Best guides to follow: V405QA + Crossflash + Lineage + root - LG V40 Guides, News, & Discussion

I just bought a carrier unlocked V405QA running V405UA20a. Confirmed with my t-mobile sim card.
My goal is to install Lineage 17.1 with root via TWRP and use it on t-mobile service. After reading a lot I’m still not 100% sure how to proceed.
The steps I think I should follow are:
Crossflash with a US unlocked rom (V405QA20a). Using this guide.
Unlock the bootloader using this guide. Since I have "Enable OEM Unlock" and I’m running Pie I think I should skip the V35 Bootloader section but I’m not sure.
Install TWRP and root using this guide.
There's also this guide from getdroidtips.com which seems simpler and covers steps 2 and 3.
Has anyone tried similar steps?
Is crossflashing required if I'm going to load Lineage anyway?
Can step 2 result in loosing fastboot?
Is getdroidtips guide a better approach?
Thanks for any advice you can offer.

I'm trying to do this too
I have had a good few headaches from it, and still am not done. But most of my headaches I could easily say are my fault.
Crossflashing worked great for me, works with Tmobile
When I first unlocked I was able to use fastboot, get TWRP working, and run LineageOS. But after stuff messing up, I have now lost fastboot mode and don't know how to get it back
It's all possible, and not too hard. I personally followed the steps you think you should follow. But I'd recommend hearing what other people have to say first before you start doing things.
Edit : I got a sprint carrier locked one and made it unlocked

So I’m not 100% sure on the steps for unlocking that the getdroidtips.com guide gives you. I’m pretty sure it only works for European models. Honestly, the other two guides don’t look too crazy. Although, you may want to cross flash AFTER unlocking your boot loader. My v40 gets here sometime this week. I’ll try to follow the other guides and I’ll let you know how it goes.

NoburtM said:
I'm trying to do this too
I have had a good few headaches from it, and still am not done. But most of my headaches I could easily say are my fault.
Crossflashing worked great for me, works with Tmobile
When I first unlocked I was able to use fastboot, get TWRP working, and run LineageOS. But after stuff messing up, I have now lost fastboot mode and don't know how to get it back
It's all possible, and not too hard. I personally followed the steps you think you should follow. But I'd recommend hearing what other people have to say first before you start doing things.
Edit : I got a sprint carrier locked one and made it unlocked
Click to expand...
Click to collapse
How did you sim unlocked your Sprint phone? Tia

Metconnect2000 said:
How did you sim unlocked your Sprint phone? Tia
Click to expand...
Click to collapse
Just google it, there are a ton of different guides. You can either contact sprint, or you can pay for an unlock service. Usually they are like 10$

Metconnect2000 said:
How did you sim unlocked your Sprint phone? Tia
Click to expand...
Click to collapse
I just followed the 9008 method to make my phone be able to use my tmobile sim card.
https://forum.xda-developers.com/lg-v40/how-to/unlock-lg-v40-via-9008-root-t-mobile-t4042207

NoburtM said:
I just followed the 9008 method to make my phone be able to use my tmobile sim card.
https://forum.xda-developers.com/lg-v40/how-to/unlock-lg-v40-via-9008-root-t-mobile-t4042207
Click to expand...
Click to collapse
Thanks! I thought the guide is only for bootloader unlocked. Does it carrier unlock the phones too?

Metconnect2000 said:
Thanks! I thought the guide is only for bootloader unlocked. Does it carrier unlock the phones too?
Click to expand...
Click to collapse
I'm 99% sure this method is only to unlock/mod the bootloader....and does NOT network/carrier /sim unlock anything. If there is a sim/unlock method that is do-it-yourself, it would require flashing a rom etc. I would love to be wrong here though.

poog said:
I'm 99% sure this method is only to unlock/mod the bootloader....and does NOT network/carrier /sim unlock anything. If there is a sim/unlock method that is do-it-yourself, it would require flashing a rom etc. I would love to be wrong here though.
Click to expand...
Click to collapse
Thanks. That's what I thought too. Was puzzled by the earlier poster.

mrvoidman said:
I just bought a carrier unlocked V405QA running V405UA20a. Confirmed with my t-mobile sim card.
My goal is to install Lineage 17.1 with root via TWRP and use it on t-mobile service. After reading a lot I’m still not 100% sure how to proceed.
The steps I think I should follow are:
Crossflash with a US unlocked rom (V405QA20a). Using this guide.
Unlock the bootloader using this guide. Since I have "Enable OEM Unlock" and I’m running Pie I think I should skip the V35 Bootloader section but I’m not sure.
Install TWRP and root using this guide.
There's also this guide from getdroidtips.com which seems simpler and covers steps 2 and 3.
Has anyone tried similar steps?
Is crossflashing required if I'm going to load Lineage anyway?
Can step 2 result in loosing fastboot?
Is getdroidtips guide a better approach?
Thanks for any advice you can offer.
Click to expand...
Click to collapse
Just follow the whole guide and definitely do not use getdroidtips. You still need the engineering abl to enable fastboot and run the unlock command
---------- Post added at 09:12 AM ---------- Previous post was at 09:11 AM ----------
Metconnect2000 said:
Thanks! I thought the guide is only for bootloader unlocked. Does it carrier unlock the phones too?
Click to expand...
Click to collapse
No it definitely doesn't...

Related

[Q] Fastboot failure help needed

I am running a Verizon Moto X still on 4.2.2. I am rooted. This is NOT the Dev edition. I have plenty of experience with rooting/flashing these phones so back when I first got it the directions on rooting/flashing roms was VERY vague. No one specified you needed the Dev edition to unlock the boot loader. Well I think this came from at one point when I tried to flash TWRP (maybe). Either way, I want to take the OTA update and cannot. Does anyone know how to fix this without doing the RSD, reflash stock method? Here is a picture of what it looks like (thanks for your help in advance):
You should check out the 'Chinese Middleman' thread. If you get the bootloader unlocked you should be able to fix anything.
I can't unlock the bootloader since this is not a Dev edition. Unless something has changed, I'll check it.
You should be able to unlock the boot loader but will not have warranty.
https://motorola-global-portal.custhelp.com/app/standalone/bootloader/unlock-your-device-a
Sent from my XT1053 using Tapatalk
shamelin73 said:
You should be able to unlock the boot loader but will not have warranty.
https://motorola-global-portal.custhelp.com/app/standalone/bootloader/unlock-your-device-a
Sent from my XT1053 using Tapatalk
Click to expand...
Click to collapse
Even though it's not a Dev edition?
Yes you should be able too.
Sent from my XT1053 using Tapatalk
danman421 said:
Even though it's not a Dev edition?
Click to expand...
Click to collapse
All XT1053s can be unlocked, yes. Additionally, if you follow my advice, you don't NEED to unlock. If one of the commands fails, simply skip to the next as I previously advised, and TRY flashing with RSD Lite after you have run the commands I listed.
If you want to check and make sure fastboot is working, type:
fastboot devices
if you see your phone and it's serial number listed, you fastboot IS properly communicating with your phone.
You do not need to unlock your BL to do any of this...but if you are interested in ROOTING, you will need to.
All I really want to do is make it so my phone can take the update and any future updates. What do you mean as you previously stated?
shamelin73 said:
You should be able to unlock the boot loader but will not have warranty.
https://motorola-global-portal.custhelp.com/app/standalone/bootloader/unlock-your-device-a
Sent from my XT1053 using Tapatalk
Click to expand...
Click to collapse
I tried this as I did before and I get "your device does not qualify for bootloader unlocking". All I need to know is how to fix this from someone.
danman421 said:
All I really want to do is make it so my phone can take the update and any future updates. What do you mean as you previously stated?
Click to expand...
Click to collapse
I confused you with a member I had helped previously - sorry. Please disregard the "previously stated" comment.
danman421 said:
I tried this as I did before and I get "your device does not qualify for bootloader unlocking". All I need to know is how to fix this from someone.
Click to expand...
Click to collapse
It does NOT require unlocking the bootloader to flash your carrier's correct ROM. Simply follow the instructions in the "Return to 100% Stock" thread to flash the XT1053 ROM, and you'll be able to take all future updates.
If you DO unlock the bootloader, flash custom recovery, and root your device, you will have to un-do any modifications made before EVERY OTA. If you don't care about root, don't worry about unlocking.
Additionally, if you DO want to unlock, you could try a different browser and make sure you are inputting the unlock data correctly. It is recommended that you copy the unlock data from the command prompt to notepad, remove all spaces and bootloader messages (you ONLY want the code - as one complete string), then copy from notepad into the Unlock website.
And finally, keep in mind that unless you unlock your BL, you will not be able to root and disable write-protect once you update to the latest version.
The real problem here is that you use an "Exploit" to root your device previously. Now you need to return to full stock to restore your partitions to their factory state.
Simply follow the instructions in the Return to stock thread (in general sub-forum), and be sure to flash the LATEST version for your carrier. It should be 4.4.3.
Good Luck.
samwathegreat said:
I confused you with a member I had helped previously - sorry. Please disregard the "previously stated" comment.
It does NOT require unlocking the bootloader to flash your carrier's correct ROM. Simply follow the instructions in the "Return to 100% Stock" thread to flash the XT1053 ROM, and you'll be able to take all future updates.
If you DO unlock the bootloader, flash custom recovery, and root your device, you will have to un-do any modifications made before EVERY OTA. If you don't care about root, don't worry about unlocking.
Additionally, if you DO want to unlock, you could try a different browser and make sure you are inputting the unlock data correctly. It is recommended that you copy the unlock data from the command prompt to notepad, remove all spaces and bootloader messages (you ONLY want the code - as one complete string), then copy from notepad into the Unlock website.
And finally, keep in mind that unless you unlock your BL, you will not be able to root and disable write-protect once you update to the latest version.
The real problem here is that you use an "Exploit" to root your device previously. Now you need to return to full stock to restore your partitions to their factory state.
Simply follow the instructions in the Return to stock thread (in general sub-forum), and be sure to flash the LATEST version for your carrier. It should be 4.4.3.
Good Luck.
Click to expand...
Click to collapse
So if I am reading this correctly, there is no way to keep all of my data and take the update?
danman421 said:
So if I am reading this correctly, there is no way to keep all of my data and take the update?
Click to expand...
Click to collapse
You can attempt to, by either editing the XML in the SBF and removing the line that says "erase userdata", or by skipping the erase userdata if you use the manual method, but either way CAN mess everything up.
You used an EXPLOIT previously. Any time you use an exploit, you should -expect- to have to wipe everything and re-install from scratch if you want to get back to stock in order to be able to take updates. Keep this in mind if you use any exploits in the future.
Hi! This hasn't seemed to spelled out yet..... But many Moto x's can be unlocked, not just dev editions. However, you stated in the opening post that you have a Verizon Non dev, which can not be unlocked. Only way is to pay the "China middleman" (See thread in general with that name).
And personally.... I would stay on 4.2.2 and do the Slapmymoto method to get root and write protection disabled. That is the best root scenario, aside from unlocking the bootloader.
If you update to 4.4.2 or higher, you will have write protection enabled always, and no root, or sorta root with towelroot and pie. But that will limit what you can do.
See the How do I root my phone sticky thread in general for your options.
I should have posted earlier. I ran RSDLite and put the newest version on. I am unrooted. My Moto X is a Sept '13 version the the middleman probably wont work anyways. Its not worth it with this phone, im tired of the rooting, I guess im at that point in my life... Thanks for all your help though guys!
danman421 said:
I am running a Verizon Moto X still on 4.2.2. I am rooted. This is NOT the Dev edition. I have plenty of experience with rooting/flashing these phones so back when I first got it the directions on rooting/flashing roms was VERY vague. No one specified you needed the Dev edition to unlock the boot loader. Well I think this came from at one point when I tried to flash TWRP (maybe). Either way, I want to take the OTA update and cannot. Does anyone know how to fix this without doing the RSD, reflash stock method? Here is a picture of what it looks like (thanks for your help in advance):
Click to expand...
Click to collapse
Pardon my jumping in here late but..
I see a big issue here.
Based on that screen shot, you have boot loader 30.B4, that is NOT the bootloader that comes wtih 4.2.2. Did you mean to type 4.4.2? or do you really have 4.2.2 on there?
If you really had 4.2.2 on your phone with a 30.B4 bootloader, then you had 4.4.2 on there at one point, and downgraded!! You need to be REALLY CAREFUL or you will brick your phone.
You are correct, I was on 4.4.2. My wife's S4 that I just upgraded was on 4.2.2. Sorry for the confusion.
KidJoe said:
Pardon my jumping in here late but..
I see a big issue here.
Based on that screen shot, you have boot loader 30.B4, that is NOT the bootloader that comes wtih 4.2.2. Did you mean to type 4.4.2? or do you really have 4.2.2 on there?
If you really had 4.2.2 on your phone with a 30.B4 bootloader, then you had 4.4.2 on there at one point, and downgraded!! You need to be REALLY CAREFUL or you will brick your phone.
Click to expand...
Click to collapse
Good catch! ?
OP... Perhaps full disclosure of what you have done on the phone would help.
Or is that how it was?
If it's been downgraded to 4.2.2 after being on 4.4.2... As said above.... You could brick now... Especially if you OTA.
I'd tread lightly at this point.
danman421 said:
You are correct, I was on 4.4.2. My wife's S4 that I just upgraded was on 4.2.2. Sorry for the confusion.
Click to expand...
Click to collapse
so based on post # 14 of this post... it appears you are all good now? is that the case? Or do you still need help?
Oh, and if your bootloader is locked (Verizon non-DE), you can't get code from China Middle man, and you are on 4.4.2, you could try TowelPieRoot for rooting, but write protection is enabled so it will be kind of limited (compared to SlapMyMoto/MotoWPNoMO or if you had an unlocked bootloader), and there is no root for 4.4.4.
Yes, that was a good catch. What I did was RSD Lite to 4.4.4 now which reset all my data.
KidJoe said:
so based on post # 14 of this post... it appears you are all good now? is that the case? Or do you still need help?
Oh, and if your bootloader is locked (Verizon non-DE), you can't get code from China Middle man, and you are on 4.4.2, you could try TowelPieRoot for rooting, but write protection is enabled so it will be kind of limited (compared to SlapMyMoto/MotoWPNoMO or if you had an unlocked bootloader), and there is no root for 4.4.4.
Click to expand...
Click to collapse
Correct, I do not need help anymore but thank you.

Is the bootloader unlocked or no?

On the tmo lg g4
Yes. Enable OEM unlock on the dev options.
20degrees said:
Yes. Enable OEM unlock on the dev options.
Click to expand...
Click to collapse
Lucky us then
Sent from my A0001
With the TMO version unlocked you'd think we'd have a simpler root method than flashing the entire /system partition, wouldn't you?
Barsky said:
With the TMO version unlocked you'd think we'd have a simpler root method than flashing the entire /system partition, wouldn't you?
Click to expand...
Click to collapse
There is. Check the dev section
Edit: http://forum.xda-developers.com/showthread.php?t=3172936
[TOOL] One Click TWRP (No root needed)
Sent from my LG-H811 using Tapatalk
coolmaster121 said:
There is. Check the dev section
Edit: http://forum.xda-developers.com/showthread.php?t=3172936
[TOOL] One Click TWRP (No root needed)
Sent from my LG-H811 using Tapatalk
Click to expand...
Click to collapse
Great. Thanks
G4 newbie here, so the bootloader is fully unlocked on the T-Mobile version then? You don't have to do the official LG Developer unlock method that currently only the 815 EUR model can do?
When ROMs drop, you have full access to the phone? Just want to confirm, I had a non EUR model on AT&T that worked great, but was sick of not having any access to the system. Does the H811 have the bands required for AT&T?
Fully unlocked. No LG dev stuff.
20degrees said:
Fully unlocked. No LG dev stuff.
Click to expand...
Click to collapse
Question to anyone willing to answer:
How did people figure out that enabling OEM unlock made the bootloader be unlocked on the T-Mobile variant? I'm wondering because we have very little info on the H812 variant to determine if this technique would work. And please don't give me that canned answer "IT ONLY WORKS ON H815 and H811", as I know what I'm doing... I just want to understand why the H811 T-Mobile is different and if other more obscure variants could also have this solution.
Thanks!
I Attempted to flash the twrp one click recovery to my friends LG G4 H811 TMOBILE, I went to developer mode, checked the box to OEM UNLOCK, and whenever the phone reboots to Fastboot or Download mode, if done by the H811 one click bat script, the phone only reboots regularly, if i manually adb reboot-fastboot then the screen shows a barcode, and the phones IMEI number. Whats up with this?
pr0xych41ns said:
I Attempted to flash the twrp one click recovery to my friends LG G4 H811 TMOBILE, I went to developer mode, checked the box to OEM UNLOCK, and whenever the phone reboots to Fastboot or Download mode, if done by the H811 one click bat script, the phone only reboots regularly, if i manually adb reboot-fastboot then the screen shows a barcode, and the phones IMEI number. Whats up with this?
Click to expand...
Click to collapse
If you want root H81110N, just go this route. Much easier and works. http://forum.xda-developers.com/tmobile-g4/development/h81110n-stock-rooted-image-t3191038
---------- Post added at 04:54 PM ---------- Previous post was at 04:51 PM ----------
karendar said:
Question to anyone willing to answer:
How did people figure out that enabling OEM unlock made the bootloader be unlocked on the T-Mobile variant? I'm wondering because we have very little info on the H812 variant to determine if this technique would work. And please don't give me that canned answer "IT ONLY WORKS ON H815 and H811", as I know what I'm doing... I just want to understand why the H811 T-Mobile is different and if other more obscure variants could also have this solution.
Thanks!
Click to expand...
Click to collapse
The H811 Tmo is different because the carrier, TMO, decided to allow it to be unlocked. That is pretty much all there is to it. I am sure that is frustrating to non H815 and H811 owners.
coolmaster121 said:
Originally Posted by Barsky
With the TMO version unlocked you'd think we'd have a simpler root method than flashing the entire /system partition, wouldn't you?
Click to expand...
Click to collapse
There is. Check the dev section
Edit: http://forum.xda-developers.com/showthread.php?t=3172936
[TOOL] One Click TWRP (No root needed)
Click to expand...
Click to collapse
The first post in that thread says:
"T-Mobile USA LG G4 H811 10H. WILL NOT WORK ON 10N."
I have the 10N. I also don't have a Windows computer. Where can I find instructions for obtaining root? (I prefer a manual method using Linux commands if possible.)

Relock Droid Turbo Bootloader

What's the process for going about it? I did do a search, but didn't find anything useful. Any help would be appreciated.
Reasoning: I'm going to be upgrading and turning in the phone, so it's time to put it back to factory.
mlw4428 said:
What's the process for going about it? I did do a search, but didn't find anything useful. Any help would be appreciated.
Reasoning: I'm going to be upgrading and turning in the phone, so it's time to put it back to factory.
Click to expand...
Click to collapse
1. Go back to stock everything by following section 0 of this guide: http://forum.xda-developers.com/droid-turbo/general/guide-how-to-unlock-bootloader-install-t3292684
2. While in bootloader mode, use the fastboot command "fastboot oem lock"
If you're turning in the phone to Verizon, this method is okay. However, don't do this if you plan on selling the phone to someone else. If they were to try and unlock the phone again, they would most likely brick it.
According to jcase relocking the bootloader it still shows a modified status code. Your warranty is permanently voided.
Are you on an Edge plan? Otherwise I don't know why you would be returning the phone to upgrade. Also not sure what their rules are on permanently modifying the software of one of these essentially "lease-to-own" devices, so might want to check the terms and conditions if this applies to you. If you are just trading it in for credit toward a new phone, I'd just sell it yourself unlocked and get a lot more for it.
Sent from my XT1254 using Tapatalk
SpyderPride said:
If you are just trading it in for credit toward a new phone, I'd just sell it yourself unlocked and get a lot more for it.
Click to expand...
Click to collapse
A bootloader unlocked, rooted XT1254 would be more valuable to a buyer than one locked down. You've already done all the hard work.
TheSt33v said:
1. Go back to stock everything by following section 0 of this guide: http://forum.xda-developers.com/droid-turbo/general/guide-how-to-unlock-bootloader-install-t3292684
2. While in bootloader mode, use the fastboot command "fastboot oem lock"
If you're turning in the phone to Verizon, this method is okay. However, don't do this if you plan on selling the phone to someone else. If they were to try and unlock the phone again, they would most likely brick it.
Click to expand...
Click to collapse
Heya so I'm in a serious bind.
I skipped your step 1 and locked my bootloader. I have an unlocked bootloader. I recently upgraded through the normal verizon pushed update the marshmallow update. Anyhow. I now want to return the phone for an upgrade and well... I locked the bootloader. Then turn the phone off and turned it back on and it now says locked, but it says failed to validate system image. I then got freaked out and downloaded all the step 1 files and tried to flash the stock rom (which i already had installed!) and that doesn't seem to work. Did I brick my phone? Is there any way to get it working now that it is locked with any kind of android at all?
You're probably fine @droidfun1. You just need to use the marshmallow firmware package instead of the lollipop one. Get it here: https://forum.xda-developers.com/dr...-official-stock-firmware-6-0-1-mcg24-t3531571
Yup, I tried flashing the stock 6.0.1 rom with fastboot on my mac but I got all kinds of fails.
I found a mac compatible command line version of RSDLite and it totally worked! Not sure why fastboot couldn't successfully flash the same stock rom?
Now I just need to remove the bootloader unlocked warning (my phone is now locked status 2), but not sure if I can now that it is locked.
TheSt33v said:
You're probably fine @droidfun1. You just need to use the marshmallow firmware package instead of the lollipop one. Get it here: https://forum.xda-developers.com/dr...-official-stock-firmware-6-0-1-mcg24-t3531571
Click to expand...
Click to collapse
droidfun1 said:
Yup, I tried flashing the stock 6.0.1 rom with fastboot on my mac but I got all kinds of fails.
I found a mac compatible command line version of RSDLite and it totally worked! Not sure why fastboot couldn't successfully flash the same stock rom?
Now I just need to remove the bootloader unlocked warning (my phone is now locked status 2), but not sure if I can now that it is locked.
Click to expand...
Click to collapse
Strange. As far as I understand it, RSDlite just automates fastboot, so even if you're using RSDlite, you're actually using fastboot. Whatever works though.
As for the unlocked bootloader message, see my response to that post you made.

[T-Mobile / Guide] - Full SIM and Bootloader Unlock + Root for locked devices

Background: I am writing this short guide for people like me that want all the info about the T-Mobile 6T unlock capabilities. None of this is my work. I wanted to have a central thread where T-Mobile users can discuss the T-Mobile specifics of this device.
When you purchase a T-Mobile branded OP 6T the device will be SIM and Bootloader locked. Many great people here on XDA found ways around the SIM and bootloader lock. I am simply compiling it all here in one simple thread to be a resource for us T-Mobile users. In this guide you will be directed to the proper resources to SIM and bootloader unlock your T-Mobile 6T and return to T-Mobile software fully unlocked. It doesnt matter if your device is paid off or not. You are bypassing the 40 day wait for a paid off device to SIM unlock!
This is a high level overview for someone that wants quick info and links. All of the info is on XDA but scattered in various threads. I found bits and pieces here and there in those threads so I decided to make a dedicated T-Mobile thread for any T-Mobile user that needs help with the complete process in one simple thread.
So here goes...
Step 1: Convert device to international ROM and unlock the bootloader. Thanks to @AnonymousTipster for this thread! Follow the steps here: T-Mobile 6T to International Conversion (WITHOUT unlocked bootloader/SIM unlock!) NOTE: You MUST use version 9.0.11 to unlock the bootloader (If you flash a newer version make sure you use the patched exe files). After converting to the International version (and going through the set up process) go to Developer options and select OEM Unlocking and turn it on. Now reboot to bootloader and issue the command "fastboot oem unlock" to unlock the bootloader. You are now on the international ROM with your bootloader unlocked.
Step 2: Root and Recovery: Thanks to @mauronofrio for this thread! Now you can root and install recovery on your device following the steps here: [RECOVERY][3.3.0-2][fajita]Official/Unofficial TWRP recovery for OnePlus 6T (Stable).
Step 3: Unlock the SIM . Thanks to @nika_bego for this thread. Follow the steps here: Guide SIM UNLOCK T-MOBILE version all type of IMEI supported.
---NOTE: At this point you can call it quits and keep device as is which is now both bootloader and SIM unlocked on the international firmware (I recommend updating to the latest beta's) or you can continue on with the guide to return to T-Mobile firmware while maintaining SIM unlock (which will lead to boot loader unlock)...
Step 4: Convert back to T-Mobile Device: Thanks to @Dark Nightmare for this thread. Now use the MSM Tool to revert back to the original T-Mobile firmware from here: [TOOL] T-Mobile OnePlus 6T MSMDownloadTool [Firmware 9.0 v1 & v2] This will RE-LOCK your bootloader but not the SIM. You only need to do this if you want to keep the T-Mobile firmware for the updated RCS app, etc. Once the bootloader is re-locked it will take 7 days to get the unlock token shown in the next step. There will be a few security updates once you flash the original firmware back. I would update before unlocking bootloader.
Step 5: Legit Unlock Bootloader Thank OnePlus for this NOTE: Take all OTA's before unlocking. Once unlocked you will no longer receive OTA Updates. You are now on T-Mobile firmware and SIM unlocked. You can proceed to unlock the bootloader the legit way now. Simply follow the steps here: How to unlock bootloader for OnePlus 6T (T-Mobile edition). NOTE: It does take an entire 7 days for the unlock token.
Thats it, your done! You are now fully unlocked and running t-Mobile version of the software (or moved on to other ROMS all together). You can now have root on the latest T-Mobile ROM or stick with a custom ROM.
Feel free to discuss all things T-Mobile in this thread.
Big thanks to the following people for posting all original work: @AnonymousTipster, @mauronofrio, @nika_bego, @Dark Nightmare
Reserved
@Scott You still on the stock kernel after unlocking everything or have you flashed a custom kernel on it?
the.emilio said:
@Scott You still on the stock kernel after unlocking everything or have you flashed a custom kernel on it?
Click to expand...
Click to collapse
Im running stock kernel.
Scott said:
Im running stock kernel.
Click to expand...
Click to collapse
Cool beans. From a technical standpoint flashing a custom kernel would still be possible right?
the.emilio said:
Cool beans. From a technical standpoint flashing a custom kernel would still be possible right?
Click to expand...
Click to collapse
100%
I just choose to run stock because I want to keep the device as close to stock as possible. I am pretty happy with this phone the way it is out the box. The only reason I rooted was to install AdAway.
the.emilio said:
Cool beans. From a technical standpoint flashing a custom kernel would still be possible right?
Click to expand...
Click to collapse
Custom kernels can be great and all. But the stock ones are still very well optimized overall and this phone is constantly giving me 7-8 hours SOT with both custom kernels and stock. Sure, there's the argument of debloating and lightening. But I think stock provides a decent enough experience that doesn't lose out on much important stuff
Nice work but step 2 isn't required. After giving the fastboot OEM unclock command, let it wipe as normal, then before letting it reboor, force it back to bootloader mode by holding vol up, down, and power till it reboots, then just hold power and volume down and it enters bootloader aka fastboot mode. Then give fastboot erase modemst1 and then fastboot erase modemst2. Then reboot. It is also worth mentioning msm 9.0.12 can be used now as long as u run it with the factory patched exe file from the intl conversion thread that was posted with 9.0.11.. Gets you all up to date, a bit faster. Take anonymous tipsters patched exe and copy to msm 12 directory. FYI,.every kernel and ROM for both the intl op6 and op6t work for our phone. Identical. Pixel experience by markash and treskmod actually run better on the phone than stock oos, with about 9-10 hrs sot. .. one plus dropped the ball on ram MGMT, especially with 8gbs of ram and them not utilizing it. Lastly if u stay on TMO firmware, I have a giant list of hacks I'll put together for the strictly stock users. Build prop edits that should be included to begin with.
Scott said:
Background: I am writing this short guide for people like me that want all the info about the T-Mobile 6T unlock capabilities. When you purchase a T-Mobile branded OP 6T the device will be SIM and Bootloader locked. Many great people here on XDA found ways around the SIM and bootloader lock. I am simply compiling it all here in one simple thread to be a resouce for others looking to do the conversion to an unlocked device.
In this guide you will be directed to the proper resources to SIM and bootloader unlock your T-Mobile 6T and return to T-Mobile software fully unlocked. It doesnt matter if your device is paid off or not. You are bypassing the 40 day wait for a paid off device to sim unlock.
This is a high level overview for someone that wants quick info and links. All of the info is on XDA but scattered in various threads.
Step 1: Convert device to international ROM and unlock the bootloader. Follow the steps here: T-Mobile 6T to International Conversion (WITHOUT unlocked bootloader/SIM unlock!)
Step 2: You will need to root your device with Magisk using TWRP. Follow the steps here: [RECOVERY][3.3.0-2][fajita]Official/Unofficial TWRP recovery for OnePlus 6T (Stable)
Step 3: Unlock the SIM by erasing modemst1 and modemst2. Follow the steps here: Guide SIM UNLOCK T-MOBILE version all type of IMEI supported
Step 4: At this point you can call it quits and keep device as is. Or... You can MSM Tool back to the T-Mobile firmware from here: [TOOL] T-Mobile OnePlus 6T MSMDownloadTool [Firmware 9.0 v1 & v2] This will RE-LOCK your bootloader but not the SIM.
Step 5: You are now on T-Mobile firmware and SIM unlocked. You can proceed to unlock the bootloader the legit way now. Simply follow the steps here: How to unlock bootloader for OnePlus 6T (T-Mobile edition)
. NOTE: It does take an entire 7 days for the unlock token.
Thats it, your done! You are now fully unlocked and running t-Mobile version of the software. You can now have root on the latest T-Mobile ROM with RCS capabilities.
Feel free to discuss all things T-Mobile in this thread.
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Thanks for posting this! Definitely easier to have all info in one place ??
fullofhell said:
Lastly if u stay on TMO firmware, I have a giant list of hacks I'll put together for the strictly stock users. Build prop edits that should be included to begin with.
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Click to collapse
Step two isnt required unless that is all you plan on doing is rooting. This guide just tries to link to the others guides. Just a high level overview.
Also, great idea. Great idea on creating a list of hacks. Definitely post a link to the thread when you create one.
Just followed this. Windows 8 was being a PITA for adb and fastboot so I upgraded it to Windows 10. BUT.. once I fixed the quirks with my laptop these steps went smoothly with no hiccups. Just gotta wait the 7 days now so I can use the Swift themer and make it look the way I like. Let's see how well this works completely stock for a week. When I first got this phone I immediately switched to international so I've never been able to experience the TMO firmware.
Thanks again for sharing this!
the.emilio said:
Just followed this. Windows 8 was being a PITA for adb and fastboot so I upgraded it to Windows 10. BUT.. once I fixed the quirks with my laptop these steps went smoothly with no hiccups. Just gotta wait the 7 days now so I can use the Swift themer and make it look the way I like. Let's see how well this works completely stock for a week. When I first got this phone I immediately switched to international so I've never been able to experience the TMO firmware.
Thanks again for sharing this![/QU
Emilio are you speak Spanish ??? I need some help
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Click to collapse
eapo15 said:
Emilio are you speak Spanish ??? I need some help
Click to expand...
Click to collapse
What is the problem?
eapo15 said:
the.emilio said:
Just followed this. Windows 8 was being a PITA for adb and fastboot so I upgraded it to Windows 10. BUT.. once I fixed the quirks with my laptop these steps went smoothly with no hiccups. Just gotta wait the 7 days now so I can use the Swift themer and make it look the way I like. Let's see how well this works completely stock for a week. When I first got this phone I immediately switched to international so I've never been able to experience the TMO firmware.
Thanks again for sharing this![/QU
Emilio are you speak Spanish ??? I need some help
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Click to collapse
En realidad no, pero tengo Google Translate jaja
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Maybe I'm seeing things.....so even though T-Mobile devices are locked (mainly because you're still paying for the device) you can still get root on the device?
Sent from my ONEPLUS A6013 using Tapatalk
JodyBreeze901 said:
Maybe I'm seeing things.....so even though T-Mobile devices are locked (mainly because you're still paying for the device) you can still get root on the device?
Click to expand...
Click to collapse
U have been able to do that, u can just bypass having to convince customer care to sim unlock it which gives you access to oem unlock which then allows u to flash twrp/ magisk and thus root...this is possible by unlocking the bootloader.
In overview..
Can sim unlock
Can unlock bootloader
Or just flash patched msm and bypass all of this
Can have dual SIM capability
Can run any software op6, op6t intl.
Can get unlock bin to legitimately and fully unlock device without needing TMobile to unlock anything.
JodyBreeze901 said:
Maybe I'm seeing things.....so even though T-Mobile devices are locked (mainly because you're still paying for the device) you can still get root on the device?
Sent from my ONEPLUS A6013 using Tapatalk
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Click to collapse
Yep, just follow the links in the guide and you can unlock a fully locked device and root it.
Oh yeah..... I've been away for way too long.
Sent from my ONEPLUS A6013 using Tapatalk
JodyBreeze901 said:
Oh yeah..... I've been away for way too long.
Sent from my ONEPLUS A6013 using Tapatalk
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Thats why I made this guide for T-Mo users. Not enough T-Mo users know you can unlock and root with the methods listed in this thread and other threads linked to.
Thanks for this guide. Just dropped my OP6 in my pool and need to get another phone asap. Was going to go to a TMO store tomorrow to get the 6T. If I pay for the phone in full and then follow steps 1-4 (I want root) and to leave it unlocked, will it be the same firmware/state as if I purchased from OnePlus directly?
Update: TMO is saying I need to have the phone for 60 before I can unlock it. Is that correct?
Thanks!!!

How do you get the unlock code for bootloader of Nokia 8?

Soo I tried to get the unlock code for nokiadotcom phone sen_int bootloader but it says invalid IMEI
Nokia's official bootloader unlock server has stopped working. You cannot get unlock.key from the Nokia homepage. To be able to unlock the bootloader, you can use Hikari Calyk's paid unlocking service.
Direct bootloader unlock service for eligible Nokia and Sharp Phones
This service is discontinued. To request bootloader unlock, Visit here
hikaricalyx.com
dongvatm said:
Nokia's official bootloader unlock server has stopped working. You cannot get unlock.key from the Nokia homepage. To be able to unlock the bootloader, you can use Hikari Calyk's paid unlocking service.
Direct bootloader unlock service for eligible Nokia and Sharp Phones
This service is discontinued. To request bootloader unlock, Visit here
hikaricalyx.com
Click to expand...
Click to collapse
I've been reading for hours now about how to unlock the Nokia 8 TA-1012 bootloader, now that Nokia's official method is defunct.
Can someone clarify if this service, which seems to be reasonably priced, will lead to me having the actual unlock.key for keeps and, more importantly, will this enable me to unlock critical?
DFK79 said:
I've been reading for hours now about how to unlock the Nokia 8 TA-1012 bootloader, now that Nokia's official method is defunct.
Can someone clarify if this service, which seems to be reasonably priced, will lead to me having the actual unlock.key for keeps and, more importantly, will this enable me to unlock critical?
Click to expand...
Click to collapse
No you will not get the unlock key. Yes it unlocks critical.
DerpSpears said:
No you will not get the unlock key. Yes it unlocks critical.
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Click to collapse
Thanks for taking the time to reply! I'm trying to do this for a relative, so I don't want to screw up along the way. Is there ANY downside to not having the unlock key once the phone is critical unlocked? I'm not planning to relock it or anything, I'm just overwhelmed with the whole Treble thing and making sure I don't miss anything.
DFK79 said:
Thanks for taking the time to reply! I'm trying to do this for a relative, so I don't want to screw up along the way. Is there ANY downside to not having the unlock key once the phone is critical unlocked? I'm not planning to relock it or anything, I'm just overwhelmed with the whole Treble thing and making sure I don't miss anything.
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Click to collapse
I succesfully unlocked the bootloader of my Nokia 8-TA1052 following this guide: https://www.techmesto.com/guide-unlock-bootloader-nokia-android-phones/
bunzo said:
I succesfully unlocked the bootloader of my Nokia 8-TA1052 following this guide: https://www.techmesto.com/guide-unlock-bootloader-nokia-android-phones/
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I've been real busy since I asked about the whole thing but I was planning to follow that exact guide. It unlocks critical, right? From there I install Treble and Custom ROM and theoretically, if it somehow bricks (seen a few people being unlucky) critical unlock will enable me to unbrick?
DFK79 said:
I've been real busy since I asked about the whole thing but I was planning to follow that exact guide. It unlocks critical, right? From there I install Treble and Custom ROM and theoretically, if it somehow bricks (seen a few people being unlucky) critical unlock will enable me to unbrick?
Click to expand...
Click to collapse
Hello, in my case in December 2021 it was the first time I tried it and it went well, you have to strictly follow the instructions (make sure before you start that you have the correct connection with the PC in my case with W10-64b, the telephone connected, recognized, with ADB mode and "Unlock bootloader" activated and the ADB environment and tools running on the PC) and be patient since unlocking the bootloader with the Unlock Tool has 2 stages (the second I think I remember is the "critical unlock") so you have to let it go to the end. Once the bootloader is unlocked, when you restart the phone you will get a message that will always appear when you restart it, warning you that the bootloader is unlocked. Beware that by doing so the phone will be reset to factory settings and all user data will be lost so make sure to make a backup before. At the end of the unlock process you will also be asked if you want to donate through PayPal any amount of money voluntarily to the developers of the Unlock tool/techmesto. In short, the key is to read the instructions very well and follow them exactly. After the unlocking of the bootloader and the installation of the Treble you can now put any custom ROM. I hope the whole process goes well for you.
bunzo said:
Hello, in my case in December 2021 it was the first time I tried it and it went well, you have to strictly follow the instructions (make sure before you start that you have the correct connection with the PC in my case with W10-64b, the telephone connected, recognized, with ADB mode and "Unlock bootloader" activated and the ADB environment and tools running on the PC) and be patient since unlocking the bootloader with the Unlock Tool has 2 stages (the second I think I remember is the "critical unlock") so you have to let it go to the end. Once the bootloader is unlocked, when you restart the phone you will get a message that will always appear when you restart it, warning you that the bootloader is unlocked. Beware that by doing so the phone will be reset to factory settings and all user data will be lost so make sure to make a backup before. At the end of the unlock process you will also be asked if you want to donate through PayPal any amount of money voluntarily to the developers of the Unlock tool/techmesto. In short, the key is to read the instructions very well and follow them exactly. After the unlocking of the bootloader and the installation of the Treble you can now put any custom ROM. I hope the whole process goes well for you.
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Click to collapse
Thank you very much for the detailed advice. If I can bother you for one more thing, there's multiple Treble threads/guides on here and some seem (!) outdated or conflicting. Could you maybe point me to one guide/thread you recommend? I have the Nokia 8 TA-1012 here.
I've flashed and rooted maybe half a dozen phones over the years while always just lurking and reading here but in this case, it seems so much riskier and complicated, so I appreciate any and all advice.
DFK79 said:
Thank you very much for the detailed advice. If I can bother you for one more thing, there's multiple Treble threads/guides on here and some seem (!) outdated or conflicting. Could you maybe point me to one guide/thread you recommend? I have the Nokia 8 TA-1012 here.
I've flashed and rooted maybe half a dozen phones over the years while always just lurking and reading here but in this case, it seems so much riskier and complicated, so I appreciate any and all advice.
Click to expand...
Click to collapse
Hello, I have followed the instructions in this thread: https://forum.xda-developers.com/t/...kia-8-with-project-treble-2019-07-02.3946249/ and I used from downloads (https://github.com/resident-nokia/t-virus/releases) the last stable version: https://github.com/resident-nokia/t-virus/releases/tag/20201108
bunzo said:
Hello, I have followed the instructions in this thread: https://forum.xda-developers.com/t/...kia-8-with-project-treble-2019-07-02.3946249/ and I used from downloads (https://github.com/resident-nokia/t-virus/releases) the last stable version: https://github.com/resident-nokia/t-virus/releases/tag/20201108
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Click to collapse
This is the only one I tried and it works for me, remember to download the revert firmware too (https://github.com/resident-nokia/t-virus/releases/tag/5150-revert) because it posible you will need it.
bunzo said:
This is the only I tried and it works for me, remember to download the revert firmware too (https://github.com/resident-nokia/t-virus/releases/tag/5150-revert) because it posible you will need it.
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Click to collapse
Thanks a lot for all the input, I'll add all this into my notes and read everything diligently before I do anything. Appreciate you taking the time to help me out!

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