I had this phone for a while, put it in storage (my desk) and then gave it to a family member. After putting sim card and flashing latest slimrom 4.4.4 SGH-M919 (baseband m919uvuamdl)
wiped phone etc... restored msgs and few things.
Everything seemed fine, after phone goes to sleep for a min or two, it shows then no service!
So I tried all apn settings etc... switching from 4g to 3g, then did 2g and boom it stays connected on 2g without issue.
So went and got a new sim card, apparently this was very old 2g sim card that I cut to fit into adaptor.
Does anyone know what is the issue? the new sim is having exact same issue and only works on 2g, if putting it to 3g or 4g, it works for a while, but after it goes to sleep and you wake it it shows no service.
Also this kills the battery as the phone seems to be trying to connect?
Should I flash the rom again? do I need different baseband? flash to older version of rom?
drutort said:
I had this phone for a while, put it in storage (my desk) and then gave it to a family member. After putting sim card and flashing latest slimrom 4.4.4 SGH-M919 (baseband m919uvuamdl)
wiped phone etc... restored msgs and few things.
Everything seemed fine, after phone goes to sleep for a min or two, it shows then no service!
So I tried all apn settings etc... switching from 4g to 3g, then did 2g and boom it stays connected on 2g without issue.
So went and got a new sim card, apparently this was very old 2g sim card that I cut to fit into adaptor.
Does anyone know what is the issue? the new sim is having exact same issue and only works on 2g, if putting it to 3g or 4g, it works for a while, but after it goes to sleep and you wake it it shows no service.
Also this kills the battery as the phone seems to be trying to connect?
Should I flash the rom again? do I need different baseband? flash to older version of rom?
Click to expand...
Click to collapse
Try a different rom....if that doesnt work...then flash the stock firmware with odin (twice to make sure it sticks) and see if its fixed.
I went and did one of full firmware over Odin
http://forum.xda-developers.com/gal...in-firmware-kernel-modem-recovery-tw-t3276231
you know whats crazy? it worked but it kept the old apps and accounts? Half the stuff didnt work, so I went and did a factory reset, that wiped everything and now the phone seems to be back to stock and working properly.
crazy, never thought that a ROM update could mess things up for the radio?
Related
So I've had this phone for over two week now, and I rooted it and flashed it with FrostyJB v5. Everything was running well (excluding the battery life, which was better in v4 but that's a different topic). I was at my school connected to their wifi earlier tonight and when I left school, I can't make any phone calls (i have a circle with a slash through it where my signal bar would normally be). I think it has something to do with my APN or network or something? I'm honestly new to this. I would appreciate it if some one could help me solve this problem. The phone is a T-Mobile phone, which I bought from a T-Mobile dealership. The SIM was working properly until tonight. I tried removing the SIM and rebooting, putting the SIM back in, rebooting. etc.
TLDR: My 4G doesn't work, I'm not connected to any APN, my phone is rooted and flashed with FrostyJB v5 but I bought it from a T-mobile dealership with a T-mobile sim card. Help. Please.
I can provide addtional information if needed
Is your imei still there? Check it in settings/about phone. And are you sure airplane mode is not checked? Were you doing anything developement wise when it went out?
sent via galaxy s3 in boss mode @ 2.1ghz
tgamble160 said:
Is your imei still there? Check it in settings/about phone. And are you sure airplane mode is not checked? Were you doing anything developement wise when it went out?
sent via galaxy s3 in boss mode @ 2.1ghz
Click to expand...
Click to collapse
my imei is still there. it is not in airplane mode. I can't connect to my 4G or my T-Mobile network. I was not doing any development when it suddenly turned off. I was walking out of my school around 11:00pm CST (if it helps, I get no reception at my school's building). I turned my wifi off and turned my 4G on via drop down menu and it wouldnt connect. I tried rebooting my phone several times, using HOT BOOT and REBOOT.
Can an mod/admin close this thread out? I solved the issue. You need to turn off wifi calling for it to work. dur. sorry
My original battery was draining fast and wasnt fully charged so before work I threw in an anker battery I've had for about a year. Phone booted fine until I went to make a call and there was no network connection.
Since then I've put the original battery back in, restored my last backup before cyanogen 10.2.1 rc , and then flashed 10.2.1 stable. I reflashed my modem and then flashed the newest modem.
No luck. WiFi still works. Did I somehow fry the radio with the battery change? Not sure what could have happened
Also imei still 14 digit
So I tried the sim in an old phone I had. Still no network. I took it to a local store and had them change the sim still nothing on either phone. They popped the sim into one of the phones they had there and the network connected. The only difference between my phones and theirs is mine are rooted and running cyanogen. I'm confused. I also flashed stock firmware 4.3. Still nothing, though wifi calling and texting does work so I think the sim is ok.
Hi all,
Im on Viper Rom 6.2.1 Rom, Elite Lunar Kernel, and latest OTA radio.
My 4G connection is great when connected, I hit the 40s and 50s download speed.
The problem im having is that when the data connection is idle for like 30 seconds, all of a sudden I lose data connection. the 4G LTE logo is still showing but the download/upload activity arrows no longer flashes. It goes back when I turn mobile data off then on again. Then I lose connection again when idle.
What could be the problem?
Thanks
android06 said:
Hi all,
Im on Viper Rom 6.2.1 Rom, Elite Lunar Kernel, and latest OTA radio.
My 4G connection is great when connected, I hit the 40s and 50s download speed.
The problem im having is that when the data connection is idle for like 30 seconds, all of a sudden I lose data connection. the 4G LTE logo is still showing but the download/upload activity arrows no longer flashes. It goes back when I turn mobile data off then on again. Then I lose connection again when idle.
What could be the problem?
Thanks
Click to expand...
Click to collapse
I just had a similar problem recently like this. Turns out i burned out my 4g sim card. Before changing roms or firmware i would suggest going into a VZW store and get a new one. They are free, they dont even look at the phone. Just tell them LTE connectivity isn't working correctly and that the sim card is bad. they will give you another one.
synisterwolf said:
I just had a similar problem recently like this. Turns out i burned out my 4g sim card. Before changing roms or firmware i would suggest going into a VZW store and get a new one. They are free, they dont even look at the phone. Just tell them LTE connectivity isn't working correctly and that the sim card is bad. they will give you another one.
Click to expand...
Click to collapse
Thanks. I figure it was probably the sim card. I will try that.
I am having a similar situation. I have data loss after having hotspot on for a little while and any type of reboot is the only remedy (restart of shell, full reboot, adb reboot, etc). I already swapped Sims at the Verizon store, tried different roms, tried flashing different firmware and radio combinations. Any suggestions?
Sent from my HTC6500LVW using XDA Free mobile app
Uzephi said:
I am having a similar situation. I have data loss after having hotspot on for a little while and any type of reboot is the only remedy (restart of shell, full reboot, adb reboot, etc). I already swapped Sims at the Verizon store, tried different roms, tried flashing different firmware and radio combinations. Any suggestions?
Sent from my HTC6500LVW using XDA Free mobile app
Click to expand...
Click to collapse
I too am having similar issues, though it appears more random than associated with using hotspot.
Every few hours, all radio connectivity but Wifi shuts off. I get the no service icon in the status bar. Only a reboot fixes the issue.
Running teamEcliptic Rom 4.4.3 v1.4, kernel: EliteLunar 3.4.10, baseband: 1.13.41.0421, build: 6.06.401.1.
Soff, unlocked, root, etc.
When I have time to spare plan to restore a stock rom (keeping S-off though) to see if that fixes the issue.
Any advice from those more versed in the One M7 would be appreciated!
I have the LG-VK810 from Verizon. It worked fine last night while playing PoGo. Plugged it into the charger before bed. Woke up this morning and everything works except for my 4G radio. I have 0 signal. No bars.
I have factory reset the tablet, pulled and put the sim card back in, checked my mobile network settings.. nothing is bringing my signal back, has my radio just burnt out?
If so, I have a spare VK810 that doesn't work, would it be possible to simply swap the radios?
Thanks in advance.
Have you checked in other areas to see if data is working? Checked in Settings / About to make sure it still has an IMEI?
Are you running completely stock (non-rooted) 36B?
Try a SIM from another device?
I thought it may have been an update to my app (Amazon Flex), so I rolled back to a previously saved version, but the issue persisted.
If I dont have a sim in the phone, the app will say that it cant get an accurate GPS location. Tried rebooting, airplane mode, clearing and redownloading the AGPS data.
The only thing that makes it work is inserting a sim card.
This device has LTE issues for me, so I prefer to just leave it on WIFI tethered to another device. But due to this issue, I have to remove the sim from my primary phone to make this phones GPS work.
Still havent figured out whats going on. I've just left the sim in there. If I can at least get the LTE to stay on consistently, then I'll be happy.
Scouring the forums right now trying to find posts relevant to me.