Hello, I used to own a GS3 and had it rooted and everything just fine, but I sold it when I broke the screen. I recently purchased a used one off Ebay and want to get back root and custom ROM. The seller had the firmware updated to 4.4.2 stock and of course it is bloated to hell. I managed to get the root installed, however I flashed a new rom and modem and now have no network connection. I have tried modems LK3, MJ2, and MJB and none have worked. Also, somewhere down the line I managed to break the wifi, as when I try to turn on wifi it instantly switches off.
I remember it being very easy to root back when the device first came out, I was on a Galaxy Nexus previously and everything. Another thing to note, once I got the root installed I made a backup in cwm and even restoring this backup I have broken modem and wifi. How ****ed is my phone?
EDIT: I managed to find the elusive NE4 modem that was not in the "all modems" thread. This fixed my issue. Feel free to close thread mods
Closed at OP request.
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I'll try to boil this down as much as possible... Bought a used M919 on Craigslist, it was an original MDL 4.2.2 build. I rooted, loaded Fenny's 4.4.2 ROM, had it all going great, then it got blacklisted for unpaid device balance...
Just bought a refurb direct from T-Mo, of course it's NB4 4.4.2. I did TowelRoot, installed current TWRP, restored Data & System, got stuck at the T-Mobile animation screen (so long the phone was getting hot). Flashed back to Fenny's fixed original 4.4.2 ROM, it booted fine, had Wi-Fi & LTE signal, did TowelRoot, installed TWRP again, restored ONLY Data...
Phone boots & runs fine, makes/receives calls & SMS/MMS but I have no Wi-Fi (won't successfully turn on). Also, I'm constantly getting a "Security Notice" saying "Unauthorized actions have been detected. Restart your phone to undo any unauthorized changes."
What gives? I've tried re-flashing the separate modem files, but it doesn't help.
Ideas please?
OldMage said:
I'll try to boil this down as much as possible... Bought a used M919 on Craigslist, it was an original MDL 4.2.2 build. I rooted, loaded Fenny's 4.4.2 ROM, had it all going great, then it got blacklisted for unpaid device balance...
Just bought a refurb direct from T-Mo, of course it's NB4 4.4.2. I did TowelRoot, installed current TWRP, restored Data & System, got stuck at the T-Mobile animation screen (so long the phone was getting hot). Flashed back to Fenny's fixed original 4.4.2 ROM, it booted fine, had Wi-Fi & LTE signal, did TowelRoot, installed TWRP again, restored ONLY Data...
Phone boots & runs fine, makes/receives calls & SMS/MMS but I have no Wi-Fi (won't successfully turn on). Also, I'm constantly getting a "Security Notice" saying "Unauthorized actions have been detected. Restart your phone to undo any unauthorized changes."
What gives? I've tried re-flashing the separate modem files, but it doesn't help.
Ideas please?
Click to expand...
Click to collapse
Did you flash the WiFi fix in Fenny's thread? Have you tried a different kernel?
Must've missed the Wi-Fi fix somehow. Thought there were only problems when the MDL bootloader was maintained.
Yes, I'm running Fenny's kernel, 1.2 or 1.3.
Sent from my S4 using XDA Free
BINGO! Wow, makes me feel like a total noob. Haven't seen the Security notice yet either.
Sent from my S4 using XDA Free
I take that back, there's the security notice... :banghead:
Sent from my S4 using XDA Free
OldMage said:
I take that back, there's the security notice... :banghead:
Sent from my S4 using XDA Free
Click to expand...
Click to collapse
I did a search for "Unauthorized actions have been detected" and it pulled up a couple pages for other Samsung devices. You could try doing what they all say to do; I would assume that because I've read the same solution in both the S5 forum and the Note II forum it should work for all Samsung devices... anyway, open up SuperSU and somewhere in the app there should be an option to disable KNOX. That should get rid of that warning.
lordcheeto03 said:
I did a search for "Unauthorized actions have been detected" and it pulled up a couple pages for other Samsung devices. You could try doing what they all say to do; I would assume that because I've read the same solution in both the S5 forum and the Note II forum it should work for all Samsung devices... anyway, open up SuperSU and somewhere in the app there should be an option to disable KNOX. That should get rid of that warning.
Click to expand...
Click to collapse
I must be doing something wrong w/ my searches... Thanks for the slap in the right direction :highfive:
We'll see if it's attitude is improved... :fingers-crossed:
My S3 never gave me this much trouble... LOL! Neither did my 1st S4.
I apologize if i am not as clear in this post as I need to be. My dad tried to root his note 2 sgh i371 using odin but said that once he did this, he was unable to access the internet outside of connecting to wifi, he could not get any cellular data. Because of this issue, he tried to then un-root his phone by flashing 4.1.2 stock rom. Unfortunately, the issue of not being able to get cellular data persists. In his frustration, my dad bought a note 3 and gave his note 2 to me saying that if I could fix it I could keep it. This is my first android and I would like to make it my primary phone if possible. what I would like to simply to reset the phone to factory default settings by flashing the latest stock rom for the phone. I have Odin, I was hoping that someone could tell me where I could get the latest stock rom and, if they believed that flashing it would fix the cellular data issue. I do not believe my dad made a backup at all. Thank you in advance.
I've got a lot of problems actually. I have a Virgin Mobile Galaxy S3 (SPH-L710) with 4.4.2 that I rooted yesterday, but I didn't back up the stock ROM before trying to flash Cyanogenmod. I lost data, eventually I lost wifi, and then I think I bricked it trying to flash various things to fix it. I then tried to flash stock firmware but ended up with a phone that thinks it's on the Sprint network (still no mobile data). I haven't had any luck trying to find stock ROMs and kernels for Virgin Mobile (assuming that's what I need to fix it?). I'd like to be able to go back to the out-of-the-box unrooted ROM until I can do more research.
I'm completely new to the entire process and clearly got in over my head. I hope you guys can point me in the right direction.
Sir,
Please wait until mods will move this thread to the device specific forum.
For reply or more questions please register an account on XDA forums.
Stand by
Good luck
Thank you
So I think my problem is resolved. I used Kies to update the firmware, which seemed to successfully return the phone to unrooted stock. I reactivated my network via the VM website. I can send and receive calls and texts. The only thing is that I don't see the VM logo screen at startup. Should I be worried?
If everything is working as it should then no worries about a missing splash screen... Sounds like you're good to go
I've run into a bit of a pickle with my root attempt on one of my LG G3s. The first went without a hitch while the 2nd didn't go so well. In order to flash CM12, I followed the LG G3 stock flash guide from hyleton to downgrade from Lollipop to 4.4.2. I then flashed CM12 with TWRP and hit a snag where the mobile data connection would try to establish, and the phone would black screen requiring me to pull the battery. The only way to get passed the CM12 setup would be to boot without the TMO SIM card.
Because I considered this a failed port, I flashed back to stock 4.4.2 but can't connect to the TMO mobile data network, but I am successfully able to get passed initial setup with the SIM Card in. IMEI and mobile number are still registered to the device, so at this point I'm assuming the issue is with a bad modem flash that occurred when I went back to stock 4.4.2. When I check the baseband version, the number/letter combo is quite large and doesn't seem to match with your typical Baseband versions, hence why I think I have a corrupt modem.
I can't find any modem software packages out there for the US TMO LG G3 variant, so was hoping someone could point me in the right direction or otherwise help provide some guidance on how to get my data connection back.
Hey,
I've got the exact same problem. Did you manage to repair it?
Thanks.
C.
You could try asking for a modem package for your variant here on the forums, otherwise you could try a custom ROM and wiping everything even the modem before flashing, most ROMs come with a modem built in.
Really not sure what to do here, and I'm starting to get very frustrated, especially since I know exactly what the issue is and I can't find a solution... So here is everything I did up to this point in detail. I wanted to go back to stock for a while, but I remembered not being able to update at all last time I tried this. I used the LG Flash Tool to go back to 10b (I think? Earliest firmware out there) It started when my phone would tell me that "My Device was not registered yet" in the System Update settings. I did some Googling and found out it was because my IMEI number was blanked out (All zeroes), and I found a tutorial that was for the G2, but worked for the G3, to repair the IMEI. I first rooted with the LG One Click Root Tool when I got to Lollipop, used the IMEI that was under my battery, converted it to HEX and injected it into my phone with RF_NV_Manager, which was installed with QPST by Quallcom. After doing this, my IMEI was fixed, it matched the same IMEI that was under the battery on my phone, though I never texted or called anyone from there so I never noticed anything strange. I was able to update to the latest official Lollipop firmware, but then my phone started telling me I left the home network. Thinking it was just a glitch or something, because I had roaming issues before on stock, I switched to a custom ROM since that fixed it last time before I even knew that IMEI's existed. That didn't fix it at all. I was on LiquidSmooth Alpha and my phone will still go to roaming, and the way I would fix it was to piss around with the mobile network settings and change them back, then I would get 4G LTE for a few minutes, but I would NEVER be able to call or text. Since it was a discontinued ROM, I thought I just got unlucky, so I went to an official Nightly for CM12.1. At the moment I have LTE but no calling or texting... Then I found out that these issues tend to occur after IMEI fixes, so what do I do? Can anyone point me to a proper tutorial on how to fix this? After looking, I ended up downloading and installing something called EFS Professional 2.1 but now I'm even more confused...
EDIT: I tried going into ADB and inputting "adb reboot nvrestore" but that didn't fix it... The site said it's based on a backup that was automatically created when the phone was first built but that was on a completely different forum for a different phone. Going to try to flash back to stock KitKat.
EDIT: Alrighty! I'm getting somewhere! I flashed back to 10B with the Upgrade DL option, before I used Board DL. I can call and text now, as well as LTE, and OTA updates work, but I'm just going to root and go straight to the Nightly CM12.1 that I wanted to go to in the first place.
EDIT3: That seems to have done the trick. For people who have had issues with roaming after IMEI repairs, try flashing your stock TOT with the Upgrade DL option, then root and install your preferred ROM.