So, I was fed up with the fact that I couldn't use 4G band 20 on my sim free purchased galaxy s8 in the UK as my signal is poor in my local area and without that, would leave me without any signal at home so I successfully managed to flash the Three software and then it was easy enough to enable it - still no VOLTE option of course!
However my GPS doesn't seem to be accurate, feeezes and when I went on holiday to the USA air wouldn't let me manually select my network, but my wife's phone that is on the standard firmware allowed manual network selection. I didn't have these issues when I was last in the USA In September
As I say, I mainly changed so I could somehow enable Band Wp 4G, however I've now managed to do that on my wife's phone without flashing new firmware, so I'd like to revert back to standard unbranded firmware.
When I changed to three software, I ran google backup, Samsung backup and used Samsung smart switch backup as well and it didn't seem to back everything up at all. I had to resign in two absolutely everything, redownload items, lost my reminders, lost my notes. Is there a way to do a complete full backup and restore so I can go to unbranded firmware?
Thank you
Any ideas please?
wezzel98765 said:
Is there a way to do a complete full backup and restore so I can go to unbranded firmware?
Click to expand...
Click to collapse
Not unless you're rooted. You can try helium but again no guarantee.
Related
Hello,
I'll start from the beginning so maybe someone can figure out exactly whats going on with my Galaxy S4.
So my carrier is Telus and I had just a rooted 4.2.2 and everything has been fine since day 1 of rooting. 2 nights ago I noticed the stock Google Edition ROM was out and I decided to give that a try. I flash the 4.3 Google Edition ROM which said Canada (Bell/Telus/Rogers) and I was using that for about 24 hours. Everything was great, however I noticed I lost my 4G/LTE connection. So without being connected to WiFi I had no data plan basically, everything was on, carrier was selected all the APN settings were correct so I was lost. Completely confused as to why this is happening I just decided to restore to stock, unroot and start from scratch. I used Oden to restore the stock ROM from Telus back to android 4.2.2
Now, once that came back, still the same problem and what I noticed was it installed all the Bell Mobility stock software and when I plug the phone into Kies it's listed as a Bell Mobility device. How is this possible? I used the Telus stock ROM to restore, once that I've used before without any issues at all.
Any help would be appreciated, if you have any questions let me know.
Thanks.
Kritik31 said:
Hello,
I'll start from the beginning so maybe someone can figure out exactly whats going on with my Galaxy S4.
So my carrier is Telus and I had just a rooted 4.2.2 and everything has been fine since day 1 of rooting. 2 nights ago I noticed the stock Google Edition ROM was out and I decided to give that a try. I flash the 4.3 Google Edition ROM which said Canada (Bell/Telus/Rogers) and I was using that for about 24 hours. Everything was great, however I noticed I lost my 4G/LTE connection. So without being connected to WiFi I had no data plan basically, everything was on, carrier was selected all the APN settings were correct so I was lost. Completely confused as to why this is happening I just decided to restore to stock, unroot and start from scratch. I used Oden to restore the stock ROM from Telus back to android 4.2.2
Now, once that came back, still the same problem and what I noticed was it installed all the Bell Mobility stock software and when I plug the phone into Kies it's listed as a Bell Mobility device. How is this possible? I used the Telus stock ROM to restore, once that I've used before without any issues at all.
Any help would be appreciated, if you have any questions let me know.
Thanks.
Click to expand...
Click to collapse
I'm wondering if the 4.3 rom managed to update your EFS or CSC data... I'm no expert in these areas (and I'm on AT&T), so I don't think I can be much of a help. But this might be something to look into. Also be sure you wiped data too (you didn't mention it).
Also, I'm wondering if you have the correct Odin file for your carrier (if there is such a thing as a difference?)? I know with older handsets, it was possible for AT&T to push out APN settings, etc. from the carrier's end, forcing updates to your handset. Not sure if that's still possible or not.
If you have a nandroid backup of your ESN partition, you might try to restore that. Don't try to restore someone else's backup, or you'll mess up your IMEI and such.
Aou said:
I'm wondering if the 4.3 rom managed to update your EFS or CSC data... I'm no expert in these areas (and I'm on AT&T), so I don't think I can be much of a help. But this might be something to look into. Also be sure you wiped data too (you didn't mention it).
Also, I'm wondering if you have the correct Odin file for your carrier (if there is such a thing as a difference?)? I know with older handsets, it was possible for AT&T to push out APN settings, etc. from the carrier's end, forcing updates to your handset. Not sure if that's still possible or not.
If you have a nandroid backup of your ESN partition, you might try to restore that. Don't try to restore someone else's backup, or you'll mess up your IMEI and such.
Click to expand...
Click to collapse
Yeah sorry I forgot to mention some stuff. I have wiped data and factory restored before flashing the stock ROM in Odin as well as wiped everything again as soon as its complete. Right when it boots up the APN info is all wrong. I have data now if I set it up myself but its just sitting on H+ rather than LTE/4G. Also it seems to install the Bell bloatware rather than the Telus bloatware, so something within the phone still thinks its a Bell phone. I'm stumped, so is the Telus guy who was trying to help me with it today. I know I'm using the right .tar stock file from Telus because I've used it before. Man this really stinks!
EDIT: I'm not sure if this is valuable info to add but I just noticed when doing a factory reset it says the CSC that's applied and its labelled as BMC which is Bell Mobility. This is a Telus phone so I'm assuming my problem is somewhere right from there.
ALRIGHT!
I fixed it... I found a tutorial on how to change the CSC with the key command
"*#272*Device IMEI#"
Then it showed a list of carriers and I chose the right one, rebooted and it restored everything and presto. 4G/LTE is back on.
Kritik31 said:
ALRIGHT!
I fixed it... I found a tutorial on how to change the CSC with the key command
"*#272*Device IMEI#"
Then it showed a list of carriers and I chose the right one, rebooted and it restored everything and presto. 4G/LTE is back on.
Click to expand...
Click to collapse
Super-awesome! Glad to hear you got it figured out!
Hey guys, i was wondering if i can flash firmware from other carrier without bricking?
I bought my phone last year locked to carrier, and I unlocked it using doctorSIM service. Phone itself works fine, and as I'm not living in country that i bought my phone from originally, phone gives a message "No SIM card installed" sometimes once a week, sometimes several times a day and i need to remove SIM card or to restart phone to make SIM card work again.
Please note:
- SIM Card from my original carrier (from one that I bought my phone from) works PERFECTLY fine
- My other SIM card (that my phone constantly rejects) works in other phones just fine
- I have tried to reset the phone, and carrier bloatware constantly keeps installing
- EDIT: Wi-Fi and 4G are working PERFECTLY fine
What to do? Any ideas?
Thanks in advance and sorry for gramar mistakes
Bump, flashed other carrier firmware, still same problem.
R u rooted? Have you considered flashing a CSC packet for your location?
I have a 930S, and works fine with the Korean ROM/Chinese language here in the US, on ATT service.
I have flashed the ATT, XAA and TMB CSC sets, and though the phone worked, and loaded the correct USA carrier info, I lost the phone code ability, which I could not solve.
In the end I went back to the original Korean ROM and it's CSC packet. Interestingly, though it works perfectly here in the U.S., and I can use/input phone codes, it still shows Chinese cities for my 'Region", none of which I have selected. When I do a search for local towers, it locates and correctly identifies AT&T, T-Mobile, etc. I select ATT. The Chinese cities remain in the region selection, none selected.
Wait and see if someone knows if CSC (Exynos or US based CPU) are interchangeable. I used CSC packets from a universal ROM setup (non-USA).
JeffDC said:
R u rooted? Have you considered flashing a CSC packet for your location?
I have a 930S, and works fine with the Korean ROM/Chinese language here in the US, on ATT service.
I have flashed the ATT, XAA and TMB CSC sets, and though the phone worked, and loaded the correct USA carrier info, I lost the phone code ability, which I could not solve.
In the end I went back to the original Korean ROM and it's CSC packet. Interestingly, though it works perfectly here in the U.S., and I can use/input phone codes, it still shows Chinese cities for my 'Region", none of which I have selected. When I do a search for local towers, it locates and correctly identifies AT&T, T-Mobile, etc. I select ATT. The Chinese cities remain in the region selection, none selected.
Wait and see if someone knows if CSC (Exynos or US based CPU) are interchangeable. I used CSC packets from a universal ROM setup (non-USA).
Click to expand...
Click to collapse
I'm not rooted, as I use Samsung Pay and have more than one year of warranty left. I will try flashing CSC of the current country I'm in (Austria). Thanks for taking time and writing all this, this problem is unbearable
Hello!
My s7 edge is in trouble, it freezes sometimes, and sometimes it gets a full screen of pixel color flaws, with that problem my root smartphone works two weeks. Sometimes this error occurs in the ROM installation process, I insist on the installation until I can. I tried to install superman rom and due to this problem, the smartphone in the screen of death "exception of bootloader" (But it's already been resolved)...
When searching the internet, I saw that this could have a problem in flash memory.
After all history, I ask;
I could use a twrp file system repair function to try to solve this problem? And how to proceed?
(sorry for the use of google translate)
sekrilhus said:
Hello!
My s7 edge is in trouble, it freezes sometimes, and sometimes it gets a full screen of pixel color flaws, with that problem my root smartphone works two weeks. Sometimes this error occurs in the ROM installation process, I insist on the installation until I can. I tried to install superman rom and due to this problem, the smartphone in the screen of death "exception of bootloader" (But it's already been resolved)...
When searching the internet, I saw that this could have a problem in flash memory.
After all history, I ask;
I could use a twrp file system repair function to try to solve this problem? And how to proceed?
(sorry for the use of google translate)
Click to expand...
Click to collapse
I am, by far, not educated up on TWRP, so I'm not sure what you mean by "repair", other than making sure your data partition is formatted so it does not cause the issues you are talking about.
Here is an interesting read:
https://forum.xda-developers.com/go...o-repairing-corrupted-data-partition-t2577447
Hey guys, update on the problem, i replaced sim card and it works just fine, i will post updates as time goes on
Thanks for the help!
I have a stock Verizon G950U (on Selectel prepaid but that shouldn't be an issue) and used the PC software to install the latest update NRD90M.G950USQS2BQL1
Immediately following the reboot I have not have service since. My sim works in other phones, took S8 to Selectel store and they confirmed working Sim and said it was a device issue. I have factory reset and even restored the firmware with the software again. I don't get a ton of service in my rural area but was able to activate an old S3 that I had lying around. The Selectel store is also in a larger city with plenty of service.
The radio is on as it shows bars, scans and shows networks, but absolutely will not register manually or automatically.
My limited knowledge and searching says that I cannot directly downgrade the firmware to an older working version. I've rooted older devices but last I played with it KNOX and the risks of bricking are getting ridiculous unless someone can specifically state otherwise for this device and link me to videos and direct download links.
Thanks in advance, I'm pulling my hair out. Short of rooting or waiting for the next update to hopefully fix it I don't know what to do.
schmitey said:
I have a stock Verizon G950U (on Selectel prepaid but that shouldn't be an issue) and used the PC software to install the latest update NRD90M.G950USQS2BQL1
Immediately following the reboot I have not have service since. My sim works in other phones, took S8 to Selectel store and they confirmed working Sim and said it was a device issue. I have factory reset and even restored the firmware with the software again. I don't get a ton of service in my rural area but was able to activate an old S3 that I had lying around. The Selectel store is also in a larger city with plenty of service.
The radio is on as it shows bars, scans and shows networks, but absolutely will not register manually or automatically.
My limited knowledge and searching says that I cannot directly downgrade the firmware to an older working version. I've rooted older devices but last I played with it KNOX and the risks of bricking are getting ridiculous unless someone can specifically state otherwise for this device and link me to videos and direct download links.
Thanks in advance, I'm pulling my hair out. Short of rooting or waiting for the next update to hopefully fix it I don't know what to do.
Click to expand...
Click to collapse
Out of chance have you checked the baseband and iemi in info to make sure they are ok?
TheMadScientist said:
Out of chance have you checked the baseband and iemi in info to make sure they are ok?
Click to expand...
Click to collapse
it shows imei and baseband of G950USQS2BQL1
schmitey said:
it shows imei and baseband of G950USQS2BQL1
Click to expand...
Click to collapse
Ok so its not a corrupt EFS issue. have you gone into netwrok and switch to global or anything....
Does it show your phone number in the info as well That will tell if its reading sim or not
It does show my number from sim after booting up without a sim and then inserting. I don't see any global settings. Again from the update no settings changed, since then I've wiped to factory settings numerous times.
I can't find a fricken stock rom file anywhere for crying out loud, just loads of register spam sites.
I think I'm downloading an Oreo 8.0 rom but can I downgrade later and again where's the dam file?
schmitey said:
It does show my number from sim after booting up without a sim and then inserting. I don't see any global settings. Again from the update no settings changed, since then I've wiped to factory settings numerous times.
I can't find a fricken stock rom file anywhere for crying out loud, just loads of register spam sites.
I think I'm downloading an Oreo 8.0 rom but can I downgrade later and again where's the dam file?
Click to expand...
Click to collapse
https://www.sammobile.com/firmwares/
schmitey said:
I have a stock Verizon G950U (on Selectel prepaid but that shouldn't be an issue) and used the PC software to install the latest update NRD90M.G950USQS2BQL1
Immediately following the reboot I have not have service since. My sim works in other phones, took S8 to Selectel store and they confirmed working Sim and said it was a device issue. I have factory reset and even restored the firmware with the software again. I don't get a ton of service in my rural area but was able to activate an old S3 that I had lying around. The Selectel store is also in a larger city with plenty of service.
The radio is on as it shows bars, scans and shows networks, but absolutely will not register manually or automatically.
My limited knowledge and searching says that I cannot directly downgrade the firmware to an older working version. I've rooted older devices but last I played with it KNOX and the risks of bricking are getting ridiculous unless someone can specifically state otherwise for this device and link me to videos and direct download links.
Thanks in advance, I'm pulling my hair out. Short of rooting or waiting for the next update to hopefully fix it I don't know what to do.
Click to expand...
Click to collapse
Don't worry about Knox, it's not possible to trip it on a 950u
Tried flashing to BQK5 with moderate success. Passed with Odin (which csc file should I use?) but on reboot it stalled at 32% when installing. Rebooted and after flash screen updated android and showed BQK5 but all my data and apps were there so i likely screwed something up. Installed sim card and momentarily showed 4g and appeared to register but at reboot did the same crap with no service.
Called Samsung prior to flashing and no surprise that was a colossal waste of time. I'm not paying them $200+ to fix an unrelated issue with the back glass that cracked with a case on and phone has never been dropped. They did say that they're partnered with best buy but that's two hours of driving for me...I'd fix the back glass myself and try to get them to give me a new phone if it came to it.
Verizon software shows an update now so I'll let it download (again...takes all night for some stupid reason) and vainly let it flash to current version.
I think I found the Oreo 'final' update so might try that...looks like it installs off an sd card if I can find an old one.
hello, for my curiosity use the method with vpn to update my cell phone to Android 9, apparently everything was fine until I realized that I did not recognize the 3g, something that made me very uncomfortable so I down to 8.0, my surprise was when now instead of agrariar 4g already not even took signal, with luck it recognized the SIM card but it did not allow to use Internet Mobil nor to make calls, also at the moment of updating it to 8.1 this simply froze in the logo of Android one, since I did not have a backup, I tried to put a ROM that I had previously used and that if I grabbed 4G but now nothing, for me it is more important to have a signal again, please help me
Surfer032 said:
hello, for my curiosity use the method with vpn to update my cell phone to Android 9, apparently everything was fine until I realized that I did not recognize the 3g, something that made me very uncomfortable so I down to 8.0, my surprise was when now instead of agrariar 4g already not even took signal, with luck it recognized the SIM card but it did not allow to use Internet Mobil nor to make calls, also at the moment of updating it to 8.1 this simply froze in the logo of Android one, since I did not have a backup, I tried to put a ROM that I had previously used and that if I grabbed 4G but now nothing, for me it is more important to have a signal again, please help me
Click to expand...
Click to collapse
What Rom did you use?
The last one from Miui.com?
I think that you must reflash Android Pie
jack_21 said:
What Rom did you use?
The last one from Miui.com?
I think that you must reflash Android Pie
Click to expand...
Click to collapse
Just do this
Go to settings. Applications then clear data for Google play services,Google frame work, location then remove the sim card and use VPN switch to Netherlands or us and use wifi till the update is done you won't get any problems
Looks like corrupted IMEI to me. Just search, I saw a thread with guide to recover IMEI when downgrade from Pie to Oreo.
Hi,
I have a Samsung S8 Active G892U which I bought used as an unlocked phone. It's clear it was originally a Sprint phone, but I have been using it with no problems on T-Mobile USA. It was running firmware G892USQS3BRI1 until today
Today I was prompted to install the latest software update ( G892USQS3BSA1 - this was clearly a Sprint update; it appears my phone is still getting Sprint updates, which makes sense, as it has Sprint firmware).
There was a warning on the Software update screen that the update would stop Volte working, and I would therefore no longer be able to access data while in a phone call. I (foolishly!!) assumed this would not affect me as I was on T-Mobile. I regularly use data while on the phone, so I know there was no issue with this previously.
The upgrade has completed, and I can no use data while making a call (I am in a LTE area at the moment). There is no sign of any option to enable or disable Volte anywhere in the settings menus
I did try going into Settings->Connections->Mobile Networks and changing Network Mode from "Automatic" to "LTE/CMDA." (as various forums indicated that doing that would provide a menu where I could re-enable volte)
This made the situation worse - I could no longer make calls. I have changed back to 'Automatic' , and can make calls again, but still loose data connectivity when making a call.
Is there any way I can restore my previous ability to use data while calling?
I am wondering:
a) If there is a way to renable Volte without reflashing the phone (that would be preferred)
b) If I do flash the phone, what would be the best firmware to go to - Sprint (presumably the previous version), T-Mobile or something custom (I'm clearly concerned about bricking the phone here)
c) It's several years since I've found myself re-flashing a phone - I see lots of references to "Odin" as the tool to use - is that correct, and could someone point me to the best guide on using it?
Thanks in advance..
You can flash the Sprint latest firmware over the current firmware and I think that should do the trick because I did it and so far so good but proceed with caution I have no experience in dirty flashing but as long as you just stick to the AP file and don't load the bootloader etc I think you should be safe from bricking because as far as I know when the boot loader is gone you can't repair anything