[Q] MT6167 baseband? (MT6589's RF Chip) Asking the Pros - Android Q&A, Help & Troubleshooting

hi , I found on the wild that the mt6167 chip is widely use as the RF complement to the known and largely use MT6589 chip use on china phone.
Tell me, base on the spec sheet of the 6167 chip, is there a single clue, that may let suppose that this chip can be hacked to use the 1700 aws band or forget about it for life.....
thanks to all
Data sheet here

Related

Htc Dual 850mhz Mod?

Hi, does anyone know how to enable 850mhz in this fone. please, very needed i bought thinking that this was quadband as htc elf ( touch )
thanks
I am not sure this is even possible.
Is the chip supporting 850?
PseudoReal said:
I am not sure this is even possible.
Is the chip supporting 850?
Click to expand...
Click to collapse
Yes, the chip is quadband (same chip set as TyTN II).
MTM said:
Yes, the chip is quadband (same chip set as TyTN II).
Click to expand...
Click to collapse
It's too bad, but the HTC TOUCH DUAL does not support 850mhz :-( My home network is 850 only and the HTC is useless in it!
Yes, it doesn't support 850 now, but the big question is it possible to support it with a different ROM. Probably a big project to lift the code from another HTC product that uses the same chip.
bxwatso said:
Yes, it doesn't support 850 now, but the big question is it possible to support it with a different ROM. Probably a big project to lift the code from another HTC product that uses the same chip.
Click to expand...
Click to collapse
tom_condon is working on a new ROM for the touch dual now. maybe you could ask him?
It can very likely be done by enabling a bit in the NV RF Config item.
I am working on that, see here.
That would be awesome. For me, 850 Mhz and GPS are the two things keeping the Dual from being the ultimate phone to date.
Thanks,
Telstra is selling a 850 MHz Touch Dual on their NextG Network, but it is not the same as the reglar Tri-Band device. Seems HTC is actually selling multiple versions iof the device to suit different carriers.
a radio update or something can help? that would be ideal since i am in the same situation 3g is on a different mhz but phone is at 2100 for 3g
Just found out the phone will be release in the us sometime in Q2 they say it will be compatible with AT&T 3g hopefully the rom from this new phone can help us that have already bought it.
...
There is a Touch Dual that supports 850MHZ codename "NEON" and not "NIKI"
There is a complete other Tranceiver chip inside.
NIKI is no Quadband Device!
So do you recommend selling my Niki and getting a Neon then to stay compatible with US networks? I know netrunner was saying there is a possibility the NV items can be changed to take out the 2100 and put in the 850
...
yes u can change the NV-Items but the Chip dosn't support 850MHZ.
OR... we don't know enought about the RFR6300 Chip.
We need internal shots or a list of Chips from a NEON.

3g on a different frequency?

Apologize if this is a stupid question ...
But it it possible to get niki to do 3g on a freq other than 2100 ?
that would require a major hardware change, so its unlikely.
thank you. that helps.
On 2-14-08, HTC started selling the HTC Touch Dual 850 in Australia. The big question is whether it has the same chips inside as the Touch Dual. There has been some talk that the regular Touch Dual has a chip that works on the 850 frequency, so I'd say there is a good chance the two devices are the same with differnt ROMs.
We really need someone to upload the ROM from a Touch Dual 850.
I believe that there were two differing Qualcomm 7200 chipsets produced:
One with support for 850/900/1800/1900 MHz (the US version, in which the 850 & 1900 MHz band is used for UMTS). And one which supports 900/1800/1900/2100 MHz (for Europe) In which the 2100 MHz band is used for HSDPA.
You could be right though, it may be that the only differences are in software.
The device can't support all five frequencies(at least it shouldn't be able to ), but it may be possible to pick and choose by flashing radio roms.
Only time will tell...
I have read the lg ks20 manuel ... if you need more frequency, you need hardware parts! on of this parts are a RF switcher. the radio read out the nv ram too.
I'd say that just about does it. I will be wanting an 850 model soon.
in the moment ... i think ... no 850mhz nike!!!
hoping a radio update can do it for the niki since i just bought one in the us and just learnt about this issue.
do you think the australia rom would fix it or the radio, i do know the australia rom is available for download but isn't the radio more important for this issue?
NetrunnerAT said:
I have read the lg ks20 manuel ... if you need more frequency, you need hardware parts! on of this parts are a RF switcher. the radio read out the nv ram too.
Click to expand...
Click to collapse
Has anyone found out any new info about this? I too have issues with the Niki100 not covering all the bands I need for coverage in my area and have no 3G. With the US Touch Dual coming out soon, or with the Australia release, I was hoping someone had a radio flash that could provie if upgrading the radio fimrware worked.
you havent understand what i have tell!!!
niki havent the right RV Switch!!! You cant change anything to handle G3 network on 850MHz or 1900MHz!!!
the US Touch Dual or AUS Touch Dual isnt a HTC Niki ... it is a HTC NEON!!!
Both can use the same OS and Radio Roms! The Radio Rom is every time the same!
@NetrunnerAT
just to be fare:
there are 2 models of HTC Touch Dual available here in Australia:
HTC Touch Dual UMTS 2100MHz
HTC Touch Dual UMTS 850MHz (Telstra NextG frequencies)
ok again ... Touch Dual 850MHz is a HTC NEON!!!! Both Device have the same Case and a simulare Chipset, but different RV Chips!!!
Don't bug me!

[Q] Is the Samsung Galaxy S II penta band 3G 850 900 1700 1900 2100 frequencies

Hi all
Thanks in advance for any help please provide links if possible. So I've finally stopped waiting for Nokia and then Nokia/Microsoft to get their act together and jumped on the android wagon. It seems android has everything I'm looking for (sync to outlook, office document viewing editing, etc not Garmin yet though).
Anyway I've been doing research on the Samsung galaxy s2 and found some discussion on the 3G modem/antenna being penta band. Is this true? If so can I get links, also how do you enable all the bands? Or can you enable those bands that pertain to the firmware and have to keep the other bands on the phone so if you need them you can flash.
Side question I played with a korean S2 and saw that it has NFC on the apps (out of the box). I'm pretty sure this is true but I'm having some doubts as the FAQ and some other forum member claim that no current S2 has this feature.
Thanks
It's quad band 3G. 850/900/1900/2100. It does not do 1700.
From Samsung.com:
Quad band GSM 850/900/1800/1900
Quad band UMTS 850/900/1900/2100
Click to expand...
Click to collapse
As for NFC, the I9100 does not have it. I'm not sure if any of the other Asian models (different model numbers too) have it or not.
I heard that the modem intel x626 gold is penta band (unconfirmed) that is in the galaxy s2. Also the tmobile version is coming out which has 1700mhz this might lead me to believe that it is penta band in hardware and only needs software.
Only the korean version of the s2 has NFC.
No other version has it as cell phone providers are thinking of releasing it attached to the sim card as soon as the technology has stabilized and is widely available in a number of countries.
here is some information about in this blog.
http://www.engadget.com/2011/06/01/netcom-shows-off-microsd-card-with-integrated-nfc-goodness-vide/
Duplicated
Duplicated
the sd card sounds like a good idea as a aftermarket part but I thought I saw the SGS2 with NFC on ebay as the I9101. what would happen if I had to add extra memory to the phone?
Duplicated
I emailed Brian Klug that did the review of the SGS2 on Anandtech.
http://www.anandtech.com/show/4686/samsung-galaxy-s-2-international-review-the-best-redefined/
It is one of the most in depth that I have seen but here is what he says about the SGS2 being penta band.
"XG-626 is compatible with more bands, however the limiting factor always is whether the device manufacturer has provided the power amps for those other bands, and in this case there aren't more."

[Q] Unlocked UK Lumia 920 (Clove/Expansys) on LTE network

Has anyone tried using one of the white unlocked Lumia 920 from Clove (I guess the ones from Expansys are the same) on an LTE network?
Specifically, do you have the "4G" option in the "highest connection speed" settings?
In my case, although I am using an LTE SIM with an LTE network on a supported band, I only have "2G" and "3G" options in the Highest Connection Speed settings. So normally it is only connecting over HSPA. Through playing around a lot with scanning LTE bands with the Field Test tool (##3282#), I can sometimes get the device to connect to LTE, after which it works perfectly on LTE until reboot. But it's not really a long-term solution.
The default firmware on my device is country variant "CV GB SW Variant ID 276 v03" which (apart from the version number) seems to be the same firmware as that sold by Orange / T-Mobile in the UK (i.e. for 3G networks).
I was thinking about trying to flash the EE firmware, but concerned this could create other issues (such as end up locking the phone to EE, or to certain LTE bands, or something...). Any thoughts appreciated.
You don't mention where you are, but that might help respondents.
As you may know, the LTE bands are different between the NA and Europe. The LTE Bands listed on the international version are 800/900/1800/2100/2600 while the NA(Rogers & AT&T) version has 700/850/1700/1900/2100.
Are you sure you are connecting to the LTE bands? Do you have an LTE SIM installed?
tomdjp said:
Has anyone tried using one of the white unlocked Lumia 920 from Clove (I guess the ones from Expansys are the same) on an LTE network?
Specifically, do you have the "4G" option in the "highest connection speed" settings?
In my case, although I am using an LTE SIM with an LTE network on a supported band, I only have "2G" and "3G" options in the Highest Connection Speed settings. So normally it is only connecting over HSPA. Through playing around a lot with scanning LTE bands with the Field Test tool (##3282#), I can sometimes get the device to connect to LTE, after which it works perfectly on LTE until reboot. But it's not really a long-term solution.
The default firmware on my device is country variant "CV GB SW Variant ID 276 v03" which (apart from the version number) seems to be the same firmware as that sold by Orange / T-Mobile in the UK (i.e. for 3G networks).
I was thinking about trying to flash the EE firmware, but concerned this could create other issues (such as end up locking the phone to EE, or to certain LTE bands, or something...). Any thoughts appreciated.
Click to expand...
Click to collapse
Have a look at this offivial Blog post from Nokia.
http://goo.gl/L2eiy
They basically saying that even-thought the new Lumias are LTE ready they will required a software update to turn LTE ON.
The information on that is very limited as Nokia didn't specify ANY details on how they will push this OTA.
What happens if you have an unlock device and use it in a different country of its origins? How they will push the update under what criteria?
Is the update is driven by the SIM ID? They will update the OS and turn ON LTE depending the SIM region or the device IMEI region?? Nobody knows...
Even worst there is a rumor that the latest Snapdragon S4 is supporting all 9 LTE bands at ONCE and the software just enable the appropriate ones, its programmable from the firmware. If this is true, then Nokia is committing a suicide here, they can simply program WP8 to recognize the SIM ID and turn ON/OFF LTE Bands depending the Network. Going with OTAs across different devices and regions will be a mess.
nMIK-3 said:
Have a look at this offivial Blog post from Nokia.
http://goo.gl/L2eiy
They basically saying that even-thought the new Lumias are LTE ready they will required a software update to turn LTE ON.
The information on that is very limited as Nokia didn't specify ANY details on how they will push this OTA.
What happens if you have an unlock device and use it in a different country of its origins? How they will push the update under what criteria?
Is the update is driven by the SIM ID? They will update the OS and turn ON LTE depending the SIM region or the device IMEI region?? Nobody knows...
Even worst there is a rumor that the latest Snapdragon S4 is supporting all 9 LTE bands at ONCE and the software just enable the appropriate ones, its programmable from the firmware. If this is true, then Nokia is committing a suicide here, they can simply program WP8 to recognize the SIM ID and turn ON/OFF LTE Bands depending the Network. Going with OTAs across different devices and regions will be a mess.
Click to expand...
Click to collapse
There are international versions that HAVE ALL 9 LTE bands enabled and also petaband 3G.
For example in Germany:
http://www.nokia.com/de-de/produkte/smartphones-und-handys/lumia920/technische-daten/ (expand where it says "Basisdaten")
or in Singapore:
http://www.nokia.com/sg-en/products/phone/lumia920/specifications/ (expand where it says "Hardware")
or also in Switzerland:
http://www.nokia.com/ch-de/produkte/smartphones-und-handys/lumia920/technische-daten/ (expand where it says "Basisdaten")
I think there might be a good chance that you can unlock those extra bands on international versions (RM-821) that have them disabled by flashing a different firmware version. However this is just me thinking out loud so please don't blame me if it doesn't work or if it breaks your phone!
However I would strong discourage you from flashing an RM-821 firmware to an RM-820 (North American version) as I know that sb around here almost broke his phone by doing so.
Hi all
Thanks for your replies so far.
Right now I am using the phone in Japan, where there are three carriers with Band 1 (2100 MHz) LTE networks. I only tried one carrier so far, and yes it is an LTE SIM. As mentioned, I can actually connect to LTE and have used it for several hours, it's just necessary to use an unreliable trick (with ##3282#) to get the phone to see the LTE network. This seems related to the fact there is no 4G option in my highest connection settings.
Thanks for the heads-up on the OTA updates, agreed it's not clear how this will work at all...
Regarding the LTE band support, personally (although it's just my intuition) I think the lists of 9 LTE supported bands on those regional Nokia websites are probably in error (it wouldn't be the first time). Normally the most reliable source in Nokia's website is Nokia Developers, which clearly shows five bands for global RM-821 (1, 3, 7, 8, 20) and four bands for AT&T RM-820 (2, 4, 5, 17).
While the Snapdragon baseband may be able to support all 9 bands, the most difficult part of the design is the RF - filters, amplifiers, etc. So I imagine different RF chains are used in the two variants to support these specific bands.
Again, if anyone has the unlocked RM-821 and tried with an LTE SIM, if you could confirm if the 4G setting is available in highest connection settings, it would be much appreciated.
karlmueller said:
There are international versions that HAVE ALL 9 LTE bands enabled and also petaband 3G.
For example in Germany:
http://www.nokia.com/de-de/produkte/smartphones-und-handys/lumia920/technische-daten/ (expand where it says "Basisdaten")
or in Singapore:
http://www.nokia.com/sg-en/products/phone/lumia920/specifications/ (expand where it says "Hardware")
or also in Switzerland:
http://www.nokia.com/ch-de/produkte/smartphones-und-handys/lumia920/technische-daten/ (expand where it says "Basisdaten")
I think there might be a good chance that you can unlock those extra bands on international versions (RM-821) that have them disabled by flashing a different firmware version. However this is just me thinking out loud so please don't blame me if it doesn't work or if it breaks your phone!
However I would strong discourage you from flashing an RM-821 firmware to an RM-820 (North American version) as I know that sb around here almost broke his phone by doing so.
Click to expand...
Click to collapse
I thought the same thing on PentaBand 3G and 9 Bands LTE, however in another discussion we verified (at least for the German model) that even thought the Nokia German website states PentaBand 3G and 9 Bands LTE, in the retail Box it only mentions QuadBand 3G (AWS missing) and PentaBand LTE.
With the Canadian model being PentaBand and Snapdragon's S4 Specs claiming that is fully supporting it, along with the programmable LTE, we really have no clue of whats really going on until Nokia, or anyone else clarify it...
I have a very bad feeling that the all 920s are PentaBand 3G and support all bands of LTE with programmable software but Nokia for some reason is locking specific bands on specific models/regions.
Hopefully in time we will clarify everything and hopefully its sooner rather than later..
nMIK-3 said:
I thought the same thing on PentaBand 3G and 9 Bands LTE, however in another discussion we verified (at least for the German model) that even thought the Nokia German website states PentaBand 3G and 9 Bands LTE, in the retail Box it only mentions QuadBand 3G (AWS missing) and PentaBand LTE.
With the Canadian model being PentaBand and Snapdragon's S4 Specs claiming that is fully supporting it, along with the programmable LTE, we really have no clue of whats really going on until Nokia, or anyone else clarify it...
I have a very bad feeling that the all 920s are PentaBand 3G and support all bands of LTE with programmable software but Nokia for some reason is locking specific bands on specific models/regions.
Hopefully in time we will clarify everything and hopefully its sooner rather than later..
Click to expand...
Click to collapse
Different frequency bands require different antenna design. It is probably very difficult to design an antenna that can satisfy all LTE bands even though the chipset can support it. So, instead, Nokia is probably going to selectively make different hardware with different antenna design to fit a specific region. Apple iPhone 5 uses the similar Qualcomm chipset and it only supports very limited LTE bands for international version.
foxbat121 said:
Different frequency bands require different antenna design. It is probably very difficult to design an antenna that can satisfy all LTE bands even though the chipset can support it. So, instead, Nokia is probably going to selectively make different hardware with different antenna design to fit a specific region. Apple iPhone 5 uses the similar Qualcomm chipset and it only supports very limited LTE bands for international version.
Click to expand...
Click to collapse
For 3G PentaBand is now standard in almost all chips and since the Canadian variant comes with PentaBand on board and the fact that is standard on the S4 I really see no reason of why Nokia will order a custom version of the S4 to just physically take off the AWS. It doesn't make any sense, so if its missing, most likely is turn off in firmware.
For the LTE. Qualcomm introduced a revolutionary technology called Software Defined Radio or simply SDR and the Snapdragon S4 Plus MSM8960 chip which is inside the Lumia 920, supports that technology. With SDR the chipset support all LTE bands from a low to high frequency, it can work in everything between, of course not at the same time, the software programs what frequency the antenna should be set.
If the Lumia 920 and its S4 really have SDR technology, they it will make sense for Nokia to have the firmware deride what LTE to make available to the user, by reading the SIM region and not providing individual updated per region, or based on device product number.
This finally solves a major issue for the manufactures because they do not have to build customs chips for specific countries, the software simply programs it. If you Google it you can find a lot of info regarding SDR. Of course we are not in the engineering team of the Lumia 920 line and its obvious whatever we say here is based on theory and specs that are available to us.
nMIK-3 said:
For 3G PentaBand is now standard in almost all chips and since the Canadian variant comes with PentaBand on board and the fact that is standard on the S4 I really see no reason of why Nokia will order a custom version of the S4 to just physically take off the AWS. It doesn't make any sense, so if its missing, most likely is turn off in firmware.
For the LTE. Qualcomm introduced a revolutionary technology called Software Defined Radio or simply SDR and the Snapdragon S4 Plus MSM8960 chip which is inside the Lumia 920, supports that technology. With SDR the chipset support all LTE bands from a low to high frequency, it can work in everything between, of course not at the same time, the software programs what frequency the antenna should be set.
If the Lumia 920 and its S4 really have SDR technology, they it will make sense for Nokia to have the firmware deride what LTE to make available to the user, by reading the SIM region and not providing individual updated per region, or based on device product number.
This finally solves a major issue for the manufactures because they do not have to build customs chips for specific countries, the software simply programs it. If you Google it you can find a lot of info regarding SDR. Of course we are not in the engineering team of the Lumia 920 line and its obvious whatever we say here is based on theory and specs that are available to us.
Click to expand...
Click to collapse
If you understand radio technology at all, you should know the most important part that make all things work is the radio antenna, not the chipset. The chipset itself can't receive or transmit radio signal without a proper antenna. Try to disconnect your car radio antenna and see how many stations you can receive
foxbat121 said:
If you understand radio technology at all, you should know the most important part that make all things work is the radio antenna, not the chipset. The chipset itself can't receive or transmit radio signal without a proper antenna. Try to disconnect your car radio antenna and see how many stations you can receive
Click to expand...
Click to collapse
We're going a bit off-topic from the thread here, but you're right - SDR defines the baseband, not the RF components.
If you look at Nokia's FCC filing for the RM-821, you can see it has two cellular antennas ("main" and "MIMO") for each of two bands ("HB" high-band and "LB" low-band). Presumably LB is used for bands below 1 GHz or so, while HB is used for bands above. So you can see it's not necessary to have different antennas for every band - bands 1 to 4 (including AWS) could also use the same antennas, for example.
However, each band needs its own RF filters to prevent interference from neighbouring channels, and also needs amplifiers that have flat gain over those bands. These RF components are usually band specific, relatively bulky and expensive, and there are some challenges to use several RF chains in parallel. To my understanding these are the limiting factors that explain why a given device tends to support maximum 4 or 5 LTE channels.
tomdjp said:
We're going a bit off-topic from the thread here, but you're right - SDR defines the baseband, not the RF components.
If you look at Nokia's FCC filing for the RM-821, you can see it has two cellular antennas ("main" and "MIMO") for each of two bands ("HB" high-band and "LB" low-band). Presumably LB is used for bands below 1 GHz or so, while HB is used for bands above. So you can see it's not necessary to have different antennas for every band - bands 1 to 4 (including AWS) could also use the same antennas, for example.
However, each band needs its own RF filters to prevent interference from neighbouring channels, and also needs amplifiers that have flat gain over those bands. These RF components are usually band specific, relatively bulky and expensive, and there are some challenges to use several RF chains in parallel. To my understanding these are the limiting factors that explain why a given device tends to support maximum 4 or 5 LTE channels.
Click to expand...
Click to collapse
You nail it.
foxbat121 said:
If you understand radio technology at all, you should know the most important part that make all things work is the radio antenna, not the chipset. The chipset itself can't receive or transmit radio signal without a proper antenna. Try to disconnect your car radio antenna and see how many stations you can receive
Click to expand...
Click to collapse
Is that a joke?? I am spending my time explaining what SDR is and I am getting that respond??
I am assuming that I am talking with a person that knows at least a modern chipset like the S4 package contains all the antennas for GSM/WCDMA/LTE a separate antenna for Bluetooth and Wifi, GPS (S4 also includes GLONASS), the CPU and the Adreno GPU.
All the above come in the same tinny chip that in the size of your nail. And all this is called the "chipset". Qualcomm does not use a separate antenna anymore its integrated to the chipset.
nMIK-3 said:
Is that a joke?? I am spending my time explaining what SDR is and I am getting that respond??
I am assuming that I am talking with a person that knows at least a modern chipset like the S4 package contains all the antennas for GSM/WCDMA/LTE a separate antenna for Bluetooth and Wifi, GPS (S4 also includes GLONASS), the CPU and the Adreno GPU.
All the above come in the same tinny chip that in the size of your nail. And all this is called the "chipset". Qualcomm does not use a separate antenna anymore its integrated to the chipset.
Click to expand...
Click to collapse
With respect, that's not right - the antennas and RF components are external to the chipset.
Go and get the SAR compliance test report for Nokia 920 from the FCC's website, and you can see diagrams showing the external antennas for cellular, WLAN/BT and GPS which are positioned in various places inside the phone's chassis (btw, the LB MIMO antenna is about 7 cm long!)
Or go and check out the iFixit teardown for iPhone 5 and you can see the same kind of thing...
tomdjp said:
With respect, that's not right - the antennas and RF components are external to the chipset.
Go and get the SAR compliance test report for Nokia 920 from the FCC's website, and you can see diagrams showing the external antennas for cellular, WLAN/BT and GPS which are positioned in various places inside the phone's chassis (btw, the LB MIMO antenna is about 7 cm long!)
Or go and check out the iFixit teardown for iPhone 5 and you can see the same kind of thing...
Click to expand...
Click to collapse
That is correct. Many manufactures are placing antenna extensions and putting additional GPS censor in more practical areas.
The actual GSM/WCDMA/LTE modem WiFi, Bluetooth and GPS for Qualacom solutions are placed inside the chipset.
Please see http://www.qualcomm.com/chipsets/snapdragon for more information.
4g / LTE
tomdjp said:
Has anyone tried using one of the white unlocked Lumia 920 from Clove (I guess the ones from Expansys are the same) on an LTE network?
Specifically, do you have the "4G" option in the "highest connection speed" settings?
In my case, although I am using an LTE SIM with an LTE network on a supported band, I only have "2G" and "3G" options in the Highest Connection Speed settings. So normally it is only connecting over HSPA. Through playing around a lot with scanning LTE bands with the Field Test tool (##3282#), I can sometimes get the device to connect to LTE, after which it works perfectly on LTE until reboot. But it's not really a long-term solution.
The default firmware on my device is country variant "CV GB SW Variant ID 276 v03" which (apart from the version number) seems to be the same firmware as that sold by Orange / T-Mobile in the UK (i.e. for 3G networks).
I was thinking about trying to flash the EE firmware, but concerned this could create other issues (such as end up locking the phone to EE, or to certain LTE bands, or something...). Any thoughts appreciated.
Click to expand...
Click to collapse
I go into into field test mode and it says 4g then asks what LTE Band. My phone shows 4G not LTE in top left... is it LTE or 3G+?
Does anyone know what the different bands stand for? (band 5 etc) under the field service menu?
zok-star said:
Does anyone know what the different bands stand for? (band 5 etc) under the field service menu?
Click to expand...
Click to collapse
Likely they are LTE bands (e.g. band 5 = 850 MHz), but as you probably noticed they don't completely match with the LTE band support of the device. Keep in mind this field test program was probably thrown together by Nokia's R&D guys for internal testing only (not for consumers), so could be a legacy of earlier testing, another device variant, or some other reason...
Anyway, it seems fine to keep this setting on Automatic.
dougwallace said:
I go into into field test mode and it says 4g then asks what LTE Band. My phone shows 4G not LTE in top left... is it LTE or 3G+?
Click to expand...
Click to collapse
Hi Doug, could you share what version of the Lumia 920 you have, and which firmware?
As mentioned in my mail above, there seems no problem to leave the 4G band on automatic, and the bands available to be selected don't seem relevant. (My device picks up Band 1 LTE networks even though band 1 is not in the list).
Regarding 4G vs LTE, my device (unlocked UK CV) shows 4G in the top left when it is connected to LTE. I assume this can be changed by Nokia depending on the operator's requirement (esp in the US where 4G means HSPA...). You can be sure you're on LTE by going back to the field test menu, selecting GSM option, then looking at "Radio Access Technology". If you're on LTE, it should say LTE there.
tomdjp said:
Likely they are LTE bands (e.g. band 5 = 850 MHz), but as you probably noticed they don't completely match with the LTE band support of the device. Keep in mind this field test program was probably thrown together by Nokia's R&D guys for internal testing only (not for consumers), so could be a legacy of earlier testing, another device variant, or some other reason...
Anyway, it seems fine to keep this setting on Automatic.
Click to expand...
Click to collapse
I've kept mine on all automatic and i have noticed it switch to 4G at times, but then when i go to use it, it'll flick back to 3G... I'll need to test this in CBD sometime this week.
I got my device from clove, but im in Australia on Telstra 4G network. They use 1800mhz.
zok-star said:
I've kept mine on all automatic and i have noticed it switch to 4G at times, but then when i go to use it, it'll flick back to 3G... I'll need to test this in CBD sometime this week.
I got my device from clove, but im in Australia on Telstra 4G network. They use 1800mhz.
Click to expand...
Click to collapse
Hi, yes better to test in CBD where there's strong LTE signal.
In your Settings => Mobile Network, do you have a "4G" option under "Highest connection speed", or is it 2G and 3G only?

[Q] Omate TrueSmart change baseband freq ?

Hallo, I bouth by mistake a 1900mhz TrueSmart and cant use 3g here in EU, so I was thinking maybe I can change the baseband freq to 2100mhz. I did abit of research and it seems that the MT6572/MT6166 is capable of running in both the 1900mhz and 2100mhz 3G-FDD baseband freq, but is it controlled by the firmware or does it use different pin's on the SoC, and if so can I rewire the pin's and the use the 2100mhz firmware ?
Hope someone can help me with this, thanks
Viperdk81
I'm also interested in the different models. Installing ROMs with the other baseband used to brick devices back in the bad old days of Windows Mobile, has that changed?
Rewiring is a definite no-go. The SOCs are a BGA package I think, meaning hundreds of solder balls under the chip where you can't see them.
Changing basebands has been done, the first US devices had EU antennas.
The result was not so good, the antennas are tuned for 1900/2100.
But 2G-EDGE is not so bad for the apps usable in the TS.
However, especially city coverage and some operators, are 3G only...

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