[OnePlus 7T Guides, News, & Discussion] xxlMVPlxx:
▫️A Desktop or Laptop with Windows OS

▫️OnePlus Type-C Cable

https://xdaforums.com/t/guide-how-t...ficial-usb-drivers-bootloader-driver.4558965/

▫️HD1900 China/Hong Kong🇨🇳

▫️HD1901 India 🇮🇳

▫️HD1903 Europe🇪🇺

▫️HD1905 North America🌎

▫️HD1907 T-Mobile🏩

1▫️Download OxygenOS 10 MSM Tool

https://onepluscommunityserver.com/list/Unbrick_Tools/OnePlus_7T/Global_HD65AA/Q/OnePlus_7T_Global_OxygenOS_10.0.16.zip

2▫️Run MsmDownloadTool V4.0.exe as Administrator.

3▫️Then click on Target select India!

4▫️Now hit Start on the MSM Tool.

5▫️Now put the Phone into EDL Mode👇

Turn the phone off completely! Take your OnePlus Cable plug the the USB side into the PC while leaving the Type C port unplugged from your phone. Now hold vol up & vol down buttons at the same time about 5 secs...while doing that plug the Type C port into your phone immediately❗

6▫️The MSM Tool should now detect your Phone & start the downgrade process to Android 10.

7▫️Setup Android 10 then turn on your phones wifi, download latest (Android 11.0.9.1) flashable zip from here 👉https://gauss-otacostmanual-sg.alla...6/27/95dafea4-82aa-4354-be2f-405091c13c0f.zip then copy it from downloads folder to the Root directory folder of your Android then go to Settings>System>System Updates>Click on the Cogwheel ⚙️>Local Upgrade

(Select your firmware & let the Installation Finish!)

8▫️After installing Latest OxygenOS make sure to boot into Recovery Mode and perform a Hard Reset! Clear cache & erase everything. Congratulations your done! Your OnePlus 7T will boot back up, Now setup device setup & connect back to your wifi & restore your Files/Backup.

1▫️Download OxygenOS 10 MSM Tool

https://onepluscommunityserver.com/list/Unbrick_Tools/OnePlus_7T/EU_HD65BA/Q/OnePlus_7T_EU_OxygenOS_10.0.15.zip

2▫️Run MsmDownloadTool V4.0.exe as Administrator.

3▫️Then click on Target select Europe!

4▫️Now hit Start on the MSM Tool.

5▫️Now put the Phone into EDL Mode👇

Turn the phone off completely! Take your OnePlus Cable plug the the USB side into the PC while leaving the Type C port unplugged from your phone. Now hold vol up & vol down buttons at the same time about 5 secs...while doing that plug the Type C port into your phone immediately❗

6▫️The MSM Tool should now detect your Phone & start the downgrade process to Android 10.

7▫️Setup Android 10 then turn on your phones wifi, download latest (Android 11.0.9.1) flashable zip from here 👉 https://gauss-otacostmanual-sg.alla...6/27/59ac1c8d-7854-4209-b200-e8ff9cc58732.zip then copy it from downloads folder to the Root directory folder of your Android then go to Settings>System>System Updates>Click on the Cogwheel ⚙️>Local Upgrade

8▫️After installing OxygenOS 11.0.9.1 make sure to boot into Recovery Mode and perform a Hard Reset! Clear cache & erase everything. Congratulations your done! Your OnePlus 7T will boot back up, Now setup device setup & connect back to your wifi & restore your Files/Backup.

1▫️Download OxygenOS 10 MSM Tool

https://onepluscommunityserver.com/list/Unbrick_Tools/OnePlus_7T/T-Mobile_HD63CB/Q/OnePlus_7T_T-Mobile_OxygenOS_10.0.13.zip

2▫️Run MsmDownloadTool V4.0.exe as Administrator.

3▫️Then click on Target select TMO!

4▫️Now hit Start on the MSM Tool.

5▫️Now put the Phone into EDL Mode👇

Turn the phone off completely! Take your OnePlus Cable plug the the USB side into the PC while leaving the Type C port unplugged from your phone. Now hold vol up & vol down buttons at the same time about 5 secs...while doing that plug the Type C port into your phone immediately❗

6▫️The MSM Tool should now detect your Phone & start the downgrade process to Android 10.

7▫️Turn on your phones wifi setup Android 10, download latest T-Mobile Firmware (Android 11.0.9.1) 👉Go to Settings>System>System Updates & Check for Updates.

8▫️After installing OxygenOS 11.0.9.1 make sure to boot into Recovery Mode and perform a Hard Reset! Clear cache & erase everything. Congratulations your done! Your OnePlus 7T will boot back up, Now setup device setup & connect back to your wifi & restore your Files/Backup.

1▫️Download OxygenOS 10 MSM Tool

https://onepluscommunityserver.com/list/Unbrick_Tools/OnePlus_7T/Global_HD65AA/Q/OnePlus_7T_Global_OxygenOS_10.0.16.zip

2▫️Run MsmDownloadTool V4.0.exe as Administrator.

3▫️Then click on Target select O2!

4▫️Now hit Start on the MSM Tool.

5▫️Now put the Phone into EDL Mode👇

Turn the phone off completely! Take your OnePlus Cable plug the the USB side into the PC while leaving the Type C port unplugged from your phone. Now hold vol up & vol down buttons at the same time about 5 secs...while doing that plug the Type C port into your phone immediately❗

6▫️The MSM Tool should now detect your Phone & start the downgrade process to Android 10.

7▫️Setup Android 10 then turn on your phones wifi, download latest (Android 11.0.9.1) flashable zip from here 👉https://gauss-otacostmanual-sg.alla...6/27/e18dfda5-a981-43cc-b863-49c203720862.zip then copy it from downloads folder to the Root directory folder of your Android then go to Settings>System>System Updates>Click on the Cogwheel ⚙️>Local Upgrade

8▫️After installing OxygenOS 11.0.9.1 make sure to boot into Recovery Mode and perform a Hard Reset! Clear cache & erase everything. Congratulations your done! Your OnePlus 7T will boot back up, Now setup device setup & connect back to your wifi & restore your Files/Backup.

1▫️Download OxygenOS 10 MSM Tool

https://onepluscommunityserver.com/list/Unbrick_Tools/OnePlus_7T/Global_HD65AA/Q/OnePlus_7T_Global_OxygenOS_10.0.16.zip

2▫️Run MsmDownloadTool V4.0.exe as Administrator.

3▫️Then click on Target select O2!

4▫️Now hit Start in the MSM Tool.

5▫️Now put the Phone into EDL Mode👇

Turn the phone off completely! Take your OnePlus Cable plug the the USB side into the PC while leaving the Type C port unplugged from your phone. Now hold vol up & vol down buttons at the same time about 5 secs...while doing that plug the Type C port into your phone immediately❗

6▫️The MSM Tool should now detect your Phone & start the downgrade process to Android 10.

7▫️Setup Android 10 then turn on your phones wifi, download latest (Android 11.0.9.1) flashable zip from here 👉https://gauss-otacostmanual-sg.alla...6/27/e18dfda5-a981-43cc-b863-49c203720862.zip then copy it from downloads folder to the Root directory folder of your Android then go to Settings>System>System Updates>Click on the Cogwheel ⚙️>Local Upgrade

8▫️After installing OxygenOS 11.0.9.1 make sure to boot into Recovery Mode and perform a Hard Reset! Clear cache & erase everything. Congratulations your done! Your OnePlus 7T will boot back up, Now setup device setup & connect back to your wifi & restore your Files/Backup.