(Q) At&t SGS2 and Global SGS2 compatibility - AT&T Samsung Galaxy S II SGH-I777

Can we use some of the mods in the global sgs dev forum? I know we cant use anything that would change the modem but since the phones are very similar what can and what cant we use from the global Dev forum?
Thanks

As best as I understand the big ones to stay away from are modems, kernels, and bootloaders. As long as you don't mess with bootloaders you'll always have download mode (not that bootloaders by definition are incompatible, but 99% of what is done on a phone should not include messing with bootloaders, unnecessary risk for most people)
Just keep in mind using anything from a different phone is a risk that could make you lose all yours files and apps or worse.
People have accidentally flashed international roms and been able to recover, though it can be an uphill battle for some.
Sent from my SAMSUNG-SGH-I777 using XDA App

Hi,
I would like to know if I can change the baseband on my SGH-I777 from UCKH7 to UHKE2??? Currently the phone is like this:
PDA: I777UCKH7
PHONE: I777UCKH
CSC: I777ATTKH7
My goal is to enable CR carrier options on this phone. Is this possible? Please advice.
Thanks in advance
---------- Post added at 11:51 AM ---------- Previous post was at 11:34 AM ----------
gacuna said:
Hi,
I would like to know if I can change the baseband on my SGH-I777 from UCKH7 to UHKE2??? Currently the phone is like this:
PDA: I777UCKH7
PHONE: I777UCKH
CSC: I777ATTKH7
My goal is to enable CR carrier options on this phone. Is this possible? Please advice.
Thanks in advance
Click to expand...
Click to collapse
Basically what I want to know is if changing the baseband the phone would be able to support "video calling" without using a 3rd party app, just by calling. Like the Global/International SG-I9100.
I see my friend's phone has baseband UHKE2, please advice if changing this, it would make any diff.

Pretty sure your modem isn't going to get the result you want.
Sent from my HTC PH39100

So there's no way at all to make video calls with the SGH-I777 like a normal voice call??? Just like the SG-I9100???

I haven't checked out a i9100 at all, nut I do remember er on my i897 captivate when running an i9000 ported rom we would have the call screen with the video button (until a dev for the i897 removed it). I believe it is part of the phone.apk and another .apk that had to be changed.
So I guessing it is the same on the 9100? Maybe ask one of the devs that have ported over a i9100 rom for us. I think DG is using a i9100 rom as well as the Hellraised rom too (I haven't even looked at these roms but I think they are using i9100 roms with some changes).
This would be a really nice feature too in my opinion. Not sure why it wouldn't work for us also. The reason it had to be removed from the i897 Captivate is it didn't have a front facing camera and the i9000 did. So hope you get it figured out.
Sent From My KickAss ATT SGS2 SPORTING CM7

Thanks for the explanation!
But i havent got it yet, so you say i wont be able to make at&t phone work as the international one? Please dont use too much tech words cause im pretty new using android so i get confused

well then you shouldnt be randomly flashing modems... its a good way to get yourself in a very, very deep hole. especially if you dont know how to get out. id suggest doing some research on what modems do... you cant change the modem and get video calling. here is a very brief explanation of what is going on.
everything on your phone is an app. just like windows has .exe android has .apk. the launcher, calendar, phone, update services and everything runs as a .apk. so when you hit the phone symbol on your launcher you are opening up an app. that app is called the phone app and is on your phone as a phone.apk. to get this video calling capabilities you would need to fins a phone.apk that supports it... but ait there's more. the phone.apk is tied into other things like telephony.apk which does stuff. and other apks, and heck een the framework (its hard to describe this one). if this video calling is specific to samsung, which i think it is, you need to have the samsung rom because you cant just take the phone.apk and make it work, it relies on other things specific to the samsung rom.
having said that, you can find a i9000 rom that has it and hellbreak it but that is a lot more complicated than i think a new guy to android can handle.

It may be that there's a dependency between the phone app and the modem.
I have the video calling button since I'm running Hellraised VillainROM but I have never tried it.
Most likely AT&T's network doesn't support it and will block attempts to use it.
If there are any modem or network dependencies it won't work.

Related

[Q] Mixing kernels and modems?

I am no Noob to Android, but am to Samsung phones. This is my first time ever encountering kernels and modems that could be flashed separately. All other Android devices I used had everything together as a single package and did not offer a kernel and modem separately.
That said, I am trying to determine a solution for a frustration of mine. I want the newest Gingerbread 2.3.6 version for my ATT Galaxy S2 (NOT Skyrocket), but every time I check for updates, my phone says that I am up to date already. Yet, there have been three newer firmware versions leaked and I dont know what this means, but I am wondering if ATT is leaving me in the dust or something.
I have tried all three of the leaked updates (UCKJ1, J2, and J4), and although the phone works perfectly fine, all versions give me an impossible to deal with problem when I am in a call with someone. The problem is that no matter who I am talking to, they all complain that they cannot hear me because my voice is randomly fading in and out to the point where they cannot hear me at all. Strangely though, when I am on UCKH7, everyone says that I come in nice and clear and no one ever complains about clarity.
So, I was wondering first, what controls the calling portion of the firmware/
ROM? I was thinking that it was the modem, but when I think of modems, I think of something controlling internet, like 3/4G and wifi.
Second, if it IS the modem that controls the calling, then what would happen if I flashed the UCKJ4 firmware and the UCKH7 modem? Will everything work?
I was thinking that since H7 seems to be the only version that doesnt give me voice problems, then by using its modem with the J4 kernel, I could have the newest firmware, but still have people hear me.
If anyone knowledgeable in this area could help me, that would be ridiculously awesome! I dont want to try this unless I am sure that I wont brick my phone or something.
BTW, the voice problem is not caused by finger over microphone or my or the other party's reception. I have tested this as thoroughly as possible and it is definitely the firmwares for some reason.
1) your modem controls both the calls and data connection.
2) you can flash the stock KH7 modem:
http://forum.xda-developers.com/showthread.php?t=1336958&highlight=UCKH7+modem
you can do this without changing your rom or kernel. Hope that fixes your call issues (sounds like it will).
Modem controls calls and data connection, however the Samsung Noise Reduction feature is in the audio libraries within /system and to some degree in the kernel (sound drivers)
Ok, so the modem does handle calls then. Thats good to know!
For the record though, the noise suppression feature seems to have no affect on this problem of mine. It doesn't matter whether it is on or not :-\
I am CURRENTLY running KH7 modem AND kernel and no problems right now.
Soooooo... What would happen if I flashed the J4 kernel, but the KH7 modem though?
Will things work right (data, wifi, phone calls, system stability, etc)? Will I lose noise suppression?
LOL, thanks for the replies so far, but my questions were only half-answered. (Probably too much text in my OP... sorry!)
Sent from my SAMSUNG-SGH-I777 using XDA App
spexwood said:
Ok, so the modem does handle calls then. Thats good to know!
For the record though, the noise suppression feature seems to have no affect on this problem of mine. It doesn't matter whether it is on or not :-\
I am CURRENTLY running KH7 modem AND kernel and no problems right now.
Soooooo... What would happen if I flashed the J4 kernel, but the KH7 modem though?
Will things work right (data, wifi, phone calls, system stability, etc)? Will I lose noise suppression?
LOL, thanks for the replies so far, but my questions were only half-answered. (Probably too much text in my OP... sorry!)
Sent from my SAMSUNG-SGH-I777 using XDA App
Click to expand...
Click to collapse
Most likely not much - the only case where you're likely to notice a change is if you flash my kernel, which pulled in the I9100's latest sound driver a few days ago.
Please forgive me for not fully understanding all of this.... -_-'
So, it isn't worth it to flash the J4 kernel (in order to get Gingerbread 2.3.6) and the H7 modem (to keep my phone calls clear)?
If I flashed your kernel though, how would it affect my phone?
Will I be at 2.3.6?
Would I flash your kernel, but keep the H7 modem?
Also, can you provide a link to your kernel (to make sure I find the same thing you are talking about)?
Again, forgive me for not understanding right away.
Sent from my SAMSUNG-SGH-I777 using XDA App

[Q] Galaxy S 4G (SGH-T959V) 911 and Fixes/Roms

My girlfriend recently purchased a Samsung Galaxy S 4G (SGH-T959V). I enjoy all the features I get from rooting, etc on my G2. I saw the Gingerbread update from T-Mobile and have installed it for her. I wanted her to be able to have root, remove bloatware and have the lagfix (voodoo, assuming it is still needed) working. As I was getting ready to find her a good ROM this CM 911 dustup happened. It's ok if she keeps the Samsung ROM, my question is where is this 911 "feature" stored? In other words, what can be done to her phone without destroying emergancy calling? I am pretty sure just rooting it is fine. Removing bloatware after rooting should be good also. I believe the lagfix replaces the kernel. If the kernel gets replaced will that break 911 calls? Is anyone working on a stock GB ROM (as officially released Nov 15) that would have root, removed bloat, and anything else safe that keeps 911 working? I would be glad to wipe the phone, root, remove bloat, (lagfix?) myself and post. I just do not know what is safe to play with. Is this just a radio issue, library issue or kernel issue? Any information would be appriciated. I would like to make her android experiance a good one that still allows her to call 911. I have searched the forums and the web but can't seem to nail down a good answer of what can be changed and what must be left alone to allow 911 to work.
911 operators are drunks anyways... here's some proof, provided from a random Google search.
This is the vibrant forum,sgh-t959 not t959v... very different..
From my understanding, cm7 is the only one with the 911 problem (and any rom coming from cm7)
. Stick to samsung roms and your good. Also the 911 thing isnt the end of the world.. you call them, they cant hear you.. hang up and theyll call you back
Sent from a cell tower to the XDA server to you.
younix258 said:
This is the vibrant forum,sgh-t959 not t959v... very different..
Click to expand...
Click to collapse
Ah, since the download for the updater said "Vibrant" (offical from Samsung) and the model number is so close I assumed they were mostly the same. I see now there is a S 4G forum. Sorry for the mix up. I would assume this phone could have the same issues if CM was ported. Currently it is listed as not supported. I'll move to the right forum and dig some more. Sorry for the waste of space. If anyone knows if these are affected by the 911 issue feel free to chime in. Or if a moderator wants to move this to the othe forum feel free.
Thanks
Lol the waste of space is no big deal and your right, id forgotten that they call yours the vibrant 4g. But still the two phones are very different hardwarewise, idk why.
Sent from a cell tower to the XDA server to you.
hi guys, do T959 and t959V have different operating system? Can I use vibrant's rom for t959v 4g ?
thanks
minimalist83 said:
hi guys, do T959 and t959V have different operating system? Can I use vibrant's rom for t959v 4g ?
thanks
Click to expand...
Click to collapse
You cant use vibrant rom. Both phone have different hardware. BTW you know the T959v 4g have Official Gingerbread.

[Q] Baseband Versions

Sorry if this has been asked, but I have not been able to find a solid answer yet. Can I install " [ROM]UCLC2 Official ICS "Leak" I777 (3-27-12)" on my S2 with the baseband version UCKK6 and be alright? I had an incident where I put a kernel that wiped my wifi capabilities a while back and wasn't sure if it was because it contained a different baseband. I'm not sure on which modems/basebands I should stay away from?
Thanks.
ck2323 said:
Sorry if this has been asked, but I have not been able to find a solid answer yet. Can I install " [ROM]UCLC2 Official ICS "Leak" I777 (3-27-12)" on my S2 with the baseband version UCKK6 and be alright? I had an incident where I put a kernel that wiped my wifi capabilities a while back and wasn't sure if it was because it contained a different baseband. I'm not sure on which modems/basebands I should stay away from?
Thanks.
Click to expand...
Click to collapse
Any UC baseband will work on our phone. Baseband ONLY affects cell data and voice.
Entropy512 said:
Any UC baseband will work on our phone. Baseband ONLY affects cell data and voice.
Click to expand...
Click to collapse
Oh I see, Thank you for clarifying!!!
Entropy512 said:
Any UC baseband will work on our phone. Baseband ONLY affects cell data and voice.
Click to expand...
Click to collapse
That would seem to be true, since the modem.bin "image" is really just a mini-kernel and real-time OS (ThreadX I believe) loaded by the modem and only talks to Android via the RIL abstraction layer.
But on the Captivate, when using an i9000 ROM (similar to the use of i9100 ROMs here) you actually had to use an i9000 modem too. In fact the rule generally was, the modem had to match the kernel, as we had separate kernels for i9000 and i897 ROMs. This of course opened up many more options since the international variants inevitably have many more modems available. Point is, on the Hummingbird platform, the modem/kernel (and usually ROM) were somehow interdependent on each other. Maybe due to quirks specific to the RIL in each? Or maybe something else? No idea, and not sure that anyone ever bothered to figure it out. (Why people aren't more intrigued about trying to "hack" the modem binary is beyond me. I don't care if my phone violates the law or gives me cancer as long as I get better reception and data speeds... )
Any ideas as to why this wasn't the case with the i777?
In particular on the Captivate, running a mismatched modem would result in voice calls not working properly, though data would usually work, which isn't all that dissimilar from what happens on the i777 with a mismatched modem/kernel/ROM combo.
Just looking for any solution that would let us run i9100 modems on the i777 in particular since there is no proper way to adjust the bands selected by the modem. Aka, that whole stupid RAT restricted bull**** business that AT&T seem to enforce on the UCXXX modems.
Thanks in advance!
And PS, I'm not kernel developer (though I am studied in C/C++), but if you pointed me in the right direction as to where I might be able to find some useful RIL debug output, I'd be willing to pour through some logs looking for anything interesting.
*bump*
Sent from my SGH-I777 using Tapatalk 2
I think that in the case of the I9000 vs. I897, the modem/CPU audio interface may have been entirely controllable by software.
On I9100 vs. I777, there appears to be some hardware in between we don't have control over. As a result:
An I9100 modem on I777 results in no audio regardless of kernel.
An I9100 kernel on I777 results in no audio regardless of modem. I know this end of things - one of the digital I/O channels is set up very differently on I777. Master instead of slave I2S (or was it the other way around?), 16 kHz sample rate instead of 8, and a few other settings are different.
There might be something about that "in between" block we don't know about and can control with the right knowledge, but right now - there's an unknown black box somewhere and it prevents I9100 modem firmwares from providing call audio.

[Q] can't hear caller & they can't hear me

i bought a used i777 that was advertised to be unlocked, but when i put in my t-mobile (straight talk) sim card to test out, phone was not unlocked so couldn't really test it out. it looked new so i bought it, then called at&t for an unlock code. after i entered code and called someone, i couldn't hear them and they couldn't hear me. phone was running 2.3.6 and after doing alot of research online, i first checked the flash counter (which was zero) then followed 'creepyncrawly' (cnc) thread 'how to prepare phone for return' and flashed the UCKH7-CL503881 stock kernel and system package using odin, then followed 'jack man' thread to upgrade to ics (4.0.3) but still have audio problems.
ok, so why i am i posting this? couple reasons actually. first, if i could ever get the I777_UCKH7_OCD_Root_No_BL.7z file to download before timing out (then having to wait another 30 mins before trying again!) then i would've followed cnc's thread 'How to Flash Custom Binaries Without Ever Incrementing the Flash Counter!!' i'm also thinking of trying entropy512's 'UCKH7/KK6 Return/Unbrick to Stock (or Root)'. also thinking about using the 'AOKP ICS ROM v7.1', but am thinking i am just missing a file or have a bad rom or something simple that is causing my audio problems because i found this in the q&a section for i777 under thread titled 'no audio on phone':
Here is the stock i777 modem (phone) TAR file.
Your audio shall magically return after you flash this:
{ link, but i can't post here because i'm a nooby } <---------- BUT THIS LINK HAS BEEN SEIZED BY THE FEDS!
You will need to flash this in Odin.
Be sure to put this in the PDA slot in Odin.
and although i'm using terms like 'root', 'kernel', rom, etc., i really don't know what the benefits are of rooting, changing rom, etc.
also, the threads referenced above are dated oct 2011 -- almost a year ago and wonder if i should use something more recent.
finally, i'm sure this is gonna sound real stupid, but can someone please tell me where the 'sticky' section is? i see alot of people here say 'i'm sure there's a sticky for this' in the dev section or general section, etc. but am not sure where these stickies can be found.
and yes, i watched the nooby video and know i'm supposed to be brief but wanted to be thorough in describing what i've done and where i'm hungup now before moving forward.
thanks in advance for any insight/assistance with this frustrating condition of my first i777!
Off market purchase can lead to an intimidating amount of Grey area in trouble shooting. I've read of changes in hardware, and boot loaders in a single device over time in production, and off the top of my head, I question the method the seller used to prep the phone for sale. Could have used triangle away for the counter, simply flashed stock rom, and removed root. May have been an incompatible rom. If he said it was unlocked and it wasn't, he either didn't know what he was taking about, or obviously changed something afterwards. You're basically trying to figure out what someone else did wrong, and that's a *****. Were it myself, I'd go with entropy's most recent stock you can find, and if not that, hunt down the potential changes to the production of the phone, and sequentially try stock flashes coinciding with the possible time frames. I expect there's going to be a lot of more helpful advice for you in the future, but I hope these basics might help
Sent from my SGH-I777 using xda premium
The "stickies" are the threads at the top of each section that have a thumbtack icon to the left of the thread title. There are usually 4 to 5 (or more) stickies per section for our phone, and are usually the most important things to remember regarding issues, flashing, etc. They are "stuck" to the top area of each section so people can see/find them easily.
Before doing anything more to your phone u need to spend time reading and understanding what u read. And searching terms you aren't familiar with. I find myself saying this more and more, and it seems redundant. But it's also just common sense. Good luck.
Sent from Team Pirate Headquarters. AKA yer moms basement.
Phalanx7621 said:
Before doing anything more to your phone u need to spend time reading and understanding what u read. And searching terms you aren't familiar with. I find myself saying this more and more, and it seems redundant. But it's also just common sense. Good luck.
Sent from Team Pirate Headquarters. AKA yer moms basement.
Click to expand...
Click to collapse
I agree with Phalanx here - do some in depth reading of the stickies you were pointed to, as that will be your best source of information.
If you are ONLY having audio issues (as in, the phone works fine other than you are not able to hear callers, they are not able to hear you), my first guess as to your issue is that the previous owner flashed a custom kernel with the wrong mic. setup. As you read through the stickies, you will learn about mic-swap vs. non-mic-swap kernels, and when it is appropriate to use each.
It would likely be helpful if you could post the information contained here: menu>system settings>about phone.
Good luck.
removed comments -- didn't use multiple quote feature correctly. will re-post comments
Nice quotes..
Cmoore0965 said:
Were it myself, I'd go with entropy's most recent stock you can find, and if not that, hunt down the potential changes to the production of the phone, and sequentially try stock flashes coinciding with the possible time frames.
Click to expand...
Click to collapse
thanks cmoore. i thought when i flashed to UCKH7-CL503881 stock kernel (return to stock by creepyncrawly) that everything would be returned to original build, but maybe 'everything' isn't. i should have tested out phone before moving on to flash to ics (4.0.3) via kies. guess my thinking was that the le5 build would have addressed 'issues' found over time by those using kh7. i will flash the kh7 again, then test out before moving on from there.
jack man said:
The "stickies" are the threads at the top of each section that have a thumbtack icon to the left of the thread title.
Click to expand...
Click to collapse
thanks jack man. turns out i was reading the stickies in both 'general' and 'q/a' sections. guess i just wanted to make sure i wasn't overlooking some other area. seems like alot of threads display what looks like a square yellow sticky -- the thumbtack icon comment clears up my confusion.
Phalanx7621 said:
Before doing anything more to your phone u need to spend time reading and understanding what u read. And searching terms you aren't familiar with.
Click to expand...
Click to collapse
thanks phalanx. i'm trying to correct these audio probs as soon as possible cuz i bought this phone for a handicapped friend who lives on a tight budget and was paying 35/month for std cricket talk/text service. he doesn't have a tv or computer and can't afford tv or internet service anyways. i convinced him to get an i777 smartphone so he could get news, sports, etc. by moving over to 45/month unlimited service with straight talk (i've been using with my t679 t-mobile with ST service and hope to move up to i777 myself soon) but didn't anticipate someone would screw me over with a problematic phone for $200. not trying to waste anyone's time with this thread or clog up an outstanding website (xda), just trying to rectify phone problems to return it to him fixed soon. i agree i have much to learn (i get confused by different terms that have same meaning) and will hold off on rooting and changing rom for now, just wanted to make sure i didn't need to do certain things first to restore some file that i suspect is missing or corrupt and might be needed in addition to files contained in original kh7 build.
dandrumheller said:
If you are ONLY having audio issues (as in, the phone works fine other than you are not able to hear callers, they are not able to hear you), my first guess as to your issue is that the previous owner flashed a custom kernel with the wrong mic. setup. As you read through the stickies, you will learn about mic-swap vs. non-mic-swap kernels, and when it is appropriate to use each.
It would likely be helpful if you could post the information contained here: menu>system settings>about phone.
Click to expand...
Click to collapse
thanks dandrumheller. all problems are audio related, everything else seems fine. speaker does not work for mp3 files, but headphone jack works. during a call, sometimes putting speakerphone on then off works, and when it does an indicator appears that i can't find in user manual. then (while call is still active) i can hear music from mp3 files w/o headphones, but the audio comes through the phone earpiece. then if i turn speakerphone back on (still during active call) the music comes through regular speaker on bottom/back of phone. once the call terminates however, so does the music (stops coming through speaker) but music can still be heard through headphones. very strange stuff!
current settings (but will be going back to kh7 build shortly) baseband: I777UCLE5, kernel version: 3.0.15-I777UCLE5-CL652575 [email protected] #3, build number: IML74K.CLE5
Multi quote would be your friend in this thread
Raise yer mizzenmast and swab 'er poop deck!
i was thinking the 'mic swap' kernel is the key to audio probs (thanks to dandrumheller's comment) but while researching i stumbled on this comment from 'dayv':
"And if you are using a firmware based on an i777 firmware you don't need the mic swap."
and i'm wondering about when I followed creepyncrawly's thread: "Prepare Your Phone to Return ..." and flashed the UCKH7-CL503881 stock kernel and system package using Odin3 One-Click Downloader, shouldn't that already had the necessary kernel (or some other file) already in the stock KH7 build in order to restore phone back to where audio features work normally?
Or, if i do need some additional 'mic swap' kernel, would i need root status to add it? reason i ask is i am about to flash my phone back to the KH7 build and will use the root version this time if necessary: I777UCKH7_OCD_Root_No_BL
Yes the ucle5 ics u downloaded and flashed had a kernel in it that works fine. However, I'd suggest doing what yer doing right now, flashing back to stock and starting over. If u like stock u can even keep it that way. (gingerbread of curse I mean not jellybean)
Sent from Team Pirate Headquarters.
Phalanx7621 said:
Yes the ucle5 ics u downloaded and flashed had a kernel in it that works fine. However, I'd suggest doing what yer doing right now, flashing back to stock and starting over.
Click to expand...
Click to collapse
thanks again phalanx. that is very helpful to know. i will flash the uckh7-cl503881 again using the one click download method and test again
here is the post from dayv regarding mic swap:
dayv said:
The mic swap kernels are needed for Samsung/miui roms that based on i9100 firmwares - the i9100 hardware and i777 hardware are very similar but not exact matches - thus the software drivers in the kernel for the microphones need to be swapped for our microphones to work properly with i9100 firmwares.
And if you are using a firmware based on an i777 firmware you don't need the mic swap.
Now all you need to figure out is which phone the firmware you are using was based on to know whether or not you need the mic swap version of the kernel.
Click to expand...
Click to collapse
and then he added the following comment:
dayv said:
Oh, and the aosp kernel is needed for cm9 and aokp based firmwares - so if you are running cm9 or aokp ROM you need to choose this version of the kernel in question.
Click to expand...
Click to collapse
Random question, had the phone had the audio issues since you you purchased it? I assumed from your post, that you used the phone to handle unlocking with at&t, but I don't see a specific statement attesting to that fact. My train of thought being, that if showed up like that, hardware could be the culprit. Just a thought. Also if not, and this does sound like a kernel mic issue, there are TAR format siyah kernels used to achieve root, which you might try so as to specifically compare results pertinent only to the mic configuration.
Sent from my SGH i777
Could the in call audio be an APN issue? The op states it is used with straight talk.
adfurgerson said:
Could the in call audio be an APN issue? The op states it is used with straight talk.
Click to expand...
Click to collapse
Nah they have to set up the apns before they can even make calls. Without an apn u wouldn't be able to even connect.
Sent from Team Pirate Headquarters. AKA yer moms basement.
Cmoore0965 said:
Random question, had the phone had the audio issues since you you purchased it?
Click to expand...
Click to collapse
thanks again cmoore. when looking at to purchase this 'unlocked' i777 (craigslist) i tried my straight talk sim card (for t-mobile phone) in the i777 but when powering it up it asked for unlock code, so seller said, "oh, i guess it's not unlocked" so i foolishly assumed everything would be fine cuz it looked new and he said all worked fine. like many others here, i've had plenty of good experiences with cl purchases -- up until now. so i activated the straight talk sim card i bought for $15 (for att phone) and had these audio probs from the start.
it had the uckk6 (2.3.6) gb version so i followed creepyncrawly's thread to return to stock and flashed to uckh7. then i followed jack man's thread to flash to ucle5 using kies. then i phoned att and got unlock code and entered it to test ability to use t-mobile sim card so my friend could see which would be strongest signal for data use at his house and also have ability to test phone using both sim cards thinking maybe one was bad, but audio probs are same regardless of which sim card i use -- i bought this phone for his use and am trying to fix the audio probs before giving it back to him cuz he's never had a smartphone and has limited tech abilities, worse than me if you can imagine that!
so i don't really know if it's h/w or s/w, but obviously am hopeful it's s/w and can be corrected once i figure what file may be bad.
Cmoore0965 said:
Also if not, and this does sound like a kernel mic issue, there are TAR format siyah kernels used to achieve root, which you might try so as to specifically compare results pertinent only to the mic configuration.
Click to expand...
Click to collapse
as you probably already realize, i have only performed flashes above using odin via ocd method and am not confident/savvy enough yet to perform what you are suggesting, but it seems to me that maybe i should flash to the uckh7 version with root though to have ability to do what you suggest i try and then search for that kernel and search for procedures to compare results. since i'm not sure how to do what you are suggesting and only partly comprehend what you think i should try, any additional details how to go about this would be appreciated.

[Q] Issue with Stock Samsung 4.1.2 ROM (I9100XWLSW)

Hi,
Search everywhere and still stuck!
This is issue that I have bee trying to solve on the 'android-rsap' forum, but am completely stuck, so by posting here I am hoping that someone can shed some light on what is going on.
Link: forum.android-rsap.com/viewtopic.php?f=32&t=871
In short, the device is a Samsung Galaxy 2 (XEU), and the bluetooth rsap functionality works fine with 4.0.4 (I9100XWLPT) but when I upgrade to 4.1.2 (I9100XWLSW) it no longer works at all. What is most weird is that it seems to be only my handset that is affected, it does not seem to be a universal issue. :roll eyes: What could be specific to my handset that stops this functionality working as it should?
I have been going back to 4.0.4 and upgraded to 4.1.2. many times now, via OTA, Kies and Odin, same result every time, sadly. 4.0.4 works every time, 4.1.2 has never worked with rsap and my car
What could be specific to my handset that stops this functionality working as it should? I have tried root'ing the handset to do more testing and to try the rsap app from Google App Store, but that has the same issue. Could some of the radio software be wrong? or?
Picture shows Kies upgrade screen and the 4.0.4 and 4.1.2 versions I am getting.
Any hints would be appreciated.
Regards,
J.
Try another JB ROM, and stop going back to 4.0.4.
Sent from the little guy
gastonw said:
Try another JB ROM, and stop going back to 4.0.4.
Sent from the little guy
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Ok, so with an XEU handset - what version would you recommend?
realist42 said:
Ok, so with an XEU handset - what version would you recommend?
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Click to collapse
Ok, So I am a beginner with hacking my Samsung phone, this is mainly as I use them as phones, and want to rely on them. Before I had encountered this issue I had not even rooted my phone before.
I would really appreciate some help with this, this is an issue what is well beyond me, as in my view, what I have done ought to have fixed it. If there was a firmware issue, my reload should have but it back to 'factory default' .
As for going back to 4.0.4, well it works, so it must be a baseline for something, it proves the radio and bluetooth stack is capable of doing the right thing.
I think I need some pointer of getting my had set back to completely stock PDA / CSC / PIT, but don't know how to do it, or where to get the parts, to date got the firmwares from SamMobile... Any help would be appreciated.
Regards,
J.
..
realist42 said:
Ok, So I am a beginner with hacking my Samsung phone, this is mainly as I use them as phones, and want to rely on them. Before I had encountered this issue I had not even rooted my phone before.
I would really appreciate some help with this, this is an issue what is well beyond me, as in my view, what I have done ought to have fixed it. If there was a firmware issue, my reload should have but it back to 'factory default' .
As for going back to 4.0.4, well it works, so it must be a baseline for something, it proves the radio and bluetooth stack is capable of doing the right thing.
I think I need some pointer of getting my had set back to completely stock PDA / CSC / PIT, but don't know how to do it, or where to get the parts, to date got the firmwares from SamMobile... Any help would be appreciated.
Regards,
J.
Click to expand...
Click to collapse
The firmware specified by Kies (the one in the picture you posted) is your region specific firmware, just search and download the firmware from sammobile and flash it if you want to go back to stock, gastonw was suggesting you to try a different version of jb like xwlss, xwlsn, xwlsw, etc... If it's common to other jb versions then probably Samsung removed proper support for it, it's not the first time they have done it, like for example they completely removed action shot feature in stock camera in jb(this is there in ics).
Edit:If this problem is specific only for your s2, you might have to try flashing different firmware.
Sent from my GT-P6200 using xda app-developers app
king_below_my_lord said:
The firmware specified by Kies (the one in the picture you posted) is your region specific firmware, just search and download the firmware from sammobile and flash it if you want to go back to stock, gastonw was suggesting you to try a different version of jb like xwlss, xwlsn, xwlsw, etc... If it's common to other jb versions then probably Samsung removed proper support for it, it's not the first time they have done it, like for example they completely removed action shot feature in stock camera in jb(this is there in ics).
Edit:If this problem is specific only for your s2, you might have to try flashing different firmware.
Sent from my GT-P6200 using xda app-developers app
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Thanks,
I have tried a completely different firmware, and it behaved just the same. The odd thing is that there are no other reports of users having issues with the rsap application on a S2 with JB, so the support is on there (the app provides the stack if it is missing), but the app does not work either so it looks like it is my handset that has issues. I just can't figure out what to do to fix it. There is one thing that could be at play here, I did have a flailed upgrade from GB to ICS (4.0.3) where vibrate stopped working. It was sent to Samsung for repair, not sure what they did but I suspect that the just flashed the phone with a new version of the same firmware. Could there be something there that still causes issues?
Thanks.
J.
realist42 said:
Thanks,
I have tried a completely different firmware, and it behaved just the same. The odd thing is that there are no other reports of users having issues with the rsap application on a S2 with JB, so the support is on there (the app provides the stack if it is missing), but the app does not work either so it looks like it is my handset that has issues. I just can't figure out what to do to fix it. There is one thing that could be at play here, I did have a flailed upgrade from GB to ICS (4.0.3) where vibrate stopped working. It was sent to Samsung for repair, not sure what they did but I suspect that the just flashed the phone with a new version of the same firmware. Could there be something there that still causes issues?
Thanks.
J.
Click to expand...
Click to collapse
Hmm try generating a logcat when you try to use that feature and post it here, let's see whether some useful report is generated , please generate it as quickly as you can after you try activating/using that feature.
Sent from my GT-P6200 using xda app-developers app
Repporte Redan
king_below_my_lord said:
Hmm try generating a logcat when you try to use that feature and post it here, let's see whether some useful report is generated , please generate it as quickly as you can after you try activating/using that feature.
Sent from my GT-P6200 using xda app-developers app
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HI,
Took a little time to get the phone back in order and then to go an do the trace.
Not knowing what I am really looking for, but it strikes me that the bluetooth stack looks to just be giving up...
Regards,
J.
Hi all,
Well, today I managers to briefly borrow another S2 handset with JB on it. This other handset has the same issues that I have, so this must be something in the packaging of the Bluetooth that Samsung did - but I am guessing here.
Any clues would be appreciated, although I think I am fighting a loosing battle here... (works with an S3, so I should go and upgrade! at least chapter now that there is the S4 - but I like the form factor of the S2 better)
Regards,
J
I can't find anything that can cause a reasonable problem in your logcat, since you tried it out with an other GT-I9100 running JB and reproduced the problem, my guess is as good as yours.
Sent from my GT-I9100 using xda app-developers app
king_below_my_lord said:
I can't find anything that can cause a reasonable problem in your logcat, since you tried it out with an other GT-I9100 running JB and reproduced the problem, my guess is as good as yours.
Sent from my GT-I9100 using xda app-developers app
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Well, thanks for looking anyway...
My thinking on this is now that as it works with newer cars and only the older ones that now have issues, it must be a version issue, i.e. the version of the bluetooth stack is not the one it should be. It would be interesting to know if there is a difference in the version of the bluetooth stack and the rsap daemon between the S3 (which works on JB) and the S2 (which does not). Would that tell me anything interesting?
Regards,
J.
Your issue is directly related to 4.1.2 (and newer) versions of Android having changes to what's known as a2dp, or Advanced Audio Distribution Profile. Supposedly, these failings with Bluetooth connectivity of our blessed i9100 are fixed in Android 4.2.2, but unfortunately this version has not yet been released for it (and before anyone says otherwise, I dare them to show me where I can get the ridgey didge true blue real deal Jellybean 4.2.2 for the i9100, especially when sammobiles - the number one place for Samsung firmwares - don't have it for any country on the planet)
djshotty said:
Your issue is directly related to 4.1.2 (and newer) versions of Android having changes to what's known as a2dp, or Advanced Audio Distribution Profile. Supposedly, these failings with Bluetooth connectivity of our blessed i9100 are fixed in Android 4.2.2, but unfortunately this version has not yet been released for it (and before anyone says otherwise, I dare them to show me where I can get the ridgey didge true blue real deal Jellybean 4.2.2 for the i9100, especially when sammobiles - the number one place for Samsung firmwares - don't have it for any country on the planet)
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HI,
I was not aware of this, and are you saying this is specific to the S2, so the fact that is works with an S3 on 4.1.2 is irrelevant?
J.
well, I've been researching this since 4.1.2 came out, and it isn't an issue only experienced here in Australia. Google is a great resource, go for a surf and you'll find out more...
djshotty said:
well, I've been researching this since 4.1.2 came out, and it isn't an issue only experienced here in Australia. Google is a great resource, go for a surf and you'll find out more...
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Click to collapse
Well, my issues are with specifically with rsap, not really A2DP, but if it affects the whole stack, this could be an issue.
To illustrate: I have 2 cars, one older, one newer. With the newer car all is well, and it works at is should (as far as I know) The older car was working pretty much with out issues on 4.0.4, but refuses to work with 4.1.2. Both cars rely on rsap.
Not sure this helps, just wanted to illustrate the problem that I am trying to solve.
Regards,
J.
Have a look at what people are talking about in a Google discussion group, about this very issue...
Code:
http://code.google.com/p/android/issues/detail?id=41628
djshotty said:
Have a look at what people are talking about in a Google discussion group, about this very issue...
Code:
http://code.google.com/p/android/issues/detail?id=41628
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Click to collapse
Maybe I am overly cautious here, but in my case it works just as it should with an S3, no issues at all, for me it is the S2 with JB that has the issue. And the functionality that does not work does not go near the A2DP libraries as the phone becomes a bluetooth SIM card for the car to access (which is rsap)
There must be others out there that also have this issue?!?
realist42 said:
Maybe I am overly cautious here, but in my case it works just as it should with an S3, no issues at all, for me it is the S2 with JB that has the issue. And the functionality that does not work does not go near the A2DP libraries as the phone becomes a bluetooth SIM card for the car to access (which is rsap)
There must be others out there that also have this issue?!?
Click to expand...
Click to collapse
That's why I suggested you look at the forum I provided the link for, there are plenty with the 'Phone calls via Bluetooth into car stereo' issue, including myself...

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