[Q] Flashing Galaxy S Modem to Galaxy S II? - Galaxy S II Q&A, Help & Troubleshooting

Hi!
I was wondering if it was possible to flash a Galaxy S modem to the Galaxy S II? Cause as of now, this phone is not released in Canada, and I don't think I would be able to receive the 3G unless it can accept that 800 band. Is this possible?
Thanks!

dude, the phone is quad band 3G+ . the international version will work in Rogers, Telus and all 850/1900 MHz networks you guys got up there just like it currently does on my ATT provider here in Boston.
And no, don't think about flashing a sgs modem. that will most certainly guarantee your phone's permanent and utter destruction.

It's weird, cause i have the i900 international... and I couldn't get 3G (HSDPA) until I flashed the Bell Canada modem onto it. I'm just wondering if that would happen to the i9100.
Unless the the base band already enables 850 and 1900... then it should be okay I suppose.

Hey guys, sorry to dig this thread up again. But just curious as to know why and how the modems are different between each other?
Have a similar issue with major battery drain on SGSII here in Australia, both phones running identical setups (I understand that kernel's being different is a major contributor too) but the SGSII is seriously dying with battery drain. Over all the modded SGS1 with different kernel etc gets much lower Quadrant scores than SGSII (obviously) but it is much zippier when being used, the interface is much smoother and faster than the SGSII visually. I diverse.....the issue I think could be the modem from the provider not being up to scratch. My modem I am getting a solid 3 days (finally I get to gingerbread and found a modem that is absolutely perfect for my phone and network)....after almost 2 years of various bouts of signal issues and/or battery drain issues.
Was curious to know what would be involved in getting the modem in my SGS1 to actually function for the SGSII?
Anyone want to give a run down on how modems are coded in a slightly dumbed down infor for semi-noob like my self?

Related

Is this phone exactly the same as the Euro SGS2?

http://www.amazon.com/Samsung-Galax...14FQ/ref=sr_1_3?ie=UTF8&qid=1323232696&sr=8-3
If so, what are the differences? I know AT&T has Skyrocket, but I don't really like how it has a different processor and it's 4.52 inch screen. So can I order that expecting to get the same thing as the Euro SGS2?
It is not exactly the same device, the keys are different, as well as I believe the 4g bands supported, so the ATT version wouldnthave working 4G in europe and vice versa. Also, most ROMs, kernels, and such developed for one are not compatible with the other (there are ways to get around this one though). But the main parts, screen, processor, and other internals are exactly the same, making the ATT version the closest US variant to the original (which is generally considered a good thing)
I've owned both. Switched to this phone because of the amazing screen problems. My friend owns the European version. The only difference is the "apple" button on the European one that the AT&T version lacks.
ATT version has NFC but not enabled at the moment.
epicstar1 said:
I've owned both. Switched to this phone because of the amazing screen problems. My friend owns the European version. The only difference is the "apple" button on the European one that the AT&T version lacks.
Click to expand...
Click to collapse
Which phone had the amazing screen problems?
HellBunny said:
ATT version has NFC but not enabled at the moment.
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Click to collapse
How come? And is it possible to enable it?
Well as long as the internals are the same. I couldn't care less about the bands. The Skyrocket just seems crap.
It's possible to partially enable it.
Main differences:
Different buttons at the bottom
I777 has NFC hardware
I9100 has FM radio
I777 has a crippled battery charger (Stock users won't notice this, but those that want to crank the charge current up a bit with a custom kernel will find that it isn't possible - we're stuck at 650 mA, which is stock on the I9100 also, but the I9100 can change it with kernel hacks.)
Entropy512 said:
I777 has a crippled battery charger (Stock users won't notice this, but those that want to crank the charge current up a bit with a custom kernel will find that it isn't possible - we're stuck at 650 mA, which is stock on the I9100 also, but the I9100 can change it with kernel hacks.)
Click to expand...
Click to collapse
Hah, that one I didn't know about.. thanks for the tip!
SupremeOverlord777 said:
It is not exactly the same device, the keys are different, as well as I believe the 4g bands supported, so the ATT version wouldnthave working 4G in europe and vice versa. Also, most ROMs, kernels, and such developed for one are not compatible with the other (there are ways to get around this one though). But the main parts, screen, processor, and other internals are exactly the same, making the ATT version the closest US variant to the original (which is generally considered a good thing)
Click to expand...
Click to collapse
Actually they support the same bands. Same exact radio even I believe.
Main differences are as Entropy listed: buttons, nfc/fm radio, and charging chip.
There are also a number of minor UI differences in some of the built-in apps, pull-down toggles, and settings. I've noticed voice quality is a little better with my AT&T version (I get less static incoming. Outgoing voice is clearer and louder). Data speeds are faster with my AT&T version. These last two may be due to different modems, SIM cards, and/or account provisioning by AT&T.
monkey hung said:
Which phone had the amazing screen problems?
How come? And is it possible to enable it?
Well as long as the internals are the same. I couldn't care less about the bands. The Skyrocket just seems crap.
Click to expand...
Click to collapse
Oh oops. The Skyrocket had the amazing screen problems. The problems are explained everywhere in the TMO SGS2 and the Skyrocket
GeorgeP said:
There are also a number of minor UI differences in some of the built-in apps, pull-down toggles, and settings. I've noticed voice quality is a little better with my AT&T version (I get less static incoming. Outgoing voice is clearer and louder). Data speeds are faster with my AT&T version. These last two may be due to different modems, SIM cards, and/or account provisioning by AT&T.
Click to expand...
Click to collapse
I think the I9100s have smaller TCP buffer settings by default. I remember looking at the settings in SiyahKernel, they were as small or smaller than those of UXKG3 for Infuse, which was notorious for bad network performance because of those settings.
skyrocket is slow vs the s2 speed wise.
AT&T version only has tri-band HSPA radio while international verison of quad-band HSPA radio. So, you may have problem getting 3G outside North America.
also the noise canceling mic is in a different position

[Q] Why is "Unlocked" not as good as International?

Hello! I am deploying to Kuwait for a year and was hoping to get international service on my unlocked SGSII i777 AT&T branded phone. I'll be installing CM7 or CM9 on it, but based on the posts here, there's some reason that it will not work internationally, at least not nearly as well as an International i9100? Is there anyone that could help explain why I would run into issues?
Slightly different hardware. CM7 should be about the same between the two - You will not see CM9 until kernel source for the I9100 becomes available, and even then, the audio libraries may be problematic for in-call audio.
Entropy512 said:
Slightly different hardware. CM7 should be about the same between the two - You will not see CM9 until kernel source for the I9100 becomes available, and even then, the audio libraries may be problematic for in-call audio.
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Click to collapse
But I shouldn't have any problems with an international SIM?
MaxRabbit said:
But I shouldn't have any problems with an international SIM?
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Click to collapse
As long as your phone is sim "unlocked", you won't have issue with international sim unless it doesn't support the bands.
I can verify that I took my unlocked SGH-I777 to UK last week and put the sim card from O2 network. It worked like a charm.. 3G was working too without any issues.
Kuwait use GSM (2G) 900/1800MHz band as well as 3G on 2100MHz.
As long as your SGS2 unlocked, it should work, theoretically.
Band support is (I believe) identical between I9100 and I777.
Main difference is that the I9100 ICS leaks don't do much for us, we need a full I9100 release including kernel source to get ICS.
Thanks for the help, guys. My worries are alleviated
Be safe over there!
kelavine said:
Be safe over there!
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Click to collapse
Thank you kelavine
Best of luck... Hopefully this trend of things starting to get "interesting" around the Straits of Hormuz does not continue...
i just brought my 777 over to egypt and it is working just fine.

Australian Samsung Galaxy S II 4G

Hey guys 4G Galaxy S II was released in AUS recently..
Info sheet here
My question is would the current custom ROMS available work on this phone ??
Tempted to buy it.. if not I may just play it safe for the next international Galaxy release..
Depends on how different it is.
If it has a different processor (like the I9100G for example), forget it. Obviously being 4G the modems will be different, if they work with current I9100/T firmware you might be able to use existing firmware with a 4G specific modem but we won't know until someone with a fair amount of technical aptitude actually gets one.
If it does need completely different firmware, I wouldn't be holding my breath for custom roms/kernels being created for it.
Edit to add - My advice; get an I9100 or an I9100T. Only network you'll be able to use it on at the moment in AU is Hell$tra.
At 1.5GHz, its probably a different processor, so it wont work. With LTE, it probably has a snapdragon processor compared to our Exynos.
Currently own a i9100 very happy with it.. I was afraid it wouldn't work.. had a gut feeling it wouldn't wanted some clarification is all.
Cheers guys.

[Q] Samsung Galaxy S2 I757 vs.T989 vs.I727 Skyrocket Radio/Modem/Kernel? differences

Hey, I have the SGS2 HD LTE I757M and I was wondering if anyone knows what the substantial difference between the T989's kernel and the I757m's in terms of cellular reception/management as I am having issues getting AWS to work.
I have flashed the t989's radio and unlocked my phone so I can try my WIND sim in it. I had the t989, and on the t989 it worked flawlessy. I could send and receive messages, calls and I had internet speeds of up to 6 or 7 mbps (which is good for WIND ). On the I757M, I could send and receive texts and SOMETIMES they would go through, where other times they wouldn't. I could make calls after a short delay, but I could never receive them. I could also connect to data services and while Speedtest claims I had 3 or 4 mbps, it was slower than dialup.
I looked at dsixda's kernel at github.org/dsixda and noticed the binary blobs from Bell (a non-AWS network). I did some reading on RIL's I copied the equivalent radio files from a T-Mobile T989 kernel (TeamChopsticks I think?) but that didn't do a single thing haha.
Anyway, that was all I could really think of besides kernel source as the RIL and the modem were the same. Seeing as people here know their way around the kernel better than I do ( I know Java well and a fair bit of C but I never have time to muck around with kernels and when I do, it normally ends disastrously...), I was wondering if maybe any of you had some ideas on how to make AWS frequencies work better as I like the screen so much more than the blueish T989.
Obviously they have slightly different radios as one is capable of LTE while the other is not, but I've heard users of the I727 Skyrocket LTE have much more success with the T989 modem than I was (I also tried the T879 modem and the Blaze modem, but neither worked any better).
EDIT: Also, according to pdadb, they're all based on the MSM8660 chipset, so they should be able to work similarly
mangelok said:
Hey, I have the SGS2 HD LTE I757M and I was wondering if anyone knows what the substantial difference between the T989's kernel and the I757m's in terms of cellular reception/management as I am having issues getting AWS to work.
I have flashed the t989's radio and unlocked my phone so I can try my WIND sim in it. I had the t989, and on the t989 it worked flawlessy. I could send and receive messages, calls and I had internet speeds of up to 6 or 7 mbps (which is good for WIND ). On the I757M, I could send and receive texts and SOMETIMES they would go through, where other times they wouldn't. I could make calls after a short delay, but I could never receive them. I could also connect to data services and while Speedtest claims I had 3 or 4 mbps, it was slower than dialup.
I looked at dsixda's kernel at github.org/dsixda and noticed the binary blobs from Bell (a non-AWS network). I did some reading on RIL's I copied the equivalent radio files from a T-Mobile T989 kernel (TeamChopsticks I think?) but that didn't do a single thing haha.
Anyway, that was all I could really think of besides kernel source as the RIL and the modem were the same. Seeing as people here know their way around the kernel better than I do ( I know Java well and a fair bit of C but I never have time to muck around with kernels and when I do, it normally ends disastrously...), I was wondering if maybe any of you had some ideas on how to make AWS frequencies work better as I like the screen so much more than the blueish T989.
Obviously they have slightly different radios as one is capable of LTE while the other is not, but I've heard users of the I727 Skyrocket LTE have much more success with the T989 modem than I was (I also tried the T879 modem and the Blaze modem, but neither worked any better).
EDIT: Also, according to pdadb, they're all based on the MSM8660 chipset, so they should be able to work similarly
Click to expand...
Click to collapse
I have the same issue !
I'm using mobilicity and I only have CDN Roaming.
i tried all the modems aswell but no luck.
Does anyone have a solution for this ?
mangelok said:
Hey, I have the SGS2 HD LTE I757M and I was wondering if anyone knows what the substantial difference between the T989's kernel and the I757m's in terms of cellular reception/management as I am having issues getting AWS to work.
I have flashed the t989's radio and unlocked my phone so I can try my WIND sim in it.
Click to expand...
Click to collapse
Do you have the Bell SGS2 HD LTE i757m?
How do you unlock the phone?
proza said:
Do you have the Bell SGS2 HD LTE i757m?
How do you unlock the phone?
Click to expand...
Click to collapse
I unlocked it by purchasing the code on ebay, placing another sim in it and then typing the code.
you may be able to use the free unlock method used by the skyrocket and the hercules though.
as for getting it to work on WIND, I was able to by copying the modem and modem related files from the system folder on the t989. it did not work well so I ended up selling it.

do you think American and European phones will be one in 2013?

the s3 is the same build in europe and america, but because samsung couldnt get lte working with their processor in time, they used a different one in the US. most of you know this. europe is finally starting to get 4g right? (took you long enough), do you think well see the exact same model released (with just maybe different radio bands) in both?
as an american phone user, you either buy the international phone and and get development, or you buy the US one and get monster LTE 50mbps.. i want both. its not just our side that would benefit tho. development wouldnt be split between regions, it could all be shared and collaborated. well im asking if you think itll happen, not convincing you why its a good idea lol..
so do you guys think itll happen?
Most probably yes, samsung was not ready with lte based exynos soc when s3 was launched, hence the variation. If you see note 2 the spec is almost same everywhere
《posted from my beast》
Will the different LTE frequencies still not cause an issue then?
With each carrier having there own model?
Mike Blitz said:
Will the different LTE frequencies still not cause an issue then?
With each carrier having there own model?
Click to expand...
Click to collapse
lol that does raise new problems that didnt exist before.. i dont know what frequencies you guys will use, but i dont think that really matters much.. every carrier will have their own radio im sure. but as long as the rest of the phone is the same, development wont matter.. just as you can flash firmware XXYZ with modem XXAB and there wont be any problems, you could flash SGS4 firmware XXXDA with any number of modems.
its also possible that samsung could release a modem with multi regional support, so all carriers could use it.. but i dont really see this happening.
As well as using different frequencies, the USA uses two completely technologies namely gsm and CDMA.
Maybe in time, the chips used in phones will be small enough to work on all the frequencies/technologies.
S
Sent from my iPad using Tapatalk (how ironic is that eh)

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