how to lock network to 4g? - ZenFone 2 Q&A, Help & Troubleshooting

I have unstable 4g network at home, so my phone refuses to use 4g connection and it choose 3g.
I know *#*#4636#*#* and choose lte only will do the thing and it works but several times later it switched back to 3g (H/H+) and when I check it back it turned to Lte/gsm (Pre) again so I think I have to find another way.
It frustating me, since I just have 4g quota besides 3g.
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Sprint Galaxy Nexus Network settings??

I was just wondering what network settings Sprint users are you for the best signal?? What I mean is what preferred network type are you using. I have noticed since I roam at home mine is mostly on unknown but a fresh boot up of stock starts on GSM/cdma auto prl. But I get the best signal when I change it to cdma auto prl. On GSM/cdma auto prl I'm roaming but I don't get any bars and data connection turns on and off but cdma auto prl I get at least one bar in and out but data stays connected and all my texts and calls come straight through. On any other setting its no telling when I'll receive a notification could be hours or days long as I'm home. But I have noticed that having it on cdma auto prl I get slower speeds like it picks evdo rev: 0:7 and fluctuates between that rev A and 1x. There is another setting in a different menu I can't really remember what it's called I forgot the dialer code to get to the menu I think it's like ehrpd or something like that. Any help or opinions greatly appreciated I think there are settings that are making this phone so slow on data my Photon is a lot faster on 3g than my nexus but Motorola will lie about your signal unless you know better but its always got a stronger signal and faster connection. One more question does a kernel have anything to do with good or bad signals I see my phone acts different with different kernels like stronger signal faster connection and vice versa.
Thank you
Sent from my Galaxy Nexus using xda premium

Turn off 3G but keep 4G/LTE enabled?

I'm running stock ICS on a VZW Galaxy Nexus. Is there any way to keep 4G/LTE enabled but turn off 3G?
I ask because I often tether my computer at work, but there is a weak LTE signal at my workplace, and a strong 3G signal (they may even have VZW 3G repeaters in the building) and I always end up getting 3G speeds. I've tried a few app from the market "LTE onoff", "3g/4g on/off" and some others but none seem to have an LTE only option. I haven't rooted my phone yet, but would be open to rooting if there is a root only option for this. Would be awesome if someone could help!
There's app called switch pro widgets ($1) and it didn't allow you to toggle the 4g and anything else you want to adjust.
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SinghDroid said:
I'm running stock ICS on a VZW Galaxy Nexus. Is there any way to keep 4G/LTE enabled but turn off 3G?
I ask because I often tether my computer at work, but there is a weak LTE signal at my workplace, and a strong 3G signal (they may even have VZW 3G repeaters in the building) and I always end up getting 3G speeds. I've tried a few app from the market "LTE onoff", "3g/4g on/off" and some others but none seem to have an LTE only option. I haven't rooted my phone yet, but would be open to rooting if there is a root only option for this. Would be awesome if someone could help!
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no. the 3g signal is your voice service.
*#*#4636#*#*
Then phone info > LTE Only.
Do note LTE is data only, no voice.
Beamed from my Maguro.

[Q] Note 2 not auto switching to 4G?

Hi guys, I'm plenty familiar with the Note II having had mine since October release. I'm having an issue where I will be in a solid 4G coverage area (at my home) and my phone will stay in 2G mode.
There is a problem with either the tower or the phone, I'm leaning toward tower because my wife has my old Sensation 4G which is also staying on 2G. Have any of you encountered/noticed that your phone stays in 2G even though you are in a 4G coverage area? For me either on the Sensation or Note II, I just pick WCDMA, 4G pops in and works great. The only problem is that I have to remember to put it back on auto when I leave the area. I looked up and attempted the cell codes for making the phone prefer 4G, but without success there. Also my phone picks up 4G automatically when I'm at work, so again leaning toward tower (but how and why the tower can control this I have no idea).
I also noticed some threads claiming wifi calling would detect wireless networks nearby and disable 4G. I'm leaning towards BS on that because 1. my wi-fi is almost always turned off (true unlimited 4G plan), and 2. when I disable wifi calling all together it still exhibits the same behavior.
I'm running out of ideas - any help is appreciated!
vinas1 said:
Hi guys, I'm plenty familiar with the Note II having had mine since October release. I'm having an issue where I will be in a solid 4G coverage area (at my home) and my phone will stay in 2G mode.
There is a problem with either the tower or the phone, I'm leaning toward tower because my wife has my old Sensation 4G which is also staying on 2G. Have any of you encountered/noticed that your phone stays in 2G even though you are in a 4G coverage area? For me either on the Sensation or Note II, I just pick WCDMA, 4G pops in and works great. The only problem is that I have to remember to put it back on auto when I leave the area. I looked up and attempted the cell codes for making the phone prefer 4G, but without success there. Also my phone picks up 4G automatically when I'm at work, so again leaning toward tower (but how and why the tower can control this I have no idea).
I also noticed some threads claiming wifi calling would detect wireless networks nearby and disable 4G. I'm leaning towards BS on that because 1. my wi-fi is almost always turned off (true unlimited 4G plan), and 2. when I disable wifi calling all together it still exhibits the same behavior.
I'm running out of ideas - any help is appreciated!
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Click to collapse
In settings>more settings>mobile networks>network mode:
You should ALWAYS be set to GSM/WCDMA (Auto mode)
This will automatically get you the best data signal available at your location. If you only get 2G in some locations, that's normal. You can try calling TMO support and have them check your address to see if you SHOULD have 4G at that location. If you really want to try to see what is going on, install an app called Open Signal Maps form the Play store. Among other useful things, it will geolocate the towers you are connected to complete with distance and mapped street address.
Where I live I only ever get 2 or 3 bars of 2G data. I use the TMO wifi calling app for all my calls and texting. This is only way I can get reliable service at home.
vouty said:
In settings>more settings>mobile networks>network mode:
You should ALWAYS be set to GSM/WCDMA (Auto mode)
This will automatically get you the best data signal available at your location. If you only get 2G in some locations, that's normal.
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Thanks for replying vouty. When I switch from auto mode to WCDMA I have 4 full bars. That's the funny part. Speedtest is giving me around 12Mbps down 3 up on average (I live right by the tower - like .5 mile), so there is for sure something strange happening. If I keep wifi on it really isn't an issue, but I prefer to not mess with wifi and just keep it in 4G while at home, but as frustrating as this problem is, the phone refuses to switch from 2G on it's own. Once I toggle from AUTO to WCDMA, and then back to auto - it will stay on 4G. It's almost as if I am waking it up and causing the phone to re-detect the signal.
vouty said:
In settings>more settings>mobile networks>network mode:
You should ALWAYS be set to GSM/WCDMA (Auto mode)
This will automatically get you the best data signal available at your location. If you only get 2G in some locations, that's normal. You can try calling TMO support and have them check your address to see if you SHOULD have 4G at that location. If you really want to try to see what is going on, install an app called Open Signal Maps form the Play store. Among other useful things, it will geolocate the towers you are connected to complete with distance and mapped street address.
Where I live I only ever get 2 or 3 bars of 2G data. I use the TMO wifi calling app for all my calls and texting. This is only way I can get reliable service at home.
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Click to collapse
Cool app, very useful, appears I am on 3g at home. Turning off wifi to see if it changes to edge while using data.
Sent from my SGH-T889 using xda premium

3G on T-Mobile via 1900MHz Band

I recently switched from AT&T to T-Mobile, and like the rest of us was suffering without 3G due to our lack of compatibility with the 1700MHz WCDMA that T-Mobile uses. One of my friends (a T-Mobile employee), however, informed me that it is indeed possible to get 3G by using the 1900MHz band, which T-Mobile is currently re-farming to support WCDMA. This trick is simple and easy, and I've had success with it thus far, albeit only in one location as of yet. There is a downside, however... as long as the trick is in place (as long as your phone is set to "WCDMA only" below), you cannot connect to EDGE. In other words, in an area where there is no 1900MHz 3G coverage, this process must be reversed to fall back to EDGE. As such, you may lose connection randomly and be completely unaware of it for hours, and I will mock you openly for attempting to blame me if you lose your job because you missed a call from your boss, lose your girlfriend because you stopped texting her, or lose your bacon because your remote bacon-protection app couldn't connect.
Remember, this is in the testing phase. It WILL get better over time and hopefully one day we won't even have to consider whether a phone supports 1700MHz... for now, though, report your findings below, preferably with location, signal strength/type, and down/up speed.
==PROCEDURE==​
Go to dialer and enter *#*#4636#*#*
In the menu that pops up, tap "Phone Information"
Scroll down to the menu labelled "Set preferred network type" (it should be the first one) - this will likely be set to WCDMA preferred
Change it to WCDMA only
Switch to your main Settings app, then navigate to "Mobile Networks" (under "More..." by your Wi-Fi and Bluetooth)
Tap "Network Operators" and wait for the search to complete
Tap T-Mobile if it appears in the list
Once the phone has acquired a signal, you can return the Network Mode setting to WCDMA Preferred. Your phone should now switch back and forth between EDGE and HSPA+ fairly reliably.
===My Results===​
At my home (approx. Colfax and Yosemite in Aurora, CO) I get 0-2 bars, mostly 3G but some H+ if I'm holding my phone and moving around, and 2-3 bars H+ if I set my phone down. Speedtest results range between 4 and 10 Mbps, with around 90ms ping. I've been keeping my phone set down with wireless tethering enabled, and it's been 100% usable thus far.
--Update--
Having used it daily for a few weeks, I'm pleased to report that there is moderate to good connectivity to at least 3G in most places. I still find myself on EDGE regularly, but I usually can get a WCDMA connection. Now, however, I'm annoyed because I exceeded 5GB data usage and am being throttled to below-EDGE speeds, which defeats the purpose of having 3G. >_<
what about AWS band ????/ its work
saqi4you said:
what about AWS band ????/ its work
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Almost certainly not; see here.
If you have it working for some reason, go over there to tell everyone.
I'll test this later tonight. I'd be cool with 3G or H+ if it works. I have a T-Mob pay-by-the-day sim card that I'd like to use to tether my Nexus 7 to when I'm traveling (which is fairly rare).
I'm new to all this but how is this different from changing the APN settings?
Is this method better than changing APN settings?
This didn't work for me, Portsmouth, NH. It picked up the T-Mobile network in Network Operators but when I tried to select it it took forever and then said unable to connect, failed to register. Attempted a few times on a ucdlk3 stock based custom rom (Intergalactic II) and also on stock rooted.
Probably just not in a good location for this to work.
Sent from my Nexus 7 using xda premium

LTE and 3g handoff problems

I just came back to sprint from Verizon and I have 4g in my area but its weak at my house. My problem is this. Ill habe tje 4g icon in the status bar but it wont do anyrhing cause its so weak but I cant get 3g to come on and sometimes when I switch off wifi I have no data at home until I reboot or toggle airplane mode. Its like its not switching between 3g and 4g properly. Anyone else have this problem? I just got the phone 3 daya ago and want to make sure its not my phone. Ill also have trouble when it does finally show 3g from 4g it takes a while bwfore the 3g will even give me internet access. Thanks for all the help guys.
Also I know I can just switch to evdo mode and it works fine thwn but its a oain to switch it to lte when I keave cause when I leavw the house I get good 4g service.
Sent from my SPH-L900 using xda premium
musclehead84 said:
I just came back to sprint from Verizon and I have 4g in my area but its weak at my house. My problem is this. Ill habe tje 4g icon in the status bar but it wont do anyrhing cause its so weak but I cant get 3g to come on and sometimes when I switch off wifi I have no data at home until I reboot or toggle airplane mode. Its like its not switching between 3g and 4g properly. Anyone else have this problem? I just got the phone 3 daya ago and want to make sure its not my phone. Ill also have trouble when it does finally show 3g from 4g it takes a while bwfore the 3g will even give me internet access. Thanks for all the help guys.
Also I know I can just switch to evdo mode and it works fine thwn but its a oain to switch it to lte when I keave cause when I leavw the house I get good 4g service.
Sent from my SPH-L900 using xda premium
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4G is always a priority over 3G if you have it enabled. There's no way around it unless you switch lte off. So if you're in a weak 4G coverage and your phone gets the signal it will take over your 3G. Wifi is always 1st priority, 4G 2nd, then 3G, finally 2G. As long as those radio are on that's the order they work. Was always like that even in wimax devices. Switch to cdma while at home or connect to wifi.
Sent from my SPH-L900 using xda app-developers app

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