Network locked V35 - LG V35 Questions & Answers

Hi. I recently bought the LG V35 supposedly unlocked; however, I am unable to activate on T-Mobile.
Backstory: After purchasing the V35, I followed the instructions on cross flashing to get rid of the AT&T bloat here https://forum.xda-developers.com/lg-v35/development/bootloader-unlock-root-instruction-t4052145. The firmware I downloaded was from https://lg-firmwares.com/lg-lmv350ulm-firmwares/; however, the AIO and the USA versions are both the same. I flashed one of the firmware and all is fine, except now I get "Network locked" after I insert my SIM card from T-Mobile. I went AT&T's site https://www.att.com/deviceunlock/#/https://www.att.com/deviceunlock/#/ for an unlock code; however, I do not get a prompt on my phone to enter the code. This is after I flashed the phone.
My questions are, which version of the firmware was I to use so my phone is network unlocked AIO or USA? If they are both the same, how do I get the phone to be network unlocked so I can activate the V35 to T-Mobile.
TIA

boricua65 said:
Hi. I recently bought the LG V35 supposedly unlocked; however, I am unable to activate on T-Mobile.
Backstory: After purchasing the V35, I followed the instructions on cross flashing to get rid of the AT&T bloat here https://forum.xda-developers.com/lg-v35/development/bootloader-unlock-root-instruction-t4052145. The firmware I downloaded was from https://lg-firmwares.com/lg-lmv350ulm-firmwares/; however, the AIO and the USA versions are both the same. I flashed one of the firmware and all is fine, except now I get "Network locked" after I insert my SIM card from T-Mobile. I went AT&T's site https://www.att.com/deviceunlock/#/[url]https://www.att.com/deviceunlock/#/[/url] for an unlock code; however, I do not get a prompt on my phone to enter the code. This is after I flashed the phone.
My questions are, which version of the firmware was I to use so my phone is network unlocked AIO or USA? If they are both the same, how do I get the phone to be network unlocked so I can activate the V35 to T-Mobile.
TIA
Click to expand...
Click to collapse
You need to be on AT&T firmware to use the carrier unlock code. If you cross flash to different firmware before carrier unlocking you are out of luck. EDIT: see posts below where new information has emerged.
Obviously your V35 was not carrier unlocked/SIM card unlocked, in spite of what the seller said?
Unlike with the LG V30 series, flashing carrier unlocked firmware does NOT carrier unlock AT&T LG V35. You need to use carrier unlock code prior to cross flashing different variant firmware.
Perhaps you can contact someone with Octoplus box and get back to AT&T firmware to use carrier unlock code. AT&T doesn't publicly release KDZ for their firmware, but some dealers with Medusa and Octoplus boxes still somehow have it.

boricua65 said:
Hi. I recently bought the LG V35 supposedly unlocked; however, I am unable to activate on T-Mobile.
Backstory: After purchasing the V35, I followed the instructions on cross flashing to get rid of the AT&T bloat here https://forum.xda-developers.com/lg-v35/development/bootloader-unlock-root-instruction-t4052145. The firmware I downloaded was from https://lg-firmwares.com/lg-lmv350ulm-firmwares/; however, the AIO and the USA versions are both the same. I flashed one of the firmware and all is fine, except now I get "Network locked" after I insert my SIM card from T-Mobile. I went AT&T's site https://www.att.com/deviceunlock/#/https://www.att.com/deviceunlock/#/ for an unlock code; however, I do not get a prompt on my phone to enter the code. This is after I flashed the phone.
My questions are, which version of the firmware was I to use so my phone is network unlocked AIO or USA? If they are both the same, how do I get the phone to be network unlocked so I can activate the V35 to T-Mobile.
TIA
Click to expand...
Click to collapse
My understanding is that if you flash the firmware for south america, when you boot it with your sim card, a pop up will appear asking for an unlock code. Haven't done it myself but it sounds like in your situation it wouldn't hurt to try...
Of course, if u don't get a pop up, try the code that supposedly brings up pop up to enter code.
follow this link for the MIA version that should work.
cheers, let us know if you try it the results.

Thread Cleaned and it will end here regarding this back and forth, take care.

Hi OP, use LGUP to flash Mexican region kdz, insert your T-Mobile sim and unlock window will pop-up upon reboot and you can use the unlock code to unlock your phone. Good luck.

Android# said:
Hi OP, use LGUP to flash Mexican region kdz, insert your T-Mobile sim and unlock window will pop-up upon reboot and you can use the unlock code to unlock your phone. Good luck.
Click to expand...
Click to collapse
Is this guaranteed to work? I really want to use this phone.

boricua65 said:
Is this guaranteed to work? I really want to use this phone.
Click to expand...
Click to collapse
Guaranteed? Well, as stated by those mentioning it here, I don't think we've actually done it, only repeating that others say it will work. So again, guaranteed? I couldn't guarantee it, but it seems unlikely that people would say it does work, and be lying about it?
Here's a GDrive link to the kdz you'd want to flash to try it. It's the latest Oreo for the south american region. Aside from using LGUP to flash it, you'd need an unlock code.
The md5 sum from this LG Page should match, to verify legitimacy.
Let us know if it works.

AsItLies said:
Guaranteed? Well, as stated by those mentioning it here, I don't think we've actually done it, only repeating that others say it will work. So again, guaranteed? I couldn't guarantee it, but it seems unlikely that people would say it does work, and be lying about it?
Here's a GDrive link to the kdz you'd want to flash to try it. It's the latest Oreo for the south american region. Aside from using LGUP to flash it, you'd need an unlock code.
The md5 sum from this LG Page should match, to verify legitimacy.
Let us know if it works.
Click to expand...
Click to collapse
So I just flashed my phone from the link you provided and no dice. I reflashed, factory reset, insert the SIM card after completing set up, insert SIM card after factory reset the second time, etc. with no luck. I am not getting a pop to ask for the unlock code.
EDIT to add: So I found a set of instructions when I don't get a pop up asking for the network unlock code (below)
Second option (device doesn't ask for an unlock code with an unaccepted SIM)
1. Start the device with an accepted simcard (example LG V35 ThinQ was bought in Orange you need to insert an Orange card)
2. Go to the dial screen and press “2945#*model number#” (the same way you enter a phone number)
Example: the device is a P999 you need to enter “2945#*999#” or for KU990 you need to enter “2945#*990#” etc…
So far I am getting closer. Now I get a message saying SIM not provisioned. I will continue to research and troubleshoot. If I continue to run into a another roadblock, I will post here. Thank you all.

Okay, now I fracked up something else. I went from V350EM10h_OPEN_SCA_OP_118.kdz to V350ULM20f_00_NAO_US_

Okay now I am stuck at the LG Life's Good splash screen. I went back to LGUP and did not see it was defaulted to Refurbish going from V350EM10h_00_OPEN_SCA_OP_0118.kdz to V350ULM20f_00_NAO_US_OP_0218.kdz. I went back and reran LGUP with Upgrade chosen; however, the phone is still stuck at the splash screen. Help!

EDITED

boricua65 said:
Okay now I am stuck at the LG Life's Good splash screen. I went back to LGUP and did not see it was defaulted to Refurbish going from V350EM10h_00_OPEN_SCA_OP_0118.kdz to V350ULM20f_00_NAO_US_OP_0218.kdz. I went back and reran LGUP with Upgrade chosen; however, the phone is still stuck at the splash screen. Help!
Click to expand...
Click to collapse
So you've tired to reflash ulm and have an issue there. But did you get it sim unlocked?
here's also some instructions I found re unlocking sim if you don't get a pop-up
UNLOCK LG UNLOCK INSTRUCTIONS
ONCE YOU HAVE RECEIVED THE UNLOCK CODE EMAIL, PLEASE FOLLOW THE FOLLOWING INSTRUCTIONS CAREFULLY.
1) Insert a SIM card that is not from the original carrier in your phone and power on the phone.
2) Once finished loading your phone will ask you for the "SIM Network Unlock PIN".
If your phone does not prompt for a code, please dial 2945#* [model number] # to bring up the prompt
For example LG G4 D851: Dial 2945#*851#
3) Enter the LG Network Unlock Code.
If your phone asks for the "SIM network unlock PIN", use the NCK code.
If your phone asks for the "SIM Service Provider unlock PIN", use the SPCK code.
---------------------
But now you have an additional issue, you say you used 'refurbish' mode for both flashings? To the S.A. one and then back to the ulm one?
To my understanding, that should have worked. But whatever the case may have been, you're stuck now, from what I understand. If that's the case, all I can suggest is trying 'DL' mode for the ULM and select all partitions, OR maybe try 'Upgrade' (if you did refurbish" or refurbish if you did the other.
Sorry to hear you're having trouble, I guess, if you followed the procedure and it didn't work, then this is an indication there IS NOT a way to unlock the sim if you failed to do it on ATT OS.
Let us know if you're able to make any progress / got it sim unlocked or not. We'll have to start relaying the results so others don't have the same issue.

AsItLies said:
So you've tired to reflash ulm and have an issue there. But did you get it sim unlocked?
here's also some instructions I found re unlocking sim if you don't get a pop-up
UNLOCK LG UNLOCK INSTRUCTIONS
ONCE YOU HAVE RECEIVED THE UNLOCK CODE EMAIL, PLEASE FOLLOW THE FOLLOWING INSTRUCTIONS CAREFULLY.
1) Insert a SIM card that is not from the original carrier in your phone and power on the phone.
2) Once finished loading your phone will ask you for the "SIM Network Unlock PIN".
If your phone does not prompt for a code, please dial 2945#* [model number] # to bring up the prompt
For example LG G4 D851: Dial 2945#*851#
3) Enter the LG Network Unlock Code.
If your phone asks for the "SIM network unlock PIN", use the NCK code.
If your phone asks for the "SIM Service Provider unlock PIN", use the SPCK code.
---------------------
But now you have an additional issue, you say you used 'refurbish' mode for both flashings? To the S.A. one and then back to the ulm one?
To my understanding, that should have worked. But whatever the case may have been, you're stuck now, from what I understand. If that's the case, all I can suggest is trying 'DL' mode for the ULM and select all partitions, OR maybe try 'Upgrade' (if you did refurbish" or refurbish if you did the other.
Sorry to hear you're having trouble, I guess, if you followed the procedure and it didn't work, then this is an indication there IS NOT a way to unlock the sim if you failed to do it on ATT OS.
Let us know if you're able to make any progress / got it sim unlocked or not. We'll have to start relaying the results so others don't have the same issue.
Click to expand...
Click to collapse
Actually, I was able to get the phone to be network unlocked. I mistakenly went from S.A. version to NAO as Refurbished instead of Upgrade on the LGUP.

boricua65 said:
Actually, I was able to get the phone to be network unlocked. I mistakenly went from S.A. version to NAO as Refurbished instead of Upgrade on the LGUP.
Click to expand...
Click to collapse
So you're all set now? sim unlocked and back on ULM? If that's so, that's good news.

AsItLies said:
So you're all set now? sim unlocked and back on ULM? If that's so, that's good news.
Click to expand...
Click to collapse
Only the phone is network unlocked. It's still stuck at the LG logo screen and does not boot up.

boricua65 said:
Only the phone is network unlocked. It's still stuck at the LG logo screen and does not boot up.
Click to expand...
Click to collapse
Well that's not good. I can only suggest try doing a partition D/L? I don't know if that would help or not, but not sure it could be worse than it is now? Certainly don't try the other options like chip erase etc. Those are not for a situation like this, they will certainly make things worse!

boricua65 said:
Hi. I recently bought the LG V35 supposedly unlocked; however, I am unable to activate on T-Mobile.
Backstory: After purchasing the V35, I followed the instructions on cross flashing to get rid of the AT&T bloat here https://forum.xda-developers.com/lg-v35/development/bootloader-unlock-root-instruction-t4052145. The firmware I downloaded was from https://lg-firmwares.com/lg-lmv350ulm-firmwares/; however, the AIO and the USA versions are both the same. I flashed one of the firmware and all is fine, except now I get "Network locked" after I insert my SIM card from T-Mobile. I went AT&T's site https://www.att.com/deviceunlock/#/https://www.att.com/deviceunlock/#/ for an unlock code; however, I do not get a prompt on my phone to enter the code. This is after I flashed the phone.
My questions are, which version of the firmware was I to use so my phone is network unlocked AIO or USA? If they are both the same, how do I get the phone to be network unlocked so I can activate the V35 to T-Mobile.
TIA
Click to expand...
Click to collapse
Sorry to tell you this but you can't network unlock after flashing. You should have researched that if you're modifying the phone

Vuzeultra said:
Sorry to tell you this but you can't network unlock after flashing. You should have researched that if you're modifying the phone
Click to expand...
Click to collapse
You did not ready the whole thread. I was able to network unlock my device after using a South American firmware. In my haste, I used LGUP and flashed the NAO firmware as a Refurbish instead as Upgrade.

AsItLies said:
Well that's not good. I can only suggest try doing a partition D/L? I don't know if that would help or not, but not sure it could be worse than it is now? Certainly don't try the other options like chip erase etc. Those are not for a situation like this, they will certainly make things worse!
Click to expand...
Click to collapse
With much trepidation, I did the Partition D/L and it work!!! :good::good::good: I got my phone back.

boricua65 said:
With much trepidation, I did the Partition D/L and it work!!! :good::good::good: I got my phone back.
Click to expand...
Click to collapse
Awesome, good job.

Related

Samsung Focus Carrier/Sim Unlock Question

I have an 1.3 rev Samsung Focus. It was an unlocked model I got from outside. I was in the US at the time of Mango update and updated my phone with Mango from AT&T. Now I have moved out of the US and want to unlock it. AT&T doesn't have the unlock code because I didnt purchase it from them. Any Ideas on what I can do? Will a custom ROM help me with Unlock? When I check lock status, it is SIM Lock is Disabled, only Network lock is enabled.
I'm not sure what you meant by "It was an unlocked model" in the context of "out of the US and want to unlock it". Was it unlocked or locked? Anyway:
Read the wiki, (carrier) locks are in NVRAM, no relation to flashing whatsoever, so any custom ROM won't SIM unlock your phone.
Have you tried ebay? Unlock is cheap as $1 and it doesn't hurt to try (unlock via IMEI - I unlocked AT&T and Rogers Focuses). If that fails, I recommend fastgsm, I've unlocked my own AT&T Focus with them, via USB (no affiliation).
EnderPsp said:
I'm not sure what you meant by "It was an unlocked model" in the context of "out of the US and want to unlock it". Was it unlocked or locked? Anyway:
Read the wiki, (carrier) locks are in NVRAM, no relation to flashing whatsoever, so any custom ROM won't SIM unlock your phone.
Have you tried ebay? Unlock is cheap as $1 and it doesn't hurt to try (unlock via IMEI - I unlocked AT&T and Rogers Focuses). If that fails, I recommend, I've unlocked my own AT&T Focus with them, via USB (no affiliation).
Click to expand...
Click to collapse
It was carrier unlocked, as in I could place any sim in the phone and it would work. After I updated it on my Zune with Mango, it was loaded with AT&T's version and hence locked to AT&T. Now AT&T doesn't have the record of the IMEI in their database and aren't able to provide me with an unlock code. They were able to provide the unlock code for my other windows phone that I purchased from AT&T. Thereby lies my predicament. Let me try the ebay version, if not I hope FastGSM works. Thanks.
I was not able to get the unlock code from ebay. But FastGSM seemed to work wonders. I used their USB unlocking tool and it worked just fine. Thanks for the tip.

US Cellular XT1768 Moto E4 - Bootloader is Unlockable, and other info

Edit: My original post is contained below. I have edited since I now own the US Cellular variant, and want to share some information about it, and to help clarify some of the rooting process. I ran into some snags that may be obvious to the pros, but for the noobs and novices, a little more detail can be helpful. Also, this information should be useful for either USC or Retail variants.
First, the USC Moto E4 appears to be very much the same as the Retail Unlocked E4 being sold for $130. It has the same SKU of XT1768, can be bootloader unlocked, rooted, and appears to work with most carriers out of the box. I picked up my USC variant for $50 on eBay, and, as of this post, USC has them for $20 plus $35 for 1 month of service. Quite a deal if you can get one.
My thoughts/experiences are:
1. The USC Moto E4 (XT1768) appears to be fully unlocked*.
A. Out of the box it worked with my Tracfone AT&T sim for calls, text, and data WITHOUT having to configure anything.
B. It passed IMEI checks for Page Plus , Verizon, and Tracfone Verizon.
C. It passed IMEI checks for Ting GSM.
D. It, however failed for Tello, which is Sprint only.
EDIT - Thanks to @shogunreaper. He says the phone is compatible with Sprint & Tello once you ask Sprint to add the imei to their list. See here.
* Conclusion: The US Cellular E4 is almost fully unlocked. The retail version says it’s compatible with Sprint, but the US Cellular does not appear to be. It seems that it would/should work for all the other carriers. There is speculation that Moto may have not yet released IMEI numbers to Sprint yet, thus the reason the IMEI is failing for Tello/Sprint. Apparently this was the case for previous unlocked Moto phones. Not a problem for me as I will likely never use Sprint.YMMV.
2. BOOTLOADER UNLOCKING
I followed these instructions.
Unlocking the bootloader will cause the bootscreen to display "Bad Key" when you turn on the phone. THIS IS NORMAL. It will boot normally and your phone will work fine. Currently looking for a method to replace the bootscreen so "Bad Key" isn't displayed.
3. Flash the US Retail Stock Firmware
I did this to see what would happen, if anything, and to de-brand the phone as much as possible. To be fair the USC E4 only comes with 4 bloat apps and a modified Boot Animation with the US Cellular logo. The Retail Stock firmware removes all that. THIS IS OPTIONAL. To flash the retail firmware:
A. Download RSD Lite. This is similar to Odin, for those that have/had Samsung phones.
B. Downloaded firmware. I used the “Retail” version.
C. Unzip firmware to separate folder, install RSD Lite, & put phone into fastboot mode, & connect to PC. In RSD Lite, search for folder with firmware and select the “Flash” file. Process should take about 10-20 minutes.
4. Installed TWRP
A. Used the TWRP image from @squid2. I permanently flashed it with twrp-perry-3.1.1-r2.img
B. It wasn’t obvious to me, but the TWRP image should be placed on your PC, in the same folder you run ADB from, meaning put the TWRP img to be flashed in "platform-tools" for ADB. I originally placed the TWRP image on the phone’s SD card and it didn’t work. Don’t be dumb like me!
C. When you enter the command fastboot flash recovery twrp.img, make sure the twrp.img part matches the file name you downloaded, such as fastboot flash recovery twrp-perry-3.1.1-r2.img or fastboot flash recovery twrp-perry-3.1.1-r3.img.
D. Flashing TWRP to your phone will cause the bootscreen to display "N/A". THIS IS NORMAL. Currently looking for a method to replace the bootscreen so "N/A" is no longer displayed.
5. Root
Followed @KyleBryant guide (bottom of Post #1).
A. Download pph’s su zip.
B. Download no-verity-opt-encrypt.zip.
C. Flash both Superuser & No-Verity in TWRP.
D. Reboot the phone and INSTALL phh’s SUPERUSSER FROM PLAY STORE.
@KyleBryant says to format data in TWRP, reboot to TWRP, then flash the zips. I wound up doing this because after flashing the zips, Root Checker said I didn’t have root…but I think that’s because I didn’t install the SuperUser apk. DUH! Also, formatting data wipes your phone clean. Wasn’t a problem for me as I was doing this on a new phone. So…decide if you want to format data or not. For a new phone it’s not a big deal. If you’ve been using the phone for a while and have all your data, etc…, backup what you need first before formatting data.
6. Remove N/A on boot image
Thanks to @mikaleee, we now have a template to replace the logo.bin. Guide is here.
7. Disable/Remove Increasing ringtone. I posted the procedure here.
Hopefully this helps.
ORIGINAL POST
On another forum, it is mentioned that US Cellular also has the E4 for $20, and reported to be SKU XT1768. Comparing the specs on US Cellular (features tab) to GSM Arena, it appears to have the same bands, specs, etc... However, it has US Cellular bloat. The one user with the US Cellular E4 confirms that his phone works with AT&T WITHOUT sim unlocking. Unfortunately, nobody can confirm if the US Cellular E4 can be bootloader unlocked. I contacted an eBay seller that has several for a really good price, but he can not confirm about the boootloader either. So...does anyone have the US Cellular Moto E4? And does it qualify for bootloader unlocking?
I went so far as to order one from US Cellular, but was rejected because my mailing address is not in their service area.
Thanks,
mn1968 said:
On another forum, it is mentioned that US Cellular also has the E4 for $20, and reported to be SKU XT1768. Comparing the specs on US Cellular (features tab) to GSM Arena, it appears to have the same bands, specs, etc... However, it has US Cellular bloat. The one user with the US Cellular E4 confirms that his phone works with AT&T WITHOUT sim unlocking. Unfortunately, nobody can confirm if the US Cellular E4 can be bootloader unlocked. I contacted an eBay seller that has several for a really good price, but he can not confirm about the boootloader either. So...does anyone have the US Cellular Moto E4? And does it qualify for bootloader unlocking?
I went so far as to order one from US Cellular, but was rejected because my mailing address is not in their service area.
Thanks,
Click to expand...
Click to collapse
I don't have a US Cellular E4, but a couple years ago I was messing around with E2s, (Moto e 2015). Started with a Sprint version, which was bootloader unlockable but not SIM unlockable. Switched to USC version, which was also bootloader unlockable, and also is running on AT&T. There was a little trickery required to get it to see the AT&T SIM iirc, but it's been a while since I've messed what it / used it as a phone. Still sees regular use as a media player.
My guess is the USC one will be unlockable. I looked on USC site, can get it here, but it appears I have to sign up for a month of prepaid service too for another $35. If I can find one for $20 with no commitment I'll grab it and test.
If it is an XT1768 and the bootloader is unlockable, you can flash the retail version firmware which supports AT&T out of the box.
I have a US Cellular version that worked with no tweaks using a GSM BYOP TracFone SIM. Activated immediately.
I'll try and unlock the bootloader tonight and let you know.
yes it is I had one a few weeks ago and got the code from Motorola if you go to settings>about phone>tap build number 7 times then go to developers settings then you sill see allow oem unlock
allc0re said:
I have a US Cellular version that worked with no tweaks using a GSM BYOP TracFone SIM. Activated immediately.
I'll try and unlock the bootloader tonight and let you know.
Click to expand...
Click to collapse
That would be awesome. I ordered one from eBay for $50. Figured it was cheap enough to take a gamble on. I should get it tomorrow.
mattvail692 said:
yes it is I had one a few weeks ago and got the code from Motorola if you go to settings>about phone>tap build number 7 times then go to developers settings then you sill see allow oem unlock
Click to expand...
Click to collapse
Sweet! Did you follow through and root as well?
I haven't rooted yet it seems like things are still in the early stages but will once things start looking more built together this is still a new device so things are going to be a little rough but I will root eventually
I just unlocked the bootloader. It's a go!
(bootloader) Bootloader is unlocked! Rebooting phone
OKAY [ 0.697s]
finished. total time: 0.699s
allc0re said:
I have a US Cellular version that worked with no tweaks using a GSM BYOP TracFone SIM. Activated immediately.
I'll try and unlock the bootloader tonight and let you know.
Click to expand...
Click to collapse
Do you want to say that it's factory unlocked?
Could you try with another GSM SIM card and confirm?
Thanks!
Deleted. Was just a rehash of 1st post.
The only reason I said to format data is to wipe encryption so you can mount the system. Nice guide too, thanks for the mentions.
Sent from my Moto E (4) using XDA Labs
Nice tutorial. Thanks
mn1968 said:
Deleted. Was just a rehash of 1st post.
Click to expand...
Click to collapse
Can you explain the N/A on point 6? "Remove N/A on boot image."
Metconnect2000 said:
Can you explain the N/A on point 6? "Remove N/A on boot image."
Click to expand...
Click to collapse
It's an attempt to remove/hide the N/A that is displayed when bootloader is unlocked/TWRP is installed. If it works, you'll know.
EDIT - It did not work.
mn1968 said:
It's an attempt to remove/hide the N/A that is displayed when bootloader is unlocked/TWRP is installed. If it works, you'll know.
EDIT - It did not work.
Click to expand...
Click to collapse
Sorry to hear that. But this would only possible an issue if you want to turn the device in for warranty purpose. Am I missing something? Also over at the Slickdeals, there are so many people debating on the band 12 for this phone. Do your carrier support that and if so can u test? Thanks
Metconnect2000 said:
Sorry to hear that. But this would only possible an issue if you want to turn the device in for warranty purpose. Am I missing something? Also over at the Slickdeals, there are so many people debating on the band 12 for this phone. Do your carrier support that and if so can u test? Thanks
Click to expand...
Click to collapse
The N/A on the boot screen is a cosmetic thing. Once you unlock the bootloader through Motorola, you agree that you are forfeiting your warranty.
As far as band 12, that's a T-Mobile thing. I use AT&T, so I can not test.
How can I flash retail rom? I have a sprint version xt1766 and tried to flash retail and other roms many times, and every time it fails to flash bootloader and gpt.bin, boot.img. I really would like to have a rom without all sprint bloatware....Do you think sprint version is flashable with retail rom? what am I missing? Many thanks!
@fountain1
1. Is it bootloader unlocked?
2. Does it have the fingerprint reader as well?
3. How are you attempting to flash? RSD Lite appears to be the preferred method. See post #1 for link.
4. It just may not be possible.
5. That's all I have. I can't be of any further help.
Yes, bootloader is unlocked, I am trying to flash it with fastboot cmd, rsdlite doesn't detect my phone on my Windows 10...I am not sure if it has a fingerprint scanner, cannot find it in settings....
Burguitox said:
Do you want to say that it's factory unlocked?
Could you try with another GSM SIM card and confirm?
Thanks!
Click to expand...
Click to collapse
The only other GSM SIM I have to test with is a micro while the E4 takes a nano. Sorry, but I can't test that.

How to unlock without the device unlock app?

Hi All - I recently bought a Samsung Galaxy S8 from someone else. It worked fine when I was with T-mobile but when I moved to another network and popped in a new SIM, it asked me to "Enter network unlock code". I figured it must be locked to T-mobile so I reached out to them. They said my account met all the unlock criteria and said they'll send me instructions via email. I got the email two days later saying I need to use the "Device Unlock App". However, there's no such app on phone and there's no way to install it either (its not in the Play Store). I went back to T-mobile and they said since the device wasn't purchased through T-mobile, its not be a T-mobile "branded" phone. My questions are:
1. If its not a T-mobile branded phone, why does it only work on the T-mobile network? I checked its not rooted. It doesn't have any T-mobile apps and doesn't show any splash screen with the T-mobile logo.
2. Someone said that Samsung GS8 locks to the network of the first SIM you put into an unlocked phone. Is that true?
3. T-mobile says they've "whitelisted" my IMEI, so if I can somehow get the Device Unlock app I may be able to unlock it. Any idea how I can do that? Do I need to flash the firmware and install the T-mobile version or is there another way.
Thanks!
If you need to app, you can try here: https://support.t-mobile.com/docs/DOC-14011
However, as your phone is asking for the unlock code, the app might work but not unlock your phone.
You really need to do a network check and see which network is your phone actually locked. If your phone needs unlocking code, you might need factory level codes.
I think you should visit :
https://support.t-mobile.com

930A Flashed with 930U Unlock Question

I have a ATT 930A that I successfully flashed with 930U and it works great. I was thinking of making sure it was SIM unlocked in case later I wanted to sell it, so I made a request of ATT for the unlock code but when I try it it tells me the unlock was unsuccessful. Do I need to go back to 930A to make the code work?
Probably yes
I don't think so. Just put in a non AT&T SIM and it's gonna ask for an unlock code
epofhouston said:
I don't think so. Just put in a non AT&T SIM and it's gonna ask for an unlock code
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Click to collapse
I did but the code att gave me didn't work.
So did the phone prompt for a SIM unlock code and you typed it in, got an error? What is the error? SIM lock should not change when you flash different ROMs yo the phone.
epofhouston said:
So did the phone prompt for a SIM unlock code and you typed it in, got an error? What is the error? SIM lock should not change when you flash different ROMs yo the phone.
Click to expand...
Click to collapse
Yes, after entering the code it says "incorrect network unlock code entered"
I had this problem with my S7. I had paid off my contract however every time I tried input my IMEI number to the AT&T unlock device website it would tell my my IMEI is invalid. i contacted AT&T customer service directly and gave them my informatio. They had to put the case in for the unlock code themselves. Reason was since i didn't finish the 2 years even though i paid off my contract it got lost in the system hope this helps

Need help getting my AT&T sim card to work on my T-MOBILE ONEPLUS 6T

i know I posted earlier about a different issue, sorry for spamming the board.
I have a T-Mobile 1+6t with 9.0.15, i have been searching and tinkering all day and am still very confused about how to do this. From what I've seen, it is definitely possible, and every guide i've looked at is very simply laid out but i keep running into issues. Firstly, I have successfully converted to international version using the MSM tool. I thought this would be enough for my sim card to work but it is still not working. Now I am reading a bunch of other things about sim unlock and bootloader unlocking. Sorry but I am a noob at all of this. Can anyone point me in the exact direction in order for me to get my AT&T sim card working in my T-MOBILE 1+6t?
So my information is : TMOBILE 1+6t converted to International, running 9.0.15, and need to get AT&T sim card working.
What Ive done so far: converted to international.
What am I missing?
Before the conversion, you needed to get the carrier unlock code from TMo.
If you have not done that, you need to convert back to TMo firmware, get it unlocked from TMo, use the unlock app to unlock. After that you can flash the international firmware.
67BGTEV said:
Before the conversion, you needed to get the carrier unlock code from TMo.
If you have not done that, you need to convert back to TMo firmware, get it unlocked from TMo, use the unlock app to unlock. After that you can flash the international firmware.
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Click to collapse
is there a way around that? before i converted, i did see the unlock app and tried to use it but it said the device is not eligible. I called t-mobile and they said they'd send me instructions to unlock. But i am not totally sure if the phone is paid off, it was my gf's ex's phone who i don't know and she doesn't want to talk to
Right now i am trying something else - from the guides i've gathered, you need to be on 9.0.11 to unlock the bootloader and need the bootloader unlocked to unlock the sim, so:
I am downloading the files to downgrade to 9.0.11 international, unlocking the bootloader after that, then using this guide to unlock the sim. will this work?
There's no workaround.
If someone stole my TMo op6t and tried to use it in another network, he or she can't unlock it, as I own it and it may not have paid off.
Actually you can follow this guide ( https://forum.xda-developers.com/oneplus-6t/how-to/guide-sim-unlock-t-mobile-version-type-t3915269 ) to remove the Sim lock. In essence you'll convert it to international, erase the two modem files containing the Sim lock info, revert it back to the TMO version. Apply to OnePlus for your unlock token, wait a week to get it, then unlock bootloader. End result is a fully bootloader and Sim unlocked phone. Or if you're not interested in unlocking the bootloader you can skip the last part. You'll still have an unlocked phone.
jestyr8 said:
Actually you can follow this guide ( https://forum.xda-developers.com/oneplus-6t/how-to/guide-sim-unlock-t-mobile-version-type-t3915269 ) to remove the Sim lock. In essence you'll convert it to international, erase the two modem files containing the Sim lock info, revert it back to the TMO version. Apply to OnePlus for your unlock token, wait a week to get it, then unlock bootloader. End result is a fully bootloader and Sim unlocked phone. Or if you're not interested in unlocking the bootloader you can skip the last part. You'll still have an unlocked phone.
Click to expand...
Click to collapse
Hey I actually successfully followed this guide last night and am now typing on my 1+6t international w/ unlocked bootloader + sim unlock. I unlocked the bootloader using a different guide. One question: will updating my phone affect this sim unlock? Because I know you need 9.0.11 to unlock the bootloader, and you need an unlocked bootloader to use this sim unlock guide. I know there is an update available, Is it safe to update?
TrippyAzN said:
Hey I actually successfully followed this guide last night and am now typing on my 1+6t international w/ unlocked bootloader + sim unlock. I unlocked the bootloader using a different guide. One question: will updating my phone affect this sim unlock? Because I know you need 9.0.11 to unlock the bootloader, and you need an unlocked bootloader to use this sim unlock guide. I know there is an update available, Is it safe to update?
Click to expand...
Click to collapse
The Sim unlock sticks permanently, I've updated several times after doing the SIM unlock both on the TMO version and the international version and have had no issues at all. I flipped back and forth between the two trying to decide which I wanted to run. Stuck with the international just for the more consistent updates.
jestyr8 said:
The Sim unlock sticks permanently, I've updated several times after doing the SIM unlock both on the TMO version and the international version and have had no issues at all. I flipped back and forth between the two trying to decide which I wanted to run. Stuck with the international just for the more consistent updates.
Click to expand...
Click to collapse
Thanks for the info brotha!

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