Database Develop

Xoom and GSM

Hi all,
I'm considering to buy a Xoom for using in Vietnam. However, I'm not sure if it can work with 3G SIM card which is from GSM, not CDMA service provider. Please enlight me. Thanks.
Sent from my Nexus One using Tapatalk

CMDA doesn't use sim cards at all.
The XOOM has a sim slot, but that is for the 4G LTE and it is extremely unlikely that it could be hacked to work with GSM.
You should look into getting a WIFI XOOM and using a portable wifi hotspot.
BTW: I thought that most Asian countries used CMDA?

The Xoom with GSM networking is being released pretty soon for European countries. OP you should wait for one of these and import it, I know I will be.

Thanks for your reply
SquareBare said:
CMDA doesn't use sim cards at all.
The XOOM has a sim slot, but that is for the 4G LTE and it is extremely unlikely that it could be hacked to work with GSM.
You should look into getting a WIFI XOOM and using a portable wifi hotspot.
BTW: I thought that most Asian countries used CMDA?
Click to expand...
Click to collapse
In Vietnam, among 7 telcos, 2 run on CDMA and they are the smallest networks. All other big ones run on GSM. CDMA is popular in Korea and Japan, I guess.
fatboynotsoslim said:
The Xoom with GSM networking is being released pretty soon for European countries. OP you should wait for one of these and import it, I know I will be.
Click to expand...
Click to collapse
I will wait till GSM version is launched then. Or wait for Samsung Tab 10.1/8.9 slim version

[Q] factory reset

hey guys quick question
i brought a at&t nexus1 off ebay. the seller mentioned it will can and only work on tmobile 2g [i am t-mobile],
my question is if i factory reset/wipe the nexus1, does it lose complete compability with tmobile?

Factory reset only wipe data. you can still use the phone with tmobile
and still 2g only

so flashing roms, kernels, recoveries and all that good stuff, in the end i will still be able to activate the phone aka [ google sign in at the beginning activation ] with a tmobile sim card?

jt.one said:
so flashing roms, kernels, recoveries and all that good stuff, in the end i will still be able to activate the phone aka [ google sign in at the beginning activation ] with a tmobile sim card?
Click to expand...
Click to collapse
Yes. Just keep in mind that you'll need to stick with american firmware. With different ROM, you can even use 3g, but it depends on you provider too.
Sent from my GT-I9000 using xda premium

Virnik0 said:
Yes. Just keep in mind that you'll need to stick with american firmware. With different ROM, you can even use 3g, but it depends on you provider too.
Sent from my GT-I9000 using xda premium
Click to expand...
Click to collapse
He will not be able to use 3G on Tmobile no matter what ROM he use.
The 3G limitation is a hardware issue.

baseballfanz said:
He will not be able to use 3G on Tmobile no matter what ROM he use.
The 3G limitation is a hardware issue.
Click to expand...
Click to collapse
Really? How so? Nexus One do support 3g. Isn't it matter of installed modem? But maybe T-Mobile has modified it somehow on hw basis...
Sent from my GT-I9000 using xda premium

Virnik0 said:
Really? How so? Nexus One do support 3g. Isn't it matter of installed modem? But maybe T-Mobile has modified it somehow on hw basis...
Sent from my GT-I9000 using xda premium
Click to expand...
Click to collapse
There is two version of Nexus 1, one made for Tmobile frequency and one made for AT&T. While they are both sim unlock, you can put sim card from either carrier into the other and it will work as far as phone calls. For 3G support a Tmobile sim in a AT&T N1 will only work with 2G not 3G.

baseballfanz said:
There is two version of Nexus 1, one made for Tmobile frequency and one made for AT&T. While they are both sim unlock, you can put sim card from either carrier into the other and it will work as far as phone calls. For 3G support a Tmobile sim in a AT&T N1 will only work with 2G not 3G.
Click to expand...
Click to collapse
I suppose that it is only T-Mobile's fault, not phone's. Phone itself do support 3g, and I do suppose that T-Mobile has just disabled 3g on the SIM or on the modem's side.
Sent from my GT-I9000 using xda premium

Virnik0 said:
I suppose that it is only T-Mobile's fault, not phone's. Phone itself do support 3g, and I do suppose that T-Mobile has just disabled 3g on the SIM or on the modem's side.
Sent from my GT-I9000 using xda premium
Click to expand...
Click to collapse
How is it T-mobile's fault? Their 3G work on a certain frequency. AT&T 3G work on a certain frequency. If you buy a phone that does not work on your carrier's frequency, it's the buyer's fault*.
*Nothing against the OP in this post. He knew he bought a AT&T N1 and know 3G don't work on T-mobile.

baseballfanz said:
How is it T-mobile's fault? Their 3G work on a certain frequency. AT&T 3G work on a certain frequency. If you buy a phone that does not work on your carrier's frequency, it's the buyer's fault*.
*Nothing against the OP in this post. He knew he bought a AT&T N1 and know 3G don't work on T-mobile.
Click to expand...
Click to collapse
yeah lol i dont even have data on my phone, so 2G / 3G doesnt even matter to me,
im just worried if it i factory/hard reset the phone, that the phone will "lock" back on AT&T.
but imo, since the N1 is carrier unlocked by nature, it will stay that way no matter what i do right?

jt.one said:
yeah lol i dont even have data on my phone, so 2G / 3G doesnt even matter to me,
im just worried if it i factory/hard reset the phone, that the phone will "lock" back on AT&T.
but imo, since the N1 is carrier unlocked by nature, it will stay that way no matter what i do right?
Click to expand...
Click to collapse
correct, factory reset will only wipe data. out will not get lock into any network.

baseballfanz said:
How is it T-mobile's fault? Their 3G work on a certain frequency. AT&T 3G work on a certain frequency. If you buy a phone that does not work on your carrier's frequency, it's the buyer's fault*.
*Nothing against the OP in this post. He knew he bought a AT&T N1 and know 3G don't work on T-mobile.
Click to expand...
Click to collapse
True. So then we are back at my first point - wrong modem. It can be easily reflashed without loosing any data, so Nexus will operate on frq your provider uses.
Sent from my GT-I9000 using xda premium

Virnik0 said:
True. So then we are back at my first point - wrong modem. It can be easily reflashed without loosing any data, so Nexus will operate on frq your provider uses.
Sent from my GT-I9000 using xda premium
Click to expand...
Click to collapse
You cannot change the operating frequency of the phone - it's a hardware limitation.

Maybe if you flash a new modem it can run on Verizon.

Virnik0 said:
True. So then we are back at my first point - wrong modem. It can be easily reflashed without loosing any data, so Nexus will operate on frq your provider uses.
Sent from my GT-I9000 using xda premium
Click to expand...
Click to collapse
It'll be good if you actually read before making false statements and insisting on them.
Read the FAQ, question 13.
Nexus has 2 HW variants, with 2 different sets of 3 frequencies for each variant. The variants differ in HW and use exactly the same SW, including modem.

Signal Booster

How can increase my signals. I'm using ICS
Sent from my Nexus S using xda premium

Switch to Verizon. *cough*cough*
Make sure your PRL and radio are the latest versions. And if all else fails you could try Googling an Airave machine.
Sent from my Nexus S 4G using xda premium

Could try flashing another radio some people have better reception on older radios.
Just and fyi radios are not rom dependant just make sure its compatible with your phone model
Sent from my Nexus S using xda premium

are we talking fm radio? sry for stupid question...

Not FM or AM radio - we are talking about the firmware that runs your phone's radio antennae which responsible for cellular reception

get rom manager and go to peter alphonso's thread. He's got all the radios in there....and no, this is not a radio, like an fm radio. this is the driver that provides the signal for your phone's reception...it's just called a radio. You may hear it referred to as a baseband occasionally, as well.

Some of the nexus 3g/4g users use something called Airave from sprint , it supposed to increase your signal strength pretty good. Hook it up in the home & you'll get some good signal. I don't have one atm. Some of the user called sprint saying their signal suck & so why pay for something you can't use, as in weak signal. So then the nexus user got theirs free. I'm not really sure if theres a charge to it or what, but I don't mind calling some time soon to get me one. Lol, my signal sucks as well & I'm on the latest radio, etc.

I think he is referring to this phone having a weak signal all around. I have the same issue. I had a Samsung Moment b4 the NS4G and when I sit in my living room, I used to get full 3g and full wifi with the Moment... but with the NS4G, I get almost half wifi and 3g goes from half to 3/4 on the signal meter. There are postings online reporting that Samsung used an under powered chipset for this phone, in order to get better battery life. I have an Airave from Sprint in my home, and it does work with the 3g signal... if I'm in the same room as the Airave, I have full 3g, but like I said b4, the signal gets real weak the further I get from it. (My wife's EVO 4G shows full wifi and 3g strength when placed next to my NS4G)
As far as I know, there is nothing we can do about the signal strength. I have tried several different roms, and many different kernels with this phone, not a single one touches the 3g or wifi signal issue.

i get great signal strenght, tmobile in nyc.
there are also some build.prop edits you can do too. anyways, heres the radio thread from the development section http://forum.xda-developers.com/showthread.php?t=1116884

rubyknight said:
Switch to Verizon. *cough*cough*
Make sure your PRL and radio are the latest versions. And if all else fails you could try Googling an Airave machine.
Sent from my Nexus S 4G using xda premium
Click to expand...
Click to collapse
Haha! Yes...switch to Verizon. Then you can not only get poor service and reception but you can get limited data! FTW!
Sent from my Nexus S 4G using Tapatalk

alfay13 said:
Haha! Yes...switch to Verizon. Then you can not only get poor service and reception but you can get limited data! FTW!
Sent from my Nexus S 4G using Tapatalk
Click to expand...
Click to collapse
OP isn't using sprint

Can we use 3G Dongle?

Hi,
Can we connect the 3G Dongle connected via the USB HOST to have Internet?
I found similar threads, but on Asus Eee Pad Transformer TF101 and Acer Iconia A500:
Asus:
http://forum.xda-developers.com/showthread.php?t=1151097
http://forum.xda-developers.com/showthread.php?t=1259677
Acer:
http://forum.xda-developers.com/showthread.php?t=1118639
Thanks for the reply.

i wouldn't say that ist's impossible, but i think nobody has made an app to make an usb dongle work

Same Q for me.
Sent from my GT-N7000 using XDA

Can somebody write an application which allows connection Note with 3G Dongle?
Thanks for help.

nice idea, but I can't really see why. Better data prices on a dongle? Custom Cantenna for hard to reach signals?

krypton_the_slayer said:
nice idea, but I can't really see why. Better data prices on a dongle? Custom Cantenna for hard to reach signals?
Click to expand...
Click to collapse
Where I live, data speeds are incredibly faster in data-only SIMs than the usual SIM even within the same carrier, they seem to be capped
This idea could be goldy if possible

I'm very interested in this too.
If the kernel modules are included, it should be trivial to write a shell script to connect using ppp.

matius44 said:
Where I live, data speeds are incredibly faster in data-only SIMs than the usual SIM even within the same carrier, they seem to be capped
This idea could be goldy if possible
Click to expand...
Click to collapse
data sims dont have voice channel on some carriers the voice channel is priority over data, some carriers even drop date when a voice call is engaged.....

sea doo said:
Can somebody write an application which allows connection Note with 3G Dongle?
Thanks for help.
Click to expand...
Click to collapse
Hello,
There is a solution to integrate a 3G usb dongle directly on Samsung Galaxy Note 2. Here is a youtube video link:
watch?v=ZToSbqVy5aE

He is using an wire, the modem, and a special app... what was the app name? is not in the link
edit.
This is: https://play.google.com/store/apps/details?id=de.draisberghof.pppwidget&hl=ro

All DC-HSDPA Discussion«

In an attempt to help tidy up this forum a bit, this thread has been created to centralize all discussion related to DC-HSDPA on the Nexus 4.
*NOTE* DON'T CREATE ANY OTHER THREADS REGARDING LTE. USE THIS THREAD TO ANNOUNCE OR DISCUSS ANYTHING INSTEAD!
Hi guys do we really need 4G or Lte these days ?
Those mobiles supports JUST one Radio frequency .. which is NOT good ..
So you will travel somewhere else 4g /lte will stop working cos of diff. frequency ..
It is about of time when mobiles will support all 4g /lte frequencies same as 3G network ..
I think DC-HSDPA is LEADER now days with brilliant speed ..
4G in UK has EE company which is completely UNACCEPTABLE ! Ridiculous prices overcharging .. NO not ready yet ..
Please leave comments below
Thnx

My phone is about 4-6 times faster than my home internet connection.
4/0.35 Mbit at home, ~20/3 on my phone.

Nuu~ said:
My phone is about 4-6 times faster than my home internet connection.
4/0.35 Mbit at home, ~20/3 on my phone.
Click to expand...
Click to collapse
Exactly
And what I do is I connect phone to laptop and have internet at home with great speed

Still better than my home WiFi.
-Sent from Marino's Maxx-

I feel like I'm not getting DC-HSDPA speeds with t-mobile in NYC. No LTE yet either
Still love this phone though!

3UK, DC-HSDPA speeds are fluctuating badly, in the same spot, speeds range from 0.5/0.3 to 14/4, throughout the day, it's terrible! Pings always seem to be around 60-90 though so that's alright.

How do to check the connection status of the N4? All I see is an H in the signal bar...

Anyone found any coverage on o2
Sent from my Nexus 4 using xda app-developers app

The N4 radio is not capable of showing when it is using DC-HSDPA, if you go into about phone > status, it'll tell you when using HSPA+ (HSPA+:15) but that's as high as it goes.

nellisere said:
The N4 radio is not capable of showing when it is using DC-HSDPA, if you go into about phone > status, it'll tell you when using HSPA+ (HSPA+:15) but that's as high as it goes.
Click to expand...
Click to collapse
The radio knows perfectly well what network type it is on/band/frequency. The problem is that Android has no standard way of displaying anything other than network type. Manufacturers implement their own field test apps, which can communicate directly to the radio and get this information.
Back to the point, no phone with proper Android does. Android does not have a definition for DC-HSPA+ as a network type. This was hacked into CM, which will bite them later on like it did Samsung for LTE (certain phones will say eHRPD instead of LTE since they have conflicting constant 14 in TelephonyManager). It's fragmentation at it's finest.

That's not the point, it can utilise DC-HSDPA, but it doesn't show it in TelephonyManager, even with CM's commit, they said it only works on certain phones because the radio would not show it to the software on most phones.

nellisere said:
The N4 radio is not capable of showing when it is using DC-HSDPA, if you go into about phone > status, it'll tell you when using HSPA+ (HSPA+:15) but that's as high as it goes.
Click to expand...
Click to collapse
high as i got is HSPA:8 in canada on wind mobile

Mine shows HSPA:10
Sent from my Nexus 4 using xda app-developers app

If you run speedtest or another app that uses data for a few seconds, after starting a test, quickly switch to the phone status (multitasking window) and it should show HSPA+:15 whilst data is flowing.

Yes! I can confirm... I see 15.
Sent from my Nexus 4 using xda app-developers app

nellisere said:
If you run speedtest or another app that uses data for a few seconds, after starting a test, quickly switch to the phone status (multitasking window) and it should show HSPA+:15 whilst data is flowing.
Click to expand...
Click to collapse
tried it but only HSPA:8 still. probably my carrier sucks 2mb up on full bars

How strange, not exactly sure how things work in America but I think you have to sign up to a high speed, or 4G plan for HSPA+, but like I said, I'm not entirely sure. There could also be an alternate APN for high speed.

i dont see the point of having lte when you can have hspa+. i get 25/3 speeds in hungary, which is more than enough.

rasengan82 said:
How do to check the connection status of the N4? All I see is an H in the signal bar...
Click to expand...
Click to collapse
It is all in your settings about phone .. there is network which say HSPA 10 .. that means it is enhanced HSDPA
and in older mobiles shows HSPA 8 which is lower ..
note : u can see this only in nexus 4 ROM or this style of android..
on mine lg it doesnt say number just HSPA ..

nellisere said:
3UK, DC-HSDPA speeds are fluctuating badly, in the same spot, speeds range from 0.5/0.3 to 14/4, throughout the day, it's terrible! Pings always seem to be around 60-90 though so that's alright.
Click to expand...
Click to collapse
mine speeds vary .. sometimes 12mbps sometimes 8,9 but defo faster than lg optimus..