Database Users

No data connection after rooting to custom rom (Darky's v5.6)

I'm new to flashing custom roms and what not. I used odin and flashed everything to the point, csc, modem,pda,pit the rom works awesome but i cannot for the life of me connect to the internet. the 3g icon or h icon wont' show up. in the status it says my network type is gprs and i'm roaming and my mobile network state is disconnected.
I'm with fido, the phone is unlocked i have never had trouble with data or anything until i flashed to a custom rom.
Anyone have the same problem or suggest how to fix?

Data Conn. Issue
Hey mate,
Have you gone into 'Settings', 'Wireless and Networks', 'Mobile Networks' and then 'APN settings' and entered your appropriate settings?
That should fix it if you define the correct access point.
Alex

hey man, yeah i did all that stuff, went in there, found my carrier, put in all the apn settings i can find and still nothing. when i put data roaming on then i get data and the edge icon comes up.

Hey dude,
That sounds strange, flashing custom (or even release) roms is never a guarantee especially with weaknesses in the way that ODIN communicates with your phone, What I would do is Re-Flash your stock rom through ODIN then use the "quick" install method from Darkyy.
I am running 5.6 like you, and I had issues doing it through odin (I kept getting random FC's), additionally, the rom; if installed from CWM will keep your apns and apps e.t.c. along with many settings and configs from the base rom you're using before the flash.
That is the best advice I can give you.
Alex
My config is a follows:
I9000 International
16gb SDHC
500HZ Hardcore Kernel
Darkyy 5.6

Whats the process for reverting back to stock 2.1 eclair rom?

Did you keep a record of your firmware version before reflashing?
If not, you may have to ask someone on here what your base firmware was.
Are you familiar with using ODIN? (The software used for reflashing)
Alex

I am having same issue to...I used 5.4 from Darky and it works well...same with DocRom 4.0 works and the next 5.1/6.0 don't work.
Both Darkys and DocRom are based some JPX....which seem to be root cause..

I've have the same problem. Tried eveything but still didn't work. So went to Samsung Service Centre to have my SGS firmware refresh. I notice after the refreshed same issue of data com missing. Told them and they when into the SGS to select the telco operator setting selection. Now data com. working well. Anyone know the SGS handset setting code? I want to reload to Darky's v5.6 again.

hi folks
i have the same problem... my provider is a virtual provider in the network of our biggest provider here in austria. i was using doc's rom based on xwjpa firmeware and everything worked fine without enabled roaming options.
since doc's rom is based on the newer releases (xxjpx, xxjpy) i' only able to use data connection if i turn on roaming. it also shows me that i'm in a roaming network. i guess the cause are the xx firmwares. xw and xx are european firmwares but i do not know the differences between them. maybe someone has more information about the differences? currently i'm using xwjpa firmware because i don't want to use my phone with enabled roaming options.

hey um i'm having the same problem and thought replying here would be better than starting a new thread.
well i installed the rom without having any idea of what i was doing *stupid idea* so i didn't take note of my original firmware.
i didn't use odin to install the rom just clockwork recovery and the rom and everything installed fine except my data network. i can get signal, call, receive the only problem is i get no data transfer. any help much appreciated. if anything can someone help me step by step to reboot my phone to original?

just for future travellers
Sadly this isn't my own gem, but yeah. hold the power button down, wait for the shutdown menu, above the airplane mode there is a data network button, and it'll most likely say "de-activated" if nothing else has worked. Its ok to feel like a chump, I did after rehashing the hell out of this phone for a few days ( the wifes phone, my phone does exactly what its told. )
Anyway, yeah, this will probably be the reason for the lack of the icon "G", "3G" or "H" where it should be.
Dave.

GT-i9505 No mobile network/data after flashing custom ROM

Hi guys been searching all day when I can grab some free WiFi, basically I rooted my s4 gti9505 with auto root and then installed custom recovery, and flashed PAC rom. I'm unable to make calls or receive mobile data but can use WiFi. My settings say baseband unknown .. I'll attach a picture of my settings here in this thread. I have attempted to flash a modem/radio in Odin but this didn't seem to make any difference, the problem is I'm not sure if it was the right thing to do (didn't make a back up of my phone foolishly before flashing PAC rom)
I'd appreciate any help with this guys! My network is vodaphone UK if that makes any difference to any advice given...
Thanks in advance!
Sent from my GT-I9505 using xda app-developers app

somepepe**** said:
Hi guys been searching all day when I can grab some free WiFi, basically I rooted my s4 gti9505 with auto root and then installed custom recovery, and flashed PAC rom. I'm unable to make calls or receive mobile data but can use WiFi. My settings say baseband unknown .. I'll attach a picture of my settings here in this thread. I have attempted to flash a modem/radio in Odin but this didn't seem to make any difference, the problem is I'm not sure if it was the right thing to do (didn't make a back up of my phone foolishly before flashing PAC rom)
I'd appreciate any help with this guys! My network is vodaphone UK if that makes any difference to any advice given...
Thanks in advance!
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
flash MGA modem twice with odin (first time do not tick "auto-reboot", when it "pass" remove battery, insert it flash second time)
This things happend when people move from old baseband to new baseband

samersh72 said:
flash MGA modem twice with odin (first time do not tick "auto-reboot", when it "pass" remove battery, insert it flash second time)
This things happend when people move from old baseband to new baseband
Click to expand...
Click to collapse
hi thanks for your reply, i have just flashed the MGG modem trying to fix it myself but when i reboot myself manually it just hangs on the samsung boot logo for ten minutes..i will try your method with the MGA modem and hope it works
thanks

somepepe**** said:
hi thanks for your reply, i have just flashed the MGG modem trying to fix it myself but when i reboot myself manually it just hangs on the samsung boot logo for ten minutes..i will try your method with the MGA modem and hope it works
thanks
Click to expand...
Click to collapse
and reflash the custom rom after flashing the modem

samersh72 said:
and reflash the custom rom after flashing the modem
Click to expand...
Click to collapse
will do this too, have just finished flashing MGA modem twice using your steps, will flash rom again..i wonder if i should wipe/factory wipe as i would when installing new rom...ill try it!
no luck -still no network. im running out of ideas
network - unknown
mobile network type - unknown
imei unknown
imei sv - unknown
going out now for a while but thought id ask - do you think that installing official stock rom (perhaps from your s4 unrooting guide) would help flashed via odin? from searching i can see that some folk suggest that stock will reinstall everything i need...im hoping so, i really wouldnt mind going back to stock, anythings better than this

somepepe**** said:
will do this too, have just finished flashing MGA modem twice using your steps, will flash rom again..i wonder if i should wipe/factory wipe as i would when installing new rom...ill try it!
no luck -still no network. im running out of ideas
network - unknown
mobile network type - unknown
imei unknown
imei sv - unknown
Click to expand...
Click to collapse
did you put modem in "phone" in odin?
hmmm weird! i guess your imei is not corrupted, sometimes while flashing rom in cwm, efs partition is not detected, so flashing modem twice should work
you can try with an other modem, use new one (but im sure to flash it twice)
another option is trying to flash your stock firmware

samersh72 said:
did you put modem in "phone" in odin?
hmmm weird! i guess your imei is not corrupted, sometimes while flashing rom in cwm, efs partition is not detected, so flashing modem twice should work
you can try with an other modem, use new one (but im sure to flash it twice)
another option is trying to flash your stock firmware
Click to expand...
Click to collapse
yes put it in "phone" mode, thats the second or third one i have flashed now so im not sure it wont help but for sure ill try again!
are you able to determine that its not corrupted? would it state as such if it were? im going to flash a stock firmware as a last resort. lost after that haha
edit - installed cwm using sgs4 flasher and re-installed my custom rom and gapps, booted no probs and network now working - sorted!! thanks for your help i dont think i would have reflashed the rom without your advice to do so

So I'm practically in the same boat. I'm currently on P.A.C. man nightly 09/18 (Vodafone Germany branded device). I never had similar problems, but now I can't call (or be called) and I'm not able to use mobile data.
I nearly tried everything:
1) I checked the IMEI (saved it before switching over to custom roms), but an IMEI number is still there.
2) Went back to stock to see if it's a problem of P.A.C. man ROMS or not. On stock it didn't work either.
3) Went back to P.A.C. man ROM and flashed modem XXUBMF8 via Odin 3.04 (from this thread: http://forum.xda-developers.com/showthread.php?t=2192025)
4) Flashed the modem again after I flashed the ROM because it didn't work either.
So I'm completely lost now, I really don't know what to do next. I had mobile data for a couple of seconds every now and then, but nothing stable. And since the problem came up (yesterday evening) I can not make any calls at all.
Can someone help me?
Edit: The very strange thing is that I have full reception balks in the notification area (only in grey). But still, I guess this means that the device is somehow able to detect a signal but can not connect to it?
Edit2: I apparently have no Device-ID. May that be a problem?

So I took some screenshots to show you guys my problem a bit better. For some reason my mobile data now works (currently HSPA, but it's extremely slow). But I still can't make any calls (or get called too). =/
Edit: So to sum this up: the strangest thing about this problem is, that even when I go back to full stock I can't make calls. =/ What could be the problem? An IMEI number is present in the settings (althouh the 'IMEI SV' under 'About phone' --> 'Status' was one digit below the current one that I can see under those stats). The whole problem makes me believe that my provider can't sort my phone number to my device (I'm on Vodafone; but if that's really the case: why the hell does mobile data works sometimes?!). The other possibility: something with the modem/radio is broken. Could this be the problem? The thing is that I also tried to flash a custom modem, but the problem is still there...
I'm really concerned that my phone just became an expensive paperweight

Slightly different than my problem in that I didn't even have any bars for reception..my problem was fixed by changing the custom recovery software (originally I used philz to flash PAC), But I flashed cwm and then used this to again flash PAC, and all was good..don't ask my why but it helped me so you might want to try this...
Sent from my GT-I9505 using xda app-developers app

somepepe**** said:
Slightly different than my problem in that I didn't even have any bars for reception..my problem was fixed by changing the custom recovery software (originally I used philz to flash PAC), But I flashed cwm and then used this to again flash PAC, and all was good..don't ask my why but it helped me so you might want to try this...
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
Thank you for your answer!
You also flashed a different modem didn't you? Did this help or was it only the custom recovery? I'm confused because I used CWM before and never had problems. But then this mess all came up...

Yes I flashed several modems, that didn't help..only using a different custom recovery to flash my custom Rom again helped..hope you get sorted!
Sent from my GT-I9505 using xda app-developers app

So I tried to flash PAC with TWRP 2.6.0 (it worked before), but the problem is still there.
I'm really confused. I really don't know what I can do or try to fix this mess... Is there some USSD code or something to find out if my device is missing some ID codes or if the modem is messed up or something?
Edit:
Update: For some reason I now can receive calls/SMS but only when I'm on GPRS speed. Outgoing and ingoing calls are no problem then. When my device is on HSPA or HSPA+ speed however, the old problem of not being able to call or be called is back. On one hand it's good that I'm somehow able to make calls again on the other hand it gets stranger and stranger. I know that it's a bug on PAC man ROMs that you can't change the mobile data speed options (LTE/HSPA/GPRS etc.), but I think that this could be the problem (or at least a part of it)...

Gotcher said:
So I tried to flash PAC with TWRP 2.6.0 (it worked before), but the problem is still there.
I'm really confused. I really don't know what I can do or try to fix this mess... Is there some USSD code or something to find out if my device is missing some ID codes or if the modem is messed up or something?
Edit:
Update: For some reason I now can receive calls/SMS but only when I'm on GPRS speed. Outgoing and ingoing calls are no problem then. When my device is on HSPA or HSPA+ speed however, the old problem of not being able to call or be called is back. On one hand it's good that I'm somehow able to make calls again on the other hand it gets stranger and stranger. I know that it's a bug on PAC man ROMs that you can't change the mobile data speed options (LTE/HSPA/GPRS etc.), but I think that this could be the problem (or at least a part of it)...
Click to expand...
Click to collapse
Actually I can change the data in my phone between 3G and 2G (don't have LTE support here in my country)
Have you checked your APN? Think that might be a problem.
Also please post the steps you take before flashing PAC (ROM, kernel, recovery, etc)

soyusado said:
Actually I can change the data in my phone between 3G and 2G (don't have LTE support here in my country)
Have you checked your APN? Think that might be a problem.
Also please post the steps you take before flashing PAC (ROM, kernel, recovery, etc)
Click to expand...
Click to collapse
Within Wireless & Networks --> Mobile Networks --> Network Mode? On PAC? It always crashes when I try to change something there. In the PAC bug post this seems to be a known bug, my mode is also set to GSM/WCDMA/LTE. But whenever I enter the settings to change this, only 'LTE' is chosen as option. I don't have LTE on my plan and I read somewhere else that Vodafone has major problems with it's LTE network here in Germany and that it may be better for customers without it to turn it off.
About APN: there is definitely something strange. I can enter the settings and I see three different APNs that were not created by me (they must be the standard carrier ones): they are called Vodafone DE (for Germany), 1und1 (pretty strange because the settings are the very same on this one, only the name is different) and Vodafone DE-MMS.
The strange thing now is that I can't change any value of the Vodafone DE APN... When I go into its settings, everything ia greyed out. This was the same on the stock ROM...
Now when I create a new APN with the correct provider settings (found via Google on the VF homepage), the phone still won't work. When I put the device aside for a few minutes, the Vodafone Deutschland DE APN is the selected APN again although I never went back to it...
Is there some option to take a deeper look into the modem stats to see what's the problem?

Install stock ROM
Gotcher said:
Within Wireless & Networks --> Mobile Networks --> Network Mode? On PAC? It always crashes when I try to change something there. In the PAC bug post this seems to be a known bug, my mode is also set to GSM/WCDMA/LTE. But whenever I enter the settings to change this, only 'LTE' is chosen as option. I don't have LTE on my plan and I read somewhere else that Vodafone has major problems with it's LTE network here in Germany and that it may be better for customers without it to turn it off.
About APN: there is definitely something strange. I can enter the settings and I see three different APNs that were not created by me (they must be the standard carrier ones): they are called Vodafone DE (for Germany), 1und1 (pretty strange because the settings are the very same on this one, only the name is different) and Vodafone DE-MMS.
The strange thing now is that I can't change any value of the Vodafone DE APN... When I go into its settings, everything ia greyed out. This was the same on the stock ROM...
Now when I create a new APN with the correct provider settings (found via Google on the VF homepage), the phone still won't work. When I put the device aside for a few minutes, the Vodafone Deutschland DE APN is the selected APN again although I never went back to it...
Is there some option to take a deeper look into the modem stats to see what's the problem?
Click to expand...
Click to collapse
Mate you should try installing Stock ROM that might help I think !

.::Alien::. said:
Mate you should try installing Stock ROM that might help I think !
Click to expand...
Click to collapse
I tried that already, but it didn't help. Same problem...
I factory resetted the phone, wiped cache and dalvik cache and then flashed my Vodafone branded stock ROM via Odin that I had on my device when I got it. Didn't help for some reason... But: should I also try to go back to stock ROM via KIES? I haven't tried this method until now...
Edit: About my flashing method: I went from the stock ROM to rooted (via CF Auto root with Odin). For PAC I then flashed TWRP 2.6.0 and then in recovery factory resetted the phone, wiped cache and dalvik and then installed PAC. After that I installed GApps. I used this method before and it worked without any problems...
Edit2: I found this thread, it appears to be the same/a similar problem with the S3: http://forum.xda-developers.com/showthread.php?t=1805709&page=6
Now is there something similar for the S4? I think I tried calling ##72786# on stock ROM and it didn't work...

Gotcher said:
Within Wireless & Networks --> Mobile Networks --> Network Mode? On PAC? It always crashes when I try to change something there. In the PAC bug post this seems to be a known bug, my mode is also set to GSM/WCDMA/LTE. But whenever I enter the settings to change this, only 'LTE' is chosen as option. I don't have LTE on my plan and I read somewhere else that Vodafone has major problems with it's LTE network here in Germany and that it may be better for customers without it to turn it off.
About APN: there is definitely something strange. I can enter the settings and I see three different APNs that were not created by me (they must be the standard carrier ones): they are called Vodafone DE (for Germany), 1und1 (pretty strange because the settings are the very same on this one, only the name is different) and Vodafone DE-MMS.
The strange thing now is that I can't change any value of the Vodafone DE APN... When I go into its settings, everything ia greyed out. This was the same on the stock ROM...
Now when I create a new APN with the correct provider settings (found via Google on the VF homepage), the phone still won't work. When I put the device aside for a few minutes, the Vodafone Deutschland DE APN is the selected APN again although I never went back to it...
Is there some option to take a deeper look into the modem stats to see what's the problem?
Click to expand...
Click to collapse
Delete the unused APNs.
Do you have mobile data?
Also I asume that you're running the latest vertigo's build, because with me GSM/WCDMA/LTE is always selected.
Sent from my GT-I9505 using Tapatalk 4

Sometimes I have mobile data, but only for very limited time; for the majority of time, I don't have mobile data and can not make calls.
I also tried to delete the unused APNs, but still no change =/
I tried to use a different Micro SIM in this device, but the same problem appears. No data, no phone although I have grey reception balks.

any update on this one?!

[Q] MIUI v.3 Data Problem

Hi, Just installed this ROM using the recommended kernel (percy_g2's CM#2). I've search for a bug related to data connections but seems It's only me. SIM card recognizes my provider and I can make/receive calls and sms, but using the data plan it's impossible, showing it's disconnected. Checked and unchecked the roaming option and still doesn't work. What are my options?

Reset apn settings to default or manually enter them - your provider can send you the settings
Phone settings
click more or wireless and network settings
Mobile networks
access point names
press menu button on phone
reset to default
Check the apn settings are present & correct for your provider or enter them manually

marcussmith2626 said:
Reset apn settings to default or manually enter them - your provider can send you the settings
Phone settings
click more or wireless and network settings
Mobile networks
access point names
press menu button on phone
reset to default
Check the apn settings are present & correct for your provider or enter them manually
Click to expand...
Click to collapse
Did it and didn't work. As far as I recall, in all other roms I have installed I never changed settings ain APNs, they were empty all the time. The phone automatically gets the connection to the carrier. It was all about enable or disable data.
I called my provider but they say the network itself should recognize you inmediatly.
I just flashed stock and it's working there but not in MIUI.

memop3 said:
Did it and didn't work. As far as I recall, in all other roms I have installed I never changed settings ain APNs, they were empty all the time. The phone automatically gets the connection to the carrier. It was all about enable or disable data.
I called my provider but they say the network itself should recognize you inmediatly.
I just flashed stock and it's working there but not in MIUI.
Click to expand...
Click to collapse
Iv always had my providers access point in my apn settings but may be different for others
The only other thing you can do is try a different stock rom firmware baseband
you can do this by flashing a different stock rom firmware via odin to what you are currently using
See dokys thread at top of dev section for a list of pre done flashable odin firmware or make your own with any latest firmware from sammobile.com using the splitter tool

marcussmith2626 said:
Iv always had my providers access point in my apn settings but may be different for others
The only other thing you can do is try a different stock rom firmware baseband
you can do this by flashing a different stock rom firmware via odin to what you are currently using
See dokys thread at top of dev section for a list of pre done flashable odin firmware or make your own with any latest firmware from sammobile.com using the splitter tool
Click to expand...
Click to collapse
Could flashing a different Percy kernel may work?

problems with Rogers data lte/3g with asop roms

ever since i switched to an asop rom my lte and 3g signal has dropped dramatically. I have rogers, played with mulitple apn settings etc. any help boys ? is there fix i can flash?

Naruto101 said:
ever since i switched to an asop rom my lte and 3g signal has dropped dramatically. I have rogers, played with mulitple apn settings etc. any help boys ? is there fix i can flash?
Click to expand...
Click to collapse
Hi,
The first thing would be to check your CSC and modem firmware. Use Phone INFO ★Samsung★ app to get all major info about the phone. It is important to know when you are going to flash another stock firmware.
I had issues last week with data and it was caused by bad CSC/modem. Flashed everything back to stock with official firmwares from SamMobile and it fixed my issues. After that, I was able to flash my custom ROM and everything is smooth sailing since then.
Let me know if you require more help.

Bibz0r said:
Hi,
The first thing would be to check your CSC and modem firmware. Use Phone INFO ★Samsung★ app to get all major info about the phone. It is important to know when you are going to flash another stock firmware.
I had issues last week with data and it was caused by bad CSC/modem. Flashed everything back to stock with official firmwares from SamMobile and it fixed my issues. After that, I was able to flash my custom ROM and everything is smooth sailing since then.
Let me know if you require more help.
Click to expand...
Click to collapse
Thanks for help bro. I took a screen shot of my info. I'm not sure why it shows bmc when I downloaded the rwc files. And is the product code correct?, also I never seen the code for csc modem before. Is it not suppose to match baseband, pda, bootloader

Everything is good, you're almost there.
You have the right firmware but now you need to fix your CSC. The stock ROM is multi CSC so Rogers (RWC) is already installed but it chooses Bell (BMC) by default. What you can try :
- Power off your phone
- Remove SIM card and power on (your phone will start and say : no sim card)
- Power off and wait a moment
- Insert your Rogers SIM card and power on your phone in Recovery Mode (Volume Up, Home and Power on boot). If you have:
#manual mode#
--appling multi-csc...
applied the csc code : RWC
successfully applied multi-csc
That means that your CSC has been changed to Rogers. Problem should be fixed.
If not, the app you downloaded contains a CSC Changer but it will wipe your data. Make sure to have backups beforehand.
Let me know if you need anything else.

Bibz0r said:
Everything is good, you're almost there.
You have the right firmware but now you need to fix your CSC. The stock ROM is multi CSC so Rogers (RWC) is already installed but it chooses Bell (BMC) by default. What you can try :
- Power off your phone
- Remove SIM card and power on (your phone will start and say : no sim card)
- Power off and wait a moment
- Insert your Rogers SIM card and power on your phone in Recovery Mode (Volume Up, Home and Power on boot). If you have:
#manual mode#
--appling multi-csc...
applied the csc code : RWC
successfully applied multi-csc
That means that your CSC has been changed to Rogers. Problem should be fixed.
If not, the app you downloaded contains a CSC Changer but it will wipe your data. Make sure to have backups beforehand.
Let me know if you need anything else.
Click to expand...
Click to collapse
Thanks for all the help man, did the sim thing and it just loaded me into twrp and i didnt see an option so I changed it via the app. Same thing still got the 4G and bell bloat. But csc now says bmc/rwc

Ok. Try this now :
You must dial the following key sequence to bring up a regional carrier menu: *#272*[IMEI]# (that is *#272* (your IMEI number) #) - You'll find your IMEI in the Phone Info app.
When the menu comes up, select the regional code for Rogers RWC. The phone will now go through a reset/boot sequence and come this time, it should read the APN settings from your SIM card and viola, you now have LTE. If you do not see LTE but 3G, you will need to ensure your APN settings are correct and then go into the Network Mode and ensure you have LTE/WCDMA/GSM (auto mode) selected.
Let me know how it goes.

Bibz0r said:
Ok. Try this now :
You must dial the following key sequence to bring up a regional carrier menu: *#272*[IMEI]# (that is *#272* (your IMEI number) #) - You'll find your IMEI in the Phone Info app.
When the menu comes up, select the regional code for Rogers RWC. The phone will now go through a reset/boot sequence and come this time, it should read the APN settings from your SIM card and viola, you now have LTE. If you do not see LTE but 3G, you will need to ensure your APN settings are correct and then go into the Network Mode and ensure you have LTE/WCDMA/GSM (auto mode) selected.
Let me know how it goes.
Click to expand...
Click to collapse
I actually did the last sstep you mentioned below this morning (found the steps online ) and it still didn't work lol, so technically when i did it in the app it was my second time restarting the phone.Not sure what's going wrong here. Seems like bmc still lingers around. Haha don't give up on me

Naruto101 said:
I actually did the last sstep you mentioned below this morning (found the steps online ) and it still didn't work lol, so technically when i did it in the app it was my second time restarting the phone.Not sure what's going wrong here. Seems like bmc still lingers around. Haha don't give up on me
Click to expand...
Click to collapse
Don't worry, I'm not giving up on you
When you flashed back to stock ROM, did you do a full wipe before?
It is really important that you do a full wipe so that it doesn't leave any traces of your old installs.
Try to flash via Odin (while your phone is on Download Mode). Check the AP and the CSC box and input the stock file from SamMobile.
Let me know if it fixes it.

HELP I broke my LTE

First off I'm using an unlocked S5 on straight talk's LTE network, have been for about 9 months with no problems. I've talked to support twice and they reactivated networks and all that good stuff, and when none of that worked sent me a new sim, which I have just activated and it still didn't fix my problem - so I'm finally bringing my issue here.
Last week I decided to update from phoenix rom oc4 (I think it was oc4) to optimal rom og5 (15-5). Anyway I was hasty in flashing and messed up, so just went back to stock ncg > root > full wipe > flash firmware, rom, kernel, firmware again just to be safe. The rom works fine except I seem to have lost my data connection. The 4G icon still shows, but it's not filled in - as you can see in the screenshots. To make it even more strange, when I check the network and sim card in apps like Advance Signal Status and Sim Manager, I still seem to be getting a connection to 4G but there is just no data flowing. The only error I can see is in phone info, when I run a ping test, I get PingIpAddr: Fail: IP addr not reachable which you can also see in the screenshots. It would appear this is my problem but I don't know where to go from here. I'm going to start flashing different versions of modems, starting with oc4 to see if that helps. Then I'll probably try different roms, but I've flashed other roms trying to fix this and even restored the backup to when it worked and it still didn't fix my problem. Did I wipe my IP address or something maybe? I am in CDMA/LTE mode, and the vzwinternet apn is selected.

For starters try to put the apn settings for your carrier and if not sure call them and ask them to email you the setting

I fixed it, went back to stock ncg instead of ni2 and that worked. Weird.