Database Develop

[Q] Intermittent Data Network after flashing rom

On stock 2.1, I get 3G practically everywhere I go, but when I flash a rom I always get the H or E symbol and sometimes it randomly goes dead even though I just had H or E in the exact same spot... What could I do to improve this?

H is another symbol for 3g lol ithink all builds have this
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Sent from my LG-P500 using XDA App

switch to another modem to see if it helps.

mengbo said:
switch to another modem to see if it helps.
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Tried JI6 - I'm using Serendipity 5.8 and it's the same. I get like 4 bars, then it jumps to 0 and randomly I have no connection. I forgot to note, it is for both Data and Voice networks...
If it helps, I'm in Orange County and when I do Speedtest my scores are abysmal on "H" I get 270KBPS down and 130 KBPS up.

The "H" is 3.5g a little faster than 3g. If it keeps alternating between "H" and "E", I would definitely consider flashing a new modem.

MastaBetta said:
The "H" is 3.5g a little faster than 3g. If it keeps alternating between "H" and "E", I would definitely consider flashing a new modem.
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Click to collapse
I've flashed 3. All of them do this. :/
Highest I've gotten on Speed test is with Jk4 and it was like 800kbps download... And it's usually around 200-300.

have you tried to disable HSPA? To do so, go to your dialer>type *#301279#
select [2] then select [1] . see it that helps
*edit* If that doesn't work, put the phone in airplane mode for a few minutes and re-enable.

MastaBetta said:
have you tried to disable HSPA? To do so, go to your dialer>type *#301279#
select [2] then select [1] . see it that helps
*edit* If that doesn't work, put the phone in airplane mode for a few minutes and re-enable.
Click to expand...
Click to collapse
Thanks man. Trying it now, will report back soon...
Still iffy... I dunno but I dropped my old phone in water with the SIM card. I got a new one, but could it be the SIM card that's damaged?

It very well could be the sim card.
Hope you get your phone working again!

MastaBetta said:
It very well could be the sim card.
Hope you get your phone working again!
Click to expand...
Click to collapse
Any ideas on how to get a new one? I don't want them to see the custom rom, but how could I tell them I'm gettin iffy service without showing up with my phone?

[MOTO X XT1052 ] Time without signal

i wrote about my problem losing signal whlie switching 3G-2G 2G-3G
I live in an area where the 3G signal is not very strong, and it happens that the phone changes alone in 2G mode, then return to 3G when the signal is better..
It happens, however, that during these steps 3G-2G or 2G-3G phone loses the line, so that in that passage i'm not contactable if someone phone me, I realize that I get the SMS notification later.
I noticed that the indicator of the phone signal is reset, and I can not even call. As an indication of the lack of signal is about 4-5 sec
With other devices like Galaxy S2 and Motorola Defy+, in the same place with the same operator and sim didn't happens...
Click to expand...
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I look this on SETUP/Battery/Cell Standby
time without a signal x%
sometimes is abot 1% and sometimes even 7%,
can you have a look about your devices?
Thanks
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Can you help me?

8% on my XT1060. Sucks working in a dungeon where nobody has cell service.

nhizzat said:
8% on my XT1060. Sucks working in a dungeon where nobody has cell service.
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Click to collapse
Thanks

I've had time without a signal up to 25%. However the phone had a signal pretty much the entire time but it was HSPA instead of the preferred LTE. The time without a signal seems to indicates how much time the phone does not have the preferred signal protocol, not the time it actually had zero signal, in my case anyway. Upstairs at home I have LTE, in the basement I only get HSPA so it is easy to see.

I'd only be concerned if your battery life is bad, with no obvious culprit. Then it may be your signal strength. And Gsam and other apps won't show you that signal killed your battery. But its always a good guess when your signal is suspect and nothing else shows up in Gsam.

battery drain is ok, but why the phone lost signal if there is good signal field?????

[Q] Frequency Band messed up

Hey guys,
it seems like i messed up my frequency band on my i9305.
i installed an app to change my network status to WCDMA only as the signal at my working location is very low and my phone automatically switches to edge (which i dont want it to)
The app itself is just a shortcut to the service menu.
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Changing the network mode worked fine, but i accidently tapped the menu button AND changed the frequency band to USA while holding the phone in my hand without watching the screen.
my question is:
how can i change it back to EURO band?
as you see, there is no option for that.
i switched the preferred network mode back to LTE/GSM auto (PRL)
as you can see on the first screenshot, it shows -81 dBm 59 ASU for the signal strenght.
so for me (im a noob at this) it seems like the phone actually recognizes there is a network but it doesnt connect to it because it is set to USA band. May that be right?
However, i need to know how to switch back to EURO band, flashing another modem didnt help at all.
can i do that with adb for example?
(com.android.settings.BandMode) << scratch that.... am start -n com.android.settings/.BandMode in adb gives me the same options of course (USA Band, Cellular 800, PCS 1900)
Please help me somehow
Edit: to clear things up: When using *#06# it still shows my imei. it also shows the baseband in the phone info under settings.
if i get it right that means that the efs partition is still okay.
i have no idea what could be wrong

Update:
Looks like i solved the problem.
i just flashed a lollipop cm12 rom + gapps, flashed the modem again and voilà.
I even have a better signal now due to the new modem.
After that i went back to the nameless lollipop rom and everything is still fine.

Force LTE only without root access, Huawei P30 Pro

I would like my phone to always reconnect to the network once it looses LTE bandwidth.
The thing is that the provider gives me LTE for the first few minutes, but then reduces my speed to HSDPA
So what I need is an app that goes into the airplane mode for just one second and then reactivates the connection.
I found out that rooting my phone is impossible and all the apps that I tried do not work without root.
I downloaded about three different apps all claiming to provide a "Force LTE" experience.
Any suggestions on how I can achieve the goal of auto reconnecting to the network in case my bandwidth drops lower than LTE?
It wouldnt be an issue if I would be actively sitting on the phone, but I am using it as a hotspot with the phone at the window to have best connectivity.
Greetings from Venezuela!

adamlee2012 said:
Download this app and change the numbers I've circled in red to just "11" and reboot. You'll have loads more network choices.
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Thanks, I did, this is the result:
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(I cant post a link nor add an image as I am a new user)
https(slashslash)imgur.com/a/y1vVc6g
It appears to me that the provider doesnt allow me to choose LTE only? Is that possible?

Dr. Dolittle said:
I would like my phone to always reconnect to the network once it looses LTE bandwidth.
The thing is that the provider gives me LTE for the first few minutes, but then reduces my speed to HSDPA
So what I need is an app that goes into the airplane mode for just one second and then reactivates the connection.
I found out that rooting my phone is impossible and all the apps that I tried do not work without root.
I downloaded about three different apps all claiming to provide a "Force LTE" experience.
Any suggestions on how I can achieve the goal of auto reconnecting to the network in case my bandwidth drops lower than LTE?
It wouldnt be an issue if I would be actively sitting on the phone, but I am using it as a hotspot with the phone at the window to have best connectivity.
Greetings from Venezuela!
Click to expand...
Click to collapse
The method is very easy:
1. Use SIM 1 as the default connection setting
2.
You need to install this app for FREE
at Google Play
https://play.google.com/store/apps/details?id=com.teknokia.force4glteonly
pro version : https://play.google.com/store/apps/details?id=com.teknokia.force4glteonlypro
galaxy store: https://apps.samsung.com/appquery/appDetail.as?appId=com.teknokia.force4glteonly
pro version : https://apps.samsung.com/appquery/appDetail.as?appId=com.teknokia.force4glteonlypro
3. Run the application, press the SIM 1 only or Android testing button. You will enter two LTE Switcher options and also 2 Android testing options.
4. You can try all of them which support your phone.
If the telecommunication operator you are using does not support VoLTE (Voice over LTE) and uses LTE Only Mode, so regular calls will be blocked.
for complete detail with video. you must going to teknokia site

"Automatically select network"

In my Pixel 5's Mobile Network settings, there is an option entitled "Automatically select network".
I use T-Mobile as my carrier. My question here is, is it better to leave this enabled or disabled? And also, why? (See attached)
My phone was showing that it got the "5G Standalone (SA)" update cuz under About Phone and SIM status, it showed "NR SA" (NR = New Radio) just after I saw an article saying Google just put this update out last week. That was a couple days ago. Then I saw it had gone back to non-standalone (NSA) again (Mobile Data) and LTE (Mobile Voice).
So then I went back to Network settings and disabled Automatically select network, and it went back to "NR SA" again (for both Mobile Voice & Mobile Data). (See attached)
What do you guys think? Any negatives to leaving this disabled?
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There shouldn't be any negatives to leaving it disabled.

So I spoke to Google, and I realize now that this option really doesn't make any difference enabled or disabled. So yes, I agree swangjang.
I also came to the realization that what was much more likely affecting the "NR SA" status was the new "Adaptive Connectivity" option being enabled in Call/Network settings. This settings switches the phone to 4G LTE when you're doing simple things like texting or web browsing, and for bigger things to 5G. It helps to save battery life, but I don't really like not being in 5G for as much as possible, even for web browsing. So I turned it off.
(**So now I consider this issue to be resolved.**)
Now that I did, I notice that the SIM status went back to NR SA right away, and pretty much stays in that status at least MOST of the time. So I guess this was the issue, not "Automatically select network". So I recommend anyone who wants to be sure their phone is in NR SA status more often or most of the time (esp once your carrier upgrades your local cell towers to NR SA status!) to disable Adaptive Connectivity immediately. SA will give you the better version of 5G which again does NOT piggyback on 4G LTE towers to work (aka NSA). This version I believe offers better range, service, speed, and building penetrability.
In my area (Chicago and nearby suburbs), T-Mobile has not yet upgraded my local towers to NR SA (I called them and they were able to check this for me on their end), so it's not a big deal yet. But my guess is by this summer they prob will, so I'd prefer to be ready since my Pixel now has this capability thanks to the most recent February update.
Let me know if you guys have any questions!