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I successfully flash from Roto pre-rooted JME v4 rom back to stock ATT rom ( also provided by Roto ), and to JME v4 again.
What I did in last couple of days:
I got the ATT tab and didn't activate the SIM card. I rooted the tab and flashed the tab with Roto pre-rooted JME v4 rom ( as mentioned in many posts, root is not a pre-requisite of flashing Roto's rom ).
I used an iPhone SIM card in the Tab. Both the voice and data worked. I even got 'H" ( HSUPA) on the signal bar while the iPhone with the same SIM card only shows '3G', probably because I flashed the Tab with Bell modem.
However, I found it is not very convenient for me to use the Tab as the main phone. So, I want to activate the original SIM card that comes with the Tab and only use data on Tab, which I thought I could only do that by using the stock ATT rom ( if anyone knows a different way, you can share it ).
So, I used odin and flashed the ATT stock rom posted by Roto. The flash process is very easy. NO re-partion, no PIT, no modem. I just put the ATT stock rom into 'PDA' part in the odin and click 'START'.
After I flashed Tab back to the stock rom, I even got back the Samsung logo. No more black screen with bright line. Everything seems to be back to original state except that the tab still shows it is rooted when I check the firmware version ( I used super 1 click to root the Tab. Tried different ways to un-root. But the kernel still shows 'root'. If anyone knows how to completely unroot, please let me know. Thanks).
Since the original SIM card has been activated, I thought it might be better to flash the Tab again to JME and Bell modem. So, if I really want to use a SIM with voice plan, I can.
Flashing to Roto's JME v4 for the 2nd time was very easy again. I just followed the quick tutorial in this forum ( I did the re-partition. maybe it is not needed). Everything went smoothly. The only caveat is that I got the single bright line with black screen during booting for a couple of seconds.
Now, I am back on JME with Bell modem and original data-only SIM card. I set the APN to the settings for data-only SIM. The original SIM card just works.
I found a lot of ppl asking about flashing back to stock rom. I feel it may be useful to share my experience. Sorry for I didn't put the references to the posts regarding flashing and rooting.
Big thanks to Roto.
I do have a few questions for this whole process:
1. How to un-root?
2. I am now using the JME rom. I saw 2 APNs in the mobile network settings. 1 for AT&T activation used to activate the SIM with voice plan, another for ATT Broadband used by data-only SIM. The activation APN for SIM with voice keep coming back even after I deleted it. And it also seems it takes a lit too long in 'checking SIM' during booting. Does anyone know how to remove the activation APN?
I am afraid I can not answer your question however I do have a question for you. I am still running stock firmware and plan to upgrade soon. However would like to be able to get to same stock version I have now if possible. Can you list the baseband/firmware of the stock AT&T you obtained and rolled back to?
Sent from my SGH-I987 using Tapatalk
cbb77 said:
I am afraid I can not answer your question however I do have a question for you. I am still running stock firmware and plan to upgrade soon. However would like to be able to get to same stock version I have now if possible. Can you list the baseband/firmware of the stock AT&T you obtained and rolled back to?
Sent from my SGH-I987 using Tapatalk
Click to expand...
Click to collapse
I used the Roto's stock ATT rom. The firmware version is xxxxUCJK1. I believe that is the right stock firmware version as I have also seem it been mentioned in various other websites.
Since you are still using the stock rom, it is good opportunity for you to back up everything:
Roto Backup - http://forum.xda-developers.com/showthread.php?t=850359
Thanks. That is the current version I am running. I will probably upgrade this week. I have already taken a Roto backup as well as used Titanium Backup. I also have screen shots of every screen I could bring up. I think I am all set; just need to pull the trigger and do it.
Sent from my SGH-I987 using Tapatalk
onemoredeal said:
1. How to un-root?
Click to expand...
Click to collapse
I was able to unroot with SuperOneClick, will now be flashing back to AT&T stock!
UPDATE 1 - Oops...Odin stays stuck at "SetupConnection", any tips on circumventing that? A search didn't find any fix for now :-(
UPDATE 2 - ok, started with ON+Volume down and Odin worked...BUT I get the AT&T splash screen and then it goes to the "recovery menu" (the one you get with ON+Volume Up")
The yellow lines read :
update media, please wait
update media, finished
# MANUAL MODE #
-- Appling Muti-CSC...
Installing Muti-CSC
Any way to get out of this mess ? Thanks !
UPDATE 3 - taking the SIM card out solved that, phew !
Help me please
I need a rom for my s7 model g930p
I install one of SamMobile (PH7) but does not recognize my chip is MOVISTAR
He recognized well before my chip
I just remember that the ROM that came with the cell was PC5
and now that you install the PH7
As I can sort out my network signal?
Rom stock that you recommend?
please help me
http://forum.xda-developers.com/sprint-galaxy-s7/how-to/g930pvpu2apf2g930pspt2apf2spr-zip-t3417995
do you know how to flash through odin and restore to stock? this pf2 package is my prefered go to for stock
you think installing this rom
I will come out in the notification bar icon to activate data
rom flash all Samsung and none has worked for me
PH7 rom not recognize my chip
I get a message
Connection problem or invalid MMI code
Thank you for responding and helping
defapper said:
http://forum.xda-developers.com/sprint-galaxy-s7/how-to/g930pvpu2apf2g930pspt2apf2spr-zip-t3417995
do you know how to flash through odin and restore to stock? this pf2 package is my prefered go to for stock
Click to expand...
Click to collapse
Im having a bit of a hard time understanding,are you talking about hands free activation? You can disable that by unistalling or disabling them, if your problems the service with your provider it can be your apn settings can you post screen schots
Hello all,
I want to switch to Verizon but I don't have a verizon sim to test my phone, I just got it unlocked through the unlock app. I've also read this post,
https://forum.xda-developers.com/tm...izon-galaxy-s7-edge-t-mobile-network-t3399618
but there is no confirmation if he found a solution.
any feed back would help.
Well i live in Mexico, but i own a galaxy s7 edge from tmobile and to try nougat i installed first the Verizon version, and it work well, the only issue was to setting the data configuration, now i use the At&t nougat and everything still even more perfect (the verizon nougat have a lot of little bugs)
bounddyy said:
Hello all,
I want to switch to Verizon but I don't have a verizon sim to test my phone, I just got it unlocked through the unlock app. I've also read this post,
https://forum.xda-developers.com/tm...izon-galaxy-s7-edge-t-mobile-network-t3399618
but there is no confirmation if he found a solution.
any feed back would help.
Click to expand...
Click to collapse
Using a Tmobile S7 Edge going to Verizon won't work cause of a few reasons.
1. TMOBILE S7 and S7 edge are not built for CDMA networks that uses certain bands and network. Along with the security of CDMA networks.
2. There is no band 13 on tmobiles S7 and S7 Edge. Even you were to unlock it.
But going from CDMA to GSM most phones work due most of the hardware and software is already built in the phone.
Sent from my SM-G935T using XDA-Developers Legacy app
I can confirm this. Yes, your unlocked T-mobile S7/Edge will work with Verizon network if you flash the U firmware. I'm currently using my unlocked T-mobile S7 Edge with the U-firmware on the Verizon network. Voice, text, data work fine. No issues for me.
bounddyy said:
Hello all,
I want to switch to Verizon but I don't have a verizon sim to test my phone, I just got it unlocked through the unlock app. I've also read this post,
https://forum.xda-developers.com/tm...izon-galaxy-s7-edge-t-mobile-network-t3399618
but there is no confirmation if he found a solution.
any feed back would help.
Click to expand...
Click to collapse
You can flash the stock Tmobile ROM or the U firmware. The only reason I got a new S7 when I jumped from big red was I had a huge scratch on my screen. I was running the U firmware when I went into tmobile and used the girls sim card from her phone to prove I could do it...
Sent from my SM-G935T using XDA Premium HD app
Don't know but I am on T-Mobile and I use alot from Verizon thread no issues so far
OK, so I have a question. I'm also trying to move from t-mobile to Verizon but I'm trying to keep my same phone. My phone is already paid off and i currently running t-mobile's SM-G935U over SM-G935T. But a couple of days ago i asked a friend to let me barrow his verizon sim card to test it out. But received a message saying "Invalid sim Card" "network locked SIM card inserted." Did i messed up something during the installation of the SM-G935U?
edgtv said:
OK, so I have a question. I'm also trying to move from t-mobile to Verizon but I'm trying to keep my same phone. My phone is already paid off and i currently running t-mobile's SM-G935U over SM-G935T. But a couple of days ago i asked a friend to let me barrow his verizon sim card to test it out. But received a message saying "Invalid sim Card" "network locked SIM card inserted." Did i messed up something during the installation of the SM-G935U?
Click to expand...
Click to collapse
You need to UNLOCK your phone. It might be a Tmobile phone and running G935U software...but the sim is still locked to T-Mobile. Here is Tmobile unlock page information. you can request unlock in the T-mobile app or by calling T-Mobile....then it should see the Verizon sim and load up just fine once the phone itself is not locked to T-Mobile only sims. https://support.t-mobile.com/docs/DOC-1588
And for anyone else looking at this forum, There is no physical difference in hardware from a SM-G935T phone and a SM-G935U phone. Samsung actually made the hardware the same for all US Variants it is just the software that is different. And not that you would want too but you could load other carriers software on your phone if you wanted too(IE- running Verizon software on a SM-G935T, or ATT or SM-G935U (Stock Samsung Software) The only problem Running SM-G935U is they haven't upgraded the unlocked us phones to 7.0 yet. Where T-Mobile and other carriers already have nougat out.
The SM-G935U software however has all the US and even some Chinese LTE bandwidths enabled, and it also enabled the CDMA bandwidths to be used on the SM-G935 phones...hence why it will work with Verizon, Sprint, and even US Cellular if you can get them to put it on the account.*(I haven't dealt with US Cellular in years and with the new laws on moving phones from carrier to carrier in the US they might not have any issue with Bring your own phone to US Cellular anymore I do not know!)
lubu81 said:
I can confirm this. Yes, your unlocked T-mobile S7/Edge will work with Verizon network if you flash the U firmware. I'm currently using my unlocked T-mobile S7 Edge with the U-firmware on the Verizon network. Voice, text, data work fine. No issues for me.
Click to expand...
Click to collapse
lubu81 is there a step by step process to unlock and setup/flash/install phone completely to be able to use with Verizon?
cchavez136 said:
lubu81 is there a step by step process to unlock and setup/flash/install phone completely to be able to use with Verizon?
Click to expand...
Click to collapse
Had you flash any ROM before via Odin?. If so, you will only need to download the verizon firmware (sammobile.com) and flash those files. if not > Open odin (Attached) load all the files accordingly (AP, BL, CP, CSC) in ODIN> put your phone download mode ( pressing fingerprint button + volume down + power) > connect phone to PC > Once all files are ready in ODIN hit start. You will get the success message and phone will boot.
Mr. Clown said:
Had you flash any ROM before via Odin?. If so, you will only need to download the verizon firmware (sammobile.com) and flash those files. if not > Open odin (Attached) load all the files accordingly (AP, BL, CP, CSC) in ODIN> put your phone download mode ( pressing fingerprint button + volume down + power) > connect phone to PC > Once all files are ready in ODIN hit start. You will get the success message and phone will boot.
Click to expand...
Click to collapse
Thank you so much,. when i try to load i get the below message
OSM all threads completed (succeed 0/failed 0)
cchavez136 said:
Thank you so much,. when i try to load i get the below message
OSM all threads completed (succeed 0/failed 0)
Click to expand...
Click to collapse
Exit completely ODIN (make sure you run it as administrator), repeat the process and make sure all files are uploaded (AP takes a long time to upload) make sure to use the CSC file label as HOME_CSC. Try to flash again.
Mr. Clown said:
Exit completely ODIN (make sure you run it as administrator), repeat the process and make sure all files are uploaded (AP takes a long time to upload) make sure to use the CSC file label as HOME_CSC. Try to flash again.
Click to expand...
Click to collapse
Does the phone have to be unlocked before adding these files or does it matter?
cchavez136 said:
Does the phone have to be unlocked before adding these files or does it matter?
Click to expand...
Click to collapse
If you are going to use a verizon sim, you will need to have it unlocked. Firmware flash won't sim unlock/lock the phone.
Mr. Clown said:
Exit completely ODIN (make sure you run it as administrator), repeat the process and make sure all files are uploaded (AP takes a long time to upload) make sure to use the CSC file label as HOME_CSC. Try to flash again.
Click to expand...
Click to collapse
i flashed the rom. afterwards i got an error message with a dead android. after about 5 min it takes me to android recover menu with a log in white that shows a lot of E: failed messages. what do i do now?
unknownsupervillain said:
i flashed the rom. afterwards i got an error message with a dead android. after about 5 min it takes me to android recover menu with a log in white that shows a lot of E: failed messages. what do i do now?
Click to expand...
Click to collapse
Ok, which ROM did you flash and what version of android you previously had in your phone?
Mr. Clown said:
Ok, which ROM did you flash and what version of android you previously had in your phone?
Click to expand...
Click to collapse
Thanks for the quick reply. I thought I was gonna be waiting months. I got it tho. The home csc file wasn't working so I used the other one that reset the phone to stock. It was g935u firmware for tracfone from T-Mobile if that helps anyone in the future.
unknownsupervillain said:
Thanks for the quick reply. I thought I was gonna be waiting months. I got it tho. The home csc file wasn't working so I used the other one that reset the phone to stock. It was g935u firmware for tracfone from T-Mobile if that helps anyone in the future.
Click to expand...
Click to collapse
Great it worked.
I flashed the tracfone rom and everything is working well. I got a software update notification. Should ignore it or is it ok to update?
Bumping the thread...sorry guys. I just jumped ship from Verizon and went to Tmobile today with my S7 Edge along with my wifes S7 Edge. Can I flash her phone with the U firm from TMobile and is the U firmware from tmobile the same U firm that is provided to Verizon? Jist wondering. I've used Odin plenty and understand flash process.
DISCLAMER: I AM NOT A DEVOLPER AND MAY NOT BE ABLE TO HELP YOU ON YOU DEVICE. UNSUCCESSFUL ATTEMPTS TO FLASH FIRMWARE ON THIS DEVICE CAN AND WILL BRICK YOUR PHONE. BACK UP EVERYTHING IN EVRY CONCIEVABLE WAY.
After days of trying to do this with all the outdated guides and miscommunications and edits in post i decided to try and make a streamlined guide to help others.
NOTE: If your are looking for anything else other than a stock bloat free unlocked firmware then look elsewhere.
Also if you are using rev 1 booloader then this will ireversablly upgrade you to rev 2 bootloader not a real problem just a note
Download 3B's patched Odin 3.13 https://drive.google.com/file/d/17wH1YHcGsOCxbDGYDoy9VlnqO_Xi6IOm/view?usp=drivesdk
Download samfirm.exe
https://drive.google.com/file/d/1XdboeTqk8pSZyJQVt-IHVHFfznJ9eOQk/view?usp=drivesdk
Thanks to @zxz0O0
If you can't find your own drivers don't do this
1. Extract B3 Odin
2. Extract and run samfirm.exe
3. Make sure auto is checked use SM-G955u1 as model number and XAA as country code then search. It should find you the absolute latest firmware
Hit download and choose file destination. This can take a while.
4. extract firmware.zip
5. Run 3B's Odin and add file to there respective locations. I.e. Ap file in Ap slot etc. Use the non home CDC
6. The only thing you need ticked in Odin are already set by default
7. Boot phone into download mode power+bixby+volume down while the device is off
8. Read the screen that pops up very carefully and decide to continue at you own risk by pressing volume up
9. Connect phone via USB 2.0 port do not use a USB 3.0 port it will not work
Make sure Odin recognizes device if it doesn't then u have a driver issue
10. Press start and wait patiently
11. Phone will reboot it self setup device and insert sim card. You will probably get a notification say phone not allowed a quick call to the service provider you trying to use is all that's in order here
12. Enjoy your carrier unlocked stock SM-G955u1 on your preferred network
I AM NOT RESPOSIBLE FOR ANYTHING YOU DO TO YOUR OWN DEVICE YOU WERE WARNED.
So this gets rid of all bloatware?
From my knowledge, Verizon does not, and has not ever carrier locked their phones. Seems like a lot of trouble just to debloat.. Am I missing something here?
Any idea why it stucks at "SetupConnection.."
This worked GREAT! My Verizon S8+was working fine on AT&T before I did this, but I was stuck on Android 7.0. So thank you so much for this. There's only one thing that bothers me is in my drop down menu there's a notification that says "Sprint OMADM Checking Device Status." Which really isn't a big deal, it's just annoying. Another thing I worry about is, i'm using it on a GSM network, is it actively searching for a CDMA network at the same time and draining my battery? Any input would be appreciated, and thank you again!
I have a verizon s8 plus does this still work please confirm???
xghostyxjokerx said:
I have a verizon s8 plus does this still work please confirm???
Click to expand...
Click to collapse
The method will be similar just need the proper firmwares for your device
This being quite an old post I was wondering ...
I am currently on G950USQS5CSB1 with CSC XAS/XAA/VZW.
Currently I have no carrier bloat (good), I am on Mint with no issues (good) and I get prompt OTA's I assume for carrier VZW but I lack wifi calling which I would like (bad).
I have downloaded G950U1UES5CSB2 for G950U1
Will this work using the 3B modded Odin as described without having to flash the combination files?
normal and Prince Comsy Odin both failed.
Thanks
edit: Took the dive .... worked great thanks, now on G950U1 and have wifi calling and VoLTE
This is great, minus one thing, it installed facebook on my phone, which I didn't have before and never wanted and it won't let me uninstall it..
I'm hoping you are still monitoring this old thread. I have a Verizon Galaxy S8 and followed your instructions exactly (except that I downloaded the files for SM-G950U1 (my current model is SM-G950U). When I start Odin, it gets stuck at "SetupConnection" and never goes any further. Thoughts?
pakkergirl said:
I'm hoping you are still monitoring this old thread. I have a Verizon Galaxy S8 and followed your instructions exactly (except that I downloaded the files for SM-G950U1 (my current model is SM-G950U). When I start Odin, it gets stuck at "SetupConnection" and never goes any further. Thoughts?
Click to expand...
Click to collapse
Did you by chance boot download mode?
Will this work if I have a v5 bootloader?
kukumaka said:
Will this work if I have a v5 bootloader?
Click to expand...
Click to collapse
Yea. I just switched to Verizon. You should be able to just pop your sim in and it automatically carrier switch. Most of these are multi carrier
But yea I don't know about the firmware program he's offering never used it I get mi e from sammobile.com or update.com
Hi, I flashed this rom in my verizon S8+ SM-g955u1, but after that the phone is having the no signal issue. Imei is still there, how to fix this?
fagnerkof said:
Hi, I flashed this rom in my verizon S8+ SM-g955u1, but after that the phone is having the no signal issue. Imei is still there, how to fix this?
Click to expand...
Click to collapse
Is it unlocked
TheMadScientist said:
Is it unlocked
Click to expand...
Click to collapse
Yes, it has unlocked as it recognizes my sim card and carrier. But no signal. I think the problem is the device is with "MIPI device fail" status
fagnerkof said:
Yes, it has unlocked as it recognizes my sim card and carrier. But no signal. I think the problem is the device is with "MIPI device fail" status
Click to expand...
Click to collapse
Never saw that one before. But theres a few fixes supposedly
http://forum.gsmhosting.com/vbb/f453/mipi-device-fail-final-solution-2429954/
You'll have to root and do a nv rebuild it looks like
Need access to hidden menus
TheMadScientist said:
Never saw that one before. But theres a few fixes supposedly
http://forum.gsmhosting.com/vbb/f453/mipi-device-fail-final-solution-2429954/
You'll have to root and do a nv rebuild it looks like
Need access to hidden menus
Click to expand...
Click to collapse
I tried nv rebuild via menu *#27663368378#. I'm not sure if i can root due I'm on bl7
fagnerkof said:
I tried nv rebuild via menu *#27663368378#. I'm not sure if i can root due I'm on bl7
Click to expand...
Click to collapse
Yea not yet. I'm also on 7. We need edl files first. I got the combination rom for the boot img but edl is still missing. I got a few guys looking for it. I typed in the error you gave me and saw a few sites with no box fixes. Normally if you can get to the menu I don't see root being needed. But I may ne wrong since I've never seen this error
This would be great if it worked. However I have my doubts. You would first need to have the phone be from Verizon or be on another carrier and *unlocked* first before changing any CSC using the US OPEN firmware which allows you to simply put a sim card in and switch carriers by swapping sims and letting Samsung reconfigure the phone. The BEST setup is a SPRINT phone.. unlocked.. then converting to U / U1 firmware. You then have every possibility when it comes to carriers sitting at your finger tips!
Good Luck
noidodroid said:
This would be great if it worked. However I have my doubts. You would first need to have the phone be from Verizon or be on another carrier and *unlocked* first before changing any CSC using the US OPEN firmware which allows you to simply put a sim card in and switch carriers by swapping sims and letting Samsung reconfigure the phone. The BEST setup is a SPRINT phone.. unlocked.. then converting to U / U1 firmware. You then have every possibility when it comes to carriers sitting at your finger tips!
Good Luck
Click to expand...
Click to collapse
Your post dont even make sense. The Verizon s8 at the time came sim unlocked. All you had to do was swap the csc. But worked unlocked out of the box. Why would a sprint device be the best setup. All the us s8s are identical. Sounds like you come from LG which is true on devices and versatility. Not Samsung.
I recently switched to Xfinity mobile from AT&T. I got the cheap Moto phone for basically free but would like to use my GS 8 factory unlocked.
When I put in the SIM Card my GS8 is unable to connect to the network.
I recently tried rooting my device and that failure resulted in a warranty claim. Now that I have it back I need assistance... Don't want to spend the money on a new phone as my GS8 works just fine.
Saw a recommendation to flash my device to Xfinity firmware but not sure about this approach given my recent root failure.
Anyone ever BYOD to Xfinity and had to work around the network issues?
I'm a complete noob, but you say your s8 is unlocked so have you tried to change the apn settings for Xfinity mobile
Typically, it's very hard to "brick" a device. As long as you are able to boot your device in upload mode, it's not technically bricked. Most flashing errors can be fixed by booting the phone into upload mode and flashing stock (the original baseband file of the device) firmware in Odin.
I personally think you should be fine using an unlocked phone on Xfinity Mobile (even though it's not technically supported). When you flash in Odin make sure the CSC file is from Xfinity Mobile. Try doing some research in the Carrier Switch thread first.
State.of.mind said:
Typically, it's very hard to "brick" a device. As long as you are able to boot your device in upload mode, it's not technically bricked. Most flashing errors can be fixed by booting the phone into upload mode and flashing stock (the original baseband file of the device) firmware in Odin.
I personally think you should be fine using an unlocked phone on Xfinity Mobile (even though it's not technically supported). When you flash in Odin make sure the CSC file is from Xfinity Mobile. Try doing some research in the Carrier Switch thread first.
Click to expand...
Click to collapse
You mean download mode. Upload only is bricked
zekeman66 said:
I recently switched to Xfinity mobile from AT&T. I got the cheap Moto phone for basically free but would like to use my GS 8 factory unlocked.
When I put in the SIM Card my GS8 is unable to connect to the network.
I recently tried rooting my device and that failure resulted in a warranty claim. Now that I have it back I need assistance... Don't want to spend the money on a new phone as my GS8 works just fine.
Saw a recommendation to flash my device to Xfinity firmware but not sure about this approach given my recent root failure.
Anyone ever BYOD to Xfinity and had to work around the network issues?
Click to expand...
Click to collapse
First off welcome to XDA Im pretty sure I saw you post on the XFIN forums..
Yea I have never seen that issue I have used several byod devices on XFIN all where verizon based though..Which does not matter on s8 as it is a multi carrier device
So first you need to see which firmware you are currently running
Download that exact same firmeware with cct as csc which is what determines carrier Heck if your on tonight I can upload a CCT csc and you should be able to flash one in ODIN if yours is the 950u1 which is unlocked s8 model We will be changing it to a regular 950u which is carrier....
I am Like the local Xfinity guru here as I use them I have mine rooted and everything even bricked several to previous said upload mode But I was playing with deep deep stuff.Nothng that odin can really harm
@HoosierDaddy
Can you upload the Carrier Switch files please?
sresam89 said:
@HoosierDaddy
Can you upload the Carrier Switch files please?
Click to expand...
Click to collapse
Goto sammobile or updato who ever you get your firmwares from and get the CCT branded firmware of your likeness of bootloader revision
I do not have any firmwares on hand any more I lost my old gmail account and my gdrive as well I am starting from scratch