[OnePlus 6T  Guides, News, & Discussion] OPTeam:
As OnePlus doesn't always provide download links for all of for their Oxygen OS ROMs & OTA update zips, we mirrored them on AndroidFileHost and put the links in one post so that they're easy to find.

This is not a support thread for issues you may have with Oxygen OS ROMs. If you need help installing or updating, feel free to ask here. If you have any other issues, please ask in another thread.

For the sake of simplicity, only signed flashable (full) zips are listed. These are recovery-flashable zips of the full ROM that won't overwrite your data partition unless mentioned otherwise. They can be flashed via local update in Settings --> System --> System Updates or TWRP recovery.

Signed flashable zips

Android 11:

11.1.2.2: OnePlus6TOxygen_34.J.62_GLO_0620_2111252336

MD5: fb113b6ccf7376a49399f40de9bb3cbe

11.1.1.1: OnePlus6TOxygen_34.J.61_GLO_0610_2109171644

MD5: 892b1fe360501c25206d736fd87349df

11.0.0.0: OnePlus6TOxygen_34.J.60_OTA_0600_all_2108052232

MD5: a8a146310ff108662f98368f41e8d7e0

Android 10:

10.3.12: OnePlus6TOxygen_34.J.55_OTA_055_all_2107132253

MD5: fcba7be36131c4d74c008b2dc27a8262

Mirror: https://androidfilehost.com/?fid=14943124697586371458

10.3.11: OnePlus6TOxygen_34.J.54_OTA_054_all_2105112238

MD5: 58b702514110187ba4dadc91f5dd9e30

Mirror: https://androidfilehost.com/?fid=14943124697586337027

10.3.10: OnePlus6TOxygen_34.J.53_OTA_053_all_2104202232

MD5: 917e54c48ff0163a0aa31568043d923f

Mirror: https://androidfilehost.com/?fid=2188818919693798314

10.3.9: OnePlus6TOxygen_34.J.52_OTA_052_all_2103030004

MD5: 2a0f50f8cc0db2c1f2c7c8cea973e6db

Mirror: https://androidfilehost.com/?fid=2188818919693772534

10.3.8: OnePlus6TOxygen_34.J.50_OTA_050_all_2101210546_ee562c52ade

MD5: 95eba3e90c1b06ccbc839f2ce0deceda

Mirror: https://androidfilehost.com/?fid=17248734326145725841

10.3.7: OnePlus6TOxygen_34.J.49_OTA_049_all_2011161944

MD5: 3d7c020bd0fb67894bc1c23f67c8eb72

Mirror: https://androidfilehost.com/?fid=17248734326145725852

10.3.6: OnePlus6TOxygen_34.J.48_OTA_048_all_2010042240

MD5: ecb9877b0eb71b2926a4b4ef8dedb3d8

Mirror: https://androidfilehost.com/?fid=10763459528675562411

10.3.5: OnePlus6TOxygen_34_OTA_047_all_2007171912

MD5: 483900aba0124d2047c2182d710e2b0d

Mirror: https://androidfilehost.com/?fid=8889791610682904505

10.3.4: OnePlus6TOxygen_34_OTA_046_all_2005052113

MD5: 05763809c88d844bee34a8d767e7021e

Mirror: https://androidfilehost.com/?fid=4349826312261819640

10.3.3: OnePlus6TOxygen_34_OTA_045_all_2004142152

MD5: f20ca79091cfc6c0a680692b0dbc38fa

Mirror: https://androidfilehost.com/?fid=4349826312261784402

10.3.2: OnePlus6TOxygen_34_OTA_044_all_2002220041

MD5: 73ae60ee2ba781a36229b8b6363c0c4c

Mirror: https://androidfilehost.com/?fid=4349826312261737152

10.3.1: OnePlus6TOxygen_34_OTA_043_all_2001151910

MD5: 0652ca5ac8fb83e170700248502a93ad

Mirror: https://androidfilehost.com/?fid=4349826312261709688

10.3.0: OnePlus6TOxygen_34_OTA_042_all_1912142031

MD5: a541a5fd34d1a26fa0f98ea7519f3e27

Mirror: https://androidfilehost.com/?fid=4349826312261679735

10.0.1: OnePlus6TOxygen_34_OTA_041_all_1911142208

MD5: 53cbd7fb9eb944d16ad1c27fccccd317

Mirror: https://androidfilehost.com/?fid=4349826312261653067

10.0: OnePlus6TOxygen_34_OTA_040_all_1910270448

MD5: c2a3d3ba52cfdfc70957ca916bb14099

Mirror: https://androidfilehost.com/?fid=4349826312261611752

Android 9:

9.0.17: OnePlus6TOxygen_34_OTA_024_all_1909112343

MD5: bb129af2e0cdc76e5bd27651ea79ca76

Mirror: https://androidfilehost.com/?fid=4349826312261819701

9.0.16: OnePlus6TOxygen_34_OTA_023_all_1908012014

MD5: e1edf91a74064f7f80aae4468627ebcd

Mirror: https://androidfilehost.com/?fid=6006931924117933210

9.0.15: OnePlus6TOxygen_34_OTA_022_all_1906251222

MD5: 57e517833fa7d9d08ffe930daf2d90bf

Mirror: https://androidfilehost.com/?fid=6006931924117907850

9.0.14: OnePlus6TOxygen_34_OTA_021_all_1905281358

MD5: e89f3f4e716e1865f088cc0b93c35f5a

Mirror: https://androidfilehost.com/?fid=6006931924117908346

9.0.13: OnePlus6TOxygen_34_OTA_020_all_1904032212

MD5: f9dc011cb3c1db8f984ad8995436e6ee

Mirror: https://androidfilehost.com/?fid=1395089523397948135

9.0.12: OnePlus6TOxygen_34_OTA_019_all_1901231347

MD5: 08545381559a8c1acf5886ff9c042a3b

Mirror: https://androidfilehost.com/?fid=1395089523397912413

9.0.11: OnePlus6TOxygen_34_OTA_018_all_1812262016

MD5: bf955e845b1533afdb29b457193725b1

Mirror: https://androidfilehost.com/?fid=1395089523397912411

9.0.10: OnePlus6TOxygen_34_OTA_017_all_1812111237

MD5: 02d03865b970ae02e970601d4f855a5a

Mirror: https://androidfilehost.com/?fid=1395089523397912412

9.0.7: OnePlus6TOxygen_34_OTA_013_all_1811270327

MD5: 3eef55e3bb3ba464035752e469fa92d2

Mirror: https://androidfilehost.com/?fid=6006931924117908789

9.0.6: OnePlus6TOxygen_34_OTA_012_all_1811170308

MD5: 7eebe7b74bd15188b3806e509e4a54a5

Mirror: https://androidfilehost.com/?fid=2188818919693772536

9.0.5: OnePlus6TOxygen_34_OTA_011_all_1811032137

MD5: ef55812889846f16e0ff7efee13f413a

Mirror: https://androidfilehost.com/?fid=2188818919693772541

9.0.4: OnePlus6TOxygen_34_OTA_010_all_1810242132

MD5: 00ffef89cfea1e7255b756cc7f549ee8

Mirror: https://androidfilehost.com/?fid=6006931924117908805

Signed flashable zips (Open Beta)

Android 11:

OB3: OnePlus6TOxygen_41.Y.78_OTA_0780_all_2108052357

MD5: f1d85bc55e55bc20bf914cdf17751e51

OB2: OnePlus6TOxygen_41.Y.77_GLO_0770_all_2107231448

MD5: 07bceefd0cfb2399d0ec72f36df59de2

OB1 Hotfix: OnePlus6TOxygen_41.Y.76_OTA_0760_all_2107130236

MD5: 5488924140af546ab5e7de17e1c2fd72

OB1: OnePlus6TOxygen_41.Y.75_OTA_0750_all_2106301542

MD5: 39ebee8e3d102e51b979d809215f2157

Android 10:

OB6: OnePlus6TOxygen_41_OTA_065_all_2004012104

MD5: dbd4b426dfa9ff74f10f86cdb36d95eb

Mirror: https://androidfilehost.com/?fid=4349826312261763568

OB5: OnePlus6TOxygen_41_OTA_064_all_2002191415

MD5: 8031c081f2efb4102432cf71a357a942

Mirror: https://androidfilehost.com/?fid=4349826312261731157

OB4 (re-release): OnePlus6TOxygen_41_OTA_063_all_2001130800

MD5: e9b66f30202e570c16195ca84aaa1f06

Mirror: https://androidfilehost.com/?fid=4349826312261708388

OB4: OnePlus6TOxygen_41_OTA_063_all_2001032024

MD5: f2384f45affd431f5b7ae12f306e8769

Mirror: https://androidfilehost.com/?fid=4349826312261700974

OB3: OnePlus6TOxygen_41_OTA_062_all_1912110951

MD5: be14ea9a8f8f88c32c05c1342c323787

Mirror: https://androidfilehost.com/?fid=4349826312261679733

OB2: OnePlus6TOxygen_41_OTA_061_all_1911200419

MD5: 5c9fd4746542eb804c5dc4b3d24e9ebe

Mirror: https://androidfilehost.com/?fid=4349826312261650507

OB1: OnePlus6TOxygen_41_OTA_060_all_1910081734

MD5: 7f40cbe314967af185fe93673609deed

Mirror: https://androidfilehost.com/?fid=1899786940962611968

Android 9:

OB17: OnePlus6TOxygen_41_OTA_054_all_1908302053

OB16: OnePlus6TOxygen_41_OTA_052_all_1908071343

OB15: OnePlus6TOxygen_41_OTA_050_all_1907162301

OB14: OnePlus6TOxygen_41_OTA_046_all_1907082134

OB13: OnePlus6TOxygen_41_OTA_044_all_1906211131

OB12: OnePlus6TOxygen_41_OTA_042_all_1906101921

OB11: OnePlus6TOxygen_41_OTA_040_all_1905232342

OB10: OnePlus6TOxygen_41_OTA_038_all_1905131830

OB9: OnePlus6TOxygen_41_OTA_036_all_1904291841

OB8: OnePlus6TOxygen_41_OTA_034_all_1904111013

OB7: OnePlus6TOxygen_41_OTA_032_all_1903251455

OB6: OnePlus6TOxygen_41_OTA_030_all_1903092017

OB5: OnePlus6TOxygen_41_OTA_028_all_1902251820

OB4: OnePlus6TOxygen_41_OTA_026_all_1901280420

OB3: OnePlus6TOxygen_41_OTA_024_all_1901131620

OB2: OnePlus6TOxygen_41_OTA_022_all_1812271744

OB1: OnePlus6TOxygen_41_OTA_020_all_1812140157

Rollback zips

10.3.11: OnePlus6TOxygen_34.J.54_OTA_054_all_2105112238_downgrade_708a3306f3904ad4.zip

MD5: a8564ef900a35363f5012a208c7ebd8d

Mirror: https://androidfilehost.com/?fid=14943124697586369933

10.3.2: OnePlus6TOxygen_34_OTA_044_all_2002220041_downgrade_3e5565c392d047d7.zip

MD5: 89717ea0b84c85f5330790a70ce3b62d

Mirror: https://androidfilehost.com/?fid=4349826312261780270

OB17: OnePlus6TOxygen_41_OTA_054_all_1908302053_fulldowngrade_f4811e96c7ad4b24.zip

MD5: 5afbf844dc5c21a6d1c30f1620efb433

Mirror: https://androidfilehost.com/?fid=2188818919693772598

9.0.4: Fulldowngrade_wipe_18801_181024_2027_user_MP2_release.zip

MD5: 54ede6b7887f295cf8564904693cda34

Mirror: https://androidfilehost.com/?fid=1395089523397961196

Android Q Developer Previews

DP1: OnePlus6TOxygen_34_OTA_001_all_1905032146

MD5: 03dbe0f573f40f31f6e5a7e8f2054757

Mirror: https://androidfilehost.com/?fid=1395089523397961195

DP2: OnePlus6TOxygen_34_OTA_002_all_1905302318

MD5: 2b040e97c0b68ca780091ebad71950e0

Mirror: https://androidfilehost.com/?fid=6006931924117895186

DP3: OnePlus6TOxygen_34_OTA_003_all_1907120039

MD5: dd222f51c24d0ad7e9dca03a8b40b669

Mirror: https://androidfilehost.com/?fid=6006931924117919095

Stock boot-recovery images (will no longer be updated)

9.0.7: OnePlus6TOxygen_34_OTA_013_all_1811270327_boot.img

9.0.6: OnePlus6TOxygen_34_OTA_012_all_1811170308_boot.img

9.0.5: OnePlus6TOxygen_34_OTA_011_all_1811032137_boot.img

9.0.4: OnePlus6TOxygen_34_OTA_010_all_1810242132_boot.img