Hello,
If my phone supports 2G's GSM 900 isn't it supposed to support also 3G's WCDMA 900 ?
yoelian said:
Hello,
If my phone supports 2G's GSM 900 isn't it supposed to support also 3G's WCDMA 900 ?
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Maybe, maybe not. You didn't say what device you have or what network your device is activated on, that can make a difference.
Sent from my LGL84VL using Tapatalk
Droidriven said:
Maybe, maybe not. You didn't say what device you have or what network your device is activated on, that can make a difference.
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You're right, it's a LG (AT&T) Phoenix 2 K371 and from what i've read at Qualcomm's site i think i understood that it's modem supports it. I mean at least the antenna for the 900MHz is the same for GSM and WCDMA?
Thanks
Related
Wats up with gsm 850 ? Is it like diamond or it is true quad band?
alexor said:
Wats up with gsm 850 ? Is it like diamond or it is true quad band?
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It has 850 but will not use the US 3G networks (set for ASIA/EUROPE) unless you get a US version (not out yet). So it's quad without 3G (you do get EDGE though)
so
so its quadband gsm and dual band hsdpa for euro/asia?
I think it does GSM850 but not UMTS850. Is this correct? Now, my question, is UTMS only used for data and GSM is used for voice? My immediate answer to this would be no, UTMS (W-CDMA) is used for both.
Yarr.. is this a hardware thing or a software thing?
Software
briggs81 said:
Yarr.. is this a hardware thing or a software thing?
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Click to collapse
I think Software - I saw a registry edit in the tweak thread. need to go find it again
850 adding 850 GSM is a software tweak, adding the UMTS bands for the US is not (it lacks the hardware)
I really dont think they would have released this without the hardware. My gut tells me the US 3G will see the light of day...
Raspster said:
I really dont think they would have released this without the hardware. My gut tells me the US 3G will see the light of day...
Click to expand...
Click to collapse
I've been praying daily for this since I got my TP on Tuesday... And I'm not a very religious person...
Is there a way to detect what 3G band the phone is currently using?
I want to ensure that a 9020A device actually picks up the 850 band.
On S1 and Captivate devices you can dial *#0011# and there is a status screen with the 3G band currently in use.
Wonder if Nexus phones have such a trick.
Nobody has any clue ?
Only way I know is look under the battery and the label should say "9020a" or "i9020a” for the model . If the "a" is missing 850 Band is missing.
Don't know of a keycode combination.
Sent from my Nexus S
kalda01 said:
Is there a way to detect what 3G band the phone is currently using?
I want to ensure that a 9020A device actually picks up the 850 band.
On S1 and Captivate devices you can dial *#0011# and there is a status screen with the 3G band currently in use.
Wonder if Nexus phones have such a trick.
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Click to collapse
alphahere said:
Only way I know is look under the battery and the label should say "9020a" or "i9020a” for the model . If the "a" is missing 850 Band is missing.
Don't know of a keycode combination.
Sent from my Nexus S
Click to expand...
Click to collapse
Or your manual that comes with the box.
My Korean Nexus S, supports ATT, 850/1900 bands.
the O1 has 900 / 2100 3G band stock.. is it possible in any shape or form to add a band to it? for example the 850mhz band?? can any developer take a look into this? im already assuming its hardware related but for the many transformations the O1 has gone through im not ruling it out as impossible just yet.. please have a look into it thanks..
r3al_0g said:
the O1 has 900 / 2100 3G band stock.. is it possible in any shape or form to add a band to it? for example the 850mhz band?? can any developer take a look into this? im already assuming its hardware related but for the many transformations the O1 has gone through im not ruling it out as impossible just yet.. please have a look into it thanks..
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Well it's impossible, as in totally. These bands are not like porting ICS over and i guess they may need a change in chipsets or whatever.
r3al_0g said:
the O1 has 900 / 2100 3G band stock.. is it possible in any shape or form to add a band to it? for example the 850mhz band?? can any developer take a look into this? im already assuming its hardware related but for the many transformations the O1 has gone through im not ruling it out as impossible just yet.. please have a look into it thanks..
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Click to collapse
2G Network:GSM 850 / 900 / 1800 / 1900
3G Network :HSDPA 900 / 2100
850mhz band is for 2g
U want 2g while u select wcdma only, is it that ?
Why dont u select gsm only if thats the case
Perhaps it ispossible, but you need to flash another radio image for it. Also, your radio must support that frquency.
Sent from my iPad using Tapatalk HD
rishabho1 said:
2G Network:GSM 850 / 900 / 1800 / 1900
3G Network :HSDPA 900 / 2100
850mhz band is for 2g
U want 2g while u select wcdma only, is it that ?
Why dont u select gsm only if thats the case
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im on 2g.. the problem im facing is that the network im on the 3G band is 850 n the O1 doesnt support that band for 3g..
_Arjen_ said:
Perhaps it ispossible, but you need to flash another radio image for it. Also, your radio must support that frquency.
Sent from my iPad using Tapatalk HD
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Click to collapse
thats wat i was thinking.. for example: the old motorola l7 stock was GPRS n with sum modifications was about to use EDGE.. the codes for the OS r different but what seemed impossible in the beginning turned out different after trying..
as Cresqo said, it cud b hardware depended n therefore would be impossible.. i personally have no experiencing where Android OS modding is concerned thats y im asking for advice here where experienced ppl are..
Well, say our phone supports that band (which I guess it does), we need to hack the radio image. I have done it on Nokia phones before, but never looked into it for LG P500.
_Arjen_ said:
Well, say our phone supports that band (which I guess it does), we need to hack the radio image. I have done it on Nokia phones before, but never looked into it for LG P500.
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well at least we know it has been done b4 so its not impossible.. wud u take a look into it on ur time plz.. thanks
I was looking into this not too long ago. See the third post here: http://forum.xda-developers.com/showthread.php?p=26608544
P500 uses WCDMA band 8, which is 880MHz - 915MHz. This is determined by hardware filters unfortunately.
Sent from my LG-P500 using XDA
curious_one said:
I was looking into this not too long ago. See the third post here: http://forum.xda-developers.com/showthread.php?p=26608544
P500 uses WCDMA band 8, which is 880MHz - 915MHz. This is determined by hardware filters unfortunately.
Sent from my LG-P500 using XDA
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thanks for the info.. i guess im stuck using 2g on my beloved O1
yeah, I'm in the same boat
Sent from my LG-P500 using XDA
i saw the at&t version of the P500 on the same network im on with 3G
i dnt think its impossible.. (i got mine from t-mobile)
Purchased a Jiayu g2 to play with so far the phone is very nice. It is suppose to work with 850/900/1900/2100mhz wcdma however I cannot get it to work on 3g with att I only get edge and have tried just about every apn setting I can. Does anyone else in the US have this phone working on 3g? I have it rooted. Funny never thought I would say this but it is a very nice phone.
eaa628 said:
Purchased a Jiayu g2 to play with so far the phone is very nice. It is suppose to work with 850/900/1900/2100mhz wcdma however I cannot get it to work on 3g with att I only get edge and have tried just about every apn setting I can. Does anyone else in the US have this phone working on 3g? I have it rooted. Funny never thought I would say this but it is a very nice phone.
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Click to collapse
A lot of these Chinese phones state they're quadband GSM, but only have 2100 for 3G. Correct me if I am wrong.
Also, do you accidentally have GSM Only set?
Sent from my iPad using Tapatalk HD
KayxGee1 said:
A lot of these Chinese phones state they're quadband GSM, but only have 2100 for 3G. Correct me if I am wrong.
Also, do you accidentally have GSM Only set?
Sent from my iPad using Tapatalk HD
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Click to collapse
here is the link for google translate.
http://translate.google.com/translate?hl=en&sl=zh-CN&tl=en&u=http://www.ejiayu.com/Product-5.html
this is the manufactures website and in the product parameters tab it shows 850/900/1900/2100 wcdma 3g and even in the engineermode menu it has them listed. i only paid 160 for it but to be honest it is a real nice phone and i was completely shocked at how well it was constructed. i even have it rooted. if there is anyone else out there that has this phone in the US or anywhere i would be interested to find out what bands you are on.
Take a look at the specshere
It shows 2100MHz for 3G
Don't be fooled by Engineering mode. It may show the options for specific MHz, but if the phone doesn't support it then the options pointless and misleading.
Sent from my iPad using Tapatalk HD
KayxGee1 said:
Take a look at the specshere
It shows 2100MHz for 3G
Don't be fooled by Engineering mode. It may show the options for specific MHz, but if the phone doesn't support it then the options pointless and misleading.
Sent from my iPad using Tapatalk HD
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i hear what you are saying. but the fact that the manufacture website shows the bands. i understand that the selling sites are all diff some show 2100 some show 850/2100. but for 160 it was worth a shot.
So no one else in north America has this phone?
Hi,
I have heard that MTK6575 SoC does support 3G on 850MHz/1900MHz. Two things might prevent it from working.
1. Your cellular provider maynot be providing 3G on both 850 and 1900 where you live. It could just be on 1900MHz where you live. Could you go to some other part of the city and test it?
2. I have read that the antennae required for 850/1900MHz is different from 2100MHz. So, even if the SoC supports it, the signal strength is not strong enough to make it work.
I would be very interested in your test results since I am thinking of buying one.
KayxGee1 said:
A lot of these Chinese phones state they're quadband GSM, but only have 2100 for 3G. Correct me if I am wrong.
Also, do you accidentally have GSM Only set?
Sent from my iPad using Tapatalk HD
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Click to collapse
Because China Unicom 3G is @ WCDMA 2100MHz.
Sent from my GT-S5570 using xda premium
eaa628 said:
Purchased a Jiayu g2 to play with so far the phone is very nice. It is suppose to work with 850/900/1900/2100mhz wcdma however I cannot get it to work on 3g with att I only get edge and have tried just about every apn setting I can. Does anyone else in the US have this phone working on 3g? I have it rooted. Funny never thought I would say this but it is a very nice phone.
Click to expand...
Click to collapse
Hi! Did you insert your 3G SIM on the SIM 1 slot? It is the only SIM slot capable of 3G (WCDMA). There are two slots in Jiayu G2 and only SIM 1 will work with 3G. SIM 2 is for GSM only.
toffzter said:
Hi! Did you insert your 3G SIM on the SIM 1 slot? It is the only SIM slot capable of 3G (WCDMA). There are two slots in Jiayu G2 and only SIM 1 will work with 3G. SIM 2 is for GSM only.
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Click to collapse
yes i did. i have even tried to get help from Ejiayu.com and no one replies. the spec on the their website show is is 850/900/1900/2100 mhz wdma and it shows in the engineering menu as well but i think it is a lie i can not get it to work at all in 3g. My sim works fine in my Pantech Burst 4g LTE. i have not given u completely but i need someone who has an in depth knowledge of this phone to help
3g access
eaa628 said:
Purchased a Jiayu g2 to play with so far the phone is very nice. It is suppose to work with 850/900/1900/2100mhz wcdma however I cannot get it to work on 3g with att I only get edge and have tried just about every apn setting I can. Does anyone else in the US have this phone working on 3g? I have it rooted. Funny never thought I would say this but it is a very nice phone.
Click to expand...
Click to collapse
u might try and see what the apn setting is
u might have to input the correct apn for your carrier
Just wanted to give some info I found using QPST(qualcomm software) to see what cell bands are configured for our HTC One M8. I even looked at the Rezound bands as well. As most of you know, verizon didn't carrier lock our phones, so if we switch to global or even GSM network, we can use other carriers GSM SIM cards. Just need to properly configure the APN's of course. Below are the bands that the phone will search for when Global Network is selected. I pulled this configuration from my actual device. The Rezound only was missing Bit 19 & 49 selection, but everything else was selected:
[Bit_00] Band Class 0, A-System
[Bit_01] Band Class 0, B-System
[Bit_02] Band Class 1, all blocks
[Bit_07] GSM DCS 1800 band
[Bit_08] GSM Extended GSM (E-GSM) band
[Bit_09] GSM Primary GSM (P-GSM) band
[Bit_19] GSM 850 band
[Bit_21] GSM PCS 1900 band
[Bit_22] WCDMA Band I - EUROPE JAPAN & CHINA IMT 2100 band
[Bit_23] WCDMA Band II - US PCS 1900 band
[Bit_26] WCDMA Band V - US 850 band
[Bit_49] WCDMA Band VIII - EUROPE & JAPAN 900 band
I'm guessing the reason some of us are having issues on Tmobile is that the AWS bands are missing? Can we enable them somehow?
hyperfire21 said:
I'm guessing the reason some of us are having issues on Tmobile is that the AWS bands are missing? Can we enable them somehow?
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Click to collapse
It could possibly be activated using QPST, but there are other steps to do it. The only issue is that since QPST is the QualComm radio programing, there is potential to lose signal quality or lose all radio functionality. That said, it could also be possible to recover by flashing the original firmware or RUU to recover. I now T-mobile uses 1900 GSM PCS band and AWS 1700 mHZ. There is another program I use to actually enable more bands. The program basically converts the selection of bands to a hexidecimal number to use in QPST software to program the added bands. Again, not sure if the Qualcom chip can use it. There is a WCDMA band selection for Bit (25) IV- US 1700 than could be programed to enable. I used a thread from the Sony Xperia forum to help me use the two programs.
rudyo78427 said:
Just wanted to give some info I found using QPST(qualcomm software) to see what cell bands are configured for our HTC One M8. I even looked at the Rezound bands as well. As most of you know, verizon didn't carrier lock our phones, so if we switch to global or even GSM network, we can use other carriers GSM SIM cards. Just need to properly configure the APN's of course. Below are the bands that the phone will search for when Global Network is selected. I pulled this configuration from my actual device. The Rezound only was missing Bit 19 & 49 selection, but everything else was selected:
[Bit_00] Band Class 0, A-System
[Bit_01] Band Class 0, B-System
[Bit_02] Band Class 1, all blocks
[Bit_07] GSM DCS 1800 band
[Bit_08] GSM Extended GSM (E-GSM) band
[Bit_09] GSM Primary GSM (P-GSM) band
[Bit_19] GSM 850 band
[Bit_21] GSM PCS 1900 band
[Bit_22] WCDMA Band I - EUROPE JAPAN & CHINA IMT 2100 band
[Bit_23] WCDMA Band II - US PCS 1900 band
[Bit_26] WCDMA Band V - US 850 band
[Bit_49] WCDMA Band VIII - EUROPE & JAPAN 900 band
Click to expand...
Click to collapse
I activated all other bands yet i still didn't get LTE, so i assume the restriction is somewhere within the chip perhaps.
band 3
regspy said:
I activated all other bands yet i still didn't get LTE, so i assume the restriction is somewhere within the chip perhaps.
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Click to collapse
hi
did you activate band3? 1800mhz and 2600mhz?
still dont get LTE in europe?
do you have a guide how to enable it?
thanks
boazlaz said:
hi
did you activate band3? 1800mhz and 2600mhz?
still dont get LTE in europe?
do you have a guide how to enable it?
thanks
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Click to collapse
Yes I enabled band 3 and 7 (1800,2600) following the guide posted here
unlock Qualcomm bands
So no euro lte at all yet?
Sent from my HTC6525LVW using XDA Free mobile app
BobbySteel said:
So no euro lte at all yet?
Sent from my HTC6525LVW using XDA Free mobile app
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Nop, if someone can tell me which Rom has the change bands function then can try that as well. But even after opening the bands I'm only able to get H 14.4mbps.
Are you currently in Europe too? I'm dying to get Vodafone lte on this handset. 3g works fine but I haven't tried the qpst route yet.
BobbySteel said:
Are you currently in Europe too? I'm dying to get Vodafone lte on this handset. 3g works fine but I haven't tried the qpst route yet.
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Click to collapse
In UAE but we use the same LTE bands as Europe. You can try the qpst thing on stock Rom or cleanROM
regspy said:
In UAE but we use the same LTE bands as Europe. You can try the qpst thing on stock Rom or cleanROM
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Click to collapse
I have an old phone info app that's the 4636 menu thing. Hadn't tried this before but just tried assigning the bands there. Somehow that just hosed me and now I only get the 1900 band it seems, so phone is radio-less for me now
BobbySteel said:
I have an old phone info app that's the 4636 menu thing. Hadn't tried this before but just tried assigning the bands there. Somehow that just hosed me and now I only get the 1900 band it seems, so phone is radio-less for me now
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Click to collapse
There's a solution for this problem, if you are s-off-ed. I also did the same thing - i selected USA bands and my phone radio died. Just make a nandroid, flash ARHD , go to the same 4636 menu and it will give you another option in band selection - Auto!! Choose auto, then reboot and make sure you have connection with the network. Then restore from nandroid and you're good to go! I will try to find the link to the original thread!
EDIT: There it is: http://forum.xda-developers.com/showthread.php?t=2773907
If it helps you - thank the people in the original thread, i didn't find this solution, i'm just sharing the info!
vanshee said:
There's a solution for this problem, if you are s-off-ed. I also did the same thing - i selected USA bands and my phone radio died. Just make a nandroid, flash ARHD , go to the same 4636 menu and it will give you another option in band selection - Auto!! Choose auto, then reboot and make sure you have connection with the network. Then restore from nandroid and you're good to go! I will try to find the link to the original thread!
EDIT: There it is: http://forum.xda-developers.com/showthread.php?t=2773907
If it helps you - thank the people in the original thread, i didn't find this solution, i'm just sharing the info!
Click to expand...
Click to collapse
Thanks that was helpful! Somehow I also had recently loaded a Xposed app to show CPU speed on the top bar. I uninstalled that then after two reboots things came back. So odd, but I'm not complaining at this point.
after a google search it seems people have gotten into problems with chaning bands on verizon devices, the above solutions brings the radio back to life. But it certainly doesn't unlock LTE on europe bands.
So i guess its a lost cause, as it must be a hardware limitation
Yeah disappointing that we can't add those
Sent from my HTC6525LVW using XDA Free mobile app
I seem to be able to get Band 4 LTE sometimes on my Verizon M8 but how can we enable AWS HSPA+ bands?
How band 4 only sometimes?
BobbySteel said:
How band 4 only sometimes?
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Click to collapse
I guess my area has weak signal.. switches between LTE and 3g constantly.
Ok guys ive finally unlocked Band 3 and 7 (europe) LTE on Verizon HTC one m8.....
Here are the steps
Thanks to @olokos @BlackSoulxxx @fffft
Original thread for unlocking all bands
wow!
good job
was it hard? im afraid...