Is it safe to change a GT-I9100T rom to any custom rom ? - Galaxy S II Q&A, Help & Troubleshooting

Hi all,
I have SGS2 GT-I9100T and I wonder if I can change its rom to a custom rom without worries ?
Thanks

I have a GT-i9100M and have rooted it and flashed a few kernels to it no problems. I did try to install VillianROM and got a boot loop. But after I went over the steps I figured I did wipe properly, but you can definitely root and flash kernels for the GT-i9100 on your phone just use the ones that fit (KE1, KE2, KG1, KG2, etc.) for your phone. I will try flashing Liten'ing ROM once it's bugs are fixed, looks like a really easy flash to the phone.
Play around with it, if you try to flash VillianROM even if it's not for you you will gets ClockworkMod with it to backup and restore which restored my stock rom perfectly and easily (my first root and custom rom ever).
BTW, is GT-i9100T the US version of the phone? I just got the GT-i9100M (Canada) and find it's lacking support that the GT-i9100 version get. I'm wondering if there's a way to get GT-i9100 supported games and apps to work on these phones or if I'll just have to wait for them to be supported..?

My GT-I9100T is the Australian version. A friend of mine tried to change the rom (I'm not sure to which one of the customs), and it worked for him, the GT-I9100T on the boot screen changed to GT-I9100 (without the T) and he says that for now everything work flawlessly. So I guess there is nothing to worry about.
Thanks.

liamR said:
My GT-I9100T is the Australian version. A friend of mine tried to change the rom (I'm not sure to which one of the customs), and it worked for him, the GT-I9100T on the boot screen changed to GT-I9100 (without the T)
Click to expand...
Click to collapse
CF-Root does the same thing. Must be in the kernel.

Each and every ROM, be it a Stock or Custom has some bugs in it. As long as you are using a Custom ROM from a recognized dev you are good to go.
I am not a fan of Custom ROM's anyway, and never use them
Regards.

Do you think that the T in I9100T is just a matter of karnel and not a different hardware ?
I found some info on the T model and it suppose to be with a better reception and less radiation on the 850 band. Could it be just karnel tuning ?
I'm pleased with my rom, but I have to remove some of the carrier garbage.

try villianROM 2.1 it's pretty awesome haven't faced any issues

liamR said:
Do you think that the T in I9100T is just a matter of karnel and not a different hardware ?
I found some info on the T model and it suppose to be with a better reception and less radiation on the 850 band. Could it be just karnel tuning ?
I'm pleased with my rom, but I have to remove some of the carrier garbage.
Click to expand...
Click to collapse
Do a search next time. Thanks.
But to answer your question (this time), i9100T is different in the sense that it has slightly different hardware (the radio/modem/phone). It has lesser radiation. There however shouldn't be any problems flashing any of the i9100 roms as I've been doing so since I got my i9100T.

Related

[Q] Help me select ROMS

hello all,
Before I being, i searched a bit in this forum and in web. But the questions i have still are not answered.
I on KE2 stock ROM. i have an unbranded SGSII. I have rooted using steps mentioned here http://forum.xda-developers.com/showthread.php?t=1125414
I want to install any of the custom Roms or the newer ROMS mainly because the battery usage sucks. with some hour music and calls battery get drained easily.
I dont mind updating to latest stock ROM also as long as it solves the problem.
Kies dose not offer me an upgrade and its also grayed out for some reason
Here is my SGSII specs
Code:
Product Code: GT-I9100LKADBT (From RegEdit)
PDA: I9100XWKE2
Phone: I9100XXKDJ
CSC: I9100OXXKE2
Baseband: I9100XXKDJ
If I have some problem, I want to revert back to Stock rom before giving it to Samsung. I have also ordered a USB Jig. It should be on the way now. So i can reset the counter as well.
Before flashing, I want to know what all i should do. Is it just fine If i flash the firmware file? Also in Samfirmware i see something called pit files.
can anyone help me in flashing the correct rom?
thank you
All Custom ROM's give detailed installation instructions in the first couple of posts.
For what it's worth, having tried a number of different ROM's, VillainRom 1.4 has the best battery for me. 2 days with moderate use.
+ Villian rom but read and understand the instructions before you start .
jje
Cognition S2 is a good rom, full instructions for flashing.
If you look in the android development section, theres also a thread with all stock firmwares, kernals and tutorials for flashing
thank you all.
I was wondering about how to revert back in case of some problem. Also do I need to take care something about the baseband etc?
I am kind of new so thats what makes me tensed! I dont want to screw up the mobile.
Don't worry, once you have USB jib, you can reset Odin flash counter and this is a safe way to rescue you in case of brick.
In terms of baseband, ke4 or kf2 are the best ones. Kf2 kernel + kf2 base band is a good combination. You can try many ones and choose by yourself.
On xda, there are all stock firmware to rollback if needed.
Take a look at the stock rom and branded roms post in Dev section find your phone and download a copy of the rom.
That can be flashed back via Odin to original state wiping any root and stock roms .
jje
How about ROM Manager ? i read that It can install ROMS over air
http://www.androlib.com/android.application.com-koushikdutta-rommanager-nptD.aspx
Don't use that as far as know. My kernel wasn't supported and it took me days before my recovery mode was working as I wanted. Maybe it works with other kernels, but with my bad experience thus far I don't install that again.
Sent from my GT-I9100 using XDA App
galaxyII said:
How about ROM Manager ? i read that It can install ROMS over air
http://www.androlib.com/android.application.com-koushikdutta-rommanager-nptD.aspx
Click to expand...
Click to collapse
Please dont install rom manager. Its not fully compatible with the sgs2. Use it, and youll be back here asking for advice on how to fix another mess.
Sent from my GT-P1000 using XDA Premium App
stoney73 said:
Please dont install rom manager. Its not fully compatible with the sgs2. Use it, and youll be back here asking for advice on how to fix another mess.
Sent from my GT-P1000 using XDA Premium App
Click to expand...
Click to collapse
Thanks. Then i will not
Installing rom manager is not an issue... Very few custom rom are compatible with this. Afaik Cognition rom is one of them.
bgn9000 said:
Installing rom manager is not an issue... Very few custom rom are compatible with this. Afaik Cognition rom is one of them.
Click to expand...
Click to collapse
You think I can install ROMS with this? no more Odin?
No this is a little bit more complicated. You need a rom compatible with this like cognition seemed to add. The main idea is to have a rom compatible with rom manager and this will allow you to change to another rom compatible with this. Unfortunately, there are not so many custom rom... Perhaps sicopat's one?
I justed wanted to say that rom manager is not dangerous to install and even to launch.
OK Thank you,
But I am still confused If i need to update the modem etc. Let me do some more search
You can upgrade modem version by Odin flash mode separately to the rest.
http://forum.xda-developers.com/showthread.php?t=1131950
Just download a modem.bin file or gets it from a complete firmware by unzip.
Put modem.bin into phone area of Odin and start accordingly of normal flash processing.
Thanks bgn9000
MY whole worry is whether to update modem or not. I dont want to mess with my phone as i think there is no downgrade.
Looks like I have to invest more time in understanding this flashing

[Q] Root with what for my UGKG2? Big newbiness confusion... Yes I've searched lots.

I just want to root my S2 but don't want to encounter any glitches and issues that some people seem to be having with these different Kernels. My stock Kernel is UGKG2.
Bell Canada Galaxy S2 Released July 21st 2011
Model Number GT-I9100M
Android Version 2.3.3
Baseband I9100MUGkG2
Kernel version [email protected] #2
Build Number GINGERBREAD.UGKG2
Unlocked from Bell and using on Rogers.
It seems the 3 different KG2 Kernels that are currently available are:
CF-Root-SGS2_ZS_OZS_KG2-v4.1-CWM4.zip
CF-Root-SGS2_JP_XSG_KG2-v4.1-CWM4.zip
CF-Root-SGS2_XX_OXA_KG2-v4.1-CWM4.zip
What one should I use? I don't want to experience network issues or any weird glitches. Will there be a stock UGKG2 coming out in the near future that I should just wait for?
Am I even asking the right question? Please excuse my newbiness. I've been reading through hundreds of posts and it's just making me more confused. I've tried SuperOneClick but it hangs at Step 5.
I'm not sure I understand this whole rooting thing. From what I gather, to root you have to use a different Kernel. And it's that Kernel that is giving you root privilege? Yet I see people saying something about CF Root. I think I'm way off somewhere...
Thanks.
Ok, let me start this off by explaining something.....
The rom letter versions are actually based upon 5 letters, not 3. There are several variants of KG2. Basically, the Samsung naming convention is as follows:
Model name: I9100M
Provider/Area: UG (Bell/Virgin/Sasktel)
Rom Version: KG2
Now, the rom version can get broken down into each letter as well...
K = 2011
G = July
2 = 2nd version that month.
All area's roms are developed completely separate from each other...
Ours is UGKG2. Which is unavailable for download from the Samsung servers, so we're not able to actually get back to stock, or make any kind of custom firmwares/kernels based upon it.
All the other ones, including ZS, JP, and XX are completely different roms and kernels than what we have on our Bell phones.
The KG2 that either of those 3 kernels are based on are either 2.3.4 roms or different 2.3.3 roms. So, matching that is no different than installing a KG1 or KG3 or any KF* CF-Root kernels. ChainFire has not made a CF-Root based upon UGKG2 yet, so no matter what one you install, it's not based upon our rom, meaning you can basically install ANY CF-Root Kernel and as long as your phone still works with it, it doesn't matter. All the roms are completely different and the naming convention has nothing to do with each other unless all 5 letters/numbers match up.
Personally, I'm waiting for our stock rom to be released for warranty return purposes before I flash one of the root kernels.
However, if you're willing to take the chance, I suggest installing a 2.3.3 kernel as that's the UGKG2 Android version.
Sent from my GT-I9100M using XDA App
Thank you Electroz.
I'll wait and keep an eye out for ChainFire to come out with a stock one for us then!
Another thing that confuses me is this:
People are talking about using one of the Kernels to root and then reverting back to their backed up Kernel while still maintaining root? Is that possible?
ie.
I pick a 2.3.3 KG2 Kernel, root and then use a backup of my UGKG2 again? Then all is good? And I'm rooted? Probably not eh?
That works in theory. However there is no way to root without flashing over our stock kernel. So until our firmware is available on the Samsung servers, we cannot go back to the stock UGKG2 kernel if we overwrite it with a "root" kernel.
Sent from my GT-I9100M using XDA App
I'm so glad I found this thread. My SII is my first Android device and I was looking on rooting it but I'd rather wait for a way to revert back to stock kernel before I do so. Can others who have rooted their phones please tell what kernel they have used?
Flash CWM kernel and root using SuperOneClick, or flash Dark Core 1.4. That's what I used on mine. Downside is the original kernel hasn't popped up in the net yet, so there's no going back til it does.
If you need to get rid of the yellow triangle you'll need to use the download mode jig to wipe the flash history.
Sent from my GT-I9100 using Tapatalk
How do i unlock this device?
serioussam2004 said:
How do i unlock this device?
Click to expand...
Click to collapse
I used this app with success. https://market.android.com/details?id=com.helroz.galaxysunlock&feature=search_result
Good info thanks mate
Sent from my GT-I9100 using XDA Premium App
If you can live with the yellow triangle (or can jump through a few hoops to remove it) then just flash one of the custom kernels. I'm using Niphetamine and it's been spot-on.
I just registered on this site to freaking thank you Electroz.
Your post answered pretty much all of my questions.
Wow. So did I! I'd like to add one question though. What brought me here is that I have HORRIBLE Battery life with my SG2. Had it for 1 week, and I'm usually down to 40% by lunch time. And that's with what I'd consider light to moderate use. There's definetly something wrong, and I was thinking that it was the firmware version that I had.
Probably wrong thread for battery life question, but it is somewhat related to the firmware... so can it be that, or could I have a defective battery?
I also have a Bell SGS2 with Kernel UGKG2.
Loaded an insecure Kernel and I rooted it.
Unlocked it with Galaxy S unlock app. (The Galaxy S2 unlock app didn't find the code)
Used it for 2 days on Fido's network with the insecure kernel. Battery life was horrible. It'd be completely drained by 4-5pm. (about 8-10 minutes calls, about 30 minutes internet, about 30 txt messages) Yellow triangle was there.
I also couldn't use Kies from PC. It wouldn't recognize my phone.
So, I re-flashed with stock XXKG2 kernel since ours (UGKG2) is no where to be found. I know it's not the same, but at least, it's the same build. Insecure kernel is an old build (with all those problems that are now corrected with more recent builds).
After flashing with XXKG2...Triangle gone.
Battery life is greatly improved from insecure kernel. Same usage, still have about 15-20% when it's time to sleep and recharge.
I can also connect to Kies on PC now.
I think it's the best solution for now for the people like me who absolutely need root to unlock asap.
I'll flash the stock UGKG2 once it's out.
EDIT:
By the way, re-flashing to a stock kernel after rooting (in my case XXKG2) doesn't remove root.
Just flashed my buddy's i9100m with CF-Root XXUG2 kernel and it booted with a yellow triangle in boot screen, and went into the system
I guess it worked as I can see SU on it.
thats a great explanation on the first post thanks alot, i was wondering if anyone here could make a backup with clockworkmod from a rooted galaxy s2 that still has the UGKG2 on it and post it so i could get access to the baseband file and use it as a restore, that would be very appreciated!!!
im getting the worst reception, cant even send text messages outdoors!
and forget about data.... all i can use is wifi
SL.
killer23d said:
Just flashed my buddy's i9100m with CF-Root XXUG2 kernel and it booted with a yellow triangle in boot screen, and went into the system
I guess it worked as I can see SU on it.
Click to expand...
Click to collapse
could u or your friend post a backup so that i can restore from it?
I have also flashed my phone with XXKG2 Kernal, and so far so good. I am also using Canada's version of the phone. I wished that I would have read the forums better before I did as I failed to make a backup. Seeing as this is my first Andriod phone I didnt know any better. With the exception of some GPS lock issues everything has been great.
Keep up the good work XDA devs, you guys rock! I have really learned alot creeping these forums the past few days.
Thanks from Canada,
Eahaih
Sent from my GT-I9100M using XDA Premium App
KayvinM said:
I used this app with success. https://market.android.com/details?id=com.helroz.galaxysunlock&feature=search_result
Click to expand...
Click to collapse
Bro I just found this thread by accident and saw your post about unlock tried it and it works Thank a lot
Confused...
I'm not a n00b but also can't call myself a pro, but I was hoping that since it's related to this thread in theory, I could get a heads up or something.
I haven't been able to figure out how to update my S2 at all, following stock build and no hacks at all on my phone and it is not rooted.
M#: GT-I9100M
vers: 2.3.3
baseband: I9100MUGKG2
kernel: 2.6.35.7-I9100MUGKG2-CL371789 [email protected] #2
Build: GINGERBREAD.UGKG2
any help would be great
Domochu said:
I also have a Bell SGS2 with Kernel UGKG2.
Loaded an insecure Kernel and I rooted it.
Unlocked it with Galaxy S unlock app. (The Galaxy S2 unlock app didn't find the code)
Used it for 2 days on Fido's network with the insecure kernel. Battery life was horrible. It'd be completely drained by 4-5pm. (about 8-10 minutes calls, about 30 minutes internet, about 30 txt messages) Yellow triangle was there.
I also couldn't use Kies from PC. It wouldn't recognize my phone.
So, I re-flashed with stock XXKG2 kernel since ours (UGKG2) is no where to be found. I know it's not the same, but at least, it's the same build. Insecure kernel is an old build (with all those problems that are now corrected with more recent builds).
After flashing with XXKG2...Triangle gone.
Battery life is greatly improved from insecure kernel. Same usage, still have about 15-20% when it's time to sleep and recharge.
I can also connect to Kies on PC now.
I think it's the best solution for now for the people like me who absolutely need root to unlock asap.
I'll flash the stock UGKG2 once it's out.
EDIT:
By the way, re-flashing to a stock kernel after rooting (in my case XXKG2) doesn't remove root.
Click to expand...
Click to collapse
I don't know about on the SGS2 yet as I just bought the phone about 2 hours ago. But I just came from the SGS Captivate, and I had these same kind of issues with battery on CM7.1 custom ROM.
I found that flashing a new modem greatly improved my battery life, I went from being completely dead by about supper time (with light-moderate usage), to over a full day usage.
On that note though with the custom ROMS they are missing drivers to turn apps off supposedly so I don't know if that will come into play, but it would be something to look into if the issue still persists.

[Q] S5830l firmware and custom roms

Hi,
I have a SGA, the ''L'' one, which works with a different gingerbread version (KP8) than the European one. The question is, can I install any custom rom? I'm somewhat confused about that, because I've read in the installation instructions for each of them that I need to have KPH or KPN previously installed in my ace, but if I do that the 3g won't work, SOD appears, etc Is there a way to have a custom rom and at the same time not killing my data plan?
Sorry for my English.
what i do is flash the L modem after i install a cstom rom to get 3g, but the sod is still there...
So there is no real solution? How bad. Thanks for the help.
but if I do that the 3g won't work, SOD appears
Click to expand...
Click to collapse
Have you really ever tried flashing firmwares and installing roms. You need to experience it yourself and see if it works for you. I don't experience SODs and my data plan is stable. But I'm not using the L version. So I guess, you should really try it out.

Re-flash stock firmware

hello everyone.
I'm using andyx firmware v15 and taking my attention that battery dies too fast and phone feels lagging at times.
So i want to go back to the stock firmware and use a rooted stock firmware. but i have a couple of questions:
1) i dont really know which pda or country's firmware i have to use.bought my phone from poland and living in turkey now. can i find out which version the phone originally came with from the box or anywhere else?
if using any firmware wont matter, is there any particular one i should use? maybe getting the newest updates before the ones?
2) is the version 4.0.4 safe to use? my friend suggested me to use that one but i'm a little pissed off after reading the brick stories about it.
3) also someone else told me to flash stock firmware then go for the siyah kernel. whats the benefit for that?
burning_afd said:
hello everyone.
I'm using andyx firmware v15 and taking my attention that battery dies too fast and phone feels lagging at times.
So i want to go back to the stock firmware and use a rooted stock firmware. but i have a couple of questions:
1) i dont really know which pda or country's firmware i have to use.bought my phone from poland and living in turkey now. can i find out which version the phone originally came with from the box or anywhere else?
if using any firmware wont matter, is there any particular one i should use? maybe getting the newest updates before the ones?
2) is the version 4.0.4 safe to use? my friend suggested me to use that one but i'm a little pissed off after reading the brick stories about it.
3) also someone else told me to flash stock firmware then go for the siyah kernel. whats the benefit for that?
Click to expand...
Click to collapse
1) there are no particular firmwares. Try out different firmwares on whatever suits you best. I suggest you go up for Gingerbread because of its stability and battery life. But if you want to be updated on the trending things, go for ICS.
2) i suggest you go for custom roms with 4.0.4 as a basis.
3) siyah kernel MAY be a suitable kernel for you, but then again, it could be different. Try out different kernels that best suits you
-Try the search button for further info so you could get a variety of comments from users. Happy flashing
Sent from my GT-I9100 using xda premium
saywhatt said:
1) there are no particular firmwares. Try out different firmwares on whatever suits you best. I suggest you go up for Gingerbread because of its stability and battery life. But if you want to be updated on the trending things, go for ICS.
2) i suggest you go for custom roms with 4.0.4 as a basis.
3) siyah kernel MAY be a suitable kernel for you, but then again, it could be different. Try out different kernels that best suits you
-Try the search button for further info so you could get a variety of comments from users. Happy flashing
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
thanks
but i think i couldnt explain the first question. what i'm asking is which country's firmware should i install for my phone?
turkish, poland or another country's?
burning_afd said:
hello everyone.
I'm using andyx firmware v15 and taking my attention that battery dies too fast and phone feels lagging at times.
So i want to go back to the stock firmware and use a rooted stock firmware. but i have a couple of questions:
1) i dont really know which pda or country's firmware i have to use.bought my phone from poland and living in turkey now. can i find out which version the phone originally came with from the box or anywhere else?
if using any firmware wont matter, is there any particular one i should use? maybe getting the newest updates before the ones?
2) is the version 4.0.4 safe to use? my friend suggested me to use that one but i'm a little pissed off after reading the brick stories about it.
3) also someone else told me to flash stock firmware then go for the siyah kernel. whats the benefit for that?
Click to expand...
Click to collapse
Use CheckFus to find the latest firmware for your phone and flash it with ODIN.
To root your phone just do some reading. There are quite a few methods described here, some are easy, some are more complicated. In the end choose one that corresponds to your needs and skills.
Ive just done what you were asking for similar reasons. I went on to samfirmware site and picked latest and safest ROM. Then on to chainfires thread for the insecure kernel to root my S2. (thanks to chainfire) No a difficult task just read before flasing and make necessary back ups. All tbe best.
Sent from my GT-I9100 using xda app-developers app

[Q] Reception / antenna problems (GetRIL)

hello fellow xdas
while back i had gotten my hands dirty with the CM10 project as i just couldn't wait for the official update! i learned quickly that i had serious problems with antenna/reception. i tried carious base bands (as recommended on forums) using GetRil/flash.Odin. this didnt seem to help, even though i would get better reception, my signal was unstable. In the process i tried other roms like JellyBam and had the same issue.
As this is my main phone and i do actually need to call with it, i went back to the stock rom i downloaded. but surprisingly i still have the same issue! GetRil also shows that i have incompatible RIL/baseband. this is what it shows:
RIL: I9100NELP2; I9100XXKI4
Baseband: I9100XXLPQ
FYI: i am located in the Netherlands and use T-mobile network.
so have i installed the wrong ROM or done something wrong in the process... ? does anyone have any experience with this? i much rather have CM10 but only if i can get to call normally once again?
thanks
ozeeo said:
hello fellow xdas
while back i had gotten my hands dirty with the CM10 project as i just couldn't wait for the official update! i learned quickly that i had serious problems with antenna/reception. i tried carious base bands (as recommended on forums) using GetRil/flash.Odin. this didnt seem to help, even though i would get better reception, my signal was unstable. In the process i tried other roms like JellyBam and had the same issue.
As this is my main phone and i do actually need to call with it, i went back to the stock rom i downloaded. but surprisingly i still have the same issue! GetRil also shows that i have incompatible RIL/baseband. this is what it shows:
RIL: I9100NELP2; I9100XXKI4
Baseband: I9100XXLPQ
FYI: i am located in the Netherlands and use T-mobile network.
so have i installed the wrong ROM or done something wrong in the process... ? does anyone have any experience with this? i much rather have CM10 but only if i can get to call normally once again?
thanks
Click to expand...
Click to collapse
Use either of the 2 links below to download either the NELP2 modem of the XXKI4 modem, and them flash them onto your phone via Recovery Mode. That should resolved your incompatible RIL issue.
[REF] Modem+RIL CWM Installers
[REF] Galaxy S 2 Shipped Modem Collection
---------- Post added at 11:55 AM ---------- Previous post was at 11:46 AM ----------
OR .... use the link below to find and reflash the entire correct firmware for your region, which should flash the correct modem and RIL along with it.
[ROM+Guide] Official i9100 Firmwares LPE/Q/7/2/F/S/4/7/G/9/W/D/F Download
zee54 said:
Use either of the 2 links below to download either the NELP2 modem of the XXKI4 modem, and them flash them onto your phone via Recovery Mode. That should resolved your incompatible RIL issue.
[REF] Modem+RIL CWM Installers
[REF] Galaxy S 2 Shipped Modem Collection
---------- Post added at 11:55 AM ---------- Previous post was at 11:46 AM ----------
OR .... use the link below to find and reflash the entire correct firmware for your region, which should flash the correct modem and RIL along with it.
[ROM+Guide] Official i9100 Firmwares LPE/Q/7/2/F/S/4/7/G/9/W/D/F Download
Click to expand...
Click to collapse
thanks a lot zee54,
can i just go back to my CM10 or JellyBam, install the above mentioned radios and get everything working? or does it depend on the RIL which that ROM is running! I have tried a number of modems when i had CM10, but dont know if i tried those... i did try BVLP7 for sure
Based on this forum right here i need to have the I9100BOLPD ROM as stock for Netherlands T Mobile!
ozeeo said:
thanks a lot zee54,
can i just go back to my CM10 or JellyBam, install the above mentioned radios and get everything working? or does it depend on the RIL which that ROM is running! I have tried a number of modems when i had CM10, but dont know if i tried those... i did try BVLP7 for sure
Based on this forum right here i need to have the I9100BOLPD ROM as stock for Netherlands T Mobile!
Click to expand...
Click to collapse
The modem is independent of the ROM, mate. So it wont make much of a difference whether you install the radio on stock firmware or on CM10. You could try using the modems mentioned by zee54 with CM10 and seeing if it helps. Also, give it about a day or so..since the phone tends to take a while to get 'used' to a new modem.
ozeeo said:
thanks a lot zee54,
can i just go back to my CM10 or JellyBam, install the above mentioned radios and get everything working? or does it depend on the RIL which that ROM is running! I have tried a number of modems when i had CM10, but dont know if i tried those... i did try BVLP7 for sure
Based on this forum right here i need to have the I9100BOLPD ROM as stock for Netherlands T Mobile!
Click to expand...
Click to collapse
The unstable signal or "RIL Crash" as it it called isn't actually caused by having an incompatible RIL and Baseband (modem). It is a more complicated issue which I don't fully understand myself. But what I do know is that it currently affects all customs roms that are based on CM10 and use the CM Kernel. So switching modems might help recude the frequency of the problem but probably won't irradicate it completely.
You should not experiencing this problem if you go back to stock samsung firmware. If you experience problems you might want to do a full wipe (Data, Cache, Dalvic-cache) before reflashing and fix permissions afterwards.
On a more positive note, I have found that using the Siyah Kernel with your custom rom does seem to eliminate this problem, or at least reduce it occurance to such that I have not noticed it happening.
So personally i would suggest that if you wish to go back to CM10 or JellyBam ROMs, then do so but also install the latest Siyah Kernel for the S2 from here http://www.gokhanmoral.com/
(Here's the XDA Thread for the Siyah Kernel - [KERNEL] SiyahKernel v4.1.5 (v5.0a2))
I am currently running CM10 with the Siyah Kernel v5.0b2 and it is working very nicely
great stuff guys... 2x thanks for both of you!
Zeey54, i just had Siyah v5 Kernal installed, installing the latest JellyBam right now! so lets see what happens. i was suspecting that beside the RIL/baseband there were other factors as i did not see any significant difference between them. but then again i dont trust my judgement on such issues as my knowledge is quite limited.
will send an update with the result after installation in a few min.
ozeeo said:
great stuff guys... 2x thanks for both of you!
Zeey54, i just had Siyah v5 Kernal installed, installing the latest JellyBam right now! so lets see what happens. i was suspecting that beside the RIL/baseband there were other factors as i did not see any significant difference between them. but then again i dont trust my judgement on such issues as my knowledge is quite limited.
will send an update with the result after installation in a few min.
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Click to collapse
Good luck mate. I hope it all goes well
zee54 said:
Good luck mate. I hope it all goes well
Click to expand...
Click to collapse
installed the BOLP7 modem, overall reception is much better! data connectivity is also better and faster. but i still have some periods which my receptions drops and goes back up, seems like radio/modem crash (if im right). dont know if that is due to the kernel or modem or ...?
the reason i went for BOLP7 modem was because the latest official stock rom from t-mobile Netherlands was I9100BOLPM_I9100TNLLP8_I9100BOLP7, so i thought that would be the best one to try!
will wait a little more to see if this improves as the modem settles.
4th official ROM too much coverage you please make a review ?
need modem
First of all, thank you mate for your hardwork and awesome utility.
I have a Samsung galaxy S2 I9100G , recently flashed jelly bam custom rom. I am based in Saudi Arabia, the reception is not clear and people complain that it is switched off or out of network. I tried calling with another mobile and i got a response that my mobile is switched off, at the same time i checked my S2 mobile , it shows the full signal of the network in status bar.
what should i do? Which modem should i flash. the getRIL shows RIL/baseband is matching (I9100GDDLP5).
cheers
Rizwan

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