Related
I thinking about buying D4 as my prime phone. I already find out that It supports GSM and how to unlock this feature. But is it worth to buy this phone to work on GSM? I noticed that there are many issues with it:
- not working callout on 3G on Android 2.3
- Verizon lockscreen that wants to activate phone
- problems with APNs
etc.
zwierzak said:
I thinking about buying D4 as my prime phone. I already find out that It supports GSM and how to unlock this feature. But is it worth to buy this phone to work on GSM? I noticed that there are many issues with it:
- not working callout on 3G on Android 2.3
- Verizon lockscreen that wants to activate phone
- problems with APNs
etc.
Click to expand...
Click to collapse
Yes! It's definately worth it!
The 3g callout problem is a temporarily thing, I'm sure of it. We're still playing with settings and drivers to fix that. In the mean time I use my phone on 2g for voice and 3g for iinternet. With one press of a button I can switch between 2g and 3g (There's an app for that )
The verizon lock screen pops up only once. Once you skip it, it doesn't return until you reset your phone to factory defaults.
Problems with apn's? Depends on your provider. I didn't have any problems at all.My apn settings were transferred automatically to my D4 when my provider detected that I was using a new phone. Even after installing different roms.
I'm using my D4 a couple of weeks and everything still works like a charm.
vmu said:
Yes! It's definately worth it!
The 3g callout problem is a temporarily thing, I'm sure of it. We're still playing with settings and drivers to fix that. In the mean time I use my phone on 2g for voice and 3g for iinternet. With one press of a button I can switch between 2g and 3g (There's an app for that )
Click to expand...
Click to collapse
Mainly I work on 2G because of battery saving (it last for much longer!). But bug with callout has been patch in leaked ICS and what I heard it don't have Verizon stuff installed. I can't wait that some CFW ICS would use its libraries and kernel.
Unfortunately for now I can't afford on buying it because last 10 days jump over 10% according to my currency so it, when previously it had very good price then now it isn't.
I love it. I'm in Canada on Bell Mobility and everything works perfectly on Gingerbread, including outgoing calls on 3G. I think the voice issue is only affecting those within the USA on other carriers such as AT&T.
Sent from my DROID4 using xda premium
Whats the difference in using 2G or 3G for voice calls?
Isn't it the same?
Also, I wanted to use this phone on AT&T in the US. I just have voice and texting. Will this phone work for me?
Rick#2 said:
I love it. I'm in Canada on Bell Mobility and everything works perfectly on Gingerbread, including outgoing calls on 3G. I think the voice issue is only affecting those within the USA on other carriers such as AT&T.
Sent from my DROID4 using xda premium
Click to expand...
Click to collapse
Hi there,
did you have the chance of direct comparison to the Droid 3's signal quality, 3g speeds and call quality? I may consider importing it, but still not sure.
THANKS
It seems to work just as well as my Droid 3 did. The only issue I have is that the Droid 4 seems to underreport the signal it is receiving in the status indicator, the highest signal I've been able to see is 3/5 bars but it still seems to perform as if it were at 5/5.
I'm sure it is just tampering by Verizon and doesn't hinder the device's operation at all. I haven't tried any of the AOKP ROMs yet but will report back once I get a chance to install one.
Thanks for the reply!
Thats interesting, it's like the Droid 3 cheating on us that the GSM Signal would be very poor. Would you please have a look in the build.prop if there is a value ro.mot.phonemode.vzwglobalphone and set it to 0? Then prove if the signal gets better?
News about Droid 4 GSM unlocking this summer:
http://www.droid-life.com/2012/05/2...er/?utm_source=twitterfeed&utm_medium=twitter
Interestingly enough, in the ICS build just leaked that has global support enabled by default, that value is set to 0 in the build.prop.
I am in the US and a VZW user, so I can't test the GSM radio performance on the D4 because they have disabled it for US carriers via another band lock or other mechanism.
I have been dumping and comparing the NVM of the various builds to try and isolate any critical differences to find the key. It may not, in fact, be in the NVM at all, but elsewhere in the radio image.
Just an FYI.
gtmaster303 said:
Whats the difference in using 2G or 3G for voice calls?
Click to expand...
Click to collapse
There is difference in voice codec (on 3G you should get better quality, but it also depends on the second side). Also at 3G you can use front cam for video conferences.
Rotkaeqpchen said:
Thanks for the reply!
Thats interesting, it's like the Droid 3 cheating on us that the GSM Signal would be very poor. Would you please have a look in the build.prop if there is a value ro.mot.phonemode.vzwglobalphone and set it to 0? Then prove if the signal gets better?
News about Droid 4 GSM unlocking this summer:
http://www.droid-life.com/2012/05/2...er/?utm_source=twitterfeed&utm_medium=twitter
Click to expand...
Click to collapse
Yeah, the first thing I did once I could was look at the build.prop settings but I noticed that ro.mot.phonemode.vzwglobalphone is already set to 0, with a note in the comments above it that "the definition moved to cdma_maserati.mk to support different config for factory", which suggests that maybe their tampering is a little more hard-coded into the Blur interface.
Can somebody be so kind and upload stock buid.prop for Bell AHD?
Wanna see differences between the AT&T and Bell setup - looking for way to enable network type switch in phone info
Thanks
here you go!
please extract it to get the build.prop for a bell AHD
Well, I tried replacing build.prop in hope that will enable band switch but it did not
I would really like to have option enabled in settings or trough phone info.
In phone info i can switch between LTE/GSM/WCDMA and LTE/CDMA/EvDO/GSM/WCDMA.
Any other choice reverts back to LTE/GSM/WCDMA. I have done EB40 battery mod and I am not worried about battery life as I can pull out 2.5 days on medium usage but 70% of my day I do not need LTE so I was hoping to extend battery life even more by switching to EDGE
https://play.google.com/store/apps/details?id=de.mangelow.network
Try that app and see if it works for u... o used it on my atrix 2
Sent from my MB886 using xda app-developers app
I dont know what ATT did...
I followed instructions from here: http://forum.xda-developers.com/showthread.php?t=1386383 and I got network switch enabled in settings but when I select GSM only setting does not stick...Reverts back to LTE.
I tried adding ATT 3g APN (wap.cingular) but it wont connect to the data network at all???
Really stuck now.
Generaly I always used 2g data connection when I am at work as I still can get my emails and mms and do some basic browsing and internet radio streaming. Then if I stream videos or download apps or upload large amount of pics I would switch to 3g (LTE in this case)
I wonder does it have anything to do with account provisoning for LTE???
I really would like to have that option enabled and working. I know ATT is in the process of phasing out 2G data on account of LTE but as long as it is available I would like to use it...
After completing the steps in that post and deleting the backups change the operator to maritime. Successfully dropped down to 2G /EDGE. Thanks for this thread. Was hoping someone would post a bit of information on it. Here's some screenshots.
Sent from my Motorola Atrix HD MAXX
Great - I did it too, bad thing it does not stick after reboot - reverts to auto select network but its better than before
I wonder what the heck is Maritime in network selection...
Anyhow will look more into keeping manual network selection after reboot.
h078 said:
Great - I did it too, bad thing it does not stick after reboot - reverts to auto select network but its better than before
I wonder what the heck is Maritime in network selection...
Anyhow will look more into keeping manual network selection after reboot.
Click to expand...
Click to collapse
Would have never have guessed to search for networks and select Maritime. Thanks for the tips guys. I can now force 2g at work.
seh6183 said:
Would have never have guessed to search for networks and select Maritime. Thanks for the tips guys. I can now force 2g at work.
Click to expand...
Click to collapse
h078 said:
Great - I did it too, bad thing it does not stick after reboot - reverts to auto select network but its better than before
I wonder what the heck is Maritime in network selection...
Anyhow will look more into keeping manual network selection after reboot.
Click to expand...
Click to collapse
Maritime is another AT&T network. It was actually the default on my Atrix 4G. Sadly, the Atrix HD doesn't display the code for each maritime network. Shouldn't be to hard to switch the default to it if we knew which code it was. Setting the default to Maritime wouldn't help considering there's 3.
Sent from my Motorola Atrix HD MAXX
Very interesting. If set to 3G only on Maritime it displays the 4G without LTE. Through Phone Info, it shows that I'm connected through HSPA as well. Selecting Automatic sticks with HSPA unless I get better LTE service. Seems like 3G is a good balance between speed and battery life.
Sent from my Motorola Atrix HD MAXX
Neroga said:
Very interesting. If set to 3G only on Maritime it displays the 4G without LTE. Through Phone Info, it shows that I'm connected through HSPA as well. Selecting Automatic sticks with HSPA unless I get better LTE service. Seems like 3G is a good balance between speed and battery life.
Sent from my Motorola Atrix HD MAXX
Click to expand...
Click to collapse
Is there any proof that disabling LTE saves battery life? In older phones, disabling 3G would save battery life because there were separate chip-sets for 2G and 3G services. That isn't the case now, a single chipset handles all signaling. Thus, there are no chips that are powered down when 4G is disabled. I would expect battery savings to be minimal.
Additionally, because of the increase efficiency of the LTE network (combined with less network loading), your phone will have an open data connection for a much shorter time, when transmitting data.
I've got my AHD on the AT&T network using a StraightTalk AT&T sim. $45.00 unlimited everything. With the APN that straight talk uses, it never searches for LTE. Just on 4g all day long, with no LTE searching at all.
Sent from my A200 using xda premium
Guys you need this app
https://play.google.com/store/apps/...251bGwsMSwxLDEsIm15Yy5waG9uZS5QaG9uZUluZm8iXQ..
No need to edit build.prop or root.
mandrsn1 said:
Is there any proof that disabling LTE saves battery life? In older phones, disabling 3G would save battery life because there were separate chip-sets for 2G and 3G services. That isn't the case now, a single chipset handles all signaling. Thus, there are no chips that are powered down when 4G is disabled. I would expect battery savings to be minimal.
Additionally, because of the increase efficiency of the LTE network (combined with less network loading), your phone will have an open data connection for a much shorter time, when transmitting data.
Click to expand...
Click to collapse
Well, I'm going on 4 hours of screen on time, 13 hours of listening to music, etc and still holding 62%. That's from jumping between 2G and 3G on an as needed basis.
--edit--
Seems the jellybean leak comes with this already done? Able to switch to just about everything. Getting HSPAP instead of HASPS a well.
Sent from my Motorola Atrix HD MAXX
Here in Wichita, we finally got LTE, so when I got my HTC One, I was thrilled. Sure enough, on any given day, I get anywhere from 5MB to 15MB speed on 4G. On 3G though, even with full bars, I average between .05MB to sometimes all the way up to .5MB speed. Those speeds aren't new, and have nothing to do with my One. Had the same results on my old Evo3D, and E4GT. My question really is, is there some way that I can force the phone to prefer 4G instead of 3G? If my 3G signal is stronger, it uses that, even though the speeds are absolutely terrible.
I have gone in and changed the priority, but through the normal options, the only real choices I have are either Auto, or CDMA/LTE. I have used both options, and see no difference in behavior. Using the dialer menu, I can change it to LTE Only, but of course that makes it so I can't get phone calls.
I really wish there was a toggle to specify which network I want to run on. As it is, if it won't switch to 4G, my workaround is to turn the mobile data off through the toggle, wait a few seconds and turn it back on, then cross my fingers that it will choose to connect to the 4G network.
adarict said:
Here in Wichita, we finally got LTE, so when I got my HTC One, I was thrilled. Sure enough, on any given day, I get anywhere from 5MB to 15MB speed on 4G. On 3G though, even with full bars, I average between .05MB to sometimes all the way up to .5MB speed. Those speeds aren't new, and have nothing to do with my One. Had the same results on my old Evo3D, and E4GT. My question really is, is there some way that I can force the phone to prefer 4G instead of 3G? If my 3G signal is stronger, it uses that, even though the speeds are absolutely terrible.
I have gone in and changed the priority, but through the normal options, the only real choices I have are either Auto, or CDMA/LTE. I have used both options, and see no difference in behavior. Using the dialer menu, I can change it to LTE Only, but of course that makes it so I can't get phone calls.
I really wish there was a toggle to specify which network I want to run on. As it is, if it won't switch to 4G, my workaround is to turn the mobile data off through the toggle, wait a few seconds and turn it back on, then cross my fingers that it will choose to connect to the 4G network.
Click to expand...
Click to collapse
*#*#4636#*#* and go to Phone Information. There you can set the radio mode. You can set it to LTE,CDMA. That will force LTE and give you 1X for voice calls, but if the LTE signal isn't strong enough it drops to 1X and not EVDO (3G).
I will give it a try now that I am on 4.3. I did that on 4.1 not long after release, and it did force 4g, but it prevented me from getting voice calls. I called my number from another phone, while I was just sitting at my home screen with no apps open, and the call never came through. Tried it multiple times from two areas of town to make sure. Anyway, it is worth trying again. Thanks.
Sent from my HTCONE using Tapatalk 4
like my phone can just sit on 3G, in the same place,while not moving
but if i reboot my phone, it'll pop on to LTE (if its available in that area)
but i reboot it in known LTE areas (when showing 3G)
anyway to force LTE, without rebooting the phone?
or is there some time schedule where it checks to see if LTE is available that I can change?
Yes which model u have? Its in the secret menu
Sent from my LG-D959 using Tapatalk
Sprint version
SayWhat10 said:
Sprint version
Click to expand...
Click to collapse
I don't have the Sprint version so I don't know if this works but you can try https://www.youtube.com/watch?v=bSrtUw8D9_w as this method worked for the very similar LG G2 for Sprint.
I feel for you buddy because this phone is blazing fast on LTE
Sent from my LG-D959 using XDA Premium HD app
He didn't even have to say he was on the Sprint version.. I just knew. Hehe
Visa Declined said:
He didn't even have to say he was on the Sprint version.. I just knew. Hehe
Click to expand...
Click to collapse
Hahaha you're absolutely right. I knew just by reading the thread. Sprint is the worst! My HTC One on Sprint was amazing but I couldn't ever hold on to an LTE connection for more then 30 seconds. Unlimited data is useless if your only on their horribly slow 3g
Sprint does suck, if i didnt have 4 other people on my account that would have to get new phones/account etc, I would have been switched.
but that video i think was to turn on LTE, my LTE is on, but for some reason wouldnt search/connect to LTE when it was available all the time
however i went into my mobile connection settings, and changed it from "LTE/CDMA" to Global
now it seems to switch to LTE when its in an LTE area. LTE icon comes up without me having to reboot, i'll keep a watch on it for a few days to see if indeed that was the solution
by the way, anybody now what the "global" option is? compared to LTE/CDMA
SayWhat10 said:
Sprint does suck, if i didnt have 4 other people on my account that would have to get new phones/account etc, I would have been switched.
but that video i think was to turn on LTE, my LTE is on, but for some reason wouldnt search/connect to LTE when it was available all the time
however i went into my mobile connection settings, and changed it from "LTE/CDMA" to Global
now it seems to switch to LTE when its in an LTE area. LTE icon comes up without me having to reboot, i'll keep a watch on it for a few days to see if indeed that was the solution
by the way, anybody now what the "global" option is? compared to LTE/CDMA
Click to expand...
Click to collapse
I'm pretty sure the global setting is to allow it to connect to GSM carriers in the event that the device is unlocked and the APN is changed accordingly.
I have the same problem in brazil, looks like a problem with the Phone. I had a Samsung S4 that worked with full signal in 4G in my home, now that I moved to LG G Flex it also works full signal 4G in home, but when I move to some place where is Edge then go Back to home, it never moves back to LTE automatically. I need to restart or change the NetworkMode manually to make it back working in 4G.
I think the phone has a problem to automatic search and change the Network mode.
anyone know how to enable only lte yet? i've tried all different kinds of secret menu codes and cant figure it out.
Answer
How to access the hidden service menu on LG G Flex:
For AT&T: Go to dialer and enter 3845#*950#
For T-Mobile: Go to dialer and enter 3845#*959#
For Sprint: Go to dialer and enter 3845#*995#
Once you're in the hidden menu, go to LTE-Only > Modem Settings > RAT Selection > LTE only
Enjoy!
-Curt
I'm still using stock 5.1.1 ROM, because I'm not clear whether I lose some functionality by rooting / unlocking the bootloader.
I like to use my phone in 2G data mode, that feels safer on my body than 3G and above - but this device considers 2G only mode to be calls and text only (i.e. data off!).... this seems crazy to me since data off is achieved more easily with the option just for that. Is there any way to have proper 2G data only mode?
So when I go into the data options I get the usual set of things, and 2G says "2G (voice and calls only)", then when I switch to this, data is actually turned off. When try to turn data on, I get a message saying I've got to switch data mode to be able to do this - data stays off until I choose "3G (preferred) / 2G". It seems like the software on my device is designed to turn data off when you choose 2G - very odd.
No updates are available when I check. I'd love to go to marshmallow, but I guess I've missed that until Sony release their tested version of it - that update might fix this issue.
Missing my rooted Samsung Galaxy S3 already! - recently bought second hand device.
Many thanks, Geoff
For me this used to work on kitkat (i can't remember on lollipop because i use concept 6.0.1):
in quick settings i'd turn off LTE and then in settings - mobile networks i'd set to 2G only. And afterwards by switching LTE on and off form quick settings phone would toggle from 2G and LTE. But since i didn't pay for 4G to my provider, my phone would toggle from 2G to 3G - just what i wanted.
I used to use 2G on my old Xperia P since it improved my battery life dramatically. I continued to use it on my Z3c while on kitkat, but it didn't affect my battery life so i stopped - hence I don't know if you can do this trick on lollipop.
Goog luck and I hope this helps.
I don't really understand you... I'm using 5.1.1 and if I switch to GSM only, ALL network stuff is using 2G - calls, texts, mobile data (little E letter right next to the signal icon). So... what's really a problem? Maybe I don't understand the context (I am not a fluent english speaker but I understand it pretty well) but please describe your problem more precisely
P.S.:
Rooting doesn't harm your device, your camera resolution won't change at all so don't worry
[Unlocking bootloader DOES harm your device (losing some DRM-related stuff) but there are plenty of other benefits from this AND you can revert the DRM changes.]
Wait, what ?
Are you seriously thinking that 3G(HSDPA) or 4G(LTE) is somehow more harmful to your body ?
That's ridiculous. The power levels used in 2G and 3G and 4G are all roughly the same and always below 250mW.
yes from discussion and reading research I feel there's a case for being cautious, that we've not had enough time to adjust to this technology - see for example http://forum.xda-developers.com/showthread.php?t=473209
Better start wearing tinfoil hats m8
(That's so esoteric I won't even bother responding. The power levels used are not even remotely high enough to cause cellular changes)
thanks for your message - I think you understand well, but your phone is giving different behaviour. I've added more description, in case that helps anyone
like I said, we each choose - and choose how much we look into it. Probably similar comments from people in the 60s to anyone questioning Aspestos. It's easy for either of us to generalise that it's OK or not, with examples from the past, but there's information out there that's looked into this and is thorough, including significant instances of phone engineers with brain tumors. We don't agree, let’s at least be respectful.
1) When 2G is working on 1800 MHz band (this happens especially if you live in a big city), the energy is more or less the same used by 3G technology.
Anyway this is not the point.
2) Are you sure your network operator has 2G data connection available? Is your firmware branded?
You don't lose DRM keys while you flash an unbranded firmware or you root the device with giefroot method.
Have a look at the general section
thanks for your reply - yes definitely there's a 2G connection, as I live in the countryside I end up on this quite a bit of the time, when in "3G/2G" mode.
I'm on a UK network called Tesco that uses the O2 network. Phone originally came from O2 (telefonica), but is now SIM unlocked. Behaviour was the same before and after unlock - no surprise as software the same. Build number is 23.4.A.1.264, kernel 3.4.0-perf-gbe52486 (September 17 2015)
Threads like the one you linked and statements like above just reek of not understanding how GSM and 2G/3G/4G actually works.
Stuff like
As 2G and 3G have different requirements, they also have different power consumption. It doesn't require much more than common logic to understand that since 3G needs to transfer more data during a short period of time, it would use more resources than 2G, which needs less during the same period.
Click to expand...
Click to collapse
Is just wrong. It's all about modulation. MATH basically.
https://en.wikipedia.org/wiki/Phase-shift_keying
Just check the last page of that thread and have someone who actually knows what he's talking about explain it:
http://forum.xda-developers.com/showpost.php?p=12163015&postcount=61
But whatever floats your boat m8.