Database Users

question about band frequencies:

are the frequencies hardware bound or software bound??
i read that on the typhoon, depending on which rom you flashed, it will change from 900mhz to 850mhz, or vise versa. is this a possibility with the magician platform?

perhaps i should have been clear.
with the magician, we have a tri-band phone. most of them are 900/1800/1900mhz and US models have 850/1800/1900mhz.
with the typhoon, i read that the device is quadband capable, but only three bands are enabled at once. so you can get a audiovox smt5600, which has 850/1800/1900mhz, and flash a c500 rom to it and you will end up with a 900/1800/1900mhz device.
i always thought that the frequencies are dependent on hardware settings, but i guess there is more to it than that.
so what i am asking is, is it possible to get a lets say, qtek s100 and flash it with i-mate jam US version rom, than will it enable the 850mhz band and disable 900mhz band?

i didn't think this was so much a stupid questions....
enlighten me!

I remeber reading a thread on Modaco or Hofo a month ago about this issue. Try to search there and see if you can find the thread. The general result was that you can flash a 850 Rom on a 900 Magician and the 850 will work, the 900 will be disabled. There were a few posts there of members who confirmed it worked. However, because the radio part was designed for the 900 band, the slight change in frequencies can over time damage your radio and make it useless. So be carefull to try this. read the mentioned fora for more info.

As far as I am aware the 850/900 difference is in the radio hardware and cannot be changed in software.

i-mate Jam strange problem

Hi,
this is the first time im working with with pdas so im totally new in this area. I bought one i-mate Jam and im using ok with one card provider, yesterday i change for other provider and i dont understand why my pda cant get network with this new provider.. i try to make a manual search and no information. the pda is brand new and i also contact the provider to see if is not barred and all is 100% ok... can someone knows if this can be fixed or have any ideia about this?
regards

For sure your unit is SIM locked. There are threads on how to unlock. Please do a search.

the pda is not locked becouse acept card without any problems... the only problem is dont get network of one provider.

What are OS ROM and Radio ROM versions in your unit? If it's an old one try to upgrade to the latest. There are a number of ROM's available in the FTP
Try your new SIM in other phones and see if it works ok. Also try borrowing from friends SIM of the same provider as your new SIM as well as SIMs from other providers.

The magician is a tri-band device build in two flavors:
- 850, 1800, 1900mHz
- 900, 1800, 1900mHz
Could it be the one provider which doesn't work is operating on a non-supported band?
M

hi,
i flash this pda few hours ago and i still have the same problem.. i was looking in other sites and i found something about this problem.
Exact this models have to versions:
PM10A (900-1800-1900 mhz) and PM10C (850-1800-1900mhz) and the one that i have is PM10C. I have to find one way to convert it to PM10A so then i will be able to fix this problem.

When you find the way to change a PM10C to a PM10A or vice-versa you're the man! It's hardware specific & not build in the rom :-(
M

i know someone that can make this change but dont share with no one... i cant do a lot becouse i have only PM10c in hands and i dont have any PM10A to compare the boards.

I just did a search with the keyword "850" and there are 2 pages of threads about this. All threads confirm what what OLTP mentioned - the radio frequencies are set via hardware components and no software or hack can change it. In fact, "Reo" mentioned that he modified the hardware of his unit to make it into a 900/1800/1900 MHz unit.
The 850 and 1900 MHz frequencies are used in the USA, while the 900 and 1800 MHz frequencies are used in Asia, Australia and Europe. I'm pretty sure that your new SIM supports only the 900 MHz frequency. Ask your current provider or check their website to find out what frequency they use. If your provider supports only the 900 MHz, then your last resort is to change provider again.

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!

Lock to 900mhz

Hey guys my ex-Orange is on Virgin AU these days, using it as a tethered modem but I need to lock down to 900 as the Opyus/Virgin 2100mhz 3G spectrum is saturated in Melbourne to hell with all these 2100mhz devices over the last few years, any idea where I can get an application to lock to 900mhz 3G ?
Im using the HK rom a kind XDA'er uloaded for us

Under "Start\Settings\Personal\Phone\Band" (translated from German) you can preselect some frequencies.

thats the problem ! the only option is 2100/900 mhz together, nothing else under 3G

try....
On my rom I have two things to change on that page:
Networktyp: There I'm able to decide GSM or WCDMA
GSM should help you with your problem.
Band: There I can select the frequencies, but as you mention, there are always a UMTS band included.
Good luck and regards from AUSTRIA.
Stefan

[Q] Does the European Optimus 7 supports WCDMA 850?

I bought an European Optimus 7 and it shows on the box "WCDMA 900/1900/2100, GSM850/900/1800/1900"
There's any way to put this phone to work on 3G WCDMA 850 networks at full speed?
Thanks

I own a Telus version of Optimus 7. My phone has the 900 3G band on it. I will tell you how to check whether your modem supports 850 or not. First, you open up the dialer and enter ##634#. This will install the MFG app, that will be accessible through your app list. The password that it asks is 277634#*#. Now you have access to the manufacturer test/setting menu. Proceed to the Engineer Menu, and then Modem Setting, followed by Band setting. There, you should see all the bands that are available, and WCMDA basically means UTMS or 3G. If you have the 850 band, it should be available in this menu. There are two other things you need to do before gaining access to this band, if available. But in order for me to continue, I need to know which carrier you plan to use this phone on. I am going to assume you want to use this in North America and you have already unlocked it. Let me know, and I shall help you further on making your phone functional for a 3G connection. BTW, I am typing this on my Optimus 7...the keyboard is seriously great, and if it wasn't for the loose buttons, I would have absolutely no regret over my purchase.

Thanks.
I saw here, there are these options available:
1.Automatic
2.WCDMA Only
3.GSM Only
4.WCDMA 850
5.WCDMA 1900
6.WCDMA 2100
7.GSM 850
8.GSM 900
9.GSM 1800
10.GSM 1900
11.WCDMA 900

Sorry for picking up this old thread again but there is no final answer on this.
The point is that I'm having the same problem, I have a european E900 and I can see the WCDMA 850 in the MFG settings. So is this working?
I'm going to Thailand next week and wanted to use True Move 3G which is on 850 Mhz.

Ok, just for the record - I am in Thailand now and the 850Mhz 3G Network from True Move is not working on the European E900.
Hope this helps for those who were looking for this answer.