Related
Hi Tech-Guru's,
I'm having O2 XDAII ROM 1.60.00WWE, Radio 1.08.00. Can I use EDGE (Enhanced Data rates for Global Evolution) with this device? If not, any ROM updates?
Thanks.
M.Muhelen
if you mean edge as in what some people also call 2.5G then no like 3g (UTMS) it would require new hardware inside the xda2
wait for xda3 if you want support for new cellphone systems
EGDE is "2.75G" as I know... GPRS is "2.5G".....
The download speed of EGDE is almost as fast as 3G Network, but based on GSM technoology.
XDA2 doesn't support EGDE now.. and seems not planned to support in future.....
killercheung said:
EGDE is "2.75G" as I know... GPRS is "2.5G".....
The download speed of EGDE is almost as fast as 3G Network, but based on GSM technoology.
XDA2 doesn't support EGDE now.. and seems not planned to support in future.....
Click to expand...
Click to collapse
About as correct an explanation as it gets, spot on mate, yes. EDGE, in effect, would be 2.75G...
GPRS is 2.5G(eneration)
Edge is Enhanced Data Rates for Global Evolution, a kind of development of standard GPRS capable of running almost as fast as current 3G.
But for it to work, the phone must support it hardware wise, and the network too must support it.
well through testing almost all of the roms here in this section i have found out that every rom does have 3g but if you select HSDPA/HSUPA you will lose your 3G connection and can only have it again if you disable HSDPA/HSUPA. This seems very odd because the hermes and kaiser would switch between the two depending on which one had the stronger connection. i welcome others to test this as i think it is interesting and should be looked into.
HackMimic said:
well through testing almost all of the roms here in this section i have found out that every rom does have 3g but if you select HSDPA/HSUPA you will lose your 3G connection and can only have it again if you disable HSDPA/HSUPA. This seems very odd because the hermes and kaiser would switch between the two depending on which one had the stronger connection. i welcome others to test this as i think it is interesting and should be looked into.
Click to expand...
Click to collapse
Hmmm Curious..
I am currently running RomeOS 1.21 and am about to update to 1.51.
mine switches no problem between the two.
If i can't get a HSDPA signal then it auto switches to 3G..
will see if the new rom changes anything.
Dean
let me know because i have been observing and have only seen it auto change from H to E or G whichs sucks when it use to go from H to 3G. travel the entire bay area for my job and both phones side by side with me act different. so wierd.
HackMimic said:
let me know because i have been observing and have only seen it auto change from H to E or G whichs sucks when it use to go from H to 3G. travel the entire bay area for my job and both phones side by side with me act different. so wierd.
Click to expand...
Click to collapse
I Thought H was the same as 3g. Isn't Att's 3G network run on HSDPA?
HackMimic said:
well through testing almost all of the roms here in this section i have found out that every rom does have 3g but if you select HSDPA/HSUPA you will lose your 3G connection and can only have it again if you disable HSDPA/HSUPA. This seems very odd because the hermes and kaiser would switch between the two depending on which one had the stronger connection. i welcome others to test this as i think it is interesting and should be looked into.
Click to expand...
Click to collapse
HSDPA/HSUPS is 3G. If you are referring to WCDMA vs HSPA there would not be a stronger connection for either because they are on the same frequency.
Fact is on the Hermes/Kaiser the HSPA was downstream only (HSDPA) , on the raph its has bi-directional HSPA (HSDPA and HSUPA) therefor the towers you are broadcasting to with the device will have HSPA mode on continuously as apposed to only when you are receiving from them since the device is receiving and transmitting using HSPA.....which is why the HSDPA mode "H" symbol only appeared during data transfer on the older devices, there was normally a short delay (when using the device as a modem for example) before the "H" appeared and the data began coming in.
Notice how you need to reboot if you choose to deactive HSPA alltogether? The radio stack probably needs to start a new session on the network to change from HSPA back to UMTS only. Indeed when you set standard 3G mode you should get the "3G" symbol rather than "H".
The service rep at ATT told me the other day that HSDPA is actually different then 3G. THe HSDPA is typically meant for the Laptop Connect cards. Since the inception of the iPhone on 3G if you haven't noticed your speeds have dropped significantly.
How true is this I don't know...but when I am using a ROM like RRE that has HSDPA my speeds are much faster then with 3G.
ryncppr said:
The service rep at ATT told me the other day that HSDPA is actually different then 3G. THe HSDPA is typically meant for the Laptop Connect cards. Since the inception of the iPhone on 3G if you haven't noticed your speeds have dropped significantly.
How true is this I don't know...but when I am using a ROM like RRE that has HSDPA my speeds are much faster then with 3G.
Click to expand...
Click to collapse
HSPA (3.5G) is just another coding method, it still uses the 3G frequencies as with UMTS (aka normal 3G). The theoretical bandwidth due to the more complex an efficient coding method means you can get ALOT more bandwidth down the same frequency than with UMTS. So technically UMTS and HSPA can both be encompassed into the "3G" terminology although they use different coding techniques, the video calling and voice stuff are handled identically afaik, data transmission is where they differ.
This kind of improvement can be seen in the 2G technologies with GSM/GPRS/EDGE.
HSDPA is a "higher speed" data connection than 3G... but its still a "3G" frequency data connection. So on-the-face-of-it, they are one and same, just one is faster than the other.
thank you so much. i am a very visual and analytical person. love to compare behavour. glad i got a real answer about this as i have been reading for days on this and it seems kind of cloudy with the fuze on information. thank you again for the replys.
Wow, there's quite a bit of information, some conflicting, about the various 3G-related terminologies here. So I might as well add my take on it all
Let's compare 2G terminologies to 3G ones, as that should make it easier for some to understand.
GSM - the very basic 2G standard
UMTS - the very basic 3G standard
GPRS - upgraded GSM to packet switching - faster data access - dubbed 2.5G
HSDPA - upgraded UMTS to faster downlink speeds - dubbed 3.5G
EDGE - upgraded GPRS to faster data access - dubbed 2.75G
HSUPA - upgraded UMTS to faster uplink speeds - dubbed 3.75G (occasionally)
Finally, HSPA is simply a term encompassing HSDPA and HSUPA.
I hope this helps more than it hurts
Trancecoder said:
GSM - the very basic 2G standard
UMTS - the very basic 3G standard
GPRS - upgraded GSM to packet switching - faster data access - dubbed 2.5G
HSDPA - upgraded UMTS to faster downlink speeds - dubbed 3.5G
EDGE - upgraded GPRS to faster data access - dubbed 2.75G
HSUPA - upgraded UMTS to faster uplink speeds - dubbed 3.75G (occasionally)
Click to expand...
Click to collapse
There i fixed it for you
shotta35 said:
There i fixed it for you
Click to expand...
Click to collapse
WCDMA is the air interface for UMTS as
TDMA is the air interface for GSM.
At the same time, GSM is used to describe a phone system that uses GSM/TDMA and UMTS/WCDMA versus the CDMA phone system used by Sprint/Verizon/Qualcomm.
Confused yet?
NuShrike said:
WCDMA is the air interface for UMTS as
TDMA is the air interface for GSM.
At the same time, GSM is used to describe a phone system that uses GSM/TDMA and UMTS/WCDMA versus the CDMA phone system used by Sprint/Verizon/Qualcomm.
Confused yet?
Click to expand...
Click to collapse
PLEAAAASEEE can we go into how OFDM and QPSK work?? i want to see some heads explode...scanners style.
NuShrike said:
WCDMA is the air interface for UMTS as
TDMA is the air interface for GSM.
At the same time, GSM is used to describe a phone system that uses GSM/TDMA and UMTS/WCDMA versus the CDMA phone system used by Sprint/Verizon/Qualcomm.
Confused yet?
Click to expand...
Click to collapse
LOL, newbs reading this will and should be confused. I only edited it to make his comparisons between GSM and UMTS which is should be, not GSM and WCDMA which aren't in the same "group"
shotta35 said:
LOL, newbs reading this will and should be confused. I only edited it to make his comparisons between GSM and UMTS which is should be, not GSM and WCDMA which aren't in the same "group"
Click to expand...
Click to collapse
*head explode*
what are decent speeds for HSPA connections?
shotta35 said:
There i fixed it for you
Click to expand...
Click to collapse
Thanks. I really shouldn't post anything when it's late, especially when my head feels twice its size due to a particularly annoying cold
NuShrike and Mr. Vanx has explained it.
These jargons always confusing for us, laymans. Easiest term is i think CDMA (2000,1X, EVDO) is used almost exclusively in US, while GSM and WCDMA (UMTS) is in almost everywhere else of the world (around 3.5 billon users as of now - open www.gsmworld.com). Except Japan, they have their own customized system.
Reasons of difference? Matter of choice, more like when you decide using VHS instead of BetaMax. I think part of the reason why US choose CDMA instead of GSM you may ask Qualcomm's technical people, as they hold majority of the copyrights and licenses in CDMA technology. Not only in driverless chipsets... LoL.
Actually, we in Indonesia also adopt CDMA in smaller and narrower market. But the gov limit them to be Fixed Wireless. Now, what does the jargon: Fixed Wireless means?? Another head exploded... LoL =D
3G icon shows when the phone's sitting idle, H shows when data's being transferred.
My phone shows H all the time now because this market has moved on from UMTS + HSPDA to a HSPA market now. This is ONLY as a result of using the non-AT&T ROM, if you use that it will say 3G because AT&T has disabled it (the icon, not speeds) to cause less confusion.
As for what's typical HSPA speeds? Well on the AT&T network i've seen as high as 2Mbps (on a 3.6Mbps HSPA network) but there are places in Europe that are deploying 7.2Mbps and in Australia they are launching 21Mbps!!!
Hi, Just purchased the hd2 T Mobile from USA. Which carriers can I use in Canada to activate this Phone? Thanks in advance for any help you can provide.
any of them(well, except any cdma only ones) but you will need an unlock code from online or from t mobile, and you won't get 3g
Thanks for the help samsamuel. I took it to one carrier and they told me it wouldn't work. The phone is unlocked.Why wouldn't I get the 3G.I want the plan that gives me internet mobile browsing. PS it was fido I took it to.
because fido uses 1900 for 3g, from what i've read, and the tmous uses 1700/2100 for 3g., and i think rogers uses 850/1900 and maybe 1900/2100 (just skimming google for this infofact is, though, that without the 1700 aws band,, no high speed data.
you will be able to get gprs and edge for browsing, but no 3g/hsdpa.
as to them saying it won't work, they're probably either making it up or meaning 3g
most canadian users fork out the extra for the telstra model if they want 3g.
Thanks. I guess this phone is useless to me, as I wanted to be able to access the internet without using the wifi.
Redder1 said:
as I wanted to be able to access the internet
Click to expand...
Click to collapse
you can, but only with gprs / edge speeds.
I had been considering buying an HD2 and trying to unlock it for use with an AT&T sim card for my current account. I knew that their networks were compatible, but I didn't realize that hsdpa was on different frequencies. I googled around a bit and it looks like AT&T uses 1900 mhz and Tmo uses 1700/2100. I can't verify if this info is correct ,but this could sure put a dent in my plans. Does anyone know for sure if an HD2 can be used on AT&T's 3g network?
there are several threads about how you can't. go read in the tmous specific section. plenty of confirmation that it doesn't.
3G Frequencies
Hi there!
I was wondering if there is a way to change those settings?? I have a T-Mo HD2, and maybe there is a way to make the phone work with the 3G technology in other frequencies besides the 1700 and 2100 MHz (I live in latin america, so it would have to use the 850Mhz frequency) Anyone please help me with this issue.
As one who unlocked a TMoUS HD2 to AT&T I can assure you that you will not get 3G anywhere in the US or Canada that I can find. On a bright note, it's a phone... With everyone else using 3G networks I find the Edge network to be utterly "unclogged" and find the speeds to be just fine for everything including streaming video.
PS: The phone was free but without a SIM card and I was an AT&T user - not to mention T-Mobile's network leaves a lot to be desired..
There is 3g service in Canada if you happen to be in an area where Wind Mobile is available. search Wind mobile coverage area.
We (family)have several cell phones I use the HD 2 on Edge and it doesn't bother me that its a little slower, actually when I did a quick check with my daughter on her 3g I hardly could tell the difference. I' m sure some will point out where I'm wrong. But I'm satisfied with edge because I enjoy the HD2.
Wind Mobile uses 1700/2100.
Hi everyone,
I apologize in advance for the possibly n00b question. I am in Italy now with a T-Mobile USA G2 that I unlocked with GFree 0.5/adb/everything yesterday. I put in my TIM (Telecom Italia) SIM card and it finds the TIM network and connects me to normal phone service, but simply does not connect to 3G. Does anyone have any ideas? I'm assuming the G2 is capable of overseas data connectivity because T-Mobile advertised it as a "quad-band" phone -- am I wrong? Do I need to install a custom ROM to have international 3G?
Yeah, I think you are screwed. According to the t-mobile site here your quad band phone has the following freq specs:
850 MHz;900 MHz;1800 MHz;1900 MHz;UMTS: Band IV (1700/2100)
The band IV is the t-mobile 3G band in the states that uses 1700Mhz uplink and 2100 downlink (also known as AWS). Unfortunately for you Italy uses the typical European freqs of 1900Mhz uplink and 2100 downlink. And no you can't just use the downlink!
On the bright side, EDGE should work.
Thank you very much. I think you are correct: it's shameful and pathetic that T-Mobile advertises the G2 as an "international" phone and then provides a phone with support only for a single UMTS data band (unlike the iPhone 4, for example, which has support for 900 MHz UMTS/HSDPA).
As per the suggestion that EDGE should work, that does not appear either. All that appears is the "cellular" network icon -- a.k.a., the one immediately to the right of the battery. There is no "E" data connection either as there would be in the U.S. when I am out of 3G range. Is that normal? Is EDGE simply the normal cellular network?
I feel your pain, having traveled internationally a lot
No, when you are connected to GPRS you should get a "G" symbol near the signal bars and when you are connected to EDGE there should be an "E." If you are not getting that then a couple of suggestions:
1) You have switched on the data connectivity on your phone, right!!? (duhh)
2) Did you buy this SIM card new? There are older SIM cards where I had a problem getting the data connectivity, though that should not be a real problem.
3) Did your phone get the right APN settings from the SIM? In most cases for TIM I think you want ibox.tim.it and you *might* have to set in manually
4) Is this a prepaid SIM and do you have a balance? The network will probably reject the connection if you have 0 balance
5) If you don't have a plan (even prepaid), your balance will go down VERY quickly. In fact, your phone may have actually connected when you were not looking, and run your balance to 0 just by syncing.
The best deal for TIM data packages are listed here. I use them all the time, however if you are in the big cities WIND is pretty good and MUCH cheaper.
Hope that helps
Hi all,
I'm in the UK and on the EE network using their 4G, and the Speed 7 downloads stuff really fast when I'm out and about. 4G when it works is really amazing... sitting on a train watching read time HD video streaming without caching is definitely miles better than 3G and to me is a strong selling point of this phone.
However, EE in the UK do charge a lot for data so I have been experimenting with other providers. I now have Three, O2, and Vodaphone PAYG SIMs. None of them have any credit on them but that should be enough to check signal... and where I am at the moment, it is not too impressive, I'm not getting 4G reception from any of them except EE - the rest are giving me 3G. I do realise that with this phone, only your chosen data SIM will get 4G, and the one in the other SIM slot will only do GSM, so I did make sure that data was turned on in the right SIM if I was using two and turned on mobile data etc.
In theory, the speed seven should be perfect for the UK, it has Band 20, Band 7 and Band 3 which should cover all of these providers. Although there are radio utilities out there that are good on signal strength, I haven't found one that tells me what Band I am actually using on 4G. (so if you know...)
So, no matter where you are in the world, I'm interested to know what you're connecting to... what 4G provider do you use, and more importantly, what bands are they on? This would be for the 'International' version of this phone which has the B20/B7/B3 radio. My phone actually reports it is enabled for 4G B1, B2, B3, B4, B7, B17 and B20 but I think that may reflect the different radio modules that can be installed, not the real hardware situation.
thanks in advance!!
Hello,
I am waiting my speed 7, it will be deliver in the next days. But if you want to know what frequency you use, try to disable 2 of 3 bands in engineer setting.
I am from France, we have also the 3 bands Band 20, Band 7 and Band 3 used by french operator, with the 2600 mhz.
I hope, I will give you a feedback at the end of the week.
Kind regards.
Salut! The problem is half the providers in the UK sell 4G as a 'premium' service, so it appears unless I activate some of the SIMs (for a pile of money) then I won't be able to validate the specific 4G service they communicate in 3G first and then switch only for selected customers... who have paid.
I recently loaded up the 'Three' SIM with some credit(Hutchinson telecom - maybe it would be under that brand in France) and their 4G service seems to be fine as well. Maybe not as good as EE for coverage or speed, but certainly not too bad. 'Three' use Band 20 and Band 3 and EE use Band 7 as well, so that's not very conclusive... yet! I have also been running the phone in dual SIM mode, using both at once, and it works perfectly. You have to choose which SIM to use for each service, and it will (as any Chinese phone) be unable to run 4G at once on both, so you have to choose one of them for calls, one for data, and one for texts. That does not stop you getting incoming calls,texts etc on both lines etc (just sets the default for outgoing) It is a real novelty having that... and two signal strength meters!
I like your idea of turning off the bands in engineer mode, it is not obvious to me where to do that, so if you can point me in the right direction that would be great... I'm using the engineering mode tool...
PS I hope you like the phone! Now that the software is mostly fixed, I like it a lot, you need the latest OTA update to make it usable, so do run the wireless update wizard! Maybe not top quality hardware, but much cheaper, and has a good screen, good speed, big battery and 3Gb memory ... and of course the dual SIM! (Camera, GPS are a bit suspect)...
This might help:
http://www.att.com/travelguide/coverage/coverage_details.jsp?CIDL=1308&MNC=CING
http://www.sensorly.com/map/4G/GB/Great_Britain/O2/lte_23410#|coverage
Thanks... Bit out of date. The thing I am interested in knowing is how much truth is there in what the phone claims to do versus what it actually does
Sent from my ZP952 using XDA Free mobile app
Hello,
just a late feedback, but i have reached with speed test 65mb dl, 25 ul, in 4G , at frequency 2600 mhz , very well indeed.