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So I am currently looking for a G1 to buy.
It will be bought from ebay, and basicaly my questions are.
They say unlocked and that the mobile will work for any GSM network, does this mean no 3G network? My simcard allows my current cellphone to go in 3G and I woundering if this would change with the new phone.
And are there any good tips for me? To look out for while I'm browsing the G1 auctions and stuff?
Thanks in advance, Bread. <3
Unless you end up buying some kind of crazy G1 knockoff or a broken phone, it will work on 3G. Most likely 1700AWS (US T-Mo) and 2100 (pretty much the rest of the world).
Ofcourse I will aim for the real G1 ^^
No point in buying a chinese fake now is there? ^^
So should I aim for an unlocked one or can I do it myself?
(even though I wouldn't have access to any other sim than my very own.)
I'm not sure but I think I've heard of issues getting 3G with AT&T
xidominicanoix said:
I'm not sure but I think I've heard of issues getting 3G with AT&T
Click to expand...
Click to collapse
The G1 will not work on AT&T's 3G.
Be aware that AT&T and rogers in north america operate on 1900mhz and 850 for 3g as T-mobile uses 1700 and 2100. Not sure about overseas as they use 2100 too. You would have to ask someone else about that.
Hi, im from Brasil and my brother is in Washington and he decided to buy the Samsung Galaxy S International Version from Amazon !!
The phone arrived today but here is the problem, a Captivate from At&T arrived instead of the international version!
he is going to use it here in Brasil, with TIM on 2100 3G frequency!
So, my question is, is there any important difference between then?
Does is it work with the 2100 freq?
Can i install different roms on it, because i've been searching about the phone more on the I9000 forum!
I've asked him to check for firmware version and here is what showed up:
2.1-update1
baseband: I897UCJF6
SAMSUNG-SGH-I897
So, should him keep it ? Need fast answer because he is coming back tomorrow!
Thanks in advance!
I'm in Brazil and using a Captivate. I'm using it on Claro Paraná which is basically 2100.
To be honest, I'd keep the AT&T one. There's an easy way to unlock it via a Market App (forgot the name now) and there is a lot of ino for it here.
You may have some issues with phone numbers but I'm still looking into it - so far I decided to remove all DDD codes and carrier codes and use "Operadora DDD" app to apply them on-the-fly.
http://ars.samsung.com/customer/usa/jsp/faqs/faqs_view_us.jsp?SITE_ID=22&PG_ID=2&PROD_SUB_ID=557&PROD_ID=558&AT_ID=257835 said:
The SGH-i897 is a quad band dual mode handset. It supports GSM frequencies of 850, 900, 1800, & 1900. It supports UMTS 850, 1900, and 2100 frequencies. There is a possibility the phone may be used with a wireless operator outside the United States however this is not guaranteed. The phone has been optimized to work on the intended carrier it was designed for.
Click to expand...
Click to collapse
Straight from the Samsung Website.
Thanks for the answers !!!
I was on the run to find out more about the phone because all the previously research was for the I9000 international version and there´s this deadline to return the phone tomorrow!
But after researching all day and you confirmed that it works on 2100 freq we´re keeping it!
The other concern that i saw was the 3 button download thing, but i´ve sent the instructions to my brother and its working perfectly !
Thanks again, cant wait to put my hands on it!!
Not to mention that the build quality of Captivate is way better than i9000
Sent from my "phone" using Tapatalk
Hi guys,
I've searched the O2X forum regarding 850mhz UMTS (HSPA) and found nothing so far. Does anyone here have the O2X P990h model which supports the 850mhz UMTS band? The only thing I can find is that the G2X supports 850 but has the model number P999.
I'm currently tossing up between the Atrix and O2X (I use the Australian NextG network btw). The locked bootloader on the Atrix sucks and coming from a S-Off'ed Desire I really want custom roms etc., but the O2X doesn't have 850mhz support which is a must for me, at least until now.
Since then I've stumbled onto these:
http://www.mobicity.com.au/lg-optimus-2x-nextg.html
They appear to be in a lot of other online shops as well, has anyone actually got one and can confirm normal O2X mods/roms work on the P990H?
Hi, i get 'h' on mine above the signal bars which i am guessing is hspa. (I'm in the UK on orange.) Or am I getting confused with something different?
Sorry if i am talking about something different.
Sent from my LG-P990 using XDA App
This is on czech LG site for O2X:
2G network: GSM 850/900/1800/1900 MHz
3G network: UMTS 900/1900/2100, HSDPA 7,2Mbps / HSUPA 5,7 Mbps
so i guess 850Mhz for UMTS is really not supported, at least not on EU model (but i doubt the specs will be different elsewhere on P990)
Actually he's talking about one listed as "LG P990H Optimus 2x 850/1900 "
It's on negrielectronics web site as well as a few others... but it seems impossible to find out any information on it. I myself am also interested..
Fulwood Sedge said:
Hi, i get 'h' on mine above the signal bars which i am guessing is hspa. (I'm in the UK on orange.) Or am I getting confused with something different?
Sorry if i am talking about something different.
Sent from my LG-P990 using XDA App
Click to expand...
Click to collapse
No, completely different. The standard Optimus model number is P990. There is a 2nd model called the P990H which has 850mhz UMTS support (apparently at least).
So nobody has ever bought or used one of these phones?
where do you see a 850 umts version ?
Fido's LG P990hn is an 3g 850/1900/2100 phone. I'm curious that is it able to flash a p990's third party rom or not.
alexander宇 said:
Fido's LG P990hn is an 3g 850/1900/2100 phone. I'm curious that is it able to flash a p990's third party rom or not.
Click to expand...
Click to collapse
Don't take this as a definitive answer, but yes, it should be.
As you can see from the included screenshot, the ROM itself (via Hidden menu) lets you select 850 bands for both GSM and WCDMA, even though the radio doesn't support WCDMA-850 on the regular P990, which the screenshot is from. (This is from the new official Gingerbread, but it was the same on Froyo.)
You may run into other problems of course, like the ROM not liking your baseband, which is the one thing you probably shouldn't replace with stuff from the P990.
As stated, I cannot say for sure, but I think you can try without damaging your phone. (Or get someone else to try it on theirs ;-)) Which is my way of saying you probably should get a second opinion. And a third.
Cant you just get a G2X? Theyre 850 i think. Or you could join the dark side and use optus
Sent from my LG-P990 using Tapatalk
Just saw this thread and wanted to clarify for anyone else who might stumble upon it.
P990HN from Fido does support 850Mhz and also works with all the custom roms/kernels for P990
I'm brazilian.
In Brazil, UMTS is 850/2100mhz
(990h model)
here in mexico 850 its the 3g band, the 8xxx baseband + canadian ril makes the phone p990h, but the radio its not capable on p990 celphone, you can just load miui or cm7 and load the 8xxx baseband and the canadian ril then you can upgrade your phone
I have the LG Optumus 2x - P990.
This phone has a software lock on the UMTS 850Mhz Band.
Does anyone know how to root this phone and unlock it?
My phone will sometimes connect to 3G here in Canada, but then it reverts back to Edge Network. If I turn my phone Off/ON, it will usually connect to 3G then after a few mintues goes to Edge. Certian parts of the city I'm in will connect to 3G at all times, it's very strange.
I did not know (and still confused) about what I was doing when I flashed my Fido LG P990hN with T-mobile CyanogenMod7. I can operate on Rogers network, but its not stable. Im new to this so I don't know what questions to ask - I just keep reading forums and help files. Michael
Sent from my X10i using XDA App
I have the P990h model bring from Spain, and in the box says that works with 850/1900/2100 WCDMA, and all the roms from P990 works normally, right now im on CM7
Dwntwn said:
I did not know (and still confused) about what I was doing when I flashed my Fido LG P990hN with T-mobile CyanogenMod7. I can operate on Rogers network, but its not stable. Im new to this so I don't know what questions to ask - I just keep reading forums and help files. Michael
Sent from my X10i using XDA App
Click to expand...
Click to collapse
ok guys, here what I found.
I started separate thread in Q&A section:
http://forum.xda-developers.com/showthread.php?t=1521105
I'm in Ontario, Canada on Rogers. Got LG o2x from buddy who bought it in Europe. Then my mystery started. At home I was getting 3G and H, but at work (about 50km away) was getting only EDGE. But buddy with iPhone had 3G all the time. I got suspicios. Tried everything - flashing different ROMs, RILs, BBs... Same sh...it.
Then, my another buddy bought used LG 3D (Thrill) which was sold by Rogers (i.e. official Canadian edition) and asked me to root it. I did and tested - he had 4G (same as H, I guess) all the time. WTF!!!
So quest continues...
I found hidden menu in both phones. There I could force phone to use exact band I wanted. And mystery was solved...
So I forced:
GSM850 - my o2x got Edge; buddies: 3D Edge (the same)
GSM1900 (GSM PCS on phone) - my o2x: G; buddies: G
WCDMA1900 (UMTS_Band_II) - my o2x: H; buddies: 4G
and now...
WCDMA850 (UMTS_Band_V) - my o2x: NOTHING; buddies: 4G
So I made the conclusion that European o2x has WCDMA850 band disabled somehow. It explaines why I have H at home (big city where H is on WCDMA1900) and only Edge at work (small town and H is on WCDMA850).
Now I'm trying to find out if it's possible to unlock/enable WCDMA850 band on this phone. I read that Samsung has hidden menu where you can select bands you want to use.
Does somebody have and idea if there is something like that in LG?
Thanks!!!
Goldenmeadow said:
Does somebody have and idea if there is something like that in LG?
Click to expand...
Click to collapse
There is, but it won't do you much good, as this is, to my knowledge, a hardware limitation. The P990 can not use the 850Mhz band, the P990h and P990hN can.
If you still want to try you'll find band selection in the hidden menu. Dial 1809#*990#, select Modem Setting/Band selection.
TrymHansen said:
If you still want to try you'll find band selection in the hidden menu. Dial 1809#*990#, select Modem Setting/Band selection.
Click to expand...
Click to collapse
That's exactly what I did - went into hidden menu and selected each band one by one and then checked status in Engineering Mode of Modem Settings.
Now I have next idea: all this experiment I did while having "canadian" baseband 823. And i had WCDMA850 line in Band selection (but it didn't work).
Now I'm wondering if I still have WCDMA850 entry if I put "european" baseband 725. This will be my next step tonight. Because if I have WCDMA850 in 725 bb then I would assume that phone CAN handle it but it's disabled somehow.
What do you think?
I just thought that for manufacture like LG is easier to make just one universal phone and then limit available bands using software (or firmware)...
Thanks for ideas!!!
You'll find the (non-functioning) 850 band on European basebands as well.
I'm no electronics engineer, but I think there's more involved in supporting a specific frequency than just the baseband. (I think each frequency needs some kind of dedicated amplifier among other things.) The chip itself is capable of supporting 850 I think, but not the rest of the "supporting" electronics. I may be completely wrong though.
Basically the P990h is the revision which enables the 850 band. I think trying to get it to work on the regular P990 is futile, but you're of course free to try anything you want.
If I remember rightly, in the O2X review by Aandtech, they say that the 850 option is there in software but not there in hardware (on European version). So even though you can select it, it won't work. (At least that's according to the initial review)
Hello guys, as you can see I'm a new one on this forum, just joined a minutes ago,
but frequently looking on here for Q&A about previous phones I had.
Ok, so basically I got a Xperia Z (C6603) unfortunately my carrier is Nii digital s. de r.l. de c.v, known as
''NEXTEL'' my data plan consist on HSPA+ & 3G, I'm not so experienced on this, but as far as I know,
this carrier runs on HSDPA 1700 / 1900 frecuencies, very compatible with another devices bounded to T-Mobile.
My last phone was an Moto X (XT1053 Custom Roms based on T-Mobile stock), didn't had any single problem with it,
I just wanted the elegant Xperia Z.
The Moto X it's fully capable to get HSDPA 850 / 900 / 1700 / 1900 / 2100 for 3G.
But my C6603 it's only capable of HSDPA 850 / 900 / 2100, since NEXTEL would run only on the 2 left missing from this one,
I've made a bit of research and then I said, so if 6603 is LTE capable the another variant 6602 should be able to get
a complete set of 3G frequencies HSDPA 850 / 900 / 1700 / 1900 / 2100, those are the ones that I need,
I'm not really interested on 4G or LTE networks for this mobile.
It's just that at the moment the device is practically useless for me, so by reading and looking on this forum I was able to
discover that this device is essentially the same one as the 6602, just with the hardware mods to get LTE.
I've downloaded many FTF's, flashing only the basebands of another roms, including ones from the ZL 6506, 6502, etc...
This didn't brick the phone, stills... No signal on the phone, the baseband didn't even changed on system info, I modified the build.prop too with something like...
#!/sbin/sh
echo "telephony.lteOnGsmDevice=1" >> /system/build.prop
echo "ro.telephony.default_network=9" >> /system/build.prop
echo "ro.ril.def.preferred.network=9" >> /system/build.prop
And then flashing the different basebands...
(if there's a better detailed tutorial on this, should one of you guys be able to teach me the right way?)
So I was wondering if I should flash a complete FTF of the 6602 to get the phone working on a fully 3G network?
I'm not really interested on high speeds or LTE, just need the phone to be working on these frequencies to be able to make use of my carrier's plan that i'm paying atm.
One curious thing, if I use the same SIM on a xperia ZL, it gets wide signal almost around all the city.
I'm quite frustrated right now, hope any of you guys can help me with this.
Thanks!
(Sorry for my bad english though)
Device info:
Stock 4.4.2 (10.5.A.0.230)
Unlocked bootloader
Sim-Unlocked
Good battery health, not a single issue, it works fine with Telcel, Movistar & even Unefon Sim Cards.
-----------------------------
Uploaded an screenshot, I've just flashed a complete 4.1.2 stock rom of the 6602... No luck so far,
can any expert on the field, help me please?
Matiarena said:
Hello guys, as you can see I'm a new one on this forum, just joined a minutes ago,
but frequently looking on here for Q&A about previous phones I had.
Ok, so basically I got a Xperia Z (C6603) unfortunately my carrier is Nii digital s. de r.l. de c.v, known as
''NEXTEL'' my data plan consist on HSPA+ & 3G, I'm not so experienced on this, but as far as I know,
this carrier runs on HSDPA 1700 / 1900 frecuencies, very compatible with another devices bounded to T-Mobile.
My last phone was an Moto X (XT1053 Custom Roms based on T-Mobile stock), didn't had any single problem with it,
I just wanted the elegant Xperia Z.
The Moto X it's fully capable to get HSDPA 850 / 900 / 1700 / 1900 / 2100 for 3G.
But my C6603 it's only capable of HSDPA 850 / 900 / 2100, since NEXTEL would run only on the 2 left missing from this one,
I've made a bit of research and then I said, so if 6603 is LTE capable the another variant 6602 should be able to get
a complete set of 3G frequencies HSDPA 850 / 900 / 1700 / 1900 / 2100, those are the ones that I need,
I'm not really interested on 4G or LTE networks for this mobile.
It's just that at the moment the device is practically useless for me, so by reading and looking on this forum I was able to
discover that this device is essentially the same one as the 6602, just with the hardware mods to get LTE.
I've downloaded many FTF's, flashing only the basebands of another roms, including ones from the ZL 6506, 6502, etc...
This didn't brick the phone, stills... No signal on the phone, the baseband didn't even changed on system info, I modified the build.prop too with something like...
#!/sbin/sh
echo "telephony.lteOnGsmDevice=1" >> /system/build.prop
echo "ro.telephony.default_network=9" >> /system/build.prop
echo "ro.ril.def.preferred.network=9" >> /system/build.prop
And then flashing the different basebands...
(if there's a better detailed tutorial on this, should one of you guys be able to teach me the right way?)
So I was wondering if I should flash a complete FTF of the 6602 to get the phone working on a fully 3G network?
I'm not really interested on high speeds or LTE, just need the phone to be working on these frequencies to be able to make use of my carrier's plan that i'm paying atm.
One curious thing, if I use the same SIM on a xperia ZL, it gets wide signal almost around all the city.
I'm quite frustrated right now, hope any of you guys can help me with this.
Thanks!
(Sorry for my bad english though)
Device info:
Stock 4.4.2 (10.5.A.0.230)
Unlocked bootloader
Sim-Unlocked
Good battery health, not a single issue, it works fine with Telcel, Movistar & even Unefon Sim Cards.
-----------------------------
Uploaded an screenshot, I've just flashed a complete 4.1.2 stock rom of the 6602... No luck so far,
can any expert on the field, help me please?
Click to expand...
Click to collapse
The Cellular frequency which a phone can operate depends on the MODEM which is a hardware component
You will not be able to tackle this issue by flashing 6602 firmware
''Qualcomm MDM9215M''
Both variants share the same exactly hardware, just programmed many hardware limitations I guess for the 6602 to only work on HSPA,
6603 didn't had those limitations so it can operate in LTE bands, as far as I know.
Matiarena said:
''Qualcomm MDM9215M''
Both variants share the same exactly hardware, just programmed many hardware limitations I guess for the 6602 to only work on HSPA,
6603 didn't had those limitations so it can operate in LTE bands, as far as I know.
Click to expand...
Click to collapse
You need the 1700/1900 bands ,no?
But your phone doesnt have the chip to receive those bands hence no network coverage...
Simply, if you want it to work you can get the motherboard of a faulty C6602 and put it in your phone, which is real expensive and not worth it.
Hi,
Any way we can unlock global hspa bands on XT1064 similar to Moto G 2013 XT1032?
http://forum.xda-developers.com/moto-g/general/unlock-hspa-bands-moto-g-1700mhz-xt1032-t2878441
I would like to activate 2100 for Asian countries.
Thanks in advance.
Moved to correct forum
Any insights?
zoomingrocket,
Did you find any more information on this? I bought an xt1064 on the mistaken data up on gsmarena that the US GSM version supported 2100 in addition to 1700, but now it turns out that it doesn't. I'm no longer in the US, so I can't exchange it. I've searched around for other ways to activate the 2100 band on the xt1064 but haven't found anything. Have you? Have you tried the steps in the link you posted?
Thanks.
Update
For anyone interested, I did go through the steps in the OP's link on my xt1064, with the exception of step 34 which explicitly requires root (mine is not rooted yet, running 5.0.1), and it did NOT unlock the 2100 band for me. So either the tweak isn't effective without root or the radio simply does not support the 2100 band. zoomingrocket, I noticed that you asked in the other thread if root was necessary for it to work. So it sounds like you're in the same situation as I am. I also searched the longer thread (the one not specific to moto G) for anyone who got it to work without root, but I didn't find anything definite. I'm hesitant to try to root now since some people have been having problems doing it on the xt1064, but according to this thread ChainFire has ordered an xt1064 to try to work on a stable root: http://forum.xda-developers.com/moto-g-2014/development/xt1064-lollipop-root-t2938051/page11. If you do root it by the other method and try unlocking the band, it would be great if you'd post the results, whether the 2100 band works or not (and I'll do the same if I decide to root either now or after there's a more stable root method). Still holding out hope that it's not a hardware limitation. Thanks!
hi,
well i tried this on mine 1064 model, i was able to add additional bands and remove some, leading to successfully disable sim card to work etc...
re-flashing stock firmware helps with fixing it.
But i still did not enable 3G on mine phone.
...
can anybody with 1063 model and some spare time, follow OP and just post screenshots of enabled bands on his phone... pretty please :fingers-crossed:
@mattiawhite, @khawaja00, @zoomingrocket,
I am facing the same problem with XT1064 which I brought from US and only 3G band 2100MHz in use in Sri Lanka where I am living.
1. Were your attempts successful on unlocking 2100MHz band on XT1064 ?
2. Hope it is not a hardware limitation.
I am quite new to this and can someone please put down the steps to unlock bands on XT1064 .
Thanks!
I'm stuck at #8.
I start "QPST Configuration" and don't see my device there. Any advice on this matter?
'Motorola QC Diag Port' is installed properly as described in given links.
Gsmarena and all sites on the web say moto G 2014 support 2100mhz band.
But why doesn't it work in Asian countries which use 2100mhz band?
Did anybody tried this and make it work?
I want to have 3g connection in Europe on my XT1064...