[OnePlus 7T Guides, News, & Discussion] clsA:
Hi I just wanted to mention that this does work to convert a T-mobile to Global

The Guide here >https://xdaforums.com/oneplus-7t/how-to/guide-t-mobile-brand-conversion-to-t4019495

even redirects you to this page for the Rom download.

I flashed 10.0.11-GLOBAL-OnePlus7TOxygen_14.O.13_OTA_013_all_2005192145_cc5bf09c02-FASTBOOT.zip

Setup the phone and Just to be safe I did a local update to Beta 5 and the phone works fine as expected.

Not sure why the first page says you can't use these with a converted phone.

C:\ADB>C:\ADB\flash-all.bat

Do you want to wipe all the data ( Reccomended )[Y/N]?y

Erasing 'userdata' OKAY [ 0.234s]

mke2fs 1.44.4 (18-Aug-2018)

Creating filesystem with 25477509 4k blocks and 6373376 inodes

Filesystem UUID: 9a9f03c4-bd77-11ea-942d-2d1486a79440

Superblock backups stored on blocks:

32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,

4096000, 7962624, 11239424, 20480000, 23887872

Allocating group tables: done

Writing inode tables: done

Creating journal (131072 blocks): done

Writing superblocks and filesystem accounting information: done

Sending 'userdata' (4616 KB) OKAY [ 0.104s]

Writing 'userdata' OKAY [ 0.003s]

Erasing 'metadata' OKAY [ 0.007s]

Erase successful, but not automatically formatting.

File system type raw not supported.

Finished. Total time: 1.047s

Sending 'boot_b' (98304 KB) OKAY [ 2.101s]

Writing 'boot_b' OKAY [ 0.395s]

Finished. Total time: 2.628s

Sending 'dtbo' (16384 KB) OKAY [ 0.355s]

Writing 'dtbo' OKAY [ 0.069s]

Finished. Total time: 0.468s

Sending 'modem_b' (165396 KB) OKAY [ 3.561s]

Writing 'modem_b' OKAY [ 0.779s]

Finished. Total time: 4.559s

Sending 'reserve' (250136 KB) OKAY [ 5.357s]

Writing 'reserve' FAILED (remote: '(reserve_b) No such partition')

fastboot: error: Command failed

Sending 'recovery' (98304 KB) OKAY [ 2.109s]

Writing 'recovery' OKAY [ 0.389s]

Finished. Total time: 2.626s

Sending 'vbmeta' (8 KB) OKAY [ 0.011s]

Writing 'vbmeta' OKAY [ 0.003s]

Finished. Total time: 0.035s

Sending 'vbmeta_system' (4 KB) OKAY [ 0.010s]

Writing 'vbmeta_system' OKAY [ 0.003s]

Finished. Total time: 0.034s

Rebooting into fastboot OKAY [ 0.003s]

< waiting for any device >

Finished. Total time: 8.625s

Sending 'abl_b' (1164 KB) OKAY [ 0.027s]

Writing 'abl_b' OKAY [ 0.013s]

Finished. Total time: 0.058s

Sending 'aop_b' (200 KB) OKAY [ 0.005s]

Writing 'aop_b' OKAY [ 0.007s]

Finished. Total time: 0.024s

Sending 'bluetooth_b' (828 KB) OKAY [ 0.019s]

Writing 'bluetooth_b' OKAY [ 0.010s]

Finished. Total time: 0.044s

Sending 'cmnlib_b' (384 KB) OKAY [ 0.008s]

Writing 'cmnlib_b' OKAY [ 0.008s]

Finished. Total time: 0.030s

Sending 'cmnlib64_b' (500 KB) OKAY [ 0.012s]

Writing 'cmnlib64_b' OKAY [ 0.009s]

Finished. Total time: 0.034s

Sending 'devcfg_b' (52 KB) OKAY [ 0.002s]

Writing 'devcfg_b' OKAY [ 0.005s]

Finished. Total time: 0.018s

Sending 'dsp_b' (65536 KB) OKAY [ 1.475s]

Writing 'dsp_b' OKAY [ 0.399s]

Finished. Total time: 1.957s

Sending 'hyp_b' (480 KB) OKAY [ 0.012s]

Writing 'hyp_b' OKAY [ 0.009s]

Finished. Total time: 0.034s

Sending 'imagefv_b' (20 KB) OKAY [ 0.001s]

Writing 'imagefv_b' OKAY [ 0.006s]

Finished. Total time: 0.018s

Sending 'keymaster_b' (248 KB) OKAY [ 0.006s]

Writing 'keymaster_b' OKAY [ 0.008s]

Finished. Total time: 0.026s

Sending 'LOGO_b' (6540 KB) OKAY [ 0.153s]

Writing 'LOGO_b' OKAY [ 0.049s]

Finished. Total time: 0.225s

Sending 'multiimgoem_b' (16 KB) OKAY [ 0.001s]

Writing 'multiimgoem_b' OKAY [ 0.005s]

Finished. Total time: 0.017s

Resizing 'odm_b' OKAY [ 0.006s]

Sending 'odm_b' (912 KB) OKAY [ 0.021s]

Writing 'odm_b' OKAY [ 0.272s]

Finished. Total time: 0.318s

Sending 'oem_stanvbk' (2480 KB) OKAY [ 0.057s]

Writing 'oem_stanvbk' OKAY [ 0.021s]

Finished. Total time: 0.095s

Invalid sparse file format at header magic

Sending sparse 'opproduct_b' 1/1 (391796 KB) OKAY [ 8.957s]

Writing 'opproduct_b' OKAY [ 3.207s]

Finished. Total time: 13.755s

Sending 'qupfw_b' (72 KB) OKAY [ 0.003s]

Writing 'qupfw_b' OKAY [ 0.002s]

Finished. Total time: 0.016s

Sending 'storsec_b' (24 KB) OKAY [ 0.001s]

Writing 'storsec_b' OKAY [ 0.002s]

Finished. Total time: 0.013s

Sending 'tz_b' (3092 KB) OKAY [ 0.070s]

Writing 'tz_b' OKAY [ 0.030s]

Finished. Total time: 0.113s

Sending 'uefisecapp_b' (124 KB) OKAY [ 0.004s]

Writing 'uefisecapp_b' OKAY [ 0.006s]

Finished. Total time: 0.021s

Sending 'xbl_b' (3120 KB) OKAY [ 0.072s]

Writing 'xbl_b' OKAY [ 0.081s]

Finished. Total time: 0.168s

Sending 'xbl_config_b' (124 KB) OKAY [ 0.004s]

Writing 'xbl_config_b' OKAY [ 0.010s]

Finished. Total time: 0.024s

Invalid sparse file format at header magic

Resizing 'system_b' OKAY [ 0.005s]

Sending sparse 'system_b' 1/5 (523128 KB) OKAY [ 11.952s]

Writing 'system_b' OKAY [ 3.143s]

Sending sparse 'system_b' 2/5 (523140 KB) OKAY [ 11.954s]

Writing 'system_b' OKAY [ 3.151s]

Sending sparse 'system_b' 3/5 (523636 KB) OKAY [ 11.988s]

Writing 'system_b' OKAY [ 3.095s]

Sending sparse 'system_b' 4/5 (524256 KB) OKAY [ 11.980s]

Writing 'system_b' OKAY [ 3.154s]

Sending sparse 'system_b' 5/5 (210168 KB) OKAY [ 4.813s]

Writing 'system_b' OKAY [ 1.471s]

Finished. Total time: 74.020s

Invalid sparse file format at header magic

Resizing 'vendor_b' OKAY [ 0.006s]

Sending sparse 'vendor_b' 1/2 (523681 KB) OKAY [ 11.972s]

Writing 'vendor_b' OKAY [ 3.140s]

Sending sparse 'vendor_b' 2/2 (423560 KB) OKAY [ 9.685s]

Writing 'vendor_b' OKAY [ 2.639s]

Finished. Total time: 30.412s

Invalid sparse file format at header magic

Resizing 'product_b' OKAY [ 0.005s]

Sending sparse 'product_b' 1/3 (523620 KB) OKAY [ 11.963s]

Writing 'product_b' OKAY [ 3.143s]

Sending sparse 'product_b' 2/3 (523628 KB) OKAY [ 11.952s]

Writing 'product_b' OKAY [ 3.151s]

Sending sparse 'product_b' 3/3 (238952 KB) OKAY [ 5.467s]

Writing 'product_b' OKAY [ 1.617s]

Finished. Total time: 41.395s

Rebooting OKAY [ 0.000s]

Finished. Total time: 0.003s

Press any key to continue . . .