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Hello,
This is a newbie question. Is it possible to convert Cricket Samsung Galaxy S4 SCH-R970C to a TMobile version of S4. I know Cricket uses CDMA and Tmobile uses GSM but someone told me that S4 is the same device and only software is different between carriers. Can someone let me know if this is even possible?
thanks
amags
The guy at cricket told me they use a different type sim card so I don't know if it's possible
DNA420 said:
The guy at cricket told me they use a different type sim card so I don't know if it's possible
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I believe it is safe to assume you may add t-mobile elements software wise but the radios are different the cricket version is CDMA and T-mobile runs off of GSM which is completely different technology, so compatibility is a no go its litterally two different devices at that point, may be able to flash to sprint or verizon that works with cdma but even that im not too sure with
Hope that helps
cybertang said:
I believe it is safe to assume you may add t-mobile elements software wise but the radios are different the cricket version is CDMA and T-mobile runs off of GSM which is completely different technology, so compatibility is a no go its litterally two different devices at that point, may be able to flash to sprint or verizon that works with cdma but even that im not too sure with
Hope that helps
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Click to collapse
why don't you just decompile a Tmobile ROM and just take the system.img.ext4 and recompile it? I did that to a USCC stock ROM and flashed it over to my Sprint L720 and it works perfectly.
amags said:
Hello,
This is a newbie question. Is it possible to convert Cricket Samsung Galaxy S4 SCH-R970C to a TMobile version of S4. I know Cricket uses CDMA and Tmobile uses GSM but someone told me that S4 is the same device and only software is different between carriers. Can someone let me know if this is even possible?
thanks
amags
Click to expand...
Click to collapse
no bueno homie
you cannot use the T-mo version on CKT, or vice-versa
This is an old thread I know,.
Is there anymore information on this? I have read it can be done.
From cricket to t-mobile galaxy s4
cricket galaxy s4 schr970c
I would love to take this phone to a different carrier. I realize that the cdma is an issue but there had to be another carrier that I can switch to. Does any one know how I can switch carriers using this same phone?
Yeah, i have the same question as this. Would i risk bricking my phone if i tried loading a tmobile rom and modem to my cricket phone?
Bumping this older thread cuz I see no resolution and I have a similar question...
In my research I found this thread: http://forum.xda-developers.com/showthread.php?t=2409392
-The OP flashed an i9505 rom onto his R970C cricket GS4, but apparently he found it doesn't alter the modem/radio firmware, and THAT is what is different in our Cricket phones.
However, I personally am looking NOT to use this phone on a GSM network (T-mobile)..but on a CDMA (ideally Page Plus/VZW)..for that it would seem the radio is the same! -And actually I found this quote on a different forum (cricket user one):
"Cricket Galaxy S4(SCH-r970c) uses MDM9615M RF chip which includes GSM functionality which is the same chip found on Verizon Galaxy S4(SCH-i545)
Anyone try flashing a VZW firmware and also VZW modem firmware? -risk to brick it I'm sure..but, then again..maybe it just works!
"Cricket Galaxy S4(SCH-r970c) uses MDM9615M RF chip which includes GSM functionality which is the same chip found on Verizon Galaxy S4(SCH-i545"
Anyone try flashing a VZW firmware and also VZW modem firmware? -risk to brick it I'm sure..but, then again..maybe it just works!
Where can I find modems. For sch-r970c the old ones.
kalanir said:
why don't you just decompile a Tmobile ROM and just take the system.img.ext4 and recompile it? I did that to a USCC stock ROM and flashed it over to my Sprint L720 and it works perfectly.
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this sounds very interesting, can you please give us step by step instructions on how to do this.
yearner said:
this sounds very interesting, can you please give us step by step instructions on how to do this.
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Aloha brother!
I haven't done that in a long time. If you are interested in it, let me know. It's a little bit more complicated to do especially with the bringing of Samsung Knox but I feel I can try my best to help. If you still need my help, reply to this and I'll offer as much help as I can. Making far balls is easy; but getting them to be applied with correct settings is a pain the the you know what.
Mahalo,
Kalanir
R970c in others networks
kalanir said:
Aloha brother!
I haven't done that in a long time. If you are interested in it, let me know. It's a little bit more complicated to do especially with the bringing of Samsung Knox but I feel I can try my best to help. If you still need my help, reply to this and I'll offer as much help as I can. Making far balls is easy; but getting them to be applied with correct settings is a pain the the you know what.
Mahalo,
Kalanir
Click to expand...
Click to collapse
I am interested, please help me tanks.
SimplifyLife said:
Bumping this older thread cuz I see no resolution and I have a similar question...
In my research I found this thread: http://forum.xda-developers.com/showthread.php?t=2409392
-The OP flashed an i9505 rom onto his R970C cricket GS4, but apparently he found it doesn't alter the modem/radio firmware, and THAT is what is different in our Cricket phones.
However, I personally am looking NOT to use this phone on a GSM network (T-mobile)..but on a CDMA (ideally Page Plus/VZW)..for that it would seem the radio is the same! -And actually I found this quote on a different forum (cricket user one):
"Cricket Galaxy S4(SCH-r970c) uses MDM9615M RF chip which includes GSM functionality which is the same chip found on Verizon Galaxy S4(SCH-i545)
Anyone try flashing a VZW firmware and also VZW modem firmware? -risk to brick it I'm sure..but, then again..maybe it just works!
"Cricket Galaxy S4(SCH-r970c) uses MDM9615M RF chip which includes GSM functionality which is the same chip found on Verizon Galaxy S4(SCH-i545"
Anyone try flashing a VZW firmware and also VZW modem firmware? -risk to brick it I'm sure..but, then again..maybe it just works!
Click to expand...
Click to collapse
I'm curious were you ever able to flash it to vz firmware?
Unlock sim card
Hello,
As soon as I can I'll unlock the sim card for SCH-R970C?《S4 CRICKET》it will work like version?
Good luck, XA1?
---------- Post added at 06:57 AM ---------- Previous post was at 06:51 AM ----------
Hey every one?,
I've TWRP backup for jfltecri, S4 Cricket.
Works smoothly?, with open gapps.?
I'll upload it as soon as I can,
Note?:-
It's only for Yemen??
Good luck,
XA1?
Hi,
I am trying to flash the Galaxy S5 Stock ROM by @jamal2367 and am having some trouble. I do a full wipe and am able to flash the ROM successfully, however my mobile network doesn't work once it's flashed. I am able to connect via Wifi and the ROM seems awesome...I'm even able to download all of my apps and sync my Google account on it. When I try to text, make calls, etc. I don't have the service to do it, though.
I am currently running the PAC-man 4.4.4 ROM. I have a Note 3 through Sprint. Model number is SM-N900P, Baseband version is N900PVPUCNC5. Do I need to do something different with any of this? My bootloader? Any help is very much appreciated.
Thanks in advance
Scott
You should try the S5 port on the Sprint section of the Note 3. I believe it's made by Sac?
Thank you! I know...seems obvious now but that never even crossed my mind.
Techniques said:
You should try the S5 port on the Sprint section of the Note 3. I believe it's made by Sac?
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What model (version) of s4 is exactly this phone? which software is installed on it? is it stock or not ? plzz help and tell me its complete version details
My phone is sgh-i337 or gt-i9505 ? Or only baseband version is i337 becoz in about phone baseband ver is different xxugulne8...or any firmware version difference ? Help
sgh-i337
It means my android software is changed to some other version. ...
can I update official i337 software ? Lolipop?
Lennyz1988 said:
sgh-i337
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But my baseband and bootloader version are i337 anf rest of all are i9505xxugne8 :/ and on back side of phone its i9505 printed
It's a Frankenstein. An AT&T I337 with the IMEI of an I9505. Someone changed the IMEI before selling it, likely because the original IMEI was blacklisted.
its basically a korean convert your phone might be i337 but the best way is to go to download mode and check it there. model number on download mode is always real.
siddiec2013 said:
its basically a korean convert your phone might be i337 but the best way is to go to download mode and check it there. model number on download mode is always real.
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Click to collapse
I checked in dwld mode its sgh i337....can I install back stock firmware ...see this sitehttp://www.att.com/esupport/softwareUpdateArticle.jsp?sid=KB419415&cv=820
If it's an AT&T device then you can install an AT&T ROM on it. However, doing so nets you a locked bootloader for your trouble. Install a custom ROM if you can, and don't look back.
ahsandon007 said:
I checked in dwld mode its sgh i337....can I install back stock firmware ...see this sitehttp://www.att.com/esupport/softwareUpdateArticle.jsp?sid=KB419415&cv=820
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Click to collapse
of course you can install official sgh i337 firmware. just find official firmware from sam mobile or samsung updates and download them to your phone via odin. it will fresh start your phone on atnt official firmware but i suggest you to do some research over it before attempting any thing. in your case i see that your phone came with pre rooted firmware to change build.prop to make it look like 9505. i am in pakistan and this is very common here i was fooled for 9500 but it was sph l720 sprint model. best of luck with your update
Strephon Alkhalikoi said:
If it's an AT&T device then you can install an AT&T ROM on it. However, doing so nets you a locked bootloader for your trouble. Install a custom ROM if you can, and don't look back.
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you mean that I should keep using custom roms and no matter whether baseband is of i337 ....If I want to download a 5.0.1 then I will download any rom and flash through odin using pda file just....it will not chnge my baseband..
Finally I got it....its i337...I checked imei on imei.info it says it is i337 and also checked for blacklist its all clean....and I opened back cover and see it and its written "MADE BY SAMAUNG" ...spelling of samsung is wrong ...it means sticker and software are of 9505 and hardware are i337 at & t usa carrier....I think its changed in korea...phone is converted....now planning to download stock firmware of i337 lollipop and install through odin....
if anyone have link to i337 lolipop plz share
If you install a stock ROM via Odin, the bootloader will be changed, but as long as it's not an AT&T or Verizon ROM you won't suffer any ill effects. If you install an AT&T ROM there's no going back. Unlike every other country on the planet, here in the US AT&T and Verizon encrypt the device's bootloader, because they don't want you rooting the device and bypassing their bloatware and their restrictions. So, since you happen to be in a position where you have an AT&T S4 that doesn't have a locked bootloader, you want to install a custom ROM.
If you have ignored my advice and installed a stock AT&T ROM, you'll need to head over to http://forum.xda-developers.com/galaxy-s4-att and use the information there to root. Honestly, now that you know your S4 is an AT&T model, you should head over there anyway.
Strephon Alkhalikoi said:
If you install a stock ROM via Odin, the bootloader will be changed, but as long as it's not an AT&T or Verizon ROM you won't suffer any ill effects. If you install an AT&T ROM there's no going back. Unlike every other country on the planet, here in the US AT&T and Verizon encrypt the device's bootloader, because they don't want you rooting the device and bypassing their bloatware and their restrictions. So, since you happen to be in a position where you have an AT&T S4 that doesn't have a locked bootloader, you want to install a custom ROM.
If you have ignored my advice and installed a stock AT&T ROM, you'll need to head over to http://forum.xda-developers.com/galaxy-s4-att and use the information there to root. Honestly, now that you know your S4 is an AT&T model, you should head over there anyway.
Click to expand...
Click to collapse
..i installed stock 4.4.4 ATT software but i want to install back i9505 software becoz att is not running well in my country...it lags in sending msgs and making calls and also hotspot nd other probs....can u guide me to get back 9505 software
I tried warning you but you plowed ahead anyway. The stock ROM you put on the phone is basically untouchable, because of the locked bootloader, so you now have two options: use the phone as is, or use the information in the AT&T S4 forums to install SafeStrap recovery and from there flash a custom ROM.
Strephon Alkhalikoi said:
I tried warning you but you plowed ahead anyway. The stock ROM you put on the phone is basically untouchable, because of the locked bootloader, so you now have two options: use the phone as is, or use the information in the AT&T S4 forums to install SafeStrap recovery and from there flash a custom ROM.
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Click to collapse
Hmm yeah but i think it will work fine ...only problem is of signal network....can you guide me how to flash 9505 modem on i337 ?
No, because it won't work. I tried flashing an AT&T modem to my I9505 when trying to add LTE frequencies to my device. The phone rejected the modem, but it didn't harm my I9505 either.
Strephon Alkhalikoi said:
No, because it won't work. I tried flashing an AT&T modem to my I9505 when trying to add LTE frequencies to my device. The phone rejected the modem, but it didn't harm my I9505 either.
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Click to collapse
But previously i am running baseband of 9505 on i337
It could be because I didn't use Odin when trying to flash in that instance. Under ordinary circumstances you shouldn't be able to flash I9505 firmware on an I337. Regardless, you can try to flash the I9505 modem using Odin, but the results at best will be unpredictable. It certainly won't change the LTE bands on the phone as those can apparently only be changed with tools we don't have.
Strephon Alkhalikoi said:
It could be because I didn't use Odin when trying to flash in that instance. Under ordinary circumstances you shouldn't be able to flash I9505 firmware on an I337. Regardless, you can try to flash the I9505 modem using Odin, but the results at best will be unpredictable. It certainly won't change the LTE bands on the phone as those can apparently only be changed with tools we don't have.
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i tried using odin it fails ...with some logs like receive response from bootloader fail.... :/ im getting maximum of 3/5 signals on att baseband in my country ...
Hey everyone, I been looking around the forums here and other sites and have learned a lot of info in pieces but I really need help with a particular issue. A friend of mine gave me a Sprint Galaxy SM-G900P (Galaxy S5) which is (of course) CDMA with GSM compatibility. Im unsure at the moment what service he was wanting to use but I know it is a GSM carrier (US) because he has a SIM he wanted to use. I owe him a favor so I told him I would try. Besides going the route of purchasing a unlock box and unlocking the phone with that, I discovered the SSU apk which SIM-Unlocks the phone. I downgraded the phone from Lollipop 5.0 stock to Android 4.4.2 KitKat (G900PVPU1ANE5) with ODIN. (FYI, i was stuck in download mode with no recovery mode for a week before finally getting one to work, and so happen to be that version that went through)..... I downloaded SSU and it unlocked the phone and I switched mobile network mode from CDMA to GSM Units. (NOTE: it says 4.4.2 and up will not work with USA carrier SIM cards without downgrading the Modem but I have not tried just yet) Im about to Root the phone but here is where my question comes in. I have read of people flashing roms to get their phones to work with certain carriers and other functions. Will rooting help me out at all? I guess IM asking if there is a ROM that I can flash onto the phone to enable the use of whatever carrier he is wanting to use with it. I know thats most likely useful in the situation, but Im awaiting that answer as we type. ANY help would be greatly appreciated ))) Thank you all.
Anyone? :/
I am beginner in this rooting field.. And with less knowledge I now am attracted towards flashing different rom on my phone since I am influenced by others discussion in #XDA. But when I came to meet some people in social chats, when I asked them for the, what are the requisites to be fulfilled while flashing #safe_rom without any brick.. Some says search rom on Google of your phone model i·e (gt-I9505) when I searched it there again appeared the case of #baseband version,there "google" when I got the other rom of my phone below it was written only for baseband "XXUHOJ2" and it didn't matched with mine.. In some post rom for jflte, jfltexx, sprint, .... And m confused all... And my question is.. Should all of those match to flash custom rom?? Isn't gt-I9505 all same??? Why should we consider #baseband for flashing rom or latest firmware?? Why?? Why?? Plz help me!!
-Thank you!
No baseband update
Hello and thank you for using Q/A,
you don't need to update or flash a baseband, if you want to install a custom ROM or stock ROM.
Kind regards
Trafalgar Square
And what about jfltexx,jflte, sprint.. Some post says rom for jfltexx, some says for this baseband only,, what to do in this situtation??? Is there any #compulshory to match baseband in order to flash custom rom??
Hi,
I've an I9500 who has Indonesian base, and I've flashed many ROMs designed for my device and I never had any problem. Baseband doesn't matter, however, an EFS backup should be made to be safe, so you can restore it later if you miss your IMEI after doing flash a certain ROM.
Because you've an I9505, any jfltexx ROMs should fit on your phone. You'll have no problems as long as you follow instructions provided by the developer.
I9505 doesn't stand itself. Some variants are released by certain operators in certain regions, like SPH-L720, SGH-I337, SGH-I337m, SCH-R970, etc. All variants who are on I9505 family are able to install jfltexx ROMs, but with some notes that might be available for certain devices.
Sent from my GT-I9500
You should only care about the baseband if you have a phone from Verizon or T-Mobile, as they generally have locked bootloaders.
Basebands are updated almost monthly. There is no way to have them matched.
You only need to care about your phone model.
krasCGQ said:
Hi,
I've an I9500 who has Indonesian base, and I've flashed many ROMs designed for my device and I never had any problem. Baseband doesn't matter, however, an EFS backup should be made to be safe, so you can restore it later if you miss your IMEI after doing flash a certain ROM.
Because you've an I9505, any jfltexx ROMs should fit on your phone. You'll have no problems as long as you follow instructions provided by the developer.
I9505 doesn't stand itself. Some variants are released by certain operators in certain regions, like SPH-L720, SGH-I337, SGH-I337m, SCH-R970, etc. All variants who are on I9505 family are able to install jfltexx ROMs, but with some notes that might be available for certain devices.
Sent from my GT-I9500
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Thank you for info.. ??. I appreciate you!! Thanks
GDReaper said:
You should only care about the baseband if you have a phone from Verizon or T-Mobile, as they generally have locked bootloaders.
Basebands are updated almost monthly. There is no way to have them matched.
You only need to care about your phone model.
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Click to collapse
Thank you' phone model mean: only (gt-I9505) (gt-I9500) ya??
Athakuri700 said:
Thank you' phone model mean: only (gt-I9505) (gt-I9500) ya??
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Click to collapse
Yes, mostly.