[Tutorial] How to root the Doogee S88 Pro using OEM keys
[Tutorial] How to root the Doogee S88 Pro using OEM keys
03-05-2021, 11:23 AM
(02-05-2021, 10:26 PM)lle-bout Hello!
Where did you find the OEM private key? Did Doogee publish it?
Thank you
the device uses the generic rsa 2048 from google (i presume)
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06-06-2021, 01:41 PM
```
root@xDevAd:/android# ./avbtool
/usr/bin/env: ‘python\r’: No such file or directory
```
dos2unix fixes it though:
```
root@xDevAd:/android# ./avbtool
/usr/bin/env: ‘python\r’: No such file or directory
root@xDevAd:/android# dos2unix avbtool
dos2unix: converting file avbtool to Unix format...
root@xDevAd:/android# ./avbtool
usage: avbtool [-h]
{version,extract_public_key,make_vbmeta_image,add_hash_footer,append_vbmeta_image,add_hashtree_footer,erase_footer,resize_image,info_image,verify_image,set_ab_metadata,make_atx_certificate,make_atx_permanent_attributes,make_atx_metadata,make_atx_unlock_credential}
...
avbtool: error: too few arguments
```
the python interpreter understands \r\n and handles it directly if you run `python avbtool` instead of `./avbtool`, guess that's why nobody noticed it
06-09-2021, 12:08 PM
Error:
File "avbtool", line 411
b = 2L**32
^
SyntaxError: invalid syntax
How to fix?
06-09-2021, 08:49 PM
(06-09-2021, 12:08 PM)doogeehelp I get invalid syntax when running the add_hash_footer CMD.
Error:
File "avbtool", line 411
b = 2L**32
^
SyntaxError: invalid syntax
How to fix?
if you're using the avbtool listed by us, then you must ensure to use python 2
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07-09-2021, 10:14 AM
That's now done. Root was successful.
May I ask whether I could use this process to flash a gsi? Signing the gsi with these keys and then booting?
08-09-2021, 09:52 AM
(07-09-2021, 10:14 AM)doogeehelp That's now done. Root was successful.
May I ask whether I could use this process to flash a gsi? Signing the gsi with these keys and then booting?
i doubt that you need to sign system images, just flash without signing
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08-10-2021, 11:00 AM
09-10-2021, 10:21 AM
(08-10-2021, 11:00 AM)johntrevor Just for knowledge, may I ask why here you just need to sign patched boot image, while for Unisoc chipsets you also have to custom-build and sign vbmeta with the standard rsa4096 key?
That's because Doogee used rsa2048_vbmeta.pem to sign its partitions. The models in the SPD guides didn't, hence you had to use custom vmbeta to smuggle modified partitions in
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