NS4G modem patch on CM7/9/10 based roms, nightlies and previews- 2/12/13

Hi, I made this thread because people have been asking me what to do to make a ROM compatible with the Nexus S 4G modem and RIL, so I made a flashable zip so you can use the modem and RIL on any CM7 based ROM (like MIUI or JoyOS or whatever you fancy).

Note: If using a ROM not on this list, use the closest cm patch corresponding to the os and then download the phone and settings apks from the nexus s 4g Roms and either put them in the zip or push them. That way, roaming and update prl and profile will work.

I included the KL2 modem in each AIO zip. If you do not like it, or would like to try other modem files, try the flashable zips here: http://xdaforums.com/showthread.php?t=1077168

CM7

just flash the zip below (made by nashdogg and I)
http://d-h.st/dGR
I added the nexus audio drivers in kernel and lib, and I also added voodoo color, voodoo sound, and Battery Life Extender.

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CM9 (Roaming Fixed) Instructions:
Just flash this in CWM. Custom kernels are available in the 2nd post. http://d-h.st/U1L

AOKP ICS (by Nashdogg)
http://d-h.st/vVP

Jellybean patches thanks to dropple, nashdogg, andy_nu, and didhiy ( newest patch as of 12/5/12 with nitest didhiy 1124 kernel voodoo color)

PA 2.54 AIO ns4g modem patch- http://d-h.st/CQm

CM10 AIO ns4g modem patch- http://d-h.st/96W

AOKP-JB Build-4 AIO ns4g modem patch- http://d-h.st/t4n


CM10.1 http://d-h.st/i9s

Universal

Effsi said:

http://goo.im/devs/effsi/misc
these should allow you to switch back and forth between the epic modem and nexus modem.

what it does :
installs blobs related to the modem
edits build.prop lines to match the modem
-should- work with all current versions (2.3 through 4.2.2)
-should- work with all roms that support switching modems (aokp, cm, pa, pac, baked, hellybean, etc...)

what it doesn't do :
it does not install or change the actual modem itself.
it does not install or change the kernel.
it does not backup anything.
it does not replace any apks.
it does not perform any tweaks or extras of that sort.
it does not fix issues in the system ie if 4g isn't working in the kernel this installer won't magically fix it or inversely break it if it works.

so that means you will need to install the modem itself (through zip or the MORE RECOMMENDED METHOD OF ODIN)
and that you will need to make sure you are on a proper kernel that supports your modem of choice.

Ex... on stock aokp4.2.2 (which is epic modem by default) to switch to the nexus modem you would flash kernel of choice for nexus modem (didhiy/mine), then modem with recovery or odin, then flash swap2nexusmdm.zip
Ex2... on ck10.1 (which is nexus modem by default) to switch to the epic modem you would flash modem of choice with Odin or recovery, then any kernel that supports epic modem and then flash swap2epicmdm.zip


Note: These instructions are a bit different than effsi's as the order of flashing does matter when on an epic modem ROM and kernel as the modem flash is dependent on kernel drivers that are not present in epic modem kernels.

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Any Nexus S 4G modem can be used but the one included is supposedly best. Try any other one and let me know if it works better

My kernel sources are at https://github.com/xboxfanj/android_kernel_samsung_victory in the gingerbread branch so if you want to make a kernel based on that or cherrypick the patches in my kernel into another kernel, you are welcome to.
Use my commits and bbelos' commits at https://github.com/nexussense4g/android_device_samsung_epicmtd in the crespo-modem branch to get GPS and modem working on any ROM.

Thank you to didhiy for adapting the patches that bbelos and I made. For support for Update PRL and Profile, you need to copy some of the overlays from the Nexus S 4G device sources.

Thank you to bbelos, coolya, the CM SGS team, CM Nexus S team, AOSP, Samsung, Google, and me for making this patch.

Custom CM9 Kernels (note these are not all in one zips, so if you choose to flash these, you must also flash the AIO if you haven't already, and each time you upgrade builds, you'll need to flash the aio and the custom kernel if you still want it):

Nyan:
http://marcusant.com/android/epic/nyan_CM9-CrpMdm.zip

Shadow: http://marcusant.com/android/epic/Shadow_CM9-CrpMdm.zip

Anyone is welcome to include this patch in their rom, just as long as you give all the contributors credit.

And also, if someone wants to make this for cm9, that'd be awesome. Use bbelos's crespo-modem branch in his device repo and use his crespo-modem branch in his vendor repo.

Then use my kernel patches at my github and make a full cm9 build and if it works, release that build and release a patch like mine with kernel, and ril bins, libs, and etc files, and build.prop and everything outside system like the mtd scripts and modify updaterscript so it works, or just use my metain folder

Sent from my SPH-D700 using Tapatalk 2

itek said:

First! Sweet, I always wanted to do that. :- )

And thank you so much xboxfanj for continuing to make this the phone that might never die! You and all the other great devs are definitely making it easy to
wait to upgrade to a new phone. Keep up the good work, and thanks again.

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No problem. Glad you enjoy it. If there's ever anything you would like for me to port or do, PM me and I will do whatever I can to make it happen.

Sent from my SPH-D700 using Tapatalk 2

didhiy said:

I try to install this patch over cm7 stable & didn't work.. I think the format /system command on updater-script will erase all the previous rom
I'll try to fix it tomorrow on my free time, maybe with try find some commands to erase previous blob which unreplaceable with the patch like lib sec ril 40.so (or similar) and build.prop must be edited from the previous rom with changes on several lines.

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No need to delete libsecril-40. Thanks for letting me know that. Forgot to delete the format command. Got it now and the zip is updated, but at the same link.

Edit: and any CM7 ROM should be fine with CM7 build.prop AFAIK. It may not identify 100% correctly in settings>about phone, but good enough. TBH, I don't care if it says CM7 in settings while I run MIUI.

xboxfanj said:

No need to delete libsecril-40. Thanks for letting me know that. Forgot to delete the format command. Got it now and the zip is updated, but at the same link.

Edit: and any CM7 ROM should be fine with CM7 build.prop AFAIK. It may not identify 100% correctly in settings>about phone, but good enough. TBH, I don't care if it says CM7 in settings while I run MIUI.

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Fixed GPS as well, sorry about the first couple batches being wrong. This one should be good. If you downloaded before, DL again.

Flint420 said:

Modem works great but this breaks root for me.

Sent from my SPH-D700 using Tapatalk 2

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Weird not sure what I could've done that would've broken root. Does anyone else have this problem?

Sent from my SPH-D700 using Tapatalk 2

Flint420 said:

Not sure if it makes a difference but I flashed the modem through odin first then the patch. I'm on the newest cm7 nightly.

Sent from my SPH-D700 using Tapatalk 2

Click to expand...

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That shouldn't matter.

Sent from my SPH-D700 using Tapatalk 2

didhiy said:

I downloaded the newest one (not test yet) & think that this command

Code:

set_perm_recursive(0, 0, 0755, 0644, "/system");

will messed up the su permission that cause root access denied

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Click to collapse

OK, I will just not change the permissions in any folder I haven't modified. Probably some of the xbin and bin stuff is at fault too.

Thank you didhiy for looking at my updaterscripts and pointing out what to fix.
Sent from my GT-P7510 using Tapatalk 2

sgtkwol said:

What changes are needed in build.prop, if I was to try this on CM10?

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change libsecril-40 to libsec-ril, delete all the samsungril or samsungcdma or epicril stuff. Remember, you will need a fresh new kernel, with the modem patch.

Is it stable? Copy the last two commits here to fix GPS and modem stability: https://github.com/NexusSense4G/android_device_samsung_epicmtd/commits/crespo-modem

Also, add gpsd from my CrespoModem CM7 ROM to vendor/samsung/epicmtd/vendor/bin to fix GPS.

Let me know after you apply these patches if modem works every boot (on some old ICS builds using this, modem didn't work every boot, so reboot at least 20 times and make sure the signal bars are there, not X'ed out). If so, go ahead and release, just give me and bbelos a shout out. If you want, create your own thread for it. If not, you can certainly use the CM10 Kang thread. Also, make a patch zip like mine here if you don't mind and I can post that here, or you can make your own thread.

added some of the xbin permissions stuff in here. Let me know if it fixed su. It's in the same link.