The physical hardware between these three models of phones are the same, yet they have slightly different radio ROM configurations set through firmware. My issue is that the 910c I am using has UMTS 850/1900/2100 MHz capabilities and I would like to use it on T-Mobile's 3G network which uses the UMTS 2100/1700 MHz. Has anyone tried to modify the frequency multiplier to substitute either the 850 or 1900 MHz for the 1700 MHz for use with T-Mobile?
Any solution yet?
I would like to be able to use 3G also with T-Mobile and have been looking endlessly, have you found a solution yet?
Don't expect such a solution - I've never heard of a successful radio ROM mod; all radio ROMs are issued by the OEM / manufacturer.
Have a look at the Qualcomm MSM6280 chipset datasheet - it seems the frequencies are probably hardcoded.
but how's talking about some qualcomm? HP has intel inside
Related
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.
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.
AT&T/Cingular are in the process of rolling out their HSDPA network and a handful of cities are using it; NOW is the Universal capable of this....I asked a similar question about the UMTS 1900 MHz being activated so it could be used in the states; Granted I was given some very good replies but I am still curious. Over the past week I have been talking to some other engineers in my field and have found that a great number of things are possible with the Universal, it has the architecture to support this, SUPPOSEDLY ! Now lets look at UMTS as a whole; then HSDPA ! HSDPA is a software upgrade to existing UMTS software, that's all ! SO is it possible that we can have HSDPA on the Universal with an upgrade to the radio stack, I think YES !...and the bands should also be able to be activate, current UMTS 2100 MHz to 1900 MHz so it becomes dual band...the other is the GSM 850 band ! That apparently can be activated !...HOW is the big questions....Most of the HTC is limited by software; not hardware...its existing hardware has been built with scalability in mind...I just hope that some one can figure out the radio stack updates to facilitate this functionality !
The current model does not support HSDPA. However, I heard that the HSDPA version is due before year-end.
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
Back in december 2010, my i9000 worked just fine on froyo, with an provider that operates on 850 mhz for GSM and 2100 mhz for 3G. My work made me move to another provider which operates in 1800 mhz for GSM and 850 mhz for 3G. Also, my phone was great. Gingerbread came and, as everyone else, I made my update (and of course changed the bootloaders). The problem: I'm back to my old provider again (850/2100 mhz) and, as strange as it may seem, my phone can't connect to the gsm frequency (850) anymore! The 3G works with no problem. I've tested lots of modems, configurations, I have even returned to froyo, with no positive response. It seems like my phone has never had the gsm 850 mhz option. What has happened? Is it possible that my GSM frequencies have changed (by software?) Does the bootloader have anything to do with this? I'm just as confused as I can be! And I need my phone to work! Help me please!
Edit: DID IT!!!! I don´t know what was currupted, but I did a full format : SD,Sys,Data,Cache and after that I made a new ECLAIR (JM9) install and.... voillà....2G 850Mhz working again! Txs for the attention!