[Q] Convert F180K to F180S - LG Optimus G (International)

Hello guys.. i have a problem.. I have a optimus G with soft F180K (its for KT network) and i have a LTE plan in SKtelecom (F180S) but my LTE connection its not working. Can somebody help me by answering to this questions?
If i flash the F180S will solve my problem? Its this even possible? If yes, can somebody point me to the right way ?
Thanks in advance.

completition
So guys to complete a little the status of my phone.. i have root access.. also CWM installed.. my question is if i install a custom rom i will get access to more bands for LTE or the device is limited somehow..
thanks..

confirm your in Korea ? right
i have flashed a basebands of k to l and l to K so i can confirm, its save but i didnt got the signals.
flashing kernel should be ok too because its the same device
so i say yes you can flash, but if both networks uses same lte frequencies it will work with proper apn, other wise no.

yes im on korean network. im not sure if both work on same lte frequencies . the apn its not a problem, i have .. but atm it shows connecting to 4G but no data in... so something its wrong.. i think its software related .. i can connect to 3G but no 4G..my phone have for LTE B3 (1800) and B8 (900).. by installing a custom rom will abtain more freq.. ? or ill have to do more than that,, and if yes what i need to do ? one link yould be nice noob friendly if possible
thanks..

anoth3r said:
yes im on korean network. im not sure if both work on same lte frequencies . the apn its not a problem, i have .. but atm it shows connecting to 4G but no data in... so something its wrong.. i think its software related .. i can connect to 3G but no 4G..my phone have for LTE B3 (1800) and B8 (900).. by installing a custom rom will abtain more freq.. ? or ill have to do more than that,, and if yes what i need to do ? one link yould be nice noob friendly if possible
thanks..
Click to expand...
Click to collapse
1: it has to be apn if your 3g works
2: software doesn't enable somethings that's not there in hardware, so if both sets have same frequencies radio and both networks uses same it will work.
skip custom and flash stock roms and if you get zero network that try your model's baseband.
but remember it is possible basebands are blocked to work on others network.

Thanks.
atifsh said:
1: it has to be apn if your 3g works
2: software doesn't enable somethings that's not there in hardware, so if both sets have same frequencies radio and both networks uses same it will work.
skip custom and flash stock roms and if you get zero network that try your model's baseband.
but remember it is possible basebands are blocked to work on others network.
Click to expand...
Click to collapse
I hoped that the hardware supports more LTE freq and its only a limitation by software..
Thanks..Meanwile i found out everithing i nedeed but its a lot of thing to read .. thats why I ask any moderator to close the thread if possible not to pollute anymore the forum..
Thanks once again..

wiki
KT Corporation South Korea 850
KT Corporation South Korea 900
KT Corporation South Korea 1800
SK Telecom South Korea 850
SK Telecom South Korea 1800
this is what i found on wiki.. the LTE freq of the korean networks. So my phone its 1800 capable.. can someone give me some ideeas why i dont have LTE ?

Red marks ?
Frequencies used on SKTelecom Network in Korea
Frequency Frequency Width Protocol Class Note
800 MHz (824~829,869~874) 10MHz CDMA 2G
850 MHz (829~839,874~884) 20MHz LTE 3.9G Band 5 (main frequency)
1800 MHz (1715~1725,1730~1735,1810~1830) 35MHz LTE 3.9G New band 3
1800 MHz (1755~1765,1850~1860) 20MHz LTE 3.9G Be returned by 1Q 2014
2100 MHz (1930~1960, 2120~2150) 60MHz UMTS/HSPA 3.5G
2300 MHz (2300~2327) 27MHz Mobile WiMAX 3.9G
KT
Radio frequency range frequency width Generation Radio Interface Assignment Terms License Note
800 MHz (811-817,856-862) 12 MHz TRS
850 MHz (819-824,864-869) 10 MHz 3.9G LTE 50 billion won[18] for 10 years planned
900 MHz (905-915,950-960) 20 MHz 3.9G LTE
1800 MHz (1735-1740,1745-1755,1830-1850) 35 MHz 3.9G LTE 2G by Jan/Mar 2012
2100 MHz (1960-1980,2150-2170) 40 MHz 3.5G W-CDMA 130 billion won for 15 years
2300 MHz (2330-2360) 30 MHz 3.9G WiBro 12.68 billion won with rural area support Mar 2019(for 7 year)
its because of what i marked in red _

Nope,you can't enable other frequencies. That's why there are so many variants of optimus G. There is no phone supporting all LTE from al regions.Unlike 2G/3G,which have a global standard,LTE is still young,evolving and developing.

Related

Was it a mistake bringing this phone to Israel?

I live in Israel. I used to live in the US. Last time I was in the US I bought this phone and brought it over. I did my research beforehand and knowingly purchased the phone assuming I would have full compatible with Israeli service providers...
Now, I'm not so sure anymore. I just tried the phone today.. maybe 5 hours of use. Still have the default OS installed. No root or anything. The signal seems to fluctuate going between Edge and higher speed networks.
Here's what it says about Cellcom on wikipedia:
Cellcom eventually sought to replace the 850 MHz TDMA frequencies it owns with standard 900 MHz GSM frequencies but Pelephone and Partner (Orange) petitioned the Ministry of Communications to deny this for technical reasons. This put Cellcom at a disadvantage since though most of its users had converted to GSM, they were not able to make use of the lower frequency's better in-building penetration and greater cell reach.
With its entry into 3G wireless services Cellcom demoed the first mobile video call in Israel. Since the beginning of 2006, Cellcom began deploying a 3G UMTS-2100 network nationwide which by the end of 2007 covered than 87% of the population. Cellcom was the first in Israel to launch an HSDPA network (also called "Generation 3.5") nationwide. In 2011, Cellcom began to deploy UMTS services in the 850 MHz band, employing unused capacity in that frequency range since it had very few TDMA customers remaining. The Israeli Ministry of Communications has approved Cellcom's plan to shut down the TDMA-850 network on 31 December 2011.
Click to expand...
Click to collapse
It supports the following networks:
GSM, GPRS, EDGE, UMTS, HSDPA, SMS, MMS, iMode
Click to expand...
Click to collapse
I just put the SIM card back in my old international Galaxy 2 i9100T and it'll fluctuate between HSDPA: 8 and HSPA+:15. Also it displays an H icon in the status bar (I don't think Resurrection rom is capable of displaying an H+).
Anyway, I'm going to put the SIM back in the Galaxy 3 t999. It now fluctuates between EDGE: 2, HSPAP: 15, HSPA: 11, and UMTS: 3. The signal is shifty and only displays a 3G at the top, no H like the international Galaxy 2.
Here's what wikipedia lists as the differences between the two models of the Galaxy 3 (standard international i9300 and my t-mobile t999):
Model GT-I9300;
2G networks: 850, 900, 1,800, 1,900 MHz GSM / GPRS / EDGE
3G networks: 850, 900, 1,900, 2,100 MHz UMTS / HSPA+
no 4G of course
max speed: 21 Mbit/s HSPA+
Click to expand...
Click to collapse
and
Model SGH-T999;
2G networks: 850, 900, 1,800, 1,900 MHz GSM / GPRS / EDGE
3G networks: 850, 1,700 (AWS/Band IV), 1,900, 2,100 MHz UMTS / HSPA+ / DC-HSPA+
no 4G either
max speed: 42 Mbit/s DC-HSPA+
Click to expand...
Click to collapse
and this is what gsmarena.com says about the cellular capabilities of Israel:
2G capabilities: Required GSM 900 Recommended GSM 900 and GSM 1800
Click to expand...
Click to collapse
3G capabilities: Required UMTS 2100 Recommended UMTS 850 and UMTS 2100
Click to expand...
Click to collapse
So what do you think is going on??? Doesn't the t-mobile Galaxy 3 t999 support all the networks that Israel currently has operating???
I took my T999 to Israel about a week after buying it in the States.
While vacationing there, I got an Orange SIM with a local number and a 5GB plan.
Everything was working fine. My phone was on 3G almost everywhere in the country, and it rarely dropped below three bars.
Is your phone unlocked? Could it be a Cellcom problem? Try borrowing a friend's Orange SIM and see if it works any better.
Yea it's unlocked. Even despite the speed issue I'm starting to think maybe I should have gotten the international version, there's nowhere near as much development for this version. Maybe I can trade?
PhrostB said:
Yea it's unlocked. Even despite the speed issue I'm starting to think maybe I should have gotten the international version, there's nowhere near as much development for this version. Maybe I can trade?
Click to expand...
Click to collapse
But we have a more functioning Jellybean.

[Q] Difference between LTE and non-LTE, US and European version and LTE frequencies ?

Dear xda Members and / or galaxy note 2 Users,
I'm a bit confused about the various versions of the Note 2.
In a few days I'll visit Florida and intend to buy the LTE version from Walmart.
ht.tp://ww w.walmart. com/ip/Samsung-Galaxy-Note-II-Smartphone-Titanium-Gray/22374238
(I don't know if shoplinks are allowed, but you can't buy it directly here and i hope you can accept it anyway this time)
However, I need to know whether the phone works in Europe/Germany and with which communication standards.
Is there a difference between the US and European GT-N7105?
on ht.tp://e n.wikipedia. org/wiki/Samsung_Galaxy_Note_II i found various versions called
AWS phone
CDMA/EV-DO phone
TD-SCDMA phone
Dual-cell HSPA phone.
and the LTE where they tell that it would be kind of an "International" phone.
"Most of the variants support GSM/GPRS/EDGE in the 850 Mhz, 900 Mhz, 1.9 Ghz, and 2.1 Ghz bands; and UMTS/HSPA+21 in 850 Mhz, 900 Mhz, 1.9 Ghz, and 2.1 Ghz"
Does the version i found on the walmart page support UMTS? there are only specifications that it can handle GSM and LTE, but not which LTE Bands.
(I think I need support for 800 MHz, 1800 MHz and/or 2600 MHz in Western Europe)
correct me if i'm wrong with any statement and enlighten the confusion for me if pssible
Thanks in advance !
PS: I'm not allowed to post outside links here, so I addet space characters before .com and .org and in the www and the "en" and dots between the ht.tp's. remove them before copying.

[Q] Can I use a Korean note 2 in the US?

I recently purchased a galaxy note 2 in Korea and I would like to bring it back and use it in the states with AT&T. I read that 4g would not be compatible with the phone but 3g will work? I plan to use this phone for business and I realized the 1 is not designated as voicemail due to it being a Korean phone. Is there way to add this feature on? Are there any other features that I will not be able to use with AT&T? I realize I won't be able to watch tv on my phone anymore.
JelliK said:
I recently purchased a galaxy note 2 in Korea and I would like to bring it back and use it in the states with AT&T. I read that 4g would not be compatible with the phone but 3g will work? I plan to use this phone for business and I realized the 1 is not designated as voicemail due to it being a Korean phone. Is there way to add this feature on? Are there any other features that I will not be able to use with AT&T? I realize I won't be able to watch tv on my phone anymore.
Click to expand...
Click to collapse
Try to root it n install you custom software,Do your homework around the forms n find the stuff you need n support the developers? You won't regret it! !
Sent from my SAMSUNG-SGH-I317 using xda premium
Dnice25 said:
Try to root it n install you custom software,Do your homework around the forms n find the stuff you need n support the developers? You won't regret it! !
Sent from my SAMSUNG-SGH-I317 using xda premium
Click to expand...
Click to collapse
I don't want to root it and I prefer to keep it stock. I just need to know if the phone will work with At&t's 3g network. It would also be nice if i could fine a way to check my voicemail.
JelliK said:
I recently purchased a galaxy note 2 in Korea and I would like to bring it back and use it in the states with AT&T. I read that 4g would not be compatible with the phone but 3g will work? I plan to use this phone for business and I realized the 1 is not designated as voicemail due to it being a Korean phone. Is there way to add this feature on? Are there any other features that I will not be able to use with AT&T? I realize I won't be able to watch tv on my phone anymore.
Click to expand...
Click to collapse
Frequencies used on the AT&T Network (USA)
Frequency Protocol Class
850 MHz GSM/GPRS/EDGE 2G
1900 MHz GSM/GPRS/EDGE 2G
850 MHz UMTS/HSPA 3G
1900 MHz UMTS/HSPA 3G
700 MHz LTE 4G
1700/2100 MHz(AWS) LTE 4G
T-Mobile (USA)
850 MHz/1900 MHz GSM/GPRS/EDGE/UMTS/HSPA
1900 MHz GSM/GPRS/EDGE 2G (EDGE)
1700 MHz UMTS/HSPA/HSPA+ 3G/4G
1900 MHz UMTS/HSPA/HSPA+ 3G/4G
1700 MHz LTE 4G
If that's the international version Note II check and see what frequency's it supports,and compare to AT&T or T-Mobile's. International devices are not carrier locked
If it's a branded phone meaning you got it from your cellar carrier, It could be locked to that provider only.
If your using the unlocked phone, look up the specs on your device and see what it supports, if it matches up to the above frequencies you should be good
budco2000 said:
Frequencies used on the AT&T Network (USA)
Frequency Protocol Class
850 MHz GSM/GPRS/EDGE 2G
1900 MHz GSM/GPRS/EDGE 2G
850 MHz UMTS/HSPA 3G
1900 MHz UMTS/HSPA 3G
700 MHz LTE 4G
1700/2100 MHz(AWS) LTE 4G
T-Mobile (USA)
850 MHz/1900 MHz GSM/GPRS/EDGE/UMTS/HSPA
1900 MHz GSM/GPRS/EDGE 2G (EDGE)
1700 MHz UMTS/HSPA/HSPA+ 3G/4G
1900 MHz UMTS/HSPA/HSPA+ 3G/4G
1700 MHz LTE 4G
If that's the international version Note II check and see what frequency's it supports,and compare to AT&T or T-Mobile's. International devices are not carrier locked
If it's a branded phone meaning you got it from your cellar carrier, It could be locked to that provider only.
If your using the unlocked phone, look up the specs on your device and see what it supports, if it matches up to the above frequencies you should be good
Click to expand...
Click to collapse
Ok so I got these specs for my svh-250k and looks like 3g will be compatible but it also picks up umts 2100 and att LTE frequency uses 2100 for 4g. Am I wrong? Do I need to look at the secondary cellular network?
SVH-250K
Cellular;Networks: GSM850, GSM900, GSM1800, GSM1900, UMTS1900 (B2), UMTS2100 (B1)
Secondary_Cellular_Networks: LTE850 (B5), LTE1800 (B3)
Should I sell my korean note 2 and purchase one in the states? I really would hate to get rid of my brand new amberbrown 32 gig phone and downgrade to a boring white or pebble blue 16gig phone. Decisions decisions.....
I'm in the same situation did you already go back to the states and try it out?
JelliK said:
I'm in the same situation did you already go back to the states and try it out?
Click to expand...
Click to collapse
This thread is nearly 5 months old, and the OP only posted 4 times in this thread....total...
You will likely not get an answer from the OP...
Do a general search for info on the Korean note threads...as we have 4 or 5 that may help you in getting your answer....
Good luck to you....g
JelliK said:
I'm in the same situation did you already go back to the states and try it out?
Click to expand...
Click to collapse
Just reading the specs I would go with T-Mobile, Faster HSPA speeds if you decide to keep your amber brown. Only downside is T mobile's coverage isnt as good as AT&T but if you re in a major city it shouldnt be a problem.
Good luck!

UMI X2 and T-Mobile 3G

I purchased the newly released UMI X2 Android phone. I am unable to use the TMobile 3G network. I am only able to use 2G/EDGE.
Voice and data quality are very bad, almost the phone is unusable. I spoke with T-Mobile and was informed that my modem does not support 1700 MHz and there are effort to re-farm TMobile network to support 3G on 1900Mhz but not set date yet. When I scan for available network I get three networks were available
T-Mobile 2G
AT&T 3G
AT&T 2G
Operating System: Android 4.2.1 OS
Processor: 1.2GHz MTK MT6589 quad-core processor
Connectivity Technology: GSM network & WCDMA - Standard SIM card
Network Band: GSM 850/900/1800/1900 MHz & WCDMA 850/2100MHz
Data Technology: GPRS, EDGE, HSPA
Baseband version
MOlY.WR8.W1248.MD.WG.MP.V2.P1
I would appreciate any help to get my phone to work on 3G.
YAF said:
I purchased the newly released UMI X2 Android phone. I am unable to use the TMobile 3G network. I am only able to use 2G/EDGE.
Click to expand...
Click to collapse
Did you make any progress with this? I recently purchased UMI X2, for use with T-Mobile UK. But have the same problem of not being able to connect to 3G networks - it works okay on 2G/EDGE.
I know the phone supports 3G on 2100MHz, and there's been some debate whether it supports 850/900MHz as well, but I've not found a definitive answer to that.
There's an operator in the UK (Hutchinson 3G UK Ltd) that only have a license for 2100MHz. So I was expecting the phone to work fine on their network- but no go... phone won't register on network at all - even though it shows in the available networks list.
I'm now searching to see if anyone else has been having problems - as it's beginning to look like faulty phone hardware - rather than trying to use unsupported frequencies...
acid meaand
I am still in the same situation, I am unable to use the 3G network for T-Mobile.
I am looking into getting 4G Wireless Hotspot modem $50 from the same carrier, use my SIM card on the modem, and use my UMI X2 as pure IP phone. There are many issues, but it looks promising.
Please keep me updated with any progress you make.
Regards;
I have the same problem...
I have this same problem with a operator here in Brazil. Every 3G operator in Brazil, using 2.1GHz band, works fine except one: VIVO.
I can see the network when I click on "manual search", but the phone can't connect. My baseband is:
moly.wr8.w1248.md.wg.mp.v7.p1 2013/04/10 00:39
How can change this baseband to another? I tried to update firmware but unfortunately the newest firmware has the same baseband version.
firmware update will not solve the problem
Firmware update will not solve the problem. Until the manufacture identifies the problem and provides a solution, the problem is outstanding.
Beside the hardware has to be compatible and can support more frequencies which no one can confirm for the UMI or any other chines unlocked phones.
But, this is just my humble opinion.
I Found a solution (at least for me)
I think I found a solution for my problem. I flashed this very new (2013/07/17) rom, with a new baseband MOLY.WR8.W1248.MD.WG.MP.V7.F2.P1, 2013/07/10 23:14 that corrects 3G dropouts and disconnects. Now my 3g works find, with H and sometimes H+. Fast and reliable like it should be. The link for this new ROM is:
http://www.needrom.com/mobile/umi-x2-based-official-for-europeus/
Thanks for the update.
I have two questions.
1- There are two files in the link you provided UMI-X2-basedon_Official_250613.zip and UPDATE_UMI-X2-THB-ROM-based_on_Official_170713.zip. Which do use?
2- You mentioned the updated corrected 3G dropouts and disconnects, but do you know if the update have these frequencies to get 3G?
3G (850, 900, 1700, 1900, 2100 MHz)
HSPA+ 42
P.S
GSM/EDGE/GPRS (850, 900, 1800, 1900 MHz) original specs
YAF said:
Thanks for the update.
I have two questions.
1- There are two files in the link you provided UMI-X2-basedon_Official_250613.zip and UPDATE_UMI-X2-THB-ROM-based_on_Official_170713.zip. Which do use?
2- You mentioned the updated corrected 3G dropouts and disconnects, but do you know if the update have these frequencies to get 3G?
3G (850, 900, 1700, 1900, 2100 MHz)
HSPA+ 42
P.S
GSM/EDGE/GPRS (850, 900, 1800, 1900 MHz) original specs
Click to expand...
Click to collapse
I used the file UPDATE_UMI-X2-THB-ROM-based_on_Official_170713.zip. It was based on the Official ROM from 07/17/2013, but I was unable to find the official stock version. This version has a very new bandbase that, supposedly, fixed the problem with 3G on some operators.
3G on Brazil is on 2100 MHz, sometimes on 850MHz but in my case the problem was on 2.1GHz band. Three WCDMA operators in Brazil, all in the same 2.1GHz frequency, work fine, but VIVO doesn't. Now, with the new rom, it works with no drop outs for over a day now.
no changes or additional frequencies
I successfully applied the update but no changes or additional frequencies
I have serious issues with HSDPA, t-mobile uk works but only on GPRS and it keeps dropping out. GiffGaff seems to work without dropping out. It has worked for a minute on HSDPA today but only once. Other than that t-mobile has been dropping out badly. GPRS works for a bit then it drops out. I have took an MTK modem log with MobileUncle Tools to see what it says but haven't looked at it yet. Trying to work out if it is a hardware issue or Baseband.
I get this from my X2 Radio Logcat:
https://www.friendpaste.com/2ltEW0wuHjzkDZiRQb9m7g
hi everyone, i have UMI X2 and i repair the bad gsm signal, i put to gsm connector Cu wire and signal now working very good!!!!!! sorry for my english i am from slovakia
:victory:
00alkskodi00 said:
hi everyone, i have UMI X2 and i repair the bad gsm signal, i put to gsm connector Cu wire and signal now working very good!!!!!! sorry for my english i am from slovakia
:victory:
Click to expand...
Click to collapse
Hi,
do you have a description and a photo of how you did it?
How long the Cu wire has to be? And where to connect it?
Many thanks in advance.

Will the LTE version bought in the US work in the UK

I see that the T-Mobile LTE version is available in the US on the play store. It is significantly cheaper than in the UK.
I bought the v1 WiFi nexus 7 in the US and had no issues. If I buy the LTE version from the US can I assume that I can use it on a UK mobile network without issue? I presume both are gsm and there is no issue?
Thanks
Sent from my Nexus 4 using Tapatalk 4
aidanbree said:
If I buy the LTE version from the US can I assume that I can use it on a UK mobile network without issue? I presume both are gsm and there is no issue?
Click to expand...
Click to collapse
Even GSM networks operate on different frequencies on different continents. LTE networks may have other frequencies than GSM networks.
I found a (german) comparisation list for LTE frequencies. For US, there are 700, 1700, 1900 and 2100 MHz listed; for UK there are 800, 1800 and 2600 MHz noted.
So, if you buy an US version, it will be useless in UK. Besides the useability, you may have to pay taxes on import, additional to p&p. Will it still be cheaper then?
HSishi said:
.../...
For US, there are 700, 1700, 1900 and 2100 MHz listed; for UK there are 800, 1800 and 2600 MHz noted.
.../...
Click to expand...
Click to collapse
For France, same frequencies than UK.
We will use someday 700 MHz also.
Some of us are waitin 4 an Euro LTE Nexus 7.
I found something about the Nexus 7 ... on http://www.google.com/nexus/7/ .
Scroll down until you see a link "Tech Specs". Open it and scroll a bit down; all GSM, UMTS and LTE frequencies are listed for different world areas.
The US and the EU version share most LTE frequency cpabilities, but the US version can operate on 700 and 750 MHz (which the EU device can't use) while the EU one can operate on 800 and 2600 MHz (which the US device can't use).
So it depends on your carrier's frequencies if you can operate an US device in UK or not.
HSishi said:
I found something about the Nexus 7 ... on http://www.google.com/nexus/7/ .
Scroll down until you see a link "Tech Specs". Open it and scroll a bit down; all GSM, UMTS and LTE frequencies are listed for different world areas.
The US and the EU version share most LTE frequency cpabilities, but the US version can operate on 700 and 750 MHz (which the EU device can't use) while the EU one can operate on 800 and 2600 MHz (which the US device can't use).
So it depends on your carrier's frequencies if you can operate an US device in UK or not.
Click to expand...
Click to collapse
My brother is over in the US next week and could therefore bring it back without P&P and most likely other charges.
In the UK the price is 320 GBP so the saving is around 100GBP with the currency conversion.
Currently I have my mobile with T-Mobile and a sim that I use in a mifi on Three. I am looking to move the Three mifi sim into the Nexus but I don't think that looks like it would work as it states they will use 800 and 1800. I presume that both frequencies are used?
The US device can't use the 800 MHz band, but the 1800. Maybe your carrier operates LTE at 1800, maybe not. Can't say that from here (Germany).
Going to take a chance. The US price for the LTE is cheaper than the WiFi only in the UK. Will advise how I get on
Sent from my Nexus 4 using Tapatalk 4
Same here Czech rep, 32 gb lte is the same price than 16 gb wifi here. But i need the 3G/4G internet can't risk it i must know
Aidenbree: this is exactly what i was thinking of doing too, so thanks for asking the question! I'm also on Three and would be really interested to hear how you get on. £100 saving is worth thinking about!
are they have different hardware ?
North America:
GSM: 850/900/1800/1900 MHz
HSPA+: 850/900/1900/1700/2100 (AWS) MHz (Bands: 1/2/4/5/8)
LTE: 700/750/850/1700/1800/1900/2100 MHZ (Bands: 1/2/3/4/5/13/17)
Europe:
GSM: 850/900/1800/1900 MHz
HSPA+: 850/900/1900/1700/2100 (AWS) MHz (Bands: 1/2/4/5/8)
LTE: 800/850/1700/1800/1900/2100/2600 MHz (Bands: 1/2/3/4/5/7/20)
or only radio software different?
if they just use different radio, it may work by change radio
ygvuhb said:
are they have different hardware ?
North America:
GSM: 850/900/1800/1900 MHz
HSPA+: 850/900/1900/1700/2100 (AWS) MHz (Bands: 1/2/4/5/8)
LTE: 700/750/850/1700/1800/1900/2100 MHZ (Bands: 1/2/3/4/5/13/17)
Europe:
GSM: 850/900/1800/1900 MHz
HSPA+: 850/900/1900/1700/2100 (AWS) MHz (Bands: 1/2/4/5/8)
LTE: 800/850/1700/1800/1900/2100/2600 MHz (Bands: 1/2/3/4/5/7/20)
or only radio software different?
if they just use different radio, it may work by change radio
Click to expand...
Click to collapse
Surprisingly, the radio software is the same, in fact everything software wise is identical between both devices, there is but a single firmware for both devices. I am not even sure if the US version can't technically use band 7 and vice/versa, has anyone tried to connect to a LTE network in the EU using a US LTE Nexus 7 ? Maybe those specs are just "limited" to comply with FCC/EU regulations/certifications (Paying for the CE certification for a specific frequency can be expensive)
If there is a difference then some flag must be set hardware wise to tell the radio what frequencies it can tune to.
mathieulh said:
Surprisingly, the radio software is the same, in fact everything software wise is identical between both devices, there is but a single firmware for both devices. I am not even sure if the US version can't technically use band 7 and vice/versa, has anyone tried to connect to a LTE network in the EU using a US LTE Nexus 7 ? Maybe those specs are just "limited" to comply with FCC/EU regulations/certifications (Paying for the CE certification for a specific frequency can be expensive)
If there is a difference then some flag must be set hardware wise to tell the radio what frequencies it can tune to.
Click to expand...
Click to collapse
omg
the radio is the same
seem they fix the band though hardware
any chance the software detect the mobile services provider to decide using which band

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