i have a Samsung Epix (i907). all i need to know is, if it's possible to change the band in this phone, or any phone for that matter? this phone lists tri band (850/1900/2100) and quad band (850/900/1800/1900). i know that this phone as-is, isnt usable on t-mobiles US network, as tmobile's 3G uses 1700mhz uplink and 2100mhz downlink. so its missing the vital 1700mhz feature. so can i download a radio for this phone? or would i have to actually physically change hardware out of the phone? and if i were to physically change hardware out of the phone what would be compatable so that it would be usable on tmobiles 3G network? any info will be greatly appreciated thanks!!
GutterFaceMobile said:
i have a Samsung Epix (i907). all i need to know is, if it's possible to change the band in this phone, or any phone for that matter? this phone lists tri band (850/1900/2100) and quad band (850/900/1800/1900). i know that this phone as-is, isnt usable on t-mobiles US network, as tmobile's 3G uses 1700mhz uplink and 2100mhz downlink. so its missing the vital 1700mhz feature. so can i download a radio for this phone? or would i have to actually physically change hardware out of the phone? and if i were to physically change hardware out of the phone what would be compatable so that it would be usable on tmobiles 3G network? any info will be greatly appreciated thanks!!
Click to expand...
Click to collapse
I don´t think this is possible
But hope I´m wrong...
Okay, so my issue is that i have been given a Motorola droid from my girlfriend, and she does not know about cellular 3g bands. because of this she caught me a euro 3g band phone, 2100 and 900 MHz 3g only, and it is well past the maximum return times. i am extremely good with cellular internals as well as many other electronics fields. however i am at a loss for this answer, i have asked many of my cellular contacts and every one seems to just shrug.
if i can get a American or canadian Motorola Droid parts, is it possible to switch the frequencies my current droid sees? what determines this? is it just a simple antenna or is it a combination of antenna and programming? does any one know of someone who can or has done this successfully?
any help or suggestions are much appreciated
Hello,
Not sure if this in an answerable question, but here it goes.
Which is the most recommended Radio for my Provider, ICE in Costa Rica? They work over 1800mhz on 2G and 850mhz on HSPDA/3G, as far as I know is very similar to Bell Canada or AT&T in the states.
If someone knows the answer I would like to know as well the most recommended RIL.
I understand that the appropriate combination would give best signal strength results and better battery consumption.
Thanks in advance to anyone checking this post.
lmonge87 said:
Hello,
Not sure if this in an answerable question, but here it goes.
Which is the most recommended Radio for my Provider, ICE in Costa Rica? They work over 1800mhz on 2G and 850mhz on HSPDA/3G, as far as I know is very similar to Bell Canada or AT&T in the states.
If someone knows the answer I would like to know as well the most recommended RIL.
I understand that the appropriate combination would give best signal strength results and better battery consumption.
Thanks in advance to anyone checking this post.
Click to expand...
Click to collapse
Hi,
The best radio, is the one that works.
How does the radio work that is installed in your phone right now?
If there is a problem with reception, then think about changing it.
There is a radio thread and a ril thread.
Only go there if you need to.
hi there, i was wondering, since this phone has MSM8960 which is LTE-capable, and is in fact an LTE phone save for the fact that it is locked to 1900mhz, if it would be possible to "unlock" the radio to be able to use EU/World LTE frequencies.
now, i know that the antenna inside is most likely tuned to 1900mhz so the reception would not be optimal, but still i'm curious cause i found out that there is a tool called QPST service programing from qualcomm that seems to be able to change the radio settings
example link -> http://galaxys4root.com/galaxy-s4-t...aws-bands-on-att-galaxy-s4-sgh-i337sgh-i337m/
so yeah, has anybody tried yet?
Braccoz said:
hi there, i was wondering, since this phone has MSM8960 which is LTE-capable, and is in fact an LTE phone save for the fact that it is locked to 1900mhz, if it would be possible to "unlock" the radio to be able to use EU/World LTE frequencies.
now, i know that the antenna inside is most likely tuned to 1900mhz so the reception would not be optimal, but still i'm curious cause i found out that there is a tool called QPST service programing from qualcomm that seems to be able to change the radio settings
example link -> http://galaxys4root.com/galaxy-s4-t...aws-bands-on-att-galaxy-s4-sgh-i337sgh-i337m/
so yeah, has anybody tried yet?
Click to expand...
Click to collapse
I haven't such QPST knowledge, but I believe that QPST can enable the missing bands only if the are listed by the baseband, and then purposely disabled by Motorola when it sells the same phone in different areas.
I'm afraid it's not our case, given the phone is meant for a single market.
I believe that the antennas and filters shouldn't be a big problem, the problem is to have an hacked baseband, which is a task that very few people can do.
That said keep what I wrote with a grain of salt, and see if someone else has better ideas.
The Solutor said:
I haven't such QPST knowledge, but I believe that QPST can enable the missing bands only if the are listed by the baseband, and then purposely disabled by Motorola when it sells the same phone in different areas.
I'm afraid it's not our case, given the phone is meant for a single market.
I believe that the antennas and filters shouldn't be a big problem, the problem is to have an hacked baseband, which is a task that very few people can do.
That said keep what I wrote with a grain of salt, and see if someone else has better ideas.
Click to expand...
Click to collapse
nah, it should be just a matter of chaning the right NV settings to the appropriate values. that's the hard part basically, cause there are a ton and it's not immediate to locate them
i mean that biggest problem is antena switch
CornholioGSM said:
i mean that biggest problem is antena switch
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Click to collapse
Still a guess, but I blieve that hardly the switch would be a problem, if properly driven.
Btw a definite answer to this question should come identifying the switch IC and checking its datasheet.
Do you know what IC is doing that function in our Phone ?
The Solutor said:
Still a guess, but I blieve that hardly the switch would be a problem, if properly driven.
Btw a definite answer to this question should come identifying the switch IC and checking its datasheet.
Do you know what IC is doing that function in our Phone ?
Click to expand...
Click to collapse
if i dont forgot i can check it tomorrow
this thread is very actual in our time. I would also like to check out LTE for other bands in Verizon phones.
the problem is that topic starter gives link to activate AWS band, it's not LTE, it's WCDMA 1700MHz
olegfusion said:
this thread is very actual in our time. I would also like to check out LTE for other bands in Verizon phones.
the problem is that topic starter gives link to activate AWS band, it's not LTE, it's WCDMA 1700MHz
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Click to collapse
It was just an example, I believe.
And BTW would be nice to have the UMTS900 too.
In Italy some small areas are already covered, and starting from January/2014 wil be possible for the Operators to use it nationwide.
I tested it already on during the last summer vacations and is just awesome.
Better coverage than GSM900. with the speed of 3G.
Take a look at page 3 of Atrix HD teardown:
http://www.techinsights.com/uploade...2013/techinsights-motorola-atrix-hd-mb886.pdf
There are not only antenna switches at play, but also band specific power amplifiers.
Besides the hardware parts, I guess that our BP firmware will also be one of the show stoppers for achieving LTE e.g. at 800Mhz on Q.
[Atrix HD is very similar device (we share the same kernel) and we are able to use also its BP firmware to some extent (so the BP signature seems to be the same as on Q).]
olegfusion said:
the problem is that topic starter gives link to activate AWS band, it's not LTE, it's WCDMA 1700MHz
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Click to collapse
it was just an example so show that it is actually possible to unlock frequencies the phone was not meant to work with
kabaldan said:
Take a look at page 3 of Atrix HD teardown:
http://www.techinsights.com/uploade...2013/techinsights-motorola-atrix-hd-mb886.pdf
There are not only antenna switches at play, but also band specific power amplifiers.
Click to expand...
Click to collapse
Nice find, thanks.
Interestingly enough looks like the Atrix HD doesn't have any ACPM-5005, which is present (for sure) on the Photon Q, (is a band 5 850MHz power amplifier), while the Atrix HD is stated to support that band.
Too bad I cant read the full list of PQ ICs, some of them are unreadable, on the broken logic board I have handy.
For sure there are two ACPM-5002 (band 2/1900Mhz) power amplifiers, and the ACPM-7051, quad band GSM and band 1 & 5 (2100/850) LTE/UMTS/LTE PA
At least looks like the signals are routed differently between the two phones
Hi guys,i have htc one s with s3 processor..my gsm signal is very weak on this phone..wheare are the antenna conector for gsm on this phone? i think some might be dameged.i would apriciate some pictures. Sory for bad english.thanks in advance:good:
anyone?