[Q] New N900 has bad signal and "your device has been modified" update error - Galaxy Note 3 Q&A, Help & Troubleshooting

[Q] New N900 has bad signal and "your device has been modified" update error
Hello forum,
I am in the UK using a Virgin sim and my girlfriend bought this phone new in china and flew it over to me. At the moment the signal is really bad wherever I go (the same SIM card in my old galaxy nexus had great signal in all these places) so I was wondering if there was any way to make the signal better?
Also I tried to do an update through the settings menu hoping this would sort out the signal problem and it is giving me the "your device has been modified. no updates available for this device." error even though the phone is new.
the information about the device is as follows:
when I type *#1234# I get:
AP: N900ZSUBMI5
CP:N900XXUBMI2
CSC:N900OZSBMI2
In my "about device" within settings, the following is given:
Model number: SM-N900
Android version: 4.3
Baseband version: N900XXUBMI2
Kernel version: 3.4.39-1625296
[email protected]#1
Wed Sep 11 19:49:31 KST 2013
Build number: JSS15J.N900ZSUBMI5
SELinux status: Enforcing
If I reboot to recover it opens:
CWM-based Recovery v6.0.4.5
Compiled by Xiaolu(20131121)
When I try to check knox I cant see it (I go into odin mode and the top left just says the following):
CURRENT BINARY: Custom
SYSTEM STATUS: Custom
(I now understand the N900 doesn't have knox)
Thanks for looking, any feedback at all would be much appreciated :good:

Saml91 said:
Hello forum,
I am in the UK using a Virgin sim and my girlfriend bought this phone new in china and flew it over to me. At the moment the signal is really bad wherever I go (the same SIM card in my old galaxy nexus had great signal in all these places) so I was wondering if there was any way to make the signal better?
Also I tried to do an update through the settings menu hoping this would sort out the signal problem and it is giving me the "your device has been modified. no updates available for this device." error even though the phone is new.
the information about the device is as follows:
when I type *#1234# I get:
AP: N900ZSUBMI5
CP:N900XXUBMI2
CSC:N900OZSBMI2
In my "about device" within settings, the following is given:
Model number: SM-N900
Android version: 4.3
Baseband version: N900XXUBMI2
Kernel version: 3.4.39-1625296
[email protected]#1
Wed Sep 11 19:49:31 KST 2013
Build number: JSS15J.N900ZSUBMI5
SELinux status: Enforcing
If I reboot to recover it opens:
CWM-based Recovery v6.0.4.5
Compiled by Xiaolu(20131121)
When I try to check knox I cant see it (I go into odin mode and the top left just says the following):
CURRENT BINARY: Custom
SYSTEM STATUS: Custom
(I now understand the N900 doesn't have knox)
Thanks for looking, any feedback at all would be much appreciated :good:
Click to expand...
Click to collapse
Well it looks great. At least I can be sure that your phone shouldn't be a fake. It is of Hong Kong or Taiwan origin, Exynos, running 4.3 on N900ZSUBMI5.
You have CWM Recovery, Xiaolu's port of it. Hence that device was probably rooted prior to getting it handed over to your girlfriend. KNOX is only present on the MJ and onward firmwares, and you happen to be on an MI firmware so you don't have it activated yet.
Check the section for Network/Bearer and Wireless Connectivity on this link: http://www.samsung.com/levant/consumer/mobile-phones/mobile-phones/galaxy-note/SM-N9000ZKEXSG-spec
Match it up with your country's network specifications. There's a reason why these phones don't get sold worldwide, as they aren't all compatible with every region. Also remember to set correct APN values for your country.

nicholaschum said:
Well it looks great. At least I can be sure that your phone shouldn't be a fake. It is of Hong Kong or Taiwan origin, Exynos, running 4.3 on N900ZSUBMI5.
You have CWM Recovery, Xiaolu's port of it. Hence that device was probably rooted prior to getting it handed over to your girlfriend. KNOX is only present on the MJ and onward firmwares, and you happen to be on an MI firmware so you don't have it activated yet.
Check the section for Network/Bearer and Wireless Connectivity on this link:
Match it up with your country's network specifications. There's a reason why these phones don't get sold worldwide, as they aren't all compatible with every region. Also remember to set correct APN values for your country.
Click to expand...
Click to collapse
okay thanks for your reply, I believe the frequencies virgin use are 1800MHz and 2100MHz which can both be used with this phone. The APN settings were downloaded automatically when the phone was first booted and I also manually checked them and they are correct.

Saml91 said:
okay thanks for your reply, I believe the frequencies virgin use are 1800MHz and 2100MHz which can both be used with this phone. The APN settings were downloaded automatically when the phone was first booted and I also manually checked them and they are correct.
Click to expand...
Click to collapse
What is your network switch options in Settings?
Do you have it to HSPA/GSM (auto connect) set? [Sorry if it's not exactly the same, I don't have the N900 model]

My friend pointed this out to me just before I saw your message, the options available are only wcdma/gsm hspa isn't an option. Im guessing from my limited knowledge that this is the problem, what is it I would need to do to fix this? thanks again.

Saml91 said:
My friend pointed this out to me just before I saw your message, the options available are only wcdma/gsm hspa isn't an option. Im guessing from my limited knowledge that this is the problem, what is it I would need to do to fix this? thanks again.
Click to expand...
Click to collapse
Actually, I asked my friend who has the N900, he's reporting the same as you. So no problem in that.
There must be something else that can be isolated to find what's going on. You can try to upgrade the phone to the latest modem by flashing the latest 4.4.2 ROM.

Okay, what would be the best way to flash the latest ROM? Would this be a custom ROM or is there a way to get the official one? Thanks again.
Edit: I have now tried putting Dr Ketans rom on it, telling it to use the ROMs modem, and that still didnt fix the problem. I have also tried flashing some other modems from the GSM modems collection thread but the problems persist. The symptoms are as follows:
Frequently looses signal
only ever shows the E or G symbol for mobile internet connection (whereas on my other phone with the same sim it instantly gets full signal and shows H+ or 3G)
the phone has also never been able to lock onto a GPS location it only ever shows searching for GPS in the notifications bar.

Related

[Q] Help with my S4 "Only Emergency Calls"

Guys, i was follow a spanish s4 forum, cause' i got a problem with my S4.
I was looking for the best rom for S4, at what I found the Omega ROM. Excellent rom very stable and fast. Days passed and I was without service, could not call, and I can only do "emergency calls". I've tried everything, I've tried many ROMS both modified and original genuine Samsung, in my country and even my current carrier and get nothing, "Emergency calls only".
Important
* The IMEI of the box, the IMEI under the battery is the same when I press * # 06 #, therefore I have no IMEI problems.
** When I restart the phone, under the tab, and my operator name appears, only those 5 seconds I have signal, then the message "Emergency calls only"
Now I have this ROM *** Final Evolution (issued from HTCMania):
******* Android Version 4.2.2
******* Baseband Version: I9505VJUAMDE
******* Kernel Version: 3.4.55-Google-Edition ausdim @ dk # 13
******* State SELinux: Permissive (no idea what this is).
At this minute I get a gray screen with Yellow letters delivered me a description as shown in the attached image. Basically get:
PDA: I9505XXUBMGA
Phone: I9505VJUAMDE
CSC: I9505OXXBMG3
I've done everything to try to get my S4 subject so I'm willing to fix my problem
Does anyone have any idea what to do?
Do I have something wrong with the phone? Should be the same or equal semi stands for PDA, Phone and CSC?
I'm from Chile and sorry for the English caveman.
I will be grateful for your help!!
Thank you!
Did you buy the phone brand new? If not, it could be imei blocked
Sent from my GT-I9505 using xda premium
gregpot2000 said:
Did you buy the phone brand new? If not, it could be imei blocked
Sent from my GT-I9505 using xda premium
Click to expand...
Click to collapse
I was looking at a page of an operator in my country (Chile) which let me see if my S4 is blocked by IMEI. Corroborated with a friend who works in the same operator on my phone, and also the confirmed I had no problems with my old IMEI company nor had me locked (lock the phone you called Customer Loyalty)
Sorry again for my bad english

[Q] - i9507: No service on KitKat - Can receive calls, can't dial (no service)

Hi Guys,
I'm from Australia and recently bought an Optus Galaxy S4 4G. Strangely, the model number is i9507. I double-checked this online and usually weird model numbers are just carrier-spin-offs. So I went ahead to root and flash just like you would with an International i9505.
So far no problems - 4.3.x PA rom works absolutely fine.
BUT:
I've tried some Kit Kat roms recently and they all flash fine but give me 'mobile network not available'. Strangely though, I can receive calls/text and talk on the phone, but when I try to dial or send text messages, I can't do it. My reception bar is completely empty as well.
WiFi is totally fine, just no data and mobile network
I've tried messing with the 'network operators' setting and if i select my carrier (I have a Vodafone sim) I'll get network reception until I turn off the screen and then my mobile network becomes unavailable again
Not sure what the problem is; modem? APN? or roms not suitable for my phone?
Current info:
ROM - [ROM] KOT49H【4.4.2】 GOOGLE EDITION 4.4.2 by Danvdh, Kryten2k35 & Ktoonsez
Baseband - i9507XXUAMH2
Kernel - [email protected]oonsez-VirtualBox #1
I've been flashing for a while now but it's usually just basic stuff so you can probably tell I'm pretty amateur lol.
Any help is greatly appreciated!
Thanks =)
Richard
richard_huang70 said:
they all flash fine but give me 'mobile network not available'. Strangely though, I can receive calls/text and talk on the phone, but when I try to dial or send text messages, I can't do it. My reception bar is completely empty as well.
WiFi is totally fine, just no data and mobile network
...
Current info:
ROM - [ROM] KOT49H【4.4.2】 GOOGLE EDITION 4.4.2 by Danvdh, Kryten2k35 & Ktoonsez
Baseband - i9507XXUAMH2
Kernel - [email protected]oonsez-VirtualBox #1
Click to expand...
Click to collapse
Hi Rich
As your baseband is quite out of sync with the firmware you are trying to run (MH2 is from 4.2.2 ,,, right?) I would suggest you change your baseband (modem) flashing an equivalent to the ROM firmware from here.
I've got yesterday the exactly same behaviour when finally and reluctantly I've added a data plan. I was running a successful low-baseband + high-firmware because was setted to "GSM Only" (try it ... will work flawless). When I've switched to LTE got what you've described in the face too . I've promptly updated my baseband and now all is fine :angel:
EDIT: please do nothing of the above described BEFORE taking a EFS backup with every tool you can find and preserving them in several highly fortified locations and 2 or 3 K7 Tapes too . Have an ODIN flashable copy of your MH2 baseband is advisable too.
Hope I've helped and please share your experience.
Nice regards.
.
Hey thanks for the reply! Helps heaps =)
While I still had those roms installed I did try flash a few modems within Odin, all failed though =S
Which one should I be flashing?
I believe I tried XXUFNA1 but the flash just doesn't go through
Does it make a difference which rom I flash the new modem from? I.e. flash when the new modem now or flash the new modem on the kitkat rom?
I'm currently using Pacman 4.3.1 since it's perfectly fine. Just can't wait to get on a KitKat rom though! haha
richard_huang70 said:
Hey thanks for the reply! Helps heaps =)
While I still had those roms installed I did try flash a few modems within Odin, all failed though =S
Which one should I be flashing?
I believe I tried XXUFNA1 but the flash just doesn't go through
Does it make a difference which rom I flash the new modem from? I.e. flash when the new modem now or flash the new modem on the kitkat rom?
I'm currently using Pacman 4.3.1 since it's perfectly fine. Just can't wait to get on a KitKat rom though! haha
Click to expand...
Click to collapse
Hi Rich
Sorry, may be my fault, but quite didn't got your
You may proceed having the below as a rule of thumb:
Your baseband (modem) version should always match your ROM (firmware) version.
Failure to flash something is never good signal. As you have an i9507 (I own the 5) is very advisable to flash a modem built for your S4 flavour.
The above rule should apply to it too so, if the only modem available for the i9507 is the MH2 your firmware have to match or these issues reported will return.
Did you tested the "GSM Only" option to corroborate (or not) my hyphothesis? With this config, you should perceive no signal drops when waked. I know it isn't a viable operational mode but ... just for fun
Nice regards and keep sharing :laugh:
.

[Q] i9505 only getting G/E in mobile data indicator

hi guys im a new android user. i bought my i9505 galaxy s4 3 weeks ago and everything is working perfectly except the mobile data. i can only connect to E/G signals with it (which doesnt really do anything because i cant even check emails). its on LTE/3G/WCDMA/GSM(automatically) setting and the APN is the correct settings with the carrier in my country(philippines). i tried my sim on a different i9505 phone and it was able to connect to 4g so i guess the carrier/sim being the problem is ruled out. i have restored to factory settings/rebooted multiple times and am still unsuccessful. the phone's IMEI is not blacklisted or banned and it is intact(dont really know what that means but it shows a long series of numbers and im not really sure its safe to post it here). My carrier also supports the frequencies listed on what the phone has. i have not installed any custom firmwares and have not re installed any official releases.
i would really appreciate it if someone can help me fix this problem. could it be a software problem or a hardware problem(praying it isn't)?
my phone specs are
GT-i9505 samsung galaxy s4
android version:4.3
baseband:i9505XXUEMJ7
kernel version: 3.4.0-1765174 [email protected]#1 tue oct15 16:14:54 KST
Build number: JSS15J.I19505XXUEMJ7
SELinux: Enforcing SEPF_GT-I9505_4.3_0010
if you need me to put any more info just tell me
Go Settings > More networks > Mobile networks > Network mode > select WCDMA

[Q] Canadian Note 3 Help

Hello. Please forgive me for being a noob, but I'll do my best to be precise.
But, I decided to sign up and create a topic here because I need some specific help and/or clarification.
(Sorry if I am perhaps not in the correct place but my brain is numb from hours of reading all areas here)
The story:
Purchased used Samsung Galaxy Note 3 in Canada originally on WIND Mobile. Unlocked phone for use on TELUS.
After a month, the phone ended up getting blocked IMEI due to it being reported lost/stolen.
Purchased "IMEI repair" service with free SIM unlock and sent phone away to "Joe The Android Rooter" (androidrooter.com) based on other's similar experiences and praise.
Received phone back, IMEI good, phone in good working order.
The problem:
The Note 3 with manual APN settings via a phone call with Telus only has Network Mode options WCDMA/GSM (Auto), WCDMA or GSM only. Phone gets 3G signal. Slow data speeds are fine, but my text messaging and phone calls rarely work where I live, which is a rural area. Dropped calls, lost texts, or no service. My Samsung Galaxy S3 does LTE and never has an issue. I would prefer to have faster data and reliable network/modem mode.
Called Telus again, and was directed to this thread here: http://forum.xda-developers.com/showthread.php?t=2489766
Have been reading around here wherever I could find information, and I'm not totally confident or clear about doing that.
It is all a little confusing to me so I need some straight forward help. I would be forever in debt.
The questions:
According to that thread, I would have to follow all those steps to enable LTE on my phone. What do I need to ensure that nothing has been modified with the IMEI repair so I don't run into any problems?
I tried the step of using the dialer for *#272*[IMEI]# and it brought me the options, and the Telus one (TLS) is listed. Can I just make that change, and voila? Or do I have perform root, etc? I'm just trying to make this easy and from what I read, I shouldn't even have been able to bring up that option through the dialer in the first place?
This thread here: http://forum.xda-developers.com/showthread.php?t=2618684 made me second guess everything.
The phone information:
AP: N900W8VLUCNB7
CP: N900W8VLUBMJ4
CSC: N900W8OYACNB7
Model Number:
SM-N900W8
Android Version:
4.4.2
Baseband Version:
N900W8VLUBMJ4
Kernel Version:
3.4.0-859721
[email protected] #1
Thu Feb 27 17:06:41 KST 2014
Build Number:
KOT49H.N900W8VLUCNB7
SE for Android Status:
Enforcing
SEPF_SM-N900W8_4.4.2_0017
Tue Jun 24 18:55:11 2014
Security Software Version:
MDF v1.0 Release 2
Shows as Official.
I hope I have provided all the info and posted in the right spot and I am very grateful for whatever help and clarification I could get.
Sorry for the length, but thanks for taking the time to read it.
-Adam, Canada.
You just have to do the 272 code to switch to Telus... You should have lte after that. But beware, this will completely reset your device... You will have to reconfigure it from scratch.
You might as well upgrade it to the latest firmware... Your baseband should be nb7 also... Or ni1 if you use the latest videotron firmware to manually upgrade. To your will still have to change the csc (272 code) to get the correct config from r Telus
Envoyé de mon SM-N900W8 en utilisant Tapatalk
Resetting isnt an issue or anything. My main concern is doing the code/csc change, still being able to do OTA updates, or at least over Kies. I'm happy enough sticking with OTA and TouchWiz and not toying around with the phone otherwise.
I've rooted (and loved) all my devices in the past (HTC, Motorola, LG) but had such a problem with my Galaxy SIII and when I tried to root it, not only was it the most difficult, but it turned it into a nice paperweight.
I got a good deal on this phone and like the size is all.
Mr3ff said:
Resetting isnt an issue or anything. My main concern is doing the code/csc change, still being able to do OTA updates, or at least over Kies. I'm happy enough sticking with OTA and TouchWiz and not toying around with the phone otherwise.
I've rooted (and loved) all my devices in the past (HTC, Motorola, LG) but had such a problem with my Galaxy SIII and when I tried to root it, not only was it the most difficult, but it turned it into a nice paperweight.
I got a good deal on this phone and like the size is all.
Click to expand...
Click to collapse
If you change the csc with the 272 code, you shouldn't have any trouble doing ota updates. All stock Canadian roms are exactly the same... You can download and install a bell rom on a Rogers device and retain your Rogers apps/config. Only the csc is changing... And this csc is there to reconfigure your device for the specific provider.
Worst thing worst, you will have to manually download and install the latest stock rom with Odin... And after that, you will be fine. But I really doubt that you will have to do this.
Well thank you!
I backed up the phone with Kies just to save my settings and simple stuff so I wouldn't have to do it again manually, but I don't mind doing it again if I have to.
Used the code to change the CSC, rebooted, LTE is working fine. Texts+calls all function like they used to without dropping my signal and stuff.
Just using Kies to restore little stuff and I'm good.
I checked to see if I have root, which I don't. What I wonder is why everything I read told me I shouldn't have been able to simply dial that code and change the CSC without rooting? I have seen a number of people having similar issues, but if it really was this simple without root, why is it not clear that you simply just need to do this? Heck, even Telus told me to root the phone. I didn't expect that.
Mr3ff said:
Well thank you!
I backed up the phone with Kies just to save my settings and simple stuff so I wouldn't have to do it again manually, but I don't mind doing it again if I have to.
Used the code to change the CSC, rebooted, LTE is working fine. Texts+calls all function like they used to without dropping my signal and stuff.
Just using Kies to restore little stuff and I'm good.
I checked to see if I have root, which I don't. What I wonder is why everything I read told me I shouldn't have been able to simply dial that code and change the CSC without rooting? I have seen a number of people having similar issues, but if it really was this simple without root, why is it not clear that you simply just need to do this? Heck, even Telus told me to root the phone. I didn't expect that.
Click to expand...
Click to collapse
You never have to root a phone to change the csc when the target csc is already included on your rom... Which is the case for the Canadian version of the note 3... It contains all csc for all Canadian providers (at least those that are selling it). And I think it's the same for all recent Samsung devices...
I believe You need root to change csc when the csc you want to use is not in your rom and you want to flash an other rom that includes the new csc.
tprevir had
How come then, such as on that thread here that initially sparked my willingness to do all this, was it not simply mentioned in there that one could just use the code and make the change, without having to deal with all the rooting/etc?
Of course rooting has many benefits, but some may just simply need the carrier/radio switch to enable LTE and nothing more - such as myself. (I'm okay with stock because of the S-Pen, but I am certainly considering rooting the device down the road, once it becomes "stale" to me)
As stated in http://forum.xda-developers.com/showthread.php?t=2489766 "Have a Samsung Galaxy Note 3 (model: SM-N900W8) and wish to enable LTE for a specific carrier? Follow these in-depth instructions and you will enable LTE for this specific model." which was the most comprehensive thing I could find via Google, but it really did make me wonder if it was all truly needed, to which it was not.
probably no one know at that time that all Canadian Note 3 were using the exact same rom...
that being said, not all SM-N900W8 are the same... this model is also used in other contries... so if one had bought it somewhere else, he would need to do more things to finally get LTE and/or the correct carrier apps.
The thread is from April... and at that time, I just had my device for a few days... and I did not know that we could only change the CSC to switch the configuration for an other provider. I learned a lot by reading on this subject here and there.
Envoyé de mon SM-P900 en utilisant Tapatalk
Maybe i'm wrong but i noticed you have NB7 Rom but MJ4 baseband and your problem is probably here. I bought a used note 3 and it was in the same condition. i wasn't getting LTE. If you try to upgrade your phone via ODIN, you have to go to download mode by powering off the phone first . If you go to download mode by any other way the modem partition is protected and will be not updated. I've reflashed the entire Rom and now i have NB7 baseband and NB7 Rom and i'm getting LTE with fido. Hope this helps!
Tornade69 said:
Maybe i'm wrong but i noticed you have NB7 Rom but MJ4 baseband and your problem is probably here. I bought a used note 3 and it was in the same condition. i wasn't getting LTE. If you try to upgrade your phone via ODIN, you have to go to download mode by powering off the phone first . If you go to download mode by any other way the modem partition is protected and will be not updated. I've reflashed the entire Rom and now i have NB7 baseband and NB7 Rom and i'm getting LTE with fido. Hope this helps!
Click to expand...
Click to collapse
That's what I was concerned about at the beginning (NB7 & MJ4) but my solution was to quickly backup what few things I wanted to keep from my phone (a few pictures, contacts, settings) and then do the *#272 code and select Telus. Once it rebooted, everything worked good as new. In fact, my up/down speeds are through the roof compared to the SGS3 that I had previously and for whatever reason the quality of sound in phone calls are dramatically increased. Like AM radio to FM.
Either way, doing that code, nothing else had to be done on my phone - no rooting, no tinkering and no hassle - other than entering the code and selecting Telus.

Ebay phone: Need some help understanding this OS and how to upgrade

Hello,
I am new here but I have been reading ALOT. I purchased a Samsung Galaxy S5 SM-G900P off ebay and it came rooted with Kitkat 4.4.2 installed. Although it works fine in Canada in general, it's been causing me a TON of headaches. The biggest problem is roaming...I have the "you have lost data connectivity because you left your home network with data roaming turned off" error, which no one seems to have a solution for online. Sim cards in the US didn't work at all but my Canadian one is fine and no issues in Central America, so it is a good travelling phone in general. There are a ton of Chinese characters that populate the phone.
So I'm wondering what the best step would be for flashing a new ROM? How do I do a ROM backup on a phone that is already rooted? Is it safe to install recovery onto the phone? Is there some way to tell if one is already installed? Basically I would like to flash one of the custom Lollipop or Marshmallow ROMs, but above all I need to fix the roaming issue ASAP.
Phone info provides the following:
Phone Model: SM-G900P
Device Type: klte
Product Name: klte
Country of origin: not listed
Original CSC Code: CHN
Firmwares CSC Code: <root required>
Active CSC Code: CHN / TGY
CSC Country: USA/CN
Bootloader/PDA/CSC/BASEBAND version: G900PVPU1AND2
Root Existance: Yes
Android Version: 4.4.2
Any help on some steps to backing up/flashing and upgrading to Lollipop would be fantastic. The tricky part is understanding what has been done to the phone and what I can do to not screw it up lol.
Cheers!
Which model does it say in download mode?
Volume Down & Home & Power (From powered off state)
*Detection* said:
Which model does it say in download mode?
Volume Down & Home & Power (From powered off state)
Click to expand...
Click to collapse
It says SM-G900P. I believe it is this model, as the seller advertised it as this. He was selling them new and explained that they had been rooted and unlocked and should work in any country.
Thanks in advance for any help, it's much appreciated!

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