Hey,
i know there is an issue where the LTE doesn't switch after a voice call from 3G and doesn't switch to LTE (band 66 freedom mobile) the same issue was resolved with the oneplus5T, just wondering if there going to send a fix or will it be in the Oreo update?
I haven't experienced that, but this phone has horrible reception, which I don't think is related to the processor.
Related
T-mobile has been announcing a variety of improvements to their LTE wireless network,:
4×2 MiMo, 15+15 and 20+20 LTE networks, 700 mhz.
Is any of this relevant to N4's running LTE? What about the N5?
kmandel said:
T-mobile has been announcing a variety of improvements to their LTE wireless network,:
4×2 MiMo, 15+15 and 20+20 LTE networks, 700 mhz.
Is any of this relevant to N4's running LTE? What about the N5?
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Absolutely.
scream4cheese said:
Absolutely.
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I'm surprised at your answer. As far as frequency, I thought the N4 only had the hardware for LTE at 1700mhz. For 4x2Mimo I thought it depended on the antenna arrangement in the phone (as well as the tower). I don't know what factors are related to 15+15 and 20+20.
The answer I expected was no for N4 and possibly yes for N5.
The n4 definitely doesnt support 700mhz anything for lte, no existing device (officially) supports band 12, though many recent ones support band 17 (which does not help for band 12).
Weither or not it can do carrier aggregration on the same band in hardware: i doubt it can do it in software (this is just opinion until someone can test it with a terminal emulator).
Even more basic stuff like cell tower location services is broken while in LTE on the N4.
Multi band carrier aggregration definitely isnt possible as the N4 only "supports" a single band.
The S4pro and S600 (technically the MDM9x15M as they both use it) platform should only support a maximum of 2x2 MIMO as they're all only rated for LTE Cat 4 (E-UTRA - User Equipment (UE) categories - Wikipedia)
It's the S800 and newer that use the MDM9x25 and that supports LTE Cat 5, which includes 4 stream MIMO
Hello I have a problem with my LG G2 (D802) Europe model! My carrier have relase 4G in bands 38B 2600 MHz TDD buth lg g2 d802 not have this bands, has instead bands TDD 40B 2300 Mhz!
I can add this bands on my g2?
The new license the company in 2600 MHz band (TDD) has been acquired by a process of transfer of RCS & RDS and 2K Telecom, with the agreement of the National Authority for Management and Regulation in Communications (ANCOM).
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Thank you in advance! And sorry for my bad English!
Unfortunately these bands are not something we can add/remove but some chips are hardware capable only that they're restricting them for some reasons.
LE: https://www.youtube.com/watch?v=AYe4CLJzmQg#t=76
Try to follow the clip above if you are from RO(the guy who made this wrote the instructions in romanian), should give you what you wanted but apparently everybody is still complaining about band 38 not doing much
I'm also in the same situation, i keep finding stuff that leads me to think that it's possible, first of all the snapdragon 800 supports LTE band 38, there are several threads that have unlocking guides and claim in the first post that several devices have been unlocked (I did not manage on mine unfortunately).
From what i've seen the One plus one has managed to unlock that LTE band, a Galaxy S5 and several phones that have MTK chipsets (with only root access and an app).
So unlocking LTE bands is not impossible (if there is hardware support of course) .
Really hope someone will give us some useful info on this. (we got 4g and extra 10gb of traffic for free, but only on 4g)
Hi everyone! I hope this was not discussed before but, really I'm trying to identify my phone and i couldn't.
Ok I bought it in Banggood and when I did the order i chose YD201 version for have LTE in my country (Spain) but my surprise is when i received the phone in the box described like YD206. I start the phone and inside of the rom , when i was woing to settings i found is YD201, so how to know it? Someone happened the same?
Thanks in advance.
I think that there is a big confusion with Yotaphone 2 phones.
There were some versions that used Snapdragon 800 chip, that is able to use band 20 (800MHz).
But all the latest use Snapdragon 801, which seems is not able to use band 20. I don't know if it is just lacking the antenna or chip has no support.
You can look up numerous band unlocking tutorials and you'll discover none of them are able to unlock band 20 800MHz.
You can still get LTE on other frequencies. LTE runs on 800 MHz, 900 MHz, 1800 MHz and 2600 MHz, depends on your operator.
I'd be happy if someone prooved me wrong.
LTE unlocking tutorial:
http://forum.xda-developers.com/showpost.php?p=56577252&postcount=455
Can the OP5 get support for this band via a firmware update as the SD835 is capable of 600MHz?
Does anyone know?
I have a feeling that even with the firmware upgrade it won't help. It reminds me of what was found in unlocking the OnePlus One's LTE bands (for band 12 access). If there's not an antenna hooked up then even with the band unlocked it's unusable due to no antenna. That's one reason we don't have native FM support is the FM antenna pins aren't hooked up.
Hi,
So, I'm interested in getting a cheap 4.7" Android phone to use in the United States and sometimes in Canada. I zeroed in on the Galaxy A3 2017. The model that works best in North America is the A320Y, but so far I've only been able to find it online at some store in New Zealand. Since finding the answer to the question, Will shipping the device from NZ to the United States cost customs fees (and if so, how much)? is a question harder to answer than the question, Where is Jimmy Hoffa?, I've begun considering getting one of the models listed in the title of this thread.
But there's a problem. Those models in the title don't work on US LTE. Actually, according to frequencycheck.com, the A320FL has one LTE band (Cricket/AT&T) and the other models have none of the LTE frequency bands. I wonder if frequencycheck.com is accurate. I'm also wondering if there are other differences between those models. I'm also wondering what happens if I put a Cricket SIM inside these phones. Even though frequencycheck.com says I will get no LTE bands, will putting a Cricket SIM inside suddenly activate an LTE band?
The other question I was wondering: Do I even need LTE if I don't care much about download speed? Maybe HSPA+ or whatever it is will be good enough? If I don't have LTE, will I get less reception indoors or outdoors, or will I get the same exact reception/coverage but just be relegated to 3G/4G/HSPA+ service? What is the benefit of LTE besides data speed?
Finally, which one of these models has the most ROM support? Can they all be bootloader unlocked?
I know I'm asking a whole bunch of questions at the same time. Sorry. I appreciate any help I can get with this!
To answer some:
That website appears to be accurate. Doesn't only list AT&T for a320fl once expanded.
As for SIMs activating bands, I haven't seen it on Samsung, only RRC Release, VoLTE, LTE CAT, maybe individual CA combos. The disabled bands are shown as CAL_DEFAULT vs CAL_PASS. Guess it's like Snapdragon.
HSPA+ vs LTE
The range of 3G/4G is close with the same frequency, but 4G performs better at cell edge (low signal).
Speed (anyway)
Well, 3G is usually given its own spectrum at first, then the 2G is refarmed into 3G. Today, 3G gets refarmed to 4G. This leaves 3G with a small amount of spectrum, it becomes prone to interference. It's bit like multiple tv/fm stations on the same channel number. Other 'tv/fm stations' have to be filtered out by the phone, this lowers the speed. 4G gets some too, along with echoed complex signals, but it gets less.
3G supports up to 5MHz per carrier, 4G up to 20MHz. 3G can have carrier aggregation, so 5+5+maybe 5. Expect up to 2 carriers (not every combo) on 4G, unless a specific SIM is detected in specific phone models. Along with that, 4G can have better spectral efficiency.
If you are going with 3G(HSPA, sometimes called '4G') anyway, you should know that there are these states (usually called fast dormancy) to save power.
DCH = Full speed.
FACH = Up to 32kbps. 4kB/s. Maybe RRC Release downgrade is visible (H+ to H).
PCH = No data.
Anything below is further away from data.
For high performance, keep the speed above 4kB/s, at the cost of battery. LTE has a faster start.
Sometimes, the speed is simply constrained by backhaul, the internet access that goes to the tower.
Thanks. So, to your knowledge, the F and F DS variants shouldn't work on LTE in the United States? I was in a live chat session with someone on Samsung's UK website and she said that the F variant would work on LTE in the United States. I then sent them an email to confirm and they replied with:
As per our resources from our technical review, the following Network is available in our Samsung Galaxy A3 (2017) for the US.
Network
Band: Quad
GSM 850: YES
GSM 900: YES
GSM 1800: YES
GSM 1900: YES
UMTS 2100: YES
GPRS: YES
4G: YES
HSDPA: YES
Works in the US: YES
I replied to ask them why frequencycheck.com lists no LTE frequencies in common for the F variant on AT&T. I'm so confused.
sm-a320f / sm-a320f/ds
According to every other (not alternating) source the LTE band 2 and band 5 is supported in the US (and the entire spectrum of these bands). So, it supports some bands. Check if the signal of those bands (for your mobile network operator) are available in your location. Ask again, specifically for band 2 LTE(4G).