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If you loose your 3g after flashing a rom or sbf, try to flash one of those zip to see if you get your 3g back (based on the wcdma(3g) freq your operator work on).
(Edit: in the previous sentence, "operator" was meant for the "original operator" of your phone. So in other words, select what matches your hardware, not your carrier. If you still have the original box, theres a label with the freqs on it.)
freq_F_CN_026-850-2100-signed.zip: 850, 2100MHz (ref)
freq_F_PL_342_131-900-2100-signed.zip: 900, 2100MHz
freq_F_UK_342_117-900-2100-signed.zip: 900, 2100MHz
freq_F_US_342_107-850-1700-2100-signed.zip: 850, 1700, 2100MHz
I've repacked as zip the files that seem to be resposible to gsm/WCDMA frequencies support on the Defy from several dumps (China, Poland, UK, US, all Froyo based). I'm not 100% sure though that it will work, but if it can help.
PLease report your success/failure here
Here is also another zip that is known to bring 3g back to Argentina users on Personal (Thanks gederico):
Fix_3g_850.1900Mhz-signed.zip: 850, 1900MHz
India & South East Asia Defy: http://www.mediafire.com/?k8dsbbq0ceodv86
Vodafone Spain (from Eclair rom, but seem to work for Froyo too): freq_E_ES_VF2.22.0-850-1700-2100-signed.zip
This will greatly improve flexibility to moving between roms for US users. Thanks adlx
Does use the customer recovery to flash, or via moto recovery?
Has anyone been able confirm that all these different variants of the Defy actually do have different hardware radios as well? Or are they all the same hardware with soft-controlled bands?
Example: If someone lives in an area where AT&T's coverage is 1900 MHz only and no 850 MHz, you shouldn't get 3G on a T-Mobile 850/1700/2100 Defy. What if you flash the 850/1900 3G files - do you get 3G now?
Do different country variants have a different FCC ID inside?
thanks.
ps. are you sure about cn850/2100?
china has cdma800, gsm900 and wcdma2100, so would make more sense to have 2100-only or 900/2100 since wcdma850 would never happen.
Mobile phones can have their 3G antennas optimized for certain frequencies. They can all work on all existing UMTS frequencies but it does suggest that different areas means different radios. Now that still doesn't mean that the radios themselves are different of course but at least it is something to look into.
cmstlist said:
Has anyone been able confirm that all these different variants of the Defy actually do have different hardware radios as well? Or are they all the same hardware with soft-controlled bands?
Example: If someone lives in an area where AT&T's coverage is 1900 MHz only and no 850 MHz, you shouldn't get 3G on a T-Mobile 850/1700/2100 Defy. What if you flash the 850/1900 3G files - do you get 3G now?
Do different country variants have a different FCC ID inside?
Click to expand...
Click to collapse
i can assure you that 3g radio must be different. unless it has a quad/quint-band 3g amplifier, which doesn't exist yet. intalling multiple amps while not using all of them sounds really stupid to me
AgentSmith said:
Mobile phones can have their 3G antennas optimized for certain frequencies. They can all work on all existing UMTS frequencies but it does suggest that different areas means different radios. Now that still doesn't mean that the radios themselves are different of course but at least it is something to look into.
Click to expand...
Click to collapse
the baseband chip should be the same just the rf part is different.
lackyking said:
Does use the customer recovery to flash, or via moto recovery?
Click to expand...
Click to collapse
You need to use Custom recovery
I wish I could forge Motorola signature ;-D
racca said:
ps. are you sure about cn850/2100?
china has cdma800, gsm900 and wcdma2100, so would make more sense to have 2100-only or 900/2100 since wcdma850 would never happen.
Click to expand...
Click to collapse
I'm not 100% sure. I looked for the information yesterday on Motorola's site, specs for Defy in the respective countries. Today I can't get to the ME525 spec page on Motorola.com(chinese). So I can't confirm.
EDIT: just found it:
频率 WCDMA: 850/2100 HSDPA 7.2 Mbps; GSM: 850/900/1800/1900 GPRS; Edge Class 12
source: http://www.motorola.com/Consumers/C...ervices/Mobile-Phones/ci.MOTO-ME525-CN-ZH.alt
adlx.xda said:
Here is also another zip that is known to bring 3g back to Argentina users on Personal (Thanks gederico):
Fix_3g_850.1900Mhz-signed.zip: 850, 1900MHz
Click to expand...
Click to collapse
Awesome! I now have a working Defy in the Movistar Argentina 3g/H network!
Even though out of the box, the unlocked Defy made in argentina did not work with Movistar Argentina, Froyo + this fix did work. Very weird bug.. but very cool fix!
NOW I'm happy about my defy!
U.S. T-mobile on 2.21 Chinese Retail Firmware, confirmed the 3G works with the patch!!!! tks
adlx.xda said:
...
freq_F_CN_026-850-2100-signed.zip: 850, 2100MHz (ref)
freq_F_PL_342_131-900-2100-signed.zip: 900, 2100MHz
freq_F_UK_342_117-900-2100-signed.zip: 900, 2100MHz
freq_F_US_342_107-850-1700-2100-signed.zip: 850, 1700, 2100MHz
Fix_3g_850.1900Mhz-signed.zip: 850, 1900MHz
Click to expand...
Click to collapse
Hey that sounds great and this was the last thing keeping me from upgrading to Froyo. I'm on Australian Telstra network (850) so are you saying I can use either of the US/CN or that last one...do you know which the Au Telstra network is based on or it doesn't matter?
Will wait to hear and then give it a try and report back...
adlx.xda said:
freq_F_PL_342_131-900-2100-signed.zip: 900, 2100MHz
freq_F_UK_342_117-900-2100-signed.zip: 900, 2100MHz
Click to expand...
Click to collapse
What are the differences between these two?
THX IN ADVANCE.
Hello I live in New Zealand and we have a network here called Telecom XT which uses 3G freq: 850 & 2100 mhz.
Unfortunately all Motorola Defy sold here have their freq specified as: 3G Network: HSDPA 900 / 2100
Does this mean that I can flash the "freq_F_CN_026-850-2100-signed.zip: 850, 2100MHz (ref)" file from OP to the 900/2100 phone and the phone will operate 3G on the 850/2100 freq?
Aittle off topic here but, the vibrant has AT&T 3g and T-Mobile 3g built in. You just have to activate the AT&T 3g radio through the secret settings.
Sent from my SGH-T959 using XDA App
Mentioned this already in the Adlxmod F4D thread but I needed the 3G fix to enable reception of 2G GSM 900 MHz on my Chinese/Asian made Defy. It only detected 1800 MHz networks. I used the Chinese 850/2100 fix for this. The UK 900/2100 fix had no result which means I will probably never be able to receive UMTS on 900 MHz with this phone. Not such a big deal though because as far as I know that frequency is quite rare if used at all somewhere for 3G connections. 2G works fine now but we better rename this thread to 2G/3G fix. Not sure about other 2G frequencies though. Isn't the Defy a quad band?
Excellent...today just flashed Froyo UK version and this fix worked a treat.
adlx.xda said:
If you loose your 3g after flashing a rom or sbf, try to flash one of those zip to see if you get your 3g back (based on the wcdma(3g) freq your operator work on).
freq_F_US_342_107-850-1700-2100-signed.zip: 850, 1700, 2100MHz
...
PLease report your success/failure here :-D
Click to expand...
Click to collapse
Success with the US 850/1700/2100 for my Australian Telstra (850Mhz) DEFY.
BTW, how is this different from *#*#4636#*#*?
adlx.xda said:
If you loose your 3g after flashing a rom or sbf, try to flash one of those zip to see if you get your 3g back (based on the wcdma(3g) freq your operator work on).
freq_F_CN_026-850-2100-signed.zip: 850, 2100MHz (ref)
freq_F_PL_342_131-900-2100-signed.zip: 900, 2100MHz
freq_F_UK_342_117-900-2100-signed.zip: 900, 2100MHz
freq_F_US_342_107-850-1700-2100-signed.zip: 850, 1700, 2100MHz
I've repacked as zip the files that seem to be resposible to gsm/WCDMA frequencies support on the Defy from several dumps (China, Poland, UK, US, all Froyo based). I'm not 100% sure though that it will work, but if it can help.
PLease report your success/failure here :-D
Here is also another zip that is known to bring 3g back to Argentina users on Personal (Thanks gederico):
Fix_3g_850.1900Mhz-signed.zip: 850, 1900MHz
Click to expand...
Click to collapse
noob question.. how do i install this? all i see is meta-inf and system folder
I want to buy this device but it is overpriced here in the uk and t mobile in the usa have it a affordable price. I checked the bands and most uk phones have: 900, 1900 and 2100 for 3g
This one has : 1700 and 2100 for 3g
This concerns me a lot. Can I flash a radio from the original optimistic 2x or something to make it work in the uk? Do you think it will work on 3g out of the box? Some help please.
As you've noted T-Mobile uses non standard frequencies in the states. So, out of the box it's incompatible. As far as flashing an Optimus 2x radio, that appears to be a very bad idea due to file system differences.
Someone correct me if I'm wrong, but from what I've read the answer is no.
According to this:
http://www.wireless.att.com/travelguide/coverage/coverage_details.jsp?CIDL=1305&MNC=CING
uk carriers use 2100 primarily and according to gsmarena the bands this phone supports are:
1700 and 2100 for 3g
Wouldn't it still work out of the box even if it supports 2100 band?
Sent from my GT-I9000 using XDA Premium App
Also according to this:
http://www.mobileworldlive.com/maps...ma/gb/17016/comb/&layer_id=951&lstCountry=275
Most uk networks use 2100 band as suggested by at&t . The 1700 band is used by t mo for 4g network according to engadget. Any change of opinion now?
Sent from my GT-I9000 using XDA Premium App
"Band I" is 2100 MHz, which is supported by the G2x and is used all over Europe and Asia.
and according to this http://www.phonearena.com/phones/T-Mobile-G2x_id5272
the G2X supports 2100 UMTS (3G) or am I missing something?
The G2x supports 850/900/1800/1900 MHz for 2G/GPRS only, and supports 3G/4G UMTS/HSPA+ bands I (2100) and IV (1700). The G2x does not support AT&T’s 3G bands.
G2X spec sheet
http://stadium.weblogsinc.com/engadget/files/T-Mobile_G2x_with_Google_FactSheet_FINAL.pdf
Yes it should work, I'm currently in Europe and my g2x connects to 3G, but of course there is no 4G...I'll be in the UK in a few days in fact
rashad1 said:
Yes it should work, I'm currently in Europe and my g2x connects to 3G, but of course there is no 4G...I'll be in the UK in a few days in fact
Click to expand...
Click to collapse
Thanks for confirming
Sent from my GT-I9000 using XDA Premium App
Thanks to all who corrected me...I was under the impression most of Europe used the same 3G bands as AT&T do here. Stupid US centric assumption...I need to get out more....and keep my mouth shut when I'm not absolutely sure!
Anyway, sorry for my small contribution to internet misinformation...
bdkinney said:
Thanks to all who corrected me...I was under the impression most of Europe used the same 3G bands as AT&T do here. Stupid US centric assumption...I need to get out more....and keep my mouth shut when I'm not absolutely sure!
Anyway, sorry for my small contribution to internet misinformation...
Click to expand...
Click to collapse
Both at&t and tmobile phones would be able to get 3g signals outside of the states. I had no problem using my old iphone 3g in Hong Kong,Beijing nor my tmobile blackberry 9700 in Italy.
jdaclutch said:
Both at&t and tmobile phones would be able to get 3g signals outside of the states. I had no problem using my old iphone 3g in Hong Kong,Beijing nor my tmobile blackberry 9700 in Italy.
Click to expand...
Click to collapse
Yeah...now that's not quite right. Here's the deal:
Most of the world uses 2100 MHz 3G bidirectionally (for both sending and receiving data). This includes England, China, and Hong Kong.
In the U.S. AT&T uses Both 850 & 1900 MHz (depending on the coverage area) bidirectionally. Not compatible with "world standards". The reason you could use you iphone in China is because it has tri-band 3G. Not all AT&T phones support the 2100 MHz band.
T-Mobile uses 1700 MHz for uploads and 2100 MHz for downloading. However, all their current phones have the ability to use the 2100 MHz band bidirectionally when operating overseas.
So to sum it up T-Mobile phones will do 3G overseas, some AT&T Phones will work overseas, but most phones from overseas won't do 3G here.
I hope that makes things a bit more clear; and I apologize again for confusing T-mobile with AT&T in my earlier post.
Infuse 4G never sold in Malaysia and Thailand officially...
Works well in Malaysia but 3G is not working in Thailand.
Anybody knows the solution ?
Should flash specific Modem ???
Thanks, guys...
1. What 3G bands are present there on the network you are on?
2. Are any of those bands present in Infuse?
Even within US, T-Mobile SIM in Infuse won't give 3G 'cos of bands incompatibility.
ic...
Will check and report here again,
Thanks, Dud...
Hello pal,
Infuse only support 3G - HSDPA 850 / 1900 / 2100 but Thailand Providers (AIS, DTAC .. and others, I am not sure..) only support 3G / HSDPA 900 / 1900 / 2100..
So I think no matter what Modem you flash on Infuse, cannot use 3G in Thailand.., I think.
I also found out something weird is,
Almost every Samsung phones support HSDPA 850 /900 / 1900 / 2100 EXCEPT INFUSE 4G.
So this is because of bands incompatibility as diablo009 said...
Thailand Providers Truemove and DTAC support 3G band 850 MHz
( 3G UMTS/WCDMA , 3.75G HSPA(hsdpa)/HSPA+ )
Modem UCKL2 works fine.
Hi Everybody.
I am currently running simcard modded photon q with Wcdma preferred set under testing-> phone info (*#*#4636#*#*) in germany with gsm/umts/hsdpa provided by o2. I wonder which setting under phone info causes what. Playing around with those settings I experienced different cases. Sometimes I only got gprs (G in statusbar) Sometimes I got no Signal at all or only 3g and no gprs.
On some Settings I got no signal at all.
What I would like to sort out is: what are those settings for, and which one is to prefere in gsm/umts based networks?
Also I experienced different Signal strength between those settings.
All in all I have the feeling the signal strength is weaker then with my old motorola milestone especially in buildings or cars/ busses.
So I want to make sure I've set up all correctly.
The again
Gesendet von meinem XT897 mit Tapatalk 2
WCDMA is on bands 850 / 1900 / 2100 (not on 900!). GSM is quadband, and there is no EDGE.
AW: Phone Information Wcdma, Cdma, gsm, EvDo
Skrilax_CZ said:
(...) GSM is quadband, and there is no EDGE.
Click to expand...
Click to collapse
What does that mean? If set to gum auto pre I won"t have edge, or dose it mean photon q is unable to use edge? So GSM contains all wcdma frequencies plus one additional?
Gesendet von meinem XT897 mit Tapatalk 2
GSM is quadband = bands: 850 / 900 / 1800 / 1900. And the phone doesn't support EDGE, just 2.5G.
Okay thanks for this info already.
So to sort things out GSM auto (PRL) is the way to go here in Germany. Now what is the difference between GSM only and GSM auto (PRL)
GSM only is no 3G. GSM auto is both GSM / UMTS.
After further investigation and considering:
http://de.wikipedia.org/wiki/Universal_Mobile_Telecommunications_System#Situation_in_Deutschland
and
http://de.wikipedia.org/wiki/Global_System_for_Mobile_Communications#Situation_in_Deutschland
I would either lack the 900 band with WCDMA on GSM
or the 2100 band on UMTS.
Or am I reading those frequencytables wrong?
You're absolutely fine with the bands. 2100 for 3G (WCDMA or UMTS-FDD), and 900/1800 for 2.5G.
Skrilax_CZ said:
You're absolutely fine with the bands. 2100 for 3G (WCDMA or UMTS-FDD), and 900/1800 for 2.5G.
Click to expand...
Click to collapse
Okay Thanks for the explanation and info.
Just to make this noob safe:
Using GSM auto (PRL) is the right choice for O2 in Germany?!
Yes.
So i just bought a LG G PRO 2 checked it everything seemed to work fine
But then i realized the network connection drops every few mins and reconnects only to a G signal (2G)
so upon further investigation i discover that the band frequency on this model is CDMA eg. USA + Canada
To say im P*&^ed off is an understatement clearly the person who sold me this is aware and is now ignoring any contact i try to make with him
I have contacted LG to see if i can possible purchase a motherboard for model D837 or D838 as i see this is my only option to get the device working
Unless anyone here can advise otherwise
Once i go into the band selection screen and disable CDMA bands it seems to sustain a stable connection but only to a 2G network haven't been into a 4G area as of yet to test but it is completely incapable of connection to a 3G frequency within the uk which i will be connected to 80% of the time
not 100% with the F350 but the frequencies for it should be:
2G: GSM 850 / 900 / 1800 / 1900 MHz
3G: UMTS 2100 MHz
4G: LTE 850 / 1800 MHz
2G is fine, as UK uses 900/1800.
3G: all UK networks at 2100.
4G: only EE/3 use the 1800MHz frequency. no-one uses 850 in UK.
look around the forum for the secret menu and see if you need to enable 3G/4G manually. or do a manual firmware update.
,My Wife has an F320S (G2)and she can enable all Bands in the Hidden Menu and works fine in Europe in Austria.Network Operator is Three (HG3).
I think the F350S is the same.
Go to Dialer and tipe 5457#*350#
in Modem Settings can you aktivate all Bands what you need
I hope this works for you.
Thanks for the reply guys
There's loads of settings in the hidden menu
I cant see how changing anything in here will help as it is a CDMA device which means it physically does not have the necessary hardware to connect to a 3G network in the UK
As it uses a totally different technology than UMTS
Ive discovered at WCDMA is actually UMTS so i cant see why it doesn't work ?
manemzjum said:
Ive discovered at WCDMA is actually UMTS so i cant see why it doesn't work ?
Click to expand...
Click to collapse
WCDMA Channel-Full
Band Selection-Automatic
Rat Mode-Automatic
The Phone reboot automatic when use this Settings
letschky said:
WCDMA Channel-Full
Band Selection-Automatic
Rat Mode-Automatic
The Phone reboot automatic when use this Settings
Click to expand...
Click to collapse
Those are the default settings that the device is on so no joy with that thanks anyway
using my EE sim signal drops frequently using my daughters O2 sim it seems to sustain a connection but again only to 2G network
Clearly the problem is the WCDMA bands on the device are 850 / 1900 / 2100 while 2100 is used here 900 is the more widely available and thus incompatible with device
I think my only option is to sell it on but to who its no use to anyone in the UK really
manemzjum said:
I think my only option is to sell it on but to who its no use to anyone in the UK really
Click to expand...
Click to collapse
How much you selling it for?
oohaylima said:
How much you selling it for?
Click to expand...
Click to collapse
Just sold on ebay for £165 but its to someone in brazil with 4 feedback
Just missed it.
It's back up as the winner was obviously a scammer