[Transformer TF300T Q&A, Help & Troubleshooting] grlks:
I don't know if that is the right forum.

I have compaered the new bootloaders for the different countrys on my tf300t with the old bootloaders.

My tab is UnLocked.

I can switch between bootloaders (dd if=blob of=/dev/block/mmcblk0p4) but not apply changes (I could not change "The device is UnLock" to "I have changed that")

I have unpack different blob files.

There seems to be an checksum in the bootloader for all countrys the same. On the end of all blob.EBT files is random data.

Does anybody know the checksums (It seemed to be AES and RSA)?

Here I compared the outputs of hexdump:

< 00089ea0 72 65 6c 65 61 73 65 64 20 62 79 20 22 54 57 5f |released by "TW_|
---
> 00089ea0 72 65 6c 65 61 73 65 64 20 62 79 20 22 57 57 5f |released by "WW_|
35301c35301
< 0008a260 39 20 32 30 31 32 00 31 35 3a 35 33 3a 34 33 00 |9 2012.15:53:43.|
---
> 0008a260 39 20 32 30 31 32 00 31 35 3a 35 35 3a 33 37 00 |9 2012.15:55:37.|
83949,83965c83949,83965
< 0017c730 01 00 00 00 80 00 00 00 6f 3c 4e 07 4c 66 4e d4 |........o<N.LfN.|
< 0017c740 ed c8 6e 27 15 33 b4 d8 2b 5f e4 b1 ea b0 96 ce |..n'.3..+_......|
< 0017c750 7b 8f 35 8d 50 d6 3f 99 12 6f fb 0f 24 3d 90 4d |{.5.P.?..o..$=.M|
< 0017c760 91 74 4c b8 41 e8 a2 be 73 d0 f0 34 1a be d4 91 |.tL.A...s..4....|
< 0017c770 4d 22 2b 52 13 a6 04 d4 11 0e 08 da 59 17 ba 53 |M"+R........Y..S|
< 0017c780 38 6a 60 2d eb c0 10 94 1a 9e 85 9d 57 86 23 68 |8j`-........W.#h|
< 0017c790 de 67 92 b5 ec 6d 55 6f cd 16 5d 0e 4e dd da c8 |.g...mUo..].N...|
< 0017c7a0 2b 81 03 e8 1a 52 a7 ee 7f 94 f7 ba b3 fb 10 39 |+....R.........9|
< 0017c7b0 e2 be 3e 2b 31 50 d0 8f a3 14 2c 13 0d e2 c7 0d |..>+1P....,.....|
< 0017c7c0 6f 0a 12 0e 4e 10 71 87 f0 ad 19 e5 aa 01 72 d9 |o...N.q.......r.|
< 0017c7d0 c2 07 46 1b 56 08 58 4d e5 a9 89 27 c2 77 4c 9b |..F.V.XM...'.wL.|
< 0017c7e0 53 8c 59 21 9d 6e 3d 1e cb bd 63 e0 f4 ac cb af |S.Y!.n=...c.....|
< 0017c7f0 8f c3 88 6b 27 63 21 57 92 62 f4 05 28 3b 41 f0 |...k'c!W.b..(;A.|
< 0017c800 f6 d4 cb d1 5c c8 96 ea 70 97 bd f0 d7 e3 5c 7a |....\...p.....\z|
< 0017c810 f1 59 46 ed 08 3e 94 2a 95 f1 11 41 d9 f7 b1 4a |.YF..>.*...A...J|
< 0017c820 9d dc 29 5e d8 9d ce 5f a3 41 f7 36 08 bb d2 71 |..)^..._.A.6...q|
< 0017c830 01 0d 33 cc d8 43 51 56 21 23 21 23 21 |..3..CQV!#!#!|
---
> 0017c730 01 00 00 00 80 00 00 00 53 b3 25 d8 9d 9b 24 84 |........S.%...$.|
> 0017c740 b1 82 46 82 2b bb e9 04 d5 cc 24 6c 6d ab f4 23 |..F.+.....$lm..#|
> 0017c750 05 bf 9b a2 3d 2f 94 21 74 40 f8 57 bb d6 90 e7 |....=/.!t@.W....|
> 0017c760 93 51 96 3a 0c 95 00 ca 97 b2 80 80 6a d3 37 bc |.Q.:........j.7.|
> 0017c770 be d6 1e 1b 2e 28 18 de a8 b2 4a 84 43 be b2 31 |.....(....J.C..1|
> 0017c780 d8 04 b5 ff bd c6 27 e5 37 73 ed 16 c7 66 3a 53 |......'.7s...f:S|
> 0017c790 b9 1d bc 39 32 35 b7 39 c5 cb ec 5a a5 cb b3 6a |...925.9...Z...j|
> 0017c7a0 b4 f6 25 40 15 5e 79 07 4b 12 4f 17 3c 5c bc 58 |..%@.^y.K.O.<\.X|
> 0017c7b0 8c 8e 19 31 2a 39 2d 44 00 b9 be af 6d 1b c4 61 |...1*9-D....m..a|
> 0017c7c0 87 65 5e ee 79 c7 ba 60 0b 97 ac 12 32 5e 1c 98 |.e^.y..`....2^..|
> 0017c7d0 a3 96 16 80 3b 85 41 84 11 1f 2f 81 92 12 ac 59 |....;.A.../....Y|
> 0017c7e0 60 59 c9 fe a8 c2 67 49 87 9a e8 5b ea f5 06 67 |`Y....gI...[...g|
> 0017c7f0 86 8d 1e 5e 86 f6 ad 44 7e 33 e8 00 6d 57 d5 ca |...^...D~3..mW..|
> 0017c800 8b 5c d3 92 9d d3 bd 38 8e 87 66 3d 58 e9 43 c4 |.\.....8..f=X.C.|
> 0017c810 ba d4 54 b6 3d fd e1 97 4d 21 cd 31 e8 2a 33 ba |..T.=...M!.1.*3.|
> 0017c820 9b a1 4c b1 31 42 16 d1 5c 84 ba fc 16 cc ec 3b |..L.1B..\......;|
> 0017c830 d8 44 6e 20 fc f4 0c bc 21 23 21 23 21 |.Dn ....!#!#!|