I have been looking into some Chineses clones of cell phones and a majority of them use the MT6589 SoC which it very cross compatible with firmware across the board of other phone that use this chip. Most websites say these phone only support 3G:WCDMA 850/2100Mhz which wouldn't work in the USA for 3G speeds. But according to the official site for this chip it has an advanced multi-mode UMTS Rel. 8/HSPA+/TD-SCDMA modem built into it.
My questions are,
1. If this SoC has HSPA+ built into it then why do most site say it only has WCDMA 850/2100Mhz and not the HSPA+ frequencies?
2. If this Chipset has HSPA+ built in but just not enabled, how would we enable it?
I saw the same thing and posted something similar to your thread at a few places....nobody answered. the RF chip use by the 6589 is the mt6167..maybe something I miss.. How it is not been done yet....
if you find something, let me know.
Yes! it supports it
I own a mt6589 chipset device and it supports HSPA+
Hope this helps you. Well my device is Micromax A116
Related
Greetings, can anyone please tell me if there is any way to get my T-mobile device to recognize other GSM frequencies? It is currently a dual-band pocket pc device and I would like to make it such that it recognizes the 850 Cyngular frequency in the US. In other words, how can I make my dual-band device a quad or tri-band device?
ksymeonides said:
Greetings, can anyone please tell me if there is any way to get my T-mobile device to recognize other GSM frequencies? It is currently a dual-band pocket pc device and I would like to make it such that it recognizes the 850 Cyngular frequency in the US. In other words, how can I make my dual-band device a quad or tri-band device?
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Hmm. i would say only by soldering. It's a hardware limitation of the device...
Stefan
The MDA/XDA II device is already tri-band.
or did I missunderstand you?
greets Alex
alexball said:
The MDA/XDA II device is already tri-band
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That's right. But the MDA/XDA I is only a dual band phone.....
Stefan
Yeah, my device is only dual band. I thought that perhaps all these devices initially had the potential or ability to pick up any signal but that it was a software issue to actually start doing so. I am not too good with the techy lingo, but is there something called "soft phone"? I can't imagine companies manufacturing very similar phones overseas and in the US and the only difference being that one is dual band and the other tri band. It makes sense that these devices are all quad band and the company places limitations on them depending on where they are purchased
no the HF VHF and UHF and so forth need a frontend which cant just be programmed like that it have to do with filters and such as in before the signal ever get close to being digital and programmable
GSM BAND SWITCHING SOFTWARE
DOES ANY ONE KNOW WHERE CAN I GET A HOLD OF THIS? THANKS
hi Rudegar
can you shed a little more light on the filters and hardware change that would be required to change a frequency or activate another if the chip has it. ( sometimes it is capable but not activated )
I have been doing some research and found that the RF transmiter RT6285 is capable of AWS (band IV) (1700/2100 UMTS) or T-Mobile 3G frequencies.
How can we unlock this chip and change the frequency or is it posible (the right person with the right equipment) to unsoder existing chip and transfer it to another phone?
Here are few Atachments that have intersting reading...
This explains what the AWS band is all about and how it will be divided across cariers.
http://www.phonescoop.com/articles/article.php?a=99
The other two are pinouts of the chip and how it interfaces with the MSM7200 family... What got me thinking is that T-Mobile has MyTouch (PVT32B board) and the future MyTouch Fender LE (PVT32A Board... ???) They both seem to use this RTR6285 and the board does not change from Asia to Europe to US... So the chip must be and (it seems in the technical diagrams) is capable of AWS spectrum that would make any phone with this chip able to be used on the T-Mobile or other cariers that will be using this AWS spectrum. MSM72XX is widly spread in WinMo and Android devices.
Please if someone can continue the reaserch or elaborate on the Programing or options with resodering..
Does any body know if it is possible and if so how to enable the HSPA: 850/1900 band on a Global (GSM/CDMA) Version of the TP2.
It already has the HSPA: 2100 enabled... so maybe someone RF inclined could shed some light on this question.
Thanks
I dont believe it has the hardware to do it. It is not a software tweak.
That is why so many people waited for the ATT version to come out. There is an Australian version that works on one of the bands but not both.
Sorry to say that I think you are wrong about the Hardware reason...
Apparently the Pro2 has the chip installed, but it's locked down some how. That info has been floating around from an inside source at Telus. they say it actually has 850/1900/2100 UTMS bands but just got "locked" by Telus.
Also sites like Engaget has long posted some HTC FCC info proving that; http://www.engadget.com/2009/05/20/htc-passes-cdma-gsm-hybrid-touch-pro2-through-the-fcc/
Also The TP2 uses Qualcomm's MSM7600. The specs for that processor allow two major sets of radio interfaces, only one of which supports CDMA 800 and 1900. That major set has two variants that support HSPA: 2100+800 or 2100+1900+850.
So the question is; is there anyone with the proper knowledge that can tell what is onboard the TELUS TP2 and if it has infact the variant that supports the North American frequencies, how do we enable it?
Thanks for posting with FACTS and not Thoughts as this is the only way we will get a valid answer to this question.
Hmm this is definitely an interesting idea. I'd love to have the front facing camera of the Global Version, but I still need 850/1900 UMTS
850/1900 WCDMA on Global version
Gentlemen:
While the chipset has the various frequency capabilities, it is the tuning of the antannae that determines which frequencies are recieveable , ie, turned on, in the various versions. The AT&T version has a different tuning of the antannae than the global versions.
While theoretically possible, the anatanne is part of the main board and must be physically removed and replaced. I have not been able to find a universal antannae that could be resoldered to the board, if one was brave enough to give it a try.
there is software changes to the chipset controller required as well.
I think it is pretty impractical and likely impossible to do outside of have a new board installed with the properly tuned antannae to make it work. I have researched this for some time now, in an attempt to be able to use the EU versions here in NA. I travel internationally a lot, to Asia and EU, and need the 2100 band, so that has been my motivation.
There may be someone else out there who has different information, but this is what I have learned in digging through the available data for the past 3-4 years of various HTC devices and their variants.
Hope this helps,
MWS
Ok, so here's the idea:
According to the wiki page for the Universal, the phone uses the Qualcomm MSM6250 for the cellular functions. If you look at page 5 on the datasheet for the MSM6250, you'll see that the chip does indeed support quad-band GSM, as well as UMTS 1900 (1850 MHz - 1910 MHz) in addition to the UMTS 2100 band (1920 MHz - 1980 MHz). I assume these North American frequencies were disabled in the chipset's firmware to avoid extra licensing costs since the device would never be sold in North America.
Qualcomm has a program which allows for diagnostics and configuration of baseband chips in phones called QPST. If you look on page 83/84 of the program's user manual, it appears that you can specify which band classes the phone is allowed to connect to. I have no idea if this will work since my Universal hasn't arrived in the mail yet, but I just wanted to share what I found with all of you.
Being a new member, I can't post links to the pdf files, and the files themselves are apparently too large to upload. However, if you search on google for "80-v1400-3_h_qpst_ug.pdf" you can find the QPST manual, and "MSM6250 datasheet" for the chipset datasheet.
This, I help to share it here
This seems interesting, please keep us informed on how all develops.
If anyone can help on this please post here, if not stay away of posting "I wish, I like", etc.
Will sticky for the time being
rockstar95 said:
Ok, so here's the idea:
According to the wiki page for the Universal, the phone uses the Qualcomm MSM6250 for the cellular functions. If you look at page 5 on the datasheet for the MSM6250, you'll see that the chip does indeed support quad-band GSM, as well as UMTS 1900 (1850 MHz - 1910 MHz) in addition to the UMTS 2100 band (1920 MHz - 1980 MHz). I assume these North American frequencies were disabled in the chipset's firmware to avoid extra licensing costs since the device would never be sold in North America.
Qualcomm has a program which allows for diagnostics and configuration of baseband chips in phones called QPST. If you look on page 83/84 of the program's user manual, it appears that you can specify which band classes the phone is allowed to connect to. I have no idea if this will work since my Universal hasn't arrived in the mail yet, but I just wanted to share what I found with all of you.
Being a new member, I can't post links to the pdf files, and the files themselves are apparently too large to upload. However, if you search on google for "80-v1400-3_h_qpst_ug.pdf" you can find the QPST manual, and "MSM6250 datasheet" for the chipset datasheet.
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After doing some more research, it seems like the NV_BAND_PREF_I value in the NV-ram has to be changed. From what I've read, this value "stores the band-class preference on a per NAM basis." I found a recent thread discussing this same idea, except it's going from US bands to European bands on the Motorola Atrix. As seen in post #8, a member edited the NV_BAND_PREF_I and apparently was successful.
http://forum.xda-developers.com/showthread.php?t=992635
You should check out the files i posted on this thread link. It has some debug tools for the modem that might help -Activesync2Qct, Activesync2WModem, BandSel, NetSel, openqct, Uni_AT,WModem, WmodemX, and xBBBL.
NetSel has options for gsm850 and umts1900, don't know if it does anything though.
I got involved in a discussion in another forum that's turned into why the North American Galaxy series has a Snapdragon and not the Exynos. What are your thoughts?
Mine comes from the Sprint S2, we were told it had the Exynos because of WiMax. The Exynos wasn't compatible with the LTE modem at the time so everyone else had the Snapdragon. Now, its due to energy issues and it sucking the battery because of, I can only assume, compatibility issues. Yet, the Note 3 has the Exynos and can use LTE, right?
So what gives? I don't care about which SoC is better - that would go on for months. Just the reason behind the choice.
Sent from inside the matrix
T-Mobile note 3 has snapdragon 805 I think. Actually I think all variants do. I always read that snapdragons were actually better in performance standards and architecture of chip is why. Even though exynos may have a higher clock rate the snapdragons actually do calculations "better". Back when one of the galaxy series came out, I watched countless YouTube explanations explaining which is "better". As to why they use one in a us brand versus international version, no idea.
Sent from my SGH-M919 using Tapatalk
I don't think we'll ever know, honestly. For every article I point out showing why my reasoning is correct, there's another stating the complete opposite. I thought there was some plausibility to it being about money but my Exynos phone wasn't any more expensive than the Snapdragon version. Then there was the conspiracy theory about carriers controlling what SoC's go in phones, time travel, Kennedy. There might be a shred of truth in that story I'm just not sure where. Oh internet...
I liked my S2 but I have to say, the Snapdragon has always been a beast (you can OC the hell out of them too) and there's way more development support with them.
Someone once told me that Qualcomm has intellectual property rights to certain CDMA LTE modem technologies in the USA. This especially applies to CDMA phones for Sprint and Verizon. If that is true, then it is cheaper for Samsung to use Qualcomm LTE chips since using Exynos LTE chips would require a licensing agreement with Qualcomm.
Edit: I found this article that explains it: http://www.tmonews.com/2012/05/editorial-why-a-snapdragon-s4-galaxy-s-iii-is-awesome/
Excerpt:
"But if you are thinking that other carriers will get SoCs other than Qualcomm’s in the future, you’d probably be wrong. Most LTE modems do not support U.S. Digital Dividend frequencies, which means the LTE networks of AT&T, Verizon Wireless, and most regional carriers will be stuck with Qualcomm’s modems. T-Mobile can use non-Qualcomm LTE modems because the AWS band T-Mobile is using is a standardized band that is well-supported. Verizon Wireless, Sprint, and most regional carriers operate CDMA2000 networks, which means they have no choice but to use Qualcomm’s modems, since no one else makes CDMA2000 modems because Qualcomm owns all the IP rights to the cdmaOne/CDMA2000 technologies. Maybe once CDMA2000/LTE carriers start offering devices that don’t support CDMA2000, then we’ll see non-Qualcomm Snapdragon LTE devices on those networks, provided that U.S. Digital Dividend, ESMR+Cellular 850, and Extended U.S. PCS bands are all supported by non-Qualcomm modems by then."
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