I'm fully aware that Z3s come in different variants with support for different LTE and UMTS bands. So, is it possible to flash a D6603 firmware to my D6653 so I get North American LTE bands?
This is from my rather limited research that you can simply flash a different firmware to "unlock" these bands which are supported by the hardware.
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Forgive me if this is a trivial question, but since European carriers such as Vodafone and O2 Germany also have the dual-core version of the HOX, is it possible to flash a european radio and use the European LTE frequencies? Or are the frequency bands hard-coded into the chipset?
It was my assumption that the US and European LTE variants used the same hardware components, but were just set up to use different LTE bands.
Frequency support is set in hardware.
redpoint73 said:
Frequency support is set in hardware.
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Thinking more about this, I'm still not convinced it's impossible to flash a european radio on the HOX to swap LTE bands. Unless the physical antenna is different, I'd think that it's a possibility.
With my other phone, the Samsung Skyrocket, we can flash T-Mobile radios to gain support for the 1700 AWS band. The chipset supports it, and it just took a radio flash to activate it. AFAIK, you can't use 1700 and LTE though - that or a radio with support for both doesn't exist.
I guess it depends on what chipset the German One XL uses..but I'll wait to see if someone has luck before I risk my own One X.
The hardware is different, as I already said.
The Skyrocket (and a few other AT&T phones, like the Galaxy Note) included the AWS band in hardware (likely due to the now defunct merger with T-Mobile that was going on at the time). The hardware was there, but AWS was simply not enabled in software. Hacks to make AWS work on these phones just enabled the software side for what is already supported in hardware. Without the hardware already being there, no amount of radio flashing will create support for frequencies not already there.
Its possible that some bands are "hidden" in the same way that AWS was for the Skyrocket. Lots of folks here on T-Mobile are hoping the same AWS support is possible on our phone. But if the hardware is not already there (such as for different LTE bands, as you are asking for), you can't make it happen by flashing radios. In the case of AWS, AT&T had a reason for including support (T-Mobile merger). They don't have a reason for including support for LTE bands willy-nilly, just for the sake of doing so, without any tangible (monetary) reason.
If LTE bands are dependent on the physical chips that comes with it, doesn't it means that Nexus 5 should technically supports all LTE bands regardless of which region they are sold from? I highly doubt that there's any hardware difference that ships from google US, UK, JP, AU, etc etc. They must have come from the same factory but why the differences in the LTE band supported? Will software hack be able to enable those unsupported LTE bands in the future? Any guess?
I just got a D6603. I'm on T-Mobile and I wanted the phone to be rootable so I got the unlocked version instead of the branded D6616. However, the D6603 doesn't have LTE band 12 support, which means my signal at my desk at work is weak and frequently goes out altogether.
I found this guide on unlocking all LTE bands for a phone with a qualcomm processor. I was wondering if this is actually possible for the D6603 (i.e. band 12 is just blocked by the firmware) or if the D6603 lacks a certain radio necessary for communicating with band 12 towers. Has anyone tried this, or any other similar hack, for enabling a certain band or frequency on a phone that doesn't normally support it?
marchingknight11 said:
I just got a D6603. I'm on T-Mobile and I wanted the phone to be rootable so I got the unlocked version instead of the branded D6616. However, the D6603 doesn't have LTE band 12 support, which means my signal at my desk at work is weak and frequently goes out altogether.
I found this guide on unlocking all LTE bands for a phone with a qualcomm processor. I was wondering if this is actually possible for the D6603 (i.e. band 12 is just blocked by the firmware) or if the D6603 lacks a certain radio necessary for communicating with band 12 towers. Has anyone tried this, or any other similar hack, for enabling a certain band or frequency on a phone that doesn't normally support it?
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Check this to see which baseband exactly is you want to unlock and if your device supports that baseband. If the radio is missing, it would be impossible to unlock it. However if it is just the software, maybe following the guide help.
See attachment for your reference.
Or just wait for lollipop update. Just came across it
www.androidpolice.com/2015/06/03/t-...rows-in-band-12-lte-support-for-good-measure/
Dear all:
As you know, many phones has different sub-type that designed to support different LTE band of varioius geographical regions. As an example, the phone I use has three different variant of dual-SIM phone that differ only in different LTE band supported (Moto X Pure): Chinese variant, Latin America variant, Southeast Asian variant. Aside from different LTE band supported, everything else (hardware wise) is identical.
Can I simply burn Latin American variant ROM (which is also a dual-SIM) to a Chinese phone, assuming that despite differences in LTE band supported, the radio hardware is the same thus the radio*ROM is interchangable.
I hope my question make sense. thanks in advance.
Harv
I live in Australia and I know there's carrier firmware for Samsung phones Optus, Telstra, Vodaphone, and just XSA for Australia I would like to know if Optus, Telstra, Vodaphone specifically tune there modem files they provide in there firmware, so using Optus firmware with Optus sim card provides a better reception, battery life network speeds, then say using XSA with a modem that's for all Australia and no specific network intended.
I've also read someone suggesting sometimes carriers don't update there modem files they just stick with one that they found to work throughout a phones lifetime, uncertain how true untrue this statement was.
Thanks.
Alister. said:
I live in Australia and I know there's carrier firmware for Samsung phones Optus, Telstra, Vodaphone, and just XSA for Australia I would like to know if Optus, Telstra, Vodaphone specifically tune there modem files they provide in there firmware, so using Optus firmware with Optus sim card provides a better reception, battery life network speeds, then say using XSA with a modem that's for all Australia and no specific network intended.
I've also read someone suggesting sometimes carriers don't update there modem files they just stick with one that they found to work throughout a phones lifetime, uncertain how true untrue this statement was.
Thanks.
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Different carriers use different network/radio bands, the modem in their firmware is designed to work with the bands that their network supports. That is why a modem from one carrier's firmware won't work with another carrier's network if they support different radio bands. The XSA firmware uses bands that they all support, they just might not be the optimal bands supported by the various carriers, the "generic" bands instead of the "best" bands for "this" network or "that" network, it will work on those other networks, it just won't be as efficient as using the modem that comes in that carrier's firmware.
In other words, the modem in the XSA firmware might work on the Telstra network, it just won't work as well as the modem that comes in Telstra's firmware.
As for the question about whether a carrier updates their modem or not, depends on the network or the devices they offer. Usually, modems aren't updated unless improvements are made to the network itself that require the modem to be updated.
Sent from my LGL84VL using Tapatalk
Droidriven said:
Different carriers use different network/radio bands, the modem in their firmware is designed to work with the bands that their network supports. That is why a modem from one carrier's firmware won't work with another carrier's network if they support different radio bands. The XSA firmware uses bands that they all support, they just might not be the optimal bands supported by the various carriers, the "generic" bands instead of the "best" bands for "this" network or "that" network, it will work on those other networks, it just won't be as efficient as using the modem that comes in that carrier's firmware.
In other words, the modem in the XSA firmware might work on the Telstra network, it just won't work as well as the modem that comes in Telstra's firmware.
As for the question about whether a carrier updates their modem or not, depends on the network or the devices they offer. Usually, modems aren't updated unless improvements are made to the network itself that require the modem to be updated.
Sent from my LGL84VL using Tapatalk
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Yes i have extracted the modem file and flashed it before say Telstra and then got reception while using a Optus sim card, so your definitely sure in this case of Telstra, Vodaphone, and Optus providing modems optimised for there networks which XSA doesn't have?
The reason i ask is if that's true then i want to download, multiple firmwares for Optus for example extract the modem file from each, work out which one out of probably several Optus has released provides the best, reception, battery life, 4G data speeds is most reliable, i just hope it's not we assume XSA and telsta, vodaphone and optus are all different when in fact they are all the same.
Of course when it's LG vs Xiaomi or Oppo ect then definitely either the manufacture provided the modem files, or a carrier did if they market sell that phone on there network since they modify the firmware, hard to be sure they change the modem themselfs instead of sticking with the manufactures provided modem.
Hopefully that makes more sense.