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?
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!
I had an issue with Alliance rom. It went from wifi to 4g and I lost the prl and other stuff (said unknown). I only had wifi.
I was able to Odin back to stock. It took like three times as it would not move past the activation screen.
Now, on stock, I flashed TWRP recovering using ODIN, then used the CF root from Odin also. Phone restarted and while I have the 4g logo, I have no phone and the information is missing again (PRL). I do get wifi.
I just used Odin to reflash stock and it is still doing it. I also used the imei tool to restore what I had backed up (EFS). Can anyone help? What is going wrong?
Edit: Phone restarted with root BUT now I cannot make calls (it says roaming) and I am missing the prl and other things again. HOWEVER, I can use wifi, and 4g and no texting also.
If anyone has a clue I'd like to know, thanks.
rlewis312010 said:
I had an issue with Alliance rom. It went from wifi to 4g and I lost the prl and other stuff (said unknown). I only had wifi.
I was able to Odin back to stock. It took like three times as it would not move past the activation screen.
Now, on stock, I flashed TWRP recovering using ODIN, then used the CF root from Odin also. Phone restarted and while I have the 4g logo, I have no phone and the information is missing again (PRL). I do get wifi.
I just used Odin to reflash stock and it is still doing it. I also used the imei tool to restore what I had backed up (EFS). Can anyone help? What is going wrong?
Edit: Phone restarted with root BUT now I cannot make calls (it says roaming) and I am missing the prl and other things again. HOWEVER, I can use wifi, and 4g and no texting also.
If anyone has a clue I'd like to know, thanks.
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Click to collapse
Please somebody has to know something. Give me a clue, help me out please.
Have you tried flashing the stock rom modem?
give some info on what s5 you have, G900F? what stock rom have you flashed?
stalli0nUK said:
Have you tried flashing the stock rom modem?
give some info on what s5 you have, G900F? what stock rom have you flashed?
Click to expand...
Click to collapse
I actually could not find the stock modem. I DID solve it.
1.) Odin back to stock. It will freeze on the activation screen.
2.) Remove sim card after shutting down.
3.) It will get past that and connect with wifi.
4.) THEN clock on roaming to turn it on with sim in.
5.) Phone will then contact US Cellular to "activate and program." It will finish after a few minutes.
6.) Restart and enjoy
In case this happens to anyone else. Thanks for the help (lol). I've had a Droid Eris, HTC DNA, and a Droid Bionic.
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.
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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.
My two year contract with Verizon expired last week and I'm yet to sign up for a new plan. So currently I'm on the same data plan but on the month to month pricing.
Within 24 hours of my contract expiring, I noticed I can't connect to 4g/lte.I can however get a 3g signal and WiFi is fine. I tried flashing a couple of roms, reflashed bootstacks, and tried playing around with APN settings, but I still haven't been able to get a LTE signal. And it's not the location. I've had no success within a 20 mile radius from my home location.
I don't know if coming out of contract has anything to do with it, buy the timing of it seems to be too much of a coincidence to not consider it.
Any suggestions /tips are much appreciated.
I am having the same problem on my VS980. I have tried a 39A ... KDZ flash.. and still in 3g on the stock rom.
before the KDZ i tried Slim Saber, Cloudy 2.2, Extreme.
Could it be the sim card?
Thanks!
UPDATE:
KDZ back to 24A and 4G is back. I will step it back upto 39A and then get back to XDABBEB's rom. Hope this helps.
Thanks for the update. Glad it worked out for you.
I replaced the Sim card today and no luck. Tried the Sim in another phone and got LTE. So it's not my account. Even tried switching to another 39a bootstack.
Will update after trying 24a tomorrow. Thanks again
Still working great. I didn't try just flashing the boot stack I did a full CSE KDZ flash of the 24A firmware.
If just flashing the bootstack and modem work for you that would be great and you wouldn't have to copy all your files to the computer before wiping the phone. Good luck.
I finally got it working. Ended up flashing the 39a kdz and got 4g back. Lg_root and the 39a freedom tool got me back to flashing roms. Thanks for the direction on going the kdz route.
What I noticed is that if I flashed my TiBu update.zip file to get all my apps back, it puts me in the same situation. I lose 4g. And I have to do the whole thing over again. Ended up downloading all my apps and restoring data from TiBu individually.
I am having issues getting other rom's to work. I have flashed lineage to my sprint samsung galaxy s5. I have the twrp bootloader installed and thanks to skillsoft tool i was able to get it to actially stick. I did not like lineage primarily because it has issues with lte and my 64gig sd card ( my 16gig worked though despite being significantly slower) So i tried moar rom by downloading it doing a wipe and installing zip. I let it sit for 40 minutes but it stayed on the samsung screen. So i thought ok maybe its the rom, i downloaded aj's a8 2016 port v2 did a wipe and installed it as a zip, same thing. Is there an issue going from droid 7 to these other rom's?
OK, So i was wondering if this is just me. I dont see much mention about this problem browsing the threads. Course i could be missing it. So despite not really wanting to i brought my phone back to factory. The LTE connection came right back which was relieving i thought maybe i screwed something up royally. So i re-installed twrp and flashed ResurrectionRemix-M-v5.7.4-20161121-kltespr figuring maybe its something with the neugat based roms. I still cant get my phone to connect with lte. I switch it to lte prefered, nothing. Switch it to 3g and i can connect. Back to lte still nothing. I am clueless as to what might be going wrong other than maybe its the modem driver?
The factory rom i used was G900PVPU3BOK4_G900PSPT3BOK4_G900PVPU3BOK4_HOME.tar.md5
Any insight on this would be very welcomed.
Well I am a bit confused on this. I took the stock rom and extracted the NON-HLOS and modem bin files. ( thank you 7zip allowing fools like me with windows to do things linux is often used for ) from the stock marshmello rom which i downloaded and previously flashed to my phone and verified it connects with lte. I made a tar with both of them and flashed that via cp on odin and i still can only connect with 3g. I am really not sure whats going on with this.
Ok Turns out not knowing what i was doing basically created a LOT of extra work for me. I use a 3rd party mvno called tello which is great for low cost low usage customers like me. I finally stumbled upon this thread: https://forum.xda-developers.com/general/help/tello-apn-settings-t3409432
Added the tello apn and whala worked like magic, didnt even have to reboot. I had to do this with it set to global. For whatever reason when its set to lte i couldnt add and save a apn. Once i added the apn then switched to lte whala lte connection.