I have tried many combinations and guides, I cant find anything about switching from this build? Can it be done and what files do I need.
Its a ATT Note 8 that I want to use on Verizon MVNO (Total Wireless). On ATT firmware I can only get 3G working. Only reason I need to switch.
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Hoping I can get some help here as I've been working on this for about a month now. I've seen quite a few people with this same problem but found no solutions so far. So I'm trying to modify stock and custom ROMs and stock firmware to work on my G900P. I'll upload the resulting files to share with others who need them. Not looking to be spoon fed, just looking for some guidance.
I bought a Galaxy S5 from a Canadian shop on Ebay. It's a G900P, from Sprint. I'm on Petro Canada Mobile (Rogers) and the stock G900P firmware won't allow me to make calls, text, or use data. It also has all the Sprint bloatware, which I want to get rid of. I've rooted the phone and flashed some ROMs (SuperLite and S5 DreamUX A7 V2) and they do work, albeit in a limited way. With these ROMs I can make calls, text, and use data, but I can not get Rogers higher bands because the phone seems to be stuck on the CDMA (all the firmware and ROMs I've used all use CDMA in the code of the files) settings or some other issue, (most likely through CSC files and build.prop) and can not change to APN protocols to enable IPv4/IPv6 (the option is on IPv4 and greyed out so I can't change it. My carrier uses GSM (850/1900 Mhz, GPRS, Edge), UMTS (B2 1900 PCS, B5 850, 3G, HSPA+ 3.5G ) , and LTE (B4 1700/2100 AWS 1, B7 2600, B17 700 bc). I've spoken with a tech and they said the G900P is compatible will all the bands except the LTE bands. They never mentioned whether this was due to firmware or hardware restrictions.
I've played with the build.prop files, and the Sprint CSC files but nothing has worked so far. So what I'd like to do is modify either the GP900W8 firmware to be compatible with the G900P phone, or the G900P firmware to be compatible with the carrier. If this isn't possible I'd like to customize an existing ROM to do the same. From what I've learned so far it seems I need to modify the build.prop and CSC (and possibly other files) to use the bands my carrier uses instead of the CDMA bands, but I haven't used the correct code or modified the correct lines, or missed something in another file, etc.... I'd also like to try and get this phone to be able to use the LTE bands if possible.
Any help with this project would be greatly appreciated. Thanks in advance.
P.S. If this isn't possible and someone knows of a ROM or firmware I can use on my carrier and get the higher bands could you please let me know. I'm still gonna work on this project, but would like to use my phone while I do it LOL.
https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
Hi, I'm new here but have been using the site for a long time to root several phones of mine over the years. I have a question. I just bought the Galaxy s6 for US Cellular but I have a Cricket SIM and the phone is factory unlocked so when I got it, I had to set up APN to use and now shows as ATT. Cricket ,ATT same company now, I know. The question is, is there a way I can either put this phone on ATT or Cricket stock rom? I have issues with signal bars and I really want Wifi Calling as a bonus. Tried flashing ATT ROM with Odin and 5 files but no luck. PIT failes to re-partition. Any help? Thank you.
We finally made the switch to Verizon back on Monday due to inconsistencies with US Cellular's local coverage in our area. Inconveniently, I had just upgraded to the USCC variant of the Note 9 in early September, so when the Verizon agent initially tried to change the phone over, I was informed that it was the outstanding balance that prevented him from doing so (which made sense at the time). Under the impression that this was all that would be required, I just zoomed over to the US Cellular store next door to pay off that $800 or so remaining on the line, thinking I was in the clear. Of course, it would only be after this that the agent finally realized that compatibility wasn't quite as clear-cut as they had initially thought...
So I apologize in advance for what I feel may be a stupid question, but I haven't been able to find a solid answer on this:
I (now) know that the US carrier-specific models of the Note 9 tend to only come preloaded with the CDMA/LTE frequency bands they use in their respective networks, and that while there is some overlap and crossover, just swapping out one carrier's SIM for that of another still limits you to the original spectrums that came on the phone. However — will the process of flashing the firmware to the correct corresponding carrier for the new SIM also change the frequency bands so everything matches up, or is this something that's entirely hardware related that can't be bypassed?
And to avoid anyone breaking things if this does turn out to be a feasible option, I would assume this would still only work for those in my situation, i.e. trying to flash from an already comparable CDMA capable version of the phone to another CDMA capable version with otherwise equivalent hardware specs and processor (so no GSM-only to CDMA, no Snapdragon to Exynos, etc.).
As has been discussed many times here...ALL the US Note 9s are identical. Same exact hardware. They all support the same bands. The only difference is firmware. And actually with Pie, they will all run the same firmware, just like the Note 8.
You have two options:
1. Carrier branded firmware which will keep WiFi calling and VOLTE working.
2. Unbranded U1 firmware, which is a clean bloat free firmware, but no Wifi calling or VoLTE (unless you're on T-Mobile)
To change firmware, download thr most recent firmware of your choice using the SamFirm tool. Then flash it with patched ODIN 3.13.1. This will wipe your device, so make a backup.
Hello all,
I have a T-Mobile variant of the S10. I desperately need wifi calling and the option is not there since I switched to Verizon (same T-Mobile variant S10). I'm assuming this is a software limitation and I need the Verizon bloatware. Anybody know if flashing Verizon will work? I'm assuming I just use Odin and the stock rom. Been awhile since I've messed with all this stuff. Is there a good tutorial to look at? Thanks for any help!
Flashing the Verizon firmware will probably do it, if it has wifi calling. I know the AT&T firmware has wifi calling because I am on it. You have to have a snapdragon though, flashing to an exynos variant won't work.
Just got mine today, How does one enable carrier config? I got the U1 model and I assumed just like my S9 flashing the carrier U model and changing sims would result in getting the bloatware for whichever sim inserted but after flashing a regular U firmware its still XAA . Carrier bloat from flashing userdata is there, but CDMA calling doesnt work on Verizon only over VoLTE which is the reason I'm doing this. A lot of areas LTE is spotty and phones wil drop to 1X/CDMA 3G and the U1 firmware is not allowing CDMA calls. Which U1 firmware on my S9 wouldnt make calls over CDMA either until I flashed the normal U firmware.
Thanks!