but if it does I'll be happy to send you that 50 dollars !!!! Keep your fingers crossed!

Ian
[Galaxy Note 4 General] kazbluesk1:
Went to the big Konan electric shop here and they only had contract sims so couldnt pick up a pay-as-you-go. I dont think it would have worked though. The main providers all over Japan of Data sims use Docomo as their base.

however , I have been thinking of something.

In my About, Status tab it says - Mobile Network State - Disconnected

Does this mean the provider disconnected me from the network or does it mean their is a setting chosen on my phone which has disconnected me?
[Galaxy Note 4 General] Jovan1997:
Can u go to settings, search for network? And choose it manual?
[Galaxy Note 4 General] iridaki:
Do you maybe have a friend who's local and will let you try their sim in your phone?

When it says that network is disconnected, it just means that network is unavailable, for whatever reason.
[Galaxy Note 4 General] Manipur:
One small suggestion...

What about switching to safe mode and scanning for network.?
[Galaxy Note 4 General] DaReDeViL:
I wonder if anyone got the 50 bucks ... [emoji14]

Envoyé de mon SM-N910C en utilisant Tapatalk
[Galaxy Note 4 General] kazbluesk1:
Sadly not yet :( . I just got back today from camping with my family for 5 nights. Nothing has changed really. I did notice though that while on the motorway for 5 hours I had 5 solid bars on the signal meter and then when I would stop and try a few different settings on the phone the signals would quickly drop to NO SIGNAL. Really strange!! And annoying! But I never acheived a data connection not even for an email..
[Galaxy Note 4 General] kazbluesk1:
Hi, I tried that but it made no difference, thank you anyway though.
[Galaxy Note 4 General] kazbluesk1:
Hi I do not get the last 2 screenshots that you show. All mine shows is the the access point names pane where i add a new name and details and that is it.

Maybe this means something.......?
[Galaxy Note 4 General] kazbluesk1:
I'l meet up with a friend this weekend who might have a sim thatll fit my phone and see.

Thank you.
[Galaxy Note 4 General] jinosong:
Please dial 319712358 and they will show you a box where you need to enter password then enter 0821. It's either that or one that starts with a 2. (Can't remember off-hand) Download Phone Info and fool around with it. You'll get there eventually. Codes differ for each variant. The code for the C or F variant will not work.

You have the LG Telecom version which is a *****. Next time you buy a Korean version, stick with the SK version.

When you get there, you can enable all LTE and WCDMA bands. It'll actually give a darn good international phone after that.
[Galaxy Note 4 General] kazbluesk1:
Jinosong Thank you for this. Ive never seen this screen before. Im going to try out all the options and let you know what happens.

Thanks again.
[Galaxy Note 4 General] Toss3:
That does seem weird. Did you already try a full firmware reflash using the .pit file? Seems like something is wrong with your firmware.
[Galaxy Note 4 General] jinosong:
The NV rebuild option should be there also.
[Galaxy Note 4 General] kazbluesk1:
Hi Toss3, I have reinstalled kitkat 4.4.4 2 or 3 times and lollipop 5.0.1 4 or 5 times by now, wouldn't this reinstall the firmware? If not, how would I go about installing the .pit file? Where would I download it from?

Thank you for trying to help.
[Galaxy Note 4 General] kazbluesk1:
Hi Jinosong,

This password page is saving me a lot of time. Thank you. I have tried resetting the bands and it still doesnt seem to want to get a signal. I'm looking for the NV Rebuild option but haven't found it yet. Any idea where i could find that?

When I look in the Debug Screen the only lines that jumps out at me as strange are where it says:

MM Cause /attempting to

GMM Cause 0 Deregistered-ATTEM

It says this for both LTE and WCDMA-GSM

??
[Galaxy Note 4 General] Toss3:
Yes that would definitely reinstall everything. Could you take a screenshot of what you see when you open the mobile connections screen under settings (settings -> more networks -> mobile network)?

I'd also try reinstalling the newest firmware one more time making sure you have the latest modem + BL as well. What's more you should flash the firmware from odin's CSC option (yes the whole firmware) as that will make sure it updates your csc to whatever is baked into your downloaded firmware. After you've successfully flashed everything you should see the device boot into the recovery in order to install the correct csc.
[Galaxy Note 4 General] kazbluesk1:
Hi, the last time I re-installed I reinstalled over kies. I have samobiles kitkat 4.4.4 installation file and I have samobiles 5.0.1 lollipop. When I re-install 5.0.1 using Odin could you tell me exactly what I need to do? Usually I just click the pda button find the file, load that up and then install it.

Here is the screen shot i got of the mobile network page:

[IMG="Mobile networks"]http://goo.gl/photos/882etmBSx1qGBLHF9[/IMG]

I'm on a friends pc, cant give screenshots sorry. Anyway, it just says:

Data network settings

Access Point Names

Thats it.
[Galaxy Note 4 General] Toss3:
Just press on CSC and pick the .tar file you downloaded (should just be one large tar). Then just press start, let it finish and wait for it to startup. You should then see the phone boot into recovery and install the CSC files within that tar.
[Galaxy Note 4 General] kazbluesk1:
So the big 1.6GB tar/MD5 file that holds the full lollipop installation you mean? And by selecting CSC it will just install the CSC files it needs. Is that the same with the Bootloader and the modem files?. I mean, by selecting the button (s) BL AP CP or CSC it will automatically find those files within the big tar file and install only what I clicked? I don't need to faff about on the net trying to find individual modem .bin files ?

Thanks again, sorry if I seem a bit dim, I've always used apple stuff before this, so it's new ground for me.
[Galaxy Note 4 General] Toss3:
It will install everything (no need to search for the individual parts), and change the CSC, so be sure to backup everything beforehand. Doubt it is going to make a difference but it is worth a try.
[Galaxy Note 4 General] kazbluesk1:
Also, when you said this :

"That does seem weird. Did you already try a full firmware reflash using the .pit file? Seems like something is wrong with your firmware."

Do you mean to say that I can push the big PIT button locate the big tar file and that will find the .pit file from amongst the rest too.?

Its just that Im a bit hesitant to push a re-partition button :)
[Galaxy Note 4 General] Toss3:
Nope pit-file is always flashed separately because of the risks involved (recreates the partitions), as it could brick your device if it fails. You could try that next if nothing else works, but if you have the correct rom/baseband and everything is working as it should, then I assume that it's a carrier/phone incompatibility issue. Could you check what bands the other phones in your hourse are using when they get a signal at home and post your results?
[Galaxy Note 4 General] kazbluesk1:
!

Maybe I will try that tomorrow then. I just push the PIT button and use the lollipop installation tar file, yes?

As for the carrier thing. It is strange, my sim card works on my children's phones and we are all on the same network. I had (and they have) good signal here in the house. Something just changed one night while I was asleep. It's weird. And REALLY frustrating!! I bought a pre-paid sim and exactly the same issue cant get a signal - even though I get 4 bars when driving down the motorway (no exchange of data though) it just keeps saying that "Your USIM is not authorised to use the DOCOMO network" even though it is and so is the new pre-paid sim. It's driving me nuts !!

Thanks for your help, I really do appreciate it.
[Galaxy Note 4 General] Toss3:
Just ry flashing the firmware using the CSC option first without the PIT-FILE, as that needs to be downloaded separately. Have you also checked that your IMEI is intact? *#0011# should show you if the carrier IMEI check is ok (when you have a signal).
[Galaxy Note 4 General] kazbluesk1:
Yup the Imei is ok, that doesnt appear to be a problem.
[Galaxy Note 4 General] Toss3:
And your APN settings are correct as well? Seems weird that it won't let you register on the network with just your phone. Try doing a complete reinstall with the CSC option in Odin and report back. Maybe your RIL got corrupted or something, and make sure the APN is set up correctly.
[Galaxy Note 4 General] devilxvergil:
what's the results when you try your children's sim card on your phone then ? seems a little unlikely that the phone's firmware will mess up over a night.
[Galaxy Note 4 General] kazbluesk1:
Hi, when I use their cards I get no signal bars just like with my sim. All our sims (mine included) work on their phones. I know it is weird. I know it is strange that it was working when I went to bed but had stopped when I woke up.

I'm going to try a totally new install using the CSC button again. But then I think it might be time for that PIT install method.
[Galaxy Note 4 General] Toss3:
Just make sure the phone boots into recovery after the install in order to install the CSC files. If not try another firmware. Please report back when you get the time to install everything.
[Galaxy Note 4 General] kazbluesk1:
Ok did all that, unfortunately everything is the same :(

Mind you one thing was different. The phone always went into an endless bootloop, and the only way to get out was by doing a factory reset..

I think it is time to try that PIT install method. The phone is unusable (except as an mp3 player) at the moment so I'm will ing to risk it.

Where can I download the PIT file and how exactly would I go about installing it?

kaz
[Galaxy Note 4 General] Toss3:
Doubt the pit-file is going to make any difference; it's mostly for people with partition errors (when odin firmware flashes fail). The next step would be to check your childrens' phones and what bands they are on when they are at home and check if your phone support the same bands (I assume that it doesn't and that's why you seem to have issues).
[Galaxy Note 4 General] kazbluesk1:
I think it supports them because it was working fine for 7 weeks and also when I'm driving o the motorways my phone shows a strong connection 4 bars (though no data comes through). I really appreciate your help, thank you. Frustrating that it didn't work.

Ok it looks like I have about reached the end then. The only thing I haven't been able to do is the NV Rebuild. I just cant find that button.

Does anyone have any other ideas?
[Galaxy Note 4 General] Shockwave71:
Have you ever checked the connectors of your Antenna inside your Phone? Maybe it became loose.......
[Galaxy Note 4 General] kazbluesk1:
Where would the antenna be?
[Galaxy Note 4 General] Toss3:
https://www.ifixit.com/Teardown/Samsung+Galaxy+Note+4+Teardown/34359

http://www.etradesupply.com/blog/how-to-take-apart-galaxy-note-4-in-10-steps/
[Galaxy Note 4 General] kazbluesk1:
Wooooooooowwww!

Errrrrrr maybe not!! I was sweating just watching those videos :) Thanks for looking them out for me though. I was thinking today that there cant be anything wrong with the antena because in the debug screen I can see that strength of the signals and they are in the 90s which is pretty strong (even though on the notification bar it just has a no entry type sign meaning no service). The sim company also said that on their end they can see my phone constantly requesting service but that something in my phone wont allow it.

Oh bugger it!! Ok I"ll have a crack at it tomorrow!!!!!!! Why not?

Thanks for the vids.
[Galaxy Note 4 General] kazbluesk1:
Tried it this morning, all looked ok nothing seemed loose. Thanks again.
[Galaxy Note 4 General] jinosong:
It's under UE / SYSTEM / SETTINGS.
[Galaxy Note 4 General] kazbluesk1:
Thanks Jinosong, but when I go there and push the NV rebuild tab nothing happens - it doesn't rebuild.

I've just about given up on this now. I have tried everything everyone has said and nothing seems to get my signal back. Samsung have no service center here in Japan, I cant send it to Korea to get fixed, the company that I bought it from dont want to know and Amazon dont want to know.

I think its about time to give up.

Sad because im certain its just a software issue.

Thanks again for your help though.

Kaz
[Galaxy Note 4 General] Mussels84:
the phone may not support the frequency used by your telco near your house. this is why imported phones are a risk.

not sure about where you are, but around here there are two major frequencies used exclusively by different carriers - you could try a different telco.

as a specific 3G example around here:

(I don't have 4G, so this example is 3G specific)

In the CBD area, we get 1900MHz and 2100Mhz 3G, with 850Mhz and 900Mhz covering the longer distances.

My mother had a phone from Telstra (uses 850/2100) that supported 850/1900/2100

She used a SIM card from Optus (uses 900/1900) while living in the CBD area and things were great since she had 1900Mhz coverage.

As soon as she left the CBD and when she eventually moved out of town, her working phone would lose all signal. she still had bars in the unsupported 850Mhz areas, but no service/no data, since that would have been roaming and cost her a ton of money.

It's possible you've got the same situation, and that if you had working signal for a while an older tower may have been decommisioned since the area is covered by another frequency (possibly for a 4G/LTE upgrade)
[Galaxy Note 4 General] kazbluesk1:
Ummm you might be right. I was getting signal all the way into Tokyo for 7 weeks though, seems unlikely they would all be decommissioned. Who knows though. To be honest. Im resigned now to it being a very expensive iPod - sucks but there seems no alternative.

I could buy an old 4s iPhone and tether it I guess...................
[Galaxy Note 4 General] Mussels84:
Any chance you could google what 3G/LTE frequencies the telco you're using supports? we could match them up with the model phone you have and start with that.
[Galaxy Note 4 General] kazbluesk1:
Hi,

From memory (checked a few days ago) DOCOMO use 2100 3G and LTE is band 1 and 5.

I have switched up and down the bands but my phone wont connect, although an app on my phone does show that it can actually receive the signal. At present I have switched everything back to automatic. ( was playing around with the bands thats why in the the case of this photo it shows Softbank rather than DOCOMO)

A couple of weeks ago I was sitting on a train going to Tokyo and the phone connected to DOCOMO HSPDA (?) and I managed to send a single email then it closed down again. I get the feeling that all the hardware on my phone is OK but that there is some software inside that has been corrupted and that stays corrupted even after I reinstall new custom or stock roms. I am guessing now that the problem must be the EFS folder. My IMEI is correct though. Can your IMEI be correct but you still have a corrupted EFS folder? If so, I wonder how I can completely renew my EFS folder?
[Galaxy Note 4 General] Mussels84:
your EFS/IMEI is good. 2100 is a short range, high speed band and may well be the problem - no support for anything like 850 or 900Mhz?
[Galaxy Note 4 General] kazbluesk1:
There is an 850. I tried that and all the ones below including the LTE that that werent captured at the bottom of the screen

[IMG="pic"][/IMG]

The only one that seems to show a Carrier name DOCOMO and signal (shown on an app) is the CWDMA 2100 or Automatic (which would include 850).

It is very confusing.

I know that if I go and sit outside the DOCOMO shop, switch wifi off, I'll get signal bars at the top of the screen and be able to watch youtube and send send email over the DOCOMO network all the way back to my house (about 2 km). Then after a few minutes the no signal sign will come up again.

I just cant work it out.....
[Galaxy Note 4 General] Mussels84:
I googled it:

Docomo does

2G on 800Mhz

3G on 800/2100

LTE (couldnt find frequencies)

so basically, it matches what i guessed - you're only connected to the shorter range, high speed network. I cant find specifics on the 910L, but if its like the 910F or 910G you'll either need a carrier that supports 850/900Mhz 3G, or a different phone.

edit: heres a list from 2013 of carriers and frequency support in japan:

http://www.japanmobiletech.com/2012/03/japanese-mobile-frequency-bands.html

edit 2: if you have a carrier that works on your LTE frequency and supports calling over LTE (VoLTE or whatever they call it) then you might be able to use that.