So the issue I have is I no longer have 4G. I got off an airplane and my phone had no 3G or 4G service. If I rebooted my phone or turned airplane mode off and on I would get 4G service for about 2 mins before it would switch back to 1x. Below is what I have done to try and fix the problem. Any ideas on what else I can do.
Reloaded a nightly of CM11. Did not fix anything.
Used odin to load a stock TW 4.04 rom. (still no 3g or 4g service)
Noticed that my IMEI had been earased to 0. I went to a verizon store to check my SIM card and noticed it was gone.
Used MTK NVram to restore my IMEI. (Still no 3g or 4g service)
Used the terminal command SU REBOOT NVrestore (This gave me back 3g service but I still do not have 4G service.)
I've search everywhere and cannot find a solution. Any help would be appreciated. I currently switch between CM11 and TW4.4 rom. Neither connect and preferred network is set to LTE, switching to global makes no change.
Thanks
Related
Hi,
I am actually on holiday, and for the first few days my nexus s (running masters deodexed 2.3.3 with voodoo kernel) was working fine. However for the last day and half, it has been stuck on Emergency Calls only. I have tried everything to fix it, switching to airplane mode, full reboot, going into settings, wireless and networks and manually selecting a network but it still only remains in Emergency mode only.
I pressed *#*#4636#*#* and under phone information, GSM service says Emergency Calls Only
I have tried switching off and on the radio and fiddling with the preferred network type but nothing seems to work. I dont know if this is a roaming issue (i dont think it is because it was working fine initially abroad) but any help will be most appreciated.
Thanks,
Hi, I am having this same problem too. I have the Nexus S from Koodo and it seems like it doesn't "like" my simcard. I also have a fido simcard on me and the Nexus S works fine on my Fido simcard. Today i went to a Koodo store and tried another one of the simcards and it didn't work either. So far I think my Nexus S is defective. You can PM me your email if you like if you want to see if i fix it.
I currently flashed and activated the Epic 4g (Sph-D700) on the cricket network, and everything was working good. But stupidly I flashed the Cyanogenmod 7 RC3 for the Epic 4g on Sprint network thinking the 3g would work. But ever since then I could never get the 3g working anymore.
Tried many steps; from QPST, APN settings, returning to stock, flashing CM9 Beta 4 on cricket, CM7 for Cricket, trying many ways in many forums to fix 3g, and returning to Cyanognemod 7 RC3 on Sprint and trying to fix it from there.
don't know what to do anymore. I installed an app like root explorer for free and messed with the apn. Tried to mess with the hap secret going to system, etc and reaching ppp. Tried installing the epic 4g different cell phone company fix flash file, the i905 data fix and no luck. I tried using CDMA workshop and QPST and tried a bunch of PRLs and the 3g icon wouldn't even pop up.
The PRL that worked with 3g cricket was 42700 one. Flash cyanogenmod 7 screwed it up. I even used voice dials to open APN and nothing. Even dialed ##8778# and set it back to PDA. Tried dialing #data and mess the settings there. Does anyone have a back up of the apn settings on cricket where the 3g works? I currently have thr $55 plan .
I noticed that on cm7 and cm9 the connection goes to 1x and no 3g connection. Also noticed that I keep losing signal and sounds like its updating PRL.
If anyone can help, please
I just updated to the 9/7 official nightly and messed with some settings (trying to get mms working).
Right now, if I set myself into 3g mode, I don't get any data. 4g still works.
I was doing the old mms fix where I changed the CDMA subscription to NV from RUIM/SIM and back. I still have a phone number and an IMEI, but if I switch to CDMA mode, no data.
I prefer to use 3g for battery savings, and also, I don't always get 4g coverage, so it would be nice to fix. Any ideas?
I'm not sure if it was the flash or the messing-around that caused the problem because right after flashing I was on WiFi and didn't notice if 3g still worked.
Hi all, I have a bit of an issue that I can't seem to resolve. Currently running CM10.1 RC5.
LTE does not work, 3G is fine. After some research I decided to do a factory wipe and reload Cm10.1 RC5, no positive results. Then upgraded the baseband to I535VRBMB1 from I535VRLG1 with no positive results.
I verified Network Mode is set to LTE/CDMA/EvDo, System select is Home Only and CDMA subscription is RUIM/SIM.
I found out that if I change the CDMA subscription to NV, LTE will activate and work properly but cell service does not work. I verified this with wireless disabled and used a Speedtest application with results of 61 ms, 5441 down and 6260 up.
This issue occurred as of RC1. One other item to note is I attempted an update by dialing *228 and pressing 2.
My network provider is Verizon Wireless.
Any assistance is greatly appreciated.
jobless said:
LTE does not work, 3G is fine. After some research I decided to do a factory wipe and reload Cm10.1 RC5, no positive results. Then upgraded the baseband to I535VRBMB1 from I535VRLG1 with no positive results..
Click to expand...
Click to collapse
Fixed. I followed this procedure http://forum.xda-developers.com/showthread.php?t=1974114 to bring my phone back to stock, rooted w/recovery and VRBMB1. Wiped data, cache and davlik in recovery. Booted up and did not sync any content. Called Verizon Wireless and had them reprovision my SIM card. The tech told me turn off the phone and he pushed out updated roaming and updated tower information to my phone. Booted up and after ~6 minutes 4G activated.
I have since installed CM 10.1 RC5, synced with my apps and data, and I have maintained 4G service since.
If you have a 4G phone with Verizon Wireless, do not attempt to update roaming/cell tower info by calling *228. Instead call Verizon and have them push the updated info to your phone.
I really need help with my device, I searched all over XDA and no-one seems to have the same issue as me.
Here is some information:
1) Nexus 6P (H1511)
2) 6.0.1 Absolute stock, no rom, no root, no custom recovery. Build number MMB29P.
Recently got a new Nexus 6P and imported to Russia. All of the major bands here are supported. And the phone worked excellent for a few weeks, but then it lost all 3G or GSM connectivity. Just randomly,didn't do anything with it, the only thing I did is move to another city but than I got back, the issue didn't resolve. LTE works perfectly but can't call or receive calls, can receive sms though. Reseting network settings and factory reset changed nothing. Tried manualy set network to WCDMA or GSM with *#*#4636#*#* command, the moment I switch to anything besides LTE the connection is lost. Contacted the provider, no problem on their side, my SIM works good in other phones, my phone with other SIMs - no.
I don't think it is a hardware issue because a few times I managed to get everything working after an hour of switching networks and bands with no particular order in the *#*#4636#*#* testing mode.
After a while I figured that if I set phone to "GSM only" on USA bands in testing mode, but at the same time set it to "LTE prefered" in the normal network settings menu. I am able to set phone to Band mode 7 and set the network back to 2G in network settings keeping it on " GSM only" the whole time and only after this compicated algorithm and after a reboot 2G and 3G starts working. But any reboot after that revertes everything back to only LTE stage. Also if I get everything working but than reset network settings everything stops working again.
I have no idea what caused such an issue, I really hope someone can help.
Sorry couldn't post screenshots because of the "10 posts rule".