So, previously when I went into network operators, next to T-Mobile there would be a little sim card icon. This has not shown up, and it will not roam off T-Mobile. If I do manually select ATT when I have no Tmo service, it refuses to switch back without multiple restarts and sacrificing a goat.
I've noticed that this is also happening on two Nexus 6 phones I own. Same deal, no sim card icon. They will roam off Tmo, but often times get stuck on att if there's strong enough att signal. Interestingly, the one that is bone stock has even more trouble switching back than one on a custom rom.
Did Tmo change something, or is it something on my end? because I've not changed anything on my G5, it's rooted and running stock (M update right now) with TWRP recovery and it worked fine before. The two nexus phones haven't had issues like this in the past either.
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My MyTouch 4G slide has been sitting for a month or two after previously working fine. Now it powers up however it can't get a signal with my T-mobile SIM (or my wife's). I'm concerned that somehow the radio might have gotten fried. So far I've reflashed it back to stock, unrooted, and hard reset it a few times, nothing has worked.
If I go into Wireless & Networks, drop down to Mobile Networks, Then Network Operators, and "Search Networks", it takes a few moments and finds AT&T & T-Mobile (I'm in an area where my devices normally get full T-Mobile service). However when I try to connect to T-Mobile, I get a message saying "Your SIM card does not allow a connection to this network". Same SIM works fine in a G2, connected to T-Mobile.
Anyone have a way to test the phone radio, or perhaps have an idea on what it's issue is?
I have had this exact problem, and attempted the same solutions, but without success. Was working fine, and then 1hr later quit working and was not able to repair even after return to stock/deroot, etc. Doing warranted return, and just got replacement phone by mail for swap out from t-mo.
am a little worried about reroot and rerom in case I have another problem.
My device is doing the same thing. Not sure when it started... I havent used the MT4GS in a few weeks, picked it up and reset it back to stock everything, and it's not getting any service from any of my SIM cards. I unlocked it a while ago to use on AT&T prepaid SIM, and not even that will work... Any advice would be helpful...
dadarkmcse said:
My MyTouch 4G slide has been sitting for a month or two after previously working fine. Now it powers up however it can't get a signal with my T-mobile SIM (or my wife's). I'm concerned that somehow the radio might have gotten fried. So far I've reflashed it back to stock, unrooted, and hard reset it a few times, nothing has worked.
If I go into Wireless & Networks, drop down to Mobile Networks, Then Network Operators, and "Search Networks", it takes a few moments and finds AT&T & T-Mobile (I'm in an area where my devices normally get full T-Mobile service). However when I try to connect to T-Mobile, I get a message saying "Your SIM card does not allow a connection to this network". Same SIM works fine in a G2, connected to T-Mobile.
Anyone have a way to test the phone radio, or perhaps have an idea on what it's issue is?
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Click to collapse
I've used Z-Device Test by Zausan Innovacion Tecnologica to test just about everything on my phone.
I'm having a similar issue on mine after trying jupoeanutbear and failing. I have signal but data craps out at random times now.
Sent from my myTouch_4G_Slide using xda app-developers app
My Nexus 5 is the first phone I've owned that requires a SIM card and I switched to T-Mobile after being with Sprint for as long as I can remember. I've noticed that roaming appears to work much differently than what I had been used to. The phone never switches to roam on its own... I have to go in and search for available networks and pick one every time.
Should it be this way? It gets very annoying because I'm used to having a phone that would immediately roam once its primary carrier wasn't available. With what i have now it stays without service until i choose another carrier or its primary carrier comes back into range.
I've got a Verizon HTC M8 running DigitalHigh GPE 5.0.1 12/21 build, stock kernel.
I've had 4g issues with the phone since the first time I ever flashed away from stock. And the whole RUU back to stock and factory reset thing has never worked for me. The phone simply refuses to stay connected to 4G...
The first time I had the issue and I couldn't resolve it I called Verizon. Was sent through to tech support, who "opened a ticket" and told me I would hear from them once it was resolved. Never heard from them, but the issue did go away on it's own and the phone connected to LTE once more on its own. I was running BoneStock ROM at the time (this was back in August 2014).
Fast forward to November and I decide to switch to GPE and I start seeing 4G issues again. My phone would connect to LTE at first boot but once my Sim "activated" it would only connect to 3G from there out. I tried everything to get it back. I did RUU back to stock and factory reset, I flashed new radios, etc...
Finally I activated a new SIM that I had laying around and BAM! LTE service again.
... For a few days. And then back to 3G only.
I used an app called 4G switcher to force my phone to connect to a 4G signal and when I did that it showed that I was roaming... So I would dial *226 and update my roaming list and it would no longer say I'm roaming and would say I'm connected to LTE... For about 10 minutes and then back to 3G only.
I went to the Verizon. Wireless store today and they gave me a new sim and told me to call prepay customer service to see if I can get a warranty replacement. The new SIM instantly connected to LTE and has been connected for almost 6 hours now.
Is there something wrong with my phone that it keeps frying the SIM or could there be an issue with my account on Verizon's end, maybe something telling it to reprogram my SIM to not connect to 4g?
I have used my phone overseas for a month with a European SIM and a service that was only 3G, not sure if that would be relevant at all.
I'm fairly sure your problems aren't on Verizon's side. From reading over the thread, the GPE ROM certainly appears to cause some folks issues regarding LTE service. GPE wasn't designed to run on Verizon. It might be a good idea to stick with something built from a Verizon ROM.
Its a Lollipop thing. Happens on gpe, and Aosp 5.0 ROMs. Just wait till official gets out and they should figure out a fix.
I seem unable to get LTE on my D850 since I installed CM12.1 and was wondering if this is common for this ROM. I installed the nightly, so I assume its obviously going to be a bit buggy, but to not have LTE working seems strange.
I checked my APN and I tried both ATT LTE and ATT Phone. The ATT LTE gives me a status bar with an exclamation point and never establishes a data connection and ATT Phone gives me HSPA connectivity. At one time, I waited a few hours and it eventually established LTE but that was an uncommon occurrence and its never been repeated since.
With other ROMs I have not seen this issue replicated. I tested on Cyanide L, Euphoria, and the Stock LG ROM and everything worked fine. Any suggestions?
Hey there,
I'm running CyanideL myself, love this ROM.
Which nightly version are you using?
Have you checked that Mobile Networks --> Preferred network type.... is set to LTE?
Have you tried toggling to 3G, getting a connection, then moving back to LTE?
I also have this problem. Has a solution been found?
I just ditched the stock ROM and installed CM12.1 a few days ago. Now LTE has disappeared. I had it, now can't get it. I'm not able to select LTE in the settings→Mobile networks→Preferred network type menu, nor can I select any option that includes LTE in the test menu (*#*#4636#*#*). It's probably some stupid user error, but whatever it is has been eluding me for a day of messing with it.
Presently running cm-12.1-20150804-NIGHTLY-d850.
wseverin said:
I also have this problem. Has a solution been found?
I just ditched the stock ROM and installed CM12.1 a few days ago. Now LTE has disappeared. I had it, now can't get it. I'm not able to select LTE in the settings→Mobile networks→Preferred network type menu, nor can I select any option that includes LTE in the test menu (*#*#4636#*#*). It's probably some stupid user error, but whatever it is has been eluding me for a day of messing with it.
Presently running cm-12.1-20150804-NIGHTLY-d850.
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Click to collapse
Interesting...
Have you tried restoring your stock ROM and seeing if it will connect? How about a SIM card pull?
Have you tried restoring your stock ROM and seeing if it will connect? How about a SIM card pull?
Click to expand...
Click to collapse
Thanks for the reply. I have not tried returning to the stock ROM. I just got all my apps reinstalled and data restored, widgets installed, screens set up, etc., so I'm not too keen on doing all that again so soon.
I have tried a chicken SIM card pull. I was somewhat fearful of doing a pull "hot" as is usually suggested. I powered down, removed the SIM card, and restarted. After restart, I was able to select LTE in the settings→Mobile networks→Preferred network type menu, and the test menu confirmed that LTE/GSM auto was the preferred network type.
I then powered down, re-installed the SIM, and restarted. After restart the preferred network type had been reset to 3G and I was (am) unable to select LTE.
My conclusion is that this is something to do with the Net10 SIM I'm using. I've ordered a new SIM from Net10. The Net10 rep says a new SIM may fix things. One is on it's way and should be here in a few days. I'll post the result.
[SOLVED]
My new "LTE capable" Net10 SIM arrived today. I had Net10 customer service transfer my service to the new SIM. Now I have LTE; I'm able to select LTE in the Settings→Mobile_Networks→Preferred_Network_Type menu, LTE appears in the CM12.1 status bar, and I'm able to make a solid LTE connection.
I will here piece together everything I've learned from my own experience, Net10 customer support, and internet searching. My conclusion is that there are TWO compounding problems for Tracfone/Net10/StraightTalk users. One is techhnical and the other is marketing.
The technical issue is that all Net10 (also Tracfone and Straight Talk) AT&T SIMs sold up to a couple of months ago don't work with LTE on the AT&T network. That's most of the AT&T SIMs from these companies out there in the world today. This is not widely known – in fact, most of the Net10/TF/ST customer service reps are not aware of it. It's not something that Tracfone and its subsidiaries want known because it would cost them a bundle replacing SIM cards for unhappy customers. If you have a Net10/TF/ST SIM that's more than a few months old, you have to call Net10/TF/ST and buy another new one that's compatible with AT&T LTE if you want LTE service.
So, why don't more Net10/TF/ST AT&T users raise a fuss and demand LTE capable SIMs? That brings us to the marketing issue.
AT&T lies. So do Tracfone and its subsidiaries. AT&T markets its HSPA+ 3G service as 4G when it's not. In fact, the AT&T stock ROMs that most people are using lie. The stock ROMs display 4G or sometimes 4GLTE (depending on ROM version) in the status bar when in fact it's a HSPA+ connection; not 4G let alone LTE. So users cruise along using their old SIM cards happily thinking they have 4G or LTE connections when in fact they do not; and they're none the wiser. It's only more sophisticated users who flash a 3rd party ROM, one that doesn't lie, who figure it out.
(solution cross posted to similar thread at http://forum.cyanogenmod.org/topic/113404-cant-select-preferred-network-type-lte/)
Hello, I'm having a major problem with my phone and I'd be extremely grateful for any help or expertise.
PROBLEM:
I cannot get any kind of CDMA signal on TWO Verizon HTC M8 (I didn't post in that specific thread for a reason, I'll explain, please don't move it).
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HOW THIS HAPPENED:
The first phone, I was using as normal and it was fully functional.. One night i flashed a ROM and ended up falling asleep before if built the ART cache (so it was just playing the bootanimation) and the next morning I awoke to find the boot animation still running. The phone wasn't hot but ever since then I could never get any kind of CDMA service (so i can't use my carrier.)
The second one i just bought and put my sim in and BAM. Same problem.
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MORE DETAILS ON THE PROBLEM:
If i put my sim in, i can usually get 4G data but can NEVER get any lower bands. CDMA settings are greyed out in settings. This persists across ROMs and radio firmwares. My immediate thought was to get a new sim but my sim works absolutely fine in my LG G2. The sim is cut from a microsim but the point there is it worked fine before (and still works in my G2) and it didn't shift in the tray. I tried my friend's sim from an Iphone 5s and it did the same thing. I've tried everything i possibly know to do. This problem has basically cost me $400 dollars or 2 M8s.
Even if i go into the phone info hiddenmenu, i cannot select the CDMA or EvDo bands by themselves.