Database Users

Is it 900MHz or 900/1800MHz

Gents,
I have been following this forum for about 9 months now; it is a great place to visit if one has an XDA – which I do.
I have one question, I upgraded my Qtek1010 to rom ver: 4.00.21 ENG (from yorch.net), it gives an option to select band 900 (Europe) or 1900 (North America). Does 900 really mean 900 or does represent 900/1800 (Europe), i.e. can my mobile still hand over call to cells on 1800MHz in Saudi or is it limited to the 900MHz band as a result of this upgrade?
Thanks for your help

it should be 900/1800 i think
i seem to recall that EU were at first 900
and asia were 1800
and us were 1900
then dual bandphones came and
you could get
900/1800
and
900/1900
not sure about 1800/1900
so it should work on both 900 and 1800 because the phone is dual

I dont think the upgrade changes the hardware capability, the phone will be 900/1800 or 900/1900, the latter can only be used in UK/europe on the 900 band, the 1800 is not achievable as far as I know.

yes 900,hz means 900 only which means if you have been into the band tab in the phone options your device will now be stuck at 900mhz only meaing you have lost the 1800band.....
and 1900 wont work it wil lcause your phone to freeze/no signal.
what you should do is go into your bootloader and achange it to 900/1800 and do not touch the band tab again becuase if you do you will have to select either 900 or 1900
this is because you are using an american rom.....
use v4.00.05 or v4.00.11 they are english roms with 1800/900

Hi ...
The siginifact point is the device h/w type ... is it PW10A1 or PW10B ?? ... refer to the sticker on the rear side of the XDA.
In case it's A then it supports only 900/1800 and the 900 option will mean 900/1800 and the GSM menu should be adjusted to the right band ... if it's B then it's 900/1900 and you can only use the 900 MHz band of your network coz the H/W doesn't support 1800 MHz
Either the GSM menu or the Band tab has no effect if the H/W doesn't support 1800 MHz

Folks,
Thanks for your help, I guess until I downgrade to 4.00.11 ENG I will use the bootloader to set it to 900/1800 and stay away from the band tab.
Thanks again

you can use any version you want mate but if using an american rom like what i am at the mo (v4.01.00) just dont click on the band tab under the phone options as once you do theres no way to close that screen without select either 900 or 1900
if you do select either band just go into the bootloader and put it on 900/1800 again and dont touch the band tab that way you will still have your 1800 mhz band too
gaz

soft reset will solve the problem :lol:

lol yeah that also but why not try avoiding the band tab once and for all lol that way you wont have to reset the bootloader bit or reset it if you go into the tab lol

gazzaman2k,
You recommanded using 4.00.05 or 4.00.11, I found 4.00.05 in yorch.net, do you know were I can get 4.00.11? I'm assuming it is a better rom!
Thanks for your help

searche the forum for it mate youll find it v4.00.11 uncooked

The only place for 4.00.11 was Jiff kitchen but it's down now
The ROM part of TMO 4.01.00 is not bad at all ... I have it since 2 months now and it's so stable ... didn't try it with SD cards tho
you may consider this upgrade ... again, the ROM part only

is 850 mhz band possible?

does anyone know, or has anyone tried, to enable the wallaby for use on 850 band? yes, it's because of cingular.
could this be accomplished with a different radio stack (even from another device)?

The band that a phone works on is limitted by its hardware, not its firmware. IF the phone you have doesn't currently work on 850mhz, then there will be no way to get it to work.

Report GSM Frequency Band on WM5

Hi All,
is there anyway to determine what GSM frequency band a WM5 phone is currently using?
I would like to know if my WM5 device is using a 900 or 1800 MHz GSM band. The device is quad-band capable and the network I am on is dual-band 900/1800. I can't find any GSM hash codes to report the information and I've had a quick look through extended TAPI but can't see anything.
Building on from that is there anyway to force a WM5 device to only use 900 or 1800? i.e. the mobile would only report itself to the network as being 900 or 1800 capable...but not both.
Thanks, rhd

Phone find for GSM 2100 mhz band

Hello to all
i have been searching a few known phone's that i like but i can't seem to find a phone that has gsm 2100 mhz band is this a new band on the gsm network thier for i have to wait for them to make gsm 2100 mhz band phone
Reason being i with tmobile and the 3g i been told by tmobile rep only works for tmobile on 2100Mhz gsm band
if possible is thier away to change or reprogram your phone for the band or is this hardware in the phone
sorry i'm quite ignorant to this network tower thing but trying to learn
thanks for you help

you might as well be going from analog to digital. its normally not just a software update.! its a complete hardware change. If you look at the iphone for example it has 3 radio chips in it all for different bands!

LG Optimus 7 E900 Unlock 850 Mhz Band?

Hey all,
I just realized the E900 and E900h have the same modem. The problem with the E900 is that the 850Mhz band is locked. Is there any way to unlock the 850 mhz band? I need it for better reception with ATT.

On the e900 in the MFG menu I have the option to select both cmda and gsm 850mhz band.
I did load the att apn and developer unlock my phone, but I never looked for that band before so you might not need to do those things.

I just developer unlocked my phone. However the 850 Mhz WCDMA band is still locked. Can you receive WCDMA 850?
I'm wondering if one can flash an lg e900 with an e900h rom. By doing this, will this enable the 850Mhz band?
Thanks

Can I flash an E900H rom onto an E900?

I don't know about flashing the e900 rom, I have the stock vodophone rom updated to mango.
and I have 850, 1900 and 2100 bands displayed in my engineering menu > modem options > band selections. Not sure what to tell you.

@Etaduck
Yes I have the 850mhz WCDMA option in MFG. However it is not picking up an actual 850 WCDMA signal. Is your phone picking up 850 for 3g?

I select 850 wcdma restart and get 3g / h depending on where I'm located, but I usually just leave it on wmda automatic
I'm not sure if there is any other way to test what band I'm using, but I'm assuming that selecting it from the MFG menu would be using the 850 band.

can you tell me the exact configuration of your phone? Did you use MFG or Network setup? I desperately need the band as 3g in my area is 850.

AFAIK mobile devices need different communication hardware to physically access some frequencies.
Whilst there may be a software switch to activate access to a frequency.. that does not mean that the unit will contain the hardware to do so.
If I am wrong on this I would appreciate advice.
EDIT: More on this topic and an aswer similar to above here...
http://forum.xda-developers.com/showthread.php?t=1067830

E900 and E900h have different hardware conf, most likely different flash ic so its not recomended to cross flash it.