Hello all,
I have a V20 on T-Mo (still on version 10d) and it has an unlocked bootloader and is rooted. It is running the stock ROM.
I have met all the T-Mo requirements to unlock it (40 days, etc) and when I try to use their official unlock app, it stalls out with the circle spinning around the padlock stating "Connecting to Server" but it never goes further. T-Mo support was useless.
So, my question is, does an unlocked bootloader/rooted device prevent this app from working? If so, can I flash back a stock, unrooted ROM using TWRP and then unlock it and then restore my backup?
Thanks!
-Rob
Hey Rob, I had the same issue. Once you flash back to stock it will work and then you can sim unlock. I lost TWRP so I had to go through the process again to root. I used the LG backup app to back up and restored from that after root.
Related
Hello,
I tried several things to unlock my phone, unfortunately, unsuccessfuly.
I use the Sim Unlock code provided by Vodafone : no chance
I rooted the phone and tried Region Lock Away or the Sim Unlock Samsung app, no chance either. I think that the phone is rooted properly but everytime an app request root access, it times out.
I am running out of (good) idea. Any pointer would be very helpful!
Thanks
David
Are you trying all of these thing while running a stock ROM?
I had the same problem with t-mobile in America. It was because I was using a custom rom. I backed up my phone, installed a "stock rooted rom" and was then unable to unlock the sim. Then I used my backup to restore my phone back to the custom rom. Good luck.
I used Odin 3.04 then I install CWM recovery on it.
I tried to unlock the phone before rooting it but it didn't work which is why I try to root it, nothing works... What is a stock rom ? I only want to sim unlock it really, i dont need / want it rooted specifically
What is a stock rom
Stock as in standard firmware as supplied by Samsung .
This all assumes you have a custom rom installed.
You can return your phone to stock (maybe) but it's kind of a pain.
It seems easier to flash a stock rooted rom, which is similar enough to stock to fix your problem.
Google "stock rooted rom vodafone note 3" or maybe just N9005XXUGBOA5_N9005VFGGBOA2 seems to be what you are looking for {actually that appears to be the stock file that you can flash with odin and mostly re-stock your phone.... not sure if it will accomplish what you need}.
I've got a S4 AT&T running OK2 with root and it ran my AirVoice Wireless SIM perfectly fine for a month while I researched and got a new phone. I'd now like to use it as a backup phone with a FreedomPOP SIM but it's giving me grief about "SIM network unlock PIN". This is the carrier lock correct? I found a tutorial that has you go into the Service Mode and turn off NETWORK LOCK. This tutorial doesn't seem to work (missing the options) in OK2. Do I have to downflash to 4.2.2 in order to get these options? If so, how do I go about doing that? I put OK2 with root on this phone but that process took 2 days and with all the mixed info out there and different versions, it's confusing to say the least.
My other question is, I tried flashing TWRP (jflteatt) and I believe I ended up with the "software not authorized by AT&T" error. Doing some reading, it looks like this may be due to not using a loki'd TWRP?
Any pointers/tips would be much appreciated. All this Samsung stuff is way over my head despite having rooted, recoveried and rom'd maybe a dozen Android devices. I much prefer LG and Moto
natenkiki2004 said:
I've got a S4 AT&T running OK2 with root and it ran my AirVoice Wireless SIM perfectly fine for a month while I researched and got a new phone. I'd now like to use it as a backup phone with a FreedomPOP SIM but it's giving me grief about "SIM network unlock PIN". This is the carrier lock correct? I found a tutorial that has you go into the Service Mode and turn off NETWORK LOCK. This tutorial doesn't seem to work (missing the options) in OK2. Do I have to downflash to 4.2.2 in order to get these options? If so, how do I go about doing that? I put OK2 with root on this phone but that process took 2 days and with all the mixed info out there and different versions, it's confusing to say the least.
My other question is, I tried flashing TWRP (jflteatt) and I believe I ended up with the "software not authorized by AT&T" error. Doing some reading, it looks like this may be due to not using a loki'd TWRP?
Any pointers/tips would be much appreciated. All this Samsung stuff is way over my head despite having rooted, recoveried and rom'd maybe a dozen Android devices. I much prefer LG and Moto
Click to expand...
Click to collapse
Yeah you're carrier locked. I think you can only downgrade to NB1 from OK2, not sure you can carrier unlock on NB1 or not. As for installing TWRP you can't due to the locked bootloader. You can only use safe strap recovery and boot only custom touch wiz roms. Loki only works on the MDB and MDL bootloaders, once you've upgraded the bootloader past MDL, you can't go back.
If the AT&T phone is like the i337m and m919, you may be able to flash down to 4.4.2, flash a 4.2.2 modem, root, run regionlockaway, upgrade modem back to 4.4.2.
Thanks for the replies. I grabbed NB1 from here: https://forum.xda-developers.com/showthread.php?t=2616221
and flashed it via Odin. All went well but when it came time to follow various instructions I found online, they either yielded no unlock or the options weren't in the menu. I don't think the free unlock trick via the service menu works on 4.4.2/NB1.
I researched a bit more and feel very stupid with one of the results that came up... AT&T offers online unlocking of their devices and you don't even have to be one of their customers! I figured I could go to one of their retail stores but also figured they would deny me since I'm not a customer. I'll be jiggered though, here it is: https://www.att.com/deviceunlock/
Slapped my IEMI in with my e-mail and in less than an hour or so, I got my unlock code for free. AT&T said they would e-mail it but I checked back on the status page and found the code there. Hopefully this helps other people.
So, moving forward now, is OK2 the best I can do with a locked bootloader? I ran it for a while but I found that I burned through my data real quick because when I would leave my WiFi coverage and come back, it would reconnect but for some reason wouldn't actually use WiFi (data was still on, had the 4G icon) until I restarted the phone. Basically, every time I left and came back home, I had to restart my phone. Is this a known issue, did I botch something in the install process? I may make another thread for this.
*EDIT*
Running OK2 for a while, I no longer have the WiFi issues I had before. Doing some thinking, I can only attribute the issue to either incorrectly followed steps the first time around flashing OK2 or the use of the debloater script found in the OK2 downloads thread. I've been using Link2SD to remove system apps and so far haven't removed anything that has affected WiFi.
[H918] Successful root/fastboot unlock from 10J -> No roms are flashed successfully
Hi folks, wanted to share my current state of affairs with trying (and failing) to install a new rom on my LG V2O. Here's the order of events
Received brand new sealed-in-box LG V20 from T-Mobile from a third party seller that came in firmware 10J
Followed all directions to successfully perform dirtycow unlock
Installed TWRP (3.0.2-1)
Backed up, but mistakenly deleted the backup after trying to install Megarom in an attempt to do a clean flash
.zip flashed correctly, but hits boot loop upon reaching LG screen (even after waiting 20+ minutes on first boot). T-mobile screen never pops up
Can access TWRP still and ADB commands
Basically now, I've tried looking at as many H918 rom threads as I could but every single rom I try either: never completes flashing OR if it does complete flashing, the device never boots (either bootloop or stuck on the LG screen). I've never seen the device get past the LG screen for any reason. I am desperate for help on this matter as I have royally screwed up trying to provide a nice gift for my partner but was apparently way in over my head with trying to get a fresh rom on this thing.
Can anyone provide assistance as to how I can roll back to a stock rom? I'd be willing to give up root/recovery. All of this was spawned from wanting to be able to unlock the carrier but I have decided I'll just pay for the sim-unlock service if I can get this back to stock. Would be willing to provide some PayPal cash for someone who can help me out with this matter.
Flash to 10j kdz firmware located in the thread with all the firmwares. You`ll need lgup to flash it.
https://forum.xda-developers.com/v20/how-to/restore-v20-to-100-stock-bricked-devices-t3524903
https://forum.xda-developers.com/v20/how-to/t-mobile-lgv20-h91810j-kdz-t3540747
I went to switch to a different carrier, and was on cricket, and also tried tmobile both wich worked fine unlocked bootloader and rooted.
I then switched to sprint, and verizon and found out both carriers the phone would not work right. The data worked but the call and texting did not.
As a side note, I was informed by someone who was on sprint, and he said that you had to get on the network unrooted and locked bootloader, once registered you could then root and get the bootloader unlocked and be just fine.
So I then proceeded to unroot the phone ie: removing everything root, and keeping twrp with an unocked bootloader only, no sign of root. I took the phone back to the stores and tried again, and the phone still had the same issue.
After finally finding a way to finally after 6mo lock the bootloader again, and was at pure stock, locked bootloader and no root.
What this tells me is that some how verizon and sprint both some how some way detect an unlocked bootloader....how? I have no clue, I've never in my 5+ years of rooting multiple phones, never ever ever seen anything like this. The only reason I know this is what it was, is from common deduction and reasoning.........unroot = still doesn't work.....locked bl = works fine with not a single issue. Keep in mind this was all with base stock rom, not a custom rom.....everything was stock, accept for the root and un;ocked bootloader part. I rooted with magisk.
Since I had a very long time and issue with locking the bootloader, (about 6mo) after trying a ton of things, without resolve, I FINALLY got the bootloader locked.
If it's going to be anything like before trying to get it locked again to work on sprint and verzion, I really do not want to bother with unlocking it to begin with. It was an utter nightmare to get locked, no matter what I tried it just would not lock for whatever reason.
So given all that, my question is, how hard or easy is it now to unlock and lock the bootloader?
I have a T-Mobile OP6T and I converted it to the international version using the MSMSTool and then rooted, recovery, etc.
I decided to flash the fastboot files for the T-mobile variant because it appears its needed to unlock the SIM after 40 days. The T-Mobile Device Unlock app is what I am referring to.
So I flashed back to T-Mobile using the fastboot files but now I cant get the OTA to update regardless of root status.
Has anyone tried this method besides me?
Does anyone know where the OTA is downloaded? If so I could just grab it and try manually applying it.
Eitherway, feel free to give your inputs on this. I would like to have the T-Mobile firmware fully updated on the locked variant.