My ph is lg v20 ls997!! I dont know its ver, bootloader, lock or unlock i only know android 7.. and i use gsm network (not sprint)(before use when power on its show hand free activation) ?? Yesterday i update to oreo from ota update!! After Update successful all are smooth but simcard show invalid sim and i cant do anything!! Can u guys solve pls bro!! Sry for my nub english ?
ThantSinTun said:
My ph is lg v20 ls997!! I dont know its ver, bootloader, lock or unlock i only know android 7.. and i use gsm network (not sprint)(before use when power on its show hand free activation) ?? Yesterday i update to oreo from ota update!! After Update successful all are smooth but simcard show invalid sim and i cant do anything!! Can u guys solve pls bro!! Sry for my nub english ?
Click to expand...
Click to collapse
Now My Verison Is LS99720a pls solve i need to downgrade or purchase to sprint?? My country hav no sprint carrier
Well, you are kinda boned. There is no LS997 KDZ so you can't downgrade, and you can't use the VS995 KDZ since you are ARB 1.
Lesson learned, don't ever take an OTA update -- period -- rooted or not unless you are not rooted, AND you are using a carrier branded phone ON the carrier it was intended for.
-- Brian
runningnak3d said:
Well, you are kinda boned. There is no LS997 KDZ so you can't downgrade, and you can't use the VS995 KDZ since you are ARB 1.
Lesson learned, don't ever take an OTA update -- period -- rooted or not unless you are not rooted, AND you are using a carrier branded phone ON the carrier it was intended for.
-- Brian
Click to expand...
Click to collapse
Any other setting for invalid sim?? When power on Show ooredoo sim i use and 3 second later show invalid sim any service prevent ?? And i wanna know my device is root or no root '' bootloader unlocked or locked?? Where i check ? Pls help bro
I have the same issue. Downloaded the update and now invalid sim. Can't use phone txt or internet etc. Nothing mobile. Is there any fix for this? Who's fault is this? If my phone is now destroyed, can I get somebody to replace it? LG? Android? Phone was sprint. Used with cricket for around a year until this need the other day. Neither carrier knows how to fix. Thanks
I also have an LS997 GSM Unlocked (I bought it like this, not sure how it was done) and it was still unlocked after update to Oreo LS99720a. I didn't update it while it had the sim inside, and I factory reset after Oreo update. Try toggling network mode in settings to LTE/GSM/WCDMA and between CDMA/LTE + EvDO, but keep it on LTE/GSM/WCDMA. If you didn't properly unlock it, this may be the reason. If you can also see the CDMA Subscription option, set it to RUIM/SIM from NV. You could try DFS CDMA Tool 14 to change this if you can access DIAG mode from the hidden menu. I'm thinking the Sprint-TMobile merger (will be T-Mobile) will result in horrible OTA unlocking methods like they do currently instead of SIMCK, NCK, NSCK, or SIMCK. They'll likely rebrand the LS997 to T-Mobile and introduce their OTA unlock.
For now, try this:
Go into the phone dialer and type: 5689#*997#
Go to Field test > Modem Settings >RAT Selection > SELECT: GSM/WCDMA/LTE Auto
If it doesn't work, select LTE/WCDMA, then toggle back to GSM/WCDMA/LTE Auto
If it still doesn't work, remove the sim and try these steps above without the SIM, then retry.
Don't forget to update your APN settings for your carrier.
patato21 said:
I also have an LS997 GSM Unlocked (I bought it like this, not sure how it was done) and it was still unlocked after update to Oreo LS99720a. I didn't update it while it had the sim inside, and I factory reset after Oreo update. Try toggling network mode in settings to LTE/GSM/WCDMA and between CDMA/LTE + EvDO, but keep it on LTE/GSM/WCDMA. If you didn't properly unlock it, this may be the reason. If you can also see the CDMA Subscription option, set it to RUIM/SIM from NV. You could try DFS CDMA Tool 14 to change this if you can access DIAG mode from the hidden menu. I'm thinking the Sprint-TMobile merger (will be T-Mobile) will result in horrible OTA unlocking methods like they do currently instead of SIMCK, NCK, NSCK, or SIMCK. They'll likely rebrand the LS997 to T-Mobile and introduce their OTA unlock.
For now, try this:
Go into the phone dialer and type: 5689#*997#
Go to Field test > Modem Settings >RAT Selection > SELECT: GSM/WCDMA/LTE Auto
If it doesn't work, select LTE/WCDMA, then toggle back to GSM/WCDMA/LTE Auto
If it still doesn't work, remove the sim and try these steps above without the SIM, then retry.
Don't forget to update your APN settings for your carrier.
Click to expand...
Click to collapse
Carrier Signal show bro ph know carrier too but (invalid sim) still show
Go to the Sprint store (a legit Sprint owned one) and either get a compatible sim or have them fight extra hard to activate the sim you currently have...and idk if your still with Sprint or not...
---------- Post added at 06:12 PM ---------- Previous post was at 06:10 PM ----------
Also if you have the receipt you can try and get the sim unlock code from Sprint but since your not in a contract idk if they will give it to you...
Sprint does not have unlock codes. All you have to do is chat with their international division and they'll uicc unlock it for you.
This is important. Ask them to lock it from their end then ask them to unlock it. If your Sprint phone is paid off and clear then they will unlock it for free to use it on TMO or at&t
I've tried they keep saying that the phone is still unlocked on there end
I can't find these items!
Thanks for your reply.
I have the same exact issue. I tried your method to reach the hidden menu. I only have:
- Device Test
- ELT Test
- Factory Reset
- Log Service
Is there something I am missing?
patato21 said:
I also have an LS997 GSM Unlocked (I bought it like this, not sure how it was done) and it was still unlocked after update to Oreo LS99720a. I didn't update it while it had the sim inside, and I factory reset after Oreo update. Try toggling network mode in settings to LTE/GSM/WCDMA and between CDMA/LTE + EvDO, but keep it on LTE/GSM/WCDMA. If you didn't properly unlock it, this may be the reason. If you can also see the CDMA Subscription option, set it to RUIM/SIM from NV. You could try DFS CDMA Tool 14 to change this if you can access DIAG mode from the hidden menu. I'm thinking the Sprint-TMobile merger (will be T-Mobile) will result in horrible OTA unlocking methods like they do currently instead of SIMCK, NCK, NSCK, or SIMCK. They'll likely rebrand the LS997 to T-Mobile and introduce their OTA unlock.
For now, try this:
Go into the phone dialer and type: 5689#*997#
Go to Field test > Modem Settings >RAT Selection > SELECT: GSM/WCDMA/LTE Auto
If it doesn't work, select LTE/WCDMA, then toggle back to GSM/WCDMA/LTE Auto
If it still doesn't work, remove the sim and try these steps above without the SIM, then retry.
Don't forget to update your APN settings for your carrier.
Click to expand...
Click to collapse
Related
Hi guys:
i have looked on google etc. but can seem to find a answer. I bought a LG V20 H910PR (from claro unlocked) im using it on AT&T everything is running super fine but can't get 4G LTE only HSPA+. Is that from the phone that does not have all the bands for ATT or is there is something I need to setup?
Thanks,
Did you change your APN?
-- Brian
runningnak3d said:
Did you change your APN?
-- Brian
Click to expand...
Click to collapse
Yes the phone took the APN automatically
runningnak3d said:
Did you change your APN?
-- Brian
Click to expand...
Click to collapse
It has the NXTGENPHONE one I chaged it also to phone but still HSPA+
I will look and see if that model uses the same RSA key. If it does, then you can try flashing the entire AT&T firmware.
runningnak3d said:
I will look and see if that model uses the same RSA key. If it does, then you can try flashing the entire AT&T firmware.
Click to expand...
Click to collapse
Thanks
Your v20 supports most of att lte bands except band 17, all other should allow you to get lte with att. are you sure the apn is correct, and have you tried forcing the phone into lte mode?, use *#*#4636#*#*, if this menu does not work, download shurcutmaker from the playstore and search for network mode, that should allow you to open the network swtching menu.
runningnak3d said:
I will look and see if that model uses the same RSA key. If it does, then you can try flashing the entire AT&T firmware.
Click to expand...
Click to collapse
Hi,
Were you able to find if the firmware can be installed?
siulmagic said:
Your v20 supports most of att lte bands except band 17, all other should allow you to get lte with att. are you sure the apn is correct, and have you tried forcing the phone into lte mode?, use *#*#4636#*#*, if this menu does not work, download shurcutmaker from the playstore and search for network mode, that should allow you to open the network swtching menu.
Click to expand...
Click to collapse
Hi, I also have the same problem. The above mentioned code doesn't work, neither does the software you've mentioned. A bit more help will be appreciated.
Have the same problem on other operator. However if I reset the network settings and don't go into the network options it connects to 4G. If I just open the network settings, without touching anything, it locks to 3G/H+. There's no 4G option in network settings as mentioned. My APN is set up correctly. I did a bit of research and found these threads on Vietnamese forum, google translate was not helpful.
lgviet.com/forum/threads/mat-song-4g-ban-nao-ho-tro-minh-voi.66812/
lgviet.com/forum/threads/up-nhàm-rom-khác-khong-4g.67637/
lgviet.com/forum/threads/sua-loi-mat-3g-4g-lg-v20-h910pr.69517/
If you can't open the links, paste them in google and use google translate option. Any help would be appreciated.
vzeljkov said:
Have the same problem on other operator. However if I reset the network settings and don't go into the network options it connects to 4G. If I just open the network settings, without touching anything, it locks to 3G/H+. There's no 4G option in network settings as mentioned. My APN is set up correctly. I did a bit of research and found these threads on Vietnamese forum, google translate was not helpful.
lgviet.com/forum/threads/mat-song-4g-ban-nao-ho-tro-minh-voi.66812/
lgviet.com/forum/threads/up-nhàm-rom-khác-khong-4g.67637/
lgviet.com/forum/threads/sua-loi-mat-3g-4g-lg-v20-h910pr.69517/
If you can't open the links, paste them in google and use google translate option. Any help would be appreciated.
Click to expand...
Click to collapse
the reset method working for me, but this behaviour is weird, thanks though, i really down last week because of this, got scammed h910 version lol
Please see my write-up here: https://forum.xda-developers.com/v20/how-to/hardware-modem-modem-firmware-ril-t3744860
-- Brian
I running to other issue, when im on data and then there's call coming, after that my phone locked to 2G, i dont know how many time i must reset network....
runningnak3d said:
Please see my write-up here: https://forum.xda-developers.com/v20/how-to/hardware-modem-modem-firmware-ril-t3744860
-- Brian
Click to expand...
Click to collapse
Is it safe to root/flash ROMs onto H910PR (it has V10j-CLR-PR software) using the H910 methods mentioned here?
Dhikavolution said:
I running to other issue, when im on data and then there's call coming, after that my phone locked to 2G, i dont know how many time i must reset network....
Click to expand...
Click to collapse
Unfortunately I have the same issue, really disappointing. I'll try messaging the seller on aliexpress or I'll try to get in touch with the service on that Vietnamese forum I mentioned earlier. It is obviously software-side error so I am hoping this can be solved.
Also, you can go to service menu by typing *#546368#*910#.
Edit: After a bit of research I came across this thread: https://forum.xda-developers.com/lg-g3/help/lte-option-network-selection-t2827499
It is for LG G3 but the problem is the same. Basically Field test-Modem Settings-RAT selection - GSM/CDMA/LTE is a temporary fix. Other methods require root.
In the Field Test - PDP Setting - APN setting I have "LTE attach profile" which is hidden in the normal Network Settings menu. Don't know will modifying this to match my carrier's APN will change anything.
If you are still ARB 0, then you can use the H910 method. If you are ARB 1 or greater you will have to wait for the firehose method.
vzeljkov said:
Have the same problem on other operator. However if I reset the network settings and don't go into the network options it connects to 4G. If I just open the network settings, without touching anything, it locks to 3G/H+. There's no 4G option in network settings as mentioned. My APN is set up correctly. I did a bit of research and found these threads on Vietnamese forum, google translate was not helpful.
lgviet.com/forum/threads/mat-song-4g-ban-nao-ho-tro-minh-voi.66812/
lgviet.com/forum/threads/up-nhàm-rom-khác-khong-4g.67637/
lgviet.com/forum/threads/sua-loi-mat-3g-4g-lg-v20-h910pr.69517/
Hello, I am new to the site, something similar happens to me, I have an LG V20 H910, with the AT&T system it allowed me to select the 4G mode in the mobile networks option, now I changed the system for the company CLARO Puerto Rico And I don't get the 4G option in the settings, I only get 2G and 3G. It does not let me enter the hidden menu either, it tells me that it does not work on this device, I can not solve with the combination * # 546368 # * 910 #, I select the option only LTE, the coverage goes away and it comes back in 3G. Please, if someone solved this problem can you help me?
Click to expand...
Click to collapse
H910PR - How to root & install any ROM! (all lineage ROMs verified)
Hey guys! :D I've been struggling over the weekend to get my H910PR rooted w/ a custom ROM installed. I kept getting kernel panics saying 'modem crashed' but was finally able to figure it out. Step 1 - Root / TWRP I followed these steps...
forum.xda-developers.com
Hello readers and devs,
TL;DR
Debranded a Sprint LG G6 --> Factory & Hard Reset phone --> SIM card not being read.
-----
Need help getting my phone back on MetroPCS network after a debrand. I will try to be a thorough as I can for SEO robots and to explain as best I can what I did and what I noticed changing.
!!! action --> I debranded (unbranded, sic) my Sprint LG G6 993 phone using the code provided in the forums, hoping for the best.
I noticed the following changed after debranding:
APNs were locked (not able to create new or edit, however the MetroPCS APN was still there)
Sprint logo during boot gone
WiFi Calling option gone (was not working on MetroPCS network anyway)
mobile settings -> network mode -> GSM and Automatic options missing; set to LTE/CDMA
the cellular network connection to MetroPCS was not functioning properly
SIM card error when a phone call was made, no texting either
So, I naturally read through the forums to try to get the phone working properly again on my network. I read the topic Sprint LG G6 (LS993) Dial Codes.
!!! action --> I used the code ##72786# to "Reset provisioning and makes phone reactivate".
After that, I noticed that the MetroPCS APN was removed. APNs still not editable. At this point after reading some more on the forum I decided that I needed to get the phones MSL code, go into the service menu and edit the APNs from there. However, after getting the MSL and going into the service menu area, the APN area would still not allow me to edit the fields.
I went to MetroPCS to see if they could put a new sim card in the phone, hell for all I knew maybe my sim card was bad, remember when I try to make a call I get a SIM card error message. MetroPCS guy tries some things, calls up a service person on the phone, says nothing is wrong with the sim. Tells me to come back in 30 min. I go over to Sprint, give them the phone and tell them what is happening. They say the phone IS unlocked. Then a sales rep tells me that debranding the phone means that it is no longer a Sprint phone and they will not touch the phone. I ask nicely for a tech supervisor. Sprint supervisor says that I should try to Factory Reset the phone. I go home, backup the phone and do a factory reset.
!!! action --> Factory Reset the phone.
Changes:
mobile settings -> network mode -> GSM and Automatic options appear again; set to Automatic
Still unable to add or edit APNs (the APN area options are all greyed out).
!!! action --> I take out the SIM card and put it into my previous phone (Samsung Galaxy On5) thinking well i need a working phone.
I get an error, On5 is not connecting to the network, needs to be activated.
!!! action --> I take out the sim card and put it back into the LG G6.
Changes:
Invalid SIM card error (phone does not detect the sim card)
The SIM card is not being detected by the phone.
I read the forums some more and discovered a post that referenced a LG G6 that was debranded and to get it working again the owner had to buy a Sprint Prepaid activation SIM to re-provision the phone to get it working again on his alternative network.
I downloaded a SIM Card reader and the LG G6 doesnt give me any information on the sim card. If I put the SIM card into my On5 phone and use the SIM Card reader app I can see that my SIM card is okay and all data is displayed properly for the SIM.
I am not really sure what to do, but try to get a Sprint SIM card and put it in to try to reprovision the phone to Sprint and then move it back over to MetroPCS.
Please help what should I do now to get the phone back on MetroPCS?
Thanks,
Trumpet
TrumpetWinsockError said:
*SNIP*
I downloaded a SIM Card reader and the LG G6 doesnt give me any information on the sim card. If I put the SIM card into my On5 phone and use the SIM Card reader app I can see that my SIM card is okay and all data is displayed properly for the SIM.
I am not really sure what to do, but try to get a Sprint SIM card and put it in to try to reprovision the phone to Sprint and then move it back over to MetroPCS.
Please help what should I do now to get the phone back on MetroPCS?
Click to expand...
Click to collapse
Debranding?
The boot loader is locked so how can you modify anything on the phone?
First I would kdz back to stock.
That is install the version of software unaltered that should have come with the phone.
I'll leave it up to you to search in the QA section.
Once that is done, confirm the phone is unlocked.
You should need to do nothing more than to drop in the Metro SIM to have it work.
If the phone is not unlocked you will get "invalid SIM" messages.
tech_head said:
Debranding?
The boot loader is locked so how can you modify anything on the phone?
Click to expand...
Click to collapse
Firstly, thank you for the read and reply. I was able to debrand the phone utilizing a dial code found in this thread:
sprint-lg-g6-ls993-dial-codes
The thread states:
"##27263# (##BRAND#) - Removes any carrier branding and redetects the carrier based on (NV registry/RUIM/SIM?).
Note: Useful if flashing to Boost Mobile or similar carrier."
After debranding the APN area became un-editable.
tech_head said:
First I would kdz back to stock.
That is install the version of software unaltered that should have come with the phone.
I'll leave it up to you to search in the QA section.
Click to expand...
Click to collapse
I checked this thread:
list-lg-g6-stock-firmware
At this time there is not a Sprint LG G6 KDZ.
tech_head said:
Once that is done, confirm the phone is unlocked.
You should need to do nothing more than to drop in the Metro SIM to have it work.
If the phone is not unlocked you will get "invalid SIM" messages.
Click to expand...
Click to collapse
I need to confirm that the phone is unlocked. I did have a conversation with Sprint technician that said it came up unlocked in their system. It could be possible (although I don not know for sure) that the phone's hardware/software is locked and yet Sprint cell network has the phone unlocked in their system. Maybe I need to purchase an unlock service for the phone?
Have you tried this thread? https://forum.xda-developers.com/sprint-g6/help/mobile-gsm-data-issues-unlock-t3625705
I have the same issued. After "debranding" I can't add a new APN. In my case I do have voice and SMS, but no DATA since I can't add an APN.. Were you able to fix your phone. Please share the solution if you did. Thanks
ultra_dd7 said:
I have the same issued. After "debranding" I can't add a new APN. In my case I do have voice and SMS, but no DATA since I can't add an APN.. Were you able to fix your phone. Please share the solution if you did. Thanks
Click to expand...
Click to collapse
Im also having the sam issue
The only way to fix this is to insert an active sprint sim card with service and dial ##72786# to re-activate
Since i switched to metro pcs ......my sim service is not active
I gotta find someone
ultra_dd7 said:
I have the same issued. After "debranding" I can't add a new APN. In my case I do have voice and SMS, but no DATA since I can't add an APN.. Were you able to fix your phone. Please share the solution if you did. Thanks
Click to expand...
Click to collapse
is your problem solved?
same problem
i have the same problem but i select de uicc unlock and works my mexico sim but just only voice calls and text. apn still greyed out and says otasn on apn settings grayed out too. any solution for this ?
Try this:
Dial 5689#*993# ; go to NAOT + NAO Test + NAO CARRIER (Select NONE).
After that you will be able to edit/add APNs
i got the phone couple days ago from a friend already unlock it but now when i puted another sim card the network gone every 5sec i readed couple thread about this
i tried callhidden menue even if its not working but i was able to choose gsm/wcdma/lte auto and set naot to spr but still same problem and i tried all naot settng att vzw etc nothing worked
and i I don't see the IOT (CDG2) menu when i open the hidden menu
my question if i root it and flash custom rom im able to fix this problem with sim
or do the remot unlock fix them or gtag or some boxes
i uploaded small video of my problem
https://streamable.com/4xdog
It is quite obvious that you are not properly SIM unlocked.
Please repeat the SIM unlock process (jtag box via phone download mode) again with your friend.
Hi was the phone unlocked by sprint. Is there any way to unlock besides sprint?
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.
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.
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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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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.