After changing SIM with a new one, LTE simply doesn't work anymore. I tried swapping other 3 new sims, disabled and re-enabled LTE with the operator, they did a new profiling of my sim card... I simply don't have LTE anymore on the phone.
Running the latest 4.3 DBT firmware, never rooted, always stock, did a factory wipe via recovery after the update to 4.3. I do have the LTE/UMTS/GSM option in the menu, but the phone simply doesn't lock on 4G.
Any help out there?? :crying:
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 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
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.
Hey all,
So, a little backstory: I got this HTC 10 from Sprint not too long ago, and little did I know that I would be stuck with Sprint unless I reflash the phone firmware. (after research, asking HTC and Sprint, I received misinformation from reps stating that the phone would work on Verizon with just a carrier unlock issued over the air). Moral of the story: don't rely on customer service :silly:.
Fast forward to now, and I have rooted (temporarily to run Sunshine), S-OFF'd (using Sunshine), changed the CID (for Verizon), and flashed the newest Verizon RUU that developer Dottat kindly posted here.
That worked, full LTE, but then whenever the camera or GPS were accessed by any application, the phone would freeze with a black screen (though it seemed something was still running in the background, as notification sounds would still play, and I could exit by pressing the home button and waiting about a minute). After this, I tried flashing the Viper ROM just for kicks, but then the cellular radios only functioned with 3G coverage (no LTE in a coverage area), and GPS was still broken (the camera issue was fixed with this flash for some reason).
Unfortunately (or maybe not), I am pretty sure /system has been wiped multiple times. I also ran
Code:
htc_fastboot erase modemst1
htc_fastboot erase modemst2
after each install of a new ROM, then performed a factory reset from recovery (just a factory reset, nothing more).
Now I went ahead and used an official ROM from HTC's website in an attempt just to get full functionality working on any carrier. I flashed the USA unlocked variant (and changed the CID to BS_US001. MID is still 2PS650000), but now I am experiencing more missing functionality. The camera and GPS are still missing, and now the SIM card is not detected (when entering the access point names dialog, a message pops up stating that there is no SIM, or SIM error when I am using an activated AT&T SIM). When I enter the test menu (*#*#4636#*#*) and select any option for network mode other than what is default (LTE/CDMA), the new option won't 'stick' (it returns to default after a few seconds).
This sounds to me like there is stale firmware on the device from a previous flash, or that the firmware for these core peripherals is corrupt. Is there a way I can get these devices working again? Or am I now stuck with a bricked device ? I do still have a backup I took of what was installed stock by Sprint (all except for /data...but I don't need that partition, right?)
EDIT: Mods, I am terribly sorry! I meant to post this in HTC 10 Q&A. I don't see a way to delete a thread, so hopefully we can move it.
MrFarquad said:
Hey all,
So, a little backstory: I got this HTC 10 from Sprint not too long ago, and little did I know that I would be stuck with Sprint unless I reflash the phone firmware. (after research, asking HTC and Sprint, I received misinformation from reps stating that the phone would work on Verizon with just a carrier unlock issued over the air). Moral of the story: don't rely on customer service :silly:.
Fast forward to now, and I have rooted (temporarily to run Sunshine), S-OFF'd (using Sunshine), changed the CID (for Verizon), and flashed the newest Verizon RUU that developer Dottat kindly posted here.
That worked, full LTE, but then whenever the camera or GPS were accessed by any application, the phone would freeze with a black screen (though it seemed something was still running in the background, as notification sounds would still play, and I could exit by pressing the home button and waiting about a minute). After this, I tried flashing the Viper ROM just for kicks, but then the cellular radios only functioned with 3G coverage (no LTE in a coverage area), and GPS was still broken (the camera issue was fixed with this flash for some reason).
Unfortunately (or maybe not), I am pretty sure /system has been wiped multiple times. I also ran
Code:
htc_fastboot erase modemst1
htc_fastboot erase modemst2
after each install of a new ROM, then performed a factory reset from recovery (just a factory reset, nothing more).
Now I went ahead and used an official ROM from HTC's website in an attempt just to get full functionality working on any carrier. I flashed the USA unlocked variant (and changed the CID to BS_US001. MID is still 2PS650000), but now I am experiencing more missing functionality. The camera and GPS are still missing, and now the SIM card is not detected (when entering the access point names dialog, a message pops up stating that there is no SIM, or SIM error when I am using an activated AT&T SIM). When I enter the test menu (*#*#4636#*#*) and select any option for network mode other than what is default (LTE/CDMA), the new option won't 'stick' (it returns to default after a few seconds).
This sounds to me like there is stale firmware on the device from a previous flash, or that the firmware for these core peripherals is corrupt. Is there a way I can get these devices working again? Or am I now stuck with a bricked device ? I do still have a backup I took of what was installed stock by Sprint (all except for /data...but I don't need that partition, right?)
EDIT: Mods, I am terribly sorry! I meant to post this in HTC 10 Q&A. I don't see a way to delete a thread, so hopefully we can move it.
Click to expand...
Click to collapse
A MOD should move it soon.
I am not the best here, but hopefully can be of some help.
I would just superCID, save a step for flashing RUU's.
So, when you flash the Verizon RUU, does camera work?
(if you RUU and only have 3g, wipe the modems to get 4g back)
If your trying to use the phone on Verizon I would do the following:
1) Change your CID to Super, 11111111
2) Flash the US Unlocked RUU, http://www.htc.com/us/support/rom-downloads.html#unlocked
3) After it fully boots, reboot into the bootloader & flash the Verizon radio, http://forum.xda-developers.com/verizon-htc-10/how-to/vzw-how-to-unlocked-model-vzw-t3376743
4) Make sure the Preferred Network is set to Global, Settings>Mobile data>Preferred Network
5) Get to the secret menu *#*#4636#*#*, and set the preferred network type to "CDMA/EvDO/GSM/WCDMA/LTE Auto"
I use a Verizon model with the US Unlocked firmware. As far as custom ROMs, some work with Verizon's network and some don't. I'm sure theres a workaround but I've stuck with the US Unlocked firmware, and just use Xposed for any tweaks/mods.
If your trying to use it on AT&T and the radio from the US unlocked RUU should work.
andybones said:
A MOD should move it soon.
I am not the best here, but hopefully can be of some help.
I would just superCID, save a step for flashing RUU's.
So, when you flash the Verizon RUU, does camera work?
(if you RUU and only have 3g, wipe the modems to get 4g back)
Click to expand...
Click to collapse
Used to be a guy around here we could trust to help.
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