Investigating repair of Emergency Only issue on Galaxy S6 Edge - Android Q&A, Help & Troubleshooting

Hi all!
I bought an S6 Edge second hand and after flashing a stock ROM, I had the "emergency only" calls issue, I tried everything I could find in the forums to no avail and I ended up taking it to a repair service. I did not think they could fix it but they did and I would like to know what they did to it in order to prevent it from happening again and to know if I can leave it as default (not custom OS) so that it can upgrade.
State of phone when bought:
So, the phone was working well with all carriers (from Colombia). The only thing I was able to notice after I bought it was that it was still on Marshmallow (6.0.1) with carrier branded stuff. It was in perfect shape otherwise.
So I downloaded a stock ROM and installed it using Odin. After this the phone would not let me make calls as it was not registering on the network. It did not even let me make emergency calls despite getting full bars of signal and being able to recognise the list of carriers when attempting to manually connect to them.
Important: The ROM downloaded was for the right version of the phone which was the G925i and the IMEI, serial number and baseband were not altered from the original. Also, I checked the phone to see if it was reported as lost/stolen and it was not (of this I'm sure because in Colombia you can consult a centralised database on any carrier's webpage). Also.. Here in Colombia it is illegal for carriers to lock phones.
Steps I took to fix it:
Downloaded ROMs for all carriers, branded and unbranded, I even installed one from Trinidad and Tobago and a LATAM one.
I performed all the tricks to disable and enable flight mode, location services, try con connect manually to the networks, changing to GSM only, GMS/CDMA, international roaming, etc.
I also extracted modem.bin from an earlier version and flashed the modem.bin with Odin (6.0.1 moden on 7.0, 5.1.1 moden on 6.0.1 and 5.1.1 moden on 7.0). All modems flashed correctly and the issue remained exactly the same.
So I finally gave up.. I installed the latest stock ROM which was an unbranded Nougat (7.0) version and took it to a repair service and they fixed it in a couple hours.
What I noticed after the phone was "repaired":
- The phone was rooted, SuperSu was installed, no other root app was installed.
- On SuperSu, there are entries for ADB shell (they all say Superuser command contents have not been logged for this entry) in a two minute timespan.
- The android version was downgraded to 6.0.1, I was told not to try to update it.
- Developer options was enabled with USB debugging turned on.
- The boot option (the one where you can wipe data and cache partition) was left as original (not the TWRP one).
- The ROM used to downgrade was the same I had before but only downgraded the version.
I suspect this same procedure was performed before on the phone but it had the original ROM carrier branded so it seems as if they installed a custom ROM, rooted it, connected with pc and performed some command line stuff to fix it, then cleaned the bootloader to a stock one.
The questions:
Any ideas what did the repairman do to fix the phone? Also, would it be safe to make a full backup with TWRP and flash again a stock ROM upgraded to 7.0 and then flash the backed up modem to get it working? Or would that possibly screw up the repair?
Thank you all in advance for any help. I'm sure there are lots of people out there experiencing the same "emergency only" issue I had but there does not seem to be a fix around, but clearly there is one! So I hope this sheds some light into what could possibly happen.

Related

[Q] Is my phone software unlocked(versus factory) Please helpp?

Hello,
I will have to give background info on this before anyone can help so bear with me please :.
I live in Pakistan and I bought a i9300 directly from samsung. In the beginning of the six months i owned the phone, I never rooted or put custom ROMs on it. Then unfortunately I got SDS. I gave my phone to a local repair shop (non samsung, but highly reliable, I bought the phone from there) who switched the motherboard on the phone. After I got it, I rooted it and started installing custom ROMs on it. First it was cyanogenMod, then Paranoid Android and Supernexus +AOKP and others. Everything worked fine. Then I installed Omega ROM (Samsung based ROM which changes the modem). Everything went fine, but I was unable to connect to my network (No texts, calls, data connectivity). It detected my network(Ufone) but was unable to register on it when I manually tried to. I mega-wiped my phone, cleared cache and factory reset and did everything. Alternatively, the following steps I also tried.
1)Checked if my IMEI is intact. It was. (I have EFS backups too)
2)Checked if my serial # is different. It is still the same (No need for Ariza Patch)
3)Checked if my SIM works. It does on different phones.
4)Checked my APN settings. They were fine. I even manually changed them to match the carriers
5)Changed my CSC settings (using the playstore app). Still doesnt work.
6)Checked different modems from the appropiate thread (I have tried Europe Unbranded, Middle East, Egypt and many others)
7)Restored nandroid backup of original stock 4.1.2 Sammy ROM, still not connectivity.
8)Flashed using ODIN, the stock 4.1.2 ROM for my country (Using SAM mobile). Still no connectivity.
9) Matched my RIL with my baseband (using the GetRIL app), still didnt work.
Stock Samsung 4.1.2 ROM details before OMEGA flash in which everything worked:
AP: I9300XXEMA2
CP: I9300XXELLA
CSC: I9300OJVEMA1
This has happened to me the 5th time now (Phone is currently at the repair shop) and I have sequentially tried every one of the steps I have mentioned. I called up the repair shop and they said that I can come tomorrow and pick it up, all they have left to do is "SIM UNLOCK "the phone. That confused me a lot. I will go tomorrow and ask them details as to what they meant by that. So my question is basically this:
1) Is it possible that the motherboard they put into my phone is from a software-unlocked phone not a hardware unlocked? (Is the 'unlock' on the motherboard of the phone)
2) Is there a way to find out if my phone is software or factory unlocked?
P.S. Every single time I hand in my phone, I obviously unroot it and install stock on it (regardless of the fact that it doesnt connect to the network). But every single time I get my phone back, its ALWAYS ROOTED.. I even asked the technical team guy and he had no idea what I was talking about (repairmen here dont have that much of knowledge, they tend to follow guides online, thats it). So could it be that my connectivity issue is just because its software unlocked and not hardware?
Thank you!
Anyone?
bump
P.S. Every single time I hand in my phone, I obviously unroot it and install stock on it (regardless of the fact that it doesnt connect to the network). But every single time I get my phone back, its ALWAYS ROOTED.
Not a genuine service centre then .
IMEI
MODEM
CSC
all correct for network suggests a hardware fault .
jje
JJEgan said:
P.S. Every single time I hand in my phone, I obviously unroot it and install stock on it (regardless of the fact that it doesnt connect to the network). But every single time I get my phone back, its ALWAYS ROOTED.
Not a genuine service centre then .
IMEI
MODEM
CSC
all correct for network suggests a hardware fault .
jje
Click to expand...
Click to collapse
But it's not a hardware fault? I mean whatever they do, they have to root the phone to be able to do it. Any idea what settings or configuration they might have changed using root for it to connect which I haven't already tried?
Sent from my GT-I9300 using xda app-developers app

[Q] Phone settings say g900f but odin says g900t

Hi Guys,
2 months ago I bought a Samsung s5 in Hong Kong.
While travelling through South East Asia this device worked fine.
While traveling through New Zealand (Old home) this phone worked fine.
While traveling through America (New Home) this phone worked fine for the first 2 weeks (on the metroPCS network).
The problem:
Randomly after 2 weeks the s5 stopped connecting to the metroPCS mobile network even though the network was available (btw metroPCS uses the T-Mobile network). It gives errors such as network not available or cannot register with network.
Things I have tried:
-Im sure the APN settings of the phone have not changed and I have double checked to see if they are correct.
-replacing the sim card with another does not fix the issue
-soft and hard reset of the phone does not fix the issue
-Getting metroPCS to refresh the service on this number does not fix the issue
Other important info:
-This phone was purchased in hong kong but it is from the Philippians according to Kies's firmware information (XTC is the country code)
-It is running a custom allianceROM that must have been installed by someone in hongkong
-The device is rooted (superuser app installed)
-the model number as shown in settings is g900f BUT when attempting to flash with odin the phone displays g900t and fails to flash the latest Philippians verison of kit-kat
I have 2 questions:
1. Any ideas why my network connection has suddenly self destructed (and how to fix)?
2. Would flashing a stock ROM to my s5 help? and if so why is there conflicting information on which model I own (g900t/g900f)?
Please help. I do have some know how on flashing android devices but i've really hit the wall on this one guys!
Cheers,
Yetti.:cyclops:
It's not uncommon for the model # to be different with a custom rom as that is a very easy thing to edit in the build.prop. It should tell you under the battery which one it is. As far as the network issues, check to see if the baseband and IMEI are still there and not listed as unknown or incorrectly. It's possible you could get away with flashing the appropriate modem that matches with your update and that might work better in this region vs the previous one.
Please list the Alliance rom version and baseband version here in case it's relevant to your issue.
More info
Im not sure if this helps but looking through the build.prop file in the system folder my ro.product.local.region=GB
When in recovery mode the region is set to XTC (Philippians) using mutli-csc.
Also my IMEI number seems ok and is NOT blocked.
Cheers. Yetti :cyclops:
Baseband and rom etc
Thankls for your reply!
Sorry when you say "under the battery symbol" do you mean in /odins boot script on the device/ or /in settings on the phone/?
Baseband is g900TUVU1ANCH
Build Num: AllianceROM_G900F_XXU1ANCF
If the "no network" issue can be solved with the current firmware that would be the most desirable solution but going through the flashing process may be a good idea for my learning process, and will help with future updates.
Do you think getting back to a stock rom would help me?
tHANKS AGAIN!:cyclops:
Model confirmed to be g900t
Sorry i didn't understand the "under the battery" thing. I was lost in software world. The sticker under the physical battery says SM-900T so i guess that confirms that it is a t-moble verison (and the baseband is therefore correct).
I will try to flash the T-Mobile stock image to the phone and see if that works.
Also i will try to flash a modem (after i work out which one i need).
Cheers, Yetti :cyclops:
Current status.
Flashed the stock T-Mobile firmware to the phone. No success.
Flashed new modem to the phone. No success.
Will go to the T-Mobile store tomorrow to see if they can help (I doubt it but i have to exhaust all the options).
Any more help would be appreciated...
cheers, yetti:cyclops:
By under the battery I mean like to take off the battery cover of the phone and pull the battery out and look at the sticker found there.
G900t.
es0tericcha0s said:
By under the battery I mean like to take off the battery cover of the phone and pull the battery out and look at the sticker found there.
Click to expand...
Click to collapse
Yep it says g900t (see above)
As per flashing a modem. I have heard that it is possible to flash any modem for any version of the s5 to the phone. Some work well and others not so much. I have tried 2 T-Mobile modems (baseband) the G900TU1ANCH and the G900TUVU1BNG3 with no success. Do you have any recommendations for a modem to try (or even a custom ROM that might help?)
Cheers,
Yetti :cyclops:
I know that you mentioned they refreshed the service for your number, but do they have the correct IMEI in the system for your account? Metro makes a big deal about that now and you can't just take your SIM from another phone and pop it in a new one and go like you can with pretty much every other service (Cricket is like this too now).

Can't make/receive phone calls....

Need some expert here for help before I use ODIN to restore the factory firmware package.
Currently have G925W8 (Canadian Rogers) and currently running Int 5.1.1 rom on it. All of sudden my phone can't make or receive phone calls. I mean when I tried to make the phone call, it just ends right away, and no one can call in to my phone number either and goes to VM directly.
I tried different kernel (Arter/Hacker/UniKernel) and different rom combination...Still no GO...
I tried to apply Mr.X Audio Patch too (not sure how many patches are there, but I only download the one for Mr.X audio patch for 920T) and it doesn't work either.
I know in G925W8 forums talk about different BL/Modem, different combination and no go either.
Please note my phone works perfectly and I can get the internet connection (LTE) but just can't make the phone call. Even now I won't use the phone much but still need to have the phone work.
I think the major issue is when I am in the phone, go to call settings -> More Settings that give me an error "Failed to Read data Network or Sim card error".. I though it's my sim card, but i plugged it in my 1+1 and have no issue making/receiving calls..
Anyone that have any idea?!?
calling in out
had the same problem, in my case i installed an original samsung 5.1.1 and a kernel to root the phone, i got the same as you, everything worked but the phone.
only way to get out, is download from samsung firmware repository or sam mobile the EXACT ROM FOR YOU MODEL AND CARRIER (i cannot emphasize enough the CARRIER) believe it or not if you want to install an original rom you must respect the carrier for a custom rom it's something else altogether
in your case you odin with the rom of you phone/carrier IF IT WORKS (NOT ROOTED) I mean ccalling in/out, then install a different kernel in order to root.
if it works then your previous kernel (as was in my case) was the culprit
good luck
the carrier is where you bought the phone or the cell co affiliated to the store where you bought the phone, there's ALWAYS a link from "A" carrier in your phone
Elin28 said:
Need some expert here for help before I use ODIN to restore the factory firmware package.
Currently have G925W8 (Canadian Rogers) and currently running Int 5.1.1 rom on it. All of sudden my phone can't make or receive phone calls. I mean when I tried to make the phone call, it just ends right away, and no one can call in to my phone number either and goes to VM directly.
I tried different kernel (Arter/Hacker/UniKernel) and different rom combination...Still no GO...
I tried to apply Mr.X Audio Patch too (not sure how many patches are there, but I only download the one for Mr.X audio patch for 920T) and it doesn't work either.
I know in G925W8 forums talk about different BL/Modem, different combination and no go either.
Please note my phone works perfectly and I can get the internet connection (LTE) but just can't make the phone call. Even now I won't use the phone much but still need to have the phone work.
I think the major issue is when I am in the phone, go to call settings -> More Settings that give me an error "Failed to Read data Network or Sim card error".. I though it's my sim card, but i plugged it in my 1+1 and have no issue making/receiving calls..
Anyone that have any idea?!?
Click to expand...
Click to collapse

Samsung S7 Edge: A brick or a solution?

I purchased a 2nd hand Galaxy S7 Edge from someone on Facebook Marketplace. It's a dual sim model (which is not directly available in South Africa) - When I collected the phone the old owner manually removed apps which I found to be strange as I was planning on doing a factory reset anyways, but he said I first had to update the phone before I can do a reset. Once I got back home and put the phone of WIFI > Software update I got a message saying that the software was not verified (leaning towards the phone being rooted). I also saw that he had multiple copies of Whatsapp which I knew was not possible with a normal ROM.
Not wanting to constantly see his personal info, I decided to reinstall the base S7 Edge software I found sammobile.com - Using odin this worked and I was able to reset the phone, but now there is no network coverage at all. I have tried everything, even downloaded a different version (both XDA and XDE) but no luck. I took it to a cellphone shop and they say they think the moterhboard is faulty which I doubt, when I got the phone and put in my simcard the first time around there was no network issue at all, this only started once I reinstalled the original rom from Samsung.
My understanding now is that the phone was likely purchased in UAE or Dubai and the network was unlocked (not sure how this works) - When I reinstalled the default samsung rom the network lock is back and I can now not use the mobile device with my local provider.
What options do I have? Is there another rom (even if it's not samsung, happy with anything) I can use on the device? I presume they had a different rom installed anyways to get it working in the first place, but I was stupid and never made a backup of the rom so now the phone is nothing more than a wifi device.
Any assistane would greatly be appreciated!

Sm-g925f model wont accept any other stock firmware except sc-04g

I have been at this issue since Saturday and gone through a lot of possible solutions but to no avail. So first of all i am in Ghana. A friend came to me with his s6 edge that he had some issues with his phone going off when he unplugs the charger and getting stuck in a bootloop when turning it on unless he plugs a charger in before it boots up fully(even with full charge)
So first of all he wanted to do a factory reset(phone was not rooted). Factory reset completed successfully but issue still persisted.
Specs of the phone was:
android 5.0.2
model number = SM-G925F
original csc (i wasnt able to note that down because downloading stock firmware was going to be the last ultimate weapon. first i was going to try some custom roms to see if it fixed the issue. Besides it was working fine here in Ghana.)
So that's when i flashed a twrp and i dont exactly remember but i think i might have tried to flash a lineage OS or something. But long story short, when u try booting up, the samsung galaxy edge screen with powered by android came on and stayed there. and it did not go on to boot up.
After trying through the night i then decided to use the ultimate tool and flash a stock firmware. Try as i might none of them got past the "Repartition Operation Failed" portion of flashing it. The Pit File was becoming an issue. Tried firmwares for my country, countries nearer to us, contries in africa and finally even european firmwares. And since from reading from here and other forums that the F variant was an international version the international pit files should work but they werent.
All this while whenever i go to Odin Download mode on the phone, the product name there was SM-G925D. This started the confusion because at that point i had looked through alot of firmware and that was not an option. When i searched google for that, the search results mostly correlated it to SC-04G, which looking at it was a Japanese firmware. I didnt want to use a japanese Firmware for obvious reasons. At least i wanted a firmware that was by default in English. But after about 2 days and seeing a lot of answers saying stuff about going to settings and checking stuff there plus me wanting to see an interface and work my way from there i succumbed.
And lo and behold, it flashed on the first try(i used the 4-part files firmware. It was android 7.0). But when it came to booting up, the splash screen had changed from samsung bla bla bla powered by android to NTT DOCOMO powered by android. But it booted up and i skipped through the setup. i had to change the language to english but there were a lot of japanese bloatware that came with it. But as i expected when i popped a sim card into it, and restarted the phone, there was the not available symbol(circle with a bar across) where the network bars were supposed to be.
Seeing that this was not going to do, i went to the settings this time to check on any important details and this were the new details
android version 7.0(January, 2018)
model number=SC-04G
build number was now SC0.....(cant write the full code as im currently in odin mode)
But obviously it was the japanese network. After this i have downloaded more firmwares and they all fail at "Setting PIT...Re-Partition failed". Somtimes i try to mix the 4 files up using maybe the CSC portion of the Japanese firmware but BL, CP, and AP of firmware from my region. This time the error is "sboot.bin failed".
And that has been my grind till now. Downloading likely firmwares and all failing to doing extremes like the mix and match. When the mix and match with BL, CP, and CSC of Japanese with AP of my region works and eventually boots up, there is no touch input. The touch does not work. When that happens i just have to start all over with the SC-04G, which never fails to work.
I have even seen some things about changing csc files in the file explorer with root so i flashed the Japanese FW and rooted it. Went through the processes but to no avail.
PS:
The first part of the Odin screen where you choose to continue or reboot is now completely in Japanese whiles it was formerly in English.
And there is no indication on the phone itself that it was from Japan. The back says Samsung and below it says Galaxy s6 edge. Friend bought it from a shop in Ghana here brand new.(not from a carrier)
****So here lies my confusion. How come a phone with an original model number of SM-G925F have a Product name of SM-G925D in Odin and hence only Flash Japanese Firmware SC-04G(CSC code = DCM) but would not flash any of the international variants. Even if i can eventually get the Japanese firmware to read the sim card we can manage it that way. But thats for when there are no options left.
So please i would like to know your ideas as to how this is happening and any possible solutions that might be different from what my batallion of open tabs are telling me. You can also let me know if you want any more details i might not have included. Looking forward to hearing from you guys.
Update On Issue
I ended up using the japanese firmware in the end because it wasnt picking anything else.
This time after the setup process, it picked up the sim card and the imei is available. So since network is now available i just rooted it with cf autoroot and removed the japanese bloatware and everything looks normal now.
Except the original issue of going off randomly whn power cable is pulled out even when having full charge.
:good:

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