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Hi guys ,
I have recently brought a Samsung s7 edge on EE in the UK, I did but the phone second hand but appears to be working correctly to start .
The phone will not find any software updates or play pokemon go for my son and Samsung knox is also tripped out , says the software has been modified in a unauthorised way, I went to samsung and they said it has been rooted and void of warranty so all I can do is Give them £250 for a new motherboard for the phone.
I followed some instructions by downloading a terminal client and it's not showing me as having super user status on the device ,
.I've had I phones since day one and was loving the freedom of android but I really do find myself out of my league as I'm pretty illiterate when it comes to this kind of stuff . I'm looking to either flash the phone back to its factory state or have the phone rooted properly to allow me to update etc
I'm very apprehensive about attempting this myself and was hoping someone could point me in the direction of a idiots guide on how to or specialist on here who would do it for payment if I were to meet them somewhere with their laptop
I have tried Google searching but nothing much seems to make sense , thanks in advance
You want to flash a stock firmware. Get everything working OK first. Try "Updato" for fast firmware downloads. Try a "BTU" firmware. Download Samsung phone drivers and Odin. YouTube Odin very simple to use. Should restore your phone. Then look into rooting.
Sent from my SM-G935F using XDA-Developers mobile app
The phone is modified in a way that it was rooted before, but prior to selling, the vendor unrooted it. Pokemon Go will not work on a rooted device.
First thing is to find the exact build of the phone (under software info in the about section of settings), then look for the corresponding firmware. Trustworthy sources is this forum and sammobile (I usually get my firmware files here). Samsung PC drivers can be found on the internet. Officially they are installed on the PC when you install Samsung SmartSwitch (Samsung's PC Backup and Updating software). Then download Odin. You will use that to flash the stock firmware back onto your phone.
Sent from my SM-G935F using Tapatalk
Info
Elliottsdaddy said:
Hi guys ,
I have recently brought a Samsung s7 edge on EE in the UK, I did but the phone second hand but appears to be working correctly to start .
The phone will not find any software updates or play pokemon go for my son and Samsung knox is also tripped out , says the software has been modified in a unauthorised way, I went to samsung and they said it has been rooted and void of warranty so all I can do is Give them £250 for a new motherboard for the phone.
I followed some instructions by downloading a terminal client and it's not showing me as having super user status on the device ,
.I've had I phones since day one and was loving the freedom of android but I really do find myself out of my league as I'm pretty illiterate when it comes to this kind of stuff . I'm looking to either flash the phone back to its factory state or have the phone rooted properly to allow me to update etc
I'm very apprehensive about attempting this myself and was hoping someone could point me in the direction of a idiots guide on how to or specialist on here who would do it for payment if I were to meet them somewhere with their laptop
I have tried Google searching but nothing much seems to make sense , thanks in advance
Click to expand...
Click to collapse
you need to unroot and Relock the Bootloader
OTA updates doesn't work on some phones with unlock bootloader
follow this link and read carefully
http://www.galaxynote5update.com/un...sung-galaxy-note5-to-original-stock-firmware/
it explains everything you need to know
:good:
Geeks Empire said:
you need to unroot and Relock the Bootloader
OTA updates doesn't work on some phones with unlock bootloader
Click to expand...
Click to collapse
The UK S7 Edge, which is the Exynos variant (G935F) doesn't have bootloader restrictions in that form, thus there is nothing to "relock".
Geeks Empire said:
http://www.galaxynote5update.com/un...sung-galaxy-note5-to-original-stock-firmware/
it explains everything you need to know
:good:
Click to expand...
Click to collapse
Why do you link to an article on a questionable site, named exactly what I'd imagine a phishing, scammer website would call it to someone completely new to Android!? Seriously, stop linking to these weird a** pages. These pages only exist to generate traffic. They're not even ran by real people. The same exact text on that website is on five other websites, copied and pasted. This is not productive. New users need assistance that's going to help them in the long term. They have to understand the process.
@Elliottsdaddy You want your device restored to its original state. Unrooted. The process of unrooting by flashing a stock firmware is fairly complicated for a newbie and requires you to extensively read and comprehend the tutorial/process. Seriously. There is a lot that can go wrong. I'm gonna ask you to follow the link below. It's a tutorial, posted on XDA by one of our senior members @henklbr. If you have questions, first use the search function and see if your question has already been answered by someone. If not, feel free to ask and give enough detail so people can help you appropriately.
Tutorial:
http://forum.xda-developers.com/s7-edge/how-to/official-stock-firmware-update-odin-t3335065
Firmware Download:
http://updato.com/firmware-archive-select-model
nitrous² said:
The UK S7 Edge, which is the Exynos variant (G935F) doesn't have bootloader restrictions in that form, thus there is nothing to "relock".
Why do you link to an article on a questionable site, named exactly what I'd imagine a phishing, scammer website would call it to someone completely new to Android!? Seriously, stop linking to these weird a** pages. These pages only exist to generate traffic. They're not even ran by real people. The same exact text on that website is on five other websites, copied and pasted. This is not productive. New users need assistance that's going to help them in the long term. They have to understand the process.
Click to expand...
Click to collapse
i don't wanna defend it but i checked it! (Sorry not completely) and didn't find anything harmful for devices!
anyway thanks for noticing :good:
The exact model is Samsung Galaxy S7 edge SM-G9350 64 GB GOLD PLATINUM
First I want to get this off my chest. I registered this week (I used XDA before like 7 or 8 years ago in high school when I use to flash custom ROMS on windows mobile phones-good times hehe)because I am frustrated since I bought an unlocked Samsung Galaxy S7 edge from a stranger using craigslist on Sunday night. The ad said it was T-mobile Unlocked and in brand new condition with the box and original accessories and it had some pictures.So why not buy it cheap for since I'm using a T-mobile LG-K7 with a cracked screen,right?WRONG!! The phone is working fine except I am only getting EDGE data!!! I found out that it is a chinese variant and it works fine with my T-mobile sim card here in the U.S.A except it can't connect to 4G and that is probably why the shady guy sold the phone cheap to let it become someone else problem I also saw 1 or 2 of these models in the box as well and he said a friend gave it to him and he is just selling it(B.S.) I forgot craigslist had scammer like 40% of the transactions lol, I use to meet these types of people in middle and high school when I bought and sold my used or old T-mobile phones though I never scammed or conned any one.I remember some people would act shady or too nice for no reason,probably cause they stole the phone and were making 100% profit off me.This same guy is one of them.
ANYWAYS THANK YOU FOR READING MY RANT---- NOW ON TO THE POINT OF FIXING THE DATA ISSUE
I am getting unlimited 4G on my k7 and everyone else on our plan is using unlimited 4g just fine.Samsung rep at best buy said its legit and its an international chinese variant and to look around on here to fix the issue. He told me something about the band and t-mobile towers to pick up the frequency. He said I got a really good deal if I can 4g on there. If not than re-sell it and make it someone elses problem. I looked all around google the past few days an either no one has this problem or if they do than the solution doesn't work on my phone.
Here is what I tried so far:
A) T-mobile reset the network connection via tech support
B) I factory reset the phone numerous times
C)I got the right APN settings set on the phone to be connected to nearest towers, a store rep did it for me to make sure.
D) I replaced and used another activated T-mobile sim card
E) I download some apps I saw on here to check LTE signal etc and its running very slow edge
*********I am on the sim status screen and right now as I'm typing this the signal strength is
-61 dBm 26 asu,cellular network type is EDGE,NETWORK is T-mobile, Service state is In service,Roaming is not roaming,cellular network state is disconnected*******
------I hope someone can pick up information off of that and maybe I could change some settings
E) I dialed *#*#4636#*#* and got to a screen to allow me to check phone information,battery information,usage statistics,wi-fi information-under phone information there are options to set preferred network types to: WCGMA,GSM, GSM auto(PRL), CDMA auto(PRL),CDMA only,EvDo only,GSM/CDMA auto(PRL),LTE/CDMA auto(PRL),LTE/GSM(PRL),CDMA auto(PRL),LTE only,Unknown. It will only stay on up to GSM auto(PRL)
....also when I press menu on this screen there is an option to enable data connection and when I click it,it won't stay,it just keeps saying enable data connection
F)I googled what bands this model and it is able to use and it has the capability to be used on T-mobile bands
What else can I do get the data working to 4G right now? The phone is running Android 6.0.1 and won't update to Nouget over the air. I want to root the phone and see if I can install a custom Nouget rom( since the samsung guy said the phone will brick if I try to install the T-mobile Nouget rom or I can't even do it since its an international variant-by the way I am able to have google services on here like play store,etc. so I don't know if that makes a difference to what variant and rom it is because I heard one or the other of hong kong or open china variants for this phone is better and can't use google play)and maybe I am able to connect to 4G data.
Like the title of this post says, I promise I will back up my donation I really don't want to sell the phone unless I have to because I will not get a better deal anywhere ever again for the latest high end phone from a manufacturer
Quick search gives this https://forum.xda-developers.com/s7...g9350-nougat-final-hkrom-alpha-02-18-t3558844
Sent from my SM-G935V using Tapatalk
you have to flash the correct CSC this will fix your 4G if you buy an device from a other country than is it possible that you get this problem but when you flash the correct CSC you will get 4G i helped so much people with this problem with a S7 device, i think this your solution
if this fix works for you just keep your money we are developers not for paying
Maybe you should post this in the T-Mobile section.
In my idea this should have 4G data on T-Mobile US out of the box as the required LTE bands are supported by the G9350. Did you check the APN settings? (VoLTE and WiFi-Calling may or will not work without t-mo-rom but that's another topic)
Also you should be fine to flash a T-Mobile US rom as both have Snapdragon SoC. You don't need root to flash an official rom.
Out of curiosity: what about 3G?
rientkill1 said:
you have to flash the correct CSC this will fix your 4G if you buy an device from a other country than is it possible that you get this problem but when you flash the correct CSC you will get 4G i helped so much people with this problem with a S7 device, i think this your solution
if this fix works for you just keep your money we are developers not for paying
Click to expand...
Click to collapse
Thank you so much!!! People have actually asked through pm to donate to bitcoin first before helping me and here you are helping me first by the way.
I am going to find the correct CSC, what does that stand for? Can I flash a T-mobile 7.0 Nougat rom on my Galaxy SM-9350 first that the person before you replied about(its the link)?? I want to do both to have T-mobile settings and to use the 4G although the 4G is a thousand times more important. If I can do this than I am a happy man!
Why is there a boot loader and modem link attached to every post containing a ROM download? Does that need to be downloaded first,and what are the next steps,if so? I know these are questions I need to search about they are all confusing and mumbled and jumbled up. Even though I registered this week for help I was a member here like 8-9 years ago in high school when I was flashing custom ROMS on Windows mobile phones(good times hehe) but it got addictive,took a lot of my time from studying, and I totally forgot how do things.
andiling said:
Maybe you should post this in the T-Mobile section.
In my idea this should have 4G data on T-Mobile US out of the box as the required LTE bands are supported by the G9350. Did you check the APN settings? (VoLTE and WiFi-Calling may or will not work without t-mo-rom but that's another topic)
Also you should be fine to flash a T-Mobile US rom as both have Snapdragon SoC. You don't need root to flash an official rom.
Out of curiosity: what about 3G?
Click to expand...
Click to collapse
Hey I made a new thread today in Q&A for GS7. The APN settings were put in by a T-mobile store associate and it still didn't work. I don't care about VoLTE/Wifi-Calling although I noticed some people on here are worred about that-its just something I never use.
Are you sure I don't need root to flash an official ROM?The Samsung Galaxy guy at Best Buy said it would brick if I used an official ROM because the phone is an international variant. If I can use an official ROM,I can't get Nougut OTA via T-mobile anyway as my phone keeps saying it is updated even though it is 6.0.1. How do I get the offical ROM manually on the computer? Samsung Smart Switch isn't even recognizing my device when it is connected and Smart Switch on my phone looks like it is only suppose to be used to receive files from another phone? I have the link for a T-mobile 7.0 ROM from a post on here that he used on the same exact model I don't know if I am suppose to root the device first or not yet since it looks custom made.
Thank You for helping me out it means a lot you guys are the best! I can already see myself on here a lot in the future doing stuff different android phones like I 8 or 9 years ago in high school on windows mobile phones.
andiling said:
Maybe you should post this in the T-Mobile section.
In my idea this should have 4G data on T-Mobile US out of the box as the required LTE bands are supported by the G9350. Did you check the APN settings? (VoLTE and WiFi-Calling may or will not work without t-mo-rom but that's another topic)
Also you should be fine to flash a T-Mobile US rom as both have Snapdragon SoC. You don't need root to flash an official rom.
Out of curiosity: what about 3G?
Click to expand...
Click to collapse
The only data I am getting is EDGE
So, I guess something is wrong.
You can try flashing the designated firmware for this device first and see if this helps. To get the right one (who knows what all was tampered with) use best the Phone Info tool.
I've had this exact issue before, with a Nexus 5 that I bought from Telus, I am with Telus, it ended up being I had to go buy and register a new SIM card, then it was fine, might not be a solution for you but Worth a try,
Actually get a SIM card from your provider, have them register it in the store
Sent from my SM-G935W8 using XDA-Developers Legacy app
Thanks I did that yesterday already and it still didn't work
I am a member because the owner hates the Iphone and I respect that
What would be the correct CSC file for this device? I tried to flash CSC from a SM-G935t firmware and it didn't work even though she said it didn't matter lol(senior member too)
I am a member because the owner hates the Iphone and I respect that
I'm going to try to find an official U.S. T-mobile ROM and flash with odin...but does it have to be specifically for SM-G9350? I don't think I can find one for that......
I am a member because the owner hates the Iphone and I respect that
1) Download this https://dl.twrp.me/hero2lte/twrp-3.1.0-0-hero2lte.img.tar.html and WAIT.
2) Download superman ROM: https://www.androidfilehost.com/?fid=817550096634750162
I choosed this rom cause it got nougat bootloader and kernel. Also download CSC chooser zip: https://www.androidfilehost.com/?fid=745425885120710484
3) Install twrp via ODIN and uncheck auto reset in odin. Then press power + home + volup to go to recovery. Put the superman rom and CSC chooser zip files on Sd card and put back in phone.
4) Install Superman rom,in aroma pick superstock kernel 'samsung pay and knox work' and install/update everything especially the bootloader. In mods stick to stock as possible.
5) Install the CSC zip file and choose t-mobile USA.
6) reboot and pray everything works LOL
I'm not responsible for any damage that might occur but if ir worked donations are welcome to help a medical student here
modaifallah said:
1) Download this https://dl.twrp.me/hero2lte/twrp-3.1.0-0-hero2lte.img.tar.html and WAIT.
2) Download superman ROM: https://www.androidfilehost.com/?fid=817550096634750162
I choosed this rom cause it got nougat bootloader and kernel. Also download CSC chooser zip: https://www.androidfilehost.com/?fid=745425885120710484
3) Install twrp via ODIN and uncheck auto reset in odin. Then press power + home + volup to go to recovery. Put the superman rom and CSC chooser zip files on Sd card and put back in phone.
4) Install Superman rom,in aroma pick superstock kernel 'samsung pay and knox work' and install/update everything especially the bootloader. In mods stick to stock as possible.
5) Install the CSC zip file and choose t-mobile USA.
6) reboot and pray everything works LOL
I'm not responsible for any damage that might occur but if ir worked donations are welcome to help a medical student here
Click to expand...
Click to collapse
Nice, I like what you have! My model is different so I don't know if the ROM will work though I'm almost finished downloading it at the moment. Instructions 3 and 4 is confusing. Don't I need to put superman ROM and CSC file on sd card while the phone is ON?And am I suppose to transfer it on there via usb cable or can I also do it via google drive than open in up phone gmail and put it on sd card? Also do I need to extract the CSC file first to my computer desktop? That file takes forever to extract! Is instruction 4 suppose to be while in recovery mode? Also is it normal for my phone to show "no command" while in recovery mode?
Thank you ?
The rom will work because your phone is exynos based. It got a different model number because it's for Chinese markets. Put the rom on the SD card using whatever method, just do it before flashing the recovery, because your phone may not boot after the recovery to the stock firmware because Samsung has put some crap to prevent using custom firmware. I forgot to say that also before doing anything go to device info - > software - > and press build number several times to enable developer options then back to settings and go to developer options and enable OEM unlocking.
Yes, commands 4 are made in recovery. Install - > pick the zip file and install.
All zip files aren't extracted! The recovery uses the zip file as it is.
Good luck
okaythan24 said:
I'm going to try to find an official U.S. T-mobile ROM and flash with odin...but does it have to be specifically for SM-G9350? I don't think I can find one for that......
I am a member because the owner hates the Iphone and I respect that
Click to expand...
Click to collapse
Were you able to flash the U.S. T-mobile ROM onto SM-9350?
The official firmware can be found on https://www.sammobile.com/firmwares/database/SM-G935T/
I found it yesterday but their free server is under maintenance so he will have to pay to just download a firmware file.
I don't know why don't samsung provide them for free on their site!
Actually i am from india and i bought an samsung verizon note 3.. It was good before also i was able to use airtel 4g also.. But one of my friend installed stock rom and the mobile does not showing 4g at all.. I tried to root the phone but faiked to root... Please developer help me to install a custom rom and help me to use the phone with 4g
dipankar.c2bs said:
Actually i am from india and i bought an samsung verizon note 3.. It was good before also i was able to use airtel 4g also.. But one of my friend installed stock rom and the mobile does not showing 4g at all.. I tried to root the phone but faiked to root... Please developer help me to install a custom rom and help me to use the phone with 4g
Click to expand...
Click to collapse
The problem is the APN and you can not modify it. Contact your carrier and see if they can assist.
Sent from my SM-N900V using Tapatalk
ehrn i purchased the phone it was perfect. connecting internet was showing 4g.. but when i installed this original Verizon rom it became difficult.. now i am unable to root and install custom recovery... please guide me to root and install custom recovery TWRP and i want to install custim rom.. please help
@dipankar.c2bs
You might look into getting your CSC "sales_code" changed. I'm not sure if that is entirely the problem, but it is likely related. Even the USA Verizon ROMs come preloaded with databases that are used to provide custom parameters for a variety of carriers and locations world-wide. (See the file /system/csc/imsprofile.xml for example) I suspect the way this information is actually used is through the "sales_code" CSC value, but I'm not 100% sure of that.
I'm guessing you want "INS" or "INU" instead of VZW
What you currently have:
Code:
getprop | grep -i csc
If your handset is supported by Airtel, one of their technicians will probably know how to do the CSC change, possibly without even rooting the phone.
If it not supported, they probably will be under orders of their employer not to help you at all. But, is is easier for them to give you advice face-to-face, rather than over the telephone (subject to monitoring), if that is possible.
A question to ask - a form of social engineering - is this: "do you know of someone in the area that can help me for a small fee?"
[EDIT]
There is one other possibility for a non-rooted phone. I really don't know if this would work (I am speculating here), but the basic idea is to apply a CSC for a closely related device Model (a SM-N90???? Qualcomm model, hopefully for CDMA/LTE) that is for your country and carrier on top of your existing ROM using Odin. Get the CSC file from Sammobile, and:
- wipe the entire phone using the stock recovery. (You can remove the external SD card first if you like)
- boot the phone, shut down, boot into stock recovery.
- wipe the entire phone again in the stock recovery
- boot into Odin and flash the CSC in the CSC slot.
- boot the phone; do a minimal configuration and see if you have the service you want.
Note that @donc113 s advice given above is the right place to start: ask your service (Airtel) to help you before you try anything yourself.
good luck.
when i purchase it was good... there was 4g indicator also.. no verizon boot screen.. but now it dont works..
dipankar.c2bs said:
when i purchase it was good... there was 4g indicator also.. no verizon boot screen.. but now it dont works..
Click to expand...
Click to collapse
One of your friends who installed the stock ROM apparently didn't understand the consequences of what he did. Stock ROMs set the APN for Verizon. Did this friend happen to make a backup before he did the ROM switch?
Sent from my SM-N900V using Tapatalk
no he have not back up the previous rom
Knox?
hi all
i was advised by a friend to post my issue on this forum as someone here will always have the answer after searching the net without any luck.
i have a uk model s8 on the o2 network which was originally locked to o2.
so i took it the local market to get it unlocked which the market trader did and it accepted another uk sim
but wont connect to any network now. states emergency calls only, even with my original o2 sim.
i cant even search for any networks. when you try to search for networks by choosing the phone option, nothing happens, just states not available at this time. same thing when you try to choose manual or automatic search.
it accepts any sim now but wont connect to any network.
i thought it may have been barred even though i bought it 2nd hand and had it over 8 months so i checked imei on the net and it comes up clean. so not barred.
went back to market and the street trader said he will flash with firmware to fix. he said it was running latest firmware, android 8.0 dec 2018 G950FXXS4CRLB [december 2018, revB]
but will flash G950FXXU4CRL3 [december 2018, rev3]
but that did nothing. he said he wasnt sure why the phone is not getting a signal and confirmed it was definitely not barred.
he couldnt also understand why you cannot search network, why this option cannot be selected.
so this is where i am.
any help or guidance would be appreciated
regards,
Margaret acey
can anyone help?
ace.1 said:
can anyone help?
Click to expand...
Click to collapse
Did you check IMEI online or wih the original provider sometimes online services don't show blocked imeis I have a US model rooted and sometimes the radio crashes and and have similar issues. I have to reinstall the CP and csc from the firmware files to get it back up. Using the latest Odin and firmware. I assume your on the latest firmware
thankyou for your reply,
i have not checked with network but i have tried multiple websites who offer imei checking services and they all show clean imei.
in respect of firmware,
it was running the latest firmware which was android 8.0 dec 2018 G950FXXS4CRLB [december 2018, revB] which didnt work
then the market trader flashed an earlier version, stil android 8.0 but two weeks earlier version, ending with CRL3 and that has not worked either. so at the moment its on that version.
both these were released by samsung in december 2018 but neither work,
so i dont know what to do.
Margaret
so im s
ace.1 said:
thankyou for your reply,
i have not checked with network but i have tried multiple websites who offer imei checking services and they all show clean imei.
in respect of firmware,
it was running the latest firmware which was android 8.0 dec 2018 G950FXXS4CRLB [december 2018, revB] which didnt work
then the market trader flashed an earlier version, stil android 8.0 but two weeks earlier version, ending with CRL3 and that has not worked either. so at the moment its on that version.
both these were released by samsung in december 2018 but neither work,
so i dont know what to do.
Margaret
so im s
Click to expand...
Click to collapse
I would take it back to the individual who unlocked it. It worked before and not after.
yes i did that but he said he did the unlocking and that has worked so is not taking responsibility for the signal. so i have to fix myself.
can anybody offer any help on what to do please.
Does it matter which mode you select? e.g. are you able to choose 2G/3G/4G autoconnect?
My S8 suddenly lost connection to just the Vodafone 3G network in Australia but is able to connect to other carriers on the 3G network fine.
Mautje said:
Does it matter which mode you select? e.g. are you able to choose 2G/3G/4G autoconnect?
My S8 suddenly lost connection to just the Vodafone 3G network in Australia but is able to connect to other carriers on the 3G network fine.
Click to expand...
Click to collapse
it wont let me select anything, any mode at all.
when you select option, nothing happens, it doesnt go into that option.
ive have a message from a member on this forum, named "ZeroXO" who said he can fix this but waititng for him to get back to me.
he said he knew what the problem was, took my imei no last night and said he will get back to me. so hopefully he will find a solution for me.
ace.1 said:
it wont let me select anything, any mode at all.
when you select option, nothing happens, it doesnt go into that option.
Click to expand...
Click to collapse
Ok that's not even as far as I got.
I went back one firmware version to the one that I was running before the one that started developing the issue (although it ran fine for a week or 2 after the update) that didn't help.
I forgot if you tried to go back to an older one as well or tried one of the country specific ones. You need to check if you've got the snapdragon or the equinox version though.
Hopefully the other guy manages to fix your issue
Thankyou for your kind words and advice.
I changed firmwares a couple of times all 8.0.0 but no luck.
Ive got a member from this forum currently trying to fix it as we speak. He has made a lot of progress and clearly know his stuff and happy to have his help and assistance so hopefully it will be fixed today so ill keep you updated and let you know how i got on.
Thanks
margaret
Can i also extend my thanks to another member named pblim (not sure if i have spelt that right)
Who helped me yesterday to show me how to hide root.
Fantastic help and advice from him. Very kind
Highly recommended member.
So thanks mate.
Regards
Margaret.
Hi first post here but not a complete newbie. But this time I'm stuck big time and would appreciate some help.
I've got a s8 plus that recently started playing up. All of a sudden it started not being able to make or receive calls. But I noticed it only happened when the "conditional call forwarding active" message didn't appear when dialing. I figured it had something to do with call forwarding so try to change the settings on supplementary services settings but when I tried to enter the settings an error message appeared "failed to read data" I tried sending the code manually to cancel voice mail *#022# to see if it would work but I got "connection problem or invalid mmi code" so assumed it could be that the phone is trying to check with the network the forwarding settings as the call starts but for some reason it cannot communicate with it as the mmi codes don't seem to working?? (I'm not that knowledgeable in that area) I tried all the fixes online for the "connection problem or invalid mmi" but none work so I flashed the firmware through Odin even tried a few different ones, I've been playing around with Odin for a while so I'm comfortable with it, I even flashed a pit once for a note 4 that was bricked (just saying so you can see I'm comfortable with using it, not an expert just comfortable) but nothing has fixed my problem my phone is a g955fd running pie and one UI with the latest security update. I've read the duos have some issues with this. I've tried other sim cards on my phone from different carriers and the problem is the same and I'm using my sim on a borrowed phone and no problems. I'm assuming the problem goes deeper than the firmware, could this problem be boot loader related? Would a nand erase and reinstalling the boot loader fix it? Everything else works 100%
Someone please help me, the phone I'm borrowing is an apple and every day I have it I feel weaker and dumber, it's like kryptonite.
Sorry for the long post but I've been browsing xda forums for years and I know that you guys always say to share as much info as possible. By the way I've searched and couldn't find a thread about this but it there is one I promptly apologize and just ask for the link to it if not thanks in advanced.
? G935F or G935U exynos vs snapdragon
Way for snapdragon
Flash https://forum.xda-developers.com/galaxy-s8+/development/rom-t3901074 with odin and test with hard factory reset recoery.
After, flash odin last firmware stock sammobile
Thanks
Thanks for your reply deadedge7
As I said my s8 + is a duos g955fd variant and has an Exynos processor, I'm not sure that rooting it would make much of a difference, as to my understanding rooting doesn't really change the boot loader it just allows you to install a custom recovery and roms. Which is not much different to reflashing a stock rom for all intents and purposes , but I might give it a try anyway. I guess that maybe a rom like the one in the thread you shared might give me some more hidden codes access as a root but I'm not sure. I will try to find a root like it for my variant unless you know of one and can point me to it.
Thanks
Hard reset or flash stock software or hardware problem
For iemi best way is root efs with flash twrp best way for /EFS
https://forum.xda-developers.com/android/general/guide-restore-imei-fix-corrupted-efs-t3116217 read only
Bellboy4510 said:
Thanks for your reply deadedge7
As I said my s8 + is a duos g955fd variant and has an Exynos processor, I'm not sure that rooting it would make much of a difference, as to my understanding rooting doesn't really change the boot loader it just allows you to install a custom recovery and roms. Which is not much different to reflashing a stock rom for all intents and purposes , but I might give it a try anyway. I guess that maybe a rom like the one in the thread you shared might give me some more hidden codes access as a root but I'm not sure. I will try to find a root like it for my variant unless you know of one and can point me to it.
Thanks
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Click to collapse
I am facing the same issue. Same variant. latest update April 1st Security Patch. Data and texting work. but can't make or receive calls. Have you found any solutions?
@unbreakabl3
I am facing the same issue. Same variant. latest update April 1st Security Patch. Data and texting work. but can't make or receive calls. Have you found any solutions?
Click to expand...
Click to collapse
No solution so far. I've rooted the phone and install a couple of custom ROMs but still nothing. I'll try and roll back the firmware and see what happens. I'm no expert but I still think it is fixable. If I find a solution I'll post it on this thread. If you find one please share. My solution at the moment is getting a galaxy A50, very comparable performance with the S8 and really cheap.
Bellboy4510 said:
@unbreakabl3
No solution so far. I've rooted the phone and install a couple of custom ROMs but still nothing. I'll try and roll back the firmware and see what happens. I'm no expert but I still think it is fixable. If I find a solution I'll post it on this thread. If you find one please share. My solution at the moment is getting a galaxy A50, very comparable performance with the S8 and really cheap.
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Click to collapse
I'll keep that in mind. Couple of things to note: I don't get the message conditional call forwarding active. I don't think I ever have.
I tried a different carrier SIM card(T-mobile) and it worked (I'm on At&t). I was able to make and receive calls. Even tried an out of country SIM card and received calls. But my At&t SIM works on other phones perfectly. Go figure lol.
The only other reason I can think of is maybe cos it fell a couple of times from the couch. About 1.5ft. New case kept making it slide off.
Install (Phone INFO SAM).apk
check csc if they are all the same operator
deadedge7 said:
Install (Phone INFO SAM).apk
check csc if they are all the same operator
Click to expand...
Click to collapse
Here is the screenshot from the app
unbreakabl3 said:
Here is the screenshot from the app
Click to expand...
Click to collapse
Original missing and DBT and XSG not same
It must be all same
flash stock firmware odin bl ap cp and csc
Install apk phone info sam
Check csc original and all same
After flashing firmware stock, *#243203855# to choose good csc reset and test