Database Users

Sprint S4 LPH-L720 Drops Data

The history of my S4 LPH-L720:
1. I bought this when it was first released in May of 2013.
2. I've been using custom roms for a solid 2 years and the issue just started within the last 6 months.
The problem:
1. Recently it's been dropping the data connection completely, which requires me to cycle airplane mode to get it back (cycling Data Connection does nothing).
2. This happens with LTE and EVDO connections, but if I force it to CDMA (1X) then I don't experience the data drops.
3. This is happening with multiple Sprint towers as well.
My questions for the community are:
1. If my phone is slowly dying then I'm considering another Sprint S4 (L720 not the L720T) on eBay, but I wanted to see if others with the original S4 are having similar issues with data connections, in case it's a Sprint specific thing.
I need the non-spark model because I can use voice and LTE data at the same time. This is very handy when I need to tether and still use my phone.
2. Are their any Sprint LTE bands that this phone is incompatible with that could be causing this issue?
Thank you for your input!

moovius said:
The history of my S4 LPH-L720:
1. I bought this when it was first released in May of 2013.
2. I've been using custom roms for a solid 2 years and the issue just started within the last 6 months.
The problem:
1. Recently it's been dropping the data connection completely, which requires me to cycle airplane mode to get it back (cycling Data Connection does nothing).
2. This happens with LTE and EVDO connections, but if I force it to CDMA (1X) then I don't experience the data drops.
3. This is happening with multiple Sprint towers as well.
My questions for the community are:
1. If my phone is slowly dying then I'm considering another Sprint S4 (L720 not the L720T) on eBay, but I wanted to see if others with the original S4 are having similar issues with data connections, in case it's a Sprint specific thing.
I need the non-spark model because I can use voice and LTE data at the same time. This is very handy when I need to tether and still use my phone.
2. Are their any Sprint LTE bands that this phone is incompatible with that could be causing this issue?
Thank you for your input!
Click to expand...
Click to collapse
Have you updated your PRL and Profile any time recently?
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bilgerryan said:
Have you updated your PRL and Profile any time recently?
Click to expand...
Click to collapse
Yes. I had to reflash the stock rom to update PRL and Profile, then I reloaded by custom rom.
I may try this one more time though, by going with the stock rom for a week and see if it keeps happening.

Call remain in cellular network?

When I place a call I get a popup saying:
"Call remain in cellular network. Voice and data charges will apply."
Does anyone know what this is?
I have the AT&T S7 on Cricket.
I only get this when I have WiFi on, so I was thinking something to do with WiFi calling, however I do not think that AT&T even have WiFi calling for the S7 and if they do I have no idea how to turn it off.
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Yes I get it on every call. Same as you, I'm using AT&T s7 edge on cricket. I'm curious what it is also.

Same thing is happening on my wife's Galaxy S7 (not edge) on Cricket. But it isn't happening on my Galaxy S7 (also on Cricket).

Do you have wifi calling enabled? Maybe this is letting you know it is not using wifi for the call. Just a guess
Sent from my SM-G935F using Tapatalk

I think it's this enhanced lte services, but I'm not sure, I'll test out in a sec
Edit::
Nvm, that's not it either. Turned it off and still saying it

I'm not in the US myself so I don't know much about AT&T. However, after some research the best I can find is with AT&T Dual-Mode Mobile Voice. Is it possible this could be the cause of this message?

CuBz90 said:
I'm not in the US myself so I don't know much about AT&T. However, after some research the best I can find is with AT&T Dual-Mode Mobile Voice. Is it possible this could be the cause of this message?
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Click to collapse
So essentially Wi-Fi calling. I know they enabled it for iPhone last year. Possible maybe they are doing testing with the s7/s7 edge

If it is WiFi calling I just want to know how to turn it off.
This popup is annoying and in the way of the buttons.

I get the same thing when placing a call on my s7 AT&T

I have both the S7 and the S7 Edge and get the notification whenever I place a call on either of them while I have WiFi on.

did anyone figure this out .. have the same issue .. def gets in the way

I'm talking to Samsung right now. I'll post if I figure it out.

This is the response I got from Samsung.

It only happens to me when wifi is on but very weak. Probably a holdover from the wifi calling routine that doesn't get disabled when wifi calling is off.

no 4g data connection

Hi forreros!
First off, my appologies if this has been asked/answered. I've searched the forum for 4g/data connection/mobile data, etc but haven't found anything on it.
My A1 won't connect to 4G networks. I've had it a week and it's hit and miss. It updated to 8.0 last night. Now it's worse. It won't connect at all.
It's the global version. I'm in the UK. I use a Vodafone UK SIM and a Spanish Vodafone SIM. I use the Spanish SIM for data. Roaming is enabled (the APNs that the Vodafone SIM configures automatically for network connections are airtelnet.es and airtelwap.es)
I've done some troubleshooting...
I've found that when I make a phone call while the A1 is connected to a 4g signal the data connection starts working and, for example, Whatsapp messages enter while the call is live or web pages load. But, when I hang up the call the data connection is lost.
I've changed the Preferred Network Type to 3G on the Cellular Network Settings page. Data connection works fine when I tell the phone to only connect to 3G.
But, I switch it back to 4G and the connection is lost. A little "x" appears in the bottom right corner of the network data strength icons in the upper status bar. The little arrows that appear next to the icons also don't work... only the ^ (up) arrow appears. The down (download) arrow stops appearing.
I've also read online that by dialing *#*#4636#* #* you can change the Preferred Network Type. I've tried 3 different ones (the original one chosen was TD-SCDMA/CDMA/UMTS) and none of them fix the problem.
There are some screenshots attached. Can this be fixed? I want to make a decision ASAP. If it can't be easily fixed, I need to notify GearBest and get it replaced/return it.
Thank you.
Ray
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Hello biggun3791,
any update on this? I've recently bought 3 Xiaomi A1 phones and on one of them there is same issue you faced. Please let me know your findings.

I got the same issue, asked help for it before but no real help was given.
The most annoying part is that even if you get it working again, that service menu's settings don't stick, it will revert at a random point in time. Planning on selling this phone and just moving on to a more reliable one.
reboot seems the only temporary fix for this...

One + 6T on Verizon- wifi calling

Hello. Im looking for some information about how to possibly set up wifi calling on the new One + 6t. I've scanned every forum on the web pertaining to this issue and for the life of me can't get 100% verification on whether or not it's viable on a paid Verizon plan. This attempt to gather knowledge is on behalf of my friend who obviously is on the "Big Red" network. I also have the new 6T but I'm on good ole' Cricket. My friend has crappy Verizon coverage at his house so wifi calling is important. A signal booster is the next step but he doesn't want to go there yet for cost reasons. I advised him to contact Verizon tech 2 tier support and register his 6T as a CDMA only device which he did. The voLTE symbol now comes up on his phone but he still does not have the ability to switch on the wifi calling feature on his 6T. I also instructed him to input *#*#4636#*#" on his dialer and try to backdoor the process. Unfortunately this was a done in vain and to no avail. Does anyone on here have any suggestions? Verizon did not say they were going to block the wifi calling on the account. Am I missing something here? Some feedback would begreati appreciated. Thanks. Also I've been creeping around this site for years but finally decided to join tonight.

Twistorange said:
Hello. Im looking for some information about how to possibly set up wifi calling on the new One + 6t. I've scanned every forum on the web pertaining to this issue and for the life of me can't get 100% verification on whether or not it's viable on a paid Verizon plan. This attempt to gather knowledge is on behalf of my friend who obviously is on the "Big Red" network. I also have the new 6T but I'm on good ole' Cricket. My friend has crappy Verizon coverage at his house so wifi calling is important. A signal booster is the next step but he doesn't want to go there yet for cost reasons. I advised him to contact Verizon tech 2 tier support and register his 6T as a CDMA only device which he did. The voLTE symbol now comes up on his phone but he still does not have the ability to switch on the wifi calling feature on his 6T. I also instructed him to input *#*#4636#*#" on his dialer and try to backdoor the process. Unfortunately this was a done in vain and to no avail. Does anyone on here have any suggestions? Verizon did not say they were going to block the wifi calling on the account. Am I missing something here? Some feedback would begreati appreciated. Thanks. Also I've been creeping around this site for years but finally decided to join tonight.
Click to expand...
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I believe that on Verizon you are out of luck when it comes to WiFi calling.
Sent from my iPhone using Tapatalk

Ugh

Twistorange said:
Ugh
Click to expand...
Click to collapse
AT&T & Verizon VoLTE and VoWiFi calling/texting thread
https://r.tapatalk.com/shareLink?sh...ers.com/showthread.php?t=3860031&share_type=t
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Thanks

OP 6T on Verizon in Canada losing signal.

Decided to go to Canada for the weekend. Seems I randomly lose service, and need to reboot to get a signal again. Everything under Phone Info appears fine, and says I'm not roaming. Anyone else had this issue?

I'm in Verizon in Washington state and my phone has started doing the same thing today. Happed 5 or 6 times today while using YouTube, YouTube TV, Amazon app, and chrome. I was using 1.1.1.1 DNS will change that to see if it makes a difference. Has your problem continued?

replica9000 said:
Decided to go to Canada for the weekend. Seems I randomly lose service, and need to reboot to get a signal again. Everything under Phone Info appears fine, and says I'm not roaming. Anyone else had this issue?
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xsirex said:
I'm in Verizon in Washington state and my phone has started doing the same thing today. Happed 5 or 6 times today while using YouTube, YouTube TV, Amazon app, and chrome. I was using 1.1.1.1 DNS will change that to see if it makes a difference. Has your problem continued?
Click to expand...
Click to collapse
I've had the same issues periodically. swapping sim slots has worked for me. give it a shot.

So it turns out my VZW plan was so old, it wasn't giving me the option to roam on other networks (travel pass).
I recently went to Germany and had the issue of having service, but sometimes no data. There's an option that sometimes appears when roaming called Network Operators under Settings > Wi-Fi & internet > Sim & Network > SIM 1 (or SIM 2) that'll manually let you choose which network to connect to. I'm my case my phone automatically connected to "o2 -de" network, and I had to manually choose "telekom.de" network to get calls and data. Unfortunately, I didn't take screenshots while abroad, but this is what it looks like at home...
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