yashsingh1/xdaforums huggingface dataset:
[OnePlus 8T Guides, News, & Discussion] JayTheKid:
"Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)"

How do I fix this? I've tried everything
[OnePlus 8T Guides, News, & Discussion] jcsww:
Disable Driver signing.
[OnePlus 8T Guides, News, & Discussion] JayTheKid:
I do that and when I reboot it says the same error
[OnePlus 8T Guides, News, & Discussion] Zure:
after converting to EU. If i need to msm in the future would i use tmobile files cause my phone is orignally kb2007 or would i use EU msm files for KB2005?
[OnePlus 8T Guides, News, & Discussion] JayTheKid:
my 5g is horribly slow after converting, did I do something wrong
[OnePlus 8T Guides, News, & Discussion] craznazn:
Doubt it. OOS11 or 12? Try going to Global instead of EU and see if it helps.

You can use tmo's MSM to go back to stock, or the conversion MSM to EU. From EU you can go to any other variant other than tmo.
[OnePlus 8T Guides, News, & Discussion] JayTheKid:
Oos11 but after local upgrading to latest global it's working fine.

Also question, I installed your magisk module to fix the about phone but it's saying 2003 phone model. Anyway to change it to say 2005? I know it's trivial
[OnePlus 8T Guides, News, & Discussion] ITMASTER:
Hi @craznazn I got my T-Mobile 8T today and tried to msm my edited ops from global and getting this error "unsupported target tmo" any idea what can be cause?
[OnePlus 8T Guides, News, & Discussion] craznazn:
Open the zip file and modify system.prop to 2005.

Not sure, check the target section towards the end of the xml but I can't really provide .ops modification support
[OnePlus 8T Guides, News, & Discussion] The Fume:
i had the same issue and i couldnt mess with it to much due to work and needing the phone. i ended up going back with the msm tool then to global again

any advances getting dual sim back working on 12 yet? i was tempted to order a backup phone because i have to be able to get calls on the one i have and cant have it down to long.
[OnePlus 8T Guides, News, & Discussion] robbin_banks:
I keep getting super img to super failed. Any idea why? Edit: NVM switched to usb 3.0 and worked perfectly. Got TMO to EU and upgrading to OOS 12 right now thanks so much for the guide
[OnePlus 8T Guides, News, & Discussion] craznazn:
only way to get dual sim on A12 is to use custom rom
[OnePlus 8T Guides, News, & Discussion] jabe78:
Hello @craznazn, thank you for your diligent work.

Ok. This may be a silly question, I have read thru the entire thread multiple times and cant really find a place that this is addressed. I am downloading the MSM tool linked in the OP and after 5 downloads, the MD5 still doesn't match what is listed. All 5 attempts match each other perfectly, but it is not what he has written it should be. Is this ok to use or what is my problem. I have used, Firefox, Chrome, and Edge browsers to download. Also, it downloads from Adroidfilehost; another question... Does anything for OnePlus 8T, work for the 8T+5G (KB2007)? I've had this device now for a couple months, and coming straight from Apple for the last 7 years, I haven't quite figured out the naming scheme of Oneplus yet or what is compatible with what when it comes to flashing.

Thanks in advance.
[OnePlus 8T Guides, News, & Discussion] jcsww:
It's the same device essentially. The only differences are the bands supported, which don't change when cross-flashing and that the KB2007 has dual-SIM disabled in the firmware but is enabled after flashing to a non-KB2007 firmware. The KB2007 only has a single IMEI, so when dual-SIM is enabled, both SIM's have the same IMEI.
[OnePlus 8T Guides, News, & Discussion] jabe78:
Well I don't really know what I'm doing wrong.

I have the 8t+5G (KB2007), Sim unlocked, OEM Toggled but no Token yet so Bootloader locked.

I have downloaded umpteen times, I've updated my Quallcom drivers and it is recognized instead of displayed as bulk in Device Managers. I have the latest ADB and Fastboot tools.

All I get when I run and start the MSM tool is Com3, and waiting for device indefinitely. It isn't connecting. Any advice or ideas as to why I can't connect? I'm missing something. I've read this and other threads over multiple time thoroughly.
[OnePlus 8T Guides, News, & Discussion] jcsww:
Enable USB debugging in Developer Options and plug your device in to a USB port. Open the command prompt in Windows and type, adb shell and hit enter. Then type, ADB reboot edl, and press enter. You should already have the MSM Tool open and ready to start before running the adb command to reboot to edl mode.
[OnePlus 8T Guides, News, & Discussion] jabe78:
I'm sorry I didn't include those steps, but I have done those things also. My apologies.

What I mean is, I took those steps also, but I failed to include them in my question. Sorry for any confusion, I have followed everything I could find, and I'm still falling short somewhere.
[OnePlus 8T Guides, News, & Discussion] The Fume:
leave oem lock on when using the msm tool you do not need to disable it. it caused me issues. start the msm toom leave it alone when it says com3. it should be waiting. now on the phone unlplug the usb cable. next on the phone hold volume up AND volume down keep holding them while you plug back in the phone. the msm tool should start going after that
[OnePlus 8T Guides, News, & Discussion] jabe78:
Thanks for the reply. Between that, and using my original cable, it finally worked. Thank You!
[OnePlus 8T Guides, News, & Discussion] The Fume:
no problem glad it worked for you
[OnePlus 8T Guides, News, & Discussion] The Fume:
i went back to 11 after a few days of trying out 12. just to many small things i did not like. of course now my phone on 11 is telling me to upgrade. im hoping they do something about this color os thing i really did not like it very much
[OnePlus 8T Guides, News, & Discussion] mingkee:
I have mine converted from T-Mobile to EU then install global A12 ROM from OnePlus updater.

OEM unlock was not turned on during the process (phone is SIM unlocked)

Now OEM unlock switch is greyed out. What can I do?
[OnePlus 8T Guides, News, & Discussion] craznazn:
Once you are connected to the internet, it should just reenable... If nothing else you can always just reset and go back to OOS11.
[OnePlus 8T Guides, News, & Discussion] mingkee:
This time I managed to run again conversion back to R, and unlock bootloader from there.

Since I obtained the full S ROM, I just update the ROM and keep root
[OnePlus 8T Guides, News, & Discussion] troypulk:
So I was reading on here that the msm tool does not work with linux but someone had linux and wanted to convert their tmo anyway. Someone answered and posted that they didn't need the msm tool and then they added some steps to do and then continue following the OP at I think step 4.

I have been looking for that post all day and can't find it.

Does anyone remember seeing that post? or How do I use the OP to convert my T-Mobile OnePlus 8T KB2007 using linux?

Thanks
[OnePlus 8T Guides, News, & Discussion] craznazn:
Follow the instructions under the "Old fastboot method" in OP

or

Run MSM in a windows vm using vbox or another hypervisor
[OnePlus 8T Guides, News, & Discussion] troypulk:
Thanks, I probably read over it and missed it.
[OnePlus 8T Guides, News, & Discussion] mattwheat:
I've been reading this forum trying to make heads and tails of it. But I guess it I've overlooked it some where. I have a T-Mobile KB2007. I bought it unlocked(network unlocked that is). Is this as simple as the OP instructions say? Just simply download the Tool, boot into EDL, click start on the tool, and sit back and wait for 5 or 10 mins or so?

And BAM, out KB2007 will now be listed as another variant of the 8T? Allowing us to then unlock the bootloader with out the unique code from ONEPLUS? And if so, do we now need to adhere to the rules and flashing methods of the variant it has now changed our phones to? And will this interrupt any cellular or data service on T-Mobile once it's been converted...? Sorry so many questions.
[OnePlus 8T Guides, News, & Discussion] mingkee:
I did it on both old and new, and both work 100% on T-Mobile
[OnePlus 8T Guides, News, & Discussion] mattwheat:
So it is just as simple as plug it in to your PC, boot into EDL, run the MSM Tool, and sit back and wait....? Wow ok.
[OnePlus 8T Guides, News, & Discussion] mattwheat:
its been running now for about 15 mins in this state...

is this normal ?
[OnePlus 8T Guides, News, & Discussion] mingkee:
It looks like it's not properly detected

Try to reboot using adb instead
[OnePlus 8T Guides, News, & Discussion] mattwheat:
still says the same thing ive been giving the command "adb reboot edl" to put it into edl mode can i be on android 12 or do i need to be on 11?
[OnePlus 8T Guides, News, & Discussion] jcsww:
Do you have the correct driver installed for EDL?
[OnePlus 8T Guides, News, & Discussion] mattwheat:
Probably not ill check thanks for yalls help
[OnePlus 8T Guides, News, & Discussion] kevinco1:
I have wanted to convert for a while but just updated to 12 (TMobile-KB2007)...is this process incompatible now because of the upgrade?
[OnePlus 8T Guides, News, & Discussion] jcsww:
No, but converting will take you back to Oxygen OS 11 and then you will need to update again. Android 12 though, breaks dual-SIM on the KB2007 unless you root.
[OnePlus 8T Guides, News, & Discussion] zeropwns:
I have the Tmobile (KB2007), When i go to flash it it gives me a ddr error. When I search the error it explains that there are ddr4 and ddr5 variants of it and there is a option to select what ddr version ........... I cannot find that option for the life of me ... Can anyone link me to something for this ? because i CANNOT stand the atrocious OS12
[OnePlus 8T Guides, News, & Discussion] zeropwns:
THANK YOUUUUUU!!!!!!!!!!!!!
[OnePlus 8T Guides, News, & Discussion] Rootk1t:
https://xdaforums.com/t/msm-tool-unroot-stuck-on-waiting-for-device.4448835/#post-86932521
[OnePlus 8T Guides, News, & Discussion] zeropwns:
IT WORKED, Thank you! I am now on EU
[OnePlus 8T Guides, News, & Discussion] mattwheat:
What are the benefits of being on EU?
[OnePlus 8T Guides, News, & Discussion] mattwheat:
And what variant will be shown in the "about phone"? Like KB2007, KB2005, Etc, Etc....?
[OnePlus 8T Guides, News, & Discussion] quailallstar:
Does wifi calling still work on T-Mobile if converted to the EU firmware?
[OnePlus 8T Guides, News, & Discussion] mingkee:
I installed KB2005 C.11 ROM after bootloader unlocked
[OnePlus 8T Guides, News, & Discussion] jcsww:
Yes.
[OnePlus 8T Guides, News, & Discussion] TheSayaMan:
Can't detect sim after updating to Android 12. I couldn't find a fix anywhere. I am using Verizon with the unlocked T-Mobile. Not sure if that has anything to do with it. I had to MSM back to 11 for now.
[OnePlus 8T Guides, News, & Discussion] jcsww:
Android 12 disables SIM 2. You can reactivate it with a root module. SIM 1 should still work fine.
[OnePlus 8T Guides, News, & Discussion] TheSayaMan:
I tried a magisk module that was posted that detects sim and I have data services now but can't place or receive phone calls.
[OnePlus 8T Guides, News, & Discussion] jllll:
https://xdaforums.com/t/kb2007-on-kb2005-android-12.4429903/

Does this workaround make any sense to you? It somehow involves the official rollback package and then incremental update back to OOS12. But I haven't had a chance to test it yet.
[OnePlus 8T Guides, News, & Discussion] TheSayaMan:
No, first off, that is for the OnePlus 8T, not the Oneplus 9 Pro and that's about losing one of the sim slots, not about not detecting a sim and having no data or phone services.
[OnePlus 8T Guides, News, & Discussion] TheSayaMan:
I would recommend not trying this. This is a warning to anyone who is thinking about it. If you do try it, stay on Android 11. If you update to Android 12, it will not detect your sim and you will not be able to send and receive phone calls, nor have data services. The only thing you will have is text messaging. I have been trying for a week and a half trying to get back to T-Mobile and there are only two modified MSM's that return to stock and neither work for me. Also the magisk data fix doesn't work, so don't even bother trying. You will still only have texts working. It does indeed convert your phone to EU but it will cause problems later. Just a word of warning. As a last resort, I even backed up my persist, param and modems, and used the SMT download option in MSM which wiped my IMEI thinking that maybe I had corruption in the partitions. No big deal because I restored my backup to get everything back but the problem still exists.
[OnePlus 8T Guides, News, & Discussion] jcsww:
Updating to Android 12 works fine for SIM 1 but it does disable SIM 2 on the T-Mobile model. I haven't personally tried rooting to restore the second SIM functionality.
[OnePlus 8T Guides, News, & Discussion] TheSayaMan:
There is no sim 2 on the TMobile model, that's the problem
[OnePlus 8T Guides, News, & Discussion] jcsww:
You didn't specify what SIM slot you were having issues with. If you need dual-SIM, sticking with Android 11 will keep both SIM slots enabled.
[OnePlus 8T Guides, News, & Discussion] TheSayaMan:
I only have one sim slot and it's not detected on Android 12 but it's showing two on the phone. It says no sim even though I have one in. Works perfect on Android 11 so I'll just stick with 11.
[OnePlus 8T Guides, News, & Discussion] jllll:
That is the piece of information that will save other people (like me) weeks of time would have been wasted on this.

Such a shame that OnePlus now tortures the users to this extent just for bowing to carriers. I am returning the phone and won't consider this company till they stop such sh**y behavior.
[OnePlus 8T Guides, News, & Discussion] TheSayaMan:
Ok, I figured it out finally after so much frustration. I used the EU MSM and reflashed then downloaded the Oxygen Updater app and performed all Global local upgrades through the app and everything is working perfectly now. I'm on current Android 12, Global with fully working phone, calls, texts, data. I don't know why doing this instead of just updating through the built in system updater would make any difference at all but it seems to have!!
[OnePlus 8T Guides, News, & Discussion] jcsww:
Partial updates versus full package updates more than likely.
[OnePlus 8T Guides, News, & Discussion] jllll:
Congrats! Do you think it is worth it to stay on OOS11 to maintain VoLTE and Wifi Calling on US carriers? Nevermind if it is not related to you.
[OnePlus 8T Guides, News, & Discussion] TheSayaMan:
I have VoLTE now on 12 just no Wifi calling but I don't need Wifi calling. If that's what you want then stay on 11 but it doesn't matter to me. The other thing I forgot to mention is that to ensure you keep all services, you need to root and install the Magisk data fix module with what I did to fix my issues.
[OnePlus 8T Guides, News, & Discussion] jllll:
Okay thanks for the information. I also tried EU MSM + full local update via oxygen updater to OOS12, and lost connection to the second sim. As you said, root and Magisk data fix module is probably needed. I will keep it simple for now and just stick to OOS11 for a while. But it is very important that you verified that dual VoLTE works in your case.

Update:

EU MSM already brings dual sim/volte/vowifi on t-mobile usa.

System update shows 11.0.13.13.KB05BA the latest stable OOS11 EU firmware. Installed it. Dual sim/volte/vowifi still works. For this purpose, there is no need to flash NA/Global firmware. I will stick with for some time.

The phone reminds me of some good old days of OP5T. I will keep it little longer to see how it goes. Such a pity OnePlus is going downhill now.
[OnePlus 8T Guides, News, & Discussion] craznazn:
You can safely ignore that message.
[OnePlus 8T Guides, News, & Discussion] Thanat0s24:
Yeah I ignored it, but it still didn't work. I will keep tinkering with it, I will figure it out eventually. Thank you for your swift replies though man!

---------- Post added at 05:50 AM ---------- Previous post was at 05:45 AM ----------

Well, I think I am gonna move on from this, I keep getting the error failed no directory found even after making my own bat file. thanks for your work though!
[OnePlus 8T Guides, News, & Discussion] craznazn:
NP, I just want to make sure the guide actually gets the job done lol, it is a WIP. Let me know if you need anything in PMs, I do want to make sure the scripts work for people that use it.

I updated the scripts to check the cwd for files, just in case
[OnePlus 8T Guides, News, & Discussion] awr128:
Are you in fastboot d?
[OnePlus 8T Guides, News, & Discussion] sameog:
Man, after I extracted the payload from the euro build, I then realized that I'm using the euro build to convert. I don't have the boot image from my phone. Will I soft brick?
[OnePlus 8T Guides, News, & Discussion] craznazn:
Red text in OP says you must be familiar with MSM to restore in case of a soft brick, please don't try the method described in this guide if you are unfamiliar. That being said, you need the boot.img from the target variant you are converting to, so the you need the EU boot.img for the EU conversion.
[OnePlus 8T Guides, News, & Discussion] sameog:
Hey there,

Thanks for getting back to me. Yes, I am totally familiar with msm and it has saved my bacon many times over. Then again, I think we all can attest to that.

I saw and downloaded the stock 11.0.3.4.kb05aa boot image. I'm tempted to give it a whirl. If nothing else, MSM back.

See screenshot.
[OnePlus 8T Guides, News, & Discussion] sameog:
Guys, I'm digging around out there. I came across this and downloading it now. OnePlus8TOxygen_15.I.16_OTA_0160_all_2010150110_84be0c.zip

Let me know if I should continue with the download or not? Thanks.
[OnePlus 8T Guides, News, & Discussion] Thanat0s24:
Yes I was in fastbootd
[OnePlus 8T Guides, News, & Discussion] craznazn:
That's the india rom. You can install that instead of EU if you want with the guide.

Let me know if you are trying again and run into the same issues, please post the exact output on your console
[OnePlus 8T Guides, News, & Discussion] sameog:
I extracted the payload.bin (euro build) and used this batch file: convert-tmo. I received a ton of failed messages while in the command prompt console. I have since MSM'ed back to the kebabt (tmobile msm). Am I doing too much? I realize we're dealing with lots of "patchwork" at this point until something sticks.

And yes, I was in the fastbootd. =)

Let me know, please and thanks!
[OnePlus 8T Guides, News, & Discussion] craznazn:
Paste your console output and error messages here
[OnePlus 8T Guides, News, & Discussion] awr128:
I had the same issue with that script, so I used my own, I posted earlier on how to make a batch script.
[OnePlus 8T Guides, News, & Discussion] jwarrior319:
The linus script? If so make sure you use my updated v2 script. You also need to be in fastbootd. Fastbootd is the one with the 2 chinese and 1 english option that you usually go through to get to regular fastboot. It took me awhile to figure that out.
[OnePlus 8T Guides, News, & Discussion] awr128:
It's the windows script that seems to be having issues.
[OnePlus 8T Guides, News, & Discussion] craznazn:
I updated the guide to show what the fastbootd screen should look like

I wish somebody would tell me what is happening with the Windows script that's messing everything up :(
[OnePlus 8T Guides, News, & Discussion] sameog:
Updated script?

Yes, I'm familiar with fastbootd. I used that with a fastboot rom for my former oneplus 8. Fastboot rom worked like a charm.
[OnePlus 8T Guides, News, & Discussion] we_tu_lo:
---------- Post added at 06:22 PM ---------- Previous post was at 05:44 PM ----------

[/COLOR]Nervermind, I set the variables properly.

After flashing, IM confused on step 8

"Reboot into recovery, and wipe everything."

We're in fastbootd at that point, then do we reboot to the OS and then go to Recovery?

"Optional: Reboot into fastboot / bootloader (not fastbootd) and flash magisk_patched_boot for root"

Does the script generate the file? Or do we have to file the other thread making patched a and b images?
[OnePlus 8T Guides, News, & Discussion] craznazn:
One the fastbootd menu, press English -> Advanced -> Reboot to recovery. Skip the OS.

Regarding magisk, the script will not generate it. You will need to grab it yourself from your device, or grab it from the other thread.
[OnePlus 8T Guides, News, & Discussion] we_tu_lo:
I grabbed it, but it doesnt work (it bootloops).

If I follow the other directions, and use the temp twrp, adb wont recognize in twrp.

Otherwise Im on the european version

Nope, still says KB2007, but it flashed the European version and I dont get the t-mobile intro loop

---------- Post added at 08:33 PM ---------- Previous post was at 07:52 PM ----------

I think the issue is I was rooted before, so Ill use the MSM tool now then go back and flash this again.
[OnePlus 8T Guides, News, & Discussion] RawSlugs:
A while ago i switched from TMO to international using the old fastboot method. I noticed i haven't gotten any updates since.

Oxygen updater says I'm not running oxygen. What could be the issue?
[OnePlus 8T Guides, News, & Discussion] nckfrs:
the oem unlock is stil greyed out after uninstall of the file through adb and a restart

any insight
[OnePlus 8T Guides, News, & Discussion] jcsww:
Is your device SIM unlocked?
[OnePlus 8T Guides, News, & Discussion] craznazn:
From that screenshot, it looks like you're still running the TMO firmware
[OnePlus 8T Guides, News, & Discussion] dhustler82:
I live in USA will the 5g work on the eu rom. Any problems with connectivity
[OnePlus 8T Guides, News, & Discussion] TheSayaMan:
Don't do this unless you plan on staying on Android 11. Once you update to 12, you won't have phone service!!! It took me almost two weeks with the help of another member to get me back to T-Mobile stock.
[OnePlus 8T Guides, News, & Discussion] RawSlugs:
i know that im not as i have features that tmo disabled and im missing the tmo bloat.

anyways im on lineage now
[OnePlus 8T Guides, News, & Discussion] jcsww:
5G works if you stay on Android 11. If you MSM Tool to the EU firmware though, then update with a full kb2005 image from Oxygen Updater to the Global/NA via local update. You will have single SIM working on Android 12. If you want dual-SIM, remain on Android 11 or look into root options.
[OnePlus 8T Guides, News, & Discussion] TheSayaMan:
That's not true unless you use the magisk data retain fix but that's useless if you decide to sell the phone.
[OnePlus 8T Guides, News, & Discussion] jcsww:
I can update to Android 12 the way I mentioned with my kb2007 and have single-SIM working without doing anything else. I bought this phone for dual-SIM though. I hate carrying two phones. I have ran my 8T+ 5G on Android 12 for a couple of weeks without issues before deciding I didn't want to root to regain dual-SIM and rolled back to Android 11.
[OnePlus 8T Guides, News, & Discussion] TheSayaMan:
That's because you don't have the T-Mobile model. T-Mobile model doesn't support dual sim and that's where the problem comes in if you convert T-Mobile to EU or Global. When you update to Android 12, it shows dual sims which causes the T-Mobile model to not have phone service.
[OnePlus 8T Guides, News, & Discussion] dhustler82:
Thanks I used msm tool to eu. 4g was almost non existent only 1 bar in my home where I used to get more and network kept going to edge speeds. An update came in over the air wich didn't help much android 11. I used oxygen updater and downloaded the full kb2005 and now I have 4 bars if 4g compared to the 1. I walked outside and got 5g but it was so slow in speed test. 4g seems fine
[OnePlus 8T Guides, News, & Discussion] dhustler82:
Should I relock the bootloader after android 12. All seems to be working fine. T-mobile to eu. I first unlocked then ran msm tool.