CRT screen off - Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot

I can't get this to work on stock mdc Rom with fauxs kernal. It installs fine but doesn't work. Anyone know how to fix this? Thanks in advance
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I9505 ROMs on sprint galaxy s4

Would there be a way to get i9505 ROMs to work with the sprint galaxy s4?
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88exp88 said:
Would there be a way to get i9505 ROMs to work with the sprint galaxy s4?
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i wish! cant wait till we get some roms over here.. very slow for sprint s4.. verizon s4 thread is jumpin!! so wish i had verizon.. synergy rom just dropped for the verizon s4.. cant wait till it works for us also.. :fingers-crossed:
Flashed a verizon rom already...old news. But u gotta figure out how to get apns, mms, etc.. working. O n flash a sprint kernel..
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strive53 said:
Flashed a verizon rom already...old news. But u gotta figure out how to get apns, mms, etc.. working. O n flash a sprint kernel..
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How did you flash a Verizon rom? What are the troubles that you ran into?
You can flash any carriers roms. Just have to use a sprint kernel. Think the the only s4 roms u cant flash is the i9500. I flashed omega from i9505 s4 n boots fine. You will most likely have data issues and im not sure how to fix. Also there was an update 2 the international s4, not really sure how that plays into compatibility for us.
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88exp88 said:
How did you flash a Verizon rom? What are the troubles that you ran into?
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just wait till the devs get aroma working on the s4 and the verizon s4 devs will get there roms to work on the sprint s4 just like they did on the s3
strive53 said:
You can flash any carriers roms. Just have to use a sprint kernel. Think the the only s4 roms u cant flash is the i9500. I flashed omega from i9505 s4 n boots fine. You will most likely have data issues and im not sure how to fix. Also there was an update 2 the international s4, not really sure how that plays into compatibility for us.
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Ok cool I will that out. I just have to flash a sprint kernel after. Synergy rom here I come!
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Other variants aosp roms usually work without modification. Also rogers stock rom works fine as well
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88exp88 said:
Ok cool I will that out. I just have to flash a sprint kernel after. Synergy rom here I come!
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you're still going to have data issues. I read something about modifying apn, but I don't personally have experience with that.
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mjs2011 said:
you're still going to have data issues. I read something about modifying apn, but I don't personally have experience with that.
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OK I'm gonna flash miui V5 from i9505 and see how it goes.
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Just to be sure I have to flash a sprint kernel after flashing the i9505 ROM.
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88exp88 said:
Just to be sure I have to flash a sprint kernel after flashing the i9505 ROM.
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88. Can't wait to hear how it goes. Good luck.
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OK I just tried flashing and I ran into a boot loop. I'm gonna try again later today if anyone wants to try it out and share there outcomes here is the link: http://forum.xda-developers.com/showthread.php?t=2306650
I'm thinking trying a different kernel but we'll see...
Try a touchwiz kernel and make sure the rom doesn't have a modem file. It will say in the description of the ROM.
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nicotheandroidguy said:
Try a touchwiz kernel and make sure the rom doesn't have a modem file. It will say in the description of the ROM.
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What if I wanted to flash the Miui V5 Rom in the link, how would I do that just flash an AOSP kernel after the rom?
Then just flash a aosp kernel. After applying the ROM.
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nicotheandroidguy said:
Then just flash a aosp kernel. After applying the ROM.
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OK I will try that out...
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nicotheandroidguy said:
Then just flash a aosp kernel. After applying the ROM.
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BTW this won't brick my phone right?
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As long as you wipe data and cache after flashing the ROM then flash a sph l720 aosp kernel.
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nicotheandroidguy said:
As long as you wipe data and cache after flashing the ROM then flash a sph l720 aosp kernel.
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OK let's try that out, I replaced the boot.IMG with one found in SPH l720 CyanogenMod, then zipped it back up. Time to flash...
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wifi not working

i updated to mf9 and flashed sacs rom, i was wondering why everytime i use this rom wifi wont turn on? do i need to do something?
Have you tried changing your kernel ?
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daniel4653 said:
Have you tried changing your kernel ?
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Yes
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Can someone help me out - updated modem thread

I have been searching high and low for an updated modem thread. I have a sprint galaxy s4 running cm10.2 and custom recovery
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I think this may be what your looking for.
http://forum.xda-developers.com/showthread.php?t=2338919
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Is there a way to flash it just like a ROM?
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I don't think so maybe someone else might know better.are you having problems with Odin?
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Just not really sure on the process is it pretty much to flash stock back on so I can do updates? Or did it just pretty much replace the radios. The only reason why I really want to do this because it seems like my signal isn't strong I don't know if it's because I haven't done a PRL update profile update or if its just the ROM. I'm not new to routing and flashing ROMs. But I practically know anything about modems. I know you have to reflash the stock rom meaning TouchWiz to update profile and PRL but like a dumbass I deleted the stock rom backup.
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If you follow the directions it pretty easy it only updates you're modem
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Thank for the help now would that and I'm sure this is a stupid question that help with signal problems?
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I think some have said they get better reception with the latest modem I didn't notice any difference but I have Sprint which is crap everywhere
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johnpaulattard88 said:
I have been searching high and low for an updated modem thread. I have a sprint galaxy s4 running cm10.2 and custom recovery
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Try the stock MF9 rom heres the link http://forum.xda-developers.com/showthread.php?t=2357471 and update profile and prl hope this helps.

S4 ktoonsez stock wifi broken

Hey all.
I installed Ktoonsez on my i9505 running 4.3 stock and eversince my wifi wont turn on. When i turn it on it keeps saying turning on. And turna off after while.
Someone told mw that it is modem related and i had to flash Djembeys wifi fix for my rom. Unfortunately this didnt fix anything.
I hope someone else could help me please
Thanks in advance
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Bump
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Flashed stock kernel back. No effect either. Help me please!
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Help me please
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Help lost sound MF9 to MJA

I've lost all sound after updating my modem from MF9 to MJA any help would be greatly appreciated.
Tia
GOOSE
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Are you still on a 4.2 based ROM?
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frostedunit said:
Are you still on a 4.2 based ROM?
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No I was 4.2 when I changed radio MJA then flashed a sacs 4.3 rom nice picture man I do line work as well
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Please close thread op
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