My model number changed, how do I change it back? - Galaxy S6 Edge Q&A, Help & Troubleshooting

I have the T-Mobile S6 Edge (SM-G925T) and recently when checking what devices were authorized, I saw I had two S6 Edge phones registered. I decided to check, and sure enough my model number was randomly set to SM-G925K. I haven't flashed a ROM in months, so it isn't that. No build.prop edits either. I honestly have no clue what could have caused this, but it changed about a week ago without me realizing it.

Gatortribe said:
I have the T-Mobile S6 Edge (SM-G925T) and recently when checking what devices were authorized, I saw I had two S6 Edge phones registered. I decided to check, and sure enough my model number was randomly set to SM-G925K. I haven't flashed a ROM in months, so it isn't that. No build.prop edits either. I honestly have no clue what could have caused this, but it changed about a week ago without me realizing it.
Click to expand...
Click to collapse
just edit it in the build.prop to your original model

Related

Mobile Network State : Disconnected. Cannot make calls.

Greetings
Today I upgraded my ATT Galaxy S2 to the ICS rom that appeared recently with Odin3 1.85.
Everything went pretty smoothly until I realized whenever I tried to make a call nothing would happen, the confusing thing is my internet kept working on Edge (since I'm T-mo on an unlocked phone). I tried to check via de *#simlock# command if it was unlocked and indeed it seems to be.
Furthermore I tried to send a text message to myself and it seems to have gone through added to the fact that the internet is there, the only problem is the calls.
I checked the IMEI and it seems to be fine, I did a factory reset and nothing happened.
During my exploration of the phone I found that it said, as the title implies, Mobile Network State: Disconnected which freaked me out.
I also tried resetting the mobile networks to default but nothing is working I'm kind of desperate (I usually avoid posting as opposed as researching) and have been searching online for near 2 hours I would appreciate any help.
Thanks
SO many things wrong.
Terracio said:
Greetings
Today I upgraded my ATT Galaxy S2 to the ICS rom that appeared recently with Odin3 1.85.
Click to expand...
Click to collapse
ATT Galaxy S2 is the SGH-I777. You are in the GT-I9100 forums. If you really do have an I777, and flashed an I9100 firmware to your I777, then this is likely the source of your problems. The I777 and I9100 have SIMILAR hardware to where a flash wouldn't kill your phone, but things wouldn't work right. Sounds like what you are describing.
Terracio said:
Everything went pretty smoothly until I realized whenever I tried to make a call nothing would happen, the confusing thing is my internet kept working on Edge (since I'm T-mo on an unlocked phone). I tried to check via de *#simlock# command if it was unlocked and indeed it seems to be.
Click to expand...
Click to collapse
You say you have an ATT Galaxy S2, but here you say you're on T-Mobile. Are you in the US? If you're on the US, how did you get an ATT Galaxy S2 on T-Mobile? ATT phones are usually SIM locked. Also, T-Mobile has their own Galaxy S2 model, which is the SGH-T989. Totally different hardware. If you DO have an ATT model, and are on T-Mobile, then you are probably getting abysmal mobile data speeds. The ATT model will only get Edge speeds on T-Mobile's network, and vice versa, the T-Mobile model will only get Edge speeds on ATT's network.
EDIT: Oh, I re-read that. I see you recognize you will only get Edge on T-Mobile's network when using this device. But that doesn't answer my question. If you have an ATT model (SGH-I777) did you SIM-unlock it?
Terracio said:
Furthermore I tried to send a text message to myself and it seems to have gone through added to the fact that the internet is there, the only problem is the calls.
Click to expand...
Click to collapse
Again, if you actually have an ATT model (SGH-I777) and you flashed an I9100 firmware, you probably got modem files not meant for your phone.
Terracio said:
I checked the IMEI and it seems to be fine, I did a factory reset and nothing happened.
During my exploration of the phone I found that it said, as the title implies, Mobile Network State: Disconnected which freaked me out.
I also tried resetting the mobile networks to default but nothing is working I'm kind of desperate (I usually avoid posting as opposed as researching) and have been searching online for near 2 hours I would appreciate any help.
Thanks
Click to expand...
Click to collapse
Bottom line, check your phone model. Don't trust the boot screen or the About Phone details, as a firmware flash will change those. Look on the label under your battery. I'm guessing you have an SGH-I777, and you flashed a GT-I9100 firmware.
ATT's Galaxy S2 (SGH-I777) has its own forum.
T-Mobile's (SGH-T989) has its own forum too.
EDIT: Please let this be a lesson. Always be sure you are flashing a firmware meant for your specific model of phone.

Low Lte signal

Hi guys,
I bought a Samsung Galaxy S6 Edge SM-G925F sim free
Build number LMY47X.G925FXXU2COH2
Baseband version G925FXXU2COH2
5.1.1 Lollipop
Previously my Oneplus One on Three network (UK) I would have full Lte signal but on my S6 Edge I only got 2 bars. Changing to WCDMA/GSM I get great signal and in speed test is actually faster than LTE.
I'm not rooted and I'm wondering if this is a software problem or hardware, and if flashing a different rom would help?
I don't mind tripping only if it will fix the problem.
Thank in advance.
I got s6 edge+ last week. Bad reception. Changed the phone, in the AT&T store. The second phone is even worse.
Initially the store employee told me that there are no new phones in Stock in their store. But he said he found one.
Since the second phone is even worse, is it be possible that, the store gave me a defective phone returned by a prior customer?
He opened the box in front of me. But I am not sure, it's brand new.
But anyway my replaced s6 edge + is even worse.
Folks, any suggestions?
I'll wait for the next update (marshmallow) and see if iit makes any difference.

Samsung Galaxy S6 Edge Sm-G925V/Sm-G925R6

Hi i have a Samsung Galaxy S6 edge Sm-G925R6 that im trying to return back to stock firmware.
The phone is from a cell phone service provider called CellCom out in Wisconsin. Cellcom uses Verizons towers to get LTE out in rural areas of Wisconsin
I purchased the phone and thought it would be an easy fix returning back to stock. The previous owner did not know what he was doing as he loaded the rom and forgot to make a back up of his Stock Firmware
The full model number of the phone is Sm-G925RZWALRA on the back sticker of phone with imei
on the box sleeve model number: SMG925RZWAL
which from my understanding the last 3 letters "LRA" stands for LTE in Rural Areas
The Fcc ID:A3LSSMG925V
Baseband Version G925R6WWU2AOF2
I am currently running CleanROM 1.5-Edge OE2 for the Verizon S6 edge with no issues besides having to sign back into my wifi
and all other Verizon Roms work fine on the phone as well.
Im currently using T-Mobile in Chicago on the phone with no issues and full LTE speeds working
But i would like to use The android pay app as sometimes i am forgetful and tend to forget my wallet. And with custom roms the android version can not be verified
I have tried using the stock firmwares for verizon both 5.1 and 5.0.2 to try to return the phone to stock but it fails in odin.
I have also tried using US Cellulars Stock firmware since theyre model number the galaxy s6 Edge is SM-G925R4 pretty similar to mine as mine is Sm-G925R6 but that has also failed in Odin.
I do like the debloated Rom but would rather have Android pay just in case of emergencies .
Thanks in advance for any help.
Omg glad that I'm not the only one with the cellcom version, I have been looking everywhere for what to do since I didn't want to install the wrong firmware and brick my s6 edge I have the same model number but I updated mine the day I got it which didn't change the android version. Finally, 5 minutes ago found a stock rom it's for a appellation wireless, same mode number "smg925r6wwu2aof2" as me. LINK
----------------- https://drive.google.com/file/d/0Bwna7hZykYnnZzJOVDI4X3I5b2c/view -------------------
Where did u find ur rom? Can i just use any rom for s6 edge? I want to ask before I take my chances and mess up my phone, since I see you are more brave than me, I rely on having a phone.
ohseriously? said:
Omg glad that I'm not the only one with the cellcom version, I have been looking everywhere for what to do since I didn't want to install the wrong firmware and brick my s6 edge I have the same model number but I updated mine the day I got it which didn't change the android version. Finally, 5 minutes ago found a stock rom it's for a appellation wireless, same mode number "smg925r6wwu2aof2" as me. LINK
----------------- https://drive.google.com/file/d/0Bwna7hZykYnnZzJOVDI4X3I5b2c/view -------------------
Where did u find ur rom? Can i just use any rom for s6 edge? I want to ask before I take my chances and mess up my phone, since I see you are more brave than me, I rely on having a phone.
Click to expand...
Click to collapse
Dead link

SM-G965F on T-Mobile, what are my options?

So I learned the hard way that you can't have it all.
I travel for work quite a bit and I was in the Middle East working when my Verizon S7 Edge started to have problems. I looked for a replacement in Dubai and was happy to find the S9+ at a reasonable price and with the 256GB option (which I wasn't finding in the US). I popped in my Verizon sim and life was good.
Then I returned to the US and. nothing. worked. I had forgotten that Verizon was strictly CDMA in the US and this phone had no CDMA radio.
I also was noticing that the samsung pay app was locked to the UAE version which was annoying but not a huge issue...I couldn't add American Express credit card which may or may not have been due to that region setting.
So in order to actually get service I switched to T-Mobile and have had decent data rates. However the phone doesn't use volte or wifi calling which is very bad since where I am staying is somewhat of a dead spot for mobile coverage. I basically can't receive phone calls here and making a call requires me to wait about a minute for the phone to figure out what protocol to connect to (dowleveling to either a 3g or H to actually connect and dial).
My initial research tells me that I don't want to root the phone and lose all ability to use samsung pay, but I would love to do as much as I can to the phone to get it working as best as possible.
Can someone chime in here to let me know what's possible? I don't want to experiment too much, and it's been rare over the years for me to keep up with all the root/firmware/rom etc. that has become available. My last real era of rooting phones was many years ago with iPhone and even then it was a lot to keep up with.
thanks in advance!
bump.
Anyone?
I had the same issue. I ended up rooting to get TMobile volte/wifi-calling. Also, by rooting you can also use Verizon Wireless; however, only with LTE.
You could use Google Pay lol.
Furthermore, I suck at giving reasons, but that's what I did.
Don't quote me on this, but from what I understand, you can use the patched ODIN and flash the firmware's CSC outside of it's region and change it to XAA. There is also a guide to changing CSC without root that may work as well.
From what I understand, the G965F is unable to load the XAA csc without root since it is only for the Snapdragon version
I ended up using Tekhd's tmobile detonator after I bricked my G965F/DS atleast 3 times. It works great now.
The way to change csc without root is via a combination rom and using Realterm. Using TMB CSC on a global G965F/DS ROM will end up in a PUK code lock. I tried ALL the US CSC on my G965F to confirm this.

Sprint S21 on Verizon - Splash Screen & Wifi Calling

I have an S21 that I purchased from Sprint. When using on Sprint the startup splash screen was yellow with the Sprint logo and when I switched to a T-Mobile sim card the splash screen was updated to magenta with the T-Mobile logo. Now that I've moved to Verizon the splash screen hasn't changed. Any way to update it? Also, since moving to Verizon I have lost the setting for wifi calling to be enabled. Is there a way to get that back?
Okay, so some extra searching told me that apparently my CSC wasn't updated from TMB to VZW when I switched my sim card. Unsure whose fault that is, but is there a way to update it without paying for SamKey? Is there any actual benefit to updating from TMB to VZW, or am I wasting my time?
Mustang46L said:
Okay, so some extra searching told me that apparently my CSC wasn't updated from TMB to VZW when I switched my sim card. Unsure whose fault that is, but is there a way to update it without paying for SamKey? Is there any actual benefit to updating from TMB to VZW, or am I wasting my time?
Click to expand...
Click to collapse
Hi
Regarding changing CSC without paying , maybe if you are lucky you could try the dialer method , check here also read this thread , if this do not work SamKey may be your last option( without rooting)
Regarding the benefits of changing CSC.... in your case i do not know
MAX 404 said:
Hi
Regarding changing CSC without paying , maybe if you are lucky you could try the dialer method , check here also read this thread , if this do not work SamKey may be your last option( without rooting)
Regarding the benefits of changing CSC.... in your case i do not know
Click to expand...
Click to collapse
Thanks, I did try the dialer option already, no dice.
Just thought I'd update this to let everyone know that I go the update to Android 12 today, and when the update finished my phone realized it had a Verizon sim card and the CSC was finally updated!
It's a small win, but I'll take it.

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