I wondering why flashing a GSM ROM would brick a CDMA Desire? Flashing just a ROM shouldn't affect the radio so what is the primary issue. From there, I guess my next question would be what is need to port a GSM to CDMA?
heavymetalmage said:
I wondering why flashing a GSM ROM would brick a CDMA Desire? Flashing just a ROM shouldn't affect the radio so what is the primary issue. From there, I guess my next question would be what is need to port a GSM to CDMA?
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its because they have diffrent cpu's, the radio band a device can use is hard coded into the cpu ......
AndroHero said:
its because they have diffrent cpu's, the radio band a device can use is hard coded into the cpu ......
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Sorry - but you are essentially wrong here.
The Snapdragon SoCs that power both devices essentially have two cores on them - one which handles the OS, and one which handles the radio. For the most part, the OS "core" (which is the ARMv7 part) is going to be identical on both the GSM and CDMA Desires, and the difference lies in the radio core.
However, that is not to say that flashing a GSM ROM (without radio of course) on a CDMA Desire will brick it, but I'd say it was fairly unlikely since recovery should be unaffected.
When I had my Hero, the first leak of an Eclair ROM came from the Sprint Hero (a CDMA device) and it was relatively easily ported to the GSM Desire.
Regard,
Dave
foxmeister said:
Sorry - but you are essentially wrong here.
The Snapdragon SoCs that power both devices essentially have two cores on them - one which handles the OS, and one which handles the radio. For the most part, the OS "core" (which is the ARMv7 part) is going to be identical on both the GSM and CDMA Desires, and the difference lies in the radio core.
However, that is not to say that flashing a GSM ROM (without radio of course) on a CDMA Desire will brick it, but I'd say it was fairly unlikely since recovery should be unaffected.
When I had my Hero, the first leak of an Eclair ROM came from the Sprint Hero (a CDMA device) and it was relatively easily ported to the GSM Desire.
Regard,
Dave
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Interesting. So the fundamental difference is probably in the kernel and roms would have to be built from there on up?
could u basically flash a gsm kernel to a cdma phone then? since it wont change the radio. (noob question i guess)
or if u cant, what is the difference between gsm and cdma kernels?
bra402913 said:
could u basically flash a gsm kernel to a cdma phone then? since it wont change the radio. (noob question i guess)
or if u cant, what is the difference between gsm and cdma kernels?
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why do you want to take the risk? I don't really understand kernal that well other than its like the super basic coding of the operating system or something like that, but you might be hard pressed to find such a kernal anyways and I really don't think that's enough to make it work in the first place. All the software/firmware/radio versions/etc... have to match up or "sychronize" so to speak is my understanding. And yes Radios do come with stock ROM's, but they sometimes don't always come with Custom or cooked ROM's. Sometimes I flash a stock ROM just to get the stock radio then I reflash a custom ROM back to it for example so I have the stock radio with a custom ROM like mighty ROM
derekstaroba said:
why do you want to take the risk? I don't really understand kernal that well other than its like the super basic coding of the operating system or something like that, but you might be hard pressed to find such a kernal anyways and I really don't think that's enough to make it work in the first place. All the software/firmware/radio versions/etc... have to match up or "sychronize" so to speak is my understanding. And yes Radios do come with stock ROM's, but they sometimes don't always come with Custom or cooked ROM's. Sometimes I flash a stock ROM just to get the stock radio then I reflash a custom ROM back to it for example so I have the stock radio with a custom ROM like mighty ROM
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because the cdma has no simcard reader an gsm has
janielsen said:
because the cdma has no simcard reader an gsm has
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Did you mean to quote me? Are you replying to me? Most CDMA only phones don't use sim cards and have no slot for them. Additionally the only countries that use CDMA is USA, Japan, South Korea, and India, all the phones in the rest of the world use GSM/SIM technology. Theres only a few exceptions to the CDMA only rule such as the touch pro 2 which is designed/capable to work both on CDMA and GSM networks
bra402913 said:
could u basically flash a gsm kernel to a cdma phone then? since it wont change the radio. (noob question i guess)
or if u cant, what is the difference between gsm and cdma kernels?
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Flashed many times GSM ROM to my CDMA Desire, just to check if it works... Didn't bricked my phone totally - recovery was working fine. I use it as a pad, no cellular connection, so I figured out if OS part will work than I don't mind. But it didn't, 95% of a time. I think Ethereal2_R3_Final was the only one that worked, but not sure if it is GSM now. Go and play around - it's reasonably safe. Running Oxygen CDMA now.
what would you recommend to get your device up and running again if your back up recovery fails?
janielsen said:
because the cdma has no simcard reader an gsm has
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Says who ? My ZTE Blade N880 CDMA have simcard slot.
So, my question is, is it hard to porting from custom rom for zte blade gsm into zte blade cdma? Thx.
Related
Hello, I saw and tried the cdma version of Keiran's Darkforest ROM, while I like how smooth and the Sony Ericsson launcher is but I missed t-mobile's theme chooser from team freexperia's cm7 rom. I was hoping some devs would tell/write what some of the key differences are between gsm and cdma are. I've read somewhere that one core is for radio and another is for everything else and the radio core is the reason why're so different. Idk how true that last sentence is though.
why not download the cdma version of cm7?
Because I want to try and convert other gsm roms to cdma.
You'd be the first to convert a PLAY GSM rom to CDMA if you do, so good luck
Seeing as all roms are different what one in specific do you want to convert?
What about KeiranFTW's Darkforest rom? I thought that was a conversion?
And I have a couple I'd want to do imo the first one I'd try to do is ICS MIUI from pricey2009's thread. I've seen a number of posts/threads saying its possible so this thread is to ask for devs and ppl to post what they know and try to make it work.
start by replacing the following libs with the cdma variants
libcm.so
libgsdi_exp.so
libgstk_exp.so
libmmgsdilib.so
libnv.so
liboncrpc.so
libpbmlib.so
libril.so
libril-qc-1.so
libuim.so
libwms.so
Alright, I'll try with doom's kernel and see how it goes.
although I think the kernel might need some work or it could be the miui rom. because just replacing those ^ files my phone wont go past the booting DooMkernel screen. Wiped data, cache from stock rom before I ran the miui updater script.
Any news or updates on your attempts at converting a GSM rom to CDMA?
Not anything new unfortunately. : (
I don't think converting the aokp from was new either as its cm9 based so I did the same thing as pax did for cm9. Except super venom did the real work compiling it with Xperia vendor/ parts whatever.
jgregoryj1 said:
Any news or updates on your attempts at converting a GSM rom to CDMA?
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The most we can do is in ICS.
AOKP/CM9 are fully compatible from a GSM variant.
Sony Beta is a different story.
Seeing as how CDMA users are on the short end of the leash for ROM selections, I have given it some thought and though I do not know much in the way of porting and or programing for that matter I would like to attempt to port a GSM ROM to the R800x. Can anyone give me some advice and or tips on how to go about that? Thank you in advance.
Or, is it possible to simply make a CDMA Patch that you flash separately to make a GSM ROM work with the CDMA R800x?
jgregoryj1 said:
Seeing as how CDMA users are on the short end of the leash for ROM selections, I have given it some thought and though I do not know much in the way of porting and or programing for that matter I would like to attempt to port a GSM ROM to the R800x. Can anyone give me some advice and or tips on how to go about that? Thank you in advance.
Or, is it possible to simply make a CDMA Patch that you flash separately to make a GSM ROM work with the CDMA R800x?
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There is a patch in the cm9 nightly build thread that kerian made that I guess works on most aosp builds..I've ported the gsm version of cm7 to cdma changing some libs, a few build prop tweaks,and changing the updater script. You should pm pax(Peter) he may know more about it then I since I'm so use to gsm models
agraceful said:
There is a patch in the cm9 nightly build thread that kerian made that I guess works on most aosp builds..I've ported the gsm version of cm7 to cdma changing some libs, a few build prop tweaks,and changing the updater script. You should pm pax(Peter) he may know more about it then I since I'm so use to gsm models
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I was thinking of trying to port some of the awesome ROMs here, like true ancestor, jokawild, etc. Obviously I would ask for each Devs permission. I want to retain the Xperia PLAY framework as I game a lot on my phone.
On a side note I do have the CDMA Patch but its for CM7 and or CM9....... is it possible to use this for the Xperia GSM ROMs?
I did PM Pax as you recommended,
I was also looking in on how to do this. I've actually been trying to make jokawild work on cdma
Sent from my R800x using XDA
Well I have tried multiple times and spend hours on this. Had to ftf a few times as my fastboot almost stopped working. It would flash green a couple times then go dark. Battery pulled a few times and was able to ftf back. Now back to my nandroid. Not sure where to proceed. I even tried the CM9 cdma patch as a base, not the files from it just poked around to get an idea. I do say that trueancestor does give full rom but no cdma or 3g data. But you can ply with the full rom on cdma.
Sent from my R800x using xda premium
Hi,
I have SIM unlocked, rooted Tmobile's samsung Galaxy SIII (SGH-T999); put AT&T SIM card and it is working fine. As a fundamental question on loading custom ROMs, should I be picking ROMs from AT&T forum in XDA or Tmobile in XDA??? So far I have been using Avatar/Liquid Smooth ROM built for Tmobile....still it doesnt make sense to me as i am currently on AT&T....I dont want to brick my phone by doing something wrong.
Can someone reply?
Thanks
Mahesh
BTW - ignore my signature....i am unable to edit them - dont know why - there is no option to edit signature!
kmahesh said:
Hi,
I have SIM unlocked, rooted Tmobile's samsung Galaxy SIII (SGH-T999); put AT&T SIM card and it is working fine. As a fundamental question on loading custom ROMs, should I be picking ROMs from AT&T forum in XDA or Tmobile in XDA??? So far I have been using Avatar/Liquid Smooth ROM built for Tmobile....still it doesnt make sense to me as i am currently on AT&T....I dont want to brick my phone by doing something wrong.
Can someone reply?
Thanks
Mahesh
BTW - ignore my signature....i am unable to edit them - dont know why - there is no option to edit signature!
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You should flash rom's specific to your phones hardware/model number. It seems to me *most* of the hardware is the same between the i747 and t999 from what i've read but always best to err on the side of caution.
dntesinfrno said:
You should flash rom's specific to your phones hardware/model number. It seems to me *most* of the hardware is the same between the i747 and t999 from what i've read but always best to err on the side of caution.
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by doing that, in my case, would my ROM be optimized for AT&T??
kmahesh said:
by doing that, in my case, would my ROM be optimized for AT&T??
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Most likely, but tread with caution. The only issue you might encounter are APN settings that you could always edit manually. From what I understand, the T-Mobile Galaxy S3 is almost identical to the AT&T one, and in certain cases, some people have been able to run T-Mobile roms on the AT&T one.
kmahesh said:
by doing that, in my case, would my ROM be optimized for AT&T??
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The only thing that is carrier specific as far as custom ROM's are concerned is the ability to connect to the network in question, its the hardware the ROM is designed for that is important, minus any carrier bloat apps that may be included in a ROM (non issue if using an AOSP based ROM). Flashing software to an unintended device will most likely be bad news. As drx said worst case you would have to manually enter the apn settings. If i recall the only real difference in the TMo and ATT S3's is the fact that the T999 can connect to the 1700mhz band and the i737 can't (natively).
Hello all, I've been following the M8 forum for a few weeks in anticipation of getting a new phone on May 8th. I have a bit of a noob question though, one that I've been unable to find the answer to myself.
Which version of ARHD 5.0 should I install on a T-Mobile HTC One M8? I've been following their thread for a while and intend to unlock/root/install ARHD within a few days of getting the device. I see mentions of the international version as well as different versions for each US carrier. My understanding is that GSM carriers can install international versions whereas CDMA carriers must install their specific variants.
If my understanding is correct and you are able to install the international version or the T-Mobile version, then what is the difference?
I appreciate any help. I'm not a complete noob when it comes to rooting and flashing roms, but I'm coming from a VZW Galaxy Nexus where it was pretty much idiot proof. I've been running the same ROM for so long that I know exactly how to flash it each time a new update is released. It didn't have specific variants because the ROM was designed specifically for the VZW Gnex. So I'm a little confused by the different variants and want to make sure I don't mess anything up a week after I get the phone.
Again, thanks to anyone who takes the time to help me wade through my confusion.
You can flash any GSM variant.
The differences will be whatever the carrier has done to tweak their version of the roms, included apps, tweaked settings, signal icons etc.
exad said:
You can flash any GSM variant.
The differences will be whatever the carrier has done to tweak their version of the roms, included apps, tweaked settings, signal icons etc.
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Thank you for confirming that. While I was like 90% sure, it's better to have someone confirm that for me.
Hello everyone. I have a Verizon M8 (unlocked/S-off), and I have switched to AT&T.
In order for my phone to work, I loaded ARHD (great ROM, btw), as the ROM I was using while I was on VZW did not want to play nice with the AT&T SIM card.
Everything is now working except for WiFi and LTE.
Based on what I've read, LTE on AT&T ain't happening on my device due to lack of frequency band support. But the WiFi problem is likely related to firmware, and therefore (I assume), fixable.
Here's my question: is it possible after I SuperCID my phone, to install the WWE firmware to fix the WiFi problem? Or will this brick my phone?
Thanks!
BBEgo said:
Hello everyone. I have a Verizon M8 (unlocked/S-off), and I have switched to AT&T.
In order for my phone to work, I loaded ARHD (great ROM, btw), as the ROM I was using while I was on VZW did not want to play nice with the AT&T SIM card.
Everything is now working except for WiFi and LTE.
Based on what I've read, LTE on AT&T ain't happening on my device due to lack of frequency band support. But the WiFi problem is likely related to firmware, and therefore (I assume), fixable.
Here's my question: is it possible after I SuperCID my phone, to install the WWE firmware to fix the WiFi problem? Or will this brick my phone?
Thanks!
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If your phone is from V you should stick to Verizon firmwares and kernels. There may be exception, but as far as i know Verizon and Sprint phones have other differences from GSM variants, not only firmware and/or kernel etc. Yes, your device can be used WW, but i'm pretty sure you cannot convert to full WWE. I went so far that i used QPST configurator and RFNV manager to unlock all the bands of my phone and yet i can't get LTE to work. I do hope someone here prove me wrong, but for now i'm happy i can use my phone in eastern Europe.
Thanks for the input. I was afraid of that. So I guess I'm stuck until new VZW firmware gets released, and then maybe my WiFi will work?
I guess I could look for a ROM that is using a different base and try that.
BBEgo said:
Thanks for the input. I was afraid of that. So I guess I'm stuck until new VZW firmware gets released, and then maybe my WiFi will work?
I guess I could look for a ROM that is using a different base and try that.
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WiFi not working could be kernel related. What kernel are you running - stock or something else. I'm using lunarkernel+viperrom.
When i read carefully, you didn't mention on what firmware you run ARHD
3.28.605.4
BBEgo said:
3.28.605.4
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Well, it's the right one for the job. My guess is kernel is causing non working WiFi, but i could be wrong. Did you tried some custom kernels?