[Q] IMEI gone. Wanting to downgrade phone for testing. - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

The other night my gs4 running OC3 decided it didn't want to live anymore and randomly rebooted and hung at the ATT splash screen. Took the phone to best buy and had them reflash it. The phone would then boot but ran incredibly slow and certain apps just wouldn't open. Fast forward to last night and the network died. My IMEI is gone and everything having to do with the phones identification was wiped out.
I'd like to downgrade the phone from 5.0.1 to 4.2.2 and possibly get twrp onto it. I don't care about tripping knox or bricking the phone as I've already gone and got a new one. Worst case scenario I have a brick, best case I can install custom roms and use it as a multimedia device. Can anyone point in the right direction for experimental methods people are too afraid to test or guides that might help out? I did some searching and found a few relevant posts but nothing concrete relating to this situation. Any help is appreciated!

http://forum.xda-developers.com/showthread.php?t=2370699
Could try hear to get imei back

Related

[Q] I337 ROM/WiFi trouble for a "not quite noob"

Hey folks, hope I`m not coming off as one of the "hey, I broke my stuff, how can I fix it without anyone knowing I broke it" types LOL. I`ve actually been modding Android devices since my Droid X what seems like ages ago, and have done a few along the way so it`s not new in theory. So....I`ve got an I337 S4. It appeared with 4.4.4 on it, and you can imagine how that went when I started modding. My ultimate goal was/is simply to have the native tether app working (and it was, very briefly). Long story short, I bricked it, and brought it back with 4.3 on Odin. It functions fine with the exception of Wifi. It won`t activate wifi, a very, very common problem I`m reading. I`m totally comfortable doing the mods to get it going, I just don`t know what I need. It`s rooted. (here`s where I`m lost): Baseband version is FNJ4, bootloader is FNJ4, but the BUILD number is MK2. Tried the BypassLKM method, no dice. So my question is this: What is the simplest way to get WiFi access back so I can get the Native Tether function going again? If everything was FNJ4 or MK2 I`d be able to make something happen, but several approaches have gotten me bootlooped and I`1m just ready to get it right (safestrap has saved my a$$).
Thanks for any help!!
update
See, a studious and persistent student of modding gets the worm LOL. I got my WiFi back with this procedure right here http://forum.xda-developers.com/galaxy-s4-att/general/how-to-root-i337ucufni1-t2881298
I used the safestrap method without a hitch. Hope it helps someone else out there

[Q] Unable to remove custom padlock stock lolipop

I have tried everything I can possibly think of in a short period of time, and need an answer in a hurry. The phone (Verizon Samsung Galaxy Note 3 N-900V) was rooted back when kitkat was the main OS using geohot's towelroot (or possibly kingo root I can't remember which i used after I got the phone and upgraded from ICS). I have 2 of these exact same phones, used the exact same rooting method, and unrooted by uninstalling the superuser app, rebooted, and installed the OTA update to lolipop. My phone works fine, (the one I'm typing from) however, my other phone decided to take a dump. It's a software bug between the samsung firmware and the new lolipop OS. It was working for several months, then all the sudden it wouldn't recognize/register the APN. Now it doesn't see anything just about with the phone. Not even the IMEI from the phones serial number. The sim card has been replaced twice and has worked for a matter of a few hours, however, upon restarting the phone, it goes back to no service, and nothing is registered or recognized. I reflashed the phone with the stock 5.0 Lolipop using Odin several times to no avail. My phone (one I'm using now) once did this months ago, and I was able to access the service menu and reregister the SIM card and phone has worked fine since. With this other phone, I can't get into the service menu at all because nothing is registering. So, after reflashing 4 or 5 times, factory reseting from both the OS and from recovery booting, it still has the same issue. Here is my question. It used to be when I reflashed, the custom padlock would disappear. I'm getting a new phone tomorrow, and I need to get rid of the custom padlock before I return the old phone. I can use Odin, or whatever but it has to be something, I can do while it stays stock. The knox counter has not been tripped, and the flash counter is not tripped nor showing anything on the download mode. Everything lools, and feels stock, except that custom padlock. Is there a way to get rid of that custom padlock unrooted, by reflashing? I even used a pit file to repartition, but that didn't work either. Need help A.S.A.P.!
I would just hard brick the phone just before returning it...they will just throw it out at that point and your secret will be safe.
Hard Brick
xxperrin said:
I would just hard brick the phone just before returning it...they will just throw it out at that point and your secret will be safe.
Click to expand...
Click to collapse
You thinking maybe a NAND erase?
Hard Brick
I've thought about flashing the wrong rom too but dunno if that will work 100%. I either need to fix it, or make it 100% unrecoverable. Any advice?

Figuring out the state of an S7 purchased used off eBay

So my gf bought herself a used S7 SM-G930A off eBay. I'm honestly unfamiliar with the S7 or the ROM scene as things apply to is so I'm coming into this at a disadvantage (I'm on an S5). However things don't seem quite right:
1) on the boot screen, there's an unlocked padlock icon with "Custom" under it
2) There's nothing for Software updates under About Device
3) Build number MMB29M.G930AUCS2APC2, Android Security patch level "February 1, 2016" (out of date?)
4) Repeatedly gets message: "Security notice: Unauthorized actions have been detected. Restart your phone to undo any unauthorized changes"
I checked some videos and I don't think this is a fake S7, but maybe it was rooted and/or had a custom ROM in a previous life. Honestly, if it's been rooted she really doesn't need that. I'd prefer to take it back to unrooted stock for her so she can have the normal consumer experience, getting carrier updates OTA, able to use Android/Samsung Pay, etc. Can anyone shed light on the state of things and guide me into getting her to where she needs to be? I'm ok running ODIN but am having trouble finding the latest stock ROM. Thanks.
(I apologize for not doing the normal amount of due diligence searching I'd normally do before pleading for assistance, but she's in a pickle now being phone-less until we can get this working).
The first thing you should do, if you haven't already, is check the IMEI.
https://swappa.com/esn
Many sellers on eBay buy cheaper phones and install the ATT rom. If it is a genuine att phone, you can restore it to stock by flashing software through Odin
Here is the latest post I found with the latest ATT software:
http://forum.xda-developers.com/att...are-g930aucs4api2-bootloader-4-t3481957/page2
This thread shows how to root and restore the galaxy s7:
http://forum.xda-developers.com/ver...s-root-install-xposed-unroot-t3411039/page206
Thanks, Luke. I just tried that link and the IMEI comes up clean and correct for the model.
As is my style, I didn't stop working on it after I posted that last night. I ultimately did find all the pieces for a stock re-flash, getting ODIN set up in a Windows 10 VM. It seemed to work, not only giving the phone a slightly newer firmware and security update, but fixing all the weirdness. So with any luck she's good to go. I suspect the phone was customized/hacked up a bit by the previous owner, and he didn't do a proper job returning it to 100% stock. Thank goodness she had someone like me who could fix it for her, otherwise an normal innocent buyer would've been in for a world of frustration and hassle.

Samsung Galaxy Sky J3 SM-S320VL TracFone not flashing....

Here is the issue. A friend of mine had gone a bought a Galaxy Sky SM-S320VL from TracPhone. And had been using the phone without any problems until a couple of weeks ago. Then he decided to do a Factory Reset. Instead of doing the software reset, from with in Settings, he went and did a HARD Reset without unlocking the google account. And guess what, he can't remember the account information for that phone. And came to me to reset the phone. (As I had to deal with this problem in the past with other people and their phones.)
I have downloaded the only stock rom I can find for this phone and flashed it with Odin3. But for some reason the flashing of the rom is never done. By this I mean, the phone downloads the rom as Odin sends it. Odin reports a Success with the flashing. But, when the phone reboots. The system has not been reset and FRP is still active.
I have flashed only the AP, and the phone reboots directly into setup and shows a message about an unauthorized Factory Reset.
I have flash all 4 files in the ROM set (BL, AP, CP, and CSC). and Odin states the flash was a success. The phone reboots, goes to recovery and states Starting System Update. Goes so far into the update, then stops and shows Erasing. After a short time of showing Erasing it reboots to setup. Where again the phone shows the message about authorized Factory Reset.
I have used Odin3 v3.9.0, v3.11.1, v3.11.2, v3.12.5. And I have updated to the latest USB drivers from Samsung.
So my question is this. Has anyone had come across this behavior before? And how can I get past this?
The phones particulars:
Name: Samsung Galaxy Sky
Model #: SM-S320VL(GP)
OS v: 6.0.1
Firmware #: S320VLUDU2APJ3
Model #, as reported by Downloader: SM-S320VL
Note: As a strange side effect of when I flash all 4 rom files. For some reason once the phone has failed the system update, erased and has reboot. I have complete access to the phones User data area from within my computer. But, I am unable to access the phone with adb.
Hey folks,
I'm having the exact same issue as the OP. Odin does a successful install on the phone but I get the unauthorized reset message and then Wifi does not work when prompted on the next screen.
Is there a tracfone version of the rom or a fix that anyone here knows of? Thanks!
@drasnah
I have yet to get any kind of reply from anyone on this. Either now one knows, and is not stating so, or doesn't care.
I have seen the wi- fi fix in another thread.
Modify /system/build.prop:
ro.securestorage.support=true to false
Hope that helps!
20eyes said:
I have seen the wi- fi fix in another thread.
Modify /system/build.prop:
ro.securestorage.support=true to false
Hope that helps!
Click to expand...
Click to collapse
First this is not a wi-fi problem it is a re-flashing of the rom problem.
Second, I do not have access, root or otherwise, to any of the system files on the phone.
Third, with the first two in mind this possible solution is of no help.
Fourth, Re-read my original post. I have given complete detailed information as to what I have access to and what I have done.
Can someone send me a download think for this phone i downloaded one but it won't flash it keeps failing
This device has been locked down by Tradphone and Samsung. It gives errors flashing even the correct stock firmware. It's a piece of garbage. NEVER buy anything from Tracphone. Garbage company. You'll never fix this issue. Only pushed updates will flash via software from sammy and tracphone that is built into the rom..
Curtis1973 said:
This device has been locked down by Tradphone and Samsung. It gives errors flashing even the correct stock firmware. It's a piece of garbage. NEVER buy anything from Tracphone. Garbage company. You'll never fix this issue. Only pushed updates will flash via software from sammy and tracphone that is built into the rom..
Click to expand...
Click to collapse
Not sure if that's correct? It depends on the firmware and odin version being used.
---------- Post added at 10:00 PM ---------- Previous post was at 09:58 PM ----------
Nate1k904 said:
Can someone send me a download think for this phone i downloaded one but it won't flash it keeps failing
Click to expand...
Click to collapse
Post more details on the error, screenshots, firmware and odin version used.
Need to know if works. Or if needing to settle for a different route.
The_WABBIT said:
Here is the issue. A friend of mine had gone a bought a Galaxy Sky SM-S320VL from TracPhone. And had been using the phone without any problems until a couple of weeks ago. Then he decided to do a Factory Reset. Instead of doing the software reset, from with in Settings, he went and did a HARD Reset without unlocking the google account. And guess what, he can't remember the account information for that phone. And came to me to reset the phone. (As I had to deal with this problem in the past with other people and their phones.)
I have downloaded the only stock rom I can find for this phone and flashed it with Odin3. But for some reason the flashing of the rom is never done. By this I mean, the phone downloads the rom as Odin sends it. Odin reports a Success with the flashing. But, when the phone reboots. The system has not been reset and FRP is still active.
I have flashed only the AP, and the phone reboots directly into setup and shows a message about an unauthorized Factory Reset.
I have flash all 4 files in the ROM set (BL, AP, CP, and CSC). and Odin states the flash was a success. The phone reboots, goes to recovery and states Starting System Update. Goes so far into the update, then stops and shows Erasing. After a short time of showing Erasing it reboots to setup. Where again the phone shows the message about authorized Factory Reset.
I have used Odin3 v3.9.0, v3.11.1, v3.11.2, v3.12.5. And I have updated to the latest USB drivers from Samsung.
So my question is this. Has anyone had come across this behavior before? And how can I get past this?
The phones particulars:
Name: Samsung Galaxy Sky
Model #: SM-S320VL(GP)
OS v: 6.0.1
Firmware #: S320VLUDU2APJ3
Model #, as reported by Downloader: SM-S320VL
Note: As a strange side effect of when I flash all 4 rom files. For some reason once the phone has failed the system update, erased and has reboot. I have complete access to the phones User data area from within my computer. But, I am unable to access the phone with adb.
Click to expand...
Click to collapse
J3 sm s320vl... tracfone root availability? Just bought phone hopefully got a good one to root? Or maybe someone knows who maybe be able to... please help
No updates? Interested, I have the same phone.
There is no solution for this phone. It will forever be a Trac-phone.
Yes, it nice to imagine what could had been. If there was a fix for the locked bootloader. Its encrypted, and is highly unlikely to be broken by anyone.
Do not flash the boot.image that some people have suggested
Although that method works on some devices such as the AT&T Samsung Galaxy S5. In this case flashing the boot.image from an unlocked device does nothing but places the phone into an even more precarious situation, that makes it unusable even as a Trac phone.
While its true that this very low budget phone could had been decent with a custom Rom ,
You will not be able to get it working.
I have one that belonged to my daughter a couple of years ago and I managed to get it boot into the system again.
Its only function is as a calculator, or preschool game, the cellular reception and Wifi connections are highly unstable and will not stay connected.
Now it serves as my nieces play toy. I would donate to some poor person at the Salvation Army it if it was useable.
By the way, for anyone reading this.
If you have an old phone that is useable. You could dramatically help a Homeless people, by gifting them with a phone especially, if it has some minutes on it.
This gift will help them schedule job interviews, doctors appointments , etc and you will feel good knowing that you helped someone in need.
I have done this before, and will be dropping off a Blu phone, and Kindle Tablet this week.
tsongming said:
There is no solution for this phone. It will forever be a Trac-phone..
Click to expand...
Click to collapse
It is possible to gain root on this device.
ashyx said:
It is possible to gain root on this device.
Click to expand...
Click to collapse
I have permissible SE Status but can not achieve root on this device. Also, I have not found that anyone has had success rooting this exact model.
To be clear my device is the 2016 TracFone Samsung Galaxy J3 Sky model : SM-S320VL
Build S320VUDU1APG2
Hardware Version S320 VL04
I have found reports of people with S320VLUDU2API3 stating that the were able to achieve root and then assumed that it must also be possible with S320VUDU1APG2.
I am usually the guy that can figure these things out, very often before others. But I have had no success gaining root on this device using published methods. Also, I have not seen one example of someone with this identical device who gained root.
You are apparently the Wizard of these Samsung phones, so if you know of a definite way to root it, please point me towards the solution. I would really appreciate it.
I would love to root this phone, get it working again, and gift it to lady who was beaten by her husband and she is now living in a homeless shelter with her two children. She could use a phone to help with her job search. She would appreciate it.
At the moment this phone can will not keep a signal and I can't attempt the build prop solution without root.
Thank you.
tsongming said:
I have permissible SE Status but can not achieve root on this device. Also, I have not found that anyone has had success rooting this exact model.
To be clear my device is the 2016 TracFone Samsung Galaxy J3 Sky model : SM-S320VL
Build S320VUDU1APG2
Hardware Version S320 VL04
I have found reports of people with S320VLUDU2API3 stating that the were able to achieve root and then assumed that it must also be possible with S320VUDU1APG2.
I am usually the guy that can figure these things out, very often before others. But I have had no success gaining root on this device using published methods. Also, I have not seen one example of someone with this identical device who gained root.
You are apparently the Wizard of these Samsung phones, so if you know of a definite way to root it, please point me towards the solution. I would really appreciate it.
I would love to root this phone, get it working again, and gift it to lady who was beaten by her husband and she is now living in a homeless shelter with her two children. She could use a phone to help with her job search. She would appreciate it.
At the moment this phone can will not keep a signal and I can't attempt the build prop solution without root.
Thank you.
Click to expand...
Click to collapse
See the thread below. Root was gained, albeit temporary. However I believe this is due to kernel panics which may be solved by a few build.prop edits. We had to do the same on the J327T1.
https://forum.xda-developers.com/galaxy-j3-2016/help/samsung-galaxy-j3-sm-s320vl-rooted-t3561762
Also if you firmware S320VUDU1APG2 then why not just update it to the firmware that has been reported to work?
I have found one these phones left on a table of a food truck area, screen was cracked - the device was only getting the android guy with triangle on it, I done some research and found the stock rom and flashed it with odin; as some have mentioned in comments above I also experienced wifi issue, so I thought I had installed incorrect rom - downloaded a different one this was a combination file that was the factory repair rom used for testing the device, but wifi worked - it wasn't a fully working telephone it didnt have the app store, well it really didnt have any apps, but I found I could copy over apk files from my PC to the device and then install them, so the phones not completely useless or junk --- it could be used for something. I myself am using that device as a security camera using IP CAM app works great. I was actually using this device for quiet some time as my roku tv remote, because my actual roku remote grown legs and walked off... i havent tried this, but I am sure you could install a launcher apk such as "apex launcher"
well i wasted enough of your time today...

I'm unable to root my S5 Lolipop 5.1.1. keep getting error msg w/my apps???

Quick, recap, I own a galaxy S5 Lolipop 5.1.1 SM-G900W8 build #LMY47X.G900W8VLU1COI4, previously rooted.
It all begin, when my phone been experiencing some battery draining issue. So I decide to do factory rest. But get this at that time my phone was fully rooted, w/Lolipop 5.1.1...
So I've read all the informations I could get online made sure to unroot the phone ( using CF-Auto Root ktlevl-sm G900W8.), with Odin, and reflash the phone with custom recory (G900W8VLU1COI4.tar.md5 file). I've made sure to get the exact one matching my phone carrier.
And after rooted the phone...All went well...Then 24-48 hours after the **** hit the fan.!!!!
They weere dialogue box keep poping up, from Touchwiz has closed, to Unified Daemond has closed just to name a few...
I decided to factory rest the phone again, reflash and rooted same problem occuring occuring.
So I decide not to root and the issue stop but now I'm unable to fully use my phone because it anin't root so certain function of my phone can't benefit such like using Airplane mode or Mobile data toggle using tasker. When my phone was fully rooted I was able to take full advantage of my Tasker profile. I've google the web and came acrros people who expericing the same issue as I did, but can't find a solution.
If there anyone who had that problem and manage to solve it, kindly share your story and solution with me....
Thank you in advance on getting back to me,

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