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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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Click to collapse
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
Click to expand...
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.
Click to expand...
Click to collapse
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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Click to collapse
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?
hello i require your assistance
i bought a samsung galaxy note 3 SM-n9009 in china. Upon bringing it back to singapore, i realised that i may not be able to use it with local telcos. I have limited knowledge of phone firmware, but if im not wrong, each telco has their own firmware. Hence, my question is, am i able to flash my local telco's firmware over the current one, and use my simcard on it without any drawbacks? and if so, how?
i have did a limited search and found that only european note 3 are region locked. im not sure if the current one is.
thank you for your help
for info: singapore local models are n9005.
Nuker22110 said:
hello i require your assistance
i bought a samsung galaxy note 3 SM-n9009 in china. Upon bringing it back to singapore, i realised that i may not be able to use it with local telcos. I have limited knowledge of phone firmware, but if im not wrong, each telco has their own firmware. Hence, my question is, am i able to flash my local telco's firmware over the current one, and use my simcard on it without any drawbacks? and if so, how?
i have did a limited search and found that only european note 3 are region locked. im not sure if the current one is.
thank you for your help
for info: singapore local models are n9005.
Click to expand...
Click to collapse
There isn't much info around about the N9009 model, Is it like the N9005? snapdragon? -- From what I can see it isn't possible, however it may be possible flashing N9005 firmware but I wouldn't hold your hopes too high.
radicalisto said:
There isn't much info around about the N9009 model, Is it like the N9005? snapdragon? -- From what I can see it isn't possible, however it may be possible flashing N9005 firmware but I wouldn't hold your hopes too high.
Click to expand...
Click to collapse
thank you for the fast reply. its a china dual sim model. how do i tell if its snapdragon? and if its possible how should i go about doing it?
Yup it's Snapdragon - Only N900 has Exynos (my bad should have realised straight away) ---
In regards to flashing, you need to read A LOT on here about the different flash routes you can take, compatability and methods. And be ready to be able to flash back to the software that it is on currently or you could end up with a bricked device. Once you have read up on everything, you can then decide if you feel you can flash your device or not, or if the device can handle it without messing it up.
Although saying that *eureka!*. Have a look if you can change your CSC/Modem radio -- that may work rather than trying to flash a new firmware.
radicalisto said:
Yup it's Snapdragon - Only N900 has Exynos (my bad should have realised straight away) ---
In regards to flashing, you need to read A LOT on here about the different flash routes you can take, compatability and methods. And be ready to be able to flash back to the software that it is on currently or you could end up with a bricked device. Once you have read up on everything, you can then decide if you feel you can flash your device or not, or if the device can handle it without messing it up.
Although saying that *eureka!*. Have a look if you can change your CSC/Modem radio -- that may work rather than trying to flash a new firmware.
Click to expand...
Click to collapse
how could i go about checking to change the csc/ modem radio?
Have a look around the development section and you should find Modem radios/CSC files etc -- have a read and see what is there and if others have had similar issues, you may also find someone in that sub-forum with a wealth of knowledge regarding changing stuff (far more than me at least)
hopefully anyone else who has any experience would be able to shed some light on this matter
Theres not much research in n9009 cuz nobody has them
If i were you id try to flash a signapore csc and modem but no whole FW
hit 'thanks' if i helped you
SM-N9005 DBT-DMJ7 0x0
XDA Developers 4 premium app
Ok I'm just a little confused.
Canadian i337m compatible marshmallow roms?
Are they jflteatt jfltexx i9505 or something else or all of the above.
(I'm running wamanlite 4.4.2 9505 rom now on my jfltecan I don't think there are any good links for it left, and when I flash a new one there will be no going back)
I know there are others confused out there as well..
If you are using marshmallow and you have flashed the rom to your Canadian s4 and all is working great.
Please post a link to that rom here
If you needed some other kernel or file to flash in to make it work
Please post that info with links also.
Thanks for any info you can provide.
(And bite me Samsung att and others for locking so many U.S. carrier boot loaders which has reduced development)
The s4 should work with the 9505, jflteatt, and jfltexx ROMs; however, editing the updater script may be required to get the ROM to install.
Hahaha - you will likely get yelled at to use the search bar and to read the stickies with these sorts of questions, but I was a noob once too, so here's an olive branch. (that being said, please do use these in the future!)
Your i337m will be cross-compatible with ALL GS4 devices (at least to my knowledge). I've had one now for a little over 4 months and have explored most of the options available to the Canadian variant. I have run everything from 4.2.2 to 5.1.1 on my device successfully, but you will have the most luck where the developer indicates that the build is for jflte devices in general, not one in particular.
Furthermore, the GS4 or ANY device sporting a Qualcomm chipset can use a modified modem file to access WCDMA/HSPA bands (ie. WIND, or T-Mobile).
Again, the search bar is your friend here! Also try Google, or Duckduckgo (google will tailor your results, sometimes in a way which will actually hinder your search).
If all else fails, send me a PM and I will assist you wherever possible.
Best of luck!
Graysonh said:
Hahaha - you will likely get yelled at to use the search bar and to read the stickies with these sorts of questions, but I was a noob once too, so here's an olive branch. (that being said, please do use these in the future!)
Your i337m will be cross-compatible with ALL GS4 devices (at least to my knowledge). I've had one now for a little over 4 months and have explored most of the options available to the Canadian variant. I have run everything from 4.2.2 to 5.1.1 on my device successfully, but you will have the most luck where the developer indicates that the build is for jflte devices in general, not one in particular.
Furthermore, the GS4 or ANY device sporting a Qualcomm chipset can use a modified modem file to access WCDMA/HSPA bands (ie. WIND, or T-Mobile).
Again, the search bar is your friend here! Also try Google, or Duckduckgo (google will tailor your results, sometimes in a way which will actually hinder your search).
If all else fails, send me a PM and I will assist you wherever possible.
Best of luck!
Click to expand...
Click to collapse
Just wondering what modem to use. Do I use the latest modem for I337M or can I use modem for I9505. I live in Canada and have always used the modems for the I337M model. The latest modem is PA1, I think for the I9505.
Hey tvsite,
Modems for this phone in Canada puzzled me for quite some time, however, this is what I did to make things work.
--> Downgraded from 5.1.1 CM 12.1 Optimized via odin using "I337MVLUAMDJ_I337MOYAAMDJ_VMC.zip" (http://www.sammobile.com/firmwares/download/14412/I337MVLUAMDJ_I337MOYAAMDJ_VMC/)to net me 4.2.2 (note: your wifi or calling WILL NOT WORK).
You may have even better luck using the SaskTel firmware at this point, although I have not tried it yet. (http://www.sammobile.com/firmwares/download/14418/I337MVLUAMDJ_I337MOYAAMDJ_BWA/)
--> Do the AWS mod, unlocking etc.
--> Upgraded to 4.4.1 using "I337MVLUFNC1_880525_REV06_user_low_ship_MULTI.tar"
https://mega.co.nz/#!h8pTnCZS!t2-PiSb5W9ZyNp7fct7WD_Pg_dnc-eZqtMvpsuKv_9Q
--> I forget what modem I was on at this point, however, after letting OTA do its thing, I wound up at 5.0.1, OH1 modem, and AWS still enabled.
Good luck!
Graysonh said:
Hey tvsite,
Modems for this phone in Canada puzzled me for quite some time, however, this is what I did to make things work.
--> Downgraded from 5.1.1 CM 12.1 Optimized via odin using "I337MVLUAMDJ_I337MOYAAMDJ_VMC.zip" (http://www.sammobile.com/firmwares/download/14412/I337MVLUAMDJ_I337MOYAAMDJ_VMC/)to net me 4.2.2 (note: your wifi or calling WILL NOT WORK).
You may have even better luck using the SaskTel firmware at this point, although I have not tried it yet. (http://www.sammobile.com/firmwares/download/14418/I337MVLUAMDJ_I337MOYAAMDJ_BWA/)
--> Do the AWS mod, unlocking etc.
--> Upgraded to 4.4.1 using "I337MVLUFNC1_880525_REV06_user_low_ship_MULTI.tar"
https://mega.co.nz/#!h8pTnCZS!t2-PiSb5W9ZyNp7fct7WD_Pg_dnc-eZqtMvpsuKv_9Q
--> I forget what modem I was on at this point, however, after letting OTA do its thing, I wound up at 5.0.1, OH1 modem, and AWS still enabled.
Good luck!
Click to expand...
Click to collapse
I flashed the OK1 modem which is posted, here, which is for the I337M model. I believe this is country code Mexico. This modem is working fine. Have you tried flashing a I9505 modem using Odin. I tried and it said "failed", so I may have answered my own question---that you cannot flash modems over different model numbers even though its the same phone, ie. S4
1. Is it okay if i just dont root the device sm-n900k and just flash the sm-n9005 firmware from sammobile? I just want to try and change firmware because i can't update the version, still stucked at 4.4.2 having some problems with signal, korean apps and the shutter sound of the camera.
Thank you
Personally, I would not try it as it may brick the phone. The 900k uses a Samsung Exynos processor and the n9005 uses a Qualcomm.
http://www.imei.info/phonedatabase/14281-samsung-n900k-galaxy-note-3/
Are there any other site except sammobile that offers firmware? I just want to update my phone to lollipop version but i am also scared to unlock the bootloader because i cant find a guide and btw im not sure if the bootloader is locked or maybe i just can't find a compatible custom recovery for my phone
Traditionally Korean model has had slightly different hardware making them incompatible with international variants (TV antenna for example on the S1/S2). However, at least from forum posts here N9005 custom ROM should work fine, as long as you keep your old modem.
Although, there should be an official 5.0.1 ROM around with a GOF2 ending, considering the existence of a Lollipop bootloader for it. Have you tried just plugging it into Kies and check for update?
(If you want to give it a shot, here is the baseband + bootloader: https://mega.nz/#F!0MNyVboS!XpjPYizNyY7LPZdsepyTFw . Flash this then a 5.0 custom ROM and you should be good to go)
@audit13 N900K is Snapdragon. Exynos doesn't have LTE, but all Korean model has LTE (different bands for different networks though)
@thebulletfromhell, I am not familiar with the n900k and I based my information on the link in my post above yours. I looked at several site and they specifically mention the Exynos. This one also mentions LTE: http://welectronics.com/gsm/Samsung/SAMSUNG-SM-N900K-GALAXY-NOTE-3-4G-LTE-BLACK.HTML
I know you can't believe everything you read on the internet. Thank you for the information.
I saw that too, but it was the only site that mentioned it, so I looked further. Info on Korean models are pretty rare in English, as the hardware for the most part is incompatible with Network Bands in the English speaking part of the world, making grey import iffy, and thus no reason to write about them.
Hi,
I have a G900F I got in the UK and I've just moved to Canada with. Problem is it doesn't support some of the bands here so I find I often have a poor signal. I'm happy with the stock ROM but I believe if I am to open it up for all bands I need a custom ROM.
I don't need anything too flashy, but I'd like everything to work and be responsive.
In terms of the most complete ROMs it seems LineageOS Official and Resurrection Remixed are the most popular. Can anyone comment? How about Android 6 vs 7?
Thanks
Used to use resurrection but now that I've moved to lineage os I can say that its better and getting improved every update it gets
Beaksterboy said:
Hi,
I have a G900F I got in the UK and I've just moved to Canada with. Problem is it doesn't support some of the bands here so I find I often have a poor signal. I'm happy with the stock ROM but I believe if I am to open it up for all bands I need a custom ROM.
I don't need anything too flashy, but I'd like everything to work and be responsive.
In terms of the most complete ROMs it seems LineageOS Official and Resurrection Remixed are the most popular. Can anyone comment? How about Android 6 vs 7?
Thanks
Click to expand...
Click to collapse
g900f is almost identical if not the exact same as the canadian s5 g900w8.
you would need to use correct freq for your carrier, search will provide a howto. worse case scenario is to flash a canadian 6.0.1 modem from any canadian 6.0.1 stock fw
if trying to figure out connectivity, stay w/stock first as modems are from stock fw.
imo try superlite 6.0.1, it stock based and only takes a few minutes to install that way you can test out your carrier connectivity issues
https://forum.xda-developers.com/ga...-superlite-mini-mm-v1-0-361mb-g900w8-t3497158
So I can keep my stock firmware and just replace the G900F baseband (G900FXXS1CQAV) with the Bell Canada SM-G900W8 Modem and everything will be the same except the phone will work on the Bell Canada frequencies?
I had been planning to follow this guide: https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059 to enable the 1700MHz band which is disabled on the G900F, but if flashing a Canadian modem will enable this band that sounds easiest.
Do I need to download the full 1.5GB firmware and extract the modem from it?
Thanks
Beaksterboy said:
So I can keep my stock firmware and just replace the G900F baseband (G900FXXS1CQAV) with the Bell Canada SM-G900W8 Modem and everything will be the same except the phone will work on the Bell Canada frequencies?
I had been planning to follow this guide: https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059 to enable the 1700MHz band which is disabled on the G900F, but if flashing a Canadian modem will enable this band that sounds easiest.
Do I need to download the full 1.5GB firmware and extract the modem from it?
Thanks
Click to expand...
Click to collapse
ive never tried flashing a mdm from another model as ive never needed to for the s5.
ive not read enough to know if its possible or if it has any neg consequences.
easiest would be to change freq w/current mdm, search for samsung secret service codes to view and maybe change current freq
good place to start is here https://forum.xda-developers.com/showthread.php?t=2729694
I've done a lot of research on this forum. Most people say that installing G900W8 firmware on G900F isn't possible. Also it seems that it is the NVRAM which stores what bands are allowed on what model, so simply flashing a different modem won't make a difference.
Some people are saying that the hardware is different and this is what limits the bands, but I don't believe so, the radio/modem chip is the same version between models.
Trying to follow the link I posted earlier to change the NVRAM values after installing a custom ROM appears to be the only way. Some people say it works, and others say it only appears to work. The original thread was closed years ago so I guess I'll just need to try it and see.
Alternatively I could buy 2 phones, one W8 to use in Canada and a F to use in Europe, this seems silly though.