[urgent help] permanent no service - General Questions and Answers

It's been two weeks and it's getting really frustrating now! I can't get my signal, neither on Lineage OS nor in the stock ROM. My IMEI number is still intact. I can't find a modern.bin file in my stock firmware to update my modern but when I flashed my stock firmware,the baseband version got updated to the latest version. I tried restoring multiple nandroid backups with efs but nothing works. I have read almost every section and post on this forum and others but I've got nothing working on my device. I tried deleting the phone app and contacts too but
This thread is my final hope of getting any kind of help. I just hope someone is able to help me out :crying:

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[Completed] Formatting Samsung S3 Problem

Hey, so basically I'm in a situation where I have no idea what to do.
I recently just got a new phone, and am going to give my Samsung Galaxy S3, SGH-T999V model - from Wind Mobile to my Dad. Basically, when I first got the phone - a couple months after, I decided to try Rooting it, and I did, successfully. Since I didn't really know what to do with my rooted phone, I decided to unroot it - then tried rooting it again some months later, but it didn't work successfully. Basically my phone wasn't rooted, but I had the "Team-Win" recovery on it.
I wanted to bring my phone back to it's original state - and have the stock recovery on it. After some Googling, my solution seemed to be to flash the stock rom for the SGH-T999V model onto my phone using Odin. And I did that - and it worked successfully. But I still couldn't check for OTA updates or anything, it said my phone had still been modified in an unauthorized way.
Now that I need to give the phone to my Dad, I have to format the device and erase everything. This is where my problem starts. When I try to format it (using the Stock recovery), I see a bunch of error messages, with the Android logo falling down in a kind of dead way. I reboot my device, and nothing changes.
It still has all my data, and everything on it.
Sorry if this is the wrong area to post this (I'm relatively new to the forum), and if my problem doesn't make much sense - I've tried being as detailed as possible. Could anyone help?
Hi, thank you for using XDA Assist. Flashing the stock firmware should show you to get ota's. This should have everything you need,http://forum.xda-developers.com/galaxy-s3/general/samsung-galaxy-s3-sticky-roll-thread-t2344125. Also, you can ask further questions here,http://forum.xda-developers.com/galaxy-s3/help/help-thread-galaxy-s3-question-t2690307
Thread closed

Null IMEI/Baseband

Hey guys, so I'm pretty new to all this, I wanted to root my Galaxy S6 - SM-G920F - to be able to play pokemon from home... yes, that sad. So I started reading XDA like my brother recommended and "learnt" how to root my phone. In the beggining when i was installing SuperSU I had some problems and my phone went into bootloop, but it was because of my cable, I then reflashed it with another cable and it fixed the bootloop issue. I went on to install TWRP and that's when mistakes started happening. First of all, I forgot to back up my phone, including the EFS which, after reading countless posts, I understood is what gives the phone the IMEI code.
I tried installing the standard Xposed on Galaxy S6 (only later on i learnt you must use Wanam on samsungs from S6 and above) and my phone went into bootloop, with out knowing what to do (i tried the uninstall zip but it was failing to install from twrp...), very stupidly, i deleted my System folder... After much more reading, i tried using KIES3 and Smart switch to recover, but they always ask for the stupid recovery code,which I don't have, when i tried the upgrade and initialization option... I tried costum roms and a ****load of stuff. Custom Roms would usually work, my phone would turn on and that's when i noticed my SIM wasn't beeing recognized. (later on i also found out i didn't have IMEI) tried flashing the appropriate MODEM for my galaxy but it all failed. I don't remenber all the stuff I did tbh... I tried the tyrannus ROM and XtreStoLite Universal Deodexed Mod Edition ROM, and tried flashing the MODEM that comes with the last mentioned ROM and yeah, probably just useless attempts that wouldn't fix the problem in the first place. Then i tried flashing Stock, from Sammobile: I bought my phone at the Portuguese vodafone, so G920FXXS3DPF5_G920FVFG3DPC1_TCL (marshmallow) with Odin but it would always fail. Then i read something about splitting the folder in 5 and flashing 1 by 1 and it would work until the Hidden zip, which would always fail. I tried not flashing Hidden and my phone turned on and I went back to stock although, still with out IMEI or baseband. Then after more reading, i found out the best solution would be giving it to a store.
So i just rooted, twrp and did what i wanted to do in the first place. With the correct Wanam Xposed this time (later on i found a way to hack pokemon with out root... sucks :v) and i managed this time.
Yesterday i went to the stored and today the guy told me to go get it, with high hopes i went there, to find out he couldn't fix the problem... He tried Octobox to rewrite the IMEI from the one in the back of phone, but he says it failed. So now I really don't know what to do. The guy went on holidays and told me to go back there when he comes back, we wants to try to downgrade to lollipop and try to fix it from there (he said he has more tools available to work with). It could work, Galaxy S6 just got marshmallow 1/2 months ago officially, and i bought the phone in october of last year, so maybe with the ROM it came with, I really don't know.
At this point I'm just looking for suggestions. I'll be paying attention to the forum and try to reply to all the questions you might have to my best. Thank you all for your time and patience!
:EDIT: so... another major mistake i guess, I found out today, by asking my parents where they got the phone, that the phone wasn't actually purchased in vodafone, the phone was bought in a Samsung store, so it is unblocked. So most likely I've been flashing the wrong stock rom all along. Could you guys guide me in the right direction from here?
What would be the appropriate ROM for the unblocked? vodafone portugal is TCL, optimus is OPT and MEO is MEO. There is another one under the name TPH, would that be the appropriate one?
Solved
Okay... using the correct stock rom fixed all my problems... sorry for wasting your time guys! TPH was the right one
Where did you find your roms?

Samsung Galaxy S4 I9500 - NO SIGNAL (IMEI/IMEISV:null/null;Baseband Version:Unknown)

Hello everyone,
As this is my first thread, and I have been reading previous assists based on IMEI fixing and couldn't find the answer I am looking for, I really hope that the XDA community can help me fix my Galaxy S4 I9500. I will try to explain the problem the best I can, and I will create a list of every solution I have tried in the 3 week phone fixing saga I have.
1. The problem :
My friend decided he does not need this phone anymore, everything was fine with it except the battery was swollen(but I bought a new one so it doesn't matter). The day before he gave it to me, he accidentaly dropped it in the toilet and it couldn't boot. I opened the phone, cleaned it with alchohol and the phone booted up normally. The thing I noticed was that in the status bar the network symbol was replaced with No signal symbol. I tried 3 SIM cards and none worked. I decided to downgrade to 4.4.2 KitKat version and this is where everything went even worse. I used Odin to downgrade a firmware downloaded from sammobile.com, but I didn't create an /efs backup because I have flashed an Alcatel Idol 2 before and there were no problems with the IMEI or so. It turns out that Samsung devices are different and I am left with NO EFS BACKUP. I know, I should have checked what to do before flashing the device, but what's done is done. The device is doing everything great, there are no problems with Wi-Fi or Bluetooth either, except I cant connect to a network because IMEI is null/null and the Baseband is unknown. The thing is, I am not sure if the IMEI is wiped completely because of a hardware problem, or it's software related because of the /efs folder, because I am not a developer, but a civil engineer :silly:
2. Solutions I've tried so far :
- Flashed many different Android versions;
- Flashed a Lollypop with adonis.pit with Re-partition checked on Odin;
- Tried writing an IMEI and repairing the EFS with Octoplus box;
- Tried flashing an EFS backup from my friend's Galaxy S4 I9500 ( IT IS ILLEGAL IN MANY COUNTRIES, NOT IN MINE, BUT I WANTED TO TRY AND CHANGE THE IMEI LATER SO IT WOULD NOT BE A PROBLEM );
- Tried flashing with a IMEI_null_fix.tar.md5 file which i found on a forum and that didn't fix it either;
- Tried KIES to return the stock ROM but either it does not recognize my device, or it says that my device could not be initialized or so;
- Took the phone to service, but in my town the only service we have is not very professional and they didn't even know the IMEI null does not mean that I will have no wireless connection/bluetooth connection, so they didn't fix it either;
- Tried with EFS Pro, Terminal Emulator and programs similar to those, 3rd party and PlayStore ones;
- Maybe other things but I could not remember because I think I tried everything...
I don't know if the problem can be fixed, but deep inside me I hope that there is a solution, and I think this is the best place to search for help, because it is a great phone and I don't want to throw it away just like that.
Thanks in advance everyone, hope you can come up with a solution.
Anyone please ?
You may get more help in the s4 forum as this is the s6 forum mate.
christopherrrg said:
You may get more help in the s4 forum as this is the s6 forum mate.
Click to expand...
Click to collapse
An admin redirected this thread here, its not me haha...
Thread closed.
OP reposted in the correct section.

[Completed] Bootloop problem on Samsung Galaxy Tab 2 10.1 (P5100)

Hello!
I have the following problem and after countless searches over many forums I ended up finding no answer:
About 4-5 months ago my P5100 started to restart itself after 1 or 2 minutes of functioning properly (restarts even faster if i try to connect over Wi-Fi or install an app). I thought that if I leave it for a while everything will be ok, it wasn't the case so I started trying to fix it. Before I go on I mention that my P5100 was rooted , running CWM version 5.5 and CM10(10.1.3), i haven't messed with the rom, recovery, firmware etc. for more that one year and a half so it started all of a sudden. I tried everything starting from simply updating the CM version to ADB commands and finally flashing back to the stock firmware with Odin. The wipe data/factory reset didn't work neither in recovery nor commands, I even tried to delete everything via Internal Storage in my pc through USB. Every time it reverts itself to the point it was left before although everything seemed to work just fine no errors or so. It doesen't remember after reboot any setting I made or any app that i installed(if I manage to install one) it is like i didn't do anything at all to it. :crying:
Many thanks for taking your time to read my thread and maybe help me:laugh:
warriorsers said:
Hello!
I have the following problem and after countless searches over many forums I ended up finding no answer:
About 4-5 months ago my P5100 started to restart itself after 1 or 2 minutes of functioning properly (restarts even faster if i try to connect over Wi-Fi or install an app). I thought that if I leave it for a while everything will be ok, it wasn't the case so I started trying to fix it. Before I go on I mention that my P5100 was rooted , running CWM version 5.5 and CM10(10.1.3), i haven't messed with the rom, recovery, firmware etc. for more that one year and a half so it started all of a sudden. I tried everything starting from simply updating the CM version to ADB commands and finally flashing back to the stock firmware with Odin. The wipe data/factory reset didn't work neither in recovery nor commands, I even tried to delete everything via Internal Storage in my pc through USB. Every time it reverts itself to the point it was left before although everything seemed to work just fine no errors or so. It doesen't remember after reboot any setting I made or any app that i installed(if I manage to install one) it is like i didn't do anything at all to it. :crying:
Many thanks for taking your time to read my thread and maybe help me:laugh:
Click to expand...
Click to collapse
Hello and welcome to xda-assist,
your device has a quite good supported device specific forum
https://forum.xda-developers.com/galaxy-tab-2/galaxy-tab-2-unified
with even twrp 3.0.3 and pretty decent marshmallow builds, even official LineageOs nightly support started this week..
https://download.lineageos.org/espresso3g
Twrp 3.0.3
https://www.androidfilehost.com/?w=files&flid=48848&sort_by=date&sort_dir=DESC
If want to sort out your present issue with your slightly outdated software instead you'll have to visit your device specific help thread
https://forum.xda-developers.com/galaxy-tab-2/help
or general help section
http://forum.xda-developers.com/android/help
Good luck
Sam Nakamura said:
Hello and welcome to xda-assist,
your device has a quite good supported device specific forum
https://forum.xda-developers.com/galaxy-tab-2/galaxy-tab-2-unified
with even twrp 3.0.3 and pretty decent marshmallow builds, even official LineageOs nightly support started this week..
https://download.lineageos.org/espresso3g
Twrp 3.0.3
https://www.androidfilehost.com/?w=files&flid=48848&sort_by=date&sort_dir=DESC
If want to sort out your present issue with your slightly outdated software instead you'll have to visit your device specific help thread
https://forum.xda-developers.com/galaxy-tab-2/help
or general help section
http://forum.xda-developers.com/android/help
Good luck
Click to expand...
Click to collapse
Thank you very much i will proceed to those forums and seek further asistance :victory:

[Completed] No sim card detected

micromax e311, 4.4 kitkat rooted and CWM philztouch 6.59
hi guys sorry for this new thread, i know there are other similar threads like this too but i know those posts wont help me coz i tried everything, so please dont shout at me, and in near future someone too will face problems like me and they may try to fix and nothing will work for them, so here it is.
last night i was trying many different custom roms like touchwiz, mangna, and others etc which made my phone bootloop many times, but that didnt worry me as coz i fixed that by flashing another rom but here the issue starts where my phone cannot detect sim card no more and it was in slot 2 as my sim slot 1 was broken many months ago, baseband and everything was unknown, i tried everything every imei changer app from playstore to factory reset, previously nandroid backup, stock rom flash, mtk engineering mode in cds information( now cds information also greyed out , no idea how). nothing worked!!! so i kindly request you Developers to help me out of this situation , any help will be appreciated
Snapshots attached.
N.B- I DONT HAVE PC ..
Russel Got stucked said:
micromax e311, 4.4 kitkat rooted and CWM philztouch 6.59
hi guys sorry for this new thread, i know there are other similar threads like this too but i know those posts wont help me coz i tried everything, so please dont shout at me, and in near future someone too will face problems like me and they may try to fix and nothing will work for them, so here it is.
last night i was trying many different custom roms like touchwiz, mangna, and others etc which made my phone bootloop many times, but that didnt worry me as coz i fixed that by flashing another rom but here the issue starts where my phone cannot detect sim card no more and it was in slot 2 as my sim slot 1 was broken many months ago, baseband and everything was unknown, i tried everything every imei changer app from playstore to factory reset, previously nandroid backup, stock rom flash, mtk engineering mode in cds information( now cds information also greyed out , no idea how). nothing worked!!! so i kindly request you Developers to help me out of this situation , any help will be appreciated
Snapshots attached.
N.B- I DONT HAVE PC ..
Click to expand...
Click to collapse
Hello and welcome to xda-assist,
we actually don't do technical support, we're here to guide you to the most suitable board on xda, unfortunately the phone you're using has no specific device Forum, make sure you give proper information
https://forum.xda-developers.com/general/general/guide-how-to-question-t3464199
and ask here again
http://forum.xda-developers.com/android/help
My personal opinion is that you successfully damaged your efs / nvram partition with your flashing adventure, so a proper backup would be the best help, have you backed up this critical participation? On most mtk devices you can restore imei with engineer mode but you'll have to redo it every factory reset, unfortunately it seems you tried that already, if non of this works I would ask in the mentioned help section but it could also very likely be that your phones phone functionality can't be recovered anymore..
That's why first thing is always a proper backup of all critical partitions and efs / nvram is definitely one of the most important ones.. If you missed that a recovery method can't be guaranteed..
Good luck

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