Hi, I'm from India and have a GT-I9500 which has been running flawlessly for the past 1 year on BSNL service right up to OS version 4.4.2 firmware vers. I9500XXUFNE4. Since then I upgraded the firmware twice to I9500XXUFNG1 and subsequently to I9500XXUFNI2. Midway while using firmware I9500XUFNG1 in rooted version, I started noticing that my phone data would run normally for a while and then suddenly the data connectivity would drop from H+ mode to 3G but would not return to H+ even though I know that I am in an area that has consistently strong H+ signal. The only option to get H+ mode back was to go to Settings/More networks/Mobile networks/Network mode/ and change the setting to WCDMA only mode for two minutes and then switch back to WCDMA/GSM(autoconnect), then the phone would get H+ service back again for a few hours. I thought that it might have been some problem caused by rooting, so when the latest firmware (I9500XXUFNI2) was released this month I upgraded the firmware but since I lost root on upgrade, I did not root the phone, fearing the problem will come back since I thought root was causing it.
Now in stock firmware running on I9500XXUFNI2 I am still getting the same problem of the phone dropping to 3G mode from H+ and not reverting back ( the speed is not even 2G. Just the 3G icon shows it - data packets hardly get transferred) and I can rectify it only by switching to WCDMA mode and back to autoconnect, as previously stated.
I checked online for solutions, but I don't seem to see anyone facing such an issue.
I thought it could be a service provider problem, so I used SIMs from Idea and Airtel as well, but while using those networks also, the same problem persists, so I have deduced it is a problem pertaining to the phone only. Not sure if it is a hardware malfunction or firmware based.
Does anybody else from India running the latest firmware for GT-I9500 have similar problems, and is there a solution?
Thanks.
Etrnlwanderer said:
Hi, I'm from India and have a GT-I9500 which has been running flawlessly for the past 1 year on BSNL service right up to OS version 4.4.2 firmware vers. I9500XXUFNE4. Since then I upgraded the firmware twice to I9500XXUFNG1 and subsequently to I9500XXUFNI2. Midway while using firmware I9500XUFNG1 in rooted version, I started noticing that my phone data would run normally for a while and then suddenly the data connectivity would drop from H+ mode to 3G but would not return to H+ even though I know that I am in an area that has consistently strong H+ signal. The only option to get H+ mode back was to go to Settings/More networks/Mobile networks/Network mode/ and change the setting to WCDMA only mode for two minutes and then switch back to WCDMA/GSM(autoconnect), then the phone would get H+ service back again for a few hours. I thought that it might have been some problem caused by rooting, so when the latest firmware (I9500XXUFNI2) was released this month I upgraded the firmware but since I lost root on upgrade, I did not root the phone, fearing the problem will come back since I thought root was causing it.
Now in stock firmware running on I9500XXUFNI2 I am still getting the same problem of the phone dropping to 3G mode from H+ and not reverting back ( the speed is not even 2G. Just the 3G icon shows it - data packets hardly get transferred) and I can rectify it only by switching to WCDMA mode and back to autoconnect, as previously stated.
I checked online for solutions, but I don't seem to see anyone facing such an issue.
I thought it could be a service provider problem, so I used SIMs from Idea and Airtel as well, but while using those networks also, the same problem persists, so I have deduced it is a problem pertaining to the phone only. Not sure if it is a hardware malfunction or firmware based.
Does anybody else from India running the latest firmware for GT-I9500 have similar problems, and is there a solution?
Thanks.
Click to expand...
Click to collapse
The problem is with the modem firmware. Change it back to the original or get a kernel.
Devilslasher said:
The problem is with the modem firmware. Change it back to the original or get a kernel.
Click to expand...
Click to collapse
Thank you, Devilslasher. Could you please link me to a thread where they have listed the original modem firmware? I did a search under the Samsung S4 subsection on xda but could not find any thread where modems/radios for Indian version was hosted.
Thanks in advance.
Related
Hi Guys
so i'm currently running:
baseband i9505XXUBMF4
and i ger LTE and data reception with foxhound rom ..
however with some roms i loose my data connection ... i get cell and wifi but no data...
I tried the 4G LTE switch it app. and nothing ...
so what baseband should i be flashing with ?
how should i do it ?
please help
thanks
I think the foxhound rom isn't compatible for that... try flashing your stock rom maybe it will return the connections....
Sent from my GT-S5360 using xda app-developers app
Or extract the modem file from stock firmware
Similiar Issue
Here's some steps I went through to investigate this issue. Don't get your hopes up, I don't have a solution.
You can use service mode to lock the phone to LTE and get a better view of what's going on.
Dial *#0011# to get you into service mode. Then you want to go up a menu (there's a bug here). Hit menu>back (nothing will happen), then menu>keyinput then type 1 and hit ok. Select option [1]>[6]>[2] from here you can lock to LTE by hitting [4]>[2] (Telstra run LTE on Band 3 = 1800MHz). Reboot for good measure.
Exit and Dial *#0011#. If your phone works, you're now looking at some low level LTE RF stats. I have 2 GS4's which are showing me strong coverage. If you phone is like my third GS4, it'll say No Service.
I can lock that dodgy one to GSM or WCDMA with no issue.
So, off I go to flash the modem to within an inch of it's life...
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...
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?