Hello all,
I have run into quite the peculiar bug recently.. After flashing the SM-N900W8 Kit Kat Odin tar, I no longer have any data capabilities. I can still text and perform basic calls, but I have no LTE, 3G, etc..
The odd thing is that I redownloaded the .tar and tried again and it still doesn't give me data connectivity.
I just tried to enter in the Telus APN settings, and it has given me H+ connectivity, but still no more LTE. I honestly don't understand what is happening.
P.S. I end up with LTE just fine on Carbon ROM, or AOSP.
EDIT: Just rebooted the device and I have LTE now.
Related
I'm a bit stumped as to what happened here. When I first purchased my phone (SGH-I337M on Bell Mobility in Canada) it had LTE connectivity. Soon afterwards I flashed m3dd0g's Stock Google Edition 4.2.2 rom (It was V2 at the time) and the phone still had no issues connecting to LTE.
Now here is the part I'm confused about. I flashed V4 of the rom a while back and I didn't notice it until recently but I believe I lost LTE after this. It might have been something else I did as I didn't notice exactly when this happened since the phone sometimes switches between H+ and LTE. Now I'm only connecting to H+ and seeing download speeds of around 12Mbps. I've tried flashing a few other roms and still no luck. I have even tried restoring the nandroid backup of the original stock Samsung firmware and even that is failing to connect to LTE. I checked and I'm still using the stock Canadian baseband (MVLUAMDJ).
Does anybody have any suggestions as to what I can try to do? Thanks!
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?
I seem to have no data when I flash back to Touchwiz. I need to do this in order to fix GPS since apparently it broke again in CM11. I was told the fix was to get a lock in TW and then restore my backup of CM11.
When I flash: StockRootedNAE.zip, I have no wifi/mobile data/cellular connection. I have the NAE firmware on my phone.
So how do I get mobile data on TW?
Any input?
No input at all...?
agentfazexx said:
I seem to have no data when I flash back to Touchwiz. I need to do this in order to fix GPS since apparently it broke again in CM11. I was told the fix was to get a lock in TW and then restore my backup of CM11.
When I flash: StockRootedNAE.zip, I have no wifi/mobile data/cellular connection. I have the NAE firmware on my phone.
So how do I get mobile data on TW?
Click to expand...
Click to collapse
I have experienced several no data sessions on cm11 nightlies over the past month or so. I thought it was maybe the ng2 modem so I odin back to nae and had the same thing. wifi seems to always work but mobile data appears connected but wont actually send/receive any data. I have no idea what caused this however if I go settings>mobile network settings>prefferred network type and change it from LTE to 1x and airplane mode on then off then let it connect to 1x for a few minutes then change back to LTE then airplane mode on/off then it connects back to LTE for data successfully. Hope this helps!
Ryan
nhpd4101 said:
I have experienced several no data sessions on cm11 nightlies over the past month or so. I thought it was maybe the ng2 modem so I odin back to nae and had the same thing. wifi seems to always work but mobile data appears connected but wont actually send/receive any data. I have no idea what caused this however if I go settings>mobile network settings>prefferred network type and change it from LTE to 1x and airplane mode on then off then let it connect to 1x for a few minutes then change back to LTE then airplane mode on/off then it connects back to LTE for data successfully. Hope this helps!
Ryan
Click to expand...
Click to collapse
My CM11 issue is GPS like I said, not data/wifi/cellular. The latter problem is on TW when I flash the zip I mentioned, even with NAE firmware...
I just upgraded to Lollipop and lost LTE. I have EHRPD 3G only.
I am rooted and on Extreme Syndicate 5.0 Lollipop.
I have tried the usual items found in Google:
1) Removed SIM, rebooted. Put back SIM
2) Checked LTE settings under mobile networks (Global, also tried CDMA/ LTE)
3) Checked APN (vzwinternet, internet and VZWINTERNET)
4) Tried basic toggling of airplane mode, data, etc.
I am trying to avoid going back to kitkat stock and working back to lollipop.
I am hearing that a new SIM may be required but I have not gone that route yet and would like to resolve right away rather than taking a day for a SIM to ship to me.
Any help is appreciated.
Have you factory reset the phone after the update? It would be something to try.
JerseyFF said:
Have you factory reset the phone after the update? It would be something to try.
Click to expand...
Click to collapse
I tried numerous things. Right now my LTE has come back however things are kind of strange when I reboot, but at least ultimately end up working. I have a new SIM to throw in there when I lose things entirely again. I'm now sort of convinced that the problem is the SIM as I have tried a few different ROM's including stock unrooted KitKat and data always acts the same. I'm now on 5.0 and it's again the same.
Hello, after upgrade to 5.0 my s5 verizon, i lost 4g, but on 4.4 it worked fine in russia
Hey guys, hopefully you can help me get my S5 back on track.
KLTEUSC G900R4
The story goes:
I've been running CM13. Flashed a nightly, I notice my phone hasn't locked 4G basically all day. 3G only.
So I Odin back to stock using the latest firmware. Phone is still stuck in 3G. Phone does an OTA update to CPF2 baseband version. Still no 4G.
Took the phone to USC store, they provided me with a new SIM. Nothing changed.
I took a trip out of my home area, about 100 miles away I got 4G, but i had no network connection? The phone displayed 4G but i could not connect to any internet. It then dropped down to 3G shortly after and I was able to access data again.
Since then I've flashed back to CM13 (snapshot august 20th release) since if I'm going to be stuck in 3G forever, it might as well be on a ROM that I like.
Please help!
Thanks,
Jeremy.
Bump. Still no LTE.
If I reboot the device, the phone locks LTE for a few seconds, with network connectivity, but then quickly loses it and drops back to 3G. If I leave the phone in LTE preferred, it will run in 3G for most of the time, but occasionally totally lose data (I'm assuming its trying to connect to LTE) then go back to 3G.
Any Ideas?
flash the stock tar.md5 in Odin, reflash TWRP, boot it up fully, boot into recovery, make a NAND, reflash your ROM. Sounds like something got screwed up in the radio firmware
Will that still work even though I can't get 4G when i'm on the stock rom?
$50 reward to whoever can successfully restore 4G LTE to my phone. I've been living on 3G for 6 months and its starting to get to me.
I've been on Lineage OS with the same results. There was a firmware update, so I flashed it through Odin, and ran the stock rom/firmware for about 3 days with the same results. No 4G. Called up the US Cell Tech guys and they were going to check everything over on their end.
The last go round, I repartitioned the phone, did NandEraseAll, and EFS clear.
Any ideas?