[GUIDE] Convert TMO to EU via MSM Tool, no SIM Unlock or Bootloader Unlock needed!
- Thread starter craznazn
- Start date
Tweet the T-Mobile Help page, I was in your same situation with the customer service line until I tweeted the help page explaining that I was a developer and needed a sim unlock. Replies came within minutes and they were super helpful. I only needed to provide the IMEI
nope Hello, thanks for reaching out to T-Force! We are only able to unlock a T-Mobile device if you have an account and the device has usage on the T-Mobile network. Device Unlock Policy
No idea about the stuck on 900E mode.
But the missing about phone info is purely aesthetic and won't impact anything. All the magisk module do is populate it with the correct props, but that is only temporary while magisk is installed.
Hi Team,
I just bought OP 8T from OnePlus directly 2 days back. I wanted to make it sim Unlock ( tried contacting T mobile and OP both attempts were unsuccessful). I came across this xda post. Spent several hours for the phone to get detected in EDL mode ( fixed drivers) flashed EU ROM successfully Was able to see Dual Sim. Tried putting Cricket mobile, not able to see any network. The main intention of the device is to use it in India, Any thoughts on how to proceed further.
Thanks
I just bought OP 8T from OnePlus directly 2 days back. I wanted to make it sim Unlock ( tried contacting T mobile and OP both attempts were unsuccessful). I came across this xda post. Spent several hours for the phone to get detected in EDL mode ( fixed drivers) flashed EU ROM successfully Was able to see Dual Sim. Tried putting Cricket mobile, not able to see any network. The main intention of the device is to use it in India, Any thoughts on how to proceed further.
Thanks
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T-Mobile will only remove the SIM lock on a device for customers that meet their SIM Unlock Policy criteria. More than 40 days use on the network for postpaid and a year of refills for prepaid. You might want to look into a third party unlocking service. The device needs to be on the T-Mobile firmware to remove the SIM lock.
Hi thank you for the reply. I believe that policy is for devices bought from t mobile on contract? This device was bought in full from OP. I was parsing through the comments on this thread, audience reported it worked on at and T or any other GSM carrier. Is this because cricket is CDMA? Currently don't have another major GSM carrier to test out.
The policy is for any T-Mobile device, whether paid in full at the time of purchase or paid monthly through EIP, purchased directly from T-Mobile, the manufacturer, or third party retailer, etc.
The NA, EU, and other firmware for the 8T work on the T-Mobile version. Pretty much everyone knows the device has to be SIM unlocked before flashing, which is mentioned plenty of times in any flashing thread.
i will say that if you are persistent you can get somebody at tmobile to unlock it. it took me nearly 10 times at various times of the day on the tmobile twitter help chat and finally got somebody that asked me for the imei and just unlocked it for me.
Sir do
Sir can you guide why on oneplus 8 tmobile variant dual sim doesn't work even after converting it to global variant even I have changed imei on second slot it detects sim but no signal.*** Use this at your very own risk.
*** You will lose all data
*** Backup your working modem and persist, just in case
*** Read the entire post and follow the steps closely before asking for help. Post all error messages and steps you took. Screenshots and MSM logs will be best.
It's finally here! A MSM tool that will convert your T-Mobile OnePlus8T+5G to EU KB05BA. From here you can local upgrade to any OOS flavor you want. This gives you Local Upgrade option, faster upgrades, open betas, dual SIM, and more! In fact, after conversion, you can unlock the bootloader without the unlock token (still need to be SIM unlocked, but in case you don't want to wait for the unlock token or if OnePlus's website is broken)!
If you are still SIM locked, you lose the Unlock app for when your device becomes unlocked, it's only available in the stock TMO ROM. If you want to go back to TMO ROM at any point, flash back with the TMO MSM: https://forum.xda-developers.com/t/...l-to-restore-your-device-to-oxygenos.4180981/
Steps:
If you run into any MSM tool issues, most likely you have a driver problem. See the FAQ in @Some_Random_Username's post
- Download the MSM Conversion package:
- AFH
MD5: 5ddb543c8a5e7587e0b2ad24d2025e77- Run MsmDownloadTool V4.0.exe (Windows 7 users may need to run the win7 version included)
- Select User type: "Other" and press Next.
- Press "Start". Don't mess with the default settings.
- Put your phone in EDL mode.
or completely turn off your device, hold vol up + vol down and plug in the cable.Code:adb reboot edl- Wait about 5 minutes while it works.
- Done! If you keep the bootloader locked and run it stock, the About Phone page will be missing some fields.
Instructions to Bootloader Unlock a SIM locked device:
Old fastboot method
Fixing the About Phone page
Issues so far (please post if you run into more):
What appears to work:
- None
- 5G
- Dual SIM
- AOD
- Fingerprint sensor
- Wildvine L1
- Local Upgrade
- About screen, if steps are followed above
Hey, I responded to your comment a while ago. I found a different fix that allows bootloader unlock without a sim unlock. There is a tool that can ungrey OEM unlocking option. Go into system options, run the tool, open developer options, and enable OEM unlocking.
32.38 MB file on MEGA
You can do it via "adb shell pm uninstall --user 0 com.qualcomm.qti.uim" command.Hey, I responded to your comment a while ago. I found a different fix that allows bootloader unlock without a sim unlock. There is a tool that can ungrey OEM unlocking option. Go into system options, run the tool, open developer options, and enable OEM unlocking.
32.38 MB file on MEGA
mega.nz
No 3rd party tools needed.
Yeah I know. The tool does exactly that but has a couple other useful gadgets installed. Any idea if I could use this to unlock my Verizon pixel 2xl?
No, you are generally fk'd because you got a verizon device. There was an exploit for a verizon pixel (could've been for the 2), but it's not just an adb command.
Yeah, I would assume. I'm not really even looking to root it or anything because it's so old at this point. I've moved on to my OnePlus 6t, 8t, and 9 for my android modding.
Excuse my ignorance... but, this is the best process to make the 8t T-mobile a global version right...?? It's just that I don't want to be left without a phone since I'm not an expert in this...! 
Thank you
Thank you
It is. The instructions to convert to EU are in the OP. Once you are on the EU firmware, which is what I am personally using on T-Mobile USA. You can use a full image to update to the NA/Global, if you wish, through the Local Update option under System Updates.Excuse my ignorance... but, this is the best process to make the 8t T-mobile a global version right...?? It's just that I don't want to be left without a phone since I'm not an expert in this...!
You will more than likely want to have your device permanently SIM Unlocked before flashing though. You can only SIM Unlock the T-Mobile device using the T-Mobile firmware.
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This is one shady looking app lol, but at least the source seems legit enough. I did run it and it seems successful, going from OOS12 KB2005_11_C.16 to OOS11 11.0.11.11.KB05AA. It forced a wipe like other downgrade flashes, so be careful if you decide to use it.
OTOH, dual SIM works again.1
Because US carriers force OnePlus to add bullshit and remove features. One of the features removed is the "local upgrade" option in software updates where you can specify your own OTA, so regular OTAs you end up taking must be the TMO firmware.
Furthermore, the bootloader is locked down without an unlock key that you must jump through hoops and wait 7 days for. Don't forget the device is released with UICC/SIM lock as well.1
No, the MSM will take the manifest.xml in the .ops will check params on your device against it, and if the project or model tgt doesn't match, it will not work. The MSM executable itself doesn't actually change between the various models, just the .ops file1
Yes, the ops file is modified to allow the conversion. I have not tested OOS12 while I had the 8T, because I went to AOSP almost immediately after testing conversion and dual SIM.
Edit: I guess I can test it, gotta go find it in my cell phone bin
1
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 -
21*** Use this at your very own risk.
*** You will lose all data
*** Backup your working modem and persist, just in case
*** Read the entire post and follow the steps closely before asking for help. Post all error messages and steps you took. Screenshots and MSM logs will be best.
!!! I have officially retired my 8T, and can no longer provide additional support on this device !!!
It's finally here! A MSM tool that will convert your T-Mobile OnePlus8T+5G to EU KB05BA. From here you can local upgrade to any OOS flavor you want. This gives you Local Upgrade option, faster upgrades, open betas, dual SIM, and more! In fact, after conversion, you can unlock the bootloader without the unlock token (still need to be SIM unlocked, but in case you don't want to wait for the unlock token or if OnePlus's website is broken)!
If you are still SIM locked, you lose the Unlock app for when your device becomes unlocked, it's only available in the stock TMO ROM. If you want to go back to TMO ROM at any point, flash back with the TMO MSM: https://forum.xda-developers.com/t/...l-to-restore-your-device-to-oxygenos.4180981/
Steps:
- Download the MSM Conversion package:
- AFH
MD5: 5ddb543c8a5e7587e0b2ad24d2025e77
- AFH
- Run MsmDownloadTool V4.0.exe (Windows 7 users may need to run the win7 version included)
- Select User type: "Other" and press Next.
- Press "Start". Don't mess with the default settings.
- Put your phone in EDL mode.
or completely turn off your device, hold vol up + vol down and plug in the cable.Code:
adb reboot edl - Wait about 5 minutes while it works.
- Done! If you keep the bootloader locked and run it stock, the About Phone page will be missing some fields.
Instructions to Bootloader Unlock a SIM locked device:
Old fastboot method
Fixing the About Phone page
Issues so far (please post if you run into more):
- In OOS11, "About phone" page does not work properly.
- Use the magisk module above to fix it.
- In OOS12, Dual SIM is not supported.
- Dual SIM works fine in A12 Custom ROM after conversion, use my enable_dsds module
6I'm glad that the global version is working for everybody!!! For my next trick I'll be trying to mod the MSM Tool for a straight conversation without the need to unlock, stay tuned. I'm going to be needing testers let me know if you're interested.4Thank you for all the people willing to participate. I will keep everybody posted on my progress!! - Download the MSM Conversion package:
