[OnePlus 8T Questions & Answers] juwaisri:
First of all everything was great rooted OOS 11 after I upgrade to OOS 12 I don't know what went wrong I lost the root and every time I tired to root the devices I stock in a bootloop I tired all the methods I know to root the device but nothing was working.

I didn't use MSM tools yet.

I have all my data and everything but I want to root the devices until I dig a little deep adb shell and notice something is not right and need to be fix

$ getprop ro.product.model
KB2003

$ getprop ro.build.version.ota
KB2003_11.C.88_8880_202205180001

$ getprop ro.boot.ddr_type

$ df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/block/dm-15 615224 615224 0 100% /
tmpfs 5881520 1876 5879644 1% /dev
tmpfs 5881520 4 5881516 1% /mnt
/dev/block/dm-16 922136 922136 0 100% /system_ext
/dev/block/dm-17 13020 12976 0 100% /product
overlay-overlay 2576 2576 0 100% /product/app
overlay-overlay 2576 2576 0 100% /product/priv-app
overlay-overlay 2576 2576 0 100% /product/lib64
overlay-overlay 2576 2576 0 100% /product/lib
overlay-overlay 2576 2576 0 100% /product/overlay
/dev/block/dm-18 920168 920168 0 100% /vendor
/dev/block/dm-19 184692 184692 0 100% /odm
/dev/block/dm-20 367752 367752 0 100% /my_product
/dev/block/dm-21 232 96 132 43% /my_engineering
/dev/block/dm-22 4 4 0 100% /my_company
/dev/block/dm-23 4 4 0 100% /my_carrier
/dev/block/dm-24 2576 2576 0 100% /my_region
/dev/block/dm-25 684348 684348 0 100% /my_heytap
/dev/block/dm-26 694004 694004 0 100% /my_stock
/dev/block/dm-27 8 8 0 100% /my_preload
/dev/block/dm-28 598468 598468 0 100% /my_bigball
/dev/block/dm-29 256 256 0 100% /my_manifest
tmpfs 5881520 44 5881476 1% /apex
/dev/block/dm-30 235358060 132536964 102690024 57% /data
/dev/block/loop6 2088 2060 0 100% /apex/com.android.appsearch@300000000
/dev/block/loop5 232 88 140 39% /apex/com.android.apex.cts.shim@1
/dev/block/loop7 5996 5968 0 100% /apex/com.android.wifi@319999900
/dev/block/loop8 35916 35884 0 100% /apex/com.android.i18n@1
/dev/block/loop11 41156 41124 0 100% /apex/com.android.vndk.v31@1
/dev/block/dm-34 4940 4912 0 100% /apex/com.android.conscrypt@310911000
/dev/block/dm-32 6176 6148 0 100% /apex/com.android.extservices@311713010
ssion@311714010
/dev/block/loop16 110896 110868 0 100% /apex/com.android.vndk.v30@1
/dev/block/loop15 8360 8324 0 100% /apex/com.android.runtime@1
/dev/block/dm-31 63488 63452 0 100% /apex/com.android.art@311713000
/dev/block/dm-35 824 796 12 99% /apex/com.android.tzdata@311312000
/dev/block/dm-36 232 152 76 67% /apex/com.android.scheduling@310733000
/dev/block/dm-37 1856 1828 0 100% /apex/com.android.os.statsd@311510000
/dev/block/dm-38 6508 6476 0 100% /apex/com.android.media@311710000
/dev/block/dm-39 8688 8660 0 100% /apex/com.android.mediaprovider@311723020
/dev/block/dm-41 18940 18912 0 100% /apex/com.android.media.swcodec@311710000
/dev/block/dm-40 6972 6944 0 100% /apex/com.android.adbd@311711002
/dev/block/dm-42 7996 7968 0 100% /apex/com.android.neuralnetworks@311610000
/dev/block/loop27 1672 1644 0 100% /apex/com.google.mainline.primary.libs@311323000
/dev/block/dm-43 11916 11888 0 100% /apex/com.android.cellbroadcast@311714040
/dev/block/dm-44 732 704 16 98% /apex/com.android.ipsec@311710010
/dev/block/dm-45 4856 4828 0 100% /apex/com.android.tethering@311714030
/dev/block/dm-46 1676 1648 0 100% /apex/com.google.mainline.primary.libs@311729000
/dev/block/dm-47 3824 3796 0 100% /apex/com.android.resolv@311710010
/dev/block/dm-48 704 676 16 98% /apex/com.android.sdkext@311710000
/dev/fuse 235358060 132536964 102690024 57% /storage/emulated