Switch CDMA/LTE and CDMA Only mode. - Motorola Droid RAZR

This is something I would expect would be exposed. Obviously the driving point would be to create a widget for disabling LTE when not in an LTE zone (also sometimes when on Wifi it likes to pick back up on 3G, but not LTE, until manually cycling this, as where cycling Airplane mode just hangs the data connection alltogether).
So I guess ultimately what I'm asking is, is there a command on the TBolt or Bionic that does this? If so I would imagine it would work the same on here given it's gingerbread, like the bionic, using the same modem as the bionic.
And does toggling that mode shut off the LTE radio, or does it just not use it.

Related

[Q] Phone prefers 3G to 4G??

I have noticed that my phone seems to prefer 3G data to 4G where I live. (I'm in the Stow, OH area for those curious)
At first I thought I simply didn't pick 4G up at my house because I've never had the strongest 3G signal here either. But if I go into the Phone Info and switch the radio to "LTE mode", it switches to 4G no problem.
For some confirmation that the software wasn't being glitchy, I did a speed test and got ~5mbit down (like I said, I may not have the best 4G coverage... I get upwards of 18mbit when I'm in the Akron area). And for additional confirmation, I placed a call and was also able to simultaneously surf and do another 5mbit speed test. So it is definitely connected to 4G.
For more experimentation, I switched it back to the usual "CDMA + LTE/EvDo auto". The icon switched to the 3G symbol. I then tried placing a call, and I was able to simultaneously use data, but it was clearly 3G speed. So it seems it used the 4G radio for the call, but the 3G radio for the data (weird).
So, I'm wondering if anyone else has noticed it this kind of behavior? Perhaps in the fringe coverage areas this will be most noticeable.
My phone dose this too. I think its poor 4g service and stuff. Im sure it will inrpove eventually
Interesting...
Now I put it on the "CDMA Auto (PRL)" option. speed test indicates 3G speeds. But then I place a call, and the call AND data are both working-- at 3G speeds. So maybe this was what was happening on the CDMA + LTE mode I selected before.
It appears Verizon has some sort of simultaneous 3G technology now?? I wasn't aware of this-- certainly about time, though.
But my initial conclusion does seem to be true-- it's preferring the 3G coverage to the 4G coverage. Perhaps this is a battery life decision. Or something else completely weird is going on.
Either way, I'm plenty happy with the phone.

[Q] 4G drops to 1X

I recently upgraded from the Incredible to the Rezound and find that when 4G not available, the signal drops down to 1X. Not only that, it seems to stay in 1X even when 4G is available. How can I get the phone to drop to 3G when 4G not available? The Incredible ran in 3G in the same areas that the Rezound drops to 1X. What do I have to set to get it into 3G?
Thanks for help.
both my GF and I have been having trouble with this on both our phones... We both live and work in 4G coverage, pretty strong coverage too. Yet we both see 4g drop out to 3g or 1x. Its very random, and I've had it happen right in the middle of browsing the web. (All of a sudden a page takes forever to load or doesnt and the phone acts like it has no data connection, I go to the home screen and see that I am all of a sudden on 1x..)
I recently read an article that talked about how VZW actually has a pretty major issue they need to resolve pertaining to authentication on the LTE network. I don't know the exact mechanics of it, but basically the authentication fails and you get booted off the LTE network until the phone tries to hop on it again. Right now, the two phones I have personal experiance with do not try very often to get back on and it often takes going into the wireless settings page and selecting mobile networks and going in and out of that screen a couple times, or if it is being stubborn, airplane mode, site for a minute, and then back on. Occasionally I have to reboot the phone.
It really irritated me good last night when I really needed the data connection for GPS navigation because I took a wrong turn in an unfamiliar area..
Sometimes going in and out of airplane mode helps or restart.
I'm not going to say look on the forums. Here is a quote from another thread and linked another thread.
had the same issue and fixed by this.
racingtiger03 said:
Dial ##778#, call
edit mode
password is 000000
modem settings
Rev. A
select "enable"
menu > commit
phone will reboot and you should get 3G back
This changes your network from eHRPD back to EVDO Rev.A. For LTE phone owners, eHRPD causes 3G to die (most of the time anyway) when the LTE network has problems. Get back on normal EVDO and you're good to go.
^ from Jntdroid on another forum (not sure if we're allowed to post to other forums here) I'm not positive on where he got it from, but this is a capability of all HTC 4G phones
I've had occasional issues with being down to 1X, but even that was only during nationwide 4G network issues, definitely get in touch with VZW about that... not that they have enough sense to fix anything *sigh*
Click to expand...
Click to collapse
Good luck. It's what fixed mine.
Sent from my rezound using xda premium
I have the same problem sometimes. Well most of the time actually. =(
Sent from my 4GHz Quad Core G1
I have the same issue periodically ..tho I live in a non lte area..so your suggested solution prob wouldnt be a good idea ey
Sent from my ADR6425LVW using Tapatalk
Same issue here. Only happens when I go from a 4G area to a 3G area. I end up getting stuck in 1x. The phone switches fine from 3G to 4G. But when going back to a 3G only area, it by-passes 3G and I get 1x.
No toggling helps. I have to reboot to get 3G back. I also tried that fix posted above. It does not help. Called verizon again tonight.
The strange part is before we had that 4G outage a few months ago, the phone would switch just fine. Now it's a pain in the ass.
Sorry it isn't helping. It worked in mine and done exactly the way it told me. Go from 3-4g now without an issue. No 1x like before
Sent from my rezound using xda premium

[Q] CDMA- eHRPD, EVDO Rev. A, &Wifi- 2 phones different results

So, I S-offed my phone a while ago. I finally convinced my wife she should let me S-off her phone a day ago.
After S-off, I flashed the newest ICS leak (2x to make sure the RUU ran properly) and then flashed the stock deodexed rom that Scott posted.
That way she can have root, and I can remove some of the bloat apps she doesn't want via titanium and call it a day.
However, her phone is having some serious issues with 3g constantly toggling on and off while on wifi. (We don't have 4g in our area). I thought it was an issue with the kernel not flashing properly, so I wiped, and flashed it seperately. Still no change.
I reran the RUU 2x, and reflashed the stock leaked deodexed rom from Scott.
Still not changing the results. Her phone is running at least 10 degrees hotter from the constant radio toggling. Phone is reporting the same kernel and radios that I am.
Further investigation reveals that my phone is running on EVDO Rev.a, and her's is running on eHRPD. Running speedtests on the phones shows her getting 2-3x the data speeds of my phone while sitting in the exact same spot in the house.
So... any idea what's going on here? Technically eHRPD is better for data speeds as I understand it. However, if her phone is running at 104F and it's killing her battery it's not better.
For reference, my phone is also S-off, with the newest radios and kernels. I am running Rez Rom 2.1 which is a Sense 4.0 rom vs her stock deodex. As far as I can tell, mine being Sense 4.0 shouldn't be influencing the data connection like that.
Any thoughts would be really appreciated.
This is interesting,
where are you seeing which network you are connected to?
System settings> About Phone> Network.
It's listed there under Mobile network type.
Update:
I flashed her phone to the same Rez Rom s4 2.1 my phone is on, and it seems to have stopped the toggling issue.
She's still on eHRDP vs. my EVDO rev. a and the speed difference is huge.
Any ideas how to switch over to eHRDP?
If you have the 3G icon on both phones, then both phones are connected via EVDO Rev. A.
eHRPD is essentially an authentication protocol that allows switching to LTE when it is available.
Even when toggling LTE off in the network settings, the phone still connects via eHRPD. On the Droid Charge with a ROM with TSM parts, one can manually change the network selection. If you want voice, you need either 1X only mode or eHRPD 1X mode. If you only care about data, then there is an EVDO only mode. There is also the ability to force EVDO Rev 0 and still have 1X, but Rev 0 is even slower than Rev. A.
I don't think there is an easy way to change these settings on the Rezound (I'd like to know if there is.)
Generally, eHRPD is known for having data drops because of some network authentication issue. I have tried EVDO Rev A only mode and had less issues, but I have not tested this in a 4G area. Verizon may have fixed the eHRPD issues or they may not have.
Concerning your problem, I don't really have a guess what the problem could be. I can confirm that I have the CDMA selection in the network settings and that Network Speed confirms my network as eHRPD.
Procede with caution, since I am a Rezound noob: I would suggest running the RUU again along with the radios to see if it was a wonky radio flash. I can tell you that for some darn reason, I seemingly had to flash the radios on the Droid Charge several times in order fix some radio problems I had...
rgallius said:
System settings> About Phone> Network.
It's listed there under Mobile network type.
Update:
I flashed her phone to the same Rez Rom s4 2.1 my phone is on, and it seems to have stopped the toggling issue.
She's still on eHRDP vs. my EVDO rev. a and the speed difference is huge.
Any ideas how to switch over to eHRDP?
Click to expand...
Click to collapse
Beat me to your post. Are you in a 4G area? What speeds are you getting? I've never seen a phone get stuck on EVDO Rev A only mode with 1X still working. Try toggling 4G on and off and rebooting.
We don't live in a 4g area.
Update again:
My phone has switched over to eHRPD and things seemed to have calmed down. I did reboot it previously, and togggle airplane mode a few times and it didnt care about changing over from evdo.
I guess the weird toggling issue on her phone brought to light another issue that might be unrelated?
Thanks for the insight xdadevnube

tmobile lte issues or phone issues

For the past week I've been having problems with my phone seeming locked in "wcdma preferred" mode despite it being actually set to lte/cdma in Phone Info menu. I'm in San Francisco and my daily commute path is completely blanketed with lte, and I have never had any problems connecting to lte until this past week. Usually as soon as I arrive in SF on the train, my phone immediately connects to and stays connected to lte. But at around the time tmobile rolled out their new plans (March 25ish?), my phone has been connecting to hspa 4g and remains on hspa until I force a lte connection by going into phone info menu (*#*#7696#*#*) and choosing lte only. This is particularly irksome because the 4g signal is only 2-3 bars while the lte signal is a full 5 bars. For whatever reason, my phone is clinging onto the hspa connection and passes my signal from tower to tower without actually passing it up to a lte tower. Once I force a lte connection, my phone will remain on lte and will pass back and forth between lte towers as it did before.
Anyone else notice this happenning recently?
gtcardwhere said:
For the past week I've been having problems with my phone seeming locked in "wcdma preferred" mode despite it being actually set to lte/cdma in Phone Info menu. I'm in San Francisco and my daily commute path is completely blanketed with lte, and I have never had any problems connecting to lte until this past week. Usually as soon as I arrive in SF on the train, my phone immediately connects to and stays connected to lte. But at around the time tmobile rolled out their new plans (March 25ish?), my phone has been connecting to hspa 4g and remains on hspa until I force a lte connection by going into phone info menu (*#*#7696#*#*) and choosing lte only. This is particularly irksome because the 4g signal is only 2-3 bars while the lte signal is a full 5 bars. For whatever reason, my phone is clinging onto the hspa connection and passes my signal from tower to tower without actually passing it up to a lte tower. Once I force a lte connection, my phone will remain on lte and will pass back and forth between lte towers as it did before.
Anyone else notice this happenning recently?
Click to expand...
Click to collapse
Try setting it to gsm/wcdma/lte auto under settings -> mobile data -> network mode.
Sent from my HTC One using Tapatalk
The gsm/cdma/lte auto setting is the default setting the phone shipped with, and changing it back to this didn't solve the problem. I use lte/cdma because I wanted to eliminate edge bands altogether since data is practically unusable when connected to edge, and the phone has an annoying tendency to fall back onto edge prematurely.
During the times affected, the phone seems to be locked onto the "wcdma only" setting, regardless of what was actually being selected.
I called tmo a few times and the issue seems to be resolved now. I'm certain it was an issue on their end, probably some software provisioning problem that came up when the new rates rolled out. For what it's worth I am on the now grandfathered $20 unlimited data plan.
gtcardwhere said:
The gsm/cdma/lte auto setting is the default setting the phone shipped with, and changing it back to this didn't solve the problem. I use lte/cdma because I wanted to eliminate edge bands altogether since data is practically unusable when connected to edge, and the phone has an annoying tendency to fall back onto edge prematurely.
During the times affected, the phone seems to be locked onto the "wcdma only" setting, regardless of what was actually being selected.
I called tmo a few times and the issue seems to be resolved now. I'm certain it was an issue on their end, probably some software provisioning problem that came up when the new rates rolled out. For what it's worth I am on the now grandfathered $20 unlimited data plan.
Click to expand...
Click to collapse
I'm still trying to understand what T-Mobile was thinking when they changed their plans. Way to keep themselves super competitive.

[Q] LTE problem

My wife and I bought Verizon LG G3s on the same day last month. Lately mine has been dropping from LTE to 3G most of the time. Hers is always LTE. This happens when the phones are in the same location.
IS there anything in the settings that might be causing this problem and is there anything I can do to get back consistent LTE?
My phone does the same. Once it switches to 3g from 4g it has a rough time going back. My wife's g2 doesn't have this problem. Since we can't update our radio's I suggest making airplane mode your best friend.
Do you me toggling airplane mode on and off solves the problem for you?
What I don't get is that after going Airplane mode or turning off Call Data, and then turning it back on again my phone will sync at -93dbm LTE for a little bit, maybe 2 minutes or so, but as soon as it goes to sleep and I wake it up it lands at -103dbm and never back at -93dbm.
I think the radio in these phones has problems.
I don't know if this will help or not but when I bought my G3 "global" mode was default instead of LTE/CDMA.
Try changing it and see if that helps.
Settings
Mobile networks
System select
Network mode
-change global to lte/cdma
Mine is on global. The other choice, LTE, GSM,UMTS is greyed out. However, my phone is on 4gLTE at the moment.
Switched mine from Global to LTE/CDMA and the signal strength jumped to -93dbm but a minute later it was back to -102dbm.
When this issue occurs do you see a SIM icon with a question mark in it? Ive been having an issue where it drops from 4g to LTE and that icon appears, toggling airplane mode or restarting the phone fixes it. Im going to try getting a new SIM next time it occurs, but im definitely worried about getting a replacement phone that is on the "C" software version (no root right now)
juntistik said:
When this issue occurs do you see a SIM icon with a question mark in it? Ive been having an issue where it drops from 4g to LTE and that icon appears, toggling airplane mode or restarting the phone fixes it. Im going to try getting a new SIM next time it occurs, but im definitely worried about getting a replacement phone that is on the "C" software version (no root right now)
Click to expand...
Click to collapse
No I have not seen a SIM card icon. It's purely a signal issue. I rarely if ever drop out of 4G where I live but I wonder why the signal starts out at something like -93 until the phone goes to sleep and then ends up at a solid -103dbm.
Seems weird.
Power management on the radio might be too aggressive as the phone warms up ?
Sent from my VS985 4G using Tapatalk

Categories

Resources