Background:
- Sprint L720
- International unlocked with GSM SIM
After updating to a new 4.4 ROM (Slimkat) and NAE (modem only from the modem thread), connecting to anything other than EDGE causes, what seems to be, a modem crash. If I force "GSM only"/2G connection, it's stable with EDGE. If I try to connect to 3G, I see "3G" quickly flash on the status bar next to the signal indicator (I have full service), and then the whole mobile connecting drops and resets... then it goes back to having full service, but no data connection at all - until I got to mobile settings and set it back to "2G" and it goes back to stable EDGE.
I am overseas with the phone (it's fully unlocked and I got a strong H+ connection with the old CM ROMs at the same location), so I am wondering if it's an issue with the new 4.4 ROMs not supporting GSM? Perhaps some sort of baseband/modem mismatch? I also flashed NAE (modem only) as well when I did the ROM - I have since downgraded, but perhaps it isn't fully downgrading?
I applied the MF9 full one-click, no joy ... I did a factory wipe and applied the 4.2 factory image from SamMobile, no joy...
Looking at the logcat, I see something along the lines of an error for 'Mobile network type unknown: 0'...
Any help would be greatly appreciated - only having EDGE is driving me nuts, especially when my actual mobile network here is very fast..
Let me know of any information I need to provide - Thanks
Ok, update - I applied the MK2 modem and then NAE, as I saw someone else do because they said that the NAE file is missing some things... no joy
This all seems to have happened after applying the NAE modem-only file - Does SlimKat not support GSM? I don't think it's SlimKat, because, even going back to the fresh "Factory default" flash that I got some SamMobile, I still had the same issue..
Which leads me to what I think the problem is - the Qualcomm settings. Those seem to be persistent across all ROM restores, so how do I go about resetting the QUALCOMM settings to default? Is there something I can do with EFS Professional/CDMA Toolbox or something?
Mobile data was working fine before I tried rooting my phone
I had installed N9005XXUGBOB6_N9005OXXGBOB4_N9005XXUGBOA1 on my phone, Android Lollipop from Note 3 for a few days and decided to root it
However when I rooted it, at first apps were crasing and after that I reflashed the official firmware
After a day I reflashed the twrp 2.8.6.0 recovery on my phone and installed via twrp SuperSU 2.46
Later on I tried to connect to my mobile data. I had enough to connect to my cellular provider but it wouldnt work
Reflashed to stock it still would not work
Called the customer service hotline of my provider and they gave me the settings for my phone as well as APN settings
Still, the mobile internet indicator would not show
On my phone status it displayed:
Service State
Mobile Network Type: Unknown
Voice: in Service/Data: Out of Service
Mobile Network State: Disconnected
skg13 said:
Mobile data was working fine before I tried rooting my phone
I had installed N9005XXUGBOB6_N9005OXXGBOB4_N9005XXUGBOA1 on my phone, Android Lollipop from Note 3 for a few days and decided to root it
However when I rooted it, at first apps were crasing and after that I reflashed the official firmware
After a day I reflashed the twrp 2.8.6.0 recovery on my phone and installed via twrp SuperSU 2.46
Later on I tried to connect to my mobile data. I had enough to connect to my cellular provider but it wouldnt work
Reflashed to stock it still would not work
Called the customer service hotline of my provider and they gave me the settings for my phone as well as APN settings
Still, the mobile internet indicator would not show
On my phone status it displayed:
Service State
Mobile Network Type: Unknown
Voice: in Service/Data: Out of Service
Mobile Network State: Disconnected
Click to expand...
Click to collapse
Try this, go to setting-about device-untick report diagnostic info.
If the same try install custom rom example cm 12
Reflash modem .
Could be rooted with wrong file .
Current status- Note 3 running stock 5.0 Lollipop and root is unavailable. No Mobile Data connectivity
Model SM-N900T (Tmobile) Baseline - N900TUVUFO86
Story- Three days ago I updated from 4.2.2 to Lollipop 5.0 . Shortly thereafter issues appears such as not being able to set PIN security.
Factory resets didn't help. Re-flashing again with 5.0 (BTW, all done through Kies) resolved the issue but other issues appeared. Mobile data connectivity via Tmobile was lost. Couldn't select a Tmobile network- times out. APN is correct + all other settings. I downgraded the phone back to 4.2.2 hoping it would correct the issue but not. Still no mobile data connectivity. Tmobile in-store tech were no help. IMEI appears intact when viewed through *#06#- matches the back of the phone; however, when looking into the details (*#0011#) I see a IMEI FAIL CERT -4. Besides this issue everything else is perfectly fine.
My thoughts are the modem needs to be re-flashed via odin. I found one specifically for Tmobile Note 3 US (from around 2013) on this site. It's a BIN file which I've compressed to a TAR ( suppose I could flash the BIN using phone in odin too). I need some advice here if flashing this modem is the right thing to do. If not, any other suggestions?
Thanks
[ Suposed to do with installing microG Services Core & GsfProxy, FakeGApps from Xposed and MozillaNlpBackend.]
After following steps in this thread here where is not support to get the things back to previous state, my phone [G900M, Resurrection Remix v5.7.4 based on CM13, rooted]. Also I realized that is a threat for S7, but all apps seem to be standard.
Now phone shows the following issues:
1. Cellular Network Not Available... -Network State: Disconnected/ Service State: Voice: Out of Service/ Data: In service. Have data connection, SIM amd operator detected, not able to call or sed/receive sms
2. MAC Address changed to: 02:00:00:00:00:00 Means that something to anybody?
3. IMEI has changed in phone status. Plus there is no phone number
4. Cellular network switch and data switch are linked. That means if I Switch on one, the other is also on, but not possible to switch in different mode
5. LTE discovery app shows: Cell Radio State "connecting". It seems like the phone stucks on this step, not being able to get network
Done: Checked APNs (it doesn't let me add new ones)- are ok, Wiped- nothing change, reinstalled rom- nothing change, flashed model modem- nothing change.
Pending: Downgrade to stock rom (lollipop 5.0)
How can I know the EFS Partition is not affected? Could be that situations a signal of that?
Does a stock rom restore EFS in case of damage?
/efs was not affected, did you resolve the issue?
I am on Three (UK) and I now understand that wifi calling is a carrier feature and a phone purchased direct from samsung will not have this enabled.
I have found that you can flash carrier firmware to enable this but I have a few questions:
Can i do so without the carrier bloat such as a horrible boot screen and preinstalled apps?
Will this affect my Knox / android pay / secure folder access?
Is there any way I can flash the wifi calling functionality without a complete reflash?
Thanks
Does 3 have WiFi calling? I don't think so.
Unless it's new. I left them in Feb after many years to get Volte. There was no voWifi then.
The reason I ask is voWifi worked out the box on my unlocked BTU S8 with EE.
Volte did not and required me to flash the EE firmware. This works a treat. No knox trip, no branding or bloat, no AP or secure folder issues.
If you want supervoice, you will need to flash the firmware.
Edit - seems I was speaking bollocks, yes they have WiFi calling, called "embedded wifi" now. As said, with EE this worked out the box for me. Only needed their firmware for Volte.
Three does have voWiFi aswell as voLTE/vo4G (In select areas).
Call Three and make sure WiFi Calling is enabled on your account and then you should receive a carrier update adding the WiFi Calling option.
(Source: Method I used with Vodafone UK)
I though three used an app for WiFi calling? Or at least that was the only way I could get it to work when I was with them a few years ago.
Edit: I've just read that they have built in vowifi but only on certain handsets. Perhaps the s8 isn't supported as yet?
I did a chat with them, S8 is supported for voWifi it seems.
Here in Poland, phone with non branded system works with WiFi calling. There's setting in dialer options (three dots menu). After I toggled it on wifi calling started to work.
TIM purchased s8 here, flashed the h3g firmware and volte and WiFi calling both function.
Bloat is there (boot screen and m$ office).
No call to three required to activate, it just works as soon as the correct CSC is on the device
Sent from my SM-G950F using Tapatalk
Three's website does confirm the S8 is compatible for WiFi Calling.
Go into the Phone app, press the three dot's -> Settings and see if there is a WiFi Calling toggle, this is at the bottom of the list.
If WiFi Calling is not there, make sure you have the latest update installed.
Update via the following guide from Three themselves: (please add a :// after http and make sure there are no gaps as I am not yet allowed to post links): http support.three.co.uk/SRVS/CGI-BIN/WEBISAPI.dll/,/?New,Kb=Mobile,Ts=Mobile,T=Device,varset_pid=40031,varset_cid=40041,Case=EXT(EM114337)
I've literally just switched from BTU to H3G and WiFi calling appeared instantly during setup. I did have to use CSC rather than HOME_CSC, as the latter caused Odin to fail first time around. I have also confirmed WiFi calling and texts are working, which is a huge plus as the lab in which I work seems to block all mobile signal!
Did installing H3G also enable VoLTE?
Cheers
Thanks for the quick replies everyone! Wifi calling is enabled in my account (it worked on my iphone) but the wifi calling option is not there at all. (I've checked all guides, including the 3 dots then going into phone settings) I know there is an app but it is horrifc, calls often don't come through at all, the app requires a persistent notification and is a major battery drain. @goRt @foo25 - > did you guys follow a guide for flashing three firmware? Do you know of any way to avoid the carrier bloat / sim lock?
Thanks all!
I've just flashed the three firmware from the Samsung version. After flashing, inbuilt Wi-Fi calling just worked. Wi-Fi calling toggle also appeared in phone- 3dots- settings menu. 800mz band 20 LTE also started working after switching firmware which means an extra bar or two when band 3 LTE signal is low.
The only downside I could see is the three UK splash screen on boot. I haven't noticed any extra bloat apart from the three likes app which I uninstalled straight away.
The phone is not SIM locked by flashing the carrier firmware.
NGbod said:
I've just flashed the three firmware from the Samsung version. After flashing, inbuilt Wi-Fi calling just worked. Wi-Fi calling toggle also appeared in phone- 3dots- settings menu. 800mz band 20 LTE also started working after switching firmware which means an extra bar or two when band 3 LTE signal is low.
The only downside I could see is the three UK splash screen on boot. I haven't noticed any extra bloat apart from the three likes app which I uninstalled straight away.
The phone is not SIM locked by flashing the carrier firmware.
Click to expand...
Click to collapse
Sounds good!
Did you follow a guide? If so do you have a link?
Thanks
stewartie4 said:
Sounds good!
Did you follow a guide? If so do you have a link?
Thanks
Click to expand...
Click to collapse
I didn't follow a guide but there are plenty around for flashing stock firmware on the S8 or S8+.
I just downloaded the latest version of Odin, and then the latest three.uk firmware from Samobile. I unzipped the firmware then loaded each of the components into the relevant Odin section ie. CP into CP section AP into AP section etc. I made the mistake of loading the 'CP Home' firmware into the CP section of Odin which caused the flash to fail which required use of Samsung emergency recovery procedure. I did that three times before trying loading 'CP' part of firmware into CP part of Odin which worked fine.
stewartie4 said:
Sounds good!
Did you follow a guide? If so do you have a link?
Thanks
Click to expand...
Click to collapse
*Download latest odin
*download desired firmware. (samobile) and extract it.
*go to settings>about device>software info>tap build number 7 times until developer options enabled.
*go to developer options and enable USB debugging and OEM unlock.
*plug phone into pc and let it install the drivers.
*turn off phone and boot to download mode.
*open odin and click AP. Insert the firmware you just downloaded.
*odin options should be: auto reboot checked, F reset time checked, repartition UNCHECKED.
*connect phone to odin and it will say added. COM box will turn blue. Just click start and let it do it's thing.
The first boot up can take a short while.
Thanks to everyone for the detailed replies.
One more question: I use secure folder and plan to use android pay. My colleague told me that flashing a new firmware will trip knox which will render these features unusable.
Will flashing the official 3 firmware do this? I'm only flashing to get a feature as advertised (there's a lot to be said for iPhone's just "working" )
Thanks
stewartie4 said:
Thanks to everyone for the detailed replies.
One more question: I use secure folder and plan to use android pay. My colleague told me that flashing a new firmware will trip knox which will render these features unusable.
Will flashing the official 3 firmware do this? I'm only flashing to get a feature as advertised (there's a lot to be said for iPhone's just "working" )
Thanks
Click to expand...
Click to collapse
Aslong as you flash official samsung firmware then knox will not be triped as its signed by samsung. Knox only trips when flashing twrp, root or any custom roms.
Before you start, do you have the option for wifi calling in phone>settings right at the bottom?
Like this
Hi all i have flashed my btu s8 to h3g and i also have the wifi option in the menu and it works great, however i can't find the volte option anywhere and i have never yet seen the symbols for it on my status bar.
When i had my old btu s4 i also flashed that to h3g and i remember the volte symbols showed up in the status bar.
So do i need to do anthing to activate volte?
CapricornDog said:
Hi all i have flashed my btu s8 to h3g and i also have the wifi option in the menu and it works great, however i can't find the volte option anywhere and i have never yet seen the symbols for it on my status bar.
When i had my old btu s4 i also flashed that to h3g and i remember the volte symbols showed up in the status bar.
So do i need to do anthing to activate volte?
Click to expand...
Click to collapse
Hi there,
There is no option for volte, if your network supports it then it will automatically be on where ever you have 4G signal. There is no option in settings but the icon looks like in the screenshot