Database Users

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.

LG G6 Bootloader not unlocking (US997)

I went to lg's website to unlock my bootloader and when I entered my device number and IMEI number and I got this message "Your device (LGUS997Z) does not support unlocking the bootloader. Please check your model. Your account will be locked if you enter the wrong information more than 6 times."
It's an lg g6 us997 which I was sure could be unlocked. Does anyone know whats going on? When I check my phone status it says LGUS997, not LGUS997Z.

mxknight77 said:
I went to lg's website to unlock my bootloader and when I entered my device number and IMEI number and I got this message "Your device (LGUS997Z) does not support unlocking the bootloader. Please check your model. Your account will be locked if you enter the wrong information more than 6 times."
It's an lg g6 us997 which I was sure could be unlocked. Does anyone know whats going on? When I check my phone status it says LGUS997, not LGUS997Z.
Click to expand...
Click to collapse
After doing some digging I found out there's 2 versions of the LGUS997. US Cellular and USA carrier unlocked. US Cellular hasn't had an unlocked bootloader and that's why I get the message.

You own a US Cellular LG US997Z. Unfortunately your phone isn't rootable.
Sorry for bad news.

[Q] Moto G5 Plus Stuck In "Limbo"?

As of this point the warranty on it has long since expired (for both Motorola and Target, the place where it was purchased) so we're pretty much willing to try anything to get it working
I've got with me here a G5 Plus XT1687 that, at best, I can describe as being in a state of "limbo". Its bootloader mode can only be set to flashing_unlock and flashing_lock. We've obtained the unlock key from Motorola's tool and have tried fully unlocking the bootloader multiple times following the guide on XDA, but it seems to not want to accept the command fully and remains on flashing_unlock. When I try to relock everything to start over, it gets stuck on "flashing_lock" and won't go back to fully locked. When it's in the flashing_unlock state I am able to flash ROMs and TWRP builds, so technically it's unlocked.... sort of. I'm unable flash SOME things, like new bootloaders or gpt partition tables, but other things will work just fine, albeit with the occasional "invalid signature" message following flashing. But this right here is only the start of our problems.
Having purchased the US retail XT1687 model, it was supposed to come carrier unlocked out of the box. My friend who got this didn't have a SIM when he got it at the time, so he just used it as a WiFi-only media player sort of thing. When he finally got a T-Mobile SIM and put it in, it asked him for an unlock code. This of course doesn't make any sense, because we didn't get this from a carrier, so why would it be locked to anything in the first place. It was tried with multiple different SIM cards, running multiple different ROMs (and even stock firmware) all with the same result: the phone seems to be network locked to nothing at all.
I tried calling Motorola and they said they can't make an unlock code for us since it's the carrier that decides what algorithm to use for network unlock codes... but this phone didn't come from a carrier, so I don't know what to do.
Fixing the bootloader thing would be nice, but my main goal here is to try and remove this nonsensical network lock so my friend can actually use it with T-Mobile. At this point he doesn't want to send it back (since we'd have to pay for the repairs, and he got a cheap LG to use as a primary phone anyway). That being said, we're pretty much willing to try anything to get it working. Any suggestions?
EDIT: just want to mention as well, we've never had a problem with the IMEI being set to 0. It's always been what it originally was

S8 unlocked but no service

I bought used S8 that had clean IMEI (not blacklisted), it was locked on Sprint and with financial eliglibity. Before I got it unlocked it didn't recognised any sim card, after unlocking it did regular setup on my ATT card with all the ATT apps but it doesn't have service. Then I tried with Verizon SIM and it did the same, regular setup but no service. What do you think what's the problem ?
Phone build number : R16NW.G950USQS3CRE2

Is it rooted, and if it is, have you uninstalled any system packages
If not, try a factory reset and making sure the sim is active and APN settings are working and you have chose a network

haroon.y said:
Is it rooted, and if it is, have you uninstalled any system packages
If not, try a factory reset and making sure the sim is active and APN settings are working and you have chose a network
Click to expand...
Click to collapse
It's not rooted, I did remote unlock with unlocking service and they flashed original firmware on it, nothing should be messed up.
I did factory reset few times as well as network reset. I double checked APN info and ofc it's setted up together with card.
I forgot to mention that phone is not showing up IMEI, actually nothing when I type *#06# in dial

that mean you lost imei ....flash factory firmware by yourself...it will do the trick

khawarjaved said:
that mean you lost imei ....flash factory firmware by yourself...it will do the trick
Click to expand...
Click to collapse
Can you explain me which one I need ? What about bootloader, is it the same ? I've checked thread about bootloader and mine is "carrier firmware", not unlocked.

Which career search for career. Look at the build number in abiut and search for that.

I'm using ATT and my phone was locked on Sprint, so I flashed Sprint firmware and It's the same. I put the SIM card in, it did ATT setup and all of the apps from carrier but it's still block sign instead of signal sign in top right corner and airplane mode is light blue (not usual blue like when you turn it on)
At least this time it's showing up imei in dialer
I couldn't find ATT firmware, if someone knows there's my build number in first post.

Network locked V35

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
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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
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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!
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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.
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Awesome, good job.