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.
Related
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.
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
I've read everywhere that you need to find a modem that works best for you, which I have... I9300XXBLFB modem covers my geographic region according to Samsung-updates... but does this mean I have to use the LFB RIL as well? Or should i download the latest RIL?
davewils55 said:
I've read everywhere that you need to find a modem that works best for you, which I have... I9300XXBLFB modem covers my geographic region according to Samsung-updates... but does this mean I have to use the LFB RIL as well? Or should i download the latest RIL?
Click to expand...
Click to collapse
You must be a previous HTC user. So am I. Over here in the Samsung world, you don't ever have to worry about RILs. They are never mentioned anywhere and I've never seen any downloads for them. One less variable to worry about.
Someone has started posting about RILS in the modem thread and supplied a RILS updater .
Must admit never heard of it before last week .
jje
Hi,
If you paid atention to the RIL you can try getril on the Play Store, compatible with our SIII, I use it.
After some tests, for me and it depends of the network operator / country, a matching / dismatching RIL affects the data speed and the quality reception for the same area.
But it needs some long tests for find a good RIL with a good radio (and not obiously the RIL according to the radio), or at least for me.
For example I use actualy the LG6 radio with the XLFB RIL and it works great for me, better than with the corespondant RIL.
Sent from my GT-I9300 using xda premium
henrybravo said:
You must be a previous HTC user. So am I. Over here in the Samsung world, you don't ever have to worry about RILs. They are never mentioned anywhere and I've never seen any downloads for them. One less variable to worry about.
Click to expand...
Click to collapse
Codeworkx posts RIL updates for SIII
viking37 said:
Hi,
If you paid atention to the RIL you can try getril on the Play Store, compatible with our SIII, I use it.
After some tests, for me and it depends of the network operator / country, a matching / dismatching RIL affects the data speed and the quality reception for the same area.
But it needs some long tests for find a good RIL with a good radio (and not obiously the RIL according to the radio), or at least for me.
For example I use actualy the LG6 radio with the XLFB RIL and it works great for me, better than with the corespondant RIL.
Click to expand...
Click to collapse
Thanks, will give it a try
Interesting, the RIL flashing thing must be more relevant (and necessary at times) on AOSP ROMs. On my S2 and S3, running custom Sammy ROMs no one has ever mentioned anything about flashing RILs. I know in the early stages of CM10 they were having voice issues with some modems, which may have prompted codeworkx to start messing around with the Samsung RILs. This isn't nearly as much of a factor in Sammy ROMs because they usually include a matching modem, and therefore the matching RIL is automatically flashed as part of the ROM.
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.
Okay, so, I've done a fair amount of reading and searching about modems and RILs, including other forums, but I've still yet to find the specific information I'm looking for. (Most of the stuff that I've found relates to the i9100.) So if I missed the relevant post, I apologize, please direct me there.
That said, here's the deal. I've got an i777, which I have unlocked and am currently using on T-Mobile. I've flashed the stable CM 10.1.3 (Android 4.2.2). Its baseband is UCLE5. It's running well. I have few complaints, except for occasional low signal.
I've already seen this thread, with the different modems available: http://forum.xda-developers.com/showthread.php?t=1336958
I lost the link, but I also found a thread, possibly on another forum, where a T-Mobile user reported better performance with baseband UCMD8. I'd like to try it. I think I can manage flashing it on my own via CWM.
However, I've read in a bunch of places that it's also important to have a RIL matching the baseband version. I found a thread that gives a terminal emulator command to find your current RIL version (getprop "gsm.version.ril-impl"), and mine is "Samsung RIL(IPC) v2.0", which is apparently from Gingerbread.
So, my question is this: Should I also change my RIL? If so, 1) where would I get the appropriate RIL for the i777 with CM10.1.3, and 2) how would I install it, preferably without performing another wipe, reset and ROM installation?
Thanks in advance for your help!
NightSteel said:
So, my question is this: Should I also change my RIL? If so, 1) where would I get the appropriate RIL for the i777 with CM10.1.3, and 2) how would I install it, preferably without performing another wipe, reset and ROM installation?
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Click to collapse
You have nothing to worry about - just flash the i777 modem you want via recovery; you don't have to wipe anything, it will work fine. I wouldn't worry too much about RIL; over the two years of changing modems back and forth I've never encountered any problems regarding RIL (except for some wakelocks, but that's more to do with bad/weak signal than anything else).
To be clear, I'd still be happy for input from anyone regarding the i777's RIL, but I did go ahead and flash UCMD8. I've already noticed something new; my phone now seems to drop from H+ to 3G fairly aggressively when I'm not actually using it, then go back to H+ when I do, where since flashing CM10.1.3, it previously connected only at H+ or E. I imagine this is a battery saving measure. I'll have to see how it behaves for a few days.
Thanks for your response SteveMurphy. By the way, what baseband/RIL version do you use, if I may ask?
NightSteel said:
To be clear, I'd still be happy for input from anyone regarding the i777's RIL, but I did go ahead and flash UCMD8. I've already noticed something new; my phone now seems to drop from H+ to 3G fairly aggressively when I'm not actually using it, then go back to H+ when I do, where since flashing CM10.1.3, it previously connected only at H+ or E. I imagine this is a battery saving measure. I'll have to see how it behaves for a few days.
Thanks for your response SteveMurphy. By the way, what baseband/RIL version do you use, if I may ask?
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Click to collapse
I'm on UCMD8,
The reason you're seeing 3G more often is because with the newer roms you have the ability to better control your network modes. For instance, if you want to use Edge you can manually switch to 2G mode. It's possible the older firmwares (GB, ICS...) had this option but I really can't remember.
Galaxy S Backdoor
So it seems my question about RILs was unintentionally timely, as Samsung's RIL for Galaxy S devices contains a backdoor that's been verified with proof of concept.
https://www.fsf.org/blogs/community/replicant-developers-find-and-close-samsung-galaxy-backdoor
http://redmine.replicant.us/projects/replicant/wiki/SamsungGalaxyBackdoor
I'm not sure which version of Samsung's RIL they tested, or whether they tested the I777, but it seems most Galaxy phones are affected.
Hope someone gets to work on this soon.
NightSteel said:
So it seems my question about RILs was unintentionally timely[...]
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Click to collapse
Suspiciously timely, yes.
here's another take on the back-door claim:
http://arstechnica.com/security/201...-of-remote-backdoor-in-samsung-galaxy-phones/
-Cyril
edit: and this: http://www.xda-developers.com/andro...mctr=(not provided)&__utmv=-&__utmk=122317964