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Alldocube iPlay 8T (T802)

Alldocube iPlay 8T (T802)

gemiller
gemiller
gemiller
Junior Member
19
12-05-2021, 03:13 AM
#17
More progress. Magisk Manager updated my boot.img to magisk_patched-22100_Mj9m3.img

Extract the public key from rsa4096_vbmeta.pem, reconstruct vbmeta_custom.img to use it to sign boot.img

Code:

avbtool extract_public_key --key rsa4096_vbmeta.pem --output rsa4096_vbmeta.pub

avbtool make_vbmeta_image \
          --output vbmeta_custom.img \
          --padding_size 16384 \
          --key ../rsa4096_vbmeta.pem --algorithm SHA256_RSA4096 --flag 0 \
          --chain_partition boot:1:../rsa4096_vbmeta.pub \
          --chain_partition dtbo:9:dtbo.pub \
          --chain_partition recovery:2:recovery.pub \
          --chain_partition socko:10:socko.pub \
          --chain_partition odmko:11:odmko.pub \
          --chain_partition vbmeta_system:3:vbmeta_system.pub \
          --chain_partition vbmeta_vendor:4:vbmeta_vendor.pub \
          --chain_partition l_modem:5:l_modem.pub \
          --chain_partition l_ldsp:6:l_ldsp.pub \
          --chain_partition l_gdsp:7:l_gdsp.pub \
          --chain_partition pm_sys:8:pm_sys.pub
        python ../vbmeta_pad_9/vbmeta_pad.py

Sign the magisk boot:

Code:

cp magisk_patched-22100_Mj9m3.img boot-sign.img
avbtool add_hash_footer --image boot-sign.img \
          --partition_name boot --partition_size 36700160 \
          --key ../rsa4096_vbmeta.pem --algorithm SHA256_RSA4096

Then flash with fastboot:

Code:

#  fastboot --disable-verity  --disable-verification --skip-reboot  flash   vbmeta  vbmeta_custom.img
target reported max download size of 536870912 bytes
Sending 'vbmeta' (1024 KB)...
OKAY [  0.037s]
Writing 'vbmeta'...
OKAY [  0.018s]
Finished. Total time: 0.063s

#  fastboot flash   boot boot-sign.img
target reported max download size of 536870912 bytes
Sending 'boot' (35840 KB)...
OKAY [  1.236s]
Writing 'boot'...
OKAY [  0.365s]
Finished. Total time: 1.606s

It reboots fine, Magisk Manager says I am rooted!

AdAway starts to work in root mode! but fails with "Failed to sync. Not enough Space."
That was fixed by setting "Systemless hosts" in Magisk Manager.

Just one small problem, Root Checker does not think I am rooted? But since AdAway is happy, I don't really care.

Messages In This Thread
Alldocube iPlay 8T (T802) - by gemiller - 30-04-2021, 03:30 AM
RE: Alldocube iPlay 8T (T802) - by X3non - 30-04-2021, 09:57 AM
RE: Alldocube iPlay 8T (T802) - by gemiller - 03-05-2021, 10:03 PM
RE: Alldocube iPlay 8T (T802) - by gemiller - 30-04-2021, 10:30 PM
RE: Alldocube iPlay 8T (T802) - by gemiller - 04-05-2021, 05:00 AM
RE: Alldocube iPlay 8T (T802) - by hovatek - 04-05-2021, 04:32 PM
RE: Alldocube iPlay 8T (T802) - by gemiller - 04-05-2021, 07:15 PM
RE: Alldocube iPlay 8T (T802) - by gemiller - 05-05-2021, 06:25 PM
RE: Alldocube iPlay 8T (T802) - by X3non - 05-05-2021, 10:26 AM
RE: Alldocube iPlay 8T (T802) - by X3non - 06-05-2021, 10:10 AM
RE: Alldocube iPlay 8T (T802) - by gemiller - 08-05-2021, 03:31 AM
RE: Alldocube iPlay 8T (T802) - by X3non - 08-05-2021, 11:01 AM
RE: Alldocube iPlay 8T (T802) - by gemiller - 10-05-2021, 11:24 PM
RE: Alldocube iPlay 8T (T802) - by X3non - 11-05-2021, 11:13 AM
RE: Alldocube iPlay 8T (T802) - by gemiller - 11-05-2021, 07:11 PM
RE: Alldocube iPlay 8T (T802) - by gemiller - 12-05-2021, 02:02 AM
RE: Alldocube iPlay 8T (T802) - by gemiller - 12-05-2021, 03:13 AM
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