Is it possible to change the settings in the modem of the S4 Mini from Band IV LTE (AWS) to Band IV HSPA+ (AWS)? I would like to enable the device for T-mobile/Wind Mobile use and don't care about dropping the LTE functionality.
I've seen this done for several other Samsung phones, including the regular Galaxy S4 for Verizon (900V).
Thanks
You mean you want to disable LTE functionality and just use 3G? Go ahead to settings, connections, mobile network:
traceless said:
You mean you want to disable LTE functionality and just use 3G? Go ahead to settings, connections, mobile network.
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No, the was frequencies for hspa+ are not supported by this device, but they may be supported by the modem by switching them from Band IV LTE to Band IV GSM.
Related
So I heard LTE is backwards compatible with GSM and HSDPA + My carrier supports AWS band 4. Will this work? Has anyone tried it?
So you're basically asking if the AT&T Optimus G will work with T-mobile's 4G Network, right? The answer is NO. Or at least not by default. That's because, even though the phone has the correct band (1700/2100), you would still need the correct radio to be able to use that specific frequency (again 1700/2100) with your carrier. Much like the AT&T Galaxy Note I717. It supports the 1700 frequency, but in order to have that working band with Tmobile, we had to flash a Tmobile specific baseband/radio from the Galaxy s2, Galaxy S Blaze 4G and/or Tmobile Galaxy Note to be able to use the phone on the 1700 freq. So in this case, Unfortunately, Tmobile won't be releasing the LG Optimus G, so there won't be any radios available to use. But, the LG NExus 4 actually has the exact hardware specs or SOC as the LG Optimus G, so a radio/baseband port might be possible.
I hope this post made sense to you.
So what is the difference than taking a locked phone, unlocking it to another network that shares the same GSM frequency?
Nuxtux said:
So what is the difference than taking a locked phone, unlocking it to another network that shares the same GSM frequency?
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Actually the two networks don't share the same GSM freq. Yes the AT&T LG Optimus G does have the AWS 1700 band in the hardware, but it is not enabled by default in the software. In order to enable the AWS 1700 freq, you'll need to use/flash the correct radio that carries the AWS 1700 freq. Like i said in the earlier post, one might be able to possibly port the a radio/baseband from the LG Nexus 4. Since it supports all pentaband frequencies.
So why would they disable it if the carrier uses 1700/2100 for LTE? I'm still not understanding its limitation
The carrier I want to bring it to uses AWS 1700/2100 3.5G.
Are they selling a phone that doesn't work with LTE on there network? Or can the phone only do 1700/2100 in LTE ?
Nuxtux said:
So why would they disable it if the carrier uses 1700/2100 for LTE? I'm still not understanding its limitation
The carrier I want to bring it to uses AWS 1700/2100 3.5G.
Are they selling a phone that doesn't work with LTE on there network? Or can the phone only do 1700/2100 in LTE ?
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It's not that the 1700/2100 bands are disabled. They are very much enabled but the radio is set to use them for LTE.
So you are saying even though LTE is backward compatible the band installed is software limiting the hardware to only allow LTE 1700/2100?
Nuxtux said:
So you are saying even though LTE is backward compatible the band installed is software limiting the hardware to only allow LTE 1700/2100?
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LTE phones are backwards compatible because they support other bands for HSPA and GSM. For example, a carrier using 1700 MHz for LTE may use 850 and 1900 for HSPA but the 1700 will only work with LTE.
Nuxtux said:
So you are saying even though LTE is backward compatible the band installed is software limiting the hardware to only allow LTE 1700/2100?
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You somewhat got it. It is the same problem with AT&T's HTC ONE X. The phone as the 1700 band for LTE, but when used with Tmo it only picks up 2G using the 1900 GSM. But with Tmo merging with Metro PCS, and partnering with Ericsson and Nokia Siemens Network, the H+ 1900 Spectrum will be available everywhere very soon. I read an article on tmonews.com that it should be done by the end of this year.
maybe the Canadian Telus version would work with T-Mo's AWS
it'll work you'll have to use the modem firmware from the N4 in order to use hspa+
vdub804 said:
it'll work you'll have to use the modem firmware from the N4 in order to use hspa+
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i'll buy the att optimus g once this is confirmed working :good:
Any one got this one working? Got my Att OG, but edge is very slow. the T-Mo refarmed areas are OK though
Is there a way to check that the LTE radio on the ATT SGS3 will work with the 2100mhz band LTE in Thailand? I tried an updated SIM at the True Mobile shop this morning and my phone would not register on the LTE network. When selecting "Bearer" in APN settings, picking LTE would disconnect my mobile date - setting it back to 'Unspecified' allowed me back onto HSPA+ but not LTE.
- Is it possible for a carrier to restrict the types of phones that can access their LTE network, or is it as simple as having the correct radio?
- Are there different channels on the 2100mhz LTE spectrum, and is it possible ATT uses a different channel than True is using?
- How can I diagnose my radio connection to determine what could be preventing my access to LTE on the True network?
- What is the difference between LTE 700mhz Class 17 / 2100 and 2100mhz LTE?
ROM - SlimBean 7.2 weekly, stock kernel
MODEM - LK3
True Move Press Release - http://truemoveh.truecorp.co.th/news_events/news/entry/1392?ln=en
True LTE - 2100 mhz band 1
i747 LTE - 700 mhz band 17, 1700/2100 (AWS) MHz
- Is there a way to see if I am connected to their 850mhz 3G or 2100mhz 3G?
Please let me know what further information I can provide to facilitate a solution. Cheers and thank you in advance.
[EDIT] Upon closer inspection, these are loafers... er, rather I educated myself about LTE bands and AWS... a tad confusing, but going off of the Samsung website spects, the SGH-i747 is dual band LTE 4/17... which is incompatible with True's LTE band 1.
This may be the push that puts a SIV in my hands...
My friend have P605. He's use T-mobile network and only see H+ when connect to network.
How to enable lte or 1700 network t-mobile?.
Can flash FW of Euro or T-mobile to enable let connect?.
Thanks!.
chanhny said:
My friend have P605. He's use T-mobile network and only see H+ when connect to network.
How to enable lte or 1700 network t-mobile?.
Can flash FW of Euro or T-mobile to enable let connect?.
Thanks!.
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You cant. HSPA is as fast as you are going to get with the SM-P605 on T-Mobile. This model doesnt support the 1700mhz band which T-mobile LTE runs on.
I have two M919 phones: The T-Mobile M919 and the MetroPCS M919N. They are the same phone with different branding I believe and have used both with the same flashing software, dialer codes, replacement hardware parts, etc.
I unlocked both phones as detailed in my thread in this forum.
What I need is: In the Band Selection Menu, What is default for LTE Band Preference?
I dialed *#2263# to access the menu. I have an asterisk next to Automatic in one phone and nothing in the other.
Under LTE Band Preference, I see 9) LTE ALL selected. What is the correct band to chose for T-Mobile LTE on either a T-Mobile or Metro branded Galaxy S4 M919?
Thanks much
Band 4
serio22 said:
Band 4
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Thank you very much.
In my area T-Mobile just rolled out Band 12 (700 Mhz), but this band does not exist in my phone's configuration. How about yours?
jmacguire said:
Thank you very much.
In my area T-Mobile just rolled out Band 12 (700 Mhz), but this band does not exist in my phone's configuration. How about yours?
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It does not
Im using this phone with cricket but for some reason it won't connect to 3g or hspa do anyone know why?
Perhaps because regular 2G, 3G or the faster 3G HSPA(+) on AT&T's network runs on GSM technology which is completely incompatible with the CDMA network Sprint uses for those technologies and the firmware on the Sprint variant is artificially limited to only be able to connect to CDMA and not GSM even though the phone's modem has the capability? Take what I'm saying with a grain of salt however.
DeyEatDaPooPoo said:
Perhaps because regular 2G, 3G or the faster 3G HSPA(+) on AT&T's network runs on GSM technology which is completely incompatible with the CDMA network Sprint uses for those technologies and the firmware on the Sprint variant is artificially limited to only be able to connect to CDMA and not GSM even though the phone's modem has the capability? Take what I'm saying with a grain of salt however.
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But I get Lte working fine.
lude86 said:
But I get Lte working fine.
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Yes, because LTE is its own technology. LTE, GSM and CDMA are each their own technologies, each completely different from the other in a multitude of ways. That's what makes one not compatible with the other, but with the advent of LTE it also made it much more cost-effective for device manufacturers to include 4G support for all major networks (provided the device supports the necessary bands and the carrier allows it, of course)... so yes, LTE should work flawlessly.
The specs on the LG Official Website for Sprint LG G8 shows it has all the 2G, 3G, and 4G bands on Cricket except it's missing B30 for 4G:
LTE Bands 1/2/3/4/5/7/8/12/13/17/20/25/26/28/40/41/46/66/71;
CDMA Band Class 0/1/10;
GSM 850/900/1800/1900 MHz;
UMTS Bands 1/2/4/5/8
Did you try to change the network mode to GSM/UMTS and reboot?
lentm said:
The specs on the LG Official Website for Sprint LG G8 shows it has all the 2G, 3G, and 4G bands on Cricket except it's missing B30 for 4G:
LTE Bands 1/2/3/4/5/7/8/12/13/17/20/25/26/28/40/41/46/66/71;
CDMA Band Class 0/1/10;
GSM 850/900/1800/1900 MHz;
UMTS Bands 1/2/4/5/8
Did you try to change the network mode to GSM/UMTS and reboot?
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Yeah thats what I thought too but even after changing the network mode and restarting still not getting 3g data
Yes you can dial *#*#4636#*#* , go to phone information or network, look for preffered network, then select wcdma preferred, it will switch to hspa+, do note there will be no indication, only a 3g symbol on the bars. if you download network info app, it will let you see that you are indeed on hspa
Ok after many attempts to bring up my 3g inwas able to do so by going into ##data# and resetting the apn then boom 3g icon popped up. Weird because the apn was correct in the first place prior. But thanks now it works
what is the recommended network i should choose for tmobile network. i have sprint version
tdsii said:
what is the recommended network i should choose for tmobile network. i have sprint version
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LTE. If you don't get good speeds (about 10Mbps) then change it to GSM. This is something I actually have to remember to do if I'm outside the house because I actually get more consistent performance inside my house using 3G HSPA+/GSM. On HSPA+ it goes to is 6Mbps which is plenty usable but normally it runs at 10Mbps which is more than enough for Full HD streaming whereas if I use 4G LTE under the same condition I'll either get 30Mbps or 1Mbps depending on the time of day and/or if the network is congested. 1Mbps is definitely not usable for anything but streaming at horrible quality or browsing basic webpages.