I'm trying to use the Nokia field test to determine some details about my carrier's current LTE configuration here. I've identified the band using the EARFCN, but there doesn't seem to be any indication of the channel size (5 MHz, 10 MHz, etc.) Is this possible in the Lumia 920's field test app?
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How do I check which frequency band I'm connected to? I'm pretty sure *#1111# used to show this info in 2.3.3 but since upgrading the 2.3.5 the same code doesn't any more.
As an example my telco uses both 850/2100 Mhz 3G...so my phone will use one of the two depending on availability in my area. I want to find out which band I use at any given time.
Tried *#*#1111#*#* ?
With the app Hidden Features.
I'm on 2100 at the moment.
Hello everyone,
"The LTE standard can be used with many different frequency bands. In North America, 700 and 1700 MHz are planned to be used; 800, 1800, 2600 MHz in Europe; 1800 and 2600 MHz in Asia; and 1800 MHz in Australia. As a result, phones from one country may not work in other countries. Users will need a multi-band capable phone for roaming internationally." (en.wikipedia.org)
So far, I have not heard of any LTE cell phone able to adapt to this multi-frequency international situation.
Even within the USA, it does not seem possible for an unlocked LTE cell phone which has been bought through one carrier to be used with another one.
Well, it should be possible !
After all, LTE is an international standard supporting all frequency bands, flexible bandwidth and both FDD and TDD duplexes ...
So it might not be that difficult to make these phones be able to use different LTE frequencies.
All radio systems can easily scan the whole spectrum in order to settle on the next available or desired channel. Another example, on Android Gingerbread phones :
"Settings-->Wireless & Networks-->Mobile Networks-->Network Operators--> Search Network" shows you all the mobile carriers available in your area, offering you the possibility to manually register on a specific network.
All this means that it should be technically possible to buy an unlocked LTE cell phone in the US for example, buy a sim card in another country where the LTE frequency is different, and everything should work fine, maybe with some software tweak.
Has anybody tried this already ?
I just received a new Android phone from China that was advertised as having support for GSM 850/900/1800/1900 & WCDMA 850/2100 with GPRS/EDGE/HSDPA data capabilities. However I'm only connecting to AT&T on 2G GPRS data at around max 50 kbps. Occasionally I will see an EDGE "E" for a few seconds only to have it disappear. I have tried the phone in several locations where I know there is both good EDGE coverage as well as 850 MHz 3G/HSPA towers but the phone isn't seeing anything. I've tried every setting change as well as a new SIM to no avail.
Does anyone know if there is an app or potentially a dial command, terminal command line utility or external program that can query an android phone to see which GSM/WCDMA bands are supported in the chipset/baseband?
Thanks, Kav
Kavik said:
I just received a new Android phone from China that was advertised as having support for GSM 850/900/1800/1900 & WCDMA 850/2100 with GPRS/EDGE/HSDPA data capabilities. However I'm only connecting to AT&T on 2G GPRS data at around max 50 kbps. Occasionally I will see an EDGE "E" for a few seconds only to have it disappear. I have tried the phone in several locations where I know there is both good EDGE coverage as well as 850 MHz 3G/HSPA towers but the phone isn't seeing anything. I've tried every setting change as well as a new SIM to no avail.
Does anyone know if there is an app or potentially a dial command, terminal command line utility or external program that can query an android phone to see which GSM/WCDMA bands are supported in the chipset/baseband?
Thanks, Kav
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either misadvertised or you misunderstood the ad. If you do some research on those china knock off phones you'd know that they basically don't support any 3G or higher spectrum except the weird ass **** they use in china. I was tempted to buy one of those phones until I discovered that. If you don't like it I suggest returning it asap.
I have looked for days now across multiple forums to get some insight on this issue:
I want to use my Thunderbolt in Thailand. Haven't found any threads that speak of success, only conjecture that it won't work.
Homework I've done (unless i understand it incorrectly):
- Verizon 3G operates on the 850 / 1900 mhz cdma band. Radio Frequency Summary
" The following is a list of known frequencies which Verizon employs in the United States:
Frequencies used on the Verizon Network
Frequency Protocol Class
850 MHz 1xRTT/EV-DO/eHRPD 3G
1900 MHz 1xRTT/EV-DO/eHRPD 3G
700 MHz LTE 4G
1700/2100 MHz(AWS) LTE 4G"
- Truemove, a popular mobile company in Thailand has early links to Verizon and their 3G service operates on the 850mhz wcdma band
"What should I do if I want to use TrueMove 3G service but I don’t have a 3G 850 MHz mobile phone?
Basically, it’s not that all mobile phones work on any band. Each 3G compatible mobile phone supports different bands. For example, if you have a 3G 2.1 GHz or 900 MHz or 2G mobile phone, you will not be able to use TrueMove 3G service because TrueMove offers 3G service on 850 MHz band.
If you want to enjoy TrueMove 3G service, it is recommended that you buy a 3G WCDMA 850 MHz mobile phone or visit any True Shops and ask for a 3G compatible mobile phone. True Shops also sell different smartphones that support different mobile platforms e.g. iPhone 3G/3GS, BlackBerry Bold 900/Bold 9700 and Motorola Milestone."
- I spoke with verizon after reading other forums about 'unlocking' thunderbolts and was told that the thunderbolt comes unlocked, so unlocking wouldn't be necessary anyway.
- Lastly, it seems that many people have successfully put a 3G SIM into a 4G SIM slot on there phone and received 3G service.
....So what am I missing? What would prevent me from being able to use my Thunderbolt in Thailand for simple 3G service if the carrier (Truemove) works on cdma based bands? What extra might I have to do to get it to work?
PS: Sorry I can't insert the links directly in the post. Not allowed since this is my first post.
Thanks for any help
Mobileuncle shows that my device is only on WCDMA 2000 with other frequencies grayed out...particularly WCDMA 850 which the one I want to access to get HSPA, right now only getting 2G.
It might be just a APN problem even though I've changed the APN several times with no results, so I'm wondering about changing the Frequency of the WCDMA, or accessing all frequencies?
http://www.starleadintl.com/pro_detail.php?ProId=441
According to these specs, and I believe this is the manufacturer and developer, the wcdma frequency can be changed...for $3 bucks no less. That would indicate a firmware change.
Have you find out how to change the frequency?
I need to change on my Xiaomi Note
Please share.
Thank you